US3895632A - Trocar catheter - Google Patents

Trocar catheter Download PDF

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Publication number
US3895632A
US3895632A US44149474A US3895632A US 3895632 A US3895632 A US 3895632A US 44149474 A US44149474 A US 44149474A US 3895632 A US3895632 A US 3895632A
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Prior art keywords
catheter
connector
plug
inlet
chamber
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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
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Leopold Plowiecki
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Technological Supply SA
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Technological Supply SA
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/16Check valves with flexible valve members with tongue-shaped laminae
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/24Check- or non-return valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/062Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with a catheter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0626Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with other surgical instruments, e.g. endoscope, trocar
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/24Check- or non-return valves
    • A61M2039/242Check- or non-return valves designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/24Check- or non-return valves
    • A61M2039/2433Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22Valves or arrangement of valves
    • A61M39/24Check- or non-return valves
    • A61M2039/2433Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
    • A61M2039/244Hinged closure member, e.g. flap valve
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7879Resilient material valve
    • Y10T137/7888With valve member flexing about securement

Abstract

The catheter of a trocar is provided with a moulded connector having a chamber in which a hollow cylindrical valve is rotatable. A flexible extension of the valve serves to obturate an inlet to the chamber and the insertion of a needle serves to deflect the extension so that it can pass through the inlet and out through an opposite outlet and thence through the attached catheter.

Description

United States Patent Plowiecki July 22, 1975 [54] TROCAR CATHETER 3,416,567 (\gon Dardlel ct a1. 128/274 X 3,525,363 1 ore eta 251/309 X 1 lnvemorl Leolmld Plwmkh Mommorency 3,774,604 11/1973 Danielsson 128/2144 France T 1 1 1 [73] Asslgnee it s z Supp y S A Primary Exammer-Dalton L. Truluck Attorney, Agent, or Firm-Anthony A. OBrien [22] Filed: Feb. 11, 1974 [21] Appl. No.: 441,494

[57] ABSTRACT [30] Foreign Application Priority Data Mar 6 1973 France 07873 The catheter of a trocar is provided with a moulded connector having a chamber in which a hollow cylin- [57] U S Cl 128/2144, l28/274 128/347, drical valve is rotatable. A flexible extension of the 7 137/525 251/309 valve serves to obturate an inlet to the chamber and [51] Int C12 L 5/00 the insertion of a needle serves to deflect the exten- [58] Fie'ld 347 274 sion so that it can pass through the inlet and out ig through an opposite outlet and thence through the at tached catheter.

[56] References Cited UNITED STATES PATENTS 6 Claims, 4 Drawing Figures 3,144,177 8/1964 Cookson 137/5253 X PATENTEDJULZZ I975 3.895532 FIGJ 3 7, 30

race/ta cameras BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to terminal connector for a catheter used for example for trocars for the administration by a veinous or arterial path liquids such as blood. The invention also relates to a catheter including such a connector and a trocar including such a catheter.

2. Summary of the Prior Art Trocars of earlier construction comprise a synthetic resin catheter and a metal perfusion needle. In order to use such a trocar. it is introduced into a vein or an artery, the needle is then withdrawn from the catheter, the latter remaining inserted in the vein or artery and the terminal end of the catheter is then connected to a supply reservoir of liquid to be administered. Such a trocar has various disadvantages: in the case of renal dialysis. the main disadvantage is that at each puncture of the vein or the artery. the blood flows between the time when the needle is retracted and the time when the catheter is connected by its outer terminal end to the supply reservoir. In the case of renal dialysis. the fact that this loss of blood is repeated each week risks the substantial weakening of the patient.

SUMMARY OF THE INVENTION According to a preferred method for carrying out the invention, the terminal connector of the catheter comprises a transverse chamber having only one liquid inlet and only one opposed liquid outlet and in which cham her an obturating member is rotatably mounted. This member is extended by a small tongue constituting an obturating part which in one position of the member that is the operative position. abuts against the wall of the chamber at the inlet side so as to prevent the re verse flow ofliquid through the inlet and leaves free the outlet in the wall of the chamber opposite the inlet. This small tongue or other extension is sufficiently flexible to be capable of being deflected by liquid passing through the inlet or by a member introduced into the inlet when the tongue is in thisoperative position. The obturating member is so shaped that by rotation through one-quarter of a turn in one sense or the other with respect to the operative position, it reaches an intermediate position in which it leaves a free passage through the chamber.

