DE2710269C2 - Pulsierende Blutpumpe - Google Patents

Pulsierende Blutpumpe

Info

Publication number
DE2710269C2
DE2710269C2 DE2710269A DE2710269A DE2710269C2 DE 2710269 C2 DE2710269 C2 DE 2710269C2 DE 2710269 A DE2710269 A DE 2710269A DE 2710269 A DE2710269 A DE 2710269A DE 2710269 C2 DE2710269 C2 DE 2710269C2
Authority
DE
Germany
Prior art keywords
pump
piston
blood pump
blood
membrane
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
DE2710269A
Other languages
German (de)
English (en)
Other versions
DE2710269A1 (de
Inventor
Toshio Tokyo Ichinose
Shozo Ohara
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.)
Nikkiso Co Ltd
Original Assignee
Nikkiso Co Ltd
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 Nikkiso Co Ltd filed Critical Nikkiso Co Ltd
Publication of DE2710269A1 publication Critical patent/DE2710269A1/de
Application granted granted Critical
Publication of DE2710269C2 publication Critical patent/DE2710269C2/de
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
    • 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10Location thereof with respect to the patient's body
    • A61M60/104Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40Details relating to driving
    • A61M60/424Details relating to driving for positive displacement blood pumps
    • A61M60/438Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being mechanical
    • A61M60/441Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being mechanical generated by an electromotor
    • 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/50Details relating to control
    • A61M60/508Electronic control means, e.g. for feedback regulation
    • 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80Constructional details other than related to driving
    • A61M60/835Constructional details other than related to driving of positive displacement blood pumps
    • A61M60/837Aspects of flexible displacement members, e.g. shapes or materials
    • 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80Constructional details other than related to driving
    • A61M60/845Constructional details other than related to driving of extracorporeal blood pumps
    • A61M60/851Valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0054Special features particularities of the flexible members
    • F04B43/0072Special features particularities of the flexible members of tubular flexible members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0081Special features systems, control, safety measures
    • F04B43/009Special features systems, control, safety measures leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06Pumps having fluid drive
    • F04B43/067Pumps having fluid drive the fluid being actuated directly by a piston
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/08Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10Pumps having fluid drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/12Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/14Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1037Flap valves
    • F04B53/104Flap valves the closure member being a rigid element oscillating around a fixed point
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/047Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being pin-and-slot mechanisms
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow
    • A61M2205/3334Measuring or controlling the flow rate
    • 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80Constructional details other than related to driving
    • A61M60/855Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/89Valves
    • A61M60/892Active valves, i.e. actuated by an external force
    • 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80Constructional details other than related to driving
    • A61M60/855Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/89Valves
    • A61M60/894Passive valves, i.e. valves actuated by the blood

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • External Artificial Organs (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
DE2710269A 1976-11-09 1977-03-09 Pulsierende Blutpumpe Expired DE2710269C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51133785A JPS5816901B2 (ja) 1976-11-09 1976-11-09 拍動型血液ポンプ

Publications (2)

Publication Number Publication Date
DE2710269A1 DE2710269A1 (de) 1978-05-11
DE2710269C2 true DE2710269C2 (de) 1984-01-19

Family

ID=15112934

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2710269A Expired DE2710269C2 (de) 1976-11-09 1977-03-09 Pulsierende Blutpumpe

Country Status (9)

Country Link
US (1) US4360324A ( )
JP (1) JPS5816901B2 ( )
AU (1) AU2291177A ( )
CH (1) CH617495A5 ( )
DE (1) DE2710269C2 ( )
FR (1) FR2370184A1 ( )
GB (1) GB1577344A ( )
IT (1) IT1104563B ( )
SE (1) SE7702507L ( )

