US3900022A - Endoscope with uninterrupted flow purging system - Google Patents
Endoscope with uninterrupted flow purging system Download PDFInfo
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- US3900022A US3900022A US42348973A US3900022A US 3900022 A US3900022 A US 3900022A US 42348973 A US42348973 A US 42348973A US 3900022 A US3900022 A US 3900022A
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- fluid
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- treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/77—Suction-irrigation systems
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7303—Control of both inflow and outflow of tank
Definitions
- ABSTRACT An endoscope characterized by two separate yet generally coextensive fluid conduits disposed along the length thereof, thereby making feasible the establishment of a continuous, uninterrupted tissue-irrigating flow of fluid to and from a zone of examination and treatment into which the lead portion of the endoscope is introduced, so as to purge the zone to enhance the viewing therewithin and to facilitate treatment including surgical procedures carried out in the zone.
- Sensing means, pressure indicator means, and regulator means are provided for monitoring and controlling the fluid flow rate and for setting and limiting fluid pressure in the system.
- the present invention relates to an endoscope or similar instrument finding utility in the examination of the interior of a hollow organ, as, for example, the urethra, and the bladder. More particularly, the invention is directed to a resectoscope with a markedly improved fluid transmitting system characterized in that it includes two separate yet generally coextensive fluid conduits disposed along the length of the device, one conduit constituting a fluid input channel or passage and the other a fluid return or exhaust passage, both in communication with an internal body cavity or medical treatment zone.
- the fluid conduit system makes it feasible to establish a continuous, uninterrupted tissue-irrigating flow of fluid to and from a zone of examination and treatment into which the lead portion of the endoscope is introduced.
- the technique which is made possible through the use of the improved apparatus of the invention enables one to purge the zone of treatment to enhance the viewing therewithin and to facilitate surgical procedures which may be required.
- the apparatus includes fluid pressure sensing and indicator means together with pressure regulating means and guage means for monitoring and controlling the fluid flow rate and for adjusting and limiting the fluid pressure in the system.
- FIG. I is a side elevational view of a resectoscope incorporating the present invention, portions of the instrument being cut away to show the components contained within the outer sheath;
- FIG. 2 is a cross-sectional view taken substantially on the line 2-2 of FIG. 1 and showing the arrangement of the fluid input and the fluid exhaust passages extending through the sheath of the resectoscope;
- FIG. 3 is a cross-sectional view similar to FIG. 2 but showing a second arrangement of the fluid input and exhaust passages;
- FIG. 4 is a cross-sectional view. similar to FIG. 3 but showing still another arrangement of the fluid input and fluid exhaust passages;
- FIG. 5 is a schematic representation of the fluid pumping and control system used in conjunction with the improved resectoscope of the invention.
- the aims and objects of the invention are accomplished by providing, in an endoscope, a pair of fluid conduits communicating between a fluid supply reservoir and an internal body zone of medical treatment to establish a continuous, uninterrupted purging flow of fluid into and from the zone of treatment.
- auxiliary equipment to enhance the procedure and to serve as controls and protective devices ensuring proper op eration under all conditions. Included in this auxiliary equipment are valves for regulating the fluid flow rate, pressure control elements for setting the required pressure in the fluid system, gauge means for monitoring the pressure in the system, and automatically-operating limit controls to ensure that no pressures above those desired are established in the system, particularly in the critical zone of treatment. All of the above structures are in addition to the conventional components of an endoscope, including the viewing or optical system, the illuminating system, and surgical elements such as a wire loop and the mechanical means for manipulating the loop.
- the endoscope of the invention will be described with specific reference to a cystoscope. Since the component elements of the device other than the fluid flow system and its associated components do not constitute part of the subject invention, no detailed description of these parts is provided herein.
- the cystoscope 20 includes a tubular endoscopic sheath 24 of substantially rigid construction and preferably composed of a plastic composition. Extending lengthwise through the sheath 24 is a probe assembly 26 carrying a viewing device constituting a surgical telescope 28 terminating at its forward end in a viewing lens 30.
- the probe assembly 26 also carries a pipe-encased surgical device or excising wire 42 which, as shown, terminates at its forwardly extremity in a loop 44.
- the wire 42 and its terminal loop 44 are manipulable forwardly and rearwardly through a longitudinally extending sleeve 46 by means of an assembly including a gear 48 and a ratchet 50 controlled by a hand lever 52.
- the wires 42 are connected to an electrical jack 54 whereby electric current may be plugged in and fed to the loop 44.
- a pair of fluid conduits 56 and 58 Contained within and extending lengthwise through the sheath 24 are a pair of fluid conduits 56 and 58 terminating at the forward end of the cystoscope in ports or openings communicating with the zone in which the viewing lens 30, the light 40 and the wire loop 44 function when the instrument is put to use.
- the first conduit 56 constitutes the fluid input passage while the second conduit 58 is the fluid exhaust or return conduit.
- the conduits are demarked interiorly of the sheath 24 by means of a pair of longitudinally extending radial ribs or flanges 60 and 62 projecting between the inner wall surface 68 of the sheath 24 and the outer wall surface 72 of the probe assembly 26 passing through the sheath 24, all as indicated in FIG. 2. While in the specific form of the invention illustrated in FIG. 2 the ribs 60 and 62 are formed integrally with the sheath 24, preferably as a unitary extrusion, and the inwardly directed ends and 82 of the ribs 60 and 62 ride upon and engage the surface 72 of the probe assembly 26 in fluid sealing engagement therewith. it will be appreciated that other mechanical arrangements are possible.
- the radial ribs and 92 which demark the two longitudinally extending passages 56 and 58 may be made of steel as part of the outer shell 34 of the probe assembly 26 and may bear upon the inner wall 68 of the sheath 24 in fluid sealing engagement.
- the in-put conduit 56 and the exhaust conduit 58 are carried entirely by and constitute an integrally formed part of the sheath 24.
- Such an arrangement is indicated schematically in FIG. 4 in which internal webs 94 and 96 cooperate with the sheath 24 to form the conduits.
- the rearward end 100 of the sheath 24 is sealed into or otherwise affixed to a collar 104 sleeved on an annular neck 106 in fluid tight engagement therewith to fasten the sheath on the resectoscope.
- a pair of stub pipe connectors 108 and 110 are sealed through the wall 114 of the collar 104 and communicate interiorly of the collar with the rearward ends of the fluid conduits 56 and 58 completing the connection between the interior of the sheath and the connections 108 and 110 to which flexible hoses (not shown) may be attached.
- the controlled introduction of isotonic fluid through the stub 108 causes the fluid to flow linearly through the conduit 56 and to discharge in the treatment zone 116 and, thereafter, to continue its path to return through the conduit 58 and to be discharged through the stub 110 exteriorly of the cystoscope 20.
- FIG. 5 a schematic representation of exemplary control apparatus used in ensuring that the fluid stream is properly introduced through the cystoscope, to the zone of treatment, and thence from that zone back through the cystoscopic device, tobe discharged.
- the apparatus described includes various safety devices and controls, all directed to making the entire procedure safe and reliable under all contingencies.
- a motor 120 is coupled to a fluid pump 124 by means of a mechanical coupling 126 connecting the output shaft 128 of the motor to the in-put drive shaft 132 of the pump 124, whereby actuation of the pump is effective to transfer an isotonic solution 140, e.g. 1.1% glycine. or any other desired liquid preparation, from a reservoir 142 through a pick-up tube 146 for delivery into a cystoscopic fluid feed line 150.
