US3834372A - Disposable manifold with atmospheric vent - Google Patents

Disposable manifold with atmospheric vent Download PDF

Info

Publication number
US3834372A
US3834372A US32327273A US3834372A US 3834372 A US3834372 A US 3834372A US 32327273 A US32327273 A US 32327273A US 3834372 A US3834372 A US 3834372A
Authority
US
United States
Prior art keywords
manifold
recited
passageways
ports
transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
S Turney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US32327273 priority Critical patent/US3834372A/en
Priority to GB56574A priority patent/GB1462391A/en
Priority to CA189,699A priority patent/CA995560A/en
Priority to DE2400983A priority patent/DE2400983A1/en
Priority to FR7401063A priority patent/FR2326121A7/en
Priority to JP635274A priority patent/JPS49109942A/ja
Application granted granted Critical
Publication of US3834372A publication Critical patent/US3834372A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021Measuring pressure in heart or blood vessels
    • A61B5/0215Measuring pressure in heart or blood vessels by means inserted into the body
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/085Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S251/00Valves and valve actuation
    • Y10S251/904Snap fit plug valves
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86493Multi-way valve unit
    • Y10T137/86863Rotary valve unit
    • Y10T137/86871Plug

Definitions

  • ABSTRACT A manifold is formed with a plurality of ports for connection to various components such as arterial-venous pressure generators, a syringe, and a source of fluid and pressure sensitive transducers.
  • the manifold includes one or more rotary members which are selectively positioned for interconnecting selected ones of the components. Various sampling, flushing and pressure measuring operations may be performed by use of the manifold.
  • the manifold further includes a venting port arrangement for venting the pressure sensitive transducers to the atmosphere when a pressure measurement is not being taken. This protects the transducer from overpressurization and consequential damage.
  • This invention relates to protective manifolds, and more particularly to a manifold used with pressure sensitive transducers in the measurement of a system under pressure and with related sampling and flushing components.
  • the transducers are subjected to continuous pressurization during the sampling and flushing operations. This could be caused by an external flushing source which is constantly flushing a fluid through the transducer as a necessity for operation of the transducer. Or it could also be caused by having the sampling or flushing lines turned into the transducer during periods when sampling or flushing operations are in progress.
  • the manifold usually includes some form of valving arrangement to permit the conditioning of the manifold for the various sampling, flushing and measurement operations. It is critically important, especially in medical applications of the manifold, that some means be used to provide external indication of the .particular positioning of the valve arrangement. This will insure safety in the various operations.
  • blood can be drawn from the patientin the sampling operation by use of the pressure line and certain portions of the manifold.
  • this results in the collection of coagulated blood in thepressure line and manifold and causes a reduction in pressure during subsequent pressure-measuring operations.
  • FIG. 1 is a perspective view of a complete multiport manifold assembly embodying certain principles of the invention
  • FIG. 2 is a block diagram showing the manifold of FIG. 1 assembled in a typical application
  • FIG. .3 is a chart-schematic diagram showing five positions of a rotary valve-member of the manifold of FIG. 1 and the function thereof .at each position;
  • FIG. 4 is a plan view of three-valve, multiport manifold further embodying certain principles of the invention.
  • FIG. 5 is a side view of the manifold of FIG. 4 with a section cut away to show an overflow vent arrangement
  • FIG. 6 is a schematic diagram showing the threevalve manifold of FIGS. 4 and 5 and the various selectively available positions for the valves;
  • FIG. 7 is a plan view of a sophisticated, singlevalve, multiport manifold embodying still further principles of the invention.
  • FIG. 8 is a side view of the manifold of FIG. 7;
  • FIG. 9 is a sectional view taken along line 99 of FIG. 8 showing details of the manifold of FIGS. 7 and 8;
  • FIG. 10 is a chart-schematic diagram showing four positions of a rotary valve member of the manifold of FIGS. 7, 8 and 9 and the function thereof at each-position.
  • the manifold 10 includes a control handle 12 which controls the position of a rotary valve member formed integrally with the handle.
  • a handle-position-indicator dial 14 is located adjacent to the handle 12 and cooperates with the handle, which also functions as a pointer, to identify a number of selectable handle positionsQ
  • The-rotary valve member is formed with an opening 16 at one end thereof which facilitates atmospheric venting of a selected-port of themanifold IOIFurther, numbers on the dial 14 indicate functional positioning of the rotary valve member.
  • a plurality of stems are formed integrally with and extend radially from a central, hollowhub housing having an opening which contains the rotary valve member. Two of the stems form a syringe port 18 and a transducer port 20.
  • additional'stems form a saline or flushing fluid port 22 and a pressure port 24.
  • the manifold is arranged and connected so that a syringe 26 is connected to the syringe port 18.
  • a pressure-responsive transducer 28 is connected to the port 20.
  • the transducer 28 controls a bridge circuit and amplifier 30 to provide a readable measurement of pressure being analyzed.
  • a saline source 32 which may be used for a flushing fluid, is connected to the port 22 and a pressure generator 34 is connected to the port 24.
  • Feed lines 36, 38 and 40 are used to facilitate the above-mentioned connections
  • Conductors 42 are used to connect the transducer 28 to the bridge circuit and amplifier 30.
  • the illustrated syringe 26 is a typical type of hydraulic syringe. However, other types of facilities could be used. For example, a bag, capable of containing a fluid, could be connected to the port 18 and squeezed and manipulated by hand to provide the necessary pressure reaction which is commonly accomplished by the syringe 26. y
  • the transducer 28 as illustrated, is a dome type which has a flushing fluid (not shown) being constantly flushed therethrough from an external source (not shown) to prevent damping of a pressure wave form being coupled to the transducer through the manifold 10.
  • a flushing fluid not shown
  • an external source not shown
  • other types of transducers could be utilized.
  • direct-reading, pressure-responsive devices such as mercury-filled manometers can be used.
  • the pressure generator 34 is equivalent to arterial blood pressure of a patient.
  • the feed line 36 could be connected to a catheter, or similar device, for direct insertion into various areas of a patient to measure arterial, venous, cerebral, spinal fluid, gastrointestinal tract and lung pressures.
  • the handle 12 is manipulated to position the rotary valve member within the hub housing so that channels formed internally of the rotary valve member provide an open passageway between selected ports within the manifold 10.
  • the generator 34 can be connected to the syringe 26 for withdrawal of blood samples.
  • the syringe 26 can be connected to the saline source 32 for the withdrawal of flushing fluid into the syringe for subsequent. injection of the fluid into the feed line 36 for cleaning coagulated blood therefrom.
  • An intravenously injectable fluid can replace the saline source 32 and the rotary valve member then positioned to permit direct infusion of the fluid through the manifold 10 into the patient.
  • the stems of the ports 18, 20, 22 and 24 can be of different structure or geometry to indicate which ports are to be connected to the various components such as the syringe 26, transducer 28, salinesource 32 and generator 34, respectively. Further, the stems could be color coded for the same purpose.
  • the chart-schematic diagram is divided into three columns and five rows.
  • the first column illustrates the position of the handle 12, and con-. sequently the position of the rotary valve member.
  • the second column shows the hydraulic circuit of the manifold 10, including the position of the rotary valve member and its internal passageway alignment.
  • the third column shows the function of the manifold 10 in the various positions of the rotary valve member.
  • the pressure generator 34 is connected to the syringe 26. This permits the withdrawal of fluid, such as blood, from the patient by withdrawing the plunger of the syringe 26. This provides patient specimens for analyzation. It should be noted that blood will probably coagulate in the line 36 and passageway of the rotary valve member. This could cause a loss of pressure in later pressure-measuring operations.
  • syringe 26 containing the sampling of blood After the syringe 26 containing the sampling of blood is removed, another syringe can be connected to the port 18 and the handle 12 moved to position 3. This connects the syringe 26 with the saline source 32 whereafter the saline solution can be withdrawn into the syringe to perform the function of filling the syringe with flushing fluid.
  • the handle 12 is moved to position 2 where manipulation of the syringe plunger injects the flushing fluid through and cleans the passageway of the rotary member and thereby removes the coagulated blood.
  • the transducer 28 is vented through the manifold 10 by the vent port 16 formed centrally in one end of the rotary valve member. This venting, when flushing or sampling withdrawal operations are occurring, protects the transducer 28 from overpressurization and consequential damage.
  • the pressure in the transducer 28 is developed by the high pressure flushing of a fluid through the dome of the transducer for the previously mentioned damping purpose. The venting of the transducer 28 precludes the build-up of pressure beyond an acceptable threshold within the transducer and thereby prevents damage and irrepairable destruction of the transducer.
  • the passageway of the rotary valve member connects the pressure generator 34 and the saline source 32 for direct fast flushing of the passageway and feed line 36. Additionally, the saline source 32 could be replaced by a fluid which is to be fed directly into the patient.
  • the handle 12 can be placed in position 5, for a full position swing, to accomplish the same function as is accomplished in position 1.
  • a threevalve, multiport, plastic manifold 44 is illustrated in FIG. 4.
  • the manifold 44 includes three knobs 46, 48 and 50 which are integrally formed with rotary valve members as illustrated by knob 50 and its related valve member in FIG. 5.
  • the knobs 46 and 50 are formed with vent ports 52 and 54, respectively.
  • a series of stems extend laterally from opposite sides of a longitudinal housing of the manifold 44 and form ports 56, 58, 60, 62, 64 and 66.
  • the longitudinal housing of the manifold 44 is formed internally with passageways which extend between and communicate with openings formed in the housing.
  • the openings receive and contain the rotary valve members which are also formed internally with passageways which are alignable with the passageways of the longitudinal housing.
  • Locking caps 68 (FIG. 5) are positioned over and locked on the exposed bottom portions of the rotary valve members to secure for rotation the knobs 46, 48 and 50 and related rotary valve members with the longitudinal housing.
  • knobs 46, 48 and 50 are formed on the face thereof with position indicators or pointers 70, 72 and 74, respectively, and passageway indicators 76, 78 and 80, respectively.
  • the three valve assemblies which include the knobs 46, 48 and 50 are designated 82, 84 and 86 respectively.
  • the knob-visible face of the longitudinal housing are provided with label points about the periphery of the knobs 46, 48 and 50 which can be read in cooperation with the position indicators 70, 72 and 74 to indicate the functional positions of the particular valve assemblies 82, 84 and 86.
  • each label point has a literal label placed adjacent thereto such as READ, FLUSH, FILL, SAMPLE or ZERO. Although these labels would appear in the face of the longitudinal housing, they are illustrated away from the face for clarity purposes only.
  • the longitudinal housing is formed with spaced notches on opposite sides of longitudinal edges thereof to facilitate the secure mounting of the manifold 44 to an attaching structure. This keeps the assemblies 82, 84 and 86 from being vibrated, or from altering their positions due to vibrations, with reference pressure being measured.
  • the use of the manifold 44 permits the assembly of two transducers and two pressure generating systems (artery and vein) thereto. Also the assemblies 82 and 86 have a 90 rotation limit while the assembly 84 is rotatable through a full 360.
  • the assemblies 82 and 84 are positioned to connect an artery line to a syringe for flushing purposes while the assembly 86 is positioned to permit the measurement of venous pressure through a transducer. It is noted that the transducer which is connected to the port 56 is vented through the vent port 52 for protective precluding of overpressurization as previously explained while the flushing operation is in progress.
  • the valve assemblies 82, 84 and 86 By selective positioning of the valve assemblies 82, 84 and 86, various combinations of sampling, flushing and pressure measurement operations can be conducted. In any case, the transducers will always be vented when not being used for pressure measurement.
  • a single valve multiport, plastic manifold 88 includes a knob 90 which is formed integrally with a rotary valve member 112 (FIG. 9).
  • the rotary valve member 112 is positioned within a central opening of a manifold housing.
  • Three stems form ports 92, 94 and 96 and extend from a rear face of the manifold housing.
  • the ports 92, 94 and 96 are to be connected to a transducer, a patient and a fluid source, respectively, as labeled on the top face of the housing.
  • Another stem forms a port 98 and extends from a front face of the housing.
  • the port 98 is to be connected to a syringe as labeled on the top face of the housing. Still another stem forms a port 100 and extends from a side face of the housing and is normally open to the atmoselectively communicate with precisely formed passageways 104 and 106 in the rotary valve member 1 12.
  • openings 108 are formed in the housing of the manifold 88 to facilitate securing of the manifold to an attaching structure which could be a fixed frame or the patient.
  • a locking cap 1 10 is secured over the lower exposed end of the rotary valvemember 112 to secure for rotation the member to the housing.
  • the syringe port 98 extends from the front face of the manifold 88 and thereby permits ready access to the port for the only component, the syringe, which may be frequently worked, or exchanged, during performance of the various operations associated with other components attached to the manifold.
  • the remaining ports 92, 94, 9 6 and are located on the rear or side faces to avoid confusion and danger of introducing wrong substances into the patient.
  • the rotary valve member 112 When the pointer 102 is on the READ position, the rotary valve member 112 is positioned so that the transducer and patient are connected so that the pressure being sensed can be read. As noted previously this could be other pressure areas of the body other than that associated with the blood.
  • the syringe With the pointer 102 on the FILL position, the syringe is connected to the fluid source to permit the withdrawal of fluid into the syringe for subsequent flushing operation. It is important to note that the transducer is vented during this FILL operation.
  • the syringe and the patient are connected to permit a line and manifold flushing operation or a blood or other patient substance sampling operation. It is further noted that the transducer continues to be vented during the FLUSH/SAMPLE operation.
  • the pointer 102 can also be moved to the IV position, which stands for intravenous position, wherein the fluid source is connected to the patient. If the fluid is a flushing fluid, it can be fed directly and quickly to the manifold 88 and the associated patient line for flushing foreign substances such as coagulated blood. It could also be used to infuse continuously intravenously various solutions used in the treatment of patients. Again, the transducer is vented during the IV operation.
  • the transducer is vented for protection against overpressurization during each operation in which the transducer is not being used when the manifold 88 is utilized.
  • vent port 100 can be used to fill the dome of the transducer with fluid for damping purposes, which has been previously mentioned. This can be accomplished at any position except the READ position by connecting a syringe to the vent port' 100 and injecting fluid from the syringe into the dome.
  • the stems of the manifolds 44 and 88 could also be formed of different structure or geometry, or be color coded, to identify the functional purpose thereof rather than have the'labels on the face of the respective housmgs.
  • the rotary valve member can be physically connected to an electrical control system which automatically rotates the valve member in response to electrical signals.
  • the electrical control system could be operated selectively by a program or by a sequential timing circuit.
  • the valve member could be a sliding member rather than rotary. Or it could be both sliding and rotary and thereby movable to different levels of port-connecting facilities to expand the capabilities of the manifold.
  • the valve member could be formed of a structure which is controlled by an external device (not shown) to alter the arrangement of the internal passageways by a variety of means such as by rotation or sliding movement.
  • the valve member could include a pair of elements rotatable relative to each other with a combined internal passageway configuration when two elements are in one relation and another configuration when the elements are rotated relative to each other to a second relation.
  • the two elements of the valve member would be rotated together when used in the manifold for the functions previously described and rotated relative to each other when it is desired to change the particular passageway relation for use in additional functions with the manifold.
  • the same principle could be accomplished if the pair of elements were slidable, rather than rotatable, relative to each other.
  • the manifolds 10, 44 and 88 are sufficiently small, lightweight and inexpensive so that they may be presterilized and packaged in a protective, sealed wrapping until they are to be assembled with the various components for use. After use, they may be discarded or easily dismantled for cleaning, resterilization and reuse. Removal of the locking cap, such as caps 68 and 110, permit dismantling.
  • manifolds 10, 44 and 88 have referred to applications in the medical field, the use of these manifolds can be widespread.
  • manifolds of this type can be used wherever there is a need to measure pressures and transfer liquids or gases. This could be in experimental endeavors or in an actual manufacturing environment.
  • fluid herein refers to liquid as well as gas.
  • a protection manifold which-comprises, means having internal passageways and associated external ports for connecting various components thereto to permit the transfer therethrough of fluids wherein at least some of said fluids are pressurized, means mounted movable and partially within and relative to said connecting means for controlling the selective connection of at least a pair of said connecting-means passageways to connect the various components connected to the external ports of the pair of passageways, and means formed in said controlling means independently of said connecting means for venting to' the atmosphere a selected one of said connecting-means passageways during a period when at least two other passageways are selectively connected by said controlling means to vent the component connected to the sclected one of said passageways.
  • a protection manifold as recited in claim I which 4.
  • a protection manifold as recited in claim 4 wherein said movable member is slidable relative to said connecting means-to effect the selective positioning thereof. YiiMM'MWW'MTMMV 10. A protection manifold as recited in claim 1,
  • said controlling means includes, three movable valve members being assembled within the three openings of said housing, and each of said valve members being formed with passageways which selectively connect the housing passageways and ports; and 1 said venting means includes a passageway formed in each of at least two of the three valve members to selectively provide a venting passageway for at least two of said ports and components connected thereto. 13.
  • a protection manifold as recited in claim 1 wherein said ports are provided for connecting to a syringe, a pressure sensitive transducer, a fluid source and selected areas of a patient, said controlling means is selectively manipulatable relative to said connecting means to selectively connect the syringe with the fluid source or the patient areas for flushing and sampling operations, and to selectively connect the patient areas to the transducer for pressure measurement, and said venting means is connected protectively to the transducer when the syringe is connected to the fluid source or the patient.

