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Methods and apparatus for autologous blood recovery

  • US 4,976,682 A
  • Filed: 11/16/1988
  • Issued: 12/11/1990
  • Est. Priority Date: 11/23/1987
  • Status: Expired due to Fees
First Claim
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1. A system for collecting shed blood from a patient and for subsequently reintroducing that blood to the patient, comprising:

  • means for introducing a controlled stream of fluid to a wound site containing blood;

    means for removing the resulting mixture of blood and fluid from the would site such that substantially only the mixture is removed and such that significant amounts of air are not removed with said mixture, said removal means comprising a suction tube in communication with means for causing suction within said suction tube, and an air detector for detecting air in the mixture of blood and fluid removed, said air detector being in communication with said suction means such that suction can be varied based upon the presence or absence of air in the mixture;

    means for removing particulate impurities from the mixture;

    means for removing excess fluid from the mixture such that substantially only blood remains; and

    means for reinfusing the blood to the patient.

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