- an isotonic solution 140 e.g. 1.1% glycine. or any other desired liquid preparation
- a fluid pressure regulator 154 Connected between the pump 124 and the cystoscope 20 is a fluid pressure regulator 154, a control valve 156, a fluid pressure gauge 160, and a fluid pressure limiting control 164.
- the fluid in-put lead line is connected directly to fluid in-put stub 108 of the cystoscope 20, all as shown.
- the fluid is removed through the passage 58 leading to an input end 170 of a discharge tube 174 connected to the output lead 110 of the cystoscope. Finally, the fluid is discharged to a collecting vessel or drain provided with a discharge valve 182.
- the flow rate may be varied as the physician determines, and rates of up to about 1000 cc/min. have been used effectively.
- a pressure limit control 184 Connected between the fluid discharge port 110 of the cystoscope 20 and the drain 180 in the discharge line 174 is a pressure limit control 184, a pressure gauge 186, and a valve 188.
- the pressure regulators, gauges. and limit controls for the fluid pressure serve important safety and control functions and enable the physician to know at all times the precise conditions in the treatment system.
- the pressure limit controls 164 and 184 are automatic in operation and ensure that a pressure in excess of a predetermined, selectable value does not develop in the zone of treatment.
- the gauges 160 and 186 provide a constant visual indication of the actual pressure in the system, and the pressure regulator 154 and the control valves 156 and 188 impart desirable versatility to the apparatus.
- a filter 190 may be coupled into the pickup tube 146 so that fluid 140 transmitted through the input line from the reservoir 142 will be free of objectionable solids.
- the flow rate through the input line or passage 56 to the operation zone 116 will be greater than the lineal flow rate in the return line 58.
- the greater cross sectional area of the return line will facilitate the removal of solids from the operational zone.
- the input fluid discharge port will be sufficiently close to the viewing lens 30 so that a constant flow of fluid will wash the surface of the lens and enhance viewing capabilities.
- An additional feature of the preferred embodiment of the invention illustrated is the incorporation of a second pump 194, located in the fluid discharge line 174 of the fluid pumping apparatus depicted in FIG. 5.
- the pump 194 is functionally synchronized, volumewise with the fluid input pump 124 so that there will be no pressure buildup in the treatment zone 116, and no tendency for collapse of the organ due to evacuation.
- conduit means insertable longitudinally into a restricted passage communicating with a body cavity for transmittal of a fluid stream through said passage and into and from a zone of treatment subjected to a surgical technique
- tissue treatment means including means for removing tissue from said zone.
- optical means for viewing said zone
- flow rate synchronization means operable functionmeans for selectively manipulating said tissue treatn i a series fl h including a zone f treat.
Abstract
An endoscope characterized by two separate yet generally coextensive fluid conduits disposed along the length thereof, thereby making feasible the establishment of a continuous, uninterrupted tissue-irrigating flow of fluid to and from a zone of examination and treatment into which the lead portion of the endoscope is introduced, so as to purge the zone to enhance the viewing therewithin and to facilitate treatment including surgical procedures carried out in the zone. Sensing means, pressure indicator means, and regulator means are provided for monitoring and controlling the fluid flow rate and for setting and limiting fluid pressure in the system.
Description
United States Patent 1 Widran Aug. 19, 1975 1 ENDOSCOPE WITH UNINTERRUPTED FLOW PURGING SYSTEM Jerrold Widran, 60 State Dr., Glencoe, Ill. 60022 [22] Filed: Dec. 10, 1973 [21] Appl. No: 423,489
[76] Inventor:
[52] U.S. Cl. 128/7; 128/276; 128/303.15;
137/391 [51] Int. C13. A61B 1/06; A61M l/00 [58] Field of Search 128/6, 7, 303.15, 305,
Primary Examiner-Richard A. Gaudet Assistant Examiner-Henry S. Layton Attorney, Agent, or Firm-Kegan, Kegan & Berkman [57] ABSTRACT An endoscope characterized by two separate yet generally coextensive fluid conduits disposed along the length thereof, thereby making feasible the establishment of a continuous, uninterrupted tissue-irrigating flow of fluid to and from a zone of examination and treatment into which the lead portion of the endoscope is introduced, so as to purge the zone to enhance the viewing therewithin and to facilitate treatment including surgical procedures carried out in the zone. Sensing means, pressure indicator means, and regulator means are provided for monitoring and controlling the fluid flow rate and for setting and limiting fluid pressure in the system.
1 Claim, 5 Drawing Figures 7 I I/O 56 f I70 20 PATENTEDAUE1 9 1975 LA N5 n. v@ QQ v8 ENDOSCOPE WITH UNINTERRUPTED FLOW PURGING SYSTEM The present invention relates to an endoscope or similar instrument finding utility in the examination of the interior of a hollow organ, as, for example, the urethra, and the bladder. More particularly, the invention is directed to a resectoscope with a markedly improved fluid transmitting system characterized in that it includes two separate yet generally coextensive fluid conduits disposed along the length of the device, one conduit constituting a fluid input channel or passage and the other a fluid return or exhaust passage, both in communication with an internal body cavity or medical treatment zone.
It is an important feature of the invention that the fluid conduit system makes it feasible to establish a continuous, uninterrupted tissue-irrigating flow of fluid to and from a zone of examination and treatment into which the lead portion of the endoscope is introduced. The technique which is made possible through the use of the improved apparatus of the invention enables one to purge the zone of treatment to enhance the viewing therewithin and to facilitate surgical procedures which may be required.
In a preferred embodiment of the invention the apparatus includes fluid pressure sensing and indicator means together with pressure regulating means and guage means for monitoring and controlling the fluid flow rate and for adjusting and limiting the fluid pressure in the system.
It will be appreciated by those skilled in the art that the subject invention is a marked, significant improvement over the prior art related devices which utilize but a single fluid conduit or passage running through the probe or sheath of the endoscope. The art is replete with descriptions of prior art diagnostic and surgical instruments including cystoscopes which function with the benefit of only a single fluid transmission duct. Such a cystoscope is described in Wallace US. Pat. No. 2,487,498, and the entire disclosure of that patent is hereby incorporated herein by reference to the extent that it is not inconsistent herewith.
Other and further features and advantages of the invention will become apparent from the following description considered in conjunction with the drawings in which:
FIG. I is a side elevational view of a resectoscope incorporating the present invention, portions of the instrument being cut away to show the components contained within the outer sheath;
FIG. 2 is a cross-sectional view taken substantially on the line 2-2 of FIG. 1 and showing the arrangement of the fluid input and the fluid exhaust passages extending through the sheath of the resectoscope;
FIG. 3 is a cross-sectional view similar to FIG. 2 but showing a second arrangement of the fluid input and exhaust passages;
FIG. 4 is a cross-sectional view. similar to FIG. 3 but showing still another arrangement of the fluid input and fluid exhaust passages; and
FIG. 5 is a schematic representation of the fluid pumping and control system used in conjunction with the improved resectoscope of the invention.
