WO2000035513A3 - Neonatal blood pump - Google Patents

Neonatal blood pump Download PDF

Info

Publication number
WO2000035513A3
WO2000035513A3 PCT/IB1999/002120 IB9902120W WO0035513A3 WO 2000035513 A3 WO2000035513 A3 WO 2000035513A3 IB 9902120 W IB9902120 W IB 9902120W WO 0035513 A3 WO0035513 A3 WO 0035513A3
Authority
WO
WIPO (PCT)
Prior art keywords
tubing
blood
stretched
header
rollers
Prior art date
Application number
PCT/IB1999/002120
Other languages
French (fr)
Other versions
WO2000035513A2 (en
Inventor
Claude F Mondiere
Original Assignee
Claude F Mondiere
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 Claude F Mondiere filed Critical Claude F Mondiere
Priority to EP99969972A priority Critical patent/EP1141547A1/en
Publication of WO2000035513A2 publication Critical patent/WO2000035513A2/en
Publication of WO2000035513A3 publication Critical patent/WO2000035513A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1215—Machines, pumps, or pumping installations having flexible working members having peristaltic action having no backing plate (deforming of the tube only by rollers)
    • 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/117—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body for assisting the heart, e.g. transcutaneous or external ventricular assist devices
    • 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/20—Type thereof
    • A61M60/247—Positive displacement blood pumps
    • A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
    • A61M60/268—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
    • A61M60/279—Peristaltic pumps, e.g. roller pumps
    • 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/30—Medical purposes thereof other than the enhancement of the cardiac output
    • A61M60/36—Medical purposes thereof other than the enhancement of the cardiac output for specific blood treatment; for specific therapy
    • A61M60/38—Blood oxygenation
    • 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/424—Details relating to driving for positive displacement blood pumps
    • A61M60/438—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being mechanical
    • A61M60/441—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being mechanical generated by an electromotor
    • 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/835—Constructional details other than related to driving of positive displacement blood pumps
    • A61M60/837—Aspects of flexible displacement members, e.g. shapes or materials
    • 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
    • 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
    • A61M2240/00—Specially adapted for neonatal use
    • 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • A61M60/113—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines

Abstract

A peristaltic pump employs a tensioner to add additional stretch to a distensible, compliant segment of tubing stretched around pin rollers mounted (120) degrees apart on a rotating wheel just before stretch is released on the segment as the wheel rotates. The release creates a pressure wave giving a pulsatile flow. The tubing is not compressed against a raceway, but is tensioned against rollers restricting the lumen of the tubing where it is stretched across the rollers. This feature allows the stretched tubing to function as a capacitance reservoir, eliminating the need for upstream and downstream reservoirs. The volume of blood in the header tubing varies according to available venous return. When outflow obstruction occurs, blood accumulates in the header tubing. As the tubing distends, it becomes progressively less occlusive, so that over pressure is avoided. When the obstruction is released, blood flows downstream rapidly propelled by the large stroke volume of the distended header tubing. The tubing is never totally occlusive, so that negative pressure, blood cell lysis and degassing do not occur.
PCT/IB1999/002120 1998-12-17 1999-12-17 Neonatal blood pump WO2000035513A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99969972A EP1141547A1 (en) 1998-12-17 1999-12-17 Neonatal blood pump

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR98/15918 1998-12-17
FR9815918 1998-12-17
AU42551/00A AU4255100A (en) 1998-12-17 2000-06-20 Extracorporeal circulation pump
CA002312298A CA2312298A1 (en) 1998-12-17 2000-06-20 Extracorporeal circulation pump

Publications (2)

Publication Number Publication Date
WO2000035513A2 WO2000035513A2 (en) 2000-06-22
WO2000035513A3 true WO2000035513A3 (en) 2000-10-26

Family

ID=27154143

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/002120 WO2000035513A2 (en) 1998-12-17 1999-12-17 Neonatal blood pump

Country Status (4)

Country Link
EP (1) EP1141547A1 (en)
AU (1) AU4255100A (en)
CA (1) CA2312298A1 (en)
WO (1) WO2000035513A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003595A1 (en) * 2009-07-06 2011-01-13 King Saud University Blood-pumping device
EP3737438A4 (en) 2018-01-11 2021-08-18 Triphasic Cardiac Pump Pty Ltd Cardiac pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218197A (en) * 1978-07-06 1980-08-19 Beckman Instruments, Inc. Combined peristaltic pump and valve flow controller
US4492531A (en) * 1982-04-30 1985-01-08 Kuraray Co., Ltd. Apparatus for producing a controlled pulsed liquid flow
US4976593A (en) * 1986-12-03 1990-12-11 Meddiss, Incorporated Pulsatile flow delivery apparatus
US5222880A (en) * 1991-10-11 1993-06-29 The Regents Of The University Of Michigan Self-regulating blood pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748323A (en) 1971-07-09 1973-07-24 Pfizer 6-(sulfato acylamino)penicillanic acids and esters thereof
US5069661A (en) 1988-05-18 1991-12-03 Brigham And Women's Hospital Circulatory support system
US5281112A (en) 1992-02-25 1994-01-25 The Regents Of The University Of Michigan Self regulating blood pump with controlled suction
US5486099A (en) 1994-12-14 1996-01-23 Michigan Critical Care Consultants, Inc. Peristaltic pump with occlusive inlet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218197A (en) * 1978-07-06 1980-08-19 Beckman Instruments, Inc. Combined peristaltic pump and valve flow controller
US4492531A (en) * 1982-04-30 1985-01-08 Kuraray Co., Ltd. Apparatus for producing a controlled pulsed liquid flow
US4976593A (en) * 1986-12-03 1990-12-11 Meddiss, Incorporated Pulsatile flow delivery apparatus
US5222880A (en) * 1991-10-11 1993-06-29 The Regents Of The University Of Michigan Self-regulating blood pump

Also Published As

Publication number Publication date
EP1141547A1 (en) 2001-10-10
CA2312298A1 (en) 2001-12-20
WO2000035513A2 (en) 2000-06-22
AU4255100A (en) 2002-01-10

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