Ostomy coupling

• US 5,041,102 A
• Filed: 01/18/1990
• Issued: 08/20/1991
• Est. Priority Date: 02/03/1989
• Status: Expired due to Term

• Current Assignee: E R Squibb & Sons Incorporated
• Original Assignee: E R Squibb & Sons Incorporated
• Inventors: Steer, Peter L., Auld, David J.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): Clarke, R.
• Application Number:
  US07/465,853
• Time in Patent Office: 579 Days
• Field of Search: 604/332, 604/337-339, 604/342
• US Class Current: 604/338
• CPC Class Codes: A61F 2005/4486 with operable locking ring
• CPC Class Codes: A61F 5/448 Means for attaching bag to seal ring

Abstract

A coupling element system for an ostomy bag including a bag-side coupling element having a stomal orifice surrounded by a channel shaped member, a body-side coupling element having a stomal orifice surrounded by a rib-like member which can make snap-fit engagement with the channel shaped member, and a locking member. The latter member has radially inwardly deformable arms and is rotatable relative to the body-side coupling. The deformable arms are shaped and positioned so that upon rotation of the locking member in one rotary direction relative to the body-side coupling element they are deformed radially inwardly and over-lie a portion of the bag-side coupling element.

The locking member may be generally annular with the arms arcuate in shape each with a blade portion and a leg portion which connects the blade portion to the remainder of the locking member.

Claims

1. A coupling system for an ostomy bag including a bag-side coupling element having a stomal orifice surrounded by a channel shaped member, a body-side coupling element having a stomal orifice surrounded by a rib-like member which can make snap-fit engagement with the channel shaped member, and a locking member having radially inwardly deformable arms and which is rotatable relative to the body-side coupling, the deformable arms being shaped and positioned so that upon rotation of the locking member in one rotary direction relative to the body-side coupling element they are deformed radially inwardly and over-lie a portion of the bag-side coupling element.

2. A system according to claim 1 in which the locking member is generally annular and the arms are arcuate in shape each with a blade portion and a leg portion which connects the blade portion to the remainder of the locking member.

3. A system according to claim 1 in which a plurality of arms are spaced around and form the major part of the boundary of a central stomal aperture in the locking member.

4. A system according to claim 2 in which a plurality of arms are spaced around and form the major part of the boundary of a central stomal aperture in the locking member.

5. A system according to claim 3 in which the body-side coupling has upstanding lugs positioned to engage a part of the radially outer surface of each blade portion, these lugs being elongated in a circumferential direction and located so that they are at a small angle to the tangential direction.

6. A system according to claim 4 in which the body-side coupling has upstanding lugs positioned to engage a part of the radially outer surface of each blade portion, these lugs being elongated in a circumferential direction and located so that they are at a small angle to the tangential direction.

7. A system according to claim 5 in which the lugs have an inturned roof portion which over-lie the blade portions.

8. A system according to claim 6 in which the lugs have an inturned roof portion which over-lie the blade portions.

9. A system according to claim 4 in which the blade portions of the arms have their radially inner surfaces shaped so that in the locked position these inner surfaces together define a cylindrical surface of diameter substantially equal to the outer diameter of said channel member of the bag-side coupling element.

10. A system according to claim 5 in which the blade portions of the arms have their radially inner surfaces shaped so that in the locked position these inner surfaces together define a cylindrical surface of diameter substantially equal to the I.D. of the outer channel wall of the bag-side coupling element.

11. A system according to claim 6 in which the blade portions of the arms have their radially inner surfaces shaped so that in the locked position these inner surfaces together define a cylindrical surface of diameter substantially equal to the I.D. of the outer channel wall of the bag-side coupling element.

12. A system according to claim 7 in which the blade portions of the arms have their radially inner surfaces shaped so that in the locked position these inner surfaces together define a cylindrical surface of diameter substantially equal to the I.D. of the outer channel wall of the bag-side coupling element.