Abstract

A manifold is formed with a plurality of ports for connection to various components such as arterial-venous pressure generators, a syringe, and a source of fluid and pressure sensitive transducers. The manifold includes one or more rotary members which are selectively positioned for interconnecting selected ones of the components. Various sampling, flushing and pressure measuring operations may be performed by use of the manifold. The manifold further includes a venting port arrangement for venting the pressure sensitive transducers to the atmosphere when a pressure measurement is not being taken. This protects the transducer from overpressurization and consequential damage.

Description

United States Patent [191 Turney DISPOSABLE MANIFOLD WITH ATMOSPHERIC VENT [76] Inventor: Stephen Z. Turney, 320 Morris Ave., Lutherville, Md. 21093 [22] Filed: Jan. 12, 1973 [21] Appl. No.: 323,272
128/2.05 R, 214 R, 221, 274; l37/625.41, 625.42, 625.47, 625.24, 625.16, 625.15, 625.19; 251/181, 309, 310, 184, 297; 73/388 R, 398, 392.4, 389
[56] References Cited UNITED STATES PATENTS 717,899 1/1903 McDonald 137/625.47 X 1,854,307 4/1932 Hapgood l37/625.19 2,409,435 10/1946 Ketay et a1 73/388 R 2,485,842 10/1949 Pennington 128/214 R 2,600,324 6/1952 Rappaport 73/388 R 2,960,086 11/1960 Keller 137/625.47 X 3,157,201 11/1964 Littmann 128/2.05 D 3,526,136 9/1970 Caldwell, Sr. et a1. 251/309 X Sept. 10, 1974 3,526,218 9/1970 Reiss l28/2.05 D 3,610,228 10/1971 Temkin 128/2.05 D
FOREIGN PATENTS OR APPLICATIONS 560,788 4/1957 ltaly 137/625.47 1,116,997 6/1968 Great Britain 128/2.05 D
Primary Examiner--Richard A. Gaudet Assistant Examiner-J. C. McGowan Attorney, Agent, or Firm-Walter G. Finch, Esq.
[57] ABSTRACT A manifold is formed with a plurality of ports for connection to various components such as arterial-venous pressure generators, a syringe, and a source of fluid and pressure sensitive transducers. The manifold includes one or more rotary members which are selectively positioned for interconnecting selected ones of the components. Various sampling, flushing and pressure measuring operations may be performed by use of the manifold. The manifold further includes a venting port arrangement for venting the pressure sensitive transducers to the atmosphere when a pressure measurement is not being taken. This protects the transducer from overpressurization and consequential damage.
14 Claims, 10 Drawing Figures PATENIED SEP 1 0 I974 PRESSURE GENERATOR EQUIVALENT TO ARTERIAL BLOOD PRESSURE i 36 SAL/NE SOURCE /0 32 l2 f: u
1 22 I T //I 1W H \v l6 SYR/NGE L 20 38 BRIDGE CIRCUIT 42 AND AMPLIFIER CE TRANSDL2J8 R FOR PRESSURE TRANSDUCER FIG. 2
Pmmaabswm 8m 2w 3.834.372
' HANDLE POSITION HYDRAULIC C/RCU/T FUNCTION /4 PRESSURE GENERATOR 34 ,0
1 MEASURE TRANSDUCER 28 PRESSURE GENERATOR 34 W/THDRAW E SYR/NGE FLUSH 2 BALANCE TRANSDUCER 28 SAL/NE L SYR/NGE PRESSURE GENERATOR 34 I 4 f FAsT FLUSH WITHOUT SAL/N5 SYR/NGE /80 PRESSURE GENERATOR 34 MEASURE TRANSDUCER 28 FIG. 3
PAIENIEDsmmsn M a 5 3.834372 44 2 a i 46 4a 50 54 FIG. 5
T0 T0 T0 44 ARTERY SYR/NGE vs/zv 90 ROTATION? 56' l T0 BLOOD TO TRANSDUCER SAMPLING TRANSDUCER FIG. 6
PATENIED W974 saw u a 5 3.834.372
\I FLUIDW PATIENT [TRANS- DUCER SAMPLE O READ O O FILL FLUSH/ SYRINGE' IOO VENT FIG. 7
.II .III
FIG. 8
FIG. 9
PAIENIEH SE? 1 01914 SHEET 5 Bf 5 Sw/TCH HYDRAULIC PDS/T/DN C/RCU/T FU/VC T/O/V TRANSDUCER PAT/ENT FLU/D READ TRANSDUCER vENT l READ O O 1vv F/LL FLUSH/ PAT/5N7 SAMPLE SYR/NCE TRANSDUCER PAT/ENT FLU/D F/LL T f SYRiNGE v FLU/D O R O vENT EAD IV R O O TRANSDUCER FILL FLUSH/ SAMPLE i SYR/NCE VENT TRANSDUCER PAT/ENT FLU/D 9 SYR/NGE PAT/ENT FILL FLUSH/ TRANSDUCER SAMPLE i SYR/NCE VENT TRANSDUCER PAT/ENT FLU/D IV FLU/D PAT/ENT READ [V O O TRANSDUCER F/LL FLUSH/ i SAMPLE SYR/NGE vENT FIG. 10
DISPOSABLE MANIFOLD WITH ATMOSPHERIC VENT This invention relates to protective manifolds, and more particularly to a manifold used with pressure sensitive transducers in the measurement of a system under pressure and with related sampling and flushing components.
There is a constant need for the measurement of pressure existing within a system such as, for example, an arterial blood system of a human being. This can be accomplished by connecting the pressure system to a pressure sensitive transducer which develops a readable measurement. In blood pressure measuring systems using this principle, a manifold is frequently employed to permit the further sampling of blood through the pressure line connected to the artery of the patient and, further, to permit flushing of the pressure line to insure removal of coagulated blood and other undesirable substances.
In use of available manifolds for this multiple purpose, the transducers are subjected to continuous pressurization during the sampling and flushing operations. This could be caused by an external flushing source which is constantly flushing a fluid through the transducer as a necessity for operation of the transducer. Or it could also be caused by having the sampling or flushing lines turned into the transducer during periods when sampling or flushing operations are in progress.
Regardless of the reason or manner in which the transducer is continuously pressurized, overpressurization frequentlyoccurs in the transducer which is seriously damaged as a result thereof. Needless to say the time and cost of repairing the damaged transducer results in an expensive maintenance program and requires additional inventory to insure the availability of working transducers when needed. In many instances such damaged transducers are irrepairable. Thus, there is a need fora manifold which will permit selective pressure measurement and further sampling and flushing operations of a fluid-pressure system, such as the arterial blood system of a human being, without overpressurizing the transducer at anytime during the various operations.
The manifold usually includes some form of valving arrangement to permit the conditioning of the manifold for the various sampling, flushing and measurement operations. It is critically important, especially in medical applications of the manifold, that some means be used to provide external indication of the .particular positioning of the valve arrangement. This will insure safety in the various operations.
Additionally, some means should be provided for insuring that the various components be connected to proper ports of the manifold. Otherwise improper connections between components can result with potentially serious consequences.
As noted previously, in one medical application of such a system,blood can be drawn from the patientin the sampling operation by use of the pressure line and certain portions of the manifold. Generally, this results in the collection of coagulated blood in thepressure line and manifold and causes a reduction in pressure during subsequent pressure-measuring operations.
In order to overcome this deficiency, there is a need for a flushing system which permits selective flushing of the portions to be cleaned without subjecting the pressure sensitive transducer to any pressurized fluids during the flushing period.
It is an object of this invention, therefore, to provide a manifold which will permit selective utilization of a pressure sensitive transducer and sampling and flushing facilities without overpressurization of the transducer.
conducted through the manifold exclusive of the transducer.
Other objects and attendant advantages of this invention will become more readily apparent and understood from the following detailed specification and accompanying drawings in which:
FIG. 1 is a perspective view of a complete multiport manifold assembly embodying certain principles of the invention;
FIG. 2 is a block diagram showing the manifold of FIG. 1 assembled in a typical application;
FIG. .3 is a chart-schematic diagram showing five positions of a rotary valve-member of the manifold of FIG. 1 and the function thereof .at each position; I
FIG. 4 is a plan view of three-valve, multiport manifold further embodying certain principles of the invention;
FIG. 5 is a side view of the manifold of FIG. 4 with a section cut away to show an overflow vent arrangement;
FIG. 6 is a schematic diagram showing the threevalve manifold of FIGS. 4 and 5 and the various selectively available positions for the valves;
FIG. 7 is a plan view of a sophisticated, singlevalve, multiport manifold embodying still further principles of the invention;
FIG. 8 is a side view of the manifold of FIG. 7;
FIG. 9 is a sectional view taken along line 99 of FIG. 8 showing details of the manifold of FIGS. 7 and 8; and
FIG. 10 is a chart-schematic diagram showing four positions of a rotary valve member of the manifold of FIGS. 7, 8 and 9 and the function thereof at each-position.
Referring to FIG. 1,'there is shown a protective manifold 10 composed of a plastic material and embodying certain principles of the invention. The manifold 10 includes a control handle 12 which controls the position of a rotary valve member formed integrally with the handle. A handle-position-indicator dial 14 is located adjacent to the handle 12 and cooperates with the handle, which also functions as a pointer, to identify a number of selectable handle positionsQThe-rotary valve member is formed with an opening 16 at one end thereof which facilitates atmospheric venting of a selected-port of themanifold IOIFurther, numbers on the dial 14 indicate functional positioning of the rotary valve member. A plurality of stems are formed integrally with and extend radially from a central, hollowhub housing having an opening which contains the rotary valve member. Two of the stems form a syringe port 18 and a transducer port 20.
As further illustrated in FIG. 2, additional'stems form a saline or flushing fluid port 22 and a pressure port 24. The manifold is arranged and connected so that a syringe 26 is connected to the syringe port 18. A pressure-responsive transducer 28 is connected to the port 20. The transducer 28 controls a bridge circuit and amplifier 30 to provide a readable measurement of pressure being analyzed. A saline source 32 which may be used for a flushing fluid, is connected to the port 22 and a pressure generator 34 is connected to the port 24. Feed lines 36, 38 and 40 are used to facilitate the above-mentioned connections Conductors 42 are used to connect the transducer 28 to the bridge circuit and amplifier 30.
The illustrated syringe 26 is a typical type of hydraulic syringe. However, other types of facilities could be used. For example, a bag, capable of containing a fluid, could be connected to the port 18 and squeezed and manipulated by hand to provide the necessary pressure reaction which is commonly accomplished by the syringe 26. y
The transducer 28, as illustrated, is a dome type which has a flushing fluid (not shown) being constantly flushed therethrough from an external source (not shown) to prevent damping of a pressure wave form being coupled to the transducer through the manifold 10. However, other types of transducers could be utilized. Or direct-reading, pressure-responsive devices such as mercury-filled manometers can be used.
The pressure generator 34 is equivalent to arterial blood pressure of a patient. The feed line 36 could be connected to a catheter, or similar device, for direct insertion into various areas of a patient to measure arterial, venous, cerebral, spinal fluid, gastrointestinal tract and lung pressures.
In use, the handle 12 is manipulated to position the rotary valve member within the hub housing so that channels formed internally of the rotary valve member provide an open passageway between selected ports within the manifold 10. This will permit, for example, connecting of the pressure generator 34 with the transducer 28. The generator 34 can be connected to the syringe 26 for withdrawal of blood samples. The syringe 26 can be connected to the saline source 32 for the withdrawal of flushing fluid into the syringe for subsequent. injection of the fluid into the feed line 36 for cleaning coagulated blood therefrom. An intravenously injectable fluid can replace the saline source 32 and the rotary valve member then positioned to permit direct infusion of the fluid through the manifold 10 into the patient.
The stems of the ports 18, 20, 22 and 24 can be of different structure or geometry to indicate which ports are to be connected to the various components such as the syringe 26, transducer 28, salinesource 32 and generator 34, respectively. Further, the stems could be color coded for the same purpose.
Referring to FIG. 3, the chart-schematic diagram is divided into three columns and five rows. The first column illustrates the position of the handle 12, and con-. sequently the position of the rotary valve member.
The second column shows the hydraulic circuit of the manifold 10, including the position of the rotary valve member and its internal passageway alignment. The third column shows the function of the manifold 10 in the various positions of the rotary valve member.
When the handle is in position 1, the passageway of the rotary valve member of the manifold 10 connects the pressure generator 34 to the transducer 28 with the resultant function being to measure the pressure. Notice that all remaining ports are closed by virtue of the selective positioningof the rotary valve member.
In position 2 of the handle, the pressure generator 34 is connected to the syringe 26. This permits the withdrawal of fluid, such as blood, from the patient by withdrawing the plunger of the syringe 26. This provides patient specimens for analyzation. It should be noted that blood will probably coagulate in the line 36 and passageway of the rotary valve member. This could cause a loss of pressure in later pressure-measuring operations.
After the syringe 26 containing the sampling of blood is removed, another syringe can be connected to the port 18 and the handle 12 moved to position 3. This connects the syringe 26 with the saline source 32 whereafter the saline solution can be withdrawn into the syringe to perform the function of filling the syringe with flushing fluid. The handle 12 is moved to position 2 where manipulation of the syringe plunger injects the flushing fluid through and cleans the passageway of the rotary member and thereby removes the coagulated blood.
It is particularly significant to note that while the handle 12 is in position 2, the transducer 28 is vented through the manifold 10 by the vent port 16 formed centrally in one end of the rotary valve member. This venting, when flushing or sampling withdrawal operations are occurring, protects the transducer 28 from overpressurization and consequential damage. The pressure in the transducer 28 is developed by the high pressure flushing of a fluid through the dome of the transducer for the previously mentioned damping purpose. The venting of the transducer 28 precludes the build-up of pressure beyond an acceptable threshold within the transducer and thereby prevents damage and irrepairable destruction of the transducer.
When the handle is placed in position 4, the passageway of the rotary valve member connects the pressure generator 34 and the saline source 32 for direct fast flushing of the passageway and feed line 36. Additionally, the saline source 32 could be replaced by a fluid which is to be fed directly into the patient.
The handle 12 can be placed in position 5, for a full position swing, to accomplish the same function as is accomplished in position 1.
In another embodiment of the invention, a threevalve, multiport, plastic manifold 44 is illustrated in FIG. 4. The manifold 44 includes three knobs 46, 48 and 50 which are integrally formed with rotary valve members as illustrated by knob 50 and its related valve member in FIG. 5. The knobs 46 and 50 are formed with vent ports 52 and 54, respectively. A series of stems extend laterally from opposite sides of a longitudinal housing of the manifold 44 and form ports 56, 58, 60, 62, 64 and 66.
The longitudinal housing of the manifold 44 is formed internally with passageways which extend between and communicate with openings formed in the housing. The openings receive and contain the rotary valve members which are also formed internally with passageways which are alignable with the passageways of the longitudinal housing. Locking caps 68 (FIG. 5) are positioned over and locked on the exposed bottom portions of the rotary valve members to secure for rotation the knobs 46, 48 and 50 and related rotary valve members with the longitudinal housing.
As further illustrated in FIG. 4, the knobs 46, 48 and 50 are formed on the face thereof with position indicators or pointers 70, 72 and 74, respectively, and passageway indicators 76, 78 and 80, respectively. The three valve assemblies which include the knobs 46, 48 and 50 are designated 82, 84 and 86 respectively.
The knob-visible face of the longitudinal housing are provided with label points about the periphery of the knobs 46, 48 and 50 which can be read in cooperation with the position indicators 70, 72 and 74 to indicate the functional positions of the particular valve assemblies 82, 84 and 86. To further facilitate the determination of functional positioning of the valve assemblies 82, 84 and 86, each label point has a literal label placed adjacent thereto such as READ, FLUSH, FILL, SAMPLE or ZERO. Although these labels would appear in the face of the longitudinal housing, they are illustrated away from the face for clarity purposes only.
The longitudinal housing is formed with spaced notches on opposite sides of longitudinal edges thereof to facilitate the secure mounting of the manifold 44 to an attaching structure. This keeps the assemblies 82, 84 and 86 from being vibrated, or from altering their positions due to vibrations, with reference pressure being measured.
'As illustrated in FIG. 6, the use of the manifold 44 permits the assembly of two transducers and two pressure generating systems (artery and vein) thereto. Also the assemblies 82 and 86 have a 90 rotation limit while the assembly 84 is rotatable through a full 360.
As shown, the assemblies 82 and 84 are positioned to connect an artery line to a syringe for flushing purposes while the assembly 86 is positioned to permit the measurement of venous pressure through a transducer. It is noted that the transducer which is connected to the port 56 is vented through the vent port 52 for protective precluding of overpressurization as previously explained while the flushing operation is in progress. By selective positioning of the valve assemblies 82, 84 and 86, various combinations of sampling, flushing and pressure measurement operations can be conducted. In any case, the transducers will always be vented when not being used for pressure measurement.
As illustrated in FIG. 7, a single valve multiport, plastic manifold 88, embodying certain principles of the invention, includes a knob 90 which is formed integrally with a rotary valve member 112 (FIG. 9). The rotary valve member 112 is positioned within a central opening of a manifold housing. Three stems form ports 92, 94 and 96 and extend from a rear face of the manifold housing. The ports 92, 94 and 96 are to be connected to a transducer, a patient and a fluid source, respectively, as labeled on the top face of the housing. Another stem forms a port 98 and extends from a front face of the housing. The port 98 is to be connected to a syringe as labeled on the top face of the housing. Still another stem forms a port 100 and extends from a side face of the housing and is normally open to the atmoselectively communicate with precisely formed passageways 104 and 106 in the rotary valve member 1 12.
Referring to FIG. 7, openings 108 are formed in the housing of the manifold 88 to facilitate securing of the manifold to an attaching structure which could be a fixed frame or the patient.
As shown in FIG. 8, a locking cap 1 10 is secured over the lower exposed end of the rotary valvemember 112 to secure for rotation the member to the housing.
It is also noted that the syringe port 98 extends from the front face of the manifold 88 and thereby permits ready access to the port for the only component, the syringe, which may be frequently worked, or exchanged, during performance of the various operations associated with other components attached to the manifold. The remaining ports 92, 94, 9 6 and are located on the rear or side faces to avoid confusion and danger of introducing wrong substances into the patient.
Referring to FIG. 10, the chart-schematic diagram is displayed in the same column and row arrangement as the diagram of FIG. 3.
When the pointer 102 is on the READ position, the rotary valve member 112 is positioned so that the transducer and patient are connected so that the pressure being sensed can be read. As noted previously this could be other pressure areas of the body other than that associated with the blood.
With the pointer 102 on the FILL position, the syringe is connected to the fluid source to permit the withdrawal of fluid into the syringe for subsequent flushing operation. It is important to note that the transducer is vented during this FILL operation.
As the pointer 102 is placed on the FLUSH/SAM- PLE" position, the syringe and the patient are connected to permit a line and manifold flushing operation or a blood or other patient substance sampling operation. It is further noted that the transducer continues to be vented during the FLUSH/SAMPLE operation.
The pointer 102 can also be moved to the IV position, which stands for intravenous position, wherein the fluid source is connected to the patient. If the fluid is a flushing fluid, it can be fed directly and quickly to the manifold 88 and the associated patient line for flushing foreign substances such as coagulated blood. It could also be used to infuse continuously intravenously various solutions used in the treatment of patients. Again, the transducer is vented during the IV operation.
Thus the transducer is vented for protection against overpressurization during each operation in which the transducer is not being used when the manifold 88 is utilized.
Further, the vent port 100 can be used to fill the dome of the transducer with fluid for damping purposes, which has been previously mentioned. This can be accomplished at any position except the READ position by connecting a syringe to the vent port' 100 and injecting fluid from the syringe into the dome.
The stems of the manifolds 44 and 88 could also be formed of different structure or geometry, or be color coded, to identify the functional purpose thereof rather than have the'labels on the face of the respective housmgs.
It is also possible to control the movement of the various rotary valve members of the various embodiments of manifolds 10, 44 and 88 by use of an external con trolling device (not shown). For example, the rotary valve member can be physically connected to an electrical control system which automatically rotates the valve member in response to electrical signals. The electrical control system could be operated selectively by a program or by a sequential timing circuit. Further, the valve member could be a sliding member rather than rotary. Or it could be both sliding and rotary and thereby movable to different levels of port-connecting facilities to expand the capabilities of the manifold.
The valve member could be formed of a structure which is controlled by an external device (not shown) to alter the arrangement of the internal passageways by a variety of means such as by rotation or sliding movement. For example, the valve member could include a pair of elements rotatable relative to each other with a combined internal passageway configuration when two elements are in one relation and another configuration when the elements are rotated relative to each other to a second relation. The two elements of the valve member would be rotated together when used in the manifold for the functions previously described and rotated relative to each other when it is desired to change the particular passageway relation for use in additional functions with the manifold. The same principle could be accomplished if the pair of elements were slidable, rather than rotatable, relative to each other.
The manifolds 10, 44 and 88 are sufficiently small, lightweight and inexpensive so that they may be presterilized and packaged in a protective, sealed wrapping until they are to be assembled with the various components for use. After use, they may be discarded or easily dismantled for cleaning, resterilization and reuse. Removal of the locking cap, such as caps 68 and 110, permit dismantling.
While the particularly described embodiments of manifolds 10, 44 and 88 have referred to applications in the medical field, the use of these manifolds can be widespread. For example, manifolds of this type can be used wherever there is a need to measure pressures and transfer liquids or gases. This could be in experimental endeavors or in an actual manufacturing environment. It is to be further understood that the use of the term fluid herein refers to liquid as well as gas.
Obviously, many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.
What is claimed is:
l. A protection manifold, which-comprises, means having internal passageways and associated external ports for connecting various components thereto to permit the transfer therethrough of fluids wherein at least some of said fluids are pressurized, means mounted movable and partially within and relative to said connecting means for controlling the selective connection of at least a pair of said connecting-means passageways to connect the various components connected to the external ports of the pair of passageways, and means formed in said controlling means independently of said connecting means for venting to' the atmosphere a selected one of said connecting-means passageways during a period when at least two other passageways are selectively connected by said controlling means to vent the component connected to the sclected one of said passageways.
2. A protection manifold as recited in claim I, which 4. A protection manifold as recited in claim 1 wherein said controlling means includes, a movable valve member positioned within an opening of said connecting means, said member formed with passageways in a selected pattern so that when said valve member is selectively positioned selected passageways of said connecting means are connected through the passageways of said member.
5. A protection manifold as recited in claim 4 wherein said venting means includes, a selectively formed passageway in said movable valve member which is aligned with a selected one of said ports for the selective venting of the component connected thereto.
6. A protection manifold as recited in claim 2, wherein said indicating means includes, pointer means formed with said movably mounted controlling means, and labels placed selectively in fixed locations on said connecting means adjacent to positions at which said pointer is positionable.
7. A protection manifold as recited in claim 1, wherein said connecting, controlling and venting means are formed of plastic.
8. A protection manifold as recited in claim 4 wherein said movable member is rotatable relative to said connecting means to effect the selective positioning thereof.
9. A protection manifold as recited in claim 4, wherein said movable member is slidable relative to said connecting means-to effect the selective positioning thereof. YiiMM'MWW'MTMMV 10. A protection manifold as recited in claim 1,
opening and each of said side openings, and a pair of ports communicating with each opening;
said controlling means includes, three movable valve members being assembled within the three openings of said housing, and each of said valve members being formed with passageways which selectively connect the housing passageways and ports; and 1 said venting means includes a passageway formed in each of at least two of the three valve members to selectively provide a venting passageway for at least two of said ports and components connected thereto. 13. A protection manifold as recited in claim 1 wherein said ports are provided for connecting to a syringe, a pressure sensitive transducer, a fluid source and selected areas of a patient, said controlling means is selectively manipulatable relative to said connecting means to selectively connect the syringe with the fluid source or the patient areas for flushing and sampling operations, and to selectively connect the patient areas to the transducer for pressure measurement, and said venting means is connected protectively to the transducer when the syringe is connected to the fluid source or the patient.
14. A protection manifold as recited in claim 1, which further comprises means physically connected to said controlling means for operating and controlling means to selected positions.

