The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 1990
Filed:
Sep. 01, 1989
Lynn M Kaczmarek, Buffalo Grove, IL (US);
Paul O Kay, Barrington, IL (US);
George M Nowak, Lake Villa, IL (US);
Barry L Schneider, Deerfield, IL (US);
Hollister Incorporated, Libertyville, IL (US);
Abstract
As ostomy appliance having a collection pouch and a flexible faceplate, the faceplate including an outer ring of thin, microporous sheet material and an inner ring of flexible, thermoplastic film impervious to gases and body fluids. The outer microporous ring surrounds the inner ring so that their adjacent margins overlap and are sealed to each other. The faceplate also includes a barrier ring secured to the inner marginal portion of the microporous ring on the side opposite from the attachment of the impervious inner ring. A fluid-impervious annular seal is provided between the impervious inner ring and the barrier ring at a location radially inwardly from the microporous ring, thereby securing the parts together and isolating the inner margin of the microporous ring from contact by stomal fluids. In preferred embodiments, the faceplate may include a relatively rigid, convex pressure ring and the impervious inner ring may extend a substantial distance radially inwardly from the seal with the inner margin of that ring secured to an outwardly extending thermoplastic web that in turn is connected to a faceplate coupling ring.