US 12,290,467 B2
Drainable ostomy pouch including closure members and method of making the same
Robert J. Weinberg, Lake Villa, IL (US); and Timothy A. Friske, Antioch, IL (US)
Assigned to HOLLISTER INCORPORATED, Libertyville, IL (US)
Appl. No. 17/438,978
Filed by Hollister Incorporated, Libertyville, IL (US)
PCT Filed Apr. 15, 2020, PCT No. PCT/US2020/028217
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2020/226861, PCT Pub. Date Nov. 12, 2020.
Claims priority of provisional application 62/842,721, filed on May 3, 2019.
Prior Publication US 2022/0142808 A1, May 12, 2022
Int. Cl. A61F 5/44 (2006.01); A61F 5/445 (2006.01)
CPC A61F 5/4407 (2013.01) [A61F 5/445 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of making a drainable ostomy pouch comprising the steps of:
providing a drainable pouch including a bodyside wall, a distal wall, and a downwardly extending outlet portion, wherein the bodyside wall and the distal wall are joined along peripheral edges to define a cavity therebetween for collecting stomal discharge, and the downwardly extending outlet portion terminates in a discharge opening for draining stomal discharge contents collected in the cavity;
providing a single-piece closure device configured to form at least two closure members;
attaching the single-piece closure device on the downwardly extending outlet portion; and
trimming side peripheries of the single-piece closure device to form at least two separate closure members, wherein the side peripheries of the single-piece closure member are trimmed after the single-piece closure device is attached to the downwardly extending outlet portion, wherein the closure members are configured to facilitate folding up of the downwardly extending outlet portion and providing a liquid tight seal in a closed position.