The aims and objects of the invention are accomplished by providing, in an endoscope, a pair of fluid conduits communicating between a fluid supply reservoir and an internal body zone of medical treatment to establish a continuous, uninterrupted purging flow of fluid into and from the zone of treatment. In addition to the fluid reservoir and the pump for impelling the fluid through the conduit system, there is provided auxiliary equipment to enhance the procedure and to serve as controls and protective devices ensuring proper op eration under all conditions. Included in this auxiliary equipment are valves for regulating the fluid flow rate, pressure control elements for setting the required pressure in the fluid system, gauge means for monitoring the pressure in the system, and automatically-operating limit controls to ensure that no pressures above those desired are established in the system, particularly in the critical zone of treatment. All of the above structures are in addition to the conventional components of an endoscope, including the viewing or optical system, the illuminating system, and surgical elements such as a wire loop and the mechanical means for manipulating the loop.
For purposes of illustration, the endoscope of the invention will be described with specific reference to a cystoscope. Since the component elements of the device other than the fluid flow system and its associated components do not constitute part of the subject invention, no detailed description of these parts is provided herein. Referring now to the drawing, and particularly to FIGS. 1 to 4, for purposes of illustrative disclosure, a preferred embodiment of one form of the invention is shown incorporated in a cystoscope 20. As depicted, the cystoscope 20 includes a tubular endoscopic sheath 24 of substantially rigid construction and preferably composed of a plastic composition. Extending lengthwise through the sheath 24 is a probe assembly 26 carrying a viewing device constituting a surgical telescope 28 terminating at its forward end in a viewing lens 30. Also extending linearly through the sheath 24 as part of the probe assembly are electrical conductors 32 contained in a pipe 34 and used to supply power from a power supply (not shown) to an illuminating bulb 40, in the conventional manner. The probe assembly 26 also carries a pipe-encased surgical device or excising wire 42 which, as shown, terminates at its forwardly extremity in a loop 44.
The wire 42 and its terminal loop 44 are manipulable forwardly and rearwardly through a longitudinally extending sleeve 46 by means of an assembly including a gear 48 and a ratchet 50 controlled by a hand lever 52. The wires 42 are connected to an electrical jack 54 whereby electric current may be plugged in and fed to the loop 44.
Contained within and extending lengthwise through the sheath 24 are a pair of fluid conduits 56 and 58 terminating at the forward end of the cystoscope in ports or openings communicating with the zone in which the viewing lens 30, the light 40 and the wire loop 44 function when the instrument is put to use. The first conduit 56 constitutes the fluid input passage while the second conduit 58 is the fluid exhaust or return conduit.
In the particular embodiment of the invention illustrated, the conduits are demarked interiorly of the sheath 24 by means of a pair of longitudinally extending radial ribs or flanges 60 and 62 projecting between the inner wall surface 68 of the sheath 24 and the outer wall surface 72 of the probe assembly 26 passing through the sheath 24, all as indicated in FIG. 2. While in the specific form of the invention illustrated in FIG. 2 the ribs 60 and 62 are formed integrally with the sheath 24, preferably as a unitary extrusion, and the inwardly directed ends and 82 of the ribs 60 and 62 ride upon and engage the surface 72 of the probe assembly 26 in fluid sealing engagement therewith. it will be appreciated that other mechanical arrangements are possible. For example, as indicated in the cross sectional view of FIG. 3 the radial ribs and 92 which demark the two longitudinally extending passages 56 and 58 may be made of steel as part of the outer shell 34 of the probe assembly 26 and may bear upon the inner wall 68 of the sheath 24 in fluid sealing engagement. Many other suitable variations are possible including an arrangement in which the in-put conduit 56 and the exhaust conduit 58 are carried entirely by and constitute an integrally formed part of the sheath 24. Such an arrangement is indicated schematically in FIG. 4 in which internal webs 94 and 96 cooperate with the sheath 24 to form the conduits.
The rearward end 100 of the sheath 24 is sealed into or otherwise affixed to a collar 104 sleeved on an annular neck 106 in fluid tight engagement therewith to fasten the sheath on the resectoscope. A pair of stub pipe connectors 108 and 110 are sealed through the wall 114 of the collar 104 and communicate interiorly of the collar with the rearward ends of the fluid conduits 56 and 58 completing the connection between the interior of the sheath and the connections 108 and 110 to which flexible hoses (not shown) may be attached. Thus, the controlled introduction of isotonic fluid through the stub 108 causes the fluid to flow linearly through the conduit 56 and to discharge in the treatment zone 116 and, thereafter, to continue its path to return through the conduit 58 and to be discharged through the stub 110 exteriorly of the cystoscope 20.
The basic features and the inventive concepts of the subject development having been set forth, there is depicted in FIG. 5 a schematic representation of exemplary control apparatus used in ensuring that the fluid stream is properly introduced through the cystoscope, to the zone of treatment, and thence from that zone back through the cystoscopic device, tobe discharged. The apparatus described includes various safety devices and controls, all directed to making the entire procedure safe and reliable under all contingencies.
Referring now more particularly to FIG. 5 there is shown, in conjunction with the improved cystoscope of the invention, the fluid pumping and irrigation system together with pressure regulators, valves, other controls, safety devices, and gauges. A motor 120 is coupled to a fluid pump 124 by means of a mechanical coupling 126 connecting the output shaft 128 of the motor to the in-put drive shaft 132 of the pump 124, whereby actuation of the pump is effective to transfer an isotonic solution 140, e.g. 1.1% glycine. or any other desired liquid preparation, from a reservoir 142 through a pick-up tube 146 for delivery into a cystoscopic fluid feed line 150. Connected between the pump 124 and the cystoscope 20 is a fluid pressure regulator 154, a control valve 156, a fluid pressure gauge 160, and a fluid pressure limiting control 164. At its discharge end 166 the fluid in-put lead line is connected directly to fluid in-put stub 108 of the cystoscope 20, all as shown. After delivery of the irrigating fluid through the conduit 56 of the cystoscope 20 into 6 the zone of treatment 1 16, the fluid is removed through the passage 58 leading to an input end 170 of a discharge tube 174 connected to the output lead 110 of the cystoscope. Finally, the fluid is discharged to a collecting vessel or drain provided with a discharge valve 182. The flow rate may be varied as the physician determines, and rates of up to about 1000 cc/min. have been used effectively. Connected between the fluid discharge port 110 of the cystoscope 20 and the drain 180 in the discharge line 174 is a pressure limit control 184, a pressure gauge 186, and a valve 188.
Those skilled in the medical art involved will appreciate that the pressure regulators, gauges. and limit controls for the fluid pressure serve important safety and control functions and enable the physician to know at all times the precise conditions in the treatment system. The pressure limit controls 164 and 184 are automatic in operation and ensure that a pressure in excess of a predetermined, selectable value does not develop in the zone of treatment. The gauges 160 and 186 provide a constant visual indication of the actual pressure in the system, and the pressure regulator 154 and the control valves 156 and 188 impart desirable versatility to the apparatus.
Optionally, a filter 190 may be coupled into the pickup tube 146 so that fluid 140 transmitted through the input line from the reservoir 142 will be free of objectionable solids. In a-preferred operational technique, the flow rate through the input line or passage 56 to the operation zone 116 will be greater than the lineal flow rate in the return line 58. The greater cross sectional area of the return line will facilitate the removal of solids from the operational zone. It is also a feature of the operational techniques contemplated that the input fluid discharge port will be sufficiently close to the viewing lens 30 so that a constant flow of fluid will wash the surface of the lens and enhance viewing capabilities. An additional feature of the preferred embodiment of the invention illustrated is the incorporation of a second pump 194, located in the fluid discharge line 174 of the fluid pumping apparatus depicted in FIG. 5. The pump 194 is functionally synchronized, volumewise with the fluid input pump 124 so that there will be no pressure buildup in the treatment zone 116, and no tendency for collapse of the organ due to evacuation.
