US3070132A - Non-sparking medico-surgical tubes - Google Patents

Non-sparking medico-surgical tubes Download PDF

Info

Publication number
US3070132A
US3070132A US20311A US2031160A US3070132A US 3070132 A US3070132 A US 3070132A US 20311 A US20311 A US 20311A US 2031160 A US2031160 A US 2031160A US 3070132 A US3070132 A US 3070132A
Authority
US
United States
Prior art keywords
tube
tubes
medico
surgical
sparking
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
US20311A
Inventor
David S Sheridan
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21797906&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3070132(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to US20311A priority Critical patent/US3070132A/en
Application granted granted Critical
Publication of US3070132A publication Critical patent/US3070132A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05FSTATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00Carrying-off electrostatic charges
    • H05F3/02Carrying-off electrostatic charges by means of earthing connections
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/24Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25Bioelectric electrodes therefor
    • A61B5/276Protection against electrode failure
    • 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
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/04Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/127Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting electrically conducting

Definitions

  • medico-surgical tubes e.g., catheters, duodenal tubes, nasal cannulae, rectal tubes, oxygen connecting tubes, anesthesia administration tubes, and feeding tubes.
  • These medico-surgical tubes are made from a variety of materials, although rubber and vinyl plastics account for the large bulk of medico-surgical tubes which are made and sold today.
  • the trend today in medical practice is to employ single-use, disposable catheters and other medico-surgical tubes. Because of the economy of production, most of such disposable tubes are formed by extrusion methods from vinyl plastic material.
  • the vinyl plastic material used to form extruded medico-surgical tubes is compounded from dielectric polymers. These polymers, Whether in a plasticized or unplasticized state, when brought in frictional contact with other bodies, e.g., fabrics of cotton, nylon or the like, acquire a strong electrostatic charge.
  • the great hazard associated with possible ignition of flammable gases by electrostatic spark discharge in anesthetizing locations in hospitals has long been known and appreciated. Both hospital personnel and insurance companies are vitally interested, and a number of political subdivisions now have statutes designed to eliminate the hazard associated with electrostatic spark discharge in connection with medical and surgical operations.
  • the sparking hazard is mainly associated with anesthetizing procedures which employ combustible anesthetic agents, including cyclopropane, divinyl ether, ethyl chloride, ethyl ether and ethylene.
  • Hazardous anesthetizing locations are not limited to operating rooms of hospitals, but may include any area of a hospital in which it is intended to administer to a patient any combustible anesthetic agent in the course of examination or treatment. This includes, in addition to operating rooms, such other anesthetizing locations as delivery rooms, anesthetic rooms, corridors, utility rooms and other areas if used for induction of anesthesia with combustible anesthetic agents.
  • a principal object of this invention is the provision of non-sparking, medico-surgical tubes made of flexible, dielectric plastic material. Further objects include:
  • medico-surgical tubes by extrusion, from flexible, dielectric plastic material and including as an integral part of the formed tube a stripe of flexible electrically conductive, plastic material extending longitudinally along the exterior wall of the tube, and also a stripe of flexible, electrically conductive, plastic material extending longitudinally along the interior wall of the tube, the stripes being integral with the tubular member and substantially contiguous with the walls so that the medico-surgical tube has substantially smooth exterior and interior walls.
  • the interior and exterior stripes of electrically conductive plastic material may be separate from one another or they may be of such depth that they form a single fused longitudinally extending section in the medico-surgical tube.
  • the electrically conductive integral stripes so formed in the plastic medicosurgical tube may be connected to ground, whereby the tube is prevented from accumulating any electrostatic charge during its use at an anesthetizing location or any other place where it may be employed in medical or surgical operations.
  • the success of the present invention is due in part to the discovery that it is not necessary for a tubing made of flexible plastic material to be electrically conductive throughout its entire interior and exterior surfaces in order to prevent an electrostatic charge from accumulating on the tube suflicient to cause a sparking discharge. It involves the further discovery that inclusion of an electrically conductive element such as a strand of wire or the like, on the other hand, within the body of the tube (see, for example, US. 2,268,321) is not capable of preventing electrostatic charge from accumulating on a medicosurgical tube. An additional discovery is that obtaining satisfactory nonsparking qualities in a medico-surgical tube requires a stripe of electrically conductive integral plastic, not only on the exterior surface of the tube, but on the interior as well.
  • FIG. 1 is a fragmentary plan view of a medico-surgical tube made in accordance with the present invention
  • FIG. 2 is an enlarged cross-sectional view of the medico-surgical tube of FIG. 1, taken along the line 22 of FIG. 1;
  • FIG. 3 is an enlarged cross-sectional view of amodified form of non-sparking rnedico-surgical tube made in accordance with this invention.
  • FIG. 4 is a fragmentary plan view of a modified form of medico-surgical tubes of this invention.
  • FIG. 5 is an enlarged cross-sectional view of yet another modified form of the new tubes.
  • the medico-surgical tube 2 basically consists of a tubular member 4 and an electrically conductive, longitudinal portion 6.
  • Tubular member 4 has a substantially smooth exterior wall 8 and a substantially smooth interior wall 10, these being substantially contiguous with the exterior surface 11 and Interior surface 12 of the electrically conductive portion 6 so that the entire tube 2 presents a smooth exterior and smooth bore.
  • the electrically conductive portion 6 runs longitudinally along the entire length of the tube 4 and is formed of flexible plastic material which is cohesive with the plasno material of the tube 4.
  • the main body of the tube 4 may be made from any suitable flexible water-proof plastic material, and although vinyl chloride homopolymers or copolymers with other vinyl esters, such as vinyl acetate, are especially useful, other usable materials include: pliable or flexible forms of nylon, polyester plastics, polyethylene, vinylidene chloride polymers, cellulose esters, acrylic polymers and the like.
  • Electrically conductive longitudinal portion 6 is preferably made from the same plastic base material as the remainder of the tubular body 4, although it is possible to form the tubular member 4 of a composition based on one plastic material and the conductive portion 6 from a different plastic material, so long as the two separate plastic materials are cohesive to one another. In any event, if the same base plastic is used to produce the tubular memher 4 and longitudinal portion 6, or a different, cohesive plastic is used to form the longitudinal portion 6, an integral structure results which is fluid-tight and which can be subjected to rigorous conditions of use, sterilization or other abuse which it may encounter in medical or surgical operations.
  • tubular memher 4 the plastic material of which tubular memher 4 is composed will be unpigmented so that all of the tube, except the longitudinal portion 6, will be transparent. This makes it possible to look through the medicosurgical tube and to view the interior to determine if there is any foreign matter or obstruction within the bore of the tube.
  • dyes can be incorporated in the plastic material to give the tube a distinct color, thus marking the tube for special uses or other purposes, e.g., oxygen connecting tubes and oxygen nasal cannulae are colored a light green in accordance with established practice in the trade.
  • Pigments may be included in the plastic material comprising tubular member 4 to create an opaque tube, e.g., inclusion of titanium dioxide pigment to produce an opaque white composition which is used in certain forms of Levin style duodenal tubes.
  • the flexible plastic material used to form the longitudinal portion 6 of the new non-sparking tubes is rendered electrically conductive by compounding the plastic material with a substantial proportion, preferably between about and 40% and especially between about .10 and 30% of a very finely powdered electrically conductive solid material.
  • Finely subdivided metals such as cop- 'per, aluminum or silver are examples of electrically conductive materials which may be employed to form electrically conductive plastic material for the longitudinal portion 6 of the non-sparking tubes.
  • carbon as the electrically conductive component of the plastic composition is preferred over the use of powdered metals, because of its lack of deteriorating effect upon the plastic matrix and because of its relative inertness to body fluids or other materials with which it comes in contact during normal use of the medico-surgical tube.
  • the modified form of non-sparking tube as shown in FIG. 3 comprises a tubular member 14 having a smooth outer surface 16 and smooth inner surface 18.
  • a stripe 20 of flexible electrically conductive plastic material is embedded in the exterior surface 16 and has its exterior surface 22 contiguous with the surface 16 of the tubular member 14, so that the entire outer surface of the tube is completely smooth.
  • a second stripe 24 of flexible electrically conductive plastic material is embedded in the interior surface 18 of the tube member 14, also having a surface 26 which is contiguous with the interior surface 18.
  • the form of non-sparking medico-surgical tube shown in MG. 3 may have a slight advantage in applications where tensile strength or bursting strength of the tube are of importance, since the tube 2 includes an unfilled web portion 28 which runs longitudinally of the tube between the electrically conductive stripes 20 and 24.
  • the longitudinally extending electrically conductive tube portion 32 is formed as a sinusoidal line rather than a straight line as in H6. 1. Spiral configurations for the conductive line may also be used.
  • the tube 34 is provided with a plurality of integral electrically conductive portions 36.
  • the new non-sparking medico-surgical tubes are made by extrusion using a multi-orifice tubular extrusion die.
  • a multi-orifice tubular extrusion die Such multi-orifice extrusion equipment is known and is disclosed, for example, in US. 2,857,915.
  • the main body of the tube i.e., tubular member 4 or 14
  • the longitudinal conducting portions, 6, 20 or 24 are extruded simultaneously with the main body portion through the minor orifice or orifices of the extrusion die.
  • a biorifice tubular extrusion die is used
  • a tri-orifice tubular extrusion die is used.
  • the non-sparking tubes of this invention may be used to form a large variet of medico-surgical tubular devices. These may include nasal cannulae such as disclosed in US. 2,693,800, 2,735,432 and applicants copending application S.N. 752,050, filed July 30, 1958. Also, catheters of the Levin style, X-ray catheters of the type disclosed in US. Patents 2,212,334 or 2,857,915, oxygen connecting tubes, rectal tubes, e.g., improved rectal tubes of the type disclosed in applicants copending application S.N. 746,135, filed July 2, 1958, and medico-surgical tubes of the type having improved integral connector ends such as disclosed in applicants copending application S.N. 746,134, filed July 2, 1958.
  • the medico-surgical tubes of this invention may be also provided with one or more tapered sections as disclosed in applicants copending application 746,175, filed July 2, 1958.
  • the new tubes may be made and sold in very long continuous lengths of uniform OD. and ID. or with taperedsections therein. More commonly, however, the tubing as it is withdrawn from the extrusion die, will be cut into short lengths required for the particular medico-surgical device ultimately involving the tube. In the case of catheters, cannulae and the like, eyes or openings in the required number can be drilled, punched or melted into the tubing to form the necessary inlet openings in the distal ends of the tube.
  • the non-sparking tubes of this invention will withstand substantially all conditions of use and adverse treatment as any other plastic medico-surgical tubes. They may be manufactured to professional specifications and may be produced in various degrees of flexibility by varying the formulations of the plastic material from which the tubes are extruded. They may be used interchangeably at non-hazardous locations with similar medico-surgical tubes which do not incorporate the non-sparking feature of the tubes of this invention, and they will satisfactorily perform all the functions for which such tubes are known to be useful. Since they may be electrically grounded to prevent electrostatic charge from accumulating on the tube during its use, they substantially eliminate the electrostatic spark discharge hazard connected with the use of prior known plastic catheters or other surgical tubes which do not have their non-sparking properties. The conductive line in the new tubes may also be used to conduct electrical current from an applied currect source for special purposes, e.g., to provide heating of the tube.
  • a non-sparking medico-surgical tube comprising a tubular member having substantially smooth exterior and interior walls, said member being formed of flexible, dielectric, water-proof, plastic material, a continuous stripe of flexible electrically conductive, water-proof, plastic material extending longitudinally along said exterior wall, a stripe of flexible, electrically conductive, waterproof plastic material extending longitudinally along said interior wall, said stripes being integral with said tubular member and substantially contiguous with said walls, said tube being capable of being connected through said stripes to ground to prevent any substantial electrostatic charge from accumulating on the tube during its use.
  • a non-sparking medico-surgica-l tube which may be used in anesthetizing locations in hospitals in conformity with safe operating practice for such locations, which consists of a non-fibrous tube of flexible, waterproof dielectric plastic material, a continuous longitudinally extending electrically conductive plastic portion formed integrally with the tube of flexible, electrically conductive, water-proof plastic material, said longitudinal portion having exterior and interior surfaces contiguous with the exterior and interior surfaces of the remainder of the tube, whereby the tube has substantially smooth inner and outer surfaces.
  • Non-sparking medico-surgical tubes as claimed in claim 2, wherein said tubes, exclusive of said longitudinal electrically conductive portion, are transparent to visible light.

