Ostomy system utilizing a split ring to engage a two element coupling assembly

• US 4,850,985 A
• Filed: 08/01/1988
• Issued: 07/25/1989
• Est. Priority Date: 08/01/1988
• Status: Expired due to Term

• Current Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Original Assignee: E R Squibb & Sons Incorporated
• Inventors: Edwards, John V., Freeman, Frank M.
• Primary Examiner(s): KRUTER, JEROME
• Application Number:
  US07/226,920
• Time in Patent Office: 358 Days
• Field of Search: 604/332-345
• US Class Current: 604/339
• CPC Class Codes: A61F 2005/4486 with operable locking ring
• CPC Class Codes: A61F 5/448 Means for attaching bag to seal ring

Abstract

An ostomy system in which a third element is employed to absorb pressure when an ostomy pouch is mechanically secured to a body side portion adhesively secured to the body. The third element is a split-ring which can be secured around a body side rib coupling member. The split-ring includes an edge portion that fits in a groove in the outer rib wall and includes an angled outwardly projecting rim so that one or more fingers can be inserted between the rim and the body side surface while the pouch is coupled. Following coupling of the pouch, the split-ring can be removed to leave a two-piece ostomy system in place on the body.

Claims

1. An ostomy system comprising a body side portion, an ostomy pouch portion, and a split-ring means wherein said body side portion comprises an adhesive pad having an opening to fit said pad around the stoma, a male coupling member affixed to said pad about said opening comprising a flange having a rib of closed loop form projecting from said flange outwardly from the body of the user, said rib having a deflectible sealing strip, and the outer rib wall above said flange having a groove, said ostomy pouch formed from two webs of polymeric material sealed together along at least a substantial portion of their periphery, a stomal openign in one of said pouch webs, a channel shaped coupling member of closed loop form affixed to said web about said stomal opening, said channel dimensioned to form a seal with said rib coupling member, and a split-ring means comprising a substantially flat portion having an inwardly extending stepped down edge means dimensioned to fit wwithin said groove in the outer wall of said rib coupling member and an outwardly extending stepped up edge leading to an outwardly projecting angled rim, and means for temporarily securing said split-ring means in a closed condition wherein said ring means can be secured around said rib and the user during the coupling step can place one or more fingers between said outwardly extending angled rim and the surface of said adhesive pad.

2. The ostomy system of claim 1 further comprising a second split in the flat portion and inwardly extending stepped down edge radially opposite said split through said entire ring means.

3. The ostomy system of claim 2 wherein the outwardly extending rim of said split-ring means has ears on both sides of said complete split to facilitate securing said split-ring means in a closed condition.

4. The ostomy system of claim 3 wherein said means for securing said split-ring means in a closed condition is a post projecting from a flange attached to one of said rim ears dimensioned to fit through an aperture in the other rim ear.

5. The ostomy system of claim 1 wherein said rim extends outwardly from said stepped up edge portion of said split-ring means at an angle of about 35°

.

6. The ostomy system of claim 1 wherein said adhesive pad has a thin polymeric film to which said male coupling member flange is affixed.

7. The ostomy system of claim 1 wherein said rib coupling member has a rim extending in a direction opposite said deflectible seal strip and one inner wall of said channel coupling member has a complementary shaped rim.

8. The method of coupling an ostomy pouch to a body side portion wherein:

said body side portion comprises an adhesive pad, a male coupling member affixed to said pad comprising a flange having a rib of closed loop form projecting outwardly perpendicularly from said flange, said rib having a deflectible seal strip, and the outer rib wall above said flange having a groove;

said ostomy pouch formed from two webs of polymeric material sealed together along at least a substantial portion of their periphery, a stomal opening in one of said pouch webs, a channel shaped coupling member of closed loop form affixed to said web about said stomal opening;

and a split-ring comprising a substantially flat portion having an inwardly extending stepped down edge and an outwardly extending stepped up edge leading to an outwardly projecting angled rim, and means for temporarily securing said split-ring in a closed condition;

wherein the user;

(a) cuts or expands an opening in said adhesive pad so as to fit said pad about the stoma provided that said opening is within the confines of said male loop coupling member so that the stoma protruding through said opening will be encircled by said rib coupling element;

(b) presses the adhesive pad against the body;

(c) expands the split-ring into an open condition and slides the split-ring about said coupling rib so that the stepped down edge of the flat portion of the split-ring is received in the groove in the outer rib wall;

(d) manipulates the split-ring so as to secure the split-ring in a closed condition; and

(e) couples the pouch to the body side by pressing the channel member onto the rib member with the thumbs while one or more fingers are placed between the angled rim and the surface of the adhesive pad to absorb the force of coupling.

9. The method of claim 8 further comprising after the pouch has been coupled to the body side:

(f) manipulating said split ring to unsecure the split-ring; and

(g) removing the split ring from the body side to leave an assembled two piece ostomy system in place on the body of the user.