While several different mechanical arrangements have been described for the fluid input and the fluid exhaust lines in the endoscope of the invention, those skilled in the art will appreciate that still other mechanical variations are possible, including coaxial passages such as one tube wholely within the other to provide a system in which the input passes through a tube while the exhaust is discharged through an annular passage surrounding that tube.
While there have been described what are considered to be preferred embodiments of the invention, it will be obvious to those skilled in the art that various changes and modifications may be made without departing from the invention, and it is intended that the appended claims cover all such modifications as fall within the spirit and scope of the invention.
vWhat is claimed is:
1. In an endoscope including conduit means insertable longitudinally into a restricted passage communicating with a body cavity for transmittal of a fluid stream through said passage and into and from a zone of treatment subjected to a surgical technique,
tissue treatment means including means for removing tissue from said zone.
optical means for viewing said zone,
6 means for illuminating said zone, flow rate synchronization means operable functionmeans for selectively manipulating said tissue treatn i a series fl h including a zone f treat. means carrying out Said Surglcal technique ment to synchronize said fluid impelling means pump means for driving fluid through said conduit means for said zone of treatment, thereby to estab- 5 lish a continuous fluid flow circuit for passage of fluid into and discharge of fluid from Said zone of son of fluid forced mto said zone of treatment, and treatment in an uninterrupted stream, and to obviate collapse of said body cavity as a result fluid impelling means distinct from said pump means of fluid evacuation therefromthe improvement comprising:
volume-wise with said pump means to preclude pressure buildup in said zone of treatment by rea-
Claims (1)
1. In an endoscope including conduit means insertable longitudinally into a restricted passage communicating with a body cavity for transmittal of a fluid stream through said passage and into and from a zone of treatment subjected to a surgical technique, tissue treatment means including means for removing tissue from said zone, optical means for viewing said zone, means for illuminating said zone, means for selectively manipulating said tissue treatment means in carrying out said surgical technique, pump means for driving fluid through said conduit means for said zone of treatment, thereby to establish a continuous fluid flow circuit for passage of fluid into and discharge of fluid from said zone of treatment in an uninterrupted stream, and fluid impelling means distinct from said pump means the improvement comprising: flow rate synchronization means operable functionally in a series flow path including a zone of treatment to synchronize said fluid impelling means volume-wise with said pump means to preclude pressure buildup in said zone of treatment by reason of fluid forced into said zone of treatment, and to obviate collapse of said body cavity as a result of fluid evacuation therefrom.
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US42348973 US3900022A (en) | 1973-12-10 | 1973-12-10 | Endoscope with uninterrupted flow purging system |
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US42348973 US3900022A (en) | 1973-12-10 | 1973-12-10 | Endoscope with uninterrupted flow purging system |
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Cited By (98)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2703274A1 (en) * | 1977-01-27 | 1978-08-03 | Wolf Gmbh Richard | ENDOSCOPE, IN PARTICULAR RESECTOSCOPE WITH CONTINUOUS FLUSHING OF A BODY Cavity |
DE3011901A1 (en) * | 1979-04-23 | 1980-10-30 | Medos Kenkyusho Kk | DEVICE FOR PREVENTING MOISTURE FROM THE VIEWING LENS WINDOW OF AN ENDOSCOPE |
US4248214A (en) * | 1979-05-22 | 1981-02-03 | Robert S. Kish | Illuminated urethral catheter |
US4316465A (en) * | 1979-03-30 | 1982-02-23 | Dotson Robert S Jun | Ophthalmic handpiece with pneumatically operated cutter |
WO1982003545A1 (en) * | 1981-04-10 | 1982-10-28 | Jerrold Widran | Continuous flow urological endoscopic apparatus |
WO1983001893A1 (en) * | 1981-12-01 | 1983-06-09 | Univ California | A catheter assembly |
US4407159A (en) * | 1981-01-19 | 1983-10-04 | Wytaniec Casimir S | Apparatus and method for detecting an interface from a remote location |
DE3338758A1 (en) * | 1983-10-21 | 1985-05-09 | Hubert Dipl.-Ing. Fuchs | Device for the perfusion of liquids in body cavities |
FR2569555A1 (en) * | 1984-08-31 | 1986-03-07 | Burner Robert | Liquid drainage system for endoscope, in particular for urological endoscope |
FR2569554A1 (en) * | 1984-08-31 | 1986-03-07 | Burner Robert | Liquid injection system for endoscopy, in particular for urological endoscopy |
EP0173816A2 (en) * | 1984-09-03 | 1986-03-12 | Storz, Karl, Dr.med. h.c. | Irrigation and suction device for endoscopy |
WO1986001390A1 (en) * | 1984-08-31 | 1986-03-13 | Robert Burner | Apparatus for the controlled irrigation of natural conduits and cavities of the human body |
WO1987000759A1 (en) * | 1985-07-29 | 1987-02-12 | Minnesota Mining And Manufacturing Company | Irrigation system |
FR2588744A1 (en) * | 1985-10-17 | 1987-04-24 | Hallez Jean Paul | Device for exploration of cavities and its use, in particular in the uterine cavity |
US4875897A (en) * | 1981-06-12 | 1989-10-24 | Regents Of University Of California | Catheter assembly |
US4893634A (en) * | 1987-06-01 | 1990-01-16 | Problamnaya Nauchno-Issledovatelskaya Laboratoria Vspomogatelnogo Krovoobraschenia | Device for cleansing measuring pressure in the colon |
US4902276A (en) * | 1986-06-09 | 1990-02-20 | The Regents Of The University Of California | Apparatus and method for removing obstructions in bodily organs or cavities |
US4902277A (en) * | 1987-08-26 | 1990-02-20 | Orthoconcept | Circulating a liquid through a joint |
FR2639819A1 (en) * | 1986-12-25 | 1990-06-08 | Asahi Optical Co Ltd | Device forming part of an endoscopic apparatus for regulating the pressure in a cavity of the human body |
US4936301A (en) * | 1987-06-23 | 1990-06-26 | Concept, Inc. | Electrosurgical method using an electrically conductive fluid |
