Membrane stoma seal for ostomy patients

• US 3,878,847 A
• Filed: 03/11/1974
• Issued: 04/22/1975
• Est. Priority Date: 03/11/1974
• Status: Expired due to Term

• Current Assignee: Arthur E. Marsan
• Original Assignee: Arthur E. Marsan
• Inventors: Marsan, Arthur E.
• Primary Examiner(s): Medbery, Aldrich F.
• Application Number:
  US05/449,628
• Time in Patent Office: 407 Days
• Field of Search: 128/283,294,295,275
• US Class Current: 604/338
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence
• CPC Class Codes: A61L 2400/14 Adhesives for ostomy devices
• CPC Class Codes: A61L 28/0015 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61L 28/0026 Mixtures of macromolecular compounds
• CPC Class Codes: A61L 28/0042 Plasticisers
• CPC Class Codes: C08L 83/04 Polysiloxanes

Abstract

The invention provides a natural or synthetic membrane for use as a stoma seal in ostomy conditions. The membrane is very thin, very flexible, and very elastic. It is provided with a centrally located opening smaller than the stoma, whereby the membrane will easily stretch over the stoma and assume the shape of the stoma at the area of contact around the stoma, thereby forming a leakproof seal without strangulating or injuring the stoma. The invention also provides means for supporting the thin membrane at its circumference in a manner to isolate the membrane seal from excessive external stresses and whereby the membrane is supported so as to only be subjected to the stress applied by inserting the stoma through the membrane opening. The advantages of this membrane stoma seal are described in the specification.

Claims

1. A membrane for use as a stoma seal for a pouch in ostomy conditions, the membrane comprising a sheet of extremely thin material having a high degree of elasticity and a thinness functioning as of approximately about one thousanth of an inch to ten thousanths of an inch throughout its area, a means for embracing and sealing the stoma comprising an opening in its center for receiving the stoma, said opening being smaller in diameter than the diameter of the stoma to which the membrane is to be applied and defining a band-like means around the stoma when applied thereto so that the membrane maintains a seal with the outer circumference of the stoma wall completely around the stoma.

2. For use in colostomy conditions, the subject matter set forth in claim 1, in which the membrane includes the ingredients vinyl chloride QYKV-2 and dioctyl phatalate.

3. For use in colostomy conditions, the subject matter set forth in claim 1, in which the membrane includes the ingredients silastic E RTV a silicone rubber compound supplied by Dow Corning Corporation, Midland, Michigan, one gram of silastic E RTV catalyst, and one gram silastic RTV thinner.

4. For use with a body fluid receiving means in colostomy conditions, a membrane for application to the patient'"'"''"'"'s the stoma, the throughout its area being of a thinness approximating one thousanth of an inch to ten thousanths of an inch, the membrane being of waterproof material that is soft, flexible, and very elastic, the membrane having in its center an opening smaller in diameter than the diameter of the stoma so that the central area of the membrane will stretch to provide a band-like contact seal means around the stoma when applied thereto and maintain sealing engagement with the circumference of the stoma in a substantial area completely around the wall of the stoma.

5. For use in colostomy conditions, a membrane as set forth in claim 4, and means for applying the membrane to a patient in a manner to provide a membrane area peripherally around said central area serving by its extreme thinness and elasticity to allow relative movements between said applying means and the stoma seal at the central area of the stoma, thereby providing a leak-proof stoma seal without strangulating or injuring the stoma and its seal under the varying conditions incident to use.

6. A membrane stoma seal as set forth in claim 1, in combination with means providing for leak-proof attachment of the membrane circumferentially thereof to a pouch.

7. A membrane stoma seal as set forth in claim 1, in combination with means providing a substantially rigid support for the membrane circumferentially thereof, and means for attaching said support to a pouch with the stoma extending into the pouch, whereby normal strains on the pouch when it is worn on a patient will not be transferred beyond said support in a manner to disturb the seal of the membrane with the stoma.

8. A membrane stoma seal as set forth in claim 1, in combination with means to isolate the membrane seal from external stresses when it is worn on a patient.

9. A membrane stoma seal as set forth in claim 1, in combination with a pouch and means for supporting the membrane in co-active relation with the pouch and with the membrane positioned so that the seal will only be subjected to the stress applied by inserting the stoma into the membrane opening.

10. For use in ostomy conditions, a membrane as set forth in claim 1, the membrane having a circumferential strengthening rim of the same material as the membrane and integral therewith.