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GB1077033A - Improvements in,or relating to,pump elements - Google Patents

Improvements in,or relating to,pump elements

Info

Publication number
GB1077033A
GB1077033A GB2284/66A GB228466A GB1077033A GB 1077033 A GB1077033 A GB 1077033A GB 2284/66 A GB2284/66 A GB 2284/66A GB 228466 A GB228466 A GB 228466A GB 1077033 A GB1077033 A GB 1077033A
Authority
GB
United Kingdom
Prior art keywords
groove
sealing medium
blood
liquid sealing
pump element
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
GB2284/66A
Inventor
Werner Willgerodt
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.)
Medizintechnik Leipzig VEB
Original Assignee
Medizintechnik Leipzig VEB
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 Medizintechnik Leipzig VEB filed Critical Medizintechnik Leipzig VEB
Priority to GB2284/66A priority Critical patent/GB1077033A/en
Publication of GB1077033A publication Critical patent/GB1077033A/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
    • 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
    • A61M60/258—Piston 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
    • A61M60/10—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
    • A61M60/30—Medical purposes thereof other than the enhancement of the cardiac output
    • A61M60/39—Medical purposes thereof other than the enhancement of the cardiac output for blood transfusion

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Cardiology (AREA)
  • Mechanical Engineering (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)
  • External Artificial Organs (AREA)

Abstract

1,077,033. Pump elements for blood exchange apparatuses. MEDIZINTECHNIK LEIPZIG VEB. Jan. 18, 1966, No. 2284/66. Heading A5R. [Also in Division F2] A pump element for blood exchange apparatuses comprises a piston and a cylinder, the piston being provided with a peripheral groove and inlet and outlet bores which extend from the end-face remote from the cylinder head to communicate with the peripheral groove whereby a liquid sealing medium can be circulated in the groove. A system of two or more such pump elements may be incorporated in a blood exchange apparatus. As shown, piston 5 of pump element 1 is provided with peripheral groove 2 and bores 4. A liquid sealing medium 9, e.g. blood plasma, is pumped from reservoir 10 through groove 2 into waste container 11. In a modification (not shown), the liquid sealing medium may be circulated in a closed loop from the groove of a last pump element to the groove of a first pump element. In order to ensure an adequate amount of sealing medium in each groove, an extension 6 is provided on the outlet bore. The liquid sealing medium is passed from reservoir to grooves and finally to waste container via conduits 8 which are connected to bores 4 by connectors 7. Blood is pumped from chamber 12, and the function of the liquid sealing medium is to prevent air from entering the blood.,
GB2284/66A 1966-01-18 1966-01-18 Improvements in,or relating to,pump elements Expired GB1077033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2284/66A GB1077033A (en) 1966-01-18 1966-01-18 Improvements in,or relating to,pump elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2284/66A GB1077033A (en) 1966-01-18 1966-01-18 Improvements in,or relating to,pump elements

Publications (1)

Publication Number Publication Date
GB1077033A true GB1077033A (en) 1967-07-26

Family

ID=9736855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2284/66A Expired GB1077033A (en) 1966-01-18 1966-01-18 Improvements in,or relating to,pump elements

Country Status (1)

Country Link
GB (1) GB1077033A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157859A1 (en) * 1983-09-28 1985-10-16 Nimbus Inc Anti-thrombogenic blood pump.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157859A1 (en) * 1983-09-28 1985-10-16 Nimbus Inc Anti-thrombogenic blood pump.
EP0157859A4 (en) * 1983-09-28 1987-09-02 Nimbus Inc Anti-thrombogenic blood pump.

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