Controlled discharge ostomy appliance and shield therefor

• US 9,943,436 B2
• Filed: 08/22/2014
• Issued: 04/17/2018
• Est. Priority Date: 09/11/2009
• Status: Active Grant

• Current Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Original Assignee: Convatec Incorporated (ConvaTec Group Plc)
• Inventors: Nguyen-Demary, Tinh, Cline, John, Blum, John, Stacey, Gary, Davies, Philip, Beckett, Trevor
• Primary Examiner(s): Zalukaeva, Tatyana
• Assistant Examiner(s): Townsend, Guy K
• Application Number:
  US14/466,785
• Publication Number:
  US 20140364823A1
• Time in Patent Office: 1,334 Days
• CPC Class Codes: A61F 2005/4486 with operable locking ring
• CPC Class Codes: A61F 5/441 having venting or deodorant means, e.g. filters ; having antiseptic means, e.g. bacterial barriers
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence
• CPC Class Codes: A61F 5/448 Means for attaching bag to seal ring

Abstract

A controlled discharge ostomy appliance assembly comprises (i) a stoma seal that is self-urging with a dynamic damping characteristic that resists changes of seal volume, (ii) a press-fit coupling member displaceable from an unlocked position to a locked position as part of a press-fit process, and (iii) a single-use frangible portion. The assembly further includes a protector shield removably fastened to the appliance forming a combined assembly therewith. The protector shield comprises (i) a seal displacer manipulable for displacing the stoma seal to a non-operative position ready for fitting, (ii) a substantially rigid coupling member guard portion for protecting the state of the coupling member, and (iii) a bracing portion for bracing the single-use frangible portion.

Claims

1. A controlled discharge ostomy appliance assembly comprising:

(a) a controlled discharge ostomy appliance having a body-facing side and comprising;

a cover;

a body fitment;

a stoma seal disposed within the cover, and

a first coupling member configured for coupling to the body fitment configured for mounting the controlled discharge ostomy appliance in an operative position at a stoma, the first coupling member being displaceable with respect to the cover from an unlocked position to a locked position; and

(b) a protector shield configured for protecting the body-facing side of the controlled discharge ostomy appliance, the protector being made of integrally molded plastics and comprising;

a substantially rigid coupling member guard portion configured for protecting the first coupling member of the controlled discharge ostomy appliance from external forces capable of displacing the first coupling member from the unlocked position to the locked position, and

a fastener configured for co-operating with the controlled discharge ostomy appliance at a location distinct from the first coupling member, to fasten the protector to the controlled discharge ostomy appliance releasably to form a combined assembly therewith.

2. The controlled discharge ostomy assembly of claim 1, wherein the protector shield further comprises a seal displacer configured for displacing the stoma seal from a deployed position to a non-deployed position.

3. The controlled discharge ostomy assembly of claim 1, wherein:

(a) the controlled discharge ostomy appliance further comprises a second coupling member including a frangible portion that is breakable or tearable in use for releasing the controlled discharge ostomy appliance from the body fitment; and

(b) the protector shield further comprises

a bracing portion for bracing and supporting the second coupling member of the controlled discharge ostomy appliance, to prevent tearing of the frangible portion prior to first use.

4. A controlled discharge ostomy appliance assembly comprising:

(a) a controlled discharge ostomy appliance having a body-facing side and comprising;

a stoma seal, and

a member including a frangible portion that is breakable or tearable in use configured for releasing at least one of (i) the stoma seal from an operative position; and

(ii) the controlled discharge ostomy appliance from a body fitment; and

(b) a protector shield configured for protecting the body-facing side of the controlled discharge ostomy appliance, the protector being made of integrally molded plastics and comprising;

a bracing portion configured for bracing and supporting said member of the controlled discharge ostomy appliance, to prevent tearing of the frangible portion prior to first use, and

a fastener configured for co-operating with the controlled discharge ostomy appliance, to fasten the protector to the controlled discharge ostomy appliance to form a combined assembly therewith.

5. The controlled discharge ostomy assembly of claim 4, wherein the protector shield further comprises a seal displacer configured for displacing the seal of the controlled discharge ostomy appliance from a deployed position to a non-deployed position.

6. A protector shield for protecting a body-facing side of a controlled discharge ostomy appliance, the protector shield being made of integrally molded plastics and comprising:

(i) a protector;

(ii) a seal displacer configured for displacing a self-urging seal of the controlled discharge ostomy appliance from a deployed position to a non-deployed position,

(iii) a substantially rigid coupling member guard portion configured for protecting a first coupling member of the controlled discharge ostomy appliance from external forces capable of displacing the first coupling member from an unlocked position to a locked position,

(iv) a bracing portion configured for bracing and supporting a second coupling member of the controlled discharge ostomy appliance, the second coupling member including a frangible portion that is breakable or tearable in use to release the controlled discharge ostomy appliance, and

(v) a fastener configured for co-operating with a periphery of the controlled discharge ostomy appliance, to releasably fasten the protector shield to the controlled discharge ostomy appliance to form a combined assembly therewith.

7. The protector shield of claim 6, wherein the seal displacer is located at a centre of the protector.

8. The protector shield of claim 6, wherein the coupling member guard portion comprises a channel shaped fender, the fender extending in a closed loop to define an endless channel.

9. The protector shield of claim 6, wherein the coupling member guard portion extends around the seal displacer.

10. The protector shield of claim 9, wherein the seal displacer and the coupling member guard portion adjoin at a bendable interface portion.

11. The protector shield of claim 6, wherein the bracing portion comprises a step-shaped recess extending around a closed loop shaped path.

12. The protector shield of claim 6, wherein the fastener comprises at least one undercut lug.