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Auto-inflating catheter cuff

  • US 5,197,952 A
  • Filed: 06/13/1990
  • Issued: 03/30/1993
  • Est. Priority Date: 06/13/1990
  • Status: Expired due to Term
First Claim
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1. A perfusion catheter which is to be used for introduction into a body cavity comprising:

  • (a) a proximal end for introduction of fluid,(b) a distal end for introduction into a body cavity,(c) a connecting tube between said proximal and distal ends comprised of a flexible material having a central lumen connecting said ends,(d) an inflatable cuff enclosing part of said tube adjacent the distal end of the catheter and sealed at each end of said tube,(e) a non-removable lumen plug in said central lumen positioned axially within that part of said tube enclosed by said cuff and between the ends of said cuff,(f) respective openings in said lumen within and at the proximal and distal ends of said cuff to allow flow from said lumen through said cuff to the distal end of said lumen, and means distally of said cuff to restrict the flow through said cuff to create inflating pressure in said cuff.

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