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Ostomy appliance and convex pressure ring assembly therefor

  • US 4,834,731 A
  • Filed: 11/19/1987
  • Issued: 05/30/1989
  • Est. Priority Date: 11/19/1987
  • Status: Expired due to Term
First Claim
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1. An ostomy appliance comprising a collection pouch formed of plastic film having a wall provided with a stoma opening;

  • a flexible and generally planar faceplate having proximal and distal surfaces and having an opening therethrough aligned with said stoma opening of said pouch;

    adhesive means along said proximal surface for adhesively securing said faceplate to peristomal skin surfaces of a wearer;

    connecting means connecting said distal surface of said faceplate to said wall of said pouch about said stoma opening;

    wherein the improvement comprisesa pressure ring assembly including a relatively rigid support ring having an annular wall with inner and outer wall portions;

    said inner wall portion having a central opening aligned with said openings of said faceplate and pouch and having a convex proximally-directed curvature;

    means securing the outer wall portion of said support ring to the proximal surface of said faceplate about said faceplate opening;

    an intermediate ring of resilient, moisture-impermeable, thermoformable material secured to and extending over the convex proximal surface of said support ring; and

    a barrier ring composed of soft, formable, moisture-absorbing skin barrier material of dry and wet tack secured to and covering the proximal surface of said intermediate ring.

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