GB1399501A - Perfusion safety valve - Google Patents

Perfusion safety valve

Info

Publication number
GB1399501A
GB1399501A GB3521372A GB3521372A GB1399501A GB 1399501 A GB1399501 A GB 1399501A GB 3521372 A GB3521372 A GB 3521372A GB 3521372 A GB3521372 A GB 3521372A GB 1399501 A GB1399501 A GB 1399501A
Authority
GB
United Kingdom
Prior art keywords
tube
membrane
blood
inner membrane
wall
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
Application number
GB3521372A
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.)
DEWALL R A
Original Assignee
DEWALL R A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DEWALL R A filed Critical DEWALL R A
Publication of GB1399501A publication Critical patent/GB1399501A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/227—Valves actuated by a secondary fluid, e.g. hydraulically or pneumatically actuated valves
    • A61M39/228—Valves actuated by a secondary fluid, e.g. hydraulically or pneumatically actuated valves with a tubular diaphragm constrictable by radial fluid force
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7879—Resilient material valve
    • Y10T137/788—Having expansible port
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/85986—Pumped fluid control
    • Y10T137/86002—Fluid pressure responsive
    • Y10T137/86019—Direct response valve

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • External Artificial Organs (AREA)

Abstract

1399501 Blood oxygenators R A DEWALL 27 July 1972 [3 Aug 1971] 35213/72 Heading A5R [Also in Division F2] A perfusion safety valve, which is designed for use in blood oxygenating systems wherein it is disposed downstream of an oxygenator and upstream of a pump (Fig. 1, not shown) comprises an elongated relatively rigid tube 18 perforated at 20, an outer membrane wall 26 outside the tube, and an inner membrane wall 24 within the tube, the two membrane walls being sealed to the ends of the tube and defining a closed space 28 therebetween. Space 28 contains a saline solution. Tube extensions 30 are barbed as at 34 to facilitate their connection to the lines of the system. The inner membrane 24 is made of any suitable blood compatible material such as a silicone rubber or a polyvinyl plastics material. In use, as long as the head of blood in the oxygenator reservoir exceeds a predetermined level, the pressure of the same will maintain the inner membrane 24 in the position shown, that is with the membrane abutting the inner wall of tube 18. If, however, the blood level fall below the predetermined level, then this together with the slight vacuum created by the pump will result in the atmospheric pressure applied to the outer membrane 26 collapsing the same and so driving the saline solution within space 28 through the perforations 20 to force the inner membrane to collapse and thus seal upon itself, (Figs. 3 and 5, not shown). Accordingly the valve precludes any possibility of air embolism.
GB3521372A 1971-08-03 1972-07-27 Perfusion safety valve Expired GB1399501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16864271A 1971-08-03 1971-08-03

Publications (1)

Publication Number Publication Date
GB1399501A true GB1399501A (en) 1975-07-02

Family

ID=22612348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3521372A Expired GB1399501A (en) 1971-08-03 1972-07-27 Perfusion safety valve

Country Status (6)

Country Link
US (1) US3717174A (en)
CA (1) CA999499A (en)
DE (1) DE2237858A1 (en)
FR (1) FR2148219B1 (en)
GB (1) GB1399501A (en)
IT (1) IT961755B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152197A (en) * 1983-12-28 1985-07-31 Coxwold Pty Ltd Valve assembly

Families Citing this family (50)