Claims (14)

1. A protection manifold, which comprises, means having internal passageways and associated external ports for connecting various components thereto to permit the transfer therethrough of fluids wherein at least some of said fluids are pressurized, means mounted movable and partially within and relative to said connecting means for controlling the selective connection of at least a pair of said connecting-means passageways to connect the various components connected to the external ports of the pair of passageways, and means formed in said controlling means independently of said connecting means for venting to the atmosphere a selected one of said connecting-means passageways during a period when at least two other passageways are selectively connected by said controlling means to vent the component connected to the selected one of said passageways.
2. A protection manifold as recited in claim 1, which further comprises, means appearing partially and externally on each of said connecting and controlling means for indicating the selective positioning of said controlling means.
3. A protection manifold as recited in claim 1, wherein said connecting means includes, a housing, at least one opening formed in said housing, a plurality of hollow stems extending from said housing and forming ports, and said ports forming a plurality of passageways in said housing with at least one passageway extending from said opening to an exterior face of said housing.
4. A protection manifold as recited in claim 1 wherein said controlling means includes, a movable valve member positioned within an opening of said connecting means, said member formed with passageways in a selected pattern so that when said valve member is selectively positioned selected passageways of said connecting means are connected through the passageways of said member.
5. A protection manifold as recited in claim 4 wherein said venting means includes, a selectively formed passageway in said movable valve member which is aligned with a selected one of said ports for the selective venting of the component connected thereto.
6. A protection manifold as recited in claim 2, wherein said indicating means includes, pointer means formed with said movably mounted controlling means, and labels placed selectively in fixed locations on said connecting means adjacent to positions at which said pointer is positionable.
7. A protection manifold as recited in claim 1, wherein said connecting, controlling and venting means are formed of plastic.
8. A protection manifold as recited in claim 4 wherein said movable member is rotatable relative to said connecting means to effect the selective positioning thereof.
9. A protection manifold as recited in claim 4, wherein said movable member is slidable relative to said connecting means to effect the selective positioning thereof.
10. A protection manifold as recited in claim 1, which further comprises, means formed in said connecting means for securing the manifold to An attaching structure.
11. A protection manifold as recited in claim 3 wherein each of said stems are formed of a different geometry to indicate the function of the component to be connected thereto.
12. A protection manifold as recited in claim 1 wherein said connecting means includes, a housing, a central and two side openings formed in one face thereof, a passageway extending between said central opening and each of said side openings, and a pair of ports communicating with each opening; said controlling means includes, three movable valve members being assembled within the three openings of said housing, and each of said valve members being formed with passageways which selectively connect the housing passageways and ports; and said venting means includes a passageway formed in each of at least two of the three valve members to selectively provide a venting passageway for at least two of said ports and components connected thereto.
13. A protection manifold as recited in claim 1 wherein said ports are provided for connecting to a syringe, a pressure sensitive transducer, a fluid source and selected areas of a patient, said controlling means is selectively manipulatable relative to said connecting means to selectively connect the syringe with the fluid source or the patient areas for flushing and sampling operations, and to selectively connect the patient areas to the transducer for pressure measurement, and said venting means is connected protectively to the transducer when the syringe is connected to the fluid source or the patient.
14. A protection manifold as recited in claim 1, which further comprises means physically connected to said controlling means for operating and controlling means to selected positions.
US32327273 1973-01-12 1973-01-12 Disposable manifold with atmospheric vent Expired - Lifetime US3834372A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US32327273 US3834372A (en) 1973-01-12 1973-01-12 Disposable manifold with atmospheric vent
GB56574A GB1462391A (en) 1973-01-12 1974-01-07 Fluid flow control valve
CA189,699A CA995560A (en) 1973-01-12 1974-01-08 Disposable manifold
DE2400983A DE2400983A1 (en) 1973-01-12 1974-01-10 MULTI-HOLE DISTRIBUTION PIECE
FR7401063A FR2326121A7 (en) 1973-01-12 1974-01-11 SAFETY MANIFOLD FOR LIQUID CIRCUIT
JP635274A JPS49109942A (en) 1973-01-12 1974-01-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32327273 US3834372A (en) 1973-01-12 1973-01-12 Disposable manifold with atmospheric vent

Publications (1)

Publication Number Publication Date
US3834372A true US3834372A (en) 1974-09-10

Family

ID=23258449

Family Applications (1)

Application Number Title Priority Date Filing Date
US32327273 Expired - Lifetime US3834372A (en) 1973-01-12 1973-01-12 Disposable manifold with atmospheric vent

Country Status (6)

Country Link
US (1) US3834372A (en)
JP (1) JPS49109942A (en)
CA (1) CA995560A (en)
DE (1) DE2400983A1 (en)
FR (1) FR2326121A7 (en)
GB (1) GB1462391A (en)