Further according to the present invention there is provided in a terminal connector for a catheter having a chamber transverse to the catheter longitudinal axis with a single inlet for liquid and a single opposed outlet for liquid and in which an obturating plug is rotatable to control such inlet and outlet. 21. flexible extension to the plug disposed to obturate such inlet in one position of the plug and to prevent in this position any reverse flow through the inlet. the plug being rotatable to an intermediate position permitting free passage between such inlet and outlet through the chamber.

The terminal connector of the trocar catheter according to the invention enables the disadvantage referred to. to be overcome. It enables, in fact, the prevention of flow of blood from the vein or the artery of the patient once the needle has been withdrawn from the catheter and it then enables a normal perfusion after the terminal connector of the catheter has been connected to the supply reservoir.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a longitudinal section of a catheter of a trocar provided with a terminal connector of which an obturating plug in a valve chamber is in an operative position;

FIG. 2 is a section similar to FIG. 1 but in which a flexible or other extension has been deflected by a perfusion needle introduced into the terminal connector and into the catheter;

FIG. 3 is a perspective view of the obturating plug; and

FIG. 4 is a section of the terminal connector on line IVIV of FIG. 1, the plug being turned through a quarter of a turn so as to be in an intermediate position.

In these Figures the common members are designated by the same reference numerals.

The trocar of FIG. 1 includes a terminal connector 10 moulded onto an end portion of a catheter 12, the other end portion 14 of the catheter being chamfered or otherwise shaped so as to facilitate introduction into a vein or artery. The terminal connector 10 can be connected to a supply system by an end portion 16.

The terminal connector 10 comprises a transverselyextending chamber 18 in which is rotatably mounted a plug 20 for obturating or blocking an inlet 22 of this chamber. The latter also comprises an outlet 24 opposite to the inlet 22.

The plug 20 shown separately in FIG. 3 is a hollow cylinder extended by a small flexible tongue 26 which can be folded so as to lie parallel to the bottom of the chamber (see FIG. 2). The upper end of the hollow cylinder forming the plug terminates in a head 28 having a slot 30 similar to the slot of the head of a screw. The plug 20 is rotatable by a cap 32 forming a control button, preferably in the form of an arrow-headed button enabling the ready identification of possible positions of the plug.

The cap 32 comprises an internal ridge 34 which cooperates with the slot 30 of the head of the plug in order to turn the latter in the chamber.

The cap 32 is snapped on the terminal connector 10 with the aid of an internal annular groove 36 formed in the interior of the cap and which cooperates with an annular ridge 38 provided on the external surface of that part of the connector defining the chamber.

The cap 32 thus enables the plug 20 to be rotated and to prevent the latter from leaving the chamber 18.

In FIG. 1, the plug 20 is in an operative position, the small tongue 26 blocking the inlet 22 of the chamber. The small tongue thus prevents any return flow of the liquid towards the supply, but is sufficiently flexible to be deflected to lie parallel to the base of the cylinder constituting the plug under the action either of the pressure force exerted by the supply liquid or by a needle 40 which is introduced into the catheter.

In FIG. 2 the perfusion needle 40 is introduced into the terminal connector 10 and into the catheter 12, the needle terminating at a point 42 which extends beyond the chamfered end 14 of the catheter 12 so that when the trocar is introduced into a vien or artery, the introduction of the needle prepares for the introduction of the catheter. The needle 40 comprises at its opposite end a ferrule or bushing 44 (shown only in part) which seals with the end portion 16 of the terminal connector 10. The tongue 26 is raised towards the lower rim of the cylinder constituting the plug when the needle 40 is introduced.

In FIG. 4 the plug is in an intermediate position, the plug having been turned through a quarter of a turn in one sense or the other with respect to the position of FIG. 1. The inlet 22 of the chamber 18 is not blocked and the same applies to the outlet 24 which is not'visible in this section.

The plug thus leaves the passage free either for the perfusion liquid or for a needle.

