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Seal assembly for elastomeric infusion pump

  • US 7,322,961 B2
  • Filed: 01/15/2003
  • Issued: 01/29/2008
  • Est. Priority Date: 01/15/2003
  • Status: Active Grant
First Claim
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1. A method of assembling an infusion apparatus, comprising:

  • providing a support member at least partially defining an inlet and an outlet;

    positioning an elastic sleeve over the support member, thereby defining a variable-volume fluid reservoir between the support member and the sleeve, the inlet and the outlet communicating with the fluid reservoir;

    providing a pair of spring clips, each clip having a first end, a second end and a generally annular body portion extending between the first and second ends;

    applying an opposing force to each of the first and second ends of one of the spring clips to deflect the spring clip into a deflected position and passing the spring clip over a first end of the support member and sleeve, releasing the first and second ends to permit the body portion to contact the sleeve and create a seal between the sleeve and the support member and thereby define a first end of the fluid reservoir;

    applying an opposing force to each of the first and second ends of the other of the spring clips to deflect the spring clip into a deflected position and passing the spring clip over a second end of the support member and the sleeve, releasing the first and second ends to permit the body portion to contact the sleeve and create a seal between the sleeve and the support member and thereby define a second end of the fluid reservoir;

    wherein the first and second ends of the spring clip have an initial length, additionally comprising the step of trimming the first and second ends to a shorter length after the respective spring clip is positioned onto the support member and sleeve.

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