Ostomy appliance with extrudable gasket
First Claim
1. An ostomy appliance comprising a collection pouch and faceplate assembly;
- said faceplate assembly including a flexible patch having a stoma-receiving opening, a first layer of skinfriendly hydrocolloid-containing adhesive material along one side of said patch about said opening for securing said faceplate assembly to peristomal skin surfaces, and a second layer of adhesive sealant material immediately surrounding said opening;
said adhesive sealant material of said second layer being softer more easily deformable and extrudable, and more resistant to being dissolved or disintegrated by stomal fluids than the skinfriendly hydrocolloid-containing adhesive material of said first layer and being displacable inwardly and axially into said opening for forming a stoma-engaging annular gasket to prevent stomal fluids from contacting said first adhesive layer.
1 Assignment
0 Petitions
Accused Products
Abstract
An ostomy appliance of one-piece or two-piece construction having an adhesive faceplate with a stoma-receiving opening for peristomal adhesive attachment of the appliance to a wearer. The faceplate includes a flexible patch which may be formed of non-woven material and is covered on one side with a first layer of pressure-sensitive adhesive material--particularly a skinfriendly, tacky, hydrocolloid-containing, moisture-absorbing skin barrier material--surrounding the stoma-receiving opening, and a second layer of a soft, easily-deformable, and extrudable fluid-resistant sealant material also surrounding that opening. Inward displacement of the sealant material following adhesive attachment of the faceplate to a patient results in the formation in situ of a fluid-resistant gasket that prevents stomal fluids from contacting the peristomal skin surfaces and the first layer of skinfriendly adhesive and possibly dissolving that layer and/or disrupting its attachment to the skin.
73 Citations
11 Claims
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1. An ostomy appliance comprising a collection pouch and faceplate assembly;
- said faceplate assembly including a flexible patch having a stoma-receiving opening, a first layer of skinfriendly hydrocolloid-containing adhesive material along one side of said patch about said opening for securing said faceplate assembly to peristomal skin surfaces, and a second layer of adhesive sealant material immediately surrounding said opening;
said adhesive sealant material of said second layer being softer more easily deformable and extrudable, and more resistant to being dissolved or disintegrated by stomal fluids than the skinfriendly hydrocolloid-containing adhesive material of said first layer and being displacable inwardly and axially into said opening for forming a stoma-engaging annular gasket to prevent stomal fluids from contacting said first adhesive layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- said faceplate assembly including a flexible patch having a stoma-receiving opening, a first layer of skinfriendly hydrocolloid-containing adhesive material along one side of said patch about said opening for securing said faceplate assembly to peristomal skin surfaces, and a second layer of adhesive sealant material immediately surrounding said opening;
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9. An ostomy appliance comprising a collection pouch and faceplate assembly;
- said faceplate assembly including a flexible patch having a stoma-receiving opening, a first layer of skinfriendly hydrocolloid-containing adhesive material along one side of said patch about said opening for securing said faceplate assembly to peristomal skin surfaces, and a second layer of relatively soft, easily-deformable and extrudable, adhesive sealant material of a composition that is resistant to being dissolved or disintegrated by stomal fluids and that immediately surrounds said opening;
said second layer being displacable inwardly and axially into said opening for forming a stoma-engaging annular gasket to prevent stomal fluids from contacting said first adhesive layer;
said first and second layers being in direct planar contact with each other;
said faceplate assembly being contoured and having a relatively thick annular inner portion of adhesive material and a relatively thin annular outer flange portion of adhesive material;
said relatively thick annular inner portion and said annular outer flange portion being composed of both of said first adhesive layer and said second adhesive layer.
- said faceplate assembly including a flexible patch having a stoma-receiving opening, a first layer of skinfriendly hydrocolloid-containing adhesive material along one side of said patch about said opening for securing said faceplate assembly to peristomal skin surfaces, and a second layer of relatively soft, easily-deformable and extrudable, adhesive sealant material of a composition that is resistant to being dissolved or disintegrated by stomal fluids and that immediately surrounds said opening;
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10. An ostomy appliance comprising a collection pouch and faceplate assembly;
- said faceplate assembly including a flexible patch having a stoma-receiving opening, a first layer of skinfriendly hydrocolloid-containing adhesive material along one side of said patch about said opening for securing said faceplate assembly to peristomal skin surfaces, and a second layer of relatively soft, easily-deformable and extrudable, adhesive sealant material of a composition that is resistant to being dissolved or disintegrated by stomal fluids and that immediately surrounds said opening;
said second layer being displacable inwardly and axially into said opening for forming a stoma-engaging annular gasket to prevent stomal fluids from contacting said first adhesive layer;
said appliance being a two-piece appliance with said pouch and faceplate being detachably connected together;
said second adhesive layer having opposite faces covered by first and second films of thin, flexible material;
said films each having concentric inner and outer portions with said inner portion of one of said films being secured to said patch adjacent said opening;
said one film having its outer portion unsecured to said patch to permit the outer portions of said films to be squeezed together between a user'"'"'s fingers for extruding said sealant material of said second adhesive layer into said stoma opening. - View Dependent Claims (11)
- said faceplate assembly including a flexible patch having a stoma-receiving opening, a first layer of skinfriendly hydrocolloid-containing adhesive material along one side of said patch about said opening for securing said faceplate assembly to peristomal skin surfaces, and a second layer of relatively soft, easily-deformable and extrudable, adhesive sealant material of a composition that is resistant to being dissolved or disintegrated by stomal fluids and that immediately surrounds said opening;
Specification