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826033C2 (de) * 1978-06-14 1982-04-15 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Infusionspumpe
US4411603A (en) * 1981-06-24 1983-10-25 Cordis Dow Corp. Diaphragm type blood pump for medical use
GB2139710A (en) * 1983-04-21 1984-11-14 Millington And Company Limited Pump
DE3428828A1 (de) * 1984-08-04 1986-02-13 Karl-Theo 6652 Bexbach Braun Vorrichtung zur foerderung von gegen mechanische beanspruchung hochempfindlichen fluessigkeiten
US4573883A (en) * 1985-03-01 1986-03-04 Baylor College Of Medicine Disposable blood pump
US4722372A (en) * 1985-08-02 1988-02-02 Louis Hoffman Associates Inc. Electrically operated dispensing apparatus and disposable container useable therewith
FR2625903B1 (fr) * 1988-01-14 1997-06-13 Univ Paris Curie Prothese cardiaque totalement implantable a membranes flottantes, a raccord rapide et a elements sensibles amovibles
JPH02272802A (ja) * 1989-04-13 1990-11-07 Matsushita Electric Ind Co Ltd 共振器
JPH0653160B2 (ja) * 1989-08-18 1994-07-20 呉羽化学工業株式会社 拍動発生方法及び装置
US5092749A (en) * 1990-05-07 1992-03-03 Imed Corporation Fluid pump drive mechanism
DE4221379A1 (de) * 1992-07-02 1994-01-05 Flechsig Rudolf Prof Dipl Ing Pumpkammer für medizinische Zwecke
US5281210A (en) * 1992-09-18 1994-01-25 Infusaid, Inc. Accumulator for implantable pump
ES2094700B1 (es) * 1995-05-30 1997-08-01 Serv Reg Salud Com Madrid Dispositivo para bombeo de sangre de forma tubular, con valvulas activas gobernado por vacio y aplicacion del mismo.
GB2302045A (en) * 1995-06-09 1997-01-08 Calvin John Ryan Pump for blood treatment; pressure sensor
CA2278239C (en) 1997-01-17 2003-12-23 Niagara Pump Corporation Linear peristaltic pump
US5980448A (en) * 1998-01-28 1999-11-09 Vascor, Inc. Single chamber blood pump
GB2343120B (en) * 1998-01-28 2000-09-27 Vascor Inc Blood pump apparatus
DE19903052B4 (de) * 1999-01-26 2007-11-22 Josef Emmerich Pumpenfabrik Gmbh Membrankolbenpumpe
GB2349431B (en) * 1999-04-29 2002-06-12 Watson Marlow Ltd Peristaltic pumps
ITMI20021028A1 (it) * 2002-05-14 2003-11-14 Dideco Spa Unita' pompante di fluido in particolare sangue
JP4224608B2 (ja) * 2002-11-19 2009-02-18 学校法人日本大学 注入療法用装置
KR100599986B1 (ko) * 2004-10-23 2006-07-13 고려대학교 산학협력단 혈액 펌프 구동기 및 이를 구비하는 혈액 펌프 시스템
US20070048152A1 (en) * 2005-08-30 2007-03-01 Harlew Conally High pressure solar powered pump
US8425396B2 (en) 2007-04-20 2013-04-23 Tani Tatum Physiologic pulsatile pump
US8540617B2 (en) 2007-04-20 2013-09-24 Medical Engineering Company, Llc Extracorporeal pumping methods
US7785247B2 (en) * 2007-04-20 2010-08-31 Medical Engineering Co., LLC Physiologic pulsatile pump
US8449500B2 (en) * 2007-11-16 2013-05-28 Baxter International Inc. Flow pulsatility dampening devices for closed-loop controlled infusion systems
US10265454B2 (en) 2008-07-25 2019-04-23 Baxter International Inc. Dialysis system with flow regulation device
US20100243087A1 (en) * 2009-03-03 2010-09-30 Millipore Corporation System and pump apparatus for processing fluid samples
US8366667B2 (en) 2010-02-11 2013-02-05 Baxter International Inc. Flow pulsatility dampening devices
KR101305362B1 (ko) 2011-12-30 2013-09-06 경북대학교 산학협력단 박출속도 및 박출비 조절가능한 맥동형 혈액펌프장치
KR101305361B1 (ko) 2011-12-30 2013-09-06 경북대학교 산학협력단 심박출량 조절가능한 맥동형 혈액펌프장치
KR101305360B1 (ko) 2011-12-30 2013-09-06 경북대학교 산학협력단 맥동형 혈액펌프장치
US10697447B2 (en) * 2014-08-21 2020-06-30 Fenwal, Inc. Magnet-based systems and methods for transferring fluid
JP6429316B2 (ja) * 2014-12-05 2018-11-28 蛇の目ミシン工業株式会社 ミシンの圧縮空気供給装置
EP3120881A1 (en) 2015-07-23 2017-01-25 Northern Development AS Pulsatile ventricular assist device
US11035348B2 (en) * 2018-08-28 2021-06-15 National Oilwell Varco, L.P. Reciprocating pumps having a pivoting arm
CN111828292B (zh) * 2020-07-23 2022-05-20 嘉善边锋机械股份有限公司 一种可调节量程的计量泵
US11236741B1 (en) * 2021-02-23 2022-02-01 Ventriflo, Inc. Diaphragm assembly for a pulsatile fluid pump

