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Medication delivery device and method of construction

  • US 5,551,849 A
  • Filed: 04/29/1994
  • Issued: 09/03/1996
  • Est. Priority Date: 04/29/1994
  • Status: Expired due to Term
First Claim
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1. A medication delivery device comprising:

  • a housing,a reservoir within said housing, said reservoir having peripheral pleated side portions bounded by an end terminal and an opposing surface portion, said reservoir being movable from an expanded position to a compressed position, said end terminal having a surface portion which is indented in the direction of said opposing surface portion such that when said reservoir is in the compressed position there is substantially no separation between said indented surface portion and said opposing surface portion, said indented surface lying generally between said pleated side portions such that when said reservoir is in the compressed position nearly all of the fluid medication in the reservoir is evacuated by said indented surface,a reservoir refill port in fluid communication with said reservoir,an outlet port, means connected between said reservoir and said outlet port for dispensing medication from said reservoir through said outlet port.

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