US4943290A (en) * | 1987-06-23 | 1990-07-24 | Concept Inc. | Electrolyte purging electrode tip |
FR2642297A1 (en) * | 1989-02-02 | 1990-08-03 | Sinergy Sa | APPARATUS FOR IRRIGATION AND SUCTION FOR USE IN ENDOSCOPIC SURGERY |
US4962770A (en) * | 1987-09-18 | 1990-10-16 | John M. Agee | Surgical method |
US5000733A (en) * | 1986-05-23 | 1991-03-19 | Orthoconcept S.A. | Circulating a liquid through a joint |
US5027792A (en) * | 1989-03-17 | 1991-07-02 | Percutaneous Technologies, Inc. | Endoscopic revision hip surgery device |
US5037386A (en) * | 1989-11-17 | 1991-08-06 | Minnesota Mining And Manufacturing Company | Pressure sensing scope cannula |
WO1991015149A1 (en) * | 1990-04-04 | 1991-10-17 | Cableries & Trefileries De Cossonay S.A. | Device for continuously irrigating and draining human or animal body tissues or cavities |
US5085658A (en) * | 1989-09-05 | 1992-02-04 | Percutaneous Technologies | Neurosurgical pathological tissue removing device |
US5089000A (en) * | 1987-09-18 | 1992-02-18 | John M. Agee | Surgical method and instrument therefor |
US5103804A (en) * | 1990-07-03 | 1992-04-14 | Boston Scientific Corporation | Expandable tip hemostatic probes and the like |
US5152746A (en) * | 1990-04-30 | 1992-10-06 | Zimmer, Inc. | Low pressure irrigation system |
FR2675367A1 (en) * | 1991-04-22 | 1992-10-23 | C D Biomedical Sa | APPARATUS FOR CONTROLLED IRRIGATION OF NATURAL BODY CAVITIES. |
FR2686787A1 (en) * | 1992-02-05 | 1993-08-06 | Roques Francois | Angioscopy installation |
US5306284A (en) * | 1992-02-19 | 1994-04-26 | John Agee | Surgical instrument |
EP0625916A1 (en) * | 1989-11-28 | 1994-11-30 | URECHE, Alexander | Eye surgery method and apparatus |
US5399160A (en) * | 1991-10-04 | 1995-03-21 | Minnesota Mining And Manufacturing Company | Irrigation tubing set having compliant sections |
US5403277A (en) * | 1993-01-12 | 1995-04-04 | Minnesota Mining And Manufacturing Company | Irrigation system with tubing cassette |
US5454784A (en) * | 1994-06-10 | 1995-10-03 | Zimmer, Inc. | Control valve for a fluid set |
US5458633A (en) * | 1994-05-24 | 1995-10-17 | Bailey; Robert W. | Irrigating laparoscopic cannula or trocar |
US5464391A (en) * | 1994-03-03 | 1995-11-07 | Northgate Technologies Inc. | Irrigation system for a surgical site |
DE4417895A1 (en) * | 1994-05-21 | 1995-11-23 | Univ Ludwigs Albert | Appliance for detecting prostate=caused urethral obstruction |
US5505707A (en) * | 1994-12-01 | 1996-04-09 | Northgate Technologies, Inc. | Tubing system with pump for delivering continuous fluid flow or fluid bolus to a surgical site |
US5514088A (en) * | 1986-06-09 | 1996-05-07 | Development Collaborative Corporation | Apparatus, and method for chemical contact dissolution of gallstones |
US5520636A (en) * | 1990-08-03 | 1996-05-28 | Knf-Neuberger | Apparatus for flushing the urinary bladder |
EP0689793A3 (en) * | 1987-01-09 | 1996-05-29 | Asahi Optical Co Ltd | Body cavity pressure adjusting device for endoscope |
EP0714255A1 (en) * | 1993-08-18 | 1996-06-05 | Vista Medical Technologies | Optical surgical device |
US5556378A (en) * | 1992-06-17 | 1996-09-17 | Storz; Karl | Device for irrigation of body cavities |
US5569283A (en) * | 1993-09-03 | 1996-10-29 | United States Surgical Corporation | Surgical cutting instrument with guarded blade |
DE19522909A1 (en) * | 1995-06-23 | 1997-01-09 | Knud H Knudsen | Catheter for urethra and bladder endoscopy for filling or emptying human bladder and observing urethra and bladder - has pressure measuring device at catheter distal end to measure pressure or pressure changes in bladder and transmit measurement to terminal |
US5605545A (en) * | 1994-05-05 | 1997-02-25 | Northgate Technologies Incorporated | Tubing system for delivering fluid to a surgical site |
US5626563A (en) * | 1993-01-12 | 1997-05-06 | Minnesota Mining And Manufacturing Company | Irrigation system with tubing cassette |
US5630798A (en) * | 1991-08-21 | 1997-05-20 | Smith & Nephew Dyonics Inc. | Fluid management system |
US5685821A (en) * | 1992-10-19 | 1997-11-11 | Arthrotek | Method and apparatus for performing endoscopic surgical procedures |
US5709698A (en) * | 1996-02-26 | 1998-01-20 | Linvatec Corporation | Irrigating/aspirating shaver blade assembly |
US5807240A (en) * | 1996-09-24 | 1998-09-15 | Circon Corporation | Continuous flow endoscope with enlarged outflow channel |
US5814009A (en) * | 1996-10-11 | 1998-09-29 | Cabot Technology Corporation | Fluid management system and replaceable tubing assembly therefor |
WO1998043531A1 (en) * | 1997-04-01 | 1998-10-08 | Vilos George A | Debris aspirating resectoscope |
US5947990A (en) * | 1997-02-24 | 1999-09-07 | Smith & Nephew, Inc. | Endoscopic surgical instrument |
US6068641A (en) * | 1998-08-25 | 2000-05-30 | Linvatec Corporation | Irrigated burr |
US20030181906A1 (en) * | 2002-03-25 | 2003-09-25 | Richard Wolf Gmbh | Resectoscope |
US20050085695A1 (en) * | 2003-10-16 | 2005-04-21 | Cemal Shener | Endoscopic device |
US20060015007A1 (en) * | 2002-10-19 | 2006-01-19 | Olympus Winter & Ibe Gmbh | Resectoscope comprisig positioned optics |
US20060129099A1 (en) * | 2004-11-30 | 2006-06-15 | Atul Kumar | System of dampening pressure pulsations caused by a positive displacement pump in endoscopic surgery |
US20060224163A1 (en) * | 2005-03-30 | 2006-10-05 | Sutton Thomas B | Phaco aspiration flow restrictor with bypass tube |
US20070021713A1 (en) * | 2004-01-19 | 2007-01-25 | Atul Kumar | System for distending body tissue cavities by continuous flow irrigation |
US20070078370A1 (en) * | 2005-06-13 | 2007-04-05 | Smith & Nephew, Inc. *Ew* | Surgical Fluid Management |
US20080091061A1 (en) * | 2006-10-11 | 2008-04-17 | Alka Kumar | Efficient continuous flow irrigation system |
US20090101562A1 (en) * | 2007-09-10 | 2009-04-23 | Brian Newton | Filter for a medical instrument assembly |
US20100305505A1 (en) * | 2009-05-29 | 2010-12-02 | Ducharme Richard W | Systems and methods for delivering therapeutic agents |
US7976501B2 (en) | 2007-12-07 | 2011-07-12 | Ethicon Endo-Surgery, Inc. | Trocar seal with reduced contact area |
US7981092B2 (en) | 2008-05-08 | 2011-07-19 | Ethicon Endo-Surgery, Inc. | Vibratory trocar |
US8100929B2 (en) | 2007-06-29 | 2012-01-24 | Ethicon Endo-Surgery, Inc. | Duckbill seal with fluid drainage feature |
US8273060B2 (en) | 2008-04-28 | 2012-09-25 | Ethicon Endo-Surgery, Inc. | Fluid removal in a surgical access device |