Description

Dec. 25, 1962 D. s. SHERIDAN 3,070,132
NON-SPARKING MEDICO-SURGICAL TUBES Filed April 6, 1960 Fial INVENTOR David. 5. Sheridan ATTORNEYS United States Patent 3,070,132 N flN-SPARKING MEDICO-SURGICAL TUBES David S. Sheridan, P.0. Box 147, Argyle, N.Y. Filed Apr. 6, 1960, Ser. No. 20,311 3 Claims. (Cl. 138118) This invention relates to non-sparking medico-surgical tubes, i.e., catheters, cannulae and similar tubular devices designed for use in surgical or medical treatments, which are free of the hazard of causing an electrostatic spark discharge to ignite flammable gas mixing in the area of use of the tubes.
Modern medical and surgical practices require a Wide variety of medico-surgical tubes, e.g., catheters, duodenal tubes, nasal cannulae, rectal tubes, oxygen connecting tubes, anesthesia administration tubes, and feeding tubes. These medico-surgical tubes are made from a variety of materials, although rubber and vinyl plastics account for the large bulk of medico-surgical tubes which are made and sold today. In order to prevent cross-infections and to eliminate the cost of sterilizing reused tubes, the trend today in medical practice is to employ single-use, disposable catheters and other medico-surgical tubes. Because of the economy of production, most of such disposable tubes are formed by extrusion methods from vinyl plastic material.
The vinyl plastic material used to form extruded medico-surgical tubes is compounded from dielectric polymers. These polymers, Whether in a plasticized or unplasticized state, when brought in frictional contact with other bodies, e.g., fabrics of cotton, nylon or the like, acquire a strong electrostatic charge.
The great hazard associated with possible ignition of flammable gases by electrostatic spark discharge in anesthetizing locations in hospitals has long been known and appreciated. Both hospital personnel and insurance companies are vitally interested, and a number of political subdivisions now have statutes designed to eliminate the hazard associated with electrostatic spark discharge in connection with medical and surgical operations. The sparking hazard is mainly associated with anesthetizing procedures which employ combustible anesthetic agents, including cyclopropane, divinyl ether, ethyl chloride, ethyl ether and ethylene. Hazardous anesthetizing locations are not limited to operating rooms of hospitals, but may include any area of a hospital in which it is intended to administer to a patient any combustible anesthetic agent in the course of examination or treatment. This includes, in addition to operating rooms, such other anesthetizing locations as delivery rooms, anesthetic rooms, corridors, utility rooms and other areas if used for induction of anesthesia with combustible anesthetic agents.
It has become a recognized fact that the electrostatic sparking hazard may be reduced by the use of suitable grounding devices and the use of electrically conductive casters, sheeting, floor coverings, mats and other equipment. Safe practices for employing electrically conductive items in medical and surgical practices have been outlined by the National Fire Protection Association and are described in N.F.P.A. Standard No. 56 entitled, Recommended Safe Practice for Hospital Operating Rooms.
A principal object of this invention is the provision of non-sparking, medico-surgical tubes made of flexible, dielectric plastic material. Further objects include:
(1) The provision of medico-surgical tubes extruded from dielectric vinyl plastic which may be used in proper combination with grounding and other conductive devices at anesthetizing locations to mitigate electrostatic sparking hazards.
(2) The provision of extruded plastic medico-surgical tubes which are capable of being connected to ground to prevent any electrostatic charge from accumulating on the tube during its use in medical or surgical operations.
(3) The provision of medico-surgical tubes made of vinyl plastic, which have an apparent exterior and interior surface resistivity of not over 1 megohm-centimeters.
Other objects and further scope of applicability of the present invention will become apparent from the detailed description given hereinafter; it should be understood, however, that the detailed description, while indicating preferred embodiments of the invention, is given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
These objects are accomplished according to the present invention by forming medico-surgical tubes, by extrusion, from flexible, dielectric plastic material and including as an integral part of the formed tube a stripe of flexible electrically conductive, plastic material extending longitudinally along the exterior wall of the tube, and also a stripe of flexible, electrically conductive, plastic material extending longitudinally along the interior wall of the tube, the stripes being integral with the tubular member and substantially contiguous with the walls so that the medico-surgical tube has substantially smooth exterior and interior walls. The interior and exterior stripes of electrically conductive plastic material may be separate from one another or they may be of such depth that they form a single fused longitudinally extending section in the medico-surgical tube. In any event, the electrically conductive integral stripes so formed in the plastic medicosurgical tube may be connected to ground, whereby the tube is prevented from accumulating any electrostatic charge during its use at an anesthetizing location or any other place where it may be employed in medical or surgical operations.
The success of the present invention is due in part to the discovery that it is not necessary for a tubing made of flexible plastic material to be electrically conductive throughout its entire interior and exterior surfaces in order to prevent an electrostatic charge from accumulating on the tube suflicient to cause a sparking discharge. It involves the further discovery that inclusion of an electrically conductive element such as a strand of wire or the like, on the other hand, within the body of the tube (see, for example, US. 2,268,321) is not capable of preventing electrostatic charge from accumulating on a medicosurgical tube. An additional discovery is that obtaining satisfactory nonsparking qualities in a medico-surgical tube requires a stripe of electrically conductive integral plastic, not only on the exterior surface of the tube, but on the interior as well.
A more complete understanding of the new non-sparking medico-surgical tubes of this invention and their method of production can be had by reference to the accompanying drawing, in which:
FIG. 1 is a fragmentary plan view of a medico-surgical tube made in accordance with the present invention;
FIG. 2 is an enlarged cross-sectional view of the medico-surgical tube of FIG. 1, taken along the line 22 of FIG. 1;
FIG. 3 is an enlarged cross-sectional view of amodified form of non-sparking rnedico-surgical tube made in accordance with this invention.
FIG. 4 is a fragmentary plan view of a modified form of medico-surgical tubes of this invention;
FIG. 5 is an enlarged cross-sectional view of yet another modified form of the new tubes.
Referring in detail to the drawings, the medico-surgical tube 2 basically consists of a tubular member 4 and an electrically conductive, longitudinal portion 6.
Tubular member 4 has a substantially smooth exterior wall 8 and a substantially smooth interior wall 10, these being substantially contiguous with the exterior surface 11 and Interior surface 12 of the electrically conductive portion 6 so that the entire tube 2 presents a smooth exterior and smooth bore.
The electrically conductive portion 6 runs longitudinally along the entire length of the tube 4 and is formed of flexible plastic material which is cohesive with the plasno material of the tube 4. The main body of the tube 4 may be made from any suitable flexible water-proof plastic material, and although vinyl chloride homopolymers or copolymers with other vinyl esters, such as vinyl acetate, are especially useful, other usable materials include: pliable or flexible forms of nylon, polyester plastics, polyethylene, vinylidene chloride polymers, cellulose esters, acrylic polymers and the like.
Electrically conductive longitudinal portion 6 is preferably made from the same plastic base material as the remainder of the tubular body 4, although it is possible to form the tubular member 4 of a composition based on one plastic material and the conductive portion 6 from a different plastic material, so long as the two separate plastic materials are cohesive to one another. In any event, if the same base plastic is used to produce the tubular memher 4 and longitudinal portion 6, or a different, cohesive plastic is used to form the longitudinal portion 6, an integral structure results which is fluid-tight and which can be subjected to rigorous conditions of use, sterilization or other abuse which it may encounter in medical or surgical operations.
Generally, the plastic material of which tubular memher 4 is composed will be unpigmented so that all of the tube, except the longitudinal portion 6, will be transparent. This makes it possible to look through the medicosurgical tube and to view the interior to determine if there is any foreign matter or obstruction within the bore of the tube. If desired, dyes can be incorporated in the plastic material to give the tube a distinct color, thus marking the tube for special uses or other purposes, e.g., oxygen connecting tubes and oxygen nasal cannulae are colored a light green in accordance with established practice in the trade. Pigments may be included in the plastic material comprising tubular member 4 to create an opaque tube, e.g., inclusion of titanium dioxide pigment to produce an opaque white composition which is used in certain forms of Levin style duodenal tubes.
The flexible plastic material used to form the longitudinal portion 6 of the new non-sparking tubes is rendered electrically conductive by compounding the plastic material with a substantial proportion, preferably between about and 40% and especially between about .10 and 30% of a very finely powdered electrically conductive solid material. Finely subdivided metals such as cop- 'per, aluminum or silver are examples of electrically conductive materials which may be employed to form electrically conductive plastic material for the longitudinal portion 6 of the non-sparking tubes. However, it is preferable to form the plastic material for the portion 6 of the new tubes using powdered, electrically conductive carbon. Such forms of carbon are standard items of commerce. The use of carbon as the electrically conductive component of the plastic composition is preferred over the use of powdered metals, because of its lack of deteriorating effect upon the plastic matrix and because of its relative inertness to body fluids or other materials with which it comes in contact during normal use of the medico-surgical tube.
The modified form of non-sparking tube as shown in FIG. 3 comprises a tubular member 14 having a smooth outer surface 16 and smooth inner surface 18. A stripe 20 of flexible electrically conductive plastic material is embedded in the exterior surface 16 and has its exterior surface 22 contiguous with the surface 16 of the tubular member 14, so that the entire outer surface of the tube is completely smooth. A second stripe 24 of flexible electrically conductive plastic material is embedded in the interior surface 18 of the tube member 14, also having a surface 26 which is contiguous with the interior surface 18.
Since the inclusion of a substantial amount of electrically conductive powder in the plastic material causes some reduction in tensile strength of the plastic material, the form of non-sparking medico-surgical tube shown in MG. 3 may have a slight advantage in applications where tensile strength or bursting strength of the tube are of importance, since the tube 2 includes an unfilled web portion 28 which runs longitudinally of the tube between the electrically conductive stripes 20 and 24. In the modified form of tube 33 shown in FIG. 4, the longitudinally extending electrically conductive tube portion 32, is formed as a sinusoidal line rather than a straight line as in H6. 1. Spiral configurations for the conductive line may also be used.
In the modification shown in FIG. 5, the tube 34 is provided with a plurality of integral electrically conductive portions 36.
The new non-sparking medico-surgical tubes are made by extrusion using a multi-orifice tubular extrusion die. Such multi-orifice extrusion equipment is known and is disclosed, for example, in US. 2,857,915. The main body of the tube, i.e., tubular member 4 or 14, is extruded through the major orifice of the extrusion die, while the longitudinal conducting portions, 6, 20 or 24 are extruded simultaneously with the main body portion through the minor orifice or orifices of the extrusion die. In the case of the form of tubing shown in FIG. 2, a biorifice tubular extrusion die is used, whereas to produce the modified form of tube shown in FIG. 3, a tri-orifice tubular extrusion die is used.
The non-sparking tubes of this invention may be used to form a large variet of medico-surgical tubular devices. These may include nasal cannulae such as disclosed in US. 2,693,800, 2,735,432 and applicants copending application S.N. 752,050, filed July 30, 1958. Also, catheters of the Levin style, X-ray catheters of the type disclosed in US. Patents 2,212,334 or 2,857,915, oxygen connecting tubes, rectal tubes, e.g., improved rectal tubes of the type disclosed in applicants copending application S.N. 746,135, filed July 2, 1958, and medico-surgical tubes of the type having improved integral connector ends such as disclosed in applicants copending application S.N. 746,134, filed July 2, 1958. The medico-surgical tubes of this invention may be also provided with one or more tapered sections as disclosed in applicants copending application 746,175, filed July 2, 1958.
The new tubes may be made and sold in very long continuous lengths of uniform OD. and ID. or with taperedsections therein. More commonly, however, the tubing as it is withdrawn from the extrusion die, will be cut into short lengths required for the particular medico-surgical device ultimately involving the tube. In the case of catheters, cannulae and the like, eyes or openings in the required number can be drilled, punched or melted into the tubing to form the necessary inlet openings in the distal ends of the tube.
The non-sparking tubes of this invention will withstand substantially all conditions of use and adverse treatment as any other plastic medico-surgical tubes. They may be manufactured to professional specifications and may be produced in various degrees of flexibility by varying the formulations of the plastic material from which the tubes are extruded. They may be used interchangeably at non-hazardous locations with similar medico-surgical tubes which do not incorporate the non-sparking feature of the tubes of this invention, and they will satisfactorily perform all the functions for which such tubes are known to be useful. Since they may be electrically grounded to prevent electrostatic charge from accumulating on the tube during its use, they substantially eliminate the electrostatic spark discharge hazard connected with the use of prior known plastic catheters or other surgical tubes which do not have their non-sparking properties. The conductive line in the new tubes may also be used to conduct electrical current from an applied currect source for special purposes, e.g., to provide heating of the tube.
I claim:
1. A non-sparking medico-surgical tube comprising a tubular member having substantially smooth exterior and interior walls, said member being formed of flexible, dielectric, water-proof, plastic material, a continuous stripe of flexible electrically conductive, water-proof, plastic material extending longitudinally along said exterior wall, a stripe of flexible, electrically conductive, waterproof plastic material extending longitudinally along said interior wall, said stripes being integral with said tubular member and substantially contiguous with said walls, said tube being capable of being connected through said stripes to ground to prevent any substantial electrostatic charge from accumulating on the tube during its use.
2. A non-sparking medico-surgica-l tube which may be used in anesthetizing locations in hospitals in conformity with safe operating practice for such locations, which consists of a non-fibrous tube of flexible, waterproof dielectric plastic material, a continuous longitudinally extending electrically conductive plastic portion formed integrally with the tube of flexible, electrically conductive, water-proof plastic material, said longitudinal portion having exterior and interior surfaces contiguous with the exterior and interior surfaces of the remainder of the tube, whereby the tube has substantially smooth inner and outer surfaces.
3. Non-sparking medico-surgical tubes as claimed in claim 2, wherein said tubes, exclusive of said longitudinal electrically conductive portion, are transparent to visible light.
References Cited in the file of this patent UNITED STATES PATENTS 2,268,321 Flynn Dec. 30, 1941 2,671,185 Bloom Mar. 2, 1954 2,811,674 Smith Oct. 29, 1957 2,870,619 Greczin Jan. 27, 1959
US20311A 1960-04-06 1960-04-06 Non-sparking medico-surgical tubes Expired - Lifetime US3070132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US20311A US3070132A (en) 1960-04-06 1960-04-06 Non-sparking medico-surgical tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20311A US3070132A (en) 1960-04-06 1960-04-06 Non-sparking medico-surgical tubes