Cited By (144)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957082A (en) * 1974-09-26 1976-05-18 Arbrook, Inc. Six-way stopcock
US3999538A (en) * 1975-05-22 1976-12-28 Buren Philpot V Jun Method of blood viscosity determination
US4082095A (en) * 1975-10-09 1978-04-04 Barry Mendelson Stomach pump
US4187849A (en) * 1978-07-28 1980-02-12 Stim Edward M Suction curettage device with valve control and support means for differing diameter tubes
US4217911A (en) * 1978-10-27 1980-08-19 The Kendall Company Cystometry system
US4301811A (en) * 1978-10-27 1981-11-24 The Kendall Company Cystometry system
EP0077151A1 (en) * 1981-10-13 1983-04-20 American Hospital Supply Corporation Manifold for monitoring hemodynamic pressure
US4397335A (en) * 1981-05-26 1983-08-09 Doblar Dennis D Rotary valve especially useful in a medical system including a flow-directed venous catheter
US4407660A (en) * 1981-09-08 1983-10-04 Baxter Travenol Laboratories, Inc. Plasmapheresis assembly and associated fluid manifold
US4447235A (en) * 1981-05-07 1984-05-08 John M. Clarke Thoracentesis device
WO1984001805A1 (en) * 1982-11-01 1984-05-10 Allan M Parham Medical stopcock valve assembly
US4479459A (en) * 1982-07-13 1984-10-30 International Telephone And Telegraph Corporation Sequencing blow down valve mechanism
US4604093A (en) * 1984-06-12 1986-08-05 I-Flow Corporation Apparatus and method for administering multiple fluid infusions
US4608996A (en) * 1984-08-10 1986-09-02 Cordis Corporation External blood parameter diagnostic system
US4621647A (en) * 1982-08-10 1986-11-11 Medex, Inc. Intracranial pressure regulating system
US4648868A (en) * 1985-09-30 1987-03-10 American Hospital Supply Corporation Apparatus for controlling flow and pressure measurement
EP0213620A2 (en) 1985-08-30 1987-03-11 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Stopcock device
US4702269A (en) * 1985-03-12 1987-10-27 Donaldson Company, Inc. By-pass valve
GB2194890A (en) * 1986-09-12 1988-03-23 Boc Group Plc Cannula assembly
WO1988001846A1 (en) * 1986-09-12 1988-03-24 Philip Wyatt Method and apparatus for arterial and venous blood sampling
US4734091A (en) * 1985-02-11 1988-03-29 Atlantic Optical Systems, Inc. Filtered manifold apparatus and method for ophthalmic irrigation
US4738265A (en) * 1987-03-30 1988-04-19 Baxter Travenol Laboratories, Inc. Dual stop cock
US4807666A (en) * 1987-08-26 1989-02-28 North American Instruments Corp. Stopcock valve for high pressure applications
US4900322A (en) * 1986-09-22 1990-02-13 Adams James D Blood component pooling valve and kit
US4904245A (en) * 1988-12-07 1990-02-27 Allen S. Chen Surgical valve assembly for urinary bladder irrigation and drainage
US4949723A (en) * 1987-10-15 1990-08-21 Utah Medical Products, Inc. Medical pressure multiplexing system
US4961883A (en) * 1989-03-14 1990-10-09 Gerald Jacino Glass break repair apparatus valve and method
US4967797A (en) * 1989-08-16 1990-11-06 Manska Wayne E Tap valve
US4981140A (en) * 1986-09-12 1991-01-01 Philip Wyatt Method and apparatus for arterial and venous blood sampling
WO1991006331A1 (en) * 1989-11-06 1991-05-16 Mectra Labs, Inc. Medical device valving mechanism
WO1991018632A1 (en) * 1990-05-25 1991-12-12 St. Jude Medical, Inc. Fluid control valve
US5084031A (en) * 1989-09-12 1992-01-28 Research Medical, Inc. Cardioplegia three-way double stopcock
US5097840A (en) * 1987-10-15 1992-03-24 Utah Medical Products, Inc. Medical pressure multiplexing system
US5135026A (en) * 1989-08-16 1992-08-04 Manska Wayne E Medical valve having fluid flow indicia
US5144972A (en) * 1991-10-02 1992-09-08 Dryden Gale E Stopcock with a protective assembly
US5203769A (en) * 1989-11-06 1993-04-20 Mectra Labs, Inc. Medical device valving mechanism
US5207641A (en) * 1989-05-15 1993-05-04 Bird Medical International Inc. Medical rotary valve having aspiration, insufflation and an intermediate flushing positions
US5241990A (en) * 1992-07-10 1993-09-07 Inlet Medical, Inc. Irrigation/aspiration valve and probe for laparoscopy
US5250065A (en) * 1990-09-11 1993-10-05 Mectra Labs, Inc. Disposable lavage tip assembly
US5256160A (en) * 1989-11-06 1993-10-26 Mectra Labs, Inc. Medical device valving mechanism
US5265840A (en) * 1992-10-09 1993-11-30 Symbiosis Corporation Pinch valve
US5288290A (en) * 1991-09-25 1994-02-22 Alcon Surgical, Inc. Multi-ported valve assembly
WO1994005350A1 (en) * 1992-09-02 1994-03-17 Perry Creek Group Corporation Pulmonary artery catheter monitoring bridge
US5300046A (en) * 1992-03-30 1994-04-05 Symbiosis Corporation Thoracentesis sheath catheter assembly
US5306237A (en) * 1989-11-06 1994-04-26 Mectra Labs, Inc. Disposable lavage
US5338292A (en) * 1989-11-06 1994-08-16 Mectra Labs, Inc. Disposable lavage with instrument shield
US5340364A (en) * 1991-01-11 1994-08-23 Dideco S.R.L. Device for selectively drawing samples of blood from two sections of a line and for injecting blood into said line
US5372581A (en) * 1993-07-21 1994-12-13 Minneapolis Children's Services Corporation Method and apparatus for placental blood collection
US5403290A (en) * 1992-04-20 1995-04-04 Noble; Lisa W. Gastric adapter/stopcock
US5409013A (en) * 1989-11-06 1995-04-25 Mectra Labs, Inc. Tissue removal assembly
US5443453A (en) * 1994-04-21 1995-08-22 Sherwood Medical Company Stop-cock valve
US5466228A (en) * 1991-01-25 1995-11-14 California State University, Fresno Foundation Fluid control apparatus
US5505210A (en) * 1989-11-06 1996-04-09 Mectra Labs, Inc. Lavage with tissue cutting cannula
US5527332A (en) * 1994-11-02 1996-06-18 Mectra Labs, Inc. Tissue cutter for surgery
US5578016A (en) * 1994-07-29 1996-11-26 Elcam Plastic Kibbutz Bar-Am Stopcock
USD379492S (en) * 1995-06-05 1997-05-27 Sherwood Medical Company Stop-cock valve
US5655541A (en) * 1994-12-29 1997-08-12 Vattuone; John R. Fine needle cytology aspiration device
US5658248A (en) * 1995-08-04 1997-08-19 Localmed, Inc. Double-blind infusion device and method
US5743883A (en) * 1995-06-07 1998-04-28 Visconti; Peter L. Thoracentesis catheter instruments having self-sealing valves
US5797907A (en) * 1989-11-06 1998-08-25 Mectra Labs, Inc. Electrocautery cutter
EP0893094A1 (en) * 1997-07-23 1999-01-27 pvb medizintechnik gmbh & co. kg Blood sampling device
US5865812A (en) * 1995-09-27 1999-02-02 United States Surgical Corporation Fluid flow control apparatus for surgical cannulae
EP0895751A1 (en) * 1997-07-23 1999-02-10 pvb medizintechnik gmbh & co. kg Blood sampling device
WO1999028038A1 (en) * 1997-11-28 1999-06-10 Cortecs Diagnostics Limited Device and apparatus for conducting an assay
USD418587S (en) * 1997-10-01 2000-01-04 Kopf Henry B Six-way spider fitting for filter system
USD422685S (en) * 1997-10-01 2000-04-11 Kopf Henry B Four-way spider fitting for a filter system
US6193672B1 (en) 1993-05-11 2001-02-27 Mectra Labs, Inc. Lavage
US6217556B1 (en) 1998-03-19 2001-04-17 Allegiance Corporation Drainage catheter
US6273133B1 (en) 1999-10-15 2001-08-14 Baxter International Inc. Fluid flow rate switching device
US6347644B1 (en) 2000-03-03 2002-02-19 Chemical Engineering Corporation Bypass valve for water treatment system
WO2003039646A1 (en) * 2001-10-04 2003-05-15 Scimed Life Systems, Inc. Multiple port fluid control valves
US6626875B1 (en) * 2003-01-31 2003-09-30 Jeanne Arzonico Bush Personal feminine hygiene device
US6650929B1 (en) * 1999-10-05 2003-11-18 Nemoto Kyorindo Co., Ltd. Contrast media injection apparatus
US20040038422A1 (en) * 2000-09-06 2004-02-26 Percival David Alan Description
US6726647B1 (en) 1998-10-23 2004-04-27 Gambro Ab Method and device for measuring access flow
US20040250862A1 (en) * 2003-06-13 2004-12-16 Tomonori Maruta Ball valve
US20050124943A1 (en) * 2003-10-21 2005-06-09 Lin-Hsue Yang Medical bi-directional in-out switchable irrigation-drainage system for intracranial surgery
DE102004001861A1 (en) * 2004-01-13 2005-08-04 Cell Center Cologne Gmbh Apparatus and method for controlling a fluid of extracorporeal circulation systems
US20060005886A1 (en) * 2002-09-06 2006-01-12 Andrea Parrino Multiway wave
US20060178632A1 (en) * 2000-10-18 2006-08-10 Trombley Frederick W Iii Injector system with a manual control device
US7172572B2 (en) 2001-10-04 2007-02-06 Boston Scientific Scimed, Inc. Manifold system for a medical device
WO2007041512A2 (en) * 2005-10-03 2007-04-12 Baxa Corporation Apparatus, method and system for administration of iv liquid medication and iv flush solutions
US20070088216A1 (en) * 2005-10-19 2007-04-19 Up Management Gmbh & Co Med-Systems Kg Device and method for injectate duration measurement and temperature measurement
US20070142729A1 (en) * 2005-12-15 2007-06-21 Up Management Gmbh & Co Med-Systems Kg Blood vessel catheter and injection system for carrying out a blood pressure measurement of a patient
DE102004011461B4 (en) * 2004-03-09 2007-06-28 Ppa Technologies Ag Device for changing and / or docking functional modules
US20070179407A1 (en) * 2005-09-13 2007-08-02 Mark Gordon Closed blood sampling system with isolated pressure monitoring
US20070191760A1 (en) * 2005-11-28 2007-08-16 Nippon Sherwood Medical Industries, Ltd. Stopcock for Medical Treatment
US20070287953A1 (en) * 2004-09-03 2007-12-13 Elcam Medical Agricultural Cooperative Association, Ltd. Stopcock
US20080017260A1 (en) * 2006-07-20 2008-01-24 Seik Oh Multirate tubing flow restrictor
DE102007003690A1 (en) * 2007-01-25 2008-08-07 Up Management Gmbh & Co Med-Systems Kg Multi-function valve
CN100430633C (en) * 2007-05-25 2008-11-05 宁波三A集团电器有限公司 Four-way reversing valve
EP2042096A1 (en) * 2007-09-27 2009-04-01 F. Hoffmann-La Roche AG Distribution device for a sample of bodily fluids, fluid extraction and infusion system and operating method
US20090275829A1 (en) * 2008-04-30 2009-11-05 Mahesh Agarwal Contrast media injector kit
US20100114040A1 (en) * 2008-11-05 2010-05-06 Medrad, Inc. Fluid mixing control device for a multi-fluid delivery system
US7766883B2 (en) 2007-10-30 2010-08-03 Medrad, Inc. System and method for proportional mixing and continuous delivery of fluids
US20100249695A1 (en) * 2009-03-27 2010-09-30 Tyco Healthcare Group Lp Integral insufflation valve
US20110011474A1 (en) * 2009-07-20 2011-01-20 Duncan David R Multi-port stopcock valve and flow designating system
US20110071390A1 (en) * 2009-09-18 2011-03-24 Yunxing Liu Rotary medical manifold
EP2216070A3 (en) * 2009-02-10 2012-10-10 Tyco Healthcare Group LP Enteral feeding system
US20130060205A1 (en) * 2011-09-02 2013-03-07 Carefusion 303, Inc. Self-flushing valve
CN103285506A (en) * 2013-05-13 2013-09-11 常熟市精亮微医疗器械科技有限公司 Novel clamp type drain valve
US8602058B1 (en) 2009-08-12 2013-12-10 Gil Del Castillo Pushbutton stopcock assembly
US20140076454A1 (en) * 2012-09-17 2014-03-20 Hyclone Laboratories, Inc. Fluid manifold system with rotatable port assembly
US20150129061A1 (en) * 2013-11-14 2015-05-14 David R. Duncan Valve with positive and negative status indicator
EP2928375A4 (en) * 2012-12-04 2016-07-06 Magnolia Medical Technologies Inc Sterile bodily-fluid collection device and methods
US9433730B2 (en) 2013-03-14 2016-09-06 Bayer Healthcare Llc Fluid mixing control device for a multi-fluid delivery system
US20160296740A1 (en) * 2015-04-08 2016-10-13 Dale Medical Products, Inc. Non-luer compatible administration port
WO2017095994A1 (en) 2015-12-01 2017-06-08 Tesla Motors, Inc. Multi-port valve with multiple operation modes
US9700672B2 (en) 2011-09-21 2017-07-11 Bayer Healthcare Llc Continuous multi-fluid pump device, drive and actuating system and method
WO2017122213A1 (en) * 2016-01-17 2017-07-20 Ham-Let (Israel - Canada ) Ltd. Stream switching valve
WO2017125914A1 (en) * 2016-01-18 2017-07-27 Ham-Let (Israel - Canada ) Ltd. Stream switching valve with synchronizing mechanism
US9764126B2 (en) 2011-10-10 2017-09-19 Cyto365 Ab Valve for administration of a plurality of drug fluids
US9855001B2 (en) 2006-12-18 2018-01-02 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US9931466B2 (en) 2012-10-11 2018-04-03 Magnolia Medical Tehnologies, Inc. Systems and methods for delivering a fluid to a patient with reduced contamination
US9950084B2 (en) 2015-09-03 2018-04-24 Magnolia Medical Technologies, Inc. Apparatus and methods for maintaining sterility of a specimen container
US9956377B2 (en) 2002-09-20 2018-05-01 Angiodynamics, Inc. Method and apparatus for intra-aortic substance delivery to a branch vessel
US20180147370A1 (en) * 2016-11-30 2018-05-31 Belmont Instrument, Llc Slack-time heating system for blood and fluid warming
US10039483B2 (en) 2011-10-13 2018-08-07 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10123783B2 (en) 2014-03-03 2018-11-13 Magnolia Medical Technologies, Inc. Apparatus and methods for disinfection of a specimen container
US20180369564A1 (en) * 2017-06-21 2018-12-27 Kristin Rossodivito System and method for detecting air embolisms in lines for hemodynamic monitoring
US10238326B2 (en) 2016-08-04 2019-03-26 Elcam Medical Agricultural Cooperative Association Ltd. Flushable fluid handling assembly
US10279112B2 (en) 2012-09-24 2019-05-07 Angiodynamics, Inc. Power injector device and method of use
US10292633B2 (en) 2012-05-30 2019-05-21 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10357604B2 (en) 2016-03-08 2019-07-23 Cyto365 Ab Valve and a method for administering a plurality of drug fluids
US10433779B2 (en) 2012-05-30 2019-10-08 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10485936B2 (en) 2016-11-30 2019-11-26 Belmont Instrument, Llc Rapid infuser with advantageous flow path for blood and fluid warming
US10507319B2 (en) 2015-01-09 2019-12-17 Bayer Healthcare Llc Multiple fluid delivery system with multi-use disposable set and features thereof
US10507292B2 (en) 2016-11-30 2019-12-17 Belmont Instrument, Llc Rapid infuser with vacuum release valve
USD879913S1 (en) 2016-03-07 2020-03-31 Thomas K. Parker Valve
US10772548B2 (en) 2012-12-04 2020-09-15 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device and methods
WO2020215276A1 (en) * 2019-04-25 2020-10-29 Fresenius Medical Care Deutschland Gmbh Device for Controlling Fluid Flow and Set for Peritoneal Dialysis Comprising Said Device
US10881343B2 (en) 2012-08-01 2021-01-05 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
WO2021109021A1 (en) * 2019-12-03 2021-06-10 苏州润迈德医疗科技有限公司 Three-way valve for blood pressure collection device, preparation method and blood pressure collection device
WO2021109020A1 (en) * 2019-12-03 2021-06-10 苏州润迈德医疗科技有限公司 System for taking blood pressure, method for taking blood pressure in real time, and coronary artery analysis system
US11076787B2 (en) 2017-09-12 2021-08-03 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US20220016407A1 (en) * 2020-07-20 2022-01-20 Becton, Dickinson And Company Vascular access instrument and related devices and methods
US11234626B2 (en) 2015-06-12 2022-02-01 Magnolia Medical Technologies, Inc. Devices and methods for syringe-based fluid transfer for bodily-fluid sampling
US11306832B2 (en) 2017-06-22 2022-04-19 Elcam Medical Agricultural Cooperative Association Ltd Closed stopcock
US11311218B2 (en) 2012-11-30 2022-04-26 Magnolia Medical Technologies, Inc. Syringe-based fluid diversion mechanism for bodily fluid sampling
US11369739B2 (en) 2013-01-21 2022-06-28 Medline Industries, Lp Method to provide injection system parameters for injecting fluid into patient
US11419531B2 (en) 2017-12-07 2022-08-23 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11592115B2 (en) 2018-11-22 2023-02-28 Rosemount Aerospace Inc. Fluid valve
US11786155B2 (en) 2019-02-08 2023-10-17 Magnolia Medical Technologies, Inc. Devices and methods for bodily fluid collection and distribution
US11857321B2 (en) 2019-03-11 2024-01-02 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1209297B (en) * 1980-01-02 1989-07-16 Erba Strumentazione INJECTION PASSAGE CONTROL VALVE FOR A DIRECT INJECTOR IN GAS-CHROMATOGRAPH COLUMN AND INJECTION PROCEDURE USING SUCH VALVE.
US4522233A (en) * 1982-09-29 1985-06-11 Smith & Loveless, Inc. Multi-position plug valve
NL8402914A (en) * 1984-09-24 1986-04-16 Aerts Elektro Bv CIRCULATION DEVICE WITH VALVES.
EP0354915B1 (en) * 1987-03-19 1994-12-28 Fresenius AG Bagless continuous ambulatory peritoneal dialysis
JP6141264B2 (en) * 2011-05-27 2017-06-07 ライトラボ・イメージング・インコーポレーテッド Optical coherence tomography and pressure based system and method
EP3106200A1 (en) * 2015-06-19 2016-12-21 MedTrace A/S A system for safe radioisotope preparation and injection