US8361054B2 (en) | 2008-12-23 | 2013-01-29 | Cook Medical Technologies Llc | Apparatus and methods for containing and delivering therapeutic agents |
US8568362B2 (en) | 2008-04-28 | 2013-10-29 | Ethicon Endo-Surgery, Inc. | Surgical access device with sorbents |
US8579807B2 (en) | 2008-04-28 | 2013-11-12 | Ethicon Endo-Surgery, Inc. | Absorbing fluids in a surgical access device |
US8636686B2 (en) | 2008-04-28 | 2014-01-28 | Ethicon Endo-Surgery, Inc. | Surgical access device |
USD700326S1 (en) | 2008-04-28 | 2014-02-25 | Ethicon Endo-Surgery, Inc. | Trocar housing |
US8690831B2 (en) | 2008-04-25 | 2014-04-08 | Ethicon Endo-Surgery, Inc. | Gas jet fluid removal in a trocar |
US8814829B2 (en) | 2010-08-12 | 2014-08-26 | Baxter International Inc. | Drug delivery device for fluid restricted patients |
US8870747B2 (en) | 2008-04-28 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | Scraping fluid removal in a surgical access device |
US20150157772A1 (en) * | 2012-06-08 | 2015-06-11 | Guangcheng Li | Dual Container-Type Balanced Lavage Apparatus of Thrombus Remover |
CN104780851A (en) * | 2012-09-21 | 2015-07-15 | 日机装株式会社 | Body-wall-contact-type water tank and in-cavity fluid perfusion system |
US9101744B2 (en) | 2009-05-29 | 2015-08-11 | Cook Medical Technologies Llc | Systems and methods for delivering therapeutic agents |
WO2015119032A1 (en) * | 2014-02-06 | 2015-08-13 | 日機装株式会社 | Circulating system for in-body-cavity liquid perfusion and method for controlling same |
US9358041B2 (en) | 2008-04-28 | 2016-06-07 | Ethicon Endo-Surgery, Llc | Wicking fluid management in a surgical access device |
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US10750931B2 (en) | 2015-05-26 | 2020-08-25 | Covidien Lp | Systems and methods for generating a fluid bearing for an operative procedure |
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US11338079B2 (en) * | 2017-07-10 | 2022-05-24 | Karl Storz Se & Co. Kg | Medical instrument |
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US11864735B2 (en) | 2016-05-26 | 2024-01-09 | Covidien Lp | Continuous flow endoscope |
US11883626B2 (en) | 2019-06-27 | 2024-01-30 | Boston Scientific Scimed, Inc. | Detection of an endoscope to a fluid management system |
US11931227B2 (en) | 2013-03-15 | 2024-03-19 | Cook Medical Technologies Llc | Bimodal treatment methods and compositions for gastrointestinal lesions with active bleeding |
US11963664B2 (en) | 2021-03-04 | 2024-04-23 | Olympus Winter & Ibe Gmbh | Endoscope having support body with segmented annular space |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2038393A (en) * | 1933-02-27 | 1936-04-21 | Wappler Frederick Charles | Electrodic endoscopic instrument |
US3139747A (en) * | 1961-07-03 | 1964-07-07 | Continental Oil Co | Flow regulator |
US3812855A (en) * | 1971-12-15 | 1974-05-28 | Surgical Design Corp | System for controlling fluid and suction pressure |
US3835842A (en) * | 1972-07-03 | 1974-09-17 | J Iglesias | Endoscope with continuous irrigation |
-
1973
- 1973-12-10 US US42348973 patent/US3900022A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2038393A (en) * | 1933-02-27 | 1936-04-21 | Wappler Frederick Charles | Electrodic endoscopic instrument |
US3139747A (en) * | 1961-07-03 | 1964-07-07 | Continental Oil Co | Flow regulator |
US3812855A (en) * | 1971-12-15 | 1974-05-28 | Surgical Design Corp | System for controlling fluid and suction pressure |
US3835842A (en) * | 1972-07-03 | 1974-09-17 | J Iglesias | Endoscope with continuous irrigation |
Cited By (152)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2703274A1 (en) * | 1977-01-27 | 1978-08-03 | Wolf Gmbh Richard | ENDOSCOPE, IN PARTICULAR RESECTOSCOPE WITH CONTINUOUS FLUSHING OF A BODY Cavity |
US4316465A (en) * | 1979-03-30 | 1982-02-23 | Dotson Robert S Jun | Ophthalmic handpiece with pneumatically operated cutter |
DE3011901A1 (en) * | 1979-04-23 | 1980-10-30 | Medos Kenkyusho Kk | DEVICE FOR PREVENTING MOISTURE FROM THE VIEWING LENS WINDOW OF AN ENDOSCOPE |
US4248214A (en) * | 1979-05-22 | 1981-02-03 | Robert S. Kish | Illuminated urethral catheter |
US4407159A (en) * | 1981-01-19 | 1983-10-04 | Wytaniec Casimir S | Apparatus and method for detecting an interface from a remote location |
WO1982003545A1 (en) * | 1981-04-10 | 1982-10-28 | Jerrold Widran | Continuous flow urological endoscopic apparatus |
JPS58500594A (en) * | 1981-04-10 | 1983-04-21 | ウイドラン,ジエラルド | Continuous flow urinary endoscopy device |
US4875897A (en) * | 1981-06-12 | 1989-10-24 | Regents Of University Of California | Catheter assembly |
WO1983001893A1 (en) * | 1981-12-01 | 1983-06-09 | Univ California | A catheter assembly |
DE3338758A1 (en) * | 1983-10-21 | 1985-05-09 | Hubert Dipl.-Ing. Fuchs | Device for the perfusion of liquids in body cavities |
FR2569554A1 (en) * | 1984-08-31 | 1986-03-07 | Burner Robert | Liquid injection system for endoscopy, in particular for urological endoscopy |
WO1986001390A1 (en) * | 1984-08-31 | 1986-03-13 | Robert Burner | Apparatus for the controlled irrigation of natural conduits and cavities of the human body |
US4795424A (en) * | 1984-08-31 | 1989-01-03 | Robert Burner | Apparatus for controlled irrigation of the natural cavities and tubes of the human body |
FR2569555A1 (en) * | 1984-08-31 | 1986-03-07 | Burner Robert | Liquid drainage system for endoscope, in particular for urological endoscope |
EP0173816A2 (en) * | 1984-09-03 | 1986-03-12 | Storz, Karl, Dr.med. h.c. | Irrigation and suction device for endoscopy |
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WO1987000759A1 (en) * | 1985-07-29 | 1987-02-12 | Minnesota Mining And Manufacturing Company | Irrigation system |
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FR2588744A1 (en) * | 1985-10-17 | 1987-04-24 | Hallez Jean Paul | Device for exploration of cavities and its use, in particular in the uterine cavity |
US5000733A (en) * | 1986-05-23 | 1991-03-19 | Orthoconcept S.A. | Circulating a liquid through a joint |
US4902276A (en) * | 1986-06-09 | 1990-02-20 | The Regents Of The University Of California | Apparatus and method for removing obstructions in bodily organs or cavities |
US5514088A (en) * | 1986-06-09 | 1996-05-07 | Development Collaborative Corporation | Apparatus, and method for chemical contact dissolution of gallstones |
FR2639819A1 (en) * | 1986-12-25 | 1990-06-08 | Asahi Optical Co Ltd | Device forming part of an endoscopic apparatus for regulating the pressure in a cavity of the human body |