Publications (1)

Publication Number Publication Date
US3070132A true US3070132A (en) 1962-12-25

Family

ID=21797906

Family Applications (1)

Application Number Title Priority Date Filing Date
US20311A Expired - Lifetime US3070132A (en) 1960-04-06 1960-04-06 Non-sparking medico-surgical tubes

Country Status (1)

Country Link
US (1) US3070132A (en)

Cited By (122)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166688A (en) * 1962-11-14 1965-01-19 Ronald P Rowand Polytetrafluoroethylene tubing having electrically conductive properties
US3343568A (en) * 1965-02-23 1967-09-26 Phillips Petroleum Co Extruded tubular article with clear stripe and translucent to opaque body
US3473087A (en) * 1962-05-22 1969-10-14 Raybestos Manhattan Inc Electrically conductive polytetrafluoroethylene tubing
US3561491A (en) * 1968-04-22 1971-02-09 Dow Chemical Co Configuration for nonslip plastic bag material
US3580983A (en) * 1969-12-03 1971-05-25 Nat Catheter Corp Conductive line tube
US3589368A (en) * 1969-02-07 1971-06-29 David S Sheridan Postsurgical tubes with capped proximal end
US3659588A (en) * 1970-04-08 1972-05-02 Medtronic Inc Catheter apparatus
US3847157A (en) * 1973-06-18 1974-11-12 J Caillouette Medico-surgical tube
US3907955A (en) * 1972-08-01 1975-09-23 Aeroquip Ag Process for manufacturing electrically conductive polytetrafluoroethylene tube
US3914002A (en) * 1974-04-17 1975-10-21 Sherwood Medical Ind Inc Conductive tubing and method of making same
US3943273A (en) * 1973-03-03 1976-03-09 Wavin B.V. Electrically conducting plastic pipe system
JPS5176622A (en) * 1974-11-25 1976-07-02 Suchuaado Purasuchitsukusu Inc
US4027659A (en) * 1975-11-21 1977-06-07 Krandex Corporation Radiographic opaque and conductive stripped medical tubes
US4121624A (en) * 1975-05-23 1978-10-24 Fabricated Plastics, Inc. Electrically conductive flexible tube
DE2846351A1 (en) * 1977-10-31 1979-05-03 Wavin Bv PLASTIC PIPE MADE FROM POLYVINYL CHLORIDE
US4225090A (en) * 1979-09-07 1980-09-30 Toyota Jidosha Kogyo Kabushiki Kaisha Device for painting by electrostatic powder spraying
US4307755A (en) * 1980-01-31 1981-12-29 A. B. Chance Company Glass fiber reinforced synthetic resin tube having integral metal attachment
WO1982000413A1 (en) * 1980-07-28 1982-02-18 Lab Abbott Improved radiopaque medical tubing
US4330811A (en) * 1978-04-03 1982-05-18 Ameron, Inc. Filament-reinforced plastic article
EP0010757B1 (en) * 1978-11-03 1982-11-10 Intermedicat GmbH Catheter having contrast strips opaque to x-rays
US4394705A (en) * 1982-01-04 1983-07-19 The Polymer Corporation Anti-static hose assemblies
US4447239A (en) * 1979-03-19 1984-05-08 Dr. Eduard Fresenius Chemisch-Pharmazeutishe Industry Kg Catheter with radiographic contrast strips
US4469483A (en) * 1982-08-25 1984-09-04 Baxter Travenol Laboratories, Inc. Radiopaque catheter
EP0134845A1 (en) * 1983-09-21 1985-03-27 Walter Spaa Safety catheter
US4632108A (en) * 1985-02-21 1986-12-30 Sherwood Medical Company Tube and material for use in laser surgery
US4657024A (en) * 1980-02-04 1987-04-14 Teleflex Incorporated Medical-surgical catheter
EP0222137A1 (en) * 1985-10-04 1987-05-20 Basem Dr. Nashef Probe for electric treatment of hollow organs
US4675780A (en) * 1985-08-26 1987-06-23 The Gates Rubber Company Conductive fiber hose
US4728369A (en) * 1985-04-03 1988-03-01 Hammerslag Julius G Thermocouple probes
US4773151A (en) * 1984-08-21 1988-09-27 Dunlop Limited Method of making a hose
US4789005A (en) * 1985-05-17 1988-12-06 Dunlop Limited Marine growth retarding hose
US4834726A (en) * 1987-03-11 1989-05-30 Ballard Medical Products Medical ventilating and aspirating apparatus and methods
US4938741A (en) * 1988-11-01 1990-07-03 Ballard Medical Products Medical ventilating and aspirating apparatus and methods
US4967743A (en) * 1987-03-11 1990-11-06 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US4981466A (en) * 1987-03-11 1991-01-01 Lumbert Richard C Medical ventilating and aspirating apparatus and methods
US5014753A (en) * 1988-12-02 1991-05-14 Textilver Sa Radiant heat resistant flexible tube
US5034157A (en) * 1990-03-16 1991-07-23 Itt Corporation Injection moldable composite
US5065754A (en) * 1990-06-06 1991-11-19 Ballard Medical Products Aspirating catheter tube inserter
US5107829A (en) * 1987-03-11 1992-04-28 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US5133345A (en) * 1987-03-11 1992-07-28 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US5215522A (en) * 1984-07-23 1993-06-01 Ballard Medical Products Single use medical aspirating device and method
US5277177A (en) * 1984-07-23 1994-01-11 Ballard Medical Products Single use medical aspirating device and method
US5284184A (en) * 1992-04-14 1994-02-08 Itt Corporation Corrugated multi-layer tubing having at least one fluoroplastic layer
US5375626A (en) * 1991-11-08 1994-12-27 Fears; Clois D. Method of and lining for water intake pipes
US5383087A (en) * 1992-04-14 1995-01-17 Itt Corporation Multi-layer fuel and vapor tube
US5431638A (en) * 1991-04-10 1995-07-11 United States Surgical Corporation Energy dissipation device
US5454061A (en) * 1994-05-27 1995-09-26 Steward Plastics, Inc. Apparatus and method for making flexible tubing with helically wound heating conductor
US5460771A (en) * 1992-10-16 1995-10-24 Itt Corporation Process for producing corrugated multi-layer tubing having layers of differing plastic characteristics
EP0707169A1 (en) * 1994-10-15 1996-04-17 PAGUAG GmbH & Co. Hose having an electrical conductive inner layer
US5520223A (en) * 1994-05-02 1996-05-28 Itt Industries, Inc. Extruded multiple plastic layer coating bonded to the outer surface of a metal tube having an optical non-reactive inner layer and process for making the same
US5524673A (en) * 1992-04-14 1996-06-11 Itt Corporation Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
US5538043A (en) * 1994-06-29 1996-07-23 Salazar; Dennis R. Method and apparatus for preventing pipe damage
US5566720A (en) * 1995-01-10 1996-10-22 Itt Corporation Elongated fuel and vapor tube having multiple layers and method of making the same
US5590691A (en) * 1994-05-02 1997-01-07 Itt Corporation Extruded multiple plastic layer coating bonded to a metal tube
US5678611A (en) * 1992-04-14 1997-10-21 Itt Corporation Multi-layer fuel and vapor tube
US5694922A (en) * 1994-05-18 1997-12-09 Ballard Medical Products Swivel tube connections with hermetic seals
US5743304A (en) * 1992-04-14 1998-04-28 Itt Corporation Multi-layer fuel and vapor tube
US5769841A (en) * 1995-06-13 1998-06-23 Electroscope, Inc. Electrosurgical apparatus for laparoscopic and like procedures
US5798048A (en) * 1995-05-27 1998-08-25 Huels Aktiengesellschaft Multilayer plastic fuel filter having antistatic properties
US5812358A (en) * 1994-03-10 1998-09-22 Yazaki Industrial Chemical Co. Ltd. Sheathed steel pipe with conductive plastic resin
US5848223A (en) * 1994-05-27 1998-12-08 Steward Plastics, Inc. Double-walled flexible tubing product with helical support bead and heating conductor and apparatus and method for making
US5865218A (en) * 1992-04-14 1999-02-02 Itt Corporation Multi-layer fuel and vapor tube
US5884672A (en) * 1992-04-14 1999-03-23 Itt Industries, Inc. Multi-layer fuel and vapor tube
US5908413A (en) * 1997-10-03 1999-06-01 Scimed Life Systems, Inc. Radiopaque catheter and method of manufacture thereof
US5931201A (en) * 1996-01-29 1999-08-03 Bundy Corporation Multi-layer tubing assembly for fluid and vapor handling systems
