Ostomy devices

• US 3,897,781 A
• Filed: 09/28/1973
• Issued: 08/05/1975
• Est. Priority Date: 09/28/1973
• Status: Expired due to Term

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: Elayne R. Marsan
• Inventors: Marsan, Elayne R.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Layton, Henry S.
• Application Number:
  US05/401,696
• Time in Patent Office: 676 Days
• Field of Search: 128/283,295
• US Class Current: 604/338
• CPC Class Codes: A61F 5/443 having adhesive seals for securing to the body, e.g. of hydrocolloid type, e.g. gels, starches, karaya gums adhesives or sealing pads therefor A61L24/00

Abstract

Disclosed are ostomy appliances including a circular or oblongshaped gasket with a tubular annular flange extending from a central aperture therein, the flange being dimensioned in such a manner as to reduce substantially the accumulation of liquid waste materials on the inside lower surface of the flange and thereby to diminish the likelihood of deterioration of a sealing means, typically in the form of a sealing ring, disposed between the gasket and its user and to avoid irritation of the exposed tissue of the user. Also disclosed are ostomy appliance combinations including smoothed surfaces on the flange circumferential edge portions, corrugated front and/or back gasket surfaces, and/or protective film materials adapted to provide a snug fitting stoma-receiving passageway therein.

Claims

1. An ostomy appliance for use with an expendable drainage pouch, said appliance comprising:

a base gasket having substantially planar front and back surfaces including, a centrally disposed aperture, means for orienting and supporting an expendable pouch on said gasket planar front surface about said aperture, said orienting and supporting means including, a tubular flange, having operative top and bottom portions as well as inner and outer surfaces, annularly disposed about said aperture on said gasket planar front surface, the operative top portion of said flange being dimensioned to extend outwardly from said surface a distance sufficient to permit orientation of said pouch about said aperture and to support saId pouch upon the outer surface thereof, the operative bottom portion of said flange being dimensioned to extend outwardly from said surface a lesser distance then said top portion, said lesser distance being sufficient to permit orientation of said pouch about said aperture and insufficient to permit substantial accumulation of waste material on the inner surface thereof, the distance of outward extension of said tubular flange from said gasket planar front surface diminishing uniformly from top to bottom portions; and

means for mounting said base gasket with said back surface adjacent the abdominal wall of the user.

2. An ostomy appliance as set forth in claim 1 including means for diminishing the liklihood of damage to stoma tissue of the user, said means comprising a smoothly rounded surface formed in said gasket at the periphery of said aperture.