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Blood infusion pump

  • US 4,430,078 A
  • Filed: 04/24/1981
  • Issued: 02/07/1984
  • Est. Priority Date: 04/24/1981
  • Status: Expired due to Fees
First Claim
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1. In combination with a blood bag, a blood infusion pump comprising:

  • a housing, said housing including a storage chamber for locating said blood bag;

    pressure applying means for applying an evenly distributed force to said blood bag; and

    pressure supply means for supplying a pressurized fluid through a conduit assembly to said pressure applying means, said pressure supply means comprising a container containing a quantity of pressurized fluid, said container being removable and replaceable within said housing, a valve assembly connected to said conduit assembly, said valve assembly to connect with said container to thereby supply the pressurized fluid from said container into said conduit assembly, said valve assembly being continuously spring biased into an airtight relationship with said container, said valve assembly being movable a limited amount in respect to said conduit assembly so as to positively engage in said airtight relationship with said container, whereby said pressurized fluid is conducted to said pressure applying means which causes blood to be discharged from said blood bag.

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