GB780637A - Control arrangement in a pump having a pump chamber of periodically variable volume - Google Patents

Control arrangement in a pump having a pump chamber of periodically variable volume

Info

Publication number
GB780637A
GB780637A GB27884/55A GB2788455A GB780637A GB 780637 A GB780637 A GB 780637A GB 27884/55 A GB27884/55 A GB 27884/55A GB 2788455 A GB2788455 A GB 2788455A GB 780637 A GB780637 A GB 780637A
Authority
GB
United Kingdom
Prior art keywords
pump
chambers
valve
presser
pipe
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
GB27884/55A
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.)
Svenska AB Gasaccumulator
Original Assignee
Svenska AB Gasaccumulator
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 Svenska AB Gasaccumulator filed Critical Svenska AB Gasaccumulator
Publication of GB780637A publication Critical patent/GB780637A/en
Expired legal-status Critical Current

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
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/086—Machines, pumps, or pumping installations having flexible working members having tubular flexible members with two or more tubular flexible members in parallel
    • 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
    • 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
    • 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
    • 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
    • F04B49/00—Control, 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
    • F04B49/16—Control, 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 adjusting the capacity of dead spaces of working chambers
    • 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
    • A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/89—Valves
    • A61M60/892—Active valves, i.e. actuated by an external 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
    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80—Constructional details other than related to driving
    • A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/89—Valves
    • A61M60/894—Passive valves, i.e. valves actuated by the blood

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Anesthesiology (AREA)
  • Cardiology (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)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

780,637. Diaphragm pumps. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Sept. 30, 1955 [Oct. 6, 1954], No. 27884/55. Class 102(1). A pump, e.g. for pumping blood, comprises a pair of flexible tubes 1, 2 fitted with valves 3 .. 6, and alternately compressed by a presser 10 reciprocated by a crank 9. The amount of liquid pumped is controlled by limiting the distortion of the side of the tubes 1 and 2, opposite to the side actuated by the presser, by flexible chambers 12, 13 containing fluid under a variable pressure. The chambers 12, 13 are supplied with pressure fluid through a pipe 20, valve device 19 and pipe 18. To control the pressure in the flexible chambers a manuallyadjustable by-pass valve 24 is provided, and in addition a throttle needle valve 27 is actuated by a lever 31 connected to a diaphragm 35 forming the base of the suction vessel 34; this arrangement prevents the level of the liquid in the vessel 34 from falling below a certain level. The throttle valve 27 may pass through its seat and further movement of the lever 31 actuates a piston valve 26 to open the pipe 18 to atmosphere. The output of the pump may be controlled by placing the chambers 12, 13 between the presser 10 and the tubes 1, 2.
GB27884/55A 1954-10-06 1955-09-30 Control arrangement in a pump having a pump chamber of periodically variable volume Expired GB780637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE780637X 1954-10-06

Publications (1)

Publication Number Publication Date
GB780637A true GB780637A (en) 1957-08-07

Family

ID=20335081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27884/55A Expired GB780637A (en) 1954-10-06 1955-09-30 Control arrangement in a pump having a pump chamber of periodically variable volume

Country Status (2)

Country Link
FR (1) FR1132154A (en)
GB (1) GB780637A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107875466A (en) * 2017-11-07 2018-04-06 广州启骏生物科技有限公司 A kind of heart assistance pumping system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936712A (en) * 1958-01-20 1960-05-17 Deere & Co Variable displacement pump
DE1096554B (en) * 1958-04-05 1961-01-05 Heinrich C Ulrich Life-support-machine
DE1192787B (en) * 1960-04-01 1965-05-13 Jaeger Erich Pump for a heart-lung machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107875466A (en) * 2017-11-07 2018-04-06 广州启骏生物科技有限公司 A kind of heart assistance pumping system

Also Published As

Publication number Publication date
FR1132154A (en) 1957-03-06

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