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US717899A (en) * 1902-07-10 1903-01-06 Patrick Mcdonald Four-way cock.
US1854307A (en) * 1929-11-25 1932-04-19 Laval Separator Co De Valve
US2409435A (en) * 1943-09-13 1946-10-15 Bendix Aviat Corp Indicating mechanism
US2485842A (en) * 1946-07-27 1949-10-25 William A Pennington Differential anesthesia valve
US2600324A (en) * 1949-08-25 1952-06-10 Sanborn Company Fluid pressure measuring apparatus
US2960086A (en) * 1957-07-15 1960-11-15 Bosch & Speidel Apparatus for measuring the arterial blood pressure
US3157201A (en) * 1962-04-12 1964-11-17 Cardiosonics Medical Instr Com Fluid exchange valve
GB1116997A (en) * 1965-08-27 1968-06-12 Canadair Ltd Venous blood pressure recording system
US3526218A (en) * 1967-06-13 1970-09-01 Sherwood Medical Ind Inc Fluid pressure measuring device
US3526136A (en) * 1968-07-08 1970-09-01 Bruce J Caldwell Sr Multiple valve mechanism for testing instruments
US3610228A (en) * 1967-01-06 1971-10-05 Birtcher Corp Apparatus for measuring body fluid pressure

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US717899A (en) * 1902-07-10 1903-01-06 Patrick Mcdonald Four-way cock.
US1854307A (en) * 1929-11-25 1932-04-19 Laval Separator Co De Valve
US2409435A (en) * 1943-09-13 1946-10-15 Bendix Aviat Corp Indicating mechanism
US2485842A (en) * 1946-07-27 1949-10-25 William A Pennington Differential anesthesia valve
US2600324A (en) * 1949-08-25 1952-06-10 Sanborn Company Fluid pressure measuring apparatus
US2960086A (en) * 1957-07-15 1960-11-15 Bosch & Speidel Apparatus for measuring the arterial blood pressure
US3157201A (en) * 1962-04-12 1964-11-17 Cardiosonics Medical Instr Com Fluid exchange valve
GB1116997A (en) * 1965-08-27 1968-06-12 Canadair Ltd Venous blood pressure recording system
US3610228A (en) * 1967-01-06 1971-10-05 Birtcher Corp Apparatus for measuring body fluid pressure
US3526218A (en) * 1967-06-13 1970-09-01 Sherwood Medical Ind Inc Fluid pressure measuring device
US3526136A (en) * 1968-07-08 1970-09-01 Bruce J Caldwell Sr Multiple valve mechanism for testing instruments

