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Portable infusion device

  • US 5,059,182 A
  • Filed: 05/16/1989
  • Issued: 10/22/1991
  • Est. Priority Date: 04/12/1989
  • Status: Expired due to Term
First Claim
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1. A portable infusion device which can be user operated almost anywhere for administration of a solution at a substantially steady flow rate from storage, the device comprising in combination a flow restrictor and a propulsion system using a pressure medium carried in a flexible extendible container surrounding the pressure medium and solution for causing the solution to be administered to a patient at a substantially steady rate of flow through the flow restrictor, the volume of the pressure medium being at least about five times the volume of the solution.

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