US5934336A (en) * 1996-01-29 1999-08-10 Bundy Corporation Multi-layer tubing assembly for fluid and vapor handling systems
US5960977A (en) * 1998-05-14 1999-10-05 Itt Manufacturing Enterprises, Inc. Corrugated polymeric filler neck tubing
US6009906A (en) * 1994-06-29 2000-01-04 Salazar; Dennis R. Method and apparatus for preventing pipe damage
US6012496A (en) * 1996-01-29 2000-01-11 Hybritech Polymers Multi-layer tubing assembly for fluid and vapor handling systems
EP0974779A2 (en) * 1998-07-24 2000-01-26 Wagner International Ag Hose for conveying flowable substances
US6036682A (en) * 1997-12-02 2000-03-14 Scimed Life Systems, Inc. Catheter having a plurality of integral radiopaque bands
US6039085A (en) * 1996-01-29 2000-03-21 Bundy Corporation Multi-layer tubing assembly with foamed outer layer
WO2000004953A3 (en) * 1998-07-20 2000-04-27 Cook Urological Inc Brachytherapy device including an anti-static handle
US6077258A (en) * 1997-10-03 2000-06-20 Scimed Life Systems, Inc. Braided angiography catheter having full length radiopacity and controlled flexibility
US6130404A (en) * 1997-03-03 2000-10-10 Itt Automotive, Inc. Electro-optical removal of plastic layer bonded to a metal tube
US6155304A (en) * 1996-01-29 2000-12-05 Ti Group Automotive Systems Corp. Reinforced flexible tubing for fluid handling systems and method
US6171492B1 (en) 1999-02-04 2001-01-09 Purolator Products Company Filter for liquid fuel
US6180197B1 (en) 1998-02-13 2001-01-30 Itt Manufacturing Enterprises, Inc. Multi-layer tubing having at least one intermediate layer formed from a polyamide/polyketone alloy
US6192942B1 (en) * 1996-01-29 2001-02-27 Hybritech Polymers Multi-layer tubing assembly for fluid and vapor handling systems
US6209587B1 (en) * 1996-01-29 2001-04-03 Hybritech Polymers Multi-layer assembly for fluid and vapor handling and containment systems
WO2001034366A1 (en) 1999-11-08 2001-05-17 Parker-Hannifin Corporation Flexible plastic tubing construction having a sight glass window
US6240970B1 (en) 1999-04-01 2001-06-05 Itt Manufacturing Enterprises, Inc. Tubing for handling hydrocarbon materials and having an outer jacket layer adhered thereto
US6257281B1 (en) 1998-02-13 2001-07-10 Itt Manufacturing Enterprises, Inc. Multi-layer tubing having at least one intermediate layer formed from a polyamide alloy
US6263920B1 (en) * 1996-01-29 2001-07-24 Hybritech Polymers Multi-layer assembly for fluid and vapor handling and containment systems
US6276400B1 (en) 1999-06-08 2001-08-21 Itt Manufacturing Enterprises, Inc. Corrosion resistant powder coated metal tube and process for making the same
US6321795B1 (en) * 1992-04-14 2001-11-27 Itt Industries, Inc. Multi-layer fuel and vapor tube
US6349721B1 (en) 1999-10-04 2002-02-26 Morning Pride Manufacturing, L.L.C. Protective cover for air filter and for conduit connecting air filter to breathing mask
US6378562B1 (en) 1992-04-14 2002-04-30 Itt Industries, Inc. Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
US6494203B1 (en) 1994-08-19 2002-12-17 Ballard Medical Products Medical aspirating/ventilating closed system improvements and methods
EP1400346A1 (en) * 2001-03-22 2004-03-24 Yazaki Industrial Chemical Co. Ltd. Conductive resin coated steel pipe and extrusion molding method for the steel pipe
EP1462701A1 (en) * 2003-03-24 2004-09-29 Veritas Ag Electrically conductive multilayer pipe
US20040261877A1 (en) * 2001-12-06 2004-12-30 Steffen Buck Plastic tube, especially a pneumatic tube
US20050010157A1 (en) * 2003-06-04 2005-01-13 Gambro Lundia Ab. Joint for fluid transport lines for medical use
WO2005047748A1 (en) * 2003-11-12 2005-05-26 Huber+Suhner Ag Tube for the transport of particularly powdery materials generating an electrostatic charge
US20060041253A1 (en) * 2004-08-17 2006-02-23 Newton David W System and method for performing an electrosurgical procedure
US20060041251A1 (en) * 2004-08-17 2006-02-23 Odell Roger C Electrosurgical system and method
US20060041252A1 (en) * 2004-08-17 2006-02-23 Odell Roger C System and method for monitoring electrosurgical instruments
US20060259115A1 (en) * 2005-05-13 2006-11-16 Case Brian C Medical device delivery systems that facilitate medical device placement in the presence of ultrasonic waves
US20070215229A1 (en) * 2006-03-15 2007-09-20 Ti Automotive (Fuldabruck) Gmbh Motor Vehicle Hose
WO2008071330A2 (en) * 2006-12-11 2008-06-19 N.V. Nutricia Tube for enteral nutrition
DE102007049170A1 (en) 2007-10-13 2009-04-16 Itw Gema Gmbh Powder spray coater or powder feeder of a powder spray coater
US20090112204A1 (en) * 2007-10-26 2009-04-30 Encision, Inc. Multiple Parameter Fault Detection in Electrosurgical Instrument Shields
US20090188443A1 (en) * 2008-01-28 2009-07-30 Minick Chris A Veterinary medical tubing removal deterrent technology
US20090287189A1 (en) * 2008-05-14 2009-11-19 Becton, Dickinson And Company Optimal radiopaque catheter
WO2011091842A1 (en) * 2010-01-26 2011-08-04 Leibniz-Institut Für Plasmaforschung Und Technologie E. V. Device and method for dry-cleaning, activating, coating, modifying, and biologically decontaminating the inner walls of hoses, pipes, and other hollow bodies
WO2011092186A1 (en) * 2010-01-26 2011-08-04 Leibniz-Institut Für Plasmaforschung Und Technologie E. V. Device and method for generating an electrical discharge in hollow bodies
US8007494B1 (en) 2006-04-27 2011-08-30 Encision, Inc. Device and method to prevent surgical burns
US8251989B1 (en) 2006-06-13 2012-08-28 Encision, Inc. Combined bipolar and monopolar electrosurgical instrument and method
US8287495B2 (en) 2009-07-30 2012-10-16 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US8408421B2 (en) 2008-09-16 2013-04-02 Tandem Diabetes Care, Inc. Flow regulating stopcocks and related methods
US20130113210A1 (en) * 2010-06-09 2013-05-09 Logstor A/S Shrink sleeve for joining insulated pipes
US8650937B2 (en) 2008-09-19 2014-02-18 Tandem Diabetes Care, Inc. Solute concentration measurement device and related methods
EP2682149A3 (en) * 2012-07-02 2014-03-12 LUCHS Medizin GmbH & Co. KG Oxygen device and breathing air hose and fire safety module therefor
US8986253B2 (en) 2008-01-25 2015-03-24 Tandem Diabetes Care, Inc. Two chamber pumps and related methods
WO2015097498A1 (en) * 2013-12-23 2015-07-02 Agilent Technologies, Inc. Esd protected tubing for removing charge from lumen
NO20160094A1 (en) * 2014-01-09 2015-07-10 Arges As Device for transporting feed
WO2015120106A1 (en) * 2014-02-06 2015-08-13 Tekni-Plex, Inc. Conductive tubing
US20150260315A1 (en) * 2014-03-14 2015-09-17 Veritas Ag Hose line for a fluid
US9314294B2 (en) 2008-08-18 2016-04-19 Encision, Inc. Enhanced control systems including flexible shielding and support systems for electrosurgical applications
US9833281B2 (en) 2008-08-18 2017-12-05 Encision Inc. Enhanced control systems including flexible shielding and support systems for electrosurgical applications
US9962486B2 (en) 2013-03-14 2018-05-08 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump
US10258736B2 (en) 2012-05-17 2019-04-16 Tandem Diabetes Care, Inc. Systems including vial adapter for fluid transfer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268321A (en) * 1940-11-20 1941-12-30 Wardlyn Corp Catheter
US2671185A (en) * 1952-03-15 1954-03-02 Otto I Bloom Conductive shoe device
US2811674A (en) * 1954-05-06 1957-10-29 Smith Glen Static wire device
US2870619A (en) * 1957-01-23 1959-01-27 Fidelity Machine Company Inc Flexible hose