Cited By (256)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957082A (en) * 1974-09-26 1976-05-18 Arbrook, Inc. Six-way stopcock
US3999538A (en) * 1975-05-22 1976-12-28 Buren Philpot V Jun Method of blood viscosity determination
US4083363A (en) * 1975-05-22 1978-04-11 Buren Philpot V Jun Blood viscosity determination device
US4082095A (en) * 1975-10-09 1978-04-04 Barry Mendelson Stomach pump
US4187849A (en) * 1978-07-28 1980-02-12 Stim Edward M Suction curettage device with valve control and support means for differing diameter tubes
US4217911A (en) * 1978-10-27 1980-08-19 The Kendall Company Cystometry system
US4301811A (en) * 1978-10-27 1981-11-24 The Kendall Company Cystometry system
US4447235A (en) * 1981-05-07 1984-05-08 John M. Clarke Thoracentesis device
US4397335A (en) * 1981-05-26 1983-08-09 Doblar Dennis D Rotary valve especially useful in a medical system including a flow-directed venous catheter
US4407660A (en) * 1981-09-08 1983-10-04 Baxter Travenol Laboratories, Inc. Plasmapheresis assembly and associated fluid manifold
EP0077151A1 (en) * 1981-10-13 1983-04-20 American Hospital Supply Corporation Manifold for monitoring hemodynamic pressure
US4479459A (en) * 1982-07-13 1984-10-30 International Telephone And Telegraph Corporation Sequencing blow down valve mechanism
US4621647A (en) * 1982-08-10 1986-11-11 Medex, Inc. Intracranial pressure regulating system
WO1984001805A1 (en) * 1982-11-01 1984-05-10 Allan M Parham Medical stopcock valve assembly
US4604093A (en) * 1984-06-12 1986-08-05 I-Flow Corporation Apparatus and method for administering multiple fluid infusions
US4608996A (en) * 1984-08-10 1986-09-02 Cordis Corporation External blood parameter diagnostic system
US4734091A (en) * 1985-02-11 1988-03-29 Atlantic Optical Systems, Inc. Filtered manifold apparatus and method for ophthalmic irrigation
US4702269A (en) * 1985-03-12 1987-10-27 Donaldson Company, Inc. By-pass valve
EP0213620A2 (en) 1985-08-30 1987-03-11 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Stopcock device
EP0213620A3 (en) * 1985-08-30 1988-06-01 Terumo Kabushiki Kaisha Trading As Terumo Corporation Pressure transducer apparatus
US4648868A (en) * 1985-09-30 1987-03-10 American Hospital Supply Corporation Apparatus for controlling flow and pressure measurement
US4920970A (en) * 1986-09-12 1990-05-01 Philip Wyatt Method and apparatus for arterial and venous blood sampling
GB2194890A (en) * 1986-09-12 1988-03-23 Boc Group Plc Cannula assembly
WO1988001846A1 (en) * 1986-09-12 1988-03-24 Philip Wyatt Method and apparatus for arterial and venous blood sampling
US4763648A (en) * 1986-09-12 1988-08-16 Migada, Inc. Method and apparatus for arterial and venous blood sampling
US4981140A (en) * 1986-09-12 1991-01-01 Philip Wyatt Method and apparatus for arterial and venous blood sampling
US4900322A (en) * 1986-09-22 1990-02-13 Adams James D Blood component pooling valve and kit
US4738265A (en) * 1987-03-30 1988-04-19 Baxter Travenol Laboratories, Inc. Dual stop cock
US4807666A (en) * 1987-08-26 1989-02-28 North American Instruments Corp. Stopcock valve for high pressure applications
US4949723A (en) * 1987-10-15 1990-08-21 Utah Medical Products, Inc. Medical pressure multiplexing system
US5097840A (en) * 1987-10-15 1992-03-24 Utah Medical Products, Inc. Medical pressure multiplexing system
US4904245A (en) * 1988-12-07 1990-02-27 Allen S. Chen Surgical valve assembly for urinary bladder irrigation and drainage
US4961883A (en) * 1989-03-14 1990-10-09 Gerald Jacino Glass break repair apparatus valve and method
US5207641A (en) * 1989-05-15 1993-05-04 Bird Medical International Inc. Medical rotary valve having aspiration, insufflation and an intermediate flushing positions
US4967797A (en) * 1989-08-16 1990-11-06 Manska Wayne E Tap valve
US5135026A (en) * 1989-08-16 1992-08-04 Manska Wayne E Medical valve having fluid flow indicia
US5084031A (en) * 1989-09-12 1992-01-28 Research Medical, Inc. Cardioplegia three-way double stopcock
US5256160A (en) * 1989-11-06 1993-10-26 Mectra Labs, Inc. Medical device valving mechanism
US5306237A (en) * 1989-11-06 1994-04-26 Mectra Labs, Inc. Disposable lavage
US5374244A (en) * 1989-11-06 1994-12-20 Mectra Labs, Inc. Disposable lavage
US5505210A (en) * 1989-11-06 1996-04-09 Mectra Labs, Inc. Lavage with tissue cutting cannula
US5203769A (en) * 1989-11-06 1993-04-20 Mectra Labs, Inc. Medical device valving mechanism
US5019054A (en) * 1989-11-06 1991-05-28 Mectra Labs, Inc. Medical device valving mechanism
US5797907A (en) * 1989-11-06 1998-08-25 Mectra Labs, Inc. Electrocautery cutter
US5409013A (en) * 1989-11-06 1995-04-25 Mectra Labs, Inc. Tissue removal assembly
US5338292A (en) * 1989-11-06 1994-08-16 Mectra Labs, Inc. Disposable lavage with instrument shield
WO1991006331A1 (en) * 1989-11-06 1991-05-16 Mectra Labs, Inc. Medical device valving mechanism
US5104387A (en) * 1990-05-25 1992-04-14 St. Jude Medical, Inc. Bi-planar fluid control valve
WO1991018632A1 (en) * 1990-05-25 1991-12-12 St. Jude Medical, Inc. Fluid control valve
US5250065A (en) * 1990-09-11 1993-10-05 Mectra Labs, Inc. Disposable lavage tip assembly
US5340364A (en) * 1991-01-11 1994-08-23 Dideco S.R.L. Device for selectively drawing samples of blood from two sections of a line and for injecting blood into said line
US5466228A (en) * 1991-01-25 1995-11-14 California State University, Fresno Foundation Fluid control apparatus
US5288290A (en) * 1991-09-25 1994-02-22 Alcon Surgical, Inc. Multi-ported valve assembly
US5144972A (en) * 1991-10-02 1992-09-08 Dryden Gale E Stopcock with a protective assembly
US5300046A (en) * 1992-03-30 1994-04-05 Symbiosis Corporation Thoracentesis sheath catheter assembly
US5403290A (en) * 1992-04-20 1995-04-04 Noble; Lisa W. Gastric adapter/stopcock
US5241990A (en) * 1992-07-10 1993-09-07 Inlet Medical, Inc. Irrigation/aspiration valve and probe for laparoscopy
US5364341A (en) * 1992-07-10 1994-11-15 Inlet Medical Irrigation/aspiration valve and probe for laparoscopy
US5334182A (en) * 1992-09-02 1994-08-02 Perry Creek Group Corporation Pulmonary artery catheter monitoring bridge
WO1994005350A1 (en) * 1992-09-02 1994-03-17 Perry Creek Group Corporation Pulmonary artery catheter monitoring bridge
US5265840A (en) * 1992-10-09 1993-11-30 Symbiosis Corporation Pinch valve
US6193672B1 (en) 1993-05-11 2001-02-27 Mectra Labs, Inc. Lavage
US5372581A (en) * 1993-07-21 1994-12-13 Minneapolis Children's Services Corporation Method and apparatus for placental blood collection
US5443453A (en) * 1994-04-21 1995-08-22 Sherwood Medical Company Stop-cock valve
US5578016A (en) * 1994-07-29 1996-11-26 Elcam Plastic Kibbutz Bar-Am Stopcock
US5527332A (en) * 1994-11-02 1996-06-18 Mectra Labs, Inc. Tissue cutter for surgery
US5655541A (en) * 1994-12-29 1997-08-12 Vattuone; John R. Fine needle cytology aspiration device
USD379492S (en) * 1995-06-05 1997-05-27 Sherwood Medical Company Stop-cock valve
US5743883A (en) * 1995-06-07 1998-04-28 Visconti; Peter L. Thoracentesis catheter instruments having self-sealing valves
US5658248A (en) * 1995-08-04 1997-08-19 Localmed, Inc. Double-blind infusion device and method
US5865812A (en) * 1995-09-27 1999-02-02 United States Surgical Corporation Fluid flow control apparatus for surgical cannulae
EP0893094A1 (en) * 1997-07-23 1999-01-27 pvb medizintechnik gmbh & co. kg Blood sampling device
EP0895751A1 (en) * 1997-07-23 1999-02-10 pvb medizintechnik gmbh & co. kg Blood sampling device
USD418587S (en) * 1997-10-01 2000-01-04 Kopf Henry B Six-way spider fitting for filter system
USD422685S (en) * 1997-10-01 2000-04-11 Kopf Henry B Four-way spider fitting for a filter system
US6300142B1 (en) 1997-11-28 2001-10-09 Provalis Diagnostics Ltd Device and apparatus for conducting an assay
WO1999028038A1 (en) * 1997-11-28 1999-06-10 Cortecs Diagnostics Limited Device and apparatus for conducting an assay
US6217556B1 (en) 1998-03-19 2001-04-17 Allegiance Corporation Drainage catheter
US6726647B1 (en) 1998-10-23 2004-04-27 Gambro Ab Method and device for measuring access flow
US7896831B2 (en) 1998-10-23 2011-03-01 Gambro Lundia Ab Method and apparatus for calculating fluid flow rate
US20090314063A1 (en) * 1998-10-23 2009-12-24 Gambro Lundia Ab Method and apparatus for detecting access recirculation
US7500958B2 (en) 1998-10-23 2009-03-10 Gambro Lundia Ab Switch valve for an extracorporeal blood circuit and circuit including such a switch valve
US7955291B2 (en) 1998-10-23 2011-06-07 Gambro Lundia Ab Method and apparatus for detecting access recirculation
US20040168969A1 (en) * 1998-10-23 2004-09-02 Gambro Lundia Ab Switch valve for an extracorporeal blood circuit and circuit including such a switch valve
US6650929B1 (en) * 1999-10-05 2003-11-18 Nemoto Kyorindo Co., Ltd. Contrast media injection apparatus
US6273133B1 (en) 1999-10-15 2001-08-14 Baxter International Inc. Fluid flow rate switching device
US6347644B1 (en) 2000-03-03 2002-02-19 Chemical Engineering Corporation Bypass valve for water treatment system
US20040038422A1 (en) * 2000-09-06 2004-02-26 Percival David Alan Description
US7481977B2 (en) 2000-09-06 2009-01-27 Bio-Rad Laboratories, Inc. Assay device
US9764081B2 (en) 2000-10-18 2017-09-19 Bayer Healthcare Llc Fluid path containing a pressure isolation valve
US9833559B2 (en) 2000-10-18 2017-12-05 Bayer Healthcare Llc Pressure isolation mechanisms, method of use thereof and fluid delivery systems including pressure isolation mechanisms
US20060178632A1 (en) * 2000-10-18 2006-08-10 Trombley Frederick W Iii Injector system with a manual control device
US8747358B2 (en) 2000-10-18 2014-06-10 Bayer Medical Care Inc. Injector system with a manual control device
WO2003039646A1 (en) * 2001-10-04 2003-05-15 Scimed Life Systems, Inc. Multiple port fluid control valves
US7172572B2 (en) 2001-10-04 2007-02-06 Boston Scientific Scimed, Inc. Manifold system for a medical device
US20060005886A1 (en) * 2002-09-06 2006-01-12 Andrea Parrino Multiway wave
US7469716B2 (en) 2002-09-06 2008-12-30 Gambro Lundia Ab Multiway valve
US9956377B2 (en) 2002-09-20 2018-05-01 Angiodynamics, Inc. Method and apparatus for intra-aortic substance delivery to a branch vessel
US6626875B1 (en) * 2003-01-31 2003-09-30 Jeanne Arzonico Bush Personal feminine hygiene device
US7089960B2 (en) * 2003-06-13 2006-08-15 Tlv Co. Ltd. Ball valve
US20040250862A1 (en) * 2003-06-13 2004-12-16 Tomonori Maruta Ball valve
US20050124943A1 (en) * 2003-10-21 2005-06-09 Lin-Hsue Yang Medical bi-directional in-out switchable irrigation-drainage system for intracranial surgery
DE102004001861A1 (en) * 2004-01-13 2005-08-04 Cell Center Cologne Gmbh Apparatus and method for controlling a fluid of extracorporeal circulation systems
US7507217B2 (en) 2004-03-09 2009-03-24 Ppa Technologies Ag Device for exchanging and/or docking functional modules
DE102004011461B4 (en) * 2004-03-09 2007-06-28 Ppa Technologies Ag Device for changing and / or docking functional modules
US20070208292A1 (en) * 2004-03-09 2007-09-06 Markus Ferrari Device For Exchanging And/Or Docking Functional Modules
US8534321B2 (en) 2004-09-03 2013-09-17 Elcam Medical Agricultural Cooperative Association Ltd. Stopcock
JP2008511371A (en) * 2004-09-03 2008-04-17 エルカム メディカル アグリカルチュラル コーポレイティブ アソシエイション リミティド Stopcock
US10982781B2 (en) 2004-09-03 2021-04-20 Elcam Medical Agricultural Cooperative Association Ltd. Stopcock
US7984730B2 (en) * 2004-09-03 2011-07-26 Elcam Medical Agricultural Cooperative Association Stopcock
US20070287953A1 (en) * 2004-09-03 2007-12-13 Elcam Medical Agricultural Cooperative Association, Ltd. Stopcock
US10279161B2 (en) 2004-09-03 2019-05-07 Elcam Medical Agricultural Cooperative Association Ltd. Stopcock
US9016316B2 (en) 2004-09-03 2015-04-28 Elcam Medical Agricultural Cooperative Association Ltd. Stopcock
US20070179407A1 (en) * 2005-09-13 2007-08-02 Mark Gordon Closed blood sampling system with isolated pressure monitoring
US7744573B2 (en) 2005-09-13 2010-06-29 Edwards Lifesciences Corporation Closed blood sampling system with isolated pressure monitoring
WO2007041512A2 (en) * 2005-10-03 2007-04-12 Baxa Corporation Apparatus, method and system for administration of iv liquid medication and iv flush solutions
US20070088282A1 (en) * 2005-10-03 2007-04-19 Joseph Ranalletta Apparatus, method and system for administration of IV liquid medication and IV flush solutions
WO2007041512A3 (en) * 2005-10-03 2008-03-13 Baxa Corp Apparatus, method and system for administration of iv liquid medication and iv flush solutions
US7892210B2 (en) 2005-10-03 2011-02-22 Baxa Corporation Apparatus, method and system for administration of IV liquid medication and IV flush solutions
EP1776921A2 (en) 2005-10-19 2007-04-25 UP Management GmbH & Co Med-Systems KG Device and method for injectate duration measurement and temperature measurement
EP1776921A3 (en) * 2005-10-19 2007-12-12 UP Management GmbH & Co Med-Systems KG Device and method for injectate duration measurement and temperature measurement
US20070088216A1 (en) * 2005-10-19 2007-04-19 Up Management Gmbh & Co Med-Systems Kg Device and method for injectate duration measurement and temperature measurement
US20070191760A1 (en) * 2005-11-28 2007-08-16 Nippon Sherwood Medical Industries, Ltd. Stopcock for Medical Treatment
US20070142729A1 (en) * 2005-12-15 2007-06-21 Up Management Gmbh & Co Med-Systems Kg Blood vessel catheter and injection system for carrying out a blood pressure measurement of a patient
US8858451B2 (en) 2005-12-15 2014-10-14 Edwards Lifesciences Iprm Ag Blood vessel catheter and injection system for carrying out a blood pressure measurement of a patient
EP1800598A1 (en) * 2005-12-15 2007-06-27 UP Management GmbH & Co Med-Systems KG Blood vessel catheter and injection system for carrying out a blood pressure measurement of a patient
US20100154909A1 (en) * 2006-07-20 2010-06-24 Baxter International Inc. Multirate tubing flow control valve
US20080017260A1 (en) * 2006-07-20 2008-01-24 Seik Oh Multirate tubing flow restrictor
US7802589B2 (en) 2006-07-20 2010-09-28 Baxter International Inc. Multirate tubing flow control valve
US7690396B2 (en) 2006-07-20 2010-04-06 Baxter International Inc. Multirate tubing flow restrictor
