SE8903039L - BLOOD PUMP - Google Patents

BLOOD PUMP

Info

Publication number
SE8903039L
SE8903039L SE8903039A SE8903039A SE8903039L SE 8903039 L SE8903039 L SE 8903039L SE 8903039 A SE8903039 A SE 8903039A SE 8903039 A SE8903039 A SE 8903039A SE 8903039 L SE8903039 L SE 8903039L
Authority
SE
Sweden
Prior art keywords
pump chamber
inlet
outlet
internal volume
opening
Prior art date
Application number
SE8903039A
Other languages
Swedish (sv)
Other versions
SE466988B (en
SE8903039D0 (en
Inventor
Nilsson E Loefsjoegaard
Original Assignee
Data Promeditech Inc Ab
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 Data Promeditech Inc Ab filed Critical Data Promeditech Inc Ab
Priority to SE8903039A priority Critical patent/SE466988B/en
Publication of SE8903039D0 publication Critical patent/SE8903039D0/en
Priority to IE310190A priority patent/IE903101A1/en
Priority to DD90343981A priority patent/DD297568A5/en
Priority to PCT/SE1990/000585 priority patent/WO1991004063A1/en
Priority to DE69005752T priority patent/DE69005752T2/en
Priority to AU64169/90A priority patent/AU6416990A/en
Priority to EP90850307A priority patent/EP0418207B1/en
Priority to JP2513342A priority patent/JP2858946B2/en
Priority to AT90850307T priority patent/ATE99552T1/en
Priority to US07/834,291 priority patent/US5209654A/en
Priority to PT95320A priority patent/PT95320A/en
Priority to CN90107819A priority patent/CN1050251A/en
Publication of SE8903039L publication Critical patent/SE8903039L/en
Publication of SE466988B publication Critical patent/SE466988B/en

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
    • 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
    • A61M1/1037—

Landscapes

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

Abstract

An extracorporeal blood pump comprises a pump chamber 1 with an inlet opening 2 and an outlet opening 3 connected to check valves 4, 5, respectively. The inlet 1 and the outlet 2 are movable relative to each other and are coupled to a drive unit 6 for periodic displacement of the inlet and the outlet alternately towards and away from each other, and the internal volume of the pump chamber 1 is variable according to the distance between the inlet and the outlet. The pump chamber 1 is acted on externally by the atmospheric pressure and has a wall of flexible material so designed that the pump chamber collapses and reduces its internal volume if the internal pressure in the pump chamber falls below the atmospheric pressure by an amount which is greater than the required opening pressure for the check valve connected to the inlet. The reduction in the internal volume of the pump chamber upon such collapse can at least correspond to the maximum increase in the internal volume of the pump chamber when the inlet and the outlet are moved away from each other. <IMAGE>
SE8903039A 1989-09-15 1989-09-15 Blood pump SE466988B (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE8903039A SE466988B (en) 1989-09-15 1989-09-15 Blood pump
IE310190A IE903101A1 (en) 1989-09-15 1990-08-24 Fluid pump with flexible pump chamber
DD90343981A DD297568A5 (en) 1989-09-15 1990-09-12 FLUID PUMP WITH FLEXIBLE PUMP CHAMBER
PT95320A PT95320A (en) 1989-09-15 1990-09-14 CORPORATIVE FLUID PUMP WITH FLEXIBLE PUMP CAMERA
EP90850307A EP0418207B1 (en) 1989-09-15 1990-09-14 Fluid pump with flexible pump chamber
DE69005752T DE69005752T2 (en) 1989-09-15 1990-09-14 Liquid pump with flexible pump chamber.
AU64169/90A AU6416990A (en) 1989-09-15 1990-09-14 Fluid pump with flexible pump chamber
PCT/SE1990/000585 WO1991004063A1 (en) 1989-09-15 1990-09-14 Fluid pump with flexible pump chamber
JP2513342A JP2858946B2 (en) 1989-09-15 1990-09-14 Fluid pump with flexible pump chamber
AT90850307T ATE99552T1 (en) 1989-09-15 1990-09-14 LIQUID PUMP WITH FLEXIBLE PUMP CHAMBER.
US07/834,291 US5209654A (en) 1989-09-15 1990-09-14 Fluid pump with flexible pump chamber
CN90107819A CN1050251A (en) 1989-09-15 1990-09-15 The fluid pump that has pliable and tough pump chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903039A SE466988B (en) 1989-09-15 1989-09-15 Blood pump

Publications (3)

Publication Number Publication Date
SE8903039D0 SE8903039D0 (en) 1989-09-15
SE8903039L true SE8903039L (en) 1991-03-16
SE466988B SE466988B (en) 1992-05-11

Family

ID=20376890

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903039A SE466988B (en) 1989-09-15 1989-09-15 Blood pump

Country Status (2)

Country Link
DD (1) DD297568A5 (en)
SE (1) SE466988B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112791305A (en) * 2021-01-22 2021-05-14 苏州心擎医疗技术有限公司 Blood pump and power transmission assembly thereof

Also Published As

Publication number Publication date
SE466988B (en) 1992-05-11
DD297568A5 (en) 1992-01-16
SE8903039D0 (en) 1989-09-15

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Legal Events

Date Code Title Description
NUG Patent has lapsed