Ostomy faceplate having moldable adhesive wafer with diminishing surface undulations
First Claim
1. An ostomy faceplate comprising a generally annular adhesive wafer of soft, moisture-absorbent, finger-moldable, essentially non-elastic skin barrier material;
- said wafer having a proximal bodyside surface and an opposite distal surface;
said distal surface having an outer zone terminating at an outer periphery of said wafer and a concentric inner zone extending inwardly from said outer zone to a stoma-receiving opening at an inner periphery of said wafer;
a flexible backing layer covering said outer zone of said distal surface;
and a removable cover member having a smooth surface releasably covering said proximal bodyside surface of said wafer;
said distal surface of said inner zone having undulations defined by a series of concentric ridges and valleys with said ridges progressively diminishing in thickness, when measured by the distance between said distal and proximal surfaces at each ridge, as said series progresses inwardly from the maximum thickness of said wafer towards said stoma-receiving opening of said wafer.
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Accused Products
Abstract
An ostomy faceplate and its method of application are disclosed in which the faceplate comprises an annular adhesive wafer of soft, moisture-absorbent, memory-free, essentially non-elastic and finger-moldable adhesive skin barrier material, the wafer'"'"'s distal surface having an outer zone terminating at the outer periphery of the wafer and an inner zone extending inwardly from the inner limits of the outer zone to a stoma-receiving opening at the inner periphery of the wafer. The faceplate also includes a flexible backing layer covering the outer zone and a removable cover member having a smooth surface releasably covering the proximal bodyside surface of the wafer. The distal surface of the inner zone has undulations defined by a plurality of concentric ridges and valleys with the ridges progressively diminishing in thickness, when measured by the distance between the distal and proximal surfaces at each ridge, as the series progresses inwardly from the maximum thickness of the wafer towards the stoma-receiving opening. The method of application includes both a preliminary molding step and a secondary molding step.
127 Citations
24 Claims
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1. An ostomy faceplate comprising a generally annular adhesive wafer of soft, moisture-absorbent, finger-moldable, essentially non-elastic skin barrier material;
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said wafer having a proximal bodyside surface and an opposite distal surface; said distal surface having an outer zone terminating at an outer periphery of said wafer and a concentric inner zone extending inwardly from said outer zone to a stoma-receiving opening at an inner periphery of said wafer; a flexible backing layer covering said outer zone of said distal surface; and a removable cover member having a smooth surface releasably covering said proximal bodyside surface of said wafer; said distal surface of said inner zone having undulations defined by a series of concentric ridges and valleys with said ridges progressively diminishing in thickness, when measured by the distance between said distal and proximal surfaces at each ridge, as said series progresses inwardly from the maximum thickness of said wafer towards said stoma-receiving opening of said wafer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for adhering an ostomy faceplate to a wearer, said faceplate including a wafer of soft, finger-moldable, non-memory, hydrocolloid-containing skin barrier material having a generally central opening extending therethrough;
- said wafer having a proximal bodyside surface and an opposite distal surface; and
a releasable cover member having a smooth surface contacting and covering said proximal surface;
said distal surface of said wafer having undulations defined by a series of concentric ridges and valleys with said ridges progressively diminishing in thickness, when measured by the distance between the distal and proximal surfaces at each ridge, as said series progresses inwardly towards said opening;
comprising the steps ofreshaping said opening in a preliminary molding step by slidably displacing the skin barrier material outwardly over the smooth surface of said cover member until said opening approximates the general shape and size of a stoma to be extended therethrough; removing said cover member from said wafer and positioning said proximal surface of said wafer in sealing engagement with skin surfaces surrounding a stoma; and then in a second molding step inwardly displacing and molding said barrier material of said wafer into sealing contact with the stoma extending through said wafer opening. - View Dependent Claims (24)
- said wafer having a proximal bodyside surface and an opposite distal surface; and
Specification