A trocar equipped with a terminal connector for the catheter thereof in accordance with the invention is used in the following manner: Before use, the plug is turned to place it in the operative position shown in FIG. 1. The needle is then inserted into the trocar, the assembly introduced into the vein or the artery and then the needle is withdrawn from the catheter. H

Because of the resilience of the tongue and the pressure of the veinous liquid, the tongue 26 moves to block the inlet 22 of the chamber 18 and thus to prevent any reflux of blood of the patient. The terminal connector is then connected through the catheter end portion 16 to the supply system and, under the action of the pressure force exerted by the supply liquid, the tongue 26 is again deflected and leaves the passage free for liquid flow. If it is desired to permit a larger flow for perfusion, the plug can be turned through a quarter turn to the intermediate position of FIG. 4.

The cost of manufacture of the terminal connector of the catheter in accordance with the invention is sufficiently competitive that it can be employed for trocars which are used only once.

The trocar is made by moulding or by cementing of the terminal connector onto a flexible tube with a chamfered end, the synthetic material being preferably the same for the connector and for the tube.

The plug 20 is made ofa synthetic, flexible and resilient material so that the tongue 26 can readily be deflectedand will return on its own accord into the normal position, that is to say into the extension of the generating lines of the cylinder forming the plug, under the action of its own resilience.

In orderto facilitate the rotation of the plug 20 in the chamber 18, it is preferable to use a lubricant, but this should not mix with the supply liquid and so contaminate it.

The method of carrying out the invention as hereinbefore descriged is not to be considered as limiting, so that any variation or modification having the characteristics essential to the invention will not depart from the scope of the latter.

I claim:

1. An intravenous catheter and terminal connector therefor having a longitudinal axis, said connector having a chamber transversely disposed to the longitudinal axis, said chamber having a single inlet in one wall of the chamber and a single outlet in an opposite wall of the chamber, and an obturating plug rotatably disposed in said chamber to control the inlet and outlet, the improvement comprising a flexible extension integrally formed on a lower portion of said plug and being rotated therewith between operative and intermediate positions,

said flexible extension being rotated with said plug to its intermediate position between the said one wall and the said opposite wall of the chamber whereby a liquid may flow through the chamber,

said flexible extension abutting said one wall to cover the inlet when in its operative position to prevent a reverse flow of liquid through the inlet, said -flexi-.,.

ble extension being deflected away from said one wall by liquid passing through the inlet and by a member inserted through the inlet, and

said inlet and outlet being in alignment with said longitudinal axis whereby the member may be inserted therethrough and protrude through the catheter.

2. An intravenous catheter and terminal connector therefor according to claim 1, wherein the connector is integrally moulded onto the catheter.

3. An intravenous catheter and terminal connector therefor to claim 1, wherein the connector has an end portion adjacent said inlet and a bushing seals said end portion, and wherein said member comprises a perfusion needle centrally mounted in said bushing so as to be connectable to a liquid supply.

4. An intravenous catheter and terminal connector therefor according to claim 1 wherein the obturating plug comprises a hollow cylinder of flexible resilient material including a head with a transverse slot, the end of the cylinder opposite to the head carrying said flexible extension which takes the form of a prolongation of a part of the cylinder wall.

5. An intravenous catheter and terminal connector therefore to claim 4, comprising a cap mounted on the hollow cylinder, said cap having a ridge engaging in the slot of the plug head to rotate the plug.

6. An intravenous catheter and terminal connector therefor to claim 5, wherein the cap has an internal groove and the cylinder has an external ridge, the groove and the ridge being so disposed that when the cap is forced on to the cylinder, the ridge snaps into the groove to retain the cap on the cylinder.

Claims (6)