EP0689793A3 (en) * | 1987-01-09 | 1996-05-29 | Asahi Optical Co Ltd | Body cavity pressure adjusting device for endoscope |
US4893634A (en) * | 1987-06-01 | 1990-01-16 | Problamnaya Nauchno-Issledovatelskaya Laboratoria Vspomogatelnogo Krovoobraschenia | Device for cleansing measuring pressure in the colon |
US4936301A (en) * | 1987-06-23 | 1990-06-26 | Concept, Inc. | Electrosurgical method using an electrically conductive fluid |
US4943290A (en) * | 1987-06-23 | 1990-07-24 | Concept Inc. | Electrolyte purging electrode tip |
US4902277A (en) * | 1987-08-26 | 1990-02-20 | Orthoconcept | Circulating a liquid through a joint |
US5089000A (en) * | 1987-09-18 | 1992-02-18 | John M. Agee | Surgical method and instrument therefor |
US4962770A (en) * | 1987-09-18 | 1990-10-16 | John M. Agee | Surgical method |
FR2642297A1 (en) * | 1989-02-02 | 1990-08-03 | Sinergy Sa | APPARATUS FOR IRRIGATION AND SUCTION FOR USE IN ENDOSCOPIC SURGERY |
WO1990008562A1 (en) * | 1989-02-02 | 1990-08-09 | Sinergy S.A. | Irrigation and suction apparatus usable in endoscopic surgery |
AU641379B2 (en) * | 1989-02-02 | 1993-09-23 | Sinergy S.A. | Irrigation and suction apparatus usable in endoscopic surgery |
US5178606A (en) * | 1989-02-02 | 1993-01-12 | Societe Dite Sinergy S.A., A French Corp. | Irrigation and aspiration apparatus for use in endoscopic surgery |
US5027792A (en) * | 1989-03-17 | 1991-07-02 | Percutaneous Technologies, Inc. | Endoscopic revision hip surgery device |
US5085658A (en) * | 1989-09-05 | 1992-02-04 | Percutaneous Technologies | Neurosurgical pathological tissue removing device |
US5037386A (en) * | 1989-11-17 | 1991-08-06 | Minnesota Mining And Manufacturing Company | Pressure sensing scope cannula |
EP0625916A4 (en) * | 1989-11-28 | 1995-01-18 | Alexander Ureche | Eye surgery method and apparatus. |
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WO1991015149A1 (en) * | 1990-04-04 | 1991-10-17 | Cableries & Trefileries De Cossonay S.A. | Device for continuously irrigating and draining human or animal body tissues or cavities |
US5246422A (en) * | 1990-04-04 | 1993-09-21 | Ferton Holding | Device for continuously irrigating and draining human or animal body tissues or cavities |
US5152746A (en) * | 1990-04-30 | 1992-10-06 | Zimmer, Inc. | Low pressure irrigation system |
US5103804A (en) * | 1990-07-03 | 1992-04-14 | Boston Scientific Corporation | Expandable tip hemostatic probes and the like |
US5520636A (en) * | 1990-08-03 | 1996-05-28 | Knf-Neuberger | Apparatus for flushing the urinary bladder |
WO1992018049A1 (en) * | 1991-04-22 | 1992-10-29 | C & D Biomedical S.A. | Apparatus for the controlled irrigation of natural cavities of the body |
FR2675367A1 (en) * | 1991-04-22 | 1992-10-23 | C D Biomedical Sa | APPARATUS FOR CONTROLLED IRRIGATION OF NATURAL BODY CAVITIES. |
US5882339A (en) * | 1991-08-21 | 1999-03-16 | Smith & Nephew, Inc. | Fluid management system |
US5643302A (en) * | 1991-08-21 | 1997-07-01 | Smith & Nephew Dyonics Inc. | Fluid management system |
US5630799A (en) * | 1991-08-21 | 1997-05-20 | Smith & Nephew Dyonics Inc. | Fluid management system |
US5840060A (en) * | 1991-08-21 | 1998-11-24 | Smith & Nephew, Inc. | Fluid management system |
US5630798A (en) * | 1991-08-21 | 1997-05-20 | Smith & Nephew Dyonics Inc. | Fluid management system |
US5643203A (en) * | 1991-08-21 | 1997-07-01 | Smith & Nephew Dyonics Inc. | Fluid management system |
US5399160A (en) * | 1991-10-04 | 1995-03-21 | Minnesota Mining And Manufacturing Company | Irrigation tubing set having compliant sections |
WO1993015649A1 (en) * | 1992-02-05 | 1993-08-19 | Roques Francois | Angioscopy apparatus |
FR2686787A1 (en) * | 1992-02-05 | 1993-08-06 | Roques Francois | Angioscopy installation |
US5306284A (en) * | 1992-02-19 | 1994-04-26 | John Agee | Surgical instrument |
US5556378A (en) * | 1992-06-17 | 1996-09-17 | Storz; Karl | Device for irrigation of body cavities |
US5685821A (en) * | 1992-10-19 | 1997-11-11 | Arthrotek | Method and apparatus for performing endoscopic surgical procedures |
US5931808A (en) * | 1992-10-19 | 1999-08-03 | Arthrotek, Inc. | Cassette for endoscope |
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US5403277A (en) * | 1993-01-12 | 1995-04-04 | Minnesota Mining And Manufacturing Company | Irrigation system with tubing cassette |
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US5569283A (en) * | 1993-09-03 | 1996-10-29 | United States Surgical Corporation | Surgical cutting instrument with guarded blade |
US5464391A (en) * | 1994-03-03 | 1995-11-07 | Northgate Technologies Inc. | Irrigation system for a surgical site |
US5605545A (en) * | 1994-05-05 | 1997-02-25 | Northgate Technologies Incorporated | Tubing system for delivering fluid to a surgical site |
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US5458633A (en) * | 1994-05-24 | 1995-10-17 | Bailey; Robert W. | Irrigating laparoscopic cannula or trocar |
US5454784A (en) * | 1994-06-10 | 1995-10-03 | Zimmer, Inc. | Control valve for a fluid set |
US5505707A (en) * | 1994-12-01 | 1996-04-09 | Northgate Technologies, Inc. | Tubing system with pump for delivering continuous fluid flow or fluid bolus to a surgical site |
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US5709698A (en) * | 1996-02-26 | 1998-01-20 | Linvatec Corporation | Irrigating/aspirating shaver blade assembly |
US5807240A (en) * | 1996-09-24 | 1998-09-15 | Circon Corporation | Continuous flow endoscope with enlarged outflow channel |
US5814009A (en) * | 1996-10-11 | 1998-09-29 | Cabot Technology Corporation | Fluid management system and replaceable tubing assembly therefor |
US5947990A (en) * | 1997-02-24 | 1999-09-07 | Smith & Nephew, Inc. | Endoscopic surgical instrument |
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US6068641A (en) * | 1998-08-25 | 2000-05-30 | Linvatec Corporation | Irrigated burr |
US20030181906A1 (en) * | 2002-03-25 | 2003-09-25 | Richard Wolf Gmbh | Resectoscope |
US6824544B2 (en) | 2002-03-25 | 2004-11-30 | Richard Wolf Gmbh | Resectoscope |
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US20060015007A1 (en) * | 2002-10-19 | 2006-01-19 | Olympus Winter & Ibe Gmbh | Resectoscope comprisig positioned optics |
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US20050085695A1 (en) * | 2003-10-16 | 2005-04-21 | Cemal Shener | Endoscopic device |