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268321A (en) * 1940-11-20 1941-12-30 Wardlyn Corp Catheter
US2671185A (en) * 1952-03-15 1954-03-02 Otto I Bloom Conductive shoe device
US2811674A (en) * 1954-05-06 1957-10-29 Smith Glen Static wire device
US2870619A (en) * 1957-01-23 1959-01-27 Fidelity Machine Company Inc Flexible hose

Cited By (173)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473087A (en) * 1962-05-22 1969-10-14 Raybestos Manhattan Inc Electrically conductive polytetrafluoroethylene tubing
US3166688A (en) * 1962-11-14 1965-01-19 Ronald P Rowand Polytetrafluoroethylene tubing having electrically conductive properties
US3343568A (en) * 1965-02-23 1967-09-26 Phillips Petroleum Co Extruded tubular article with clear stripe and translucent to opaque body
US3561491A (en) * 1968-04-22 1971-02-09 Dow Chemical Co Configuration for nonslip plastic bag material
US3589368A (en) * 1969-02-07 1971-06-29 David S Sheridan Postsurgical tubes with capped proximal end
US3580983A (en) * 1969-12-03 1971-05-25 Nat Catheter Corp Conductive line tube
US3659588A (en) * 1970-04-08 1972-05-02 Medtronic Inc Catheter apparatus
US3907955A (en) * 1972-08-01 1975-09-23 Aeroquip Ag Process for manufacturing electrically conductive polytetrafluoroethylene tube
US3943273A (en) * 1973-03-03 1976-03-09 Wavin B.V. Electrically conducting plastic pipe system
US3847157A (en) * 1973-06-18 1974-11-12 J Caillouette Medico-surgical tube
US3914002A (en) * 1974-04-17 1975-10-21 Sherwood Medical Ind Inc Conductive tubing and method of making same
JPS5176622A (en) * 1974-11-25 1976-07-02 Suchuaado Purasuchitsukusu Inc
US4121624A (en) * 1975-05-23 1978-10-24 Fabricated Plastics, Inc. Electrically conductive flexible tube
US4027659A (en) * 1975-11-21 1977-06-07 Krandex Corporation Radiographic opaque and conductive stripped medical tubes
DE2846351A1 (en) * 1977-10-31 1979-05-03 Wavin Bv PLASTIC PIPE MADE FROM POLYVINYL CHLORIDE
US4330811A (en) * 1978-04-03 1982-05-18 Ameron, Inc. Filament-reinforced plastic article
EP0010757B1 (en) * 1978-11-03 1982-11-10 Intermedicat GmbH Catheter having contrast strips opaque to x-rays
US4447239A (en) * 1979-03-19 1984-05-08 Dr. Eduard Fresenius Chemisch-Pharmazeutishe Industry Kg Catheter with radiographic contrast strips
US4225090A (en) * 1979-09-07 1980-09-30 Toyota Jidosha Kogyo Kabushiki Kaisha Device for painting by electrostatic powder spraying
EP0028310B1 (en) * 1979-09-24 1986-04-30 Ameron, Inc. Filament-reinforced plastic article
US4307755A (en) * 1980-01-31 1981-12-29 A. B. Chance Company Glass fiber reinforced synthetic resin tube having integral metal attachment
US4657024A (en) * 1980-02-04 1987-04-14 Teleflex Incorporated Medical-surgical catheter
WO1982000413A1 (en) * 1980-07-28 1982-02-18 Lab Abbott Improved radiopaque medical tubing
US4394705A (en) * 1982-01-04 1983-07-19 The Polymer Corporation Anti-static hose assemblies
US4469483A (en) * 1982-08-25 1984-09-04 Baxter Travenol Laboratories, Inc. Radiopaque catheter
EP0134845A1 (en) * 1983-09-21 1985-03-27 Walter Spaa Safety catheter
US5611336A (en) * 1984-07-23 1997-03-18 Ballard Medical Products, Inc. Single use medical aspirating device and method
US5277177A (en) * 1984-07-23 1994-01-11 Ballard Medical Products Single use medical aspirating device and method
US5215522A (en) * 1984-07-23 1993-06-01 Ballard Medical Products Single use medical aspirating device and method
US4773151A (en) * 1984-08-21 1988-09-27 Dunlop Limited Method of making a hose
US4632108A (en) * 1985-02-21 1986-12-30 Sherwood Medical Company Tube and material for use in laser surgery
US4728369A (en) * 1985-04-03 1988-03-01 Hammerslag Julius G Thermocouple probes
US4789005A (en) * 1985-05-17 1988-12-06 Dunlop Limited Marine growth retarding hose
US4675780A (en) * 1985-08-26 1987-06-23 The Gates Rubber Company Conductive fiber hose
EP0222137A1 (en) * 1985-10-04 1987-05-20 Basem Dr. Nashef Probe for electric treatment of hollow organs
US4981466A (en) * 1987-03-11 1991-01-01 Lumbert Richard C Medical ventilating and aspirating apparatus and methods
US5107829A (en) * 1987-03-11 1992-04-28 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US5133345A (en) * 1987-03-11 1992-07-28 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US4967743A (en) * 1987-03-11 1990-11-06 Ballard Medical Products Neonatal closed system for involuntary aspiration and ventilation, and method
US4834726A (en) * 1987-03-11 1989-05-30 Ballard Medical Products Medical ventilating and aspirating apparatus and methods
US4938741A (en) * 1988-11-01 1990-07-03 Ballard Medical Products Medical ventilating and aspirating apparatus and methods
US5014753A (en) * 1988-12-02 1991-05-14 Textilver Sa Radiant heat resistant flexible tube
US5034157A (en) * 1990-03-16 1991-07-23 Itt Corporation Injection moldable composite
US5065754A (en) * 1990-06-06 1991-11-19 Ballard Medical Products Aspirating catheter tube inserter
US5431638A (en) * 1991-04-10 1995-07-11 United States Surgical Corporation Energy dissipation device
US5375626A (en) * 1991-11-08 1994-12-27 Fears; Clois D. Method of and lining for water intake pipes
US5383087A (en) * 1992-04-14 1995-01-17 Itt Corporation Multi-layer fuel and vapor tube
US5884672A (en) * 1992-04-14 1999-03-23 Itt Industries, Inc. Multi-layer fuel and vapor tube
US6321795B1 (en) * 1992-04-14 2001-11-27 Itt Industries, Inc. Multi-layer fuel and vapor tube
US6378562B1 (en) 1992-04-14 2002-04-30 Itt Industries, Inc. Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
US5284184A (en) * 1992-04-14 1994-02-08 Itt Corporation Corrugated multi-layer tubing having at least one fluoroplastic layer
US5524673A (en) * 1992-04-14 1996-06-11 Itt Corporation Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
US6170534B1 (en) 1992-04-14 2001-01-09 Itt Industries, Inc. Multi-layer fuel and vapor tube
US6896005B2 (en) 1992-04-14 2005-05-24 Itt Manufacturing Enterprises, Inc. Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
US5996642A (en) * 1992-04-14 1999-12-07 Itt Industries, Inc. Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
US20050173011A1 (en) * 1992-04-14 2005-08-11 Itt Industries, Inc. Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids
US5884671A (en) * 1992-04-14 1999-03-23 Itt Industries, Inc. Multi-layer fuel and vapor tube
US5865218A (en) * 1992-04-14 1999-02-02 Itt Corporation Multi-layer fuel and vapor tube
US5678611A (en) * 1992-04-14 1997-10-21 Itt Corporation Multi-layer fuel and vapor tube
US5743304A (en) * 1992-04-14 1998-04-28 Itt Corporation Multi-layer fuel and vapor tube
US5460771A (en) * 1992-10-16 1995-10-24 Itt Corporation Process for producing corrugated multi-layer tubing having layers of differing plastic characteristics
US5812358A (en) * 1994-03-10 1998-09-22 Yazaki Industrial Chemical Co. Ltd. Sheathed steel pipe with conductive plastic resin
