Ostomy bag with outer rotatable adhesive fitting wafer

Abstract

Disclosed is an ostomy bag 1 having an outer rotatable adhesive fitting wafer 15 attached thereto. This offers a higher degree of customization to the user, as the user may cut the adhesive fitting wafer in such a way that it fits to the contour of the skin and the user may also rotate the ostomy bag relative to the wafer in order to achieve a desired orientation of the ostomy bag.

Claims

1. An ostomy appliance comprising: an ostomy bag comprising a proximal wall facing a user during use and a distal wall facing away from the user during use, wherein the proximal wall comprises an inlet opening through which output from a stoma is received during use; a connecting flange comprising: an annular attachment area having a through-going hole connecting at a distal end to and around the inlet opening of the proximal wall; and a radial extension on a proximal end of the through-going hole of the annular attachment area; and an adhesive fitting wafer attached around the through-going hole of the annular attachment area between the distal end of the through-going hole and the proximal end of the through-going hole, the adhesive fitting wafer being positioned between and substantially parallel to each of the proximal wall and the radial extension of the connecting flange, wherein the adhesive fitting wafer is rotatable around the through-going hole of the annular attachment area in a direction substantially parallel relative to the connecting flange, wherein the adhesive fitting wafer includes a high tack adhesive disposed on substantially an entirety of a proximal side of the adhesive fitting wafer, with the high tack adhesive being configured to adhere and to conform the proximal surface of the adhesive fitting wafer to a contour of a skin surface of the user, and to adhere to substantially an entirety of a distal surface of the connecting flange around the proximal end of the through-going hole.

2. The ostomy appliance according to claim 1, wherein the connecting flange is an adhesive coupling wafer.

3. The ostomy appliance according to claim 2, wherein the adhesive coupling wafer is a base plate including the high tack adhesive on the proximal side of the radial extension for attachment to the skin surface.

4. The ostomy appliance according to claim 1, wherein the connecting flange is a mechanical coupling flange for coupling with a complementary mechanical coupling flange of an ostomy device base plate.

5. The ostomy appliance according to claim 1, wherein the adhesive fitting wafer is rectangular and has a width of at least three times a diameter of the radial extension of the connecting flange and a height of at least twice the diameter the radial extension of the connecting flange.

6. The ostomy appliance according to claim 1, further comprising a release liner covering the adhesive on the proximal side of the adhesive fitting wafer and wherein the release liner has a split formed in the release liner.

7. The ostomy appliance according to claim 1, wherein the adhesive fitting wafer is defined between an inner periphery located at the through-going hole of the annular attachment area and an outer periphery located at a distance from the inner periphery.

8. The ostomy appliance according to claim 1, wherein the high tack adhesive is configured to adhere to the radial extension of the connecting flange and to the skin surface of the user.

9. The ostomy appliance according to claim 1, further comprising an adhesive disposed on a proximal side of the radial extension of the connecting flange.

10. The ostomy appliance according to claim 1, wherein the high tack adhesive is configured to adhere to the radial extension of the connecting flange.

11. The ostomy appliance according to claim 1, wherein the adhesive fitting wafer is formed as a thin sheet.

12. The ostomy appliance according to claim 7, wherein the high tack adhesive extends between the inner periphery and the outer periphery of the adhesive fitting wafer.

13. The ostomy appliance according to claim 1, wherein the adhesive fitting wafer includes a backing layer with the high tack adhesive disposed on a side of the backing layer facing the connecting flange.

14. The ostomy appliance according to claim 1, wherein an external surface of the proximal side of the adhesive fitting wafer consists essentially of the high tack adhesive.

15. The ostomy appliance according to claim 1, wherein the proximal wall and the radial extension of the connecting flange form a recess therebetween with the adhesive fitting wafer being positioned within the recess between the proximal wall and the radial extension of the connecting flange.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows an ostomy bag as described herein in an exploded view,

(2) FIG. 2 shows an ostomy bag as described herein with the adhesive fitting wafer arranged around the ostomy bag, and

(3) FIG. 3 shows in section the above along line III-III.

DETAILED DESCRIPTION

(4) An ostomy bag 1 is formed of a proximal sheet wall 2 and a distal sheet wall 3. The sheet walls are typically formed of two separate sheets which are welded together along their outer periphery. However, alternatively the ostomy bag may also be equipped with an outlet for emptying the stomal output collected in the bag at the convenience of the user.

(5) The proximal sheet wall 2 is provided with an inlet opening 4 for receiving output from a stoma during use. An annular coupling wafer 5 is arranged on the proximal side of the proximal sheet wall 2. The coupling wafer is in the form of a disc having a central through-going hole 6 defining an inner periphery 7 of the coupling wafer. An outer periphery 8 defines the outer limit of the coupling wafer. The coupling wafer is attached to the proximal sheet wall around the inlet opening by an annular weld 9 provided at its inner periphery 7 in such a way that the inlet opening and the central through-going hole are co-axially arranged around a central axis A-A.

(6) The coupling wafer is formed of a backing layer 10 of a material which is suitable for welding to the ostomy bag. Such materials are well known to the person skilled in the art. A skin friendly adhesive 11 is disposed on the proximal side of the backing layer. Such an adhesive may be a pressure sensitive adhesive (PSA) containing hydrocolloids. Such adhesives are well known and commonly used within ostomy appliances.

(7) An adhesive fitting wafer 15 is arranged in rotational engagement with the ostomy bag and the coupling wafer allowing for relative rotational movement in respect to the ostomy bag and the coupling wafer around the axis A-A. The adhesive fitting wafer is formed of a wafer backing layer 16 whereon a skin friendly wafer adhesive 17 is disposed. The wafer adhesive may be of a kind which is thinner and more flexible than that of the adhesive of the coupling wafer. This allows the fitting wafer to better follow the contour of the body providing higher comfort and reducing the risk of detachment from the skin.

(8) In order to couple the adhesive fitting wafer to the ostomy bag a through-going wafer hole 18 is formed in the adhesive fitting wafer. The wafer hole 18 has a diameter which is larger than the diameter of the annular weld 9, but smaller than the diameter of the outer periphery 8 of the coupling flange. Thus, the adhesive fitting wafer may be held in place in the recess 19 created between the coupling flange and the ostomy bag as shown in FIG. 3.