Ostomy appliance coupling ring construction
First Claim
1. A coupling for detachably connecting an ostomy faceplate to an ostomy pouch, said coupling including first and second coupling rings formed of flexible thermoplastic material;
- said first coupling ring having an annular body portion merging along its inner perimeter with a tubular neck portion extending axially away from said body portion;
said neck portion having an outer sealing surface and having a free end terminating in an annular and radially-outwardly projecting rim;
said second ring also having an annular body portion and having an inner collar portion detachably receiving said neck portion, with said collar portion extending axially away from the body portion of said second ring in generally the same direction as said neck portion and with the inside of said collar portion sealingly engaging the outer surface of said neck portion;
wherein the improvement comprisessaid annular body portion of said first ring being generally planar and defining an annular latching shoulder extending about the outer perimeter thereof;
said body portion of said second ring also being generally planar and having an annular latching rib extending about the outer periphery thereof in a generally axial direction opposite from the direction of said collar portion;
said latching rib, along with the remainder of said body portion of said second ring, defining a latching recess detachably receiving and retaining the shoulder of said first ring.
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Accused Products
Abstract
A coupling for an ostomy appliance that detachably joins an ostomy bag to a faceplate capable of being adhesively secured to a patient'"'"'s skin about a stoma opening. Each coupling ring is formed of flexible and resilient thermoplastic material, with one of the rings having an axially-extending frusto-conical neck portion and the other ring having a frusto-conical collar portion detachably receiving and sealingly engaging the neck portion. Primary latching is achieved in an annular zone spaced a substantial distance radially outwardly from the area of sealing engagement between the neck and collar portions, such latching action being provided by a shoulder extending about the outer periphery of one of the rings and a latching rib, defining a shoulder-receiving recess, extending about the outer periphery of the other ring.
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Citations
21 Claims
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1. A coupling for detachably connecting an ostomy faceplate to an ostomy pouch, said coupling including first and second coupling rings formed of flexible thermoplastic material;
- said first coupling ring having an annular body portion merging along its inner perimeter with a tubular neck portion extending axially away from said body portion;
said neck portion having an outer sealing surface and having a free end terminating in an annular and radially-outwardly projecting rim;
said second ring also having an annular body portion and having an inner collar portion detachably receiving said neck portion, with said collar portion extending axially away from the body portion of said second ring in generally the same direction as said neck portion and with the inside of said collar portion sealingly engaging the outer surface of said neck portion;
wherein the improvement comprisessaid annular body portion of said first ring being generally planar and defining an annular latching shoulder extending about the outer perimeter thereof;
said body portion of said second ring also being generally planar and having an annular latching rib extending about the outer periphery thereof in a generally axial direction opposite from the direction of said collar portion;
said latching rib, along with the remainder of said body portion of said second ring, defining a latching recess detachably receiving and retaining the shoulder of said first ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- said first coupling ring having an annular body portion merging along its inner perimeter with a tubular neck portion extending axially away from said body portion;
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12. A coupling for detachably connecting an ostomy faceplate to an ostomy pouch;
- said coupling including first and second coupling rings formed of flexible and resilient thermoplastic material;
said first coupling ring having an annular body portion merging along its inner perimeter with a tubular neck portion extending axially away from said body portion;
said neck portion having an outer sealing surface and having a free end terminating in an annular and radially-outwardly projecting rim;
said second ring also having an annular body portion and having an inner collar portion detachably receiving said neck portion, with said collar portion extending axially away from the body portion of said second ring in generally the same direction as said neck portion, and with the inner surface of said collar portion sealingly engaging said outer sealing surface of said neck portion;
wherein the improvement comprisessaid annular body portions of said first and second rings being generally planar and extending along substantially parallel planes, with each of said body portions having a radial dimension greater than the axial dimension of said outer sealing surface of said neck portion;
said body portion of said first ring defining an annular latching shoulder extending about the outer perimeter thereof;
said body portion of said second ring providing an annular latching rib extending inwardly and axially from the outer periphery thereof, with the axial direction of said rib being opposite from the axial direction of said collar portion;
said latching rib, and the body portion of said second ring, defining a latching recess detachably receiving and retaining the shoulder of said first ring. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
- said coupling including first and second coupling rings formed of flexible and resilient thermoplastic material;
Specification