US7150713B2 (en) | 2003-10-16 | 2006-12-19 | Smith & Nephew, Inc. | Endoscopic device |
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US8241242B2 (en) * | 2005-03-30 | 2012-08-14 | Abbott Medical Optics Inc. | Phacoaspiration flow restrictor with bypass tube |
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US8226549B2 (en) * | 2006-10-11 | 2012-07-24 | Alka Kumar | Efficient continuous flow irrigation system |
US20080091061A1 (en) * | 2006-10-11 | 2008-04-17 | Alka Kumar | Efficient continuous flow irrigation system |
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US8100929B2 (en) | 2007-06-29 | 2012-01-24 | Ethicon Endo-Surgery, Inc. | Duckbill seal with fluid drainage feature |
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US20090101562A1 (en) * | 2007-09-10 | 2009-04-23 | Brian Newton | Filter for a medical instrument assembly |
US7976501B2 (en) | 2007-12-07 | 2011-07-12 | Ethicon Endo-Surgery, Inc. | Trocar seal with reduced contact area |
US8672890B2 (en) | 2007-12-07 | 2014-03-18 | Ethicon Endo-Surgery, Inc. | Trocar seal with reduced contact area |
US8690831B2 (en) | 2008-04-25 | 2014-04-08 | Ethicon Endo-Surgery, Inc. | Gas jet fluid removal in a trocar |
US9827383B2 (en) | 2008-04-28 | 2017-11-28 | Ethicon Llc | Surgical access device |
USD878606S1 (en) | 2008-04-28 | 2020-03-17 | Ethicon Llc | Fluid remover |
US11235111B2 (en) | 2008-04-28 | 2022-02-01 | Ethicon Llc | Surgical access device |
US8636686B2 (en) | 2008-04-28 | 2014-01-28 | Ethicon Endo-Surgery, Inc. | Surgical access device |
US8273060B2 (en) | 2008-04-28 | 2012-09-25 | Ethicon Endo-Surgery, Inc. | Fluid removal in a surgical access device |
US8870747B2 (en) | 2008-04-28 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | Scraping fluid removal in a surgical access device |
US8579807B2 (en) | 2008-04-28 | 2013-11-12 | Ethicon Endo-Surgery, Inc. | Absorbing fluids in a surgical access device |
US8568362B2 (en) | 2008-04-28 | 2013-10-29 | Ethicon Endo-Surgery, Inc. | Surgical access device with sorbents |
US9033929B2 (en) | 2008-04-28 | 2015-05-19 | Ethicon Endo-Surgery, Inc. | Fluid removal in a surgical access device |
US9358041B2 (en) | 2008-04-28 | 2016-06-07 | Ethicon Endo-Surgery, Llc | Wicking fluid management in a surgical access device |
USD736926S1 (en) | 2008-04-28 | 2015-08-18 | Ethicon Endo-Sugery, Inc. | Trocar housing |
USD735852S1 (en) | 2008-04-28 | 2015-08-04 | Ethicon Endo-Surgery, Inc. | Fluid remover |
USD700326S1 (en) | 2008-04-28 | 2014-02-25 | Ethicon Endo-Surgery, Inc. | Trocar housing |
US9839772B2 (en) | 2008-05-06 | 2017-12-12 | Cook Medical Technologies Llc | Apparatus and methods for delivering therapeutic agents |
US10994110B2 (en) | 2008-05-06 | 2021-05-04 | Cook Medical Technologies Llc | Apparatus and methods for delivering therapeutic agents |
US7981092B2 (en) | 2008-05-08 | 2011-07-19 | Ethicon Endo-Surgery, Inc. | Vibratory trocar |
US8361054B2 (en) | 2008-12-23 | 2013-01-29 | Cook Medical Technologies Llc | Apparatus and methods for containing and delivering therapeutic agents |
US8118777B2 (en) | 2009-05-29 | 2012-02-21 | Cook Medical Technologies Llc | Systems and methods for delivering therapeutic agents |
US20100305505A1 (en) * | 2009-05-29 | 2010-12-02 | Ducharme Richard W | Systems and methods for delivering therapeutic agents |
US8728032B2 (en) | 2009-05-29 | 2014-05-20 | Cook Medical Technologies Llc | Systems and methods for delivering therapeutic agents |
US9375533B2 (en) | 2009-05-29 | 2016-06-28 | Cook Medical Technologies Llc | Systems and methods for delivering therapeutic agents |
US9101744B2 (en) | 2009-05-29 | 2015-08-11 | Cook Medical Technologies Llc | Systems and methods for delivering therapeutic agents |
US8814829B2 (en) | 2010-08-12 | 2014-08-26 | Baxter International Inc. | Drug delivery device for fluid restricted patients |
US20150157772A1 (en) * | 2012-06-08 | 2015-06-11 | Guangcheng Li | Dual Container-Type Balanced Lavage Apparatus of Thrombus Remover |
CN104780851A (en) * | 2012-09-21 | 2015-07-15 | 日机装株式会社 | Body-wall-contact-type water tank and in-cavity fluid perfusion system |
US11931227B2 (en) | 2013-03-15 | 2024-03-19 | Cook Medical Technologies Llc | Bimodal treatment methods and compositions for gastrointestinal lesions with active bleeding |
US10806853B2 (en) | 2013-10-02 | 2020-10-20 | Cook Medical Technologies Llc | Therapeutic agents for delivery using a catheter and pressure source |
US9867931B2 (en) | 2013-10-02 | 2018-01-16 | Cook Medical Technologies Llc | Therapeutic agents for delivery using a catheter and pressure source |
US11696984B2 (en) | 2013-10-02 | 2023-07-11 | Cook Medical Technologies Llc | Therapeutic agents for delivery using a catheter and pressure source |
WO2015119032A1 (en) * | 2014-02-06 | 2015-08-13 | 日機装株式会社 | Circulating system for in-body-cavity liquid perfusion and method for controlling same |
CN105992598A (en) * | 2014-02-06 | 2016-10-05 | 日机装株式会社 | Circulating system for in-body-cavity liquid perfusion and method for controlling same |
JP2015146884A (en) * | 2014-02-06 | 2015-08-20 | 日機装株式会社 | Circulation-type body cavity liquid perfusion system and method of controlling the same |
US10159780B2 (en) | 2014-02-06 | 2018-12-25 | Nikkiso Co., Ltd. | Circulating system for in-body-cavity liquid perfusion and method for controlling same |
CN105992598B (en) * | 2014-02-06 | 2018-11-20 | 日机装株式会社 | Circular form body intracavity liquid perfusion system and its control method |
US10750931B2 (en) | 2015-05-26 | 2020-08-25 | Covidien Lp | Systems and methods for generating a fluid bearing for an operative procedure |
US11864735B2 (en) | 2016-05-26 | 2024-01-09 | Covidien Lp | Continuous flow endoscope |
US11338079B2 (en) * | 2017-07-10 | 2022-05-24 | Karl Storz Se & Co. Kg | Medical instrument |
DE102018129904A1 (en) * | 2018-11-27 | 2020-05-28 | Olympus Winter & Ibe Gmbh | Resectoscope with an electrode instrument in the outer shaft |
US11883626B2 (en) | 2019-06-27 | 2024-01-30 | Boston Scientific Scimed, Inc. | Detection of an endoscope to a fluid management system |
DE102021105244B3 (en) | 2021-03-04 | 2022-06-15 | Olympus Winter & Ibe Gmbh | endoscope |
US11963664B2 (en) | 2021-03-04 | 2024-04-23 | Olympus Winter & Ibe Gmbh | Endoscope having support body with segmented annular space |
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