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1319213A (en) * 1919-10-21 engelbrekt
US2735642A (en) * 1956-02-21 norman
US723042A (en) * 1901-03-19 1903-03-17 Hardman Rubber Company Valve for syringes, atomizers, &c.
GB305235A (en) * 1928-02-02 1930-05-01 Tecalemit Ltd Means for operating a flexible diaphragm more particularly adapted for diaphragm pumps
US1742746A (en) * 1928-06-22 1930-01-07 Ac Spark Plug Co Variable-stroke fuel pump
US1806268A (en) * 1929-03-08 1931-05-19 Stewart Warner Corp Fuel pump
US1979195A (en) * 1929-06-29 1934-10-30 Govare Harry Paul Cam
US1976415A (en) * 1930-10-20 1934-10-09 Super Diesel Tractor Corp Pump
DE673217C (de) * 1936-12-12 1939-03-18 Siemens Schuckertwerke Akt Ges Antrieb fuer Pumpen oder Kompressoren, insbesondere Kaeltekompressoren
US2267280A (en) * 1937-10-15 1941-12-23 Hermes Patentverwertungs Gmbh Device for conveying fluids
US3095750A (en) * 1959-12-12 1963-07-02 Optische Werke Jos Schneider & Control mechanism for the axial displacement of components of photographic or cinematographic objectives and the like
DE1192787B (de) * 1960-04-01 1965-05-13 Jaeger Erich Pumpe fuer eine Herz-Lungen-Maschine
US3127845A (en) * 1960-10-03 1964-04-07 Carl S Voelcker Pump design
US3098480A (en) * 1960-11-29 1963-07-23 William D Worthington System for fluid transfusion
US3070089A (en) * 1961-05-17 1962-12-25 Dale O Dick Resuscitator
US3148624A (en) * 1961-06-21 1964-09-15 Alan W Baldwin Hydraulic pump
US3194164A (en) * 1963-04-26 1965-07-13 Fink Fluid pump
US3218979A (en) * 1964-04-28 1965-11-23 Alan W Baldwin Hydraulic blood pump
US3250226A (en) * 1964-09-08 1966-05-10 Allied Chem Hydraulic actuated pumping system
US3551076A (en) * 1968-03-22 1970-12-29 Interpace Corp Tubular diaphragm pump
US3496874A (en) * 1968-04-16 1970-02-24 John S Findlay Diaphragm actuated pulse pump
US3814547A (en) * 1970-10-01 1974-06-04 Tecna Corp Nontraumatic heart pump
US3811800A (en) * 1972-07-12 1974-05-21 K Shill Blood pump
US3883272A (en) * 1973-04-16 1975-05-13 Benjamin V Puckett Hydraulic pump with replaceable pumping member
DE2340755B2 (de) * 1973-08-11 1975-09-18 Horst Dr.-Ing. 5100 Aachen Chmiel Blutpumpe

Also Published As

Publication number Publication date
AU2291177A (en) 1978-09-07
US4360324A (en) 1982-11-23
CH617495A5 ( ) 1980-05-30
JPS5358804A (en) 1978-05-27
JPS5816901B2 (ja) 1983-04-02
DE2710269A1 (de) 1978-05-11
SE7702507L (sv) 1978-05-10
IT1104563B (it) 1985-10-21
FR2370184A1 (fr) 1978-06-02
GB1577344A (en) 1980-10-22

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