US5638871A (en) * 1994-05-02 1997-06-17 Itt Corporation Extruded multiple plastic layer coating bonded to a metal tube and process for making the same
US5520223A (en) * 1994-05-02 1996-05-28 Itt Industries, Inc. Extruded multiple plastic layer coating bonded to the outer surface of a metal tube having an optical non-reactive inner layer and process for making the same
US5771940A (en) * 1994-05-02 1998-06-30 Itt Corporation Extruded multiple plastic layer coating bonded to a metal tube and process for making the same
US6245183B1 (en) 1994-05-02 2001-06-12 Itt Manufacturing Enterprises, Inc. Process for manufacturing tubing having a metal layer with an external surface overlaying by multiple plastic layers bonded thereto
US5867883A (en) * 1994-05-02 1999-02-09 Itt Industries, Inc. Extruded multiple plastic layer coating bonded to the outer surface of a metal tube having an optional non-reactive inner layer and process for making the same
US6003562A (en) * 1994-05-02 1999-12-21 Itt Corporation Extruded multiple plastic layer coating bonded to a metal tube and process for making the same
US5590691A (en) * 1994-05-02 1997-01-07 Itt Corporation Extruded multiple plastic layer coating bonded to a metal tube
US5694922A (en) * 1994-05-18 1997-12-09 Ballard Medical Products Swivel tube connections with hermetic seals
US5848223A (en) * 1994-05-27 1998-12-08 Steward Plastics, Inc. Double-walled flexible tubing product with helical support bead and heating conductor and apparatus and method for making
US5637168A (en) * 1994-05-27 1997-06-10 Steward Plastics, Inc. Apparatus and method for making flexible tubing with helically wound heating conductor
US5454061A (en) * 1994-05-27 1995-09-26 Steward Plastics, Inc. Apparatus and method for making flexible tubing with helically wound heating conductor
US6009906A (en) * 1994-06-29 2000-01-04 Salazar; Dennis R. Method and apparatus for preventing pipe damage
US5538043A (en) * 1994-06-29 1996-07-23 Salazar; Dennis R. Method and apparatus for preventing pipe damage
US6494203B1 (en) 1994-08-19 2002-12-17 Ballard Medical Products Medical aspirating/ventilating closed system improvements and methods
EP0707169A1 (en) * 1994-10-15 1996-04-17 PAGUAG GmbH & Co. Hose having an electrical conductive inner layer
US5566720A (en) * 1995-01-10 1996-10-22 Itt Corporation Elongated fuel and vapor tube having multiple layers and method of making the same
US5798048A (en) * 1995-05-27 1998-08-25 Huels Aktiengesellschaft Multilayer plastic fuel filter having antistatic properties
US5769841A (en) * 1995-06-13 1998-06-23 Electroscope, Inc. Electrosurgical apparatus for laparoscopic and like procedures
US6155304A (en) * 1996-01-29 2000-12-05 Ti Group Automotive Systems Corp. Reinforced flexible tubing for fluid handling systems and method
US5934336A (en) * 1996-01-29 1999-08-10 Bundy Corporation Multi-layer tubing assembly for fluid and vapor handling systems
US6012496A (en) * 1996-01-29 2000-01-11 Hybritech Polymers Multi-layer tubing assembly for fluid and vapor handling systems
US6039085A (en) * 1996-01-29 2000-03-21 Bundy Corporation Multi-layer tubing assembly with foamed outer layer
US5931201A (en) * 1996-01-29 1999-08-03 Bundy Corporation Multi-layer tubing assembly for fluid and vapor handling systems
US6192942B1 (en) * 1996-01-29 2001-02-27 Hybritech Polymers Multi-layer tubing assembly for fluid and vapor handling systems
US6209587B1 (en) * 1996-01-29 2001-04-03 Hybritech Polymers Multi-layer assembly for fluid and vapor handling and containment systems
US6263920B1 (en) * 1996-01-29 2001-07-24 Hybritech Polymers Multi-layer assembly for fluid and vapor handling and containment systems
US6660350B1 (en) 1997-03-03 2003-12-09 Itt Automotive, Inc. Electro-optical removal of plastic layer bonded to a metal tube
US6130404A (en) * 1997-03-03 2000-10-10 Itt Automotive, Inc. Electro-optical removal of plastic layer bonded to a metal tube
US6077258A (en) * 1997-10-03 2000-06-20 Scimed Life Systems, Inc. Braided angiography catheter having full length radiopacity and controlled flexibility
US5908413A (en) * 1997-10-03 1999-06-01 Scimed Life Systems, Inc. Radiopaque catheter and method of manufacture thereof
US6036682A (en) * 1997-12-02 2000-03-14 Scimed Life Systems, Inc. Catheter having a plurality of integral radiopaque bands
US6180197B1 (en) 1998-02-13 2001-01-30 Itt Manufacturing Enterprises, Inc. Multi-layer tubing having at least one intermediate layer formed from a polyamide/polyketone alloy
US6257281B1 (en) 1998-02-13 2001-07-10 Itt Manufacturing Enterprises, Inc. Multi-layer tubing having at least one intermediate layer formed from a polyamide alloy
US5960977A (en) * 1998-05-14 1999-10-05 Itt Manufacturing Enterprises, Inc. Corrugated polymeric filler neck tubing
US6210315B1 (en) 1998-07-20 2001-04-03 Cook Urological Inc. Brachytherapy device including an anti-static handle
AU762130B2 (en) * 1998-07-20 2003-06-19 Cook Urological Inc. Brachytherapy device including an anti-static handle
WO2000004953A3 (en) * 1998-07-20 2000-04-27 Cook Urological Inc Brachytherapy device including an anti-static handle
EP0974779A2 (en) * 1998-07-24 2000-01-26 Wagner International Ag Hose for conveying flowable substances
EP0974779A3 (en) * 1998-07-24 2001-02-07 Wagner International Ag Hose for conveying flowable substances
US6171492B1 (en) 1999-02-04 2001-01-09 Purolator Products Company Filter for liquid fuel
US6240970B1 (en) 1999-04-01 2001-06-05 Itt Manufacturing Enterprises, Inc. Tubing for handling hydrocarbon materials and having an outer jacket layer adhered thereto
US6276400B1 (en) 1999-06-08 2001-08-21 Itt Manufacturing Enterprises, Inc. Corrosion resistant powder coated metal tube and process for making the same
US6528125B1 (en) 1999-06-08 2003-03-04 Itt Manufacturing Enterprises, Inc. Corrosion resistant powder coated metal tube and process for making the same
US6349721B1 (en) 1999-10-04 2002-02-26 Morning Pride Manufacturing, L.L.C. Protective cover for air filter and for conduit connecting air filter to breathing mask
US6354331B1 (en) 1999-11-08 2002-03-12 Parker-Hannifin Corp. Flexible plastic tubing construction having a sight glass window
WO2001034366A1 (en) 1999-11-08 2001-05-17 Parker-Hannifin Corporation Flexible plastic tubing construction having a sight glass window
EP1400346A4 (en) * 2001-03-22 2005-01-05 Yazaki Ind Chem Co Ltd Conductive resin coated steel pipe and extrusion molding method for the steel pipe
EP1400346A1 (en) * 2001-03-22 2004-03-24 Yazaki Industrial Chemical Co. Ltd. Conductive resin coated steel pipe and extrusion molding method for the steel pipe
US20040261877A1 (en) * 2001-12-06 2004-12-30 Steffen Buck Plastic tube, especially a pneumatic tube
US7040351B2 (en) * 2001-12-06 2006-05-09 Festo Ag & Co. Plastic tube, especially a pneumatic tube
