# US 12,109,144 B2 · Ostomy attachments > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,144 B2 - Document ID: US12109144B2 - Status: Granted - Kind: B2 - Application number: 17/058,569 - Filed: 2019-06-03 - Published: 2021-07-08 - Granted: 2024-10-08 - Earliest claimed: 2018-06-01 - Assignees: Ostoform Limited - Applicants: Ostoform Limited - Inventors: Eoghan Spain; Kevin Kelleher - Web page: https://patentgrep.com/patent/US12109144B2 ## CPC - A61F 5/443: having {adhesive seals for securing to the body, e.g. of} hydrocolloid type seals, e.g. gels, starches or karaya gums - A61F 5/445: Colostomy, {ileostomy or urethrostomy} devices (A61F5/441, A61F5/442, A61F5/443 take precedence) - A61F 5/4404: {Details or parts} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract An ostomy attachment including: a flexible annular seal configured to at least partially surround a stoma, the flexible annular seal including a first face and a second face; wherein the first face and the second face are bounded by an inner rim and an outer rim, wherein the inner rim is concentrically arranged within the outer rim; and an ostomy seal liner configured to engage with the inner rim of the flexible annular seal; wherein the ostomy seal liner includes one or more stabilising extensions, wherein the one or more stabilising extensions extend from the ostomy seal liner radially outward and over the first face of the flexible annular seal; and wherein the one or more stabilising extensions are in contacting relation with the first face of the flexible annular seal. Methods of manufacturing ostomy attachments and methods of use are also provided. ## Claims ### Claim 1 An ostomy attachment comprising: a flexible annular seal configured to at least partially surround a stoma, the flexible annular seal comprising a first face and a second face; wherein the first face of the flexible annular seal and the second face of the flexible annular seal are bounded by an inner rim and an outer rim, wherein the inner rim is concentrically arranged within the outer rim; and an ostomy seal liner configured to engage with the inner rim of the flexible annular seal; wherein the ostomy seal liner comprises one or more stabilising extensions, wherein the one or more stabilising extensions extend radially outward and over the first face of the flexible annular seal; and wherein the one or more stabilising extensions are in direct contact with the first face of the flexible annular seal to adhere and mechanically fix the flexible annular seal to the ostomy seal liner. ### Claim 2 (depends on 1) The ostomy attachment of claim 1, wherein the one or more stabilising extensions are in continuous direct contact with the first face of the flexible annular seal. ### Claim 3 (depends on 1) The ostomy attachment of claim 1, wherein the inner rim and the outer rim comprise a distance therebetween, and wherein the one or more stabilising extensions extend across the first face of the flexible annular seal by at least 30% of the distance between the inner rim and the outer rim. ### Claim 4 (depends on 1) The ostomy attachment of claim 1, wherein the stabilising extensions are planar. ### Claim 5 (depends on 1) The ostomy attachment of claim 1, wherein the one or more stabilising extensions each comprise one or more apertures or relief areas. ### Claim 6 (depends on 1) The ostomy attachment of claim 1, wherein the flexible annular seal is formed of absorbent material and the ostomy seal liner is formed of non-absorbent material. ### Claim 7 (depends on 6) The ostomy attachment of claim 6, wherein the absorbent material is a hydrocolloid. ### Claim 8 (depends on 1) The ostomy attachment of claim 1, wherein the ostomy seal liner comprises at least one resiliently deformable arm. ### Claim 9 (depends on 8) The ostomy attachment of claim 8, wherein each of the one or more stabilising extensions is positioned at an end of the at least one resiliently deformable arm. ### Claim 10 (depends on 8) The ostomy attachment of claim 8, wherein the ostomy seal liner comprises two resiliently deformable arms. ### Claim 11 (depends on 8) The ostomy attachment of claim 8, wherein the ostomy seal liner further comprises a central section to which the at least one resiliently deformable arm is attached. ### Claim 12 (depends on 11) The ostomy attachment of claim 11, wherein the central section comprises a spout that in use is disposed beneath the stoma and is configured to direct ostomy output away from a patient's skin and into an ostomy bag. ### Claim 13 (depends on 12) The ostomy attachment of claim 12, wherein the spout is angled to optimise collection of the ostomy output and delivery of the ostomy output into the ostomy bag. ### Claim 14 (depends on 8) The ostomy attachment of claim 8, wherein the resiliently deformable arm is attached at both ends to the central section to form an annular ring. ### Claim 15 (depends on 14) The ostomy attachment of claim 14, wherein the one or more stabilising extensions are positioned regularly spaced around a circumference of the annular ring. ### Claim 16 (depends on 8) The ostomy attachment of claim 8, wherein the at least one resiliently deformable arm comprises a length, and wherein the one or more stabilising extensions extend outwardly from no more than 30% of the length of the at least one resiliently deformable arm. ### Claim 17 (depends on 1) The ostomy attachment of claim 1, wherein the ostomy seal liner is fixedly attached to the flexible annular seal. ### Claim 18 An ostomy seal liner for engaging a flexible annular seal configured to at least partially surround a stoma, the flexible annular seal comprising: a first face and a second face, wherein the first face of the flexible annular seal and the second face of the flexible annular seal are bounded by an inner rim and an outer rim, wherein the inner rim is concentrically arranged within the outer rim, wherein the ostomy seal liner comprises one or more stabilising extensions, wherein the one or more stabilising extensions extend radially outward and over the first face of the flexible annular seal; and wherein the one or more stabilising extensions are in direct contact with the first face of the flexible annular seal to adhere and mechanically fix the flexible annular seal to the ostomy seal liner. ### Claim 19 (depends on 1) An ostomy seal liner for use in the ostomy attachment of claim 1.