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Transfusion pump

  • US 5,088,904 A
  • Filed: 07/20/1990
  • Issued: 02/18/1992
  • Est. Priority Date: 07/24/1989
  • Status: Expired due to Term
First Claim
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1. A transfusion pump which comprises:

  • a housing disposed to oppose a tube that is to be filled with a liquid;

    a plurality of fingers mounted on said housing along a liquid supply direction for urging said tube;

    pivoting means for pivotally supporting said fingers so as to reciprocate in a direction wherein said fingers are capable of urging said tube;

    cam engaged with said fingers;

    driving means for sequentially driving said cams so that said fingers which are engaged with the corresponding cams sequentially urge said tube in the liquid supply direction; and

    a biasing member, arranged to be engaged with said fingers, for biasing said fingers to be in contact with the corresponding cams, said biasing member comprising elastic pieces integrally formed with said fingers, respectively, distal ends of said elastic pieces being in elastic contact with said housing.

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