EP1462701A1 (en) * 2003-03-24 2004-09-29 Veritas Ag Electrically conductive multilayer pipe
US20040191452A1 (en) * 2003-03-24 2004-09-30 Veritas Ag Multilayered, electrically conductive line
US20050010157A1 (en) * 2003-06-04 2005-01-13 Gambro Lundia Ab. Joint for fluid transport lines for medical use
US7291123B2 (en) 2003-06-04 2007-11-06 Gambro Lundia Joint for fluid transport lines for medical use
US7785284B2 (en) 2003-06-04 2010-08-31 Gambro Lundia Ab Joint for fluid transport lines for medical use
US20080004562A1 (en) * 2003-06-04 2008-01-03 Gambro Lundia Ab Joint for fluid transport lines for medical use
WO2005047748A1 (en) * 2003-11-12 2005-05-26 Huber+Suhner Ag Tube for the transport of particularly powdery materials generating an electrostatic charge
US20060041251A1 (en) * 2004-08-17 2006-02-23 Odell Roger C Electrosurgical system and method
US20060041252A1 (en) * 2004-08-17 2006-02-23 Odell Roger C System and method for monitoring electrosurgical instruments
US8758336B2 (en) 2004-08-17 2014-06-24 Encision, Inc. System and method for monitoring electrosurgical systems
US7422589B2 (en) 2004-08-17 2008-09-09 Encision, Inc. System and method for performing an electrosurgical procedure
US20060041253A1 (en) * 2004-08-17 2006-02-23 Newton David W System and method for performing an electrosurgical procedure
US7465302B2 (en) 2004-08-17 2008-12-16 Encision, Inc. System and method for performing an electrosurgical procedure
US20060259115A1 (en) * 2005-05-13 2006-11-16 Case Brian C Medical device delivery systems that facilitate medical device placement in the presence of ultrasonic waves
US20070215229A1 (en) * 2006-03-15 2007-09-20 Ti Automotive (Fuldabruck) Gmbh Motor Vehicle Hose
US7861746B2 (en) 2006-03-15 2011-01-04 TI Automotive (Fuldabruck) Germany Motor vehicle hose
US8007494B1 (en) 2006-04-27 2011-08-30 Encision, Inc. Device and method to prevent surgical burns
US8251989B1 (en) 2006-06-13 2012-08-28 Encision, Inc. Combined bipolar and monopolar electrosurgical instrument and method
WO2008071330A2 (en) * 2006-12-11 2008-06-19 N.V. Nutricia Tube for enteral nutrition
RU2463009C2 (en) * 2006-12-11 2012-10-10 Н.В. Нутриция Tube for enteral feeding
WO2008071330A3 (en) * 2006-12-11 2008-11-13 Nutricia Nv Tube for enteral nutrition
EP1935355A1 (en) * 2006-12-11 2008-06-25 N.V. Nutricia Tube for enteral nutrition
DE102007049170A1 (en) 2007-10-13 2009-04-16 Itw Gema Gmbh Powder spray coater or powder feeder of a powder spray coater
US9757183B2 (en) 2007-10-26 2017-09-12 Encision Inc. Multiple parameter fault detection in electrosurgical instrument shields
US9254165B2 (en) 2007-10-26 2016-02-09 Encision, Inc. Multiple parameter fault detection in electrosurgical instrument shields
US8460284B2 (en) 2007-10-26 2013-06-11 Encision, Inc. Multiple parameter fault detection in electrosurgical instrument shields
US20090112204A1 (en) * 2007-10-26 2009-04-30 Encision, Inc. Multiple Parameter Fault Detection in Electrosurgical Instrument Shields
US8986253B2 (en) 2008-01-25 2015-03-24 Tandem Diabetes Care, Inc. Two chamber pumps and related methods
US20090188440A1 (en) * 2008-01-28 2009-07-30 Mark Anderson Lick deterrent tubing
US8061307B2 (en) * 2008-01-28 2011-11-22 Mark Anderson Lick deterrent tubing
US20090188443A1 (en) * 2008-01-28 2009-07-30 Minick Chris A Veterinary medical tubing removal deterrent technology
US20090287189A1 (en) * 2008-05-14 2009-11-19 Becton, Dickinson And Company Optimal radiopaque catheter
US9833281B2 (en) 2008-08-18 2017-12-05 Encision Inc. Enhanced control systems including flexible shielding and support systems for electrosurgical applications
US9314294B2 (en) 2008-08-18 2016-04-19 Encision, Inc. Enhanced control systems including flexible shielding and support systems for electrosurgical applications
US8408421B2 (en) 2008-09-16 2013-04-02 Tandem Diabetes Care, Inc. Flow regulating stopcocks and related methods
US8448824B2 (en) 2008-09-16 2013-05-28 Tandem Diabetes Care, Inc. Slideable flow metering devices and related methods
US8650937B2 (en) 2008-09-19 2014-02-18 Tandem Diabetes Care, Inc. Solute concentration measurement device and related methods
US11285263B2 (en) 2009-07-30 2022-03-29 Tandem Diabetes Care, Inc. Infusion pump systems and methods
US8758323B2 (en) 2009-07-30 2014-06-24 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US8926561B2 (en) 2009-07-30 2015-01-06 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US8287495B2 (en) 2009-07-30 2012-10-16 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US11135362B2 (en) 2009-07-30 2021-10-05 Tandem Diabetes Care, Inc. Infusion pump systems and methods
US9211377B2 (en) 2009-07-30 2015-12-15 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US8298184B2 (en) 2009-07-30 2012-10-30 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
WO2011092186A1 (en) * 2010-01-26 2011-08-04 Leibniz-Institut Für Plasmaforschung Und Technologie E. V. Device and method for generating an electrical discharge in hollow bodies
WO2011091842A1 (en) * 2010-01-26 2011-08-04 Leibniz-Institut Für Plasmaforschung Und Technologie E. V. Device and method for dry-cleaning, activating, coating, modifying, and biologically decontaminating the inner walls of hoses, pipes, and other hollow bodies
US9192040B2 (en) 2010-01-26 2015-11-17 Leibniz-Institut Fuer Plasmaforschung Und Technologie E.V., Inp Greifswald Device and method for generating an electrical discharge in hollow bodies
US20130113210A1 (en) * 2010-06-09 2013-05-09 Logstor A/S Shrink sleeve for joining insulated pipes
US10258736B2 (en) 2012-05-17 2019-04-16 Tandem Diabetes Care, Inc. Systems including vial adapter for fluid transfer
EP2682149A3 (en) * 2012-07-02 2014-03-12 LUCHS Medizin GmbH & Co. KG Oxygen device and breathing air hose and fire safety module therefor
US9962486B2 (en) 2013-03-14 2018-05-08 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump
CN105793703A (en) * 2013-12-23 2016-07-20 安捷伦科技有限公司 ESD protected tubing for removing charge from lumen
WO2015097498A1 (en) * 2013-12-23 2015-07-02 Agilent Technologies, Inc. Esd protected tubing for removing charge from lumen
US10254257B2 (en) 2013-12-23 2019-04-09 Agilent Technologies, Inc. ESD protected tubing for removing charge from lumen
CN105793703B (en) * 2013-12-23 2019-10-18 安捷伦科技有限公司 For removing the ESD protection pipe of charge from chamber
NO20160094A1 (en) * 2014-01-09 2015-07-10 Arges As Device for transporting feed
NO337255B1 (en) * 2014-01-09 2016-02-29 Arges As Device for transporting feed
NO342880B1 (en) * 2014-01-09 2018-08-20 Arges As Use of feeding tube, feeding tube for transport of feed
WO2015120106A1 (en) * 2014-02-06 2015-08-13 Tekni-Plex, Inc. Conductive tubing
US9506584B2 (en) * 2014-03-14 2016-11-29 Veritas Ag Hose line for a fluid
US20150260315A1 (en) * 2014-03-14 2015-09-17 Veritas Ag Hose line for a fluid

