DE2423673A1 - Ventilklappenlose peristaltische herzpumpe - Google Patents

Ventilklappenlose peristaltische herzpumpe

Info

Publication number
DE2423673A1
DE2423673A1 DE2423673A DE2423673A DE2423673A1 DE 2423673 A1 DE2423673 A1 DE 2423673A1 DE 2423673 A DE2423673 A DE 2423673A DE 2423673 A DE2423673 A DE 2423673A DE 2423673 A1 DE2423673 A1 DE 2423673A1
Authority
DE
Germany
Prior art keywords
valves
tube
peristaltic pump
heart
preventing damage
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.)
Pending
Application number
DE2423673A
Other languages
English (en)
Inventor
Juan N Walterspiel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2423673A priority Critical patent/DE2423673A1/de
Publication of DE2423673A1 publication Critical patent/DE2423673A1/de
Pending 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
    • F04B43/082—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
    • 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
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/161—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel mechanically acting upon the outside of the patient's blood vessel structure, e.g. compressive structures placed around a vessel
    • 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
    • A61M60/284—Linear peristaltic 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
    • A61M60/20—Type thereof
    • A61M60/289—Devices for mechanical circulatory actuation assisting the residual heart function by means mechanically acting upon the patient's native heart or blood vessel structure, e.g. direct cardiac compression [DCC] 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
    • A61M60/40—Details relating to driving
    • A61M60/424—Details relating to driving for positive displacement blood pumps
    • A61M60/427—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic
    • 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
    • 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
    • F04B43/10—Pumps having fluid drive

Description

  • FUNKTIONSSCHEHA EINER VENTILLOSEN, PERISTALTISCHEN HERZFULIE : Da alle gängigen künstlichen Herzen mit Hlappen arbeiten, die das slut stark schädigen, schlage sich Versuche mit einer peristaltischen pumpe vor, die ohne solche Klappen auskommt.
  • Das pumpprinzip ist in Abb. II dargestellt T1-T3 bed. fortlaufende Zeit.
  • Die peristaltischen Wellen werden in fortlaufender weise durch Druck u. Log an der äußeren oberfläche eines iilil;onschlauch;s erzeugt.
  • Abb. I zeigt das frinzip durch welches abwechselnd eine hydraulische Flüssigkeit durch die ffnungen in einem ärßeren Metallrohr Abb. III a-b (c ist die fertige pumpe von außen) eingepumpt u. abgesaunt wird.
  • Der ilikonschlauch wird dabei ähnlich wie bei einer ollpuuye in in pumprichtung fort- laufenden Wellen komprimiert.
  • Die Ventile α, die entweder über oder Unterdruck durch die Öffnungen lassen werden nach folgendem Zeitplan elcktrisch gesteuert : Ziffer= Nr des Ventils (Abb I) Urandete Ziffer= offen für ö.Druck Einfache Ziffer= offen für u.Druck Der venöse u. arterielle Schenkel des Herzens werden nach Abb.IV gebaut, pumprichtungen u.Zeitvolumen sind in Abhängigkeit neben dem schema angegeben.
  • probleme, die nur experimentell gelöst werden können sind die Größe der l'umpen sowie das Laterial des Innenschlauches (Blutgerinnung u. überwachsen von Zellen)

Claims (1)

  1. Patentanspruch zu P. 24 23 673.5 Vertilklappenlose peristaltische Herzpumpe.
    Dadurch gekennzeichnet, daß Flüssigkeit durch peristaltikähnliche Wellen, ciie auf einem Schlauch aus elastischem Material durch alternierendes an u. absaugen einer diesen Schlauch umgebenden hydraulischen Flüßigkeit hervorgerufen werden, in einer Richtung gepumpt werden kann.
    Leerseite
DE2423673A 1974-05-15 1974-05-15 Ventilklappenlose peristaltische herzpumpe Pending DE2423673A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2423673A DE2423673A1 (de) 1974-05-15 1974-05-15 Ventilklappenlose peristaltische herzpumpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2423673A DE2423673A1 (de) 1974-05-15 1974-05-15 Ventilklappenlose peristaltische herzpumpe

Publications (1)

Publication Number Publication Date
DE2423673A1 true DE2423673A1 (de) 1975-11-27

Family

ID=5915669

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2423673A Pending DE2423673A1 (de) 1974-05-15 1974-05-15 Ventilklappenlose peristaltische herzpumpe

Country Status (1)

Country Link
DE (1) DE2423673A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039057A1 (de) * 1980-05-12 1981-11-19 Consiglio Nazionale Delle Ricerche, Roma Herzpumpe fuer die blutzirkulation ausserhalb des koerpers eines lebewesens
US4625712A (en) * 1983-09-28 1986-12-02 Nimbus, Inc. High-capacity intravascular blood pump utilizing percutaneous access

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039057A1 (de) * 1980-05-12 1981-11-19 Consiglio Nazionale Delle Ricerche, Roma Herzpumpe fuer die blutzirkulation ausserhalb des koerpers eines lebewesens
US4625712A (en) * 1983-09-28 1986-12-02 Nimbus, Inc. High-capacity intravascular blood pump utilizing percutaneous access

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Legal Events

Date Code Title Description
OGA New person/name/address of the applicant
OHJ Non-payment of the annual fee