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Infuser

  • US 5,984,894 A
  • Filed: 05/20/1997
  • Issued: 11/16/1999
  • Est. Priority Date: 04/18/1991
  • Status: Expired due to Term
First Claim
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1. An infusion system comprising:

  • a housing for receiving a replaceable unit; and

    a self-contained, replaceable unit having;

    a reservoir containing a liquid to be infused, an infusion line communicating with said reservoir, a pump for pumping liquid from said reservoir out through said infusion line, an energy reservoir for operating said pump, and a memory for storing a value representing the amount of liquid remaining in said reservoir; and

    wherein said housing and replaceable unit further include a mating coupling for releasably securing said replaceable unit within said housing so as to allow said replaceable unit to be readily removed and replaced when desired, and wherein a portion of said infusion line extends to the exterior of said housing.

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