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Emergency bypass system

  • US 4,540,399 A
  • Filed: 02/01/1983
  • Issued: 09/10/1985
  • Est. Priority Date: 02/01/1983
  • Status: Expired due to Fees
First Claim
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1. In a simplified general purpose emergency bypass system having a cardiopulmonary support apparatus withdrawing venous blood from a patient and for patient arterial return thereof, the improvement which consists solely of the combination of:

  • a closed circuit of components arranged in a series relationship between the patient'"'"'s venous blood supply and arterial blood return, said circuit having a static extracorporeal fluid volume;

    said circuit components consisting of a non-occlusive blood pump, an oxygenator, and interconnecting static extracorporeal volume means providing continuous fluid communication between said components, and said circuit including bubble trapping means;

    a venous cannula;

    an arterial cannula;

    said interconnecting means operably coupled to said venous cannula for withdrawing venous blood into one end of said circuit, and to said arterial cannula at the other end of said circuit for returning blood to the patient; and

    said closed circuit including a bypass loop selectively coupling said interconnecting means together between said cannulae for priming and air purging purposes in said circuit.

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