1. An intravenous catheter and terminal connector therefor having a longitudinal axis, said connector having a chamber transversely disposed to the longitudinal axis, said chamber having a single inlet in one wall of the chamber and a single outlet in an opposite wall of the chamber, and an obturating plug rotatably disposed in said chamber to control the inlet and outlet, the improvement comprising a flexible extension integrally formed on a lower portion of said plug and being rotated therewith between operative and intermediate positions, said flexible extension being rotated with said plug to its intermediate position between the said one wall and the said opposite wall of the chamber whereby a liquid may flow through the chamber, said flexible extension abutting said one wall to cover the inlet when in its operative position to prevent a reverse flow of liquid through the inlet, said flexible extension being deflected away from said one wall by liquid passing through the inlet and by a member inserted through the inlet, and said inlet and outlet being in alignment with said longitudinal axis whereby the member may be inserted therethrough and protrude through the catheter.
2. An intravenous catheter and terminal connector therefor according to claim 1, wherein the connector is integrally moulded onto the catheter.
3. An intravenous catheter and terminal connector therefor to claim 1, wherein the connector has an end portion adjacent said inlet and a bushing seals said end portion, and wherein said member comprises a perfusion needle centrally mounted in said bushing so as to be connectable to a liquid supply.
4. An intravenous catheter and terminal connector therefor according to claim 1, wherein the obturating plug comprises a hollow cylinder of flexible resilient material including a head with a transversE slot, the end of the cylinder opposite to the head carrying said flexible extension which takes the form of a prolongation of a part of the cylinder wall.
5. An intravenous catheter and terminal connector therefore to claim 4, comprising a cap mounted on the hollow cylinder, said cap having a ridge engaging in the slot of the plug head to rotate the plug.
6. An intravenous catheter and terminal connector therefor to claim 5, wherein the cap has an internal groove and the cylinder has an external ridge, the groove and the ridge being so disposed that when the cap is forced on to the cylinder, the ridge snaps into the groove to retain the cap on the cylinder.
US3895632A 1973-03-06 1974-02-11 Trocar catheter Expired - Lifetime US3895632A (en)

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FR7307873A FR2220729B1 (en) 1973-03-06 1973-03-06

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Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945603A (en) * 1975-04-17 1976-03-23 Fts Systems Inc. Valve particularly adapted for use in vacuum work
US4072161A (en) * 1975-09-17 1978-02-07 Rockwell International Corporation Sealing member for valve stems
US4096860A (en) * 1975-10-08 1978-06-27 Mclaughlin William F Dual flow encatheter
US4217895A (en) * 1977-06-03 1980-08-19 Terumo Corporation Intravascular catheter
US4245635A (en) * 1979-01-29 1981-01-20 Jelco Laboratories Catheter assembly for intermittent intravenous use
US4454887A (en) * 1981-04-15 1984-06-19 Krueger Christian Medical instruments for introduction into the respiratory tract of a patient
US4535773A (en) * 1982-03-26 1985-08-20 Inbae Yoon Safety puncturing instrument and method
US4944728A (en) * 1988-10-17 1990-07-31 Safe Medical Devices, Inc. Intravenous catheter placement device
US4954130A (en) * 1988-01-20 1990-09-04 William P. Waters Catheter/heparin lock and method of using same
US5098394A (en) * 1990-05-31 1992-03-24 Luther Ronald B Biased shut off valve assembly for needle and catheter
US5098393A (en) * 1988-05-31 1992-03-24 Kurt Amplatz Medical introducer and valve assembly
US5226426A (en) * 1990-12-18 1993-07-13 Inbae Yoon Safety penetrating instrument
US5261895A (en) * 1991-09-26 1993-11-16 Stryker Corporation Apparatus for guiding surgical instruments into a surgical site and blocking escape of fluids from the site
US5300046A (en) * 1992-03-30 1994-04-05 Symbiosis Corporation Thoracentesis sheath catheter assembly
US5389080A (en) * 1990-07-26 1995-02-14 Yoon; Inbae Endoscopic portal for use in endoscopic procedures and methods therefor
US5401247A (en) * 1990-12-18 1995-03-28 Yoon; Inbae Safety penetrating instrument
US5429609A (en) * 1990-07-26 1995-07-04 Yoon; Inbae Endoscopic portal for use in endoscopic procedures and methods therefor
US5458579A (en) * 1991-12-31 1995-10-17 Technalytics, Inc. Mechanical trocar insertion apparatus
US5538509A (en) * 1994-01-31 1996-07-23 Richard-Allan Medical Industries, Inc. Trocar assembly
US5676657A (en) * 1990-07-26 1997-10-14 Yoon; Inbae Endoscopic portal having multiluminal trumpet valve
US5704919A (en) * 1992-12-04 1998-01-06 Travenol Laboratories (Israel) Ltd. Intravenous cannula assembly
US5743883A (en) * 1995-06-07 1998-04-28 Visconti; Peter L. Thoracentesis catheter instruments having self-sealing valves
US6083203A (en) * 1990-07-26 2000-07-04 Yoon; Inbae Endoscopic portal
US6217556B1 (en) 1998-03-19 2001-04-17 Allegiance Corporation Drainage catheter
WO2004009171A1 (en) * 2002-07-16 2004-01-29 Georg-August-Universität Göttingen Venous catheter provided with a t-shaped connecting fitting
US7488130B2 (en) 2007-02-01 2009-02-10 Sanford, L.P. Seal assembly for retractable instrument
US20090281525A1 (en) * 2008-05-08 2009-11-12 Becton, Dickinson And Company Push-button blood control
US20090281481A1 (en) * 2008-05-12 2009-11-12 Becton, Dickinson And Company Intravenous catheter blood control device
US20090287154A1 (en) * 2008-05-19 2009-11-19 Becton, Dickinson And Company Radially compressible blood control valve
US7850382B2 (en) 2007-01-18 2010-12-14 Sanford, L.P. Valve made from two materials and writing utensil with retractable tip incorporating same
US8221012B2 (en) 2008-11-07 2012-07-17 Sanford, L.P. Retractable instruments comprising a one-piece valve door actuating assembly
US8226312B2 (en) 2008-03-28 2012-07-24 Sanford, L.P. Valve door having a force directing component and retractable instruments comprising same
US8393814B2 (en) 2009-01-30 2013-03-12 Sanford, L.P. Retractable instrument having a two stage protraction/retraction sequence
WO2016178222A1 (en) * 2015-05-07 2016-11-10 Malka Michel Catheter with a safety faucet-valve

