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Perfusion circuit for cardiopulmonary bypass with air removal system

  • US 20050085762A1
  • Filed: 11/18/2004
  • Published: 04/21/2005
  • Est. Priority Date: 03/31/2003
  • Status: Abandoned Application
First Claim
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1. A cardiopulmonary bypass circuit for oxygenating blood outside a patient and circulating oxygenated blood through the patient, said circuit comprising:

  • a) a venous line;

    b) a blood reservoir in fluid communication and in series with said venous line;

    c) a perfusion pump in fluid communication and in series with said blood reservoir;

    d) a blood oxygenator in fluid communication and in series with said pump;

    e) a shunt placing said venous line and said pump in fluid communication and bypassing said blood reservoir; and

    f) structure external said reservoir which prevents any store of blood in said blood reservoir from being pulled by said perfusion pump when said blood reservoir is excluded from said circuit and said perfusion pump draws blood from the patient through said shunt such that said perfusion pump pulls blood from said venous line while bypassing the any store of blood in said blood reservoir. g) an air removal means provided between said shunt and said perfusion pump which removes air bubbles from blood circulating in said circuit.

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