Ostomy bag magnetic coupling

• US 4,636,205 A
• Filed: 10/11/1984
• Issued: 01/13/1987
• Est. Priority Date: 10/13/1983
• Status: Expired due to Fees

• Current Assignee: E R Squibb & Sons Incorporated
• Original Assignee: Craig Medical Products Limited
• Inventors: Steer, Peter L.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): Kruter, J. L.
• Application Number:
  US06/659,936
• Time in Patent Office: 824 Days
• Field of Search: 604/332-345, 252/62.63, 273/235
• US Class Current: 604/338
• CPC Class Codes: A61F 5/448 Means for attaching bag to seal ring

Abstract

A two part coupling for joining an ostomy bag to a pad or to a faceplate is characterized in that the two cooperating coupling parts are held together in a detachable manner by magnetic force.

Claims

1. A coupling for joining an ostomy bag to a pad or face plate comprising:

a body-side coupling part having a radially extending substantially planar annular surface and a tubular portion which extends away from the body of the wearer, said tubular portion comprising a thicker wall portion connected to a thinner wall portion; and

a bag-side coupling part having a tubular portion which is adapted for mating engagement with and fits over said body-side tubular portion and a radially extending substantially planar annular surface which is held together with said body-side annular surface by a magnetic sheet means providing magnetic forces when said coupling parts are matingly engaged, said bag-side coupling part further comprising a flexible sealing skirt coupled to said bag-side tubular portion and extending inwardly to engage the thinner wall portion of said body-side tubular portion, said thinner wall portion comprising a projection means over which the flexible sealing strip is deflected when the coupling parts are engaged for providing mechanical security against inadvertent disassembly of the coupling parts, whereby a liquid seal is provided.

2. The invention of claim 1 wherein said magnetic sheet means comprise by a permanent magnetic material carried by one of said bag-side or body-side annular surfaces and ferromagnetic material carried by the other, whereby said bag-side and body-side annular surfaces are held together by magnetic forces when said coupling parts are matingly engaged.

3. The invention of claim 2 wherein said permanent magnetic material comprises a flexible magnetic sheet bonded to said body-side coupling part and said ferromagnetic material comprises a flexible sheet of plastic material impregnated with ferromagnetic material bonded to said bag-side coupling part.

4. The invention of claim 3 wherein said flexible magnetic sheet comprises a fine magnetic powder including barium ferrite loaded into a thermoplastic binder.

5. The invention of claim 2 wherein said permanent magnetic material comprises a flexible magnetic sheet bonded to said bag-side coupling part and said ferromagnetic material comprises a flexible sheet of plastic material impregnated with ferromagnetic material bonded to said body-side coupling part.

6. The invention of claim 5 wherein said flexible magnetic sheet comprises a fine magnetic powder including barium ferrite loaded into a thermoplastic binder.