Similar Documents

Publication Publication Date Title
US3070132A (en) Non-sparking medico-surgical tubes
US3042045A (en) Medico-surgical tubes having integral connectors formed in their ends
US4105732A (en) Radiographic opaque and conductive striped medical tubes
US2857915A (en) X-ray catheter
US6663595B2 (en) Peelable PTFE sheaths and methods for manufacture of same
US3529633A (en) X-ray opaque tubing having a transparent stripe
US4690138A (en) Marking system for tube placement
DE69729430T2 (en) Endotracheal pressure monitoring and medication system
US3618614A (en) Nontoxic radiopaque multiwall medical-surgical tubings
US3605750A (en) X-ray tip catheter
US3964488A (en) Tracheal tube
AU644638B2 (en) Reinforced medico-surgical tubes
BR9804979A (en) Cannula comprising a tubular element.
GB2503357A (en) Foamed wall breathing tube
JPS61193655A (en) Tube and material for laser surgical operation
US20150122251A1 (en) Kink resistant intubation device
JP2020512887A (en) Medical device with visible and tactile indicators
Mattucci et al. The prevention of fire during oropharyngeal electrosurgery
US3042044A (en) Seamless extruded plastic rectal tubes
Adams Breathing system disconnections
Fried et al. Laser resistant stainless steel endotracheal tube: experimental and clinical evaluation
Wöllmer et al. Endotracheal tube fires still happen–A short overview
Featherstone et al. The evolution of the polyvinyl chloride endotracheal tube
Mirakhur Airway obstruction with cuffed armoured tracheal tubes
Adams et al. Bystander cricothyroidotomy performed with an improvised airway