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US4000739A (en) * 1975-07-09 1977-01-04 Cordis Corporation Hemostasis cannula
US4361138A (en) * 1980-03-31 1982-11-30 Olympus Optical Company Ltd. Ventilation/feedwater switching apparatus for endoscope
EP2574830A1 (en) * 2011-09-30 2013-04-03 Robert Bosch GmbH Valve for a fluid

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US3144177A (en) * 1961-06-07 1964-08-11 Cookson Maynard Charles Scott Dispensers for syrups and like commodities
US3416567A (en) * 1964-02-20 1968-12-17 Viggo Ab Syringe valve
US3525363A (en) * 1968-08-02 1970-08-25 Chicago Specialty Mfg Co Means for controlling the direction of the flow of a liquid or fluid through a selected outlet
US3774604A (en) * 1971-01-28 1973-11-27 Demeco Medical Products Ab Infusion cannula assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144177A (en) * 1961-06-07 1964-08-11 Cookson Maynard Charles Scott Dispensers for syrups and like commodities
US3416567A (en) * 1964-02-20 1968-12-17 Viggo Ab Syringe valve
US3525363A (en) * 1968-08-02 1970-08-25 Chicago Specialty Mfg Co Means for controlling the direction of the flow of a liquid or fluid through a selected outlet
US3774604A (en) * 1971-01-28 1973-11-27 Demeco Medical Products Ab Infusion cannula assembly

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945603A (en) * 1975-04-17 1976-03-23 Fts Systems Inc. Valve particularly adapted for use in vacuum work
US4072161A (en) * 1975-09-17 1978-02-07 Rockwell International Corporation Sealing member for valve stems
US4096860A (en) * 1975-10-08 1978-06-27 Mclaughlin William F Dual flow encatheter
US4217895A (en) * 1977-06-03 1980-08-19 Terumo Corporation Intravascular catheter
US4245635A (en) * 1979-01-29 1981-01-20 Jelco Laboratories Catheter assembly for intermittent intravenous use
US4454887A (en) * 1981-04-15 1984-06-19 Krueger Christian Medical instruments for introduction into the respiratory tract of a patient
US4535773A (en) * 1982-03-26 1985-08-20 Inbae Yoon Safety puncturing instrument and method
US4954130A (en) * 1988-01-20 1990-09-04 William P. Waters Catheter/heparin lock and method of using same
US5098393A (en) * 1988-05-31 1992-03-24 Kurt Amplatz Medical introducer and valve assembly
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Also Published As

Publication number Publication date Type
FR2220729B1 (en) 1975-10-31 grant
FR2220729A1 (en) 1974-10-04 application

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