US10028687B2 (en) 2006-12-18 2018-07-24 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US10028688B2 (en) 2006-12-18 2018-07-24 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US10299713B2 (en) 2006-12-18 2019-05-28 Magnolia Medical Technolgies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US10045724B2 (en) 2006-12-18 2018-08-14 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US10028689B2 (en) 2006-12-18 2018-07-24 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US9872645B2 (en) 2006-12-18 2018-01-23 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US9861306B2 (en) 2006-12-18 2018-01-09 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US9855002B2 (en) 2006-12-18 2018-01-02 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US10052053B2 (en) 2006-12-18 2018-08-21 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
US9855001B2 (en) 2006-12-18 2018-01-02 Magnolia Medical Technologies, Inc. Systems and methods for parenterally procuring bodily-fluid samples with reduced contamination
DE102007003690B4 (en) * 2007-01-25 2009-05-14 Iprm Intellectual Property Rights Management Ag Multi-function valve
DE102007003690A1 (en) * 2007-01-25 2008-08-07 Up Management Gmbh & Co Med-Systems Kg Multi-function valve
CN100430633C (en) * 2007-05-25 2008-11-05 宁波三A集团电器有限公司 Four-way reversing valve
US8444594B2 (en) * 2007-09-27 2013-05-21 Roche Diagnostics Operations, Inc. System for removal and infusion of body fluid, and method for its operation
EP2042096A1 (en) * 2007-09-27 2009-04-01 F. Hoffmann-La Roche AG Distribution device for a sample of bodily fluids, fluid extraction and infusion system and operating method
WO2009043555A1 (en) * 2007-09-27 2009-04-09 Roche Diagnostics Gmbh System for removal and infusion of body fluid, and method for its operation
US20100268118A1 (en) * 2007-09-27 2010-10-21 Gerd Schweiger System for removal and infusion of body fluid, and method for its operation
US20100298699A1 (en) * 2007-10-30 2010-11-25 Medrad Inc. System and Method for Proportional Mixing and Continuous Delivery of Fluids
US8162903B2 (en) 2007-10-30 2012-04-24 Medrad, Inc. System and method for proportional mixing and continuous delivery of fluids
USRE45717E1 (en) 2007-10-30 2015-10-06 Bayer Medical Care Inc. System and method for proportional mixing and continuous delivery of fluids
US7766883B2 (en) 2007-10-30 2010-08-03 Medrad, Inc. System and method for proportional mixing and continuous delivery of fluids
US20090275829A1 (en) * 2008-04-30 2009-11-05 Mahesh Agarwal Contrast media injector kit
US9861742B2 (en) 2008-11-05 2018-01-09 Bayer Healthcare Llc Fluid mixing control device for a multi-fluid delivery system
US9011377B2 (en) 2008-11-05 2015-04-21 Bayer Medical Care Inc. Fluid mixing control device for a multi-fluid delivery system
US20100114040A1 (en) * 2008-11-05 2010-05-06 Medrad, Inc. Fluid mixing control device for a multi-fluid delivery system
US10441716B2 (en) 2008-11-05 2019-10-15 Bayer Healthcare Llc Fluid mixing control device for a multi-fluid delivery system
EP2216070A3 (en) * 2009-02-10 2012-10-10 Tyco Healthcare Group LP Enteral feeding system
US20100249695A1 (en) * 2009-03-27 2010-09-30 Tyco Healthcare Group Lp Integral insufflation valve
US8070730B2 (en) 2009-03-27 2011-12-06 Tyco Healthcare Group Lp Integral insufflation valve
AU2010274995B2 (en) * 2009-07-20 2016-02-04 David R. Duncan Multi-port stopcock valve and flow designating system
US8584701B2 (en) * 2009-07-20 2013-11-19 David R. Duncan Multi-port stopcock valve and flow designating system
US20140076431A1 (en) * 2009-07-20 2014-03-20 David R. Duncan Multi-port stopcock valve and flow designating system
US20110011474A1 (en) * 2009-07-20 2011-01-20 Duncan David R Multi-port stopcock valve and flow designating system
US9212762B2 (en) * 2009-07-20 2015-12-15 David R. Duncan Multi-port stopcock valve and flow designating system
US8602058B1 (en) 2009-08-12 2013-12-10 Gil Del Castillo Pushbutton stopcock assembly
CN102548606A (en) * 2009-09-18 2012-07-04 美国联合医疗器械创新有限公司 Rotary medical manifold
US8478385B2 (en) 2009-09-18 2013-07-02 United Medical Innovations, Inc. Rotary medical manifold
WO2011032514A1 (en) * 2009-09-18 2011-03-24 United Medical Innovations, Inc. Rotary medical manifold
US20110071390A1 (en) * 2009-09-18 2011-03-24 Yunxing Liu Rotary medical manifold
CN102548606B (en) * 2009-09-18 2014-02-26 美国联合医疗器械创新有限公司 Rotary medical manifold
US20160279327A1 (en) * 2011-09-02 2016-09-29 Carefusion 303, Inc. Port-flushing control valve
US9375561B2 (en) * 2011-09-02 2016-06-28 Carefusion 303, Inc. Self-flushing valve
US20130060205A1 (en) * 2011-09-02 2013-03-07 Carefusion 303, Inc. Self-flushing valve
US11426516B2 (en) 2011-09-02 2022-08-30 Carefusion 303, Inc. Port-flushing control valve
US11896802B2 (en) 2011-09-02 2024-02-13 Carefusion 303, Inc. Port-flushing control valve
US10561786B2 (en) * 2011-09-02 2020-02-18 Carefusion 303, Inc. Port-flushing control valve
US9700672B2 (en) 2011-09-21 2017-07-11 Bayer Healthcare Llc Continuous multi-fluid pump device, drive and actuating system and method
US9764126B2 (en) 2011-10-10 2017-09-19 Cyto365 Ab Valve for administration of a plurality of drug fluids
US10265007B2 (en) 2011-10-13 2019-04-23 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10039483B2 (en) 2011-10-13 2018-08-07 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10433779B2 (en) 2012-05-30 2019-10-08 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US11395612B2 (en) 2012-05-30 2022-07-26 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10292633B2 (en) 2012-05-30 2019-05-21 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US11819329B2 (en) 2012-05-30 2023-11-21 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10912506B2 (en) 2012-05-30 2021-02-09 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10736554B2 (en) 2012-05-30 2020-08-11 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US11395611B2 (en) 2012-05-30 2022-07-26 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US10881343B2 (en) 2012-08-01 2021-01-05 Magnolia Medical Technologies, Inc. Fluid diversion mechanism for bodily-fluid sampling
US20140076454A1 (en) * 2012-09-17 2014-03-20 Hyclone Laboratories, Inc. Fluid manifold system with rotatable port assembly
US9481477B2 (en) * 2012-09-17 2016-11-01 Life Technologies Corporation Fluid manifold system with rotatable port assembly
US10329038B2 (en) 2012-09-17 2019-06-25 Life Technologies Corporation Fluid dispensing system with rotatable port assembly
US11242164B2 (en) * 2012-09-17 2022-02-08 Life Technologies Corporation Fluid dispensing system with rotatable port assembly
US10899480B2 (en) 2012-09-17 2021-01-26 Life Technologies Corporation Fluid dispensing system with rotatable port assembly
US10279112B2 (en) 2012-09-24 2019-05-07 Angiodynamics, Inc. Power injector device and method of use
US10596315B2 (en) 2012-10-11 2020-03-24 Magnolia Medical Technologies, Inc. Systems and methods for delivering a fluid to a patient with reduced contamination
US10220139B2 (en) 2012-10-11 2019-03-05 Magnolia Medical Technologies, Inc. Systems and methods for delivering a fluid to a patient with reduced contamination
US9931466B2 (en) 2012-10-11 2018-04-03 Magnolia Medical Tehnologies, Inc. Systems and methods for delivering a fluid to a patient with reduced contamination
US11890452B2 (en) 2012-10-11 2024-02-06 Magnolia Medical Technologies, Inc. Systems and methods for delivering a fluid to a patient with reduced contamination
US11607159B2 (en) 2012-11-30 2023-03-21 Magnolia Medical Technologies, Inc. Bodily-fluid transfer system for bodily fluid sampling
US11311218B2 (en) 2012-11-30 2022-04-26 Magnolia Medical Technologies, Inc. Syringe-based fluid diversion mechanism for bodily fluid sampling
US11317838B2 (en) 2012-11-30 2022-05-03 Magnolia Medical Technologies, Inc. Syringe-based fluid diversion mechanism for bodily fluid sampling
US11589786B2 (en) 2012-11-30 2023-02-28 Magnolia Medical Technologies, Inc. Syringe-based fluid diversion mechanism for bodily fluid sampling
US11660030B2 (en) 2012-11-30 2023-05-30 Magnolia Medical Technologies, Inc. Syringe-based fluid diversion mechanism for bodily fluid sampling
EP2928375A4 (en) * 2012-12-04 2016-07-06 Magnolia Medical Technologies Inc Sterile bodily-fluid collection device and methods
US10772548B2 (en) 2012-12-04 2020-09-15 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device and methods
US11259727B2 (en) 2012-12-04 2022-03-01 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device and methods
US10251590B2 (en) 2012-12-04 2019-04-09 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device and methods
US11737693B2 (en) 2012-12-04 2023-08-29 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device and methods
EP3305196A1 (en) * 2012-12-04 2018-04-11 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection devicesterile
EP3626172A1 (en) * 2012-12-04 2020-03-25 Magnolia Medical Technologies, Inc. Sterile bodily-fluid collection device
US11369739B2 (en) 2013-01-21 2022-06-28 Medline Industries, Lp Method to provide injection system parameters for injecting fluid into patient
US9433730B2 (en) 2013-03-14 2016-09-06 Bayer Healthcare Llc Fluid mixing control device for a multi-fluid delivery system
CN103285506A (en) * 2013-05-13 2013-09-11 常熟市精亮微医疗器械科技有限公司 Novel clamp type drain valve
US20150129061A1 (en) * 2013-11-14 2015-05-14 David R. Duncan Valve with positive and negative status indicator
US9500287B2 (en) * 2013-11-14 2016-11-22 David R. Duncan Valve with positive and negative status indicator
US10123783B2 (en) 2014-03-03 2018-11-13 Magnolia Medical Technologies, Inc. Apparatus and methods for disinfection of a specimen container
US11589843B2 (en) 2014-03-03 2023-02-28 Magnolia Medical Technologies, Inc. Apparatus and methods for disinfection of a specimen container
US10507319B2 (en) 2015-01-09 2019-12-17 Bayer Healthcare Llc Multiple fluid delivery system with multi-use disposable set and features thereof
US11491318B2 (en) 2015-01-09 2022-11-08 Bayer Healthcare Llc Multiple fluid delivery system with multi-use disposable set and features thereof
US10953215B2 (en) * 2015-04-08 2021-03-23 Dale Medical Products, Inc. Non-luer compatible administration port
US20160296740A1 (en) * 2015-04-08 2016-10-13 Dale Medical Products, Inc. Non-luer compatible administration port
US11234626B2 (en) 2015-06-12 2022-02-01 Magnolia Medical Technologies, Inc. Devices and methods for syringe-based fluid transfer for bodily-fluid sampling
US9950084B2 (en) 2015-09-03 2018-04-24 Magnolia Medical Technologies, Inc. Apparatus and methods for maintaining sterility of a specimen container
US10624977B2 (en) 2015-09-03 2020-04-21 Magnolia Medical Technologies, Inc. Apparatus and methods for maintaining sterility of a specimen container
WO2017095994A1 (en) 2015-12-01 2017-06-08 Tesla Motors, Inc. Multi-port valve with multiple operation modes
EP3384187A4 (en) * 2015-12-01 2019-07-24 Tesla, Inc. Multi-port valve with multiple operation modes
WO2017122213A1 (en) * 2016-01-17 2017-07-20 Ham-Let (Israel - Canada ) Ltd. Stream switching valve
WO2017125914A1 (en) * 2016-01-18 2017-07-27 Ham-Let (Israel - Canada ) Ltd. Stream switching valve with synchronizing mechanism
US10851901B2 (en) 2016-01-18 2020-12-01 Ham-Let (Israel—Canada) Ltd. Stream switching valve with synchronizing mechanism
EP3405709A4 (en) * 2016-01-18 2019-08-14 Ham-Let (Israel-Canada) Ltd. Stream switching valve with synchronizing mechanism
USD879913S1 (en) 2016-03-07 2020-03-31 Thomas K. Parker Valve
US10960135B2 (en) 2016-03-08 2021-03-30 Cyto365 Ab Valve and a method for administering a plurality of drug fluids
US10357604B2 (en) 2016-03-08 2019-07-23 Cyto365 Ab Valve and a method for administering a plurality of drug fluids
US10238326B2 (en) 2016-08-04 2019-03-26 Elcam Medical Agricultural Cooperative Association Ltd. Flushable fluid handling assembly
US10137257B2 (en) * 2016-11-30 2018-11-27 Belmont Instrument, Llc Slack-time heating system for blood and fluid warming
US10507292B2 (en) 2016-11-30 2019-12-17 Belmont Instrument, Llc Rapid infuser with vacuum release valve
US20180147370A1 (en) * 2016-11-30 2018-05-31 Belmont Instrument, Llc Slack-time heating system for blood and fluid warming
US11872382B2 (en) 2016-11-30 2024-01-16 Belmont Instrument, Llc Rapid infuser with advantageous flow path for blood and fluid warming, and associated components, systems, and methods
US10485936B2 (en) 2016-11-30 2019-11-26 Belmont Instrument, Llc Rapid infuser with advantageous flow path for blood and fluid warming
US20180369564A1 (en) * 2017-06-21 2018-12-27 Kristin Rossodivito System and method for detecting air embolisms in lines for hemodynamic monitoring
US11517734B2 (en) * 2017-06-21 2022-12-06 Kristin Rossodivito System and method for detecting air embolisms in lines for hemodynamic monitoring
US11306832B2 (en) 2017-06-22 2022-04-19 Elcam Medical Agricultural Cooperative Association Ltd Closed stopcock
US11653863B2 (en) 2017-09-12 2023-05-23 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11076787B2 (en) 2017-09-12 2021-08-03 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11903709B2 (en) 2017-09-12 2024-02-20 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11903710B2 (en) 2017-09-12 2024-02-20 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11529081B2 (en) 2017-09-12 2022-12-20 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11419531B2 (en) 2017-12-07 2022-08-23 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
US11592115B2 (en) 2018-11-22 2023-02-28 Rosemount Aerospace Inc. Fluid valve
US11786155B2 (en) 2019-02-08 2023-10-17 Magnolia Medical Technologies, Inc. Devices and methods for bodily fluid collection and distribution
US11857321B2 (en) 2019-03-11 2024-01-02 Magnolia Medical Technologies, Inc. Fluid control devices and methods of using the same
WO2020215276A1 (en) * 2019-04-25 2020-10-29 Fresenius Medical Care Deutschland Gmbh Device for Controlling Fluid Flow and Set for Peritoneal Dialysis Comprising Said Device
WO2021109020A1 (en) * 2019-12-03 2021-06-10 苏州润迈德医疗科技有限公司 System for taking blood pressure, method for taking blood pressure in real time, and coronary artery analysis system
WO2021109021A1 (en) * 2019-12-03 2021-06-10 苏州润迈德医疗科技有限公司 Three-way valve for blood pressure collection device, preparation method and blood pressure collection device
US11793984B2 (en) * 2020-07-20 2023-10-24 Becton, Dickinson And Company Vascular access instrument and related devices and methods
US20220016407A1 (en) * 2020-07-20 2022-01-20 Becton, Dickinson And Company Vascular access instrument and related devices and methods

