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Orthopedic autotransfusion system

  • US 5,279,550 A
  • Filed: 12/19/1991
  • Issued: 01/18/1994
  • Est. Priority Date: 12/19/1991
  • Status: Expired due to Term
First Claim
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1. A medical device for withdrawing blood from the site of an operation by a tube which has been connected for drainage therefrom comprising:

  • a reservoir with walls of sufficient strength to resist collapse under a given vacuum;

    an inlet port of said reservoir for connection of the tube connected to the operation site;

    an outlet means from said reservoir;

    a hand operated piston type displacement pump in connected relationship to said reservoir for withdrawing air from said reservoir and creating an attendant vacuum,means for reciprocating said piston type displacement pump; and

    ,means for checking the introduction of air into the reservoir after a displacement thereof has taken place.

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