×

Artificial heart and method of pumping blood

  • US 4,213,207 A
  • Filed: 04/07/1978
  • Issued: 07/22/1980
  • Est. Priority Date: 04/07/1978
  • Status: Expired due to Term
First Claim
Patent Images

1. A construction having utility as a replacement for one chamber of a human heart, comprising:

  • (a) a hollow and firm cylindrical member of non-magnetic material having a length of more than one inch, with the two ends of the cylindrical member being closed, and there being an inlet port and an outlet port at each end of the cylindrical member;

    (b) a check valve mounted in association with each of the ports, with one of the check valves at each end being oriented so as to admit blood to the cylindrical member in response to a low pressure therein, and the other check valve at a given end of the cylindrical member being oriented to discharge blood from the cylindrical member in response to a high pressure therein;

    (c) a movable member sized to translate within the cylindrical member and being configured as a ball that is slightly smaller in diameter than the inner diameter of the cylindrical member, whereby translating the ball at a substantial speed will cause blood ahead of the ball to be pushed forwardly; and

    (d) means for causing the movable member to translate within the cylindrical member at a desired time.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×