Also Published As

Publication number Publication date
DE2400983A1 (en) 1974-07-18
JPS49109942A (en) 1974-10-19
FR2326121A7 (en) 1977-04-22
GB1462391A (en) 1977-01-26
CA995560A (en) 1976-08-24

Similar Documents

Publication Publication Date Title
US3834372A (en) Disposable manifold with atmospheric vent
EP1924202B1 (en) Closed blood sampling system with isolated pressure monitoring
US4819653A (en) Multi-function fluid communication control system
US4397335A (en) Rotary valve especially useful in a medical system including a flow-directed venous catheter
US5577499A (en) Blood analyzer
US4638811A (en) Vascular interface
US5993395A (en) Pressure transducer apparatus with disposable dome
US5935083A (en) Device for body fluid pressure measurement
US4508103A (en) Pressure monitoring interconnect system
US5048537A (en) Method and apparatus for sampling blood
CA1225849A (en) Portable unit for withdrawing blood and other fluids
US4263808A (en) Noninvasive pressure monitor
US5218965A (en) Apparatus for carrying a sensor in a connector for a catheter adapter
US5104387A (en) Bi-planar fluid control valve
US4966161A (en) Apparatus for continuously measuring intracompartmental pressure within a body cavity
US4936315A (en) Methods and apparatus for obtaining arterial blood samples
CA2024977C (en) Apparatus for a catheter sensor support and method for using the support
US4621646A (en) Blood flow measuring method
US5454374A (en) Pressure-measuring method and needle system for hemodialysis
CA2046404C (en) Apparatus for rezeroing an in vivo pressure sensor and method for rezeroing
US4384470A (en) Method and apparatus for testing blood vessel catheters
CA2682474A1 (en) Multifunction valve
US3807389A (en) Medical instrument for measuring fluid pressure
US4949723A (en) Medical pressure multiplexing system
US4955391A (en) Fluid monitoring apparatus