Ostomy Pouch

Abstract

An ostomy pouch, comprises: inner and outer walls of flexible sheet material defining a cavity for containing stomal output; a deployable drain for draining stomal output from the cavity; and at least one sheet of comfort material comprising a hot-melt adhesive coating. The first sheet of comfort material is attached to the outer wall and at least a portion of the first sheet of comfort material forms a flap. The flap is configured to cover the deployable drain when the drain is in a retracted position.

1 . An ostomy pouch, comprising:
 inner and outer walls of flexible sheet material defining   a cavity for containing stomal output;   a deployable drain for draining stomal output from the cavity; and   at least one sheet of comfort material comprising a hot-melt adhesive coating;   wherein a first sheet of comfort material is attached to the outer wall, at least a portion of the first sheet of comfort material forming a flap;   wherein the flap is configured to cover the deployable drain when the drain is in a retracted position.   
     
     
         2 . An ostomy pouch according to  claim 1  wherein the pouch comprises a second sheet of comfort material attached to the outer wall at least about at least part of the periphery thereof, wherein the first sheet of comfort material is attached to the outer wall via the second sheet of comfort material. 
     
     
         3 . An ostomy pouch according to  claim 1  wherein the first sheet of comfort material is attached directly to the outer wall at the periphery thereof 
     
     
         4 . An ostomy pouch according to  claim 1  or  3  wherein the first sheet of comfort material is attached to the outer wall about at least part of the periphery thereof 
     
     
         5 . An ostomy pouch according to  claim 3  wherein a fold line about which the flap is configured to fold is defined by a line extending between two points about the periphery of the pouch where the attachment between the first sheet of comfort material and the outer wall terminates; wherein the fold line is located between the deployable drain in the retracted position and an uppermost edge of the ostomy pouch. 
     
     
         6 . (canceled) 
     
     
         7 . An ostomy pouch according to  claim 1  wherein the deployable drain is configured to move between an extended configuration for draining the stomal output from the cavity and a retracted configuration for storage of the deployable drain, the flap configured to fold along a fold line, between a covering position in which the flap covers the deployable drain when the deployable drain is in the retracted configuration, and an access position, in which the deployable drain, in the retracted configuration is uncovered by the flap and is able to be accessed for deployment. 
     
     
         8 . An ostomy pouch according to  claim 1  wherein the hot-melt adhesive coats at least an inner surface of the flap, the inner surface facing the deployable drain when the flap covers the deployable drain. 
     
     
         9 . An ostomy pouch according to  claim 1  wherein the hot-melt adhesive is applied as a web. 
     
     
         10 . An ostomy pouch according to  claim 9  wherein the web comprises a mass and a plurality of voids. 
     
     
         11 . An ostomy pouch according to  claim 10  wherein the voids make up at least 50% of the web. 
     
     
         12 . An ostomy pouch according to  claim 1  wherein the hot-melt adhesive is EVA. 
     
     
         13 . An ostomy pouch according to  claim 1  wherein the comfort material is a woven comfort material. 
     
     
         14 . An ostomy pouch according to  claim 5  wherein the flap is shaped such that an edge distal from the fold line conforms to the shape of the periphery of the ostomy pouch. 
     
     
         15 . An ostomy pouch according to  claim 1  further comprising a fastener arrangement configured to retain the deployable drain in the retracted position, the fastener arrangement comprising a first fastener located on an exterior surface of the deployable drain and a second fastener located on an exterior surface of the cavity wherein the second fastener comprises a tab, which is secured to the outer wall of the cavity. 
     
     
         16 . (canceled) 
     
     
         17 . An ostomy pouch according to  claim 15  wherein the tab comprises a tab fold line about which the tab is configured to fold between a fastened configuration and an unfastened configuration wherein a foldable portion of the tab is exposed when the flap is in the access position. 
     
     
         18 . (canceled) 
     
     
         19 . An ostomy pouch according to  claim 1  further comprising a further sheet of comfort material, attached to the inner wall to form an inner comfort layer; wherein an opening is provided proximate to the deployable drain between the inner comfort layer and the inner wall; wherein the inner comfort layer is attached to the inner wall about a periphery thereof and the opening is provided by a gap in a region of the periphery. 
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . An ostomy pouch according to  claim 5  wherein the flap is configured to fold around the fold line such that to move to the access position the end of the flap distal from the fold line is lifted away from the pouch and towards the uppermost edge of the pouch. 
     
     
         23 . An ostomy pouch according to  claim 1  wherein the pouch further comprises a window opening for viewing the cavity wherein the window opening is arranged on the outer wall, the first sheet of comfort material comprising a first and second part, wherein the first part partially overlaps the second part, or the second part overlaps the first part in an overlap region to form the window. 
     
     
         24 . A method of forming an ostomy pouch, the method comprising:
 providing an inner wall and an outer wall which define a cavity for containing stomal output, and a deployable drain for draining stomal output from the cavity;   attaching a portion of a first sheet of comfort material to the outer wall, leaving a flap arranged to cover the deployable drain when in the retracted position;   wherein the first sheet of comfort material is at least partially coated in hot-melt adhesive.   
     
     
         25 . A method of forming an ostomy pouch according to  claim 24  wherein at least the flap is coated in hot-melt adhesive.