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GB1429771A (en) * 1972-04-04 1976-03-24 Cav Ltd Control systems for fuel systems for engines
US3833013A (en) * 1972-04-06 1974-09-03 Baxter Laboratories Inc Self-valving fluid reservoir and bubble trap
US3849071A (en) * 1972-12-21 1974-11-19 K Kayser Blood-gas separating system for perfusate circulation
US3991768A (en) * 1973-03-16 1976-11-16 Portnoy Harold D Shunt system resistant to overdrainage and siphoning and valve therefor
US3907504A (en) * 1973-04-06 1975-09-23 Gen Electric Blood oxygenation system including automatic means for stabilizing the flow rate of blood therethrough
US3927980A (en) * 1973-08-22 1975-12-23 Baxter Laboratories Inc Oxygen overpressure protection system for membrane-type blood oxygenators
US4131431A (en) * 1976-12-27 1978-12-26 Siposs George G Blood shut-off valve
US4140635A (en) * 1977-04-13 1979-02-20 Esmond William G Purification device
EP0045668A1 (en) * 1980-08-06 1982-02-10 Peter Steer Developments Limited Device for controlling the flow of liquid
US4515589A (en) * 1981-03-23 1985-05-07 Austin Jon W Peristaltic pumping method and apparatus
US4684364A (en) * 1983-04-12 1987-08-04 Interface Biomedical Laboratories Corporation Safety arrangement for preventing air embolism during intravenous procedures
US4722725A (en) * 1983-04-12 1988-02-02 Interface Biomedical Laboratories, Inc. Methods for preventing the introduction of air or fluid into the body of a patient
US4527588A (en) * 1983-12-14 1985-07-09 Warner-Lambert Company Safety valve
DE3420861A1 (en) * 1984-06-05 1985-12-05 Biotest Pharma GmbH, 6000 Frankfurt Peristaltic pump for medical purposes
WO1987004079A1 (en) * 1986-01-13 1987-07-16 Sawyer Philip Nicholas Methods for preventing the introduction of air or fluid reflux into the body of a patient
US4883461A (en) * 1987-05-15 1989-11-28 Interface Biomedical Laboratories Corp. Safety needle sheath in anti-reflux catheter having novel valve means
US4877025A (en) * 1988-10-06 1989-10-31 Hanson Donald W Tracheostomy tube valve apparatus
US5382407A (en) * 1988-12-14 1995-01-17 Minnesota Mining And Manufacturing Company Membrane blood oxygenator
CA2001956A1 (en) * 1988-12-14 1990-06-14 Ronald J. Leonard Membrane blood oxygenator
US5186431A (en) * 1989-09-22 1993-02-16 Yehuda Tamari Pressure sensitive valves for extracorporeal circuits
US5161773A (en) * 1990-08-01 1992-11-10 Numed, Inc. Method and apparatus for controlling fluid flow
US5248275A (en) * 1991-05-20 1993-09-28 M & D Balloons, Inc. Balloon with flat film valve and method of manufacture
CZ149294A3 (en) * 1991-12-18 1994-11-16 Icu Medical Inc Medicinal valve
US5482492A (en) * 1994-01-10 1996-01-09 M & D Balloons, Inc. Balloons and balloon valves
FR2724564B1 (en) * 1994-09-16 1997-04-04 Boussignac Georges RESPIRATORY ASSISTANCE DEVICE
US5738663A (en) * 1995-12-15 1998-04-14 Icu Medical, Inc. Medical valve with fluid escape space
US6695817B1 (en) 2000-07-11 2004-02-24 Icu Medical, Inc. Medical valve with positive flow characteristics
US7008403B1 (en) * 2002-07-19 2006-03-07 Cognitive Ventures Corporation Infusion pump and method for use
US6887220B2 (en) * 2002-09-12 2005-05-03 Gore Enterprise Holdings, Inc. Catheter having a compliant member configured to regulate aspiration rates
AU2005304987B2 (en) 2004-11-05 2011-08-11 Icu Medical, Inc. Medical connector having high flow rate characteristics
US20080029173A1 (en) * 2006-08-07 2008-02-07 Diperna Paul Mario Variable flow reshapable flow restrictor apparatus and related methods
AU2007308835A1 (en) 2006-10-25 2008-05-02 Icu Medical, Inc. Medical connector
US8986253B2 (en) 2008-01-25 2015-03-24 Tandem Diabetes Care, Inc. Two chamber pumps and related methods
US8034065B2 (en) * 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US20090217982A1 (en) * 2008-02-28 2009-09-03 Phluid Inc. Adjustable flow controllers for real-time modulation of flow rate
US8056582B2 (en) * 2008-08-08 2011-11-15 Tandem Diabetes Care, Inc. System of stepped flow rate regulation using compressible members
US8408421B2 (en) 2008-09-16 2013-04-02 Tandem Diabetes Care, Inc. Flow regulating stopcocks and related methods
AU2009293019A1 (en) 2008-09-19 2010-03-25 Tandem Diabetes Care Inc. Solute concentration measurement device and related methods
US8454579B2 (en) 2009-03-25 2013-06-04 Icu Medical, Inc. Medical connector with automatic valves and volume regulator
WO2011014704A2 (en) 2009-07-30 2011-02-03 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
USD644731S1 (en) 2010-03-23 2011-09-06 Icu Medical, Inc. Medical connector
US8758306B2 (en) 2010-05-17 2014-06-24 Icu Medical, Inc. Medical connectors and methods of use
WO2011156904A2 (en) * 2010-06-14 2011-12-22 University Of Manitoba Method and apparatus for retroperfusion
US9180242B2 (en) 2012-05-17 2015-11-10 Tandem Diabetes Care, Inc. Methods and devices for multiple fluid transfer
US9173998B2 (en) 2013-03-14 2015-11-03 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump
CA2932124C (en) 2013-12-11 2023-05-09 Icu Medical, Inc. Check valve
USD793551S1 (en) 2014-12-03 2017-08-01 Icu Medical, Inc. Fluid manifold
USD786427S1 (en) 2014-12-03 2017-05-09 Icu Medical, Inc. Fluid manifold
CN111043348A (en) * 2019-12-18 2020-04-21 武汉圣禹排水系统有限公司 Rubber sleeve with mounting structure and pipeline provided with same
CN213158666U (en) * 2020-05-28 2021-05-11 首都医科大学宣武医院 Pipe blocking device for respiratory function rehabilitation after tracheotomy

Family Cites Families (7)

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US2572658A (en) * 1948-02-16 1951-10-23 Albert G Perkins Automatic teat cup release device for milking machines
US2756959A (en) * 1951-07-25 1956-07-31 Globe Company Fluid-pressure responsive sphincter valve
US2964285A (en) * 1958-09-09 1960-12-13 Soc D Ciments De Marseille Et Direct-passage valve
US2982511A (en) * 1959-02-27 1961-05-02 Douglas M Connor Pressure-operated control valve
US3204631A (en) * 1961-05-01 1965-09-07 Louis G Fields Blood oxygenator and pump apparatus
US3183908A (en) * 1961-09-18 1965-05-18 Samuel C Collins Pump oxygenator system
US3513845A (en) * 1966-09-15 1970-05-26 United Aircraft Corp Bypass heart pump and oxygenator system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152197A (en) * 1983-12-28 1985-07-31 Coxwold Pty Ltd Valve assembly

Also Published As

Publication number Publication date
DE2237858A1 (en) 1973-02-15
FR2148219A1 (en) 1973-03-16
CA999499A (en) 1976-11-09
IT961755B (en) 1973-12-10
US3717174A (en) 1973-02-20
FR2148219B1 (en) 1975-03-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee