Ostomy pouch accessory

Abstract

An ostomy baseplate includes a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma. The ostomy baseplate further comprises a collar formed of woven material.

Description

[0001] Ostomy Pouch Accessory

[0002] Technical Field of the Invention

[0003] The present invention relates to an ostomy coupling, in particular to an ostomy base plate for attaching an ostomy pouch to an ostomate.

[0004] Background to the Invention

[0005] When using an ostomy appliance, it is paramount that the ostomy appliance is securely attached to the user’s body around the stoma in a manner that it can efficiently receive and collect stomal output. It is particularly important that leaks of liquid and / or gas are prevented / minimised as nay leaking can cause discomfort or injury, such as skin damage around the stoma, and presents a hygienic risk to the user as well as potential embarrassment and inconvenience.

[0006] Typically, an ostomy appliance comprises a pouch in fluid communication with the stoma via a hydrocolloid adhesive component, sometimes referred to as a flange that attaches the ostomy appliance to the skin of the user around the stoma. Conventionally, the hydrocolloid adhesive flange is attached to the pouch directly via an adhesive or weld, such as a heat weld or ultra-sonic weld; this is known in the art as a “one-piece pouch”.

[0007] In an alternative to the “one-piece pouch”, two-piece pouches are known, which are made up of a pouch and a separate baseplate to which the pouch is connectable. In a known arrangement, such as the Natura (RTM) Stomahesive (RTM) square flange with flexible collar, available from ConvaTec Limited of Deeside, UK, the baseplate includes the hydrocolloid adhesive component which attaches to the skin around the stoma and a coupling ring to allow the baseplate to be attached and detached from a pouch (the pouch having a corresponding coupling ring, which snap-fits to the ring on the baseplate). As indicated in the name, the Natura (RTM) Stomahesive (RTM) square flange with flexible collar also includes a flexible collar, this collar is a ring of flexible non-woven material, with a square outer periphery, which surrounds the hydrocolloid component and is provided with an adhesive to improve the attachment between the baseplate and the skin of the ostomate. In certain circumstances, it is beneficial to control the shape of the hydrocolloid adhesive component to enhance transport of stomal output into the pouch and provide a better seal between the user and the ostomy appliance. To achieve ths, a shaped-disc that is more rigid than the hydrocolloid adhesive component is attached to the hydrocolloid adhesive; for example a convex disc may be provided for users with a recessed stoma (known in the art as a “convex baseplate”).

[0008] Removal of the adhesive component (and flexible collar where present) from the skin of the user to replace the baseplate may be uncomfortable, for this reason, and to reduce waste, it is therefore desirable to reduce the frequency at which the baseplate is replaced.

[0009] It is an object of embodiments of the present invention to at least partially overcome or alleviate the above problems and / or to provide an improved or alternative ostomy appliance.

[0010] Summary of the Invention

[0011] According to a broad aspect of the invention there is provided an ostomy baseplate. The ostomy baseplate may be for coupling an ostomy pouch to an ostomate. The baseplate may comprise a coupling component. The coupling component may be for coupling the baseplate to a corresponding coupling component. The corresponding coupling component may be a coupling component of an ostomy pouch. The baseplate may comprise an adhesive component. The adhesive component may be for coupling the baseplate to the abdomen of the stomate. The adhesive component may be for coupling the baseplate to the abdomen around the stoma. The ostomy baseplate may further comprise a collar. The collar may be formed of a woven material.

[0012] In a preferred aspect of the invention there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate, the baseplate comprising an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material.

[0013] Advantageously, the provision of a collar in the form of a woven material (rather than a non-woven) reduces pilling, i.e. reduces the occurrence of pills. This is because woven material is made from interlocking yarns whereas non-woven is short fibres. This reduction in the degradation in appearance of the baseplate (through lack of pilling) increases the likelihood that the baseplate will be used for longer periods of time, because the reduced formation of pills (i.e. small balls of fibre on the surface of the non-woven collar) will lead to the user perceiving that the baseplate is less degraded than a corresponding baseplate with a non-woven collar. This in turn reduces the likelihood that the baseplate is replaced whilst it is still functional, reducing waste and the discomfort which may occur during replacement.

[0014] According to a first aspect of the invention there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material.

[0015] The adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma may be a hydrocolloid adhesive. The adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma may be a mouldable adhesive component.

[0016] Accordingly in a preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and a mouldable adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material.

[0017] The mouldable adhesive component may be able to mould around the stoma. Such mouldable components are described for example in W02010 / 060116. The mouldable adhesive component may be a sandwich structure, with adhesive layers arranged either side of a film layer, the film layer providing elasticity to the mouldable adhesive layers. The adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma may be a mouldable hydrocolloid adhesive. Alternatively the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma may be configured to be cut to size to fit around the stoma. The collar comprise a further adhesive. The further adhesive may be arranged radially outward of the mouldable / hydrocolloid adhesive. The further adhesive may not overlap with the adhesive component, i.e. it may be arranged entirely radially outward of the adhesive component.

[0018] Accordingly in a preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material and a further adhesive; the further adhesive being arranged entirely radially outward of the adhesive component.

[0019] The further adhesive on the collar provides additional support to the ostomy pouch and allows the two adhesives to be tailored to specific functions, for example the adhesive component can be configured to better seal around the stoma whilst the further adhesive may be configured for improved adhesion to skin.

[0020] The further adhesive may be thinner than the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma.

[0021] The further adhesive may be an acrylic adhesive.

[0022] Accordingly in a preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material and a further adhesive; the further adhesive being an acrylic adhesive.

[0023] The coupling component may be a mechanical coupling component. The coupling component may be a coupling ring. The coupling component may be a clip- fit or snap-fit ring.

[0024] The coupling component may be an adhesive coupling component. The coupling component may comprise an adhesive landing region for adhesion to a corresponding adhesive region of an ostomy pouch. The coupling component may comprise an adhesive region for adhesion to a corresponding adhesive landing region of an ostomy pouch.

[0025] Accordingly in a preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material and wherein the coupling component is an adhesive coupling component.

[0026] The collar formed of woven material may be provided radially outwardly of the coupling component. The collar formed of woven material my surround the coupling component circumferentially. The collar formed of woven material may be provided radially outwardly of the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma. The collar formed of woven material my surround the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma circumferentially.

[0027] The woven material may comprise cotton, polyester, polypropylene, or a mixture of cotton, polyester and / or polypropylene, such as a mixture of cotton and polyester yams.

[0028] Accordingly in one preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material comprising cotton.

[0029] In another preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material comprising polyester.

[0030] In another preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material comprising propylene.

[0031] In another preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material comprising a mixture of cotton and polyester; cotton and polypropylene; polyester and polypropylene or cotton, polyester and polypropylene.

[0032] The woven material may be provided with a water repellent coating.

[0033] Accordingly in one preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material; the woven material being provided with a water repellent coating.

[0034] The baseplate may comprise a rigid disc. The baseplate may comprise a convex disc. The convex disc may be configured to shape the adhesive component to suit recessed stomas, flush stomas, stomas which are arranged in skin folds / creases, or protrude from soft / flacid abdomens.

[0035] Accordingly in one preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a rigid convex disc configured to shape the adhesive component to suit recessed stomas, flush stomas, stomas which are arranged in skin folds / creases, or protrude from soft / flacid abdomens; a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material

[0036] Alternatively, the base plate may not comprise a convex disc; for example it and may only comprise a rigid flat disc, which is not convex. The rigid flat disc which is not convex may be configured to suit protruding stomas. The baseplate may comprise two discs. The two discs may be rigid. The two discs may be stacked upon one another. The two discs may be integrally moulded. A gap may be provided between the two discs.

[0037] Accordingly in one preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a rigid convex disc comprising two discs stacked upon one another with a gap between them; a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material.

[0038] The collar of woven material may be ring-shaped. The ring-shaped collar of woven material may have an ovular outer circumference.

[0039] Accordingly in one preferred embodiment there is provided an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material; the collar being ring-shaped and having an ovular outer circumference.

[0040] The ovular outer circumference may be shaped to match the shape of a corresponding ostomy pouch. The ring-shaped collar of woven material may have a circular inner circumference. The circular inner circumference of the ring-shaped collar of woven material may overlay an outer circumference of the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma (i.e. which may be hydrocolloid / mouldable adhesive).

[0041] The collar having an ovular outer circumference is advantageous as it allows additional adhesive strength in one axis without requiring additional material in the perpendicular axis.

[0042] There may be provided an ostomy system comprising an ostomy pouch and the ostomy baseplate. The ostomy pouch may comprise a coupling component corresponding to the coupling component of the baseplate. The ostomy pouch may comprise a woven comfort material. The woven comfort material may be formed from the same woven material as the woven material of the baseplate. The woven comfort material may comprise a further layer or coating, for example a layer which improves bonding. The woven comfort layer may comprise a layer of EVA, e.g. a coating of EVA on its inside surface. The woven comfort material of the ostomy pouch may be the same colour as the woven material of the baseplate.

[0043] Accordingly in one preferred embodiment there is provided an ostomy system comprising an ostomy pouch and an ostomy baseplate for coupling the ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material; and the ostomy pouch comprises a woven comfort material.

[0044] Advantageously, the woven comfort material of the ostomy pouch being the same material as the woven material of the collar helps the blend the two components together and give the impression of an undergarment instead of a medical appliance, this effect is enhanced when the colour of the two materials is the same.

[0045] Accordingly, in a second aspect of the invention there is provided an ostomy pouch and an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of the ostomy pouch and, an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material.

[0046] The ostomy pouch may comprise a woven comfort material. The woven comfort material may be formed from the same woven material as the woven material of the collar. The woven comfort material may comprise a further layer or coating, for example a layer which improves bonding. The woven comfort layer may comprise a layer of EVA, e.g. a coating of EVA on its inside surface. The woven comfort material of the ostomy pouch may be the same colour as the woven material of the baseplate.

[0047] Accordingly in one preferred embodiment, there is provided an ostomy pouch and an ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of the ostomy pouch and, an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy pouch comprises a woven comfort material and the ostomy baseplate further comprises a collar formed of woven material.

[0048] The ostomy baseplate of the second aspect may be the ostomy baseplate according to the first aspect, optionally including any optional features thereof.

[0049] According to a third aspect of the invention there is provided a method of manufacturing an ostomy baseplate, the method comprising; providing an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma and attaching a collar formed of woven material to the adhesive component to form a baseplate.

[0050] The method may comprise arranging the collar so as to extend radially outwardly of the adhesive component for coupling the baseplate to the abdomen of the ostomate.

[0051] The method may comprise providing the baseplate with a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch.

[0052] The ostomy baseplate of the third aspect may be the ostomy baseplate of the first aspect, optionally including any optional features thereof. According to a fourth aspect of the invention there is provided an ostomy pouch, the ostomy pouch comprising an adhesive component for coupling the ostomy pouch to the abdomen of the ostomate around a stoma and a collar; wherein collar is formed of woven material.

[0053] Preferably the ostomy pouch is a one-piece pouch.

[0054] Accordingly in one embodiment there is provided a one-piece ostomy pouch, the ostomy pouch comprising an adhesive component for coupling the ostomy pouch to the abdomen of the ostomate around a stoma and a collar; wherein collar is formed of woven material

[0055] The collar of the fourth aspect may be the collar of the first aspect, optionally including any optional features thereof.

[0056] The collar may be arranged to extend radially outwardly of the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma. The collar may be separate from and facing a rear wall of the ostomy pouch. The collar may surround an opening in the rear wall of the ostomy pouch.

[0057] In a fifth aspect of the invention there is provided a method of applying an ostomy pouch to an ostomate, the method comprising adhering an adhesive component of a baseplate to the abdomen of the ostomate around a stoma; then adhering a collar formed of woven material to the abdomen of the ostomate.

[0058] The baseplate may be the baseplate of any preceding aspect, optionally including any optional features thereof. The method may further comprise coupling an ostomy pouch to the baseplate.

[0059] Detailed Description of the Invention

[0060] In order that the invention may be more clearly understood one or more embodiments thereof will now be described, by way of example only, with reference to the accompanying drawings, of which:

[0061] Figure 1 shows a cross sectional view of a first embodiment of an ostomy baseplate according to the present invention; Figure 2 shows a cross-sectional view of the ostomy baseplate of Figure 1 attached to an ostomy pouch;

[0062] Figure 3 shows a perspective view of a second ostomy baseplate according to the invention; and

[0063] Figure 4 shows a part-exploded cross-sectional view of the ostomy baseplate of figure 3.

[0064] With reference to Figures 1 and 2, an ostomy baseplate 10 according to the present invention is described. The ostomy baseplate 10 comprises a shaped-disc in the form of a rigid convex disc 11. The disc 11 of this embodiment is generally annular in shape with a moulded part formed of an upper disc 12 and a lower disc 13 extending from a convex rim 16.

[0065] The upper disc 12 has an outer face 12’ which faces away from the lower disc 13 and an inner face 12” which faces the lower disc 13. Likewise, the lower disc 13 has an outer face 13’ which faces away from the upper disc 12 and an inner face 13” which faces the upper disc 12. The two discs 12,13 have a generally planar profile and are joined at their radially inner edges 12a, 13a by an edge wall 14 extending vertically between the two. The edge wall 14 defines a gap 15 between the inner faces 12” 13” of the upper 12 and lower 13 discs.

[0066] In this embodiment the rim 16 projects radially inward and laterally away from the radially inner edge of the outer face 13’ of the lower disc 13, this rim 16 gives the rigid disc 11 an overall convex profile. A radially inner edge defines the outline of a disc aperture 17 in the centre of the rigid disc 11.

[0067] The outer face 12’ of the upper disc 12 is provided with a coupling component. In this embodiment, the coupling component comprises a mechanical coupling 18 in the form of a coupling ring arranged centrally on the outer face 12’ and extending circumferentially around the upper disc 12. The mechanical coupling 18 comprises two projections projecting perpendicular to the outer face 12’ of the upper disc 12. The projections are shaped to engage with corresponding coupling features 101 on an ostomy pouch 100 as is known in the art. In alternative embodiments an adhesive coupling may be provided with an adhesive provided on one of the rigid disc 11 or the ostomy pouch 100 and a corresponding adhesive landing region on the other of the ostomy pouch 100 or rigid disc 11.

[0068] Laminated to the outer face 13’ of the lower disc 13 is an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma. This takes the form of a hydrocolloid adhesive disc 19 having an upper surface 19’ partially adhered to the outer face 13’ of the lower disc 13 and the rim 16, and an opposing lower surface 19”. The upper 19’ and lower 19” surfaces are adhesive, as the disc is formed of a hydrocolloid adhesive. In this particular embodiment, the hydrocolloid disc is mouldable, so it can be moulded around a stoma - alternative embodiments could be cut-to-fit.

[0069] The hydrocolloid adhesive disc 19 extends slightly beyond the radially outer edge of the lower disc 13, it also extends radially inward over the aperture 17 such that apart from at an adhesive disc aperture 20 arranged centrally on the hydrocolloid adhesive disc 19, the hydrocolloid adhesive disc 19 occludes the disc aperture 17. The adhesive disc aperture 20 is sized such that is has a smaller diameter than the typical stoma (not shown).

[0070] Arranged on the surface 19” of the hydrocolloid adhesive disc opposing that which is laminated to the rigid disc 11 is a disc release liner 21 which extends across the entire surface of the hydrocolloid adhesive disc 19.

[0071] Arranged radially outward of the rigid disc 11 and extending circumferentially around it is a flexible collar 22. The collar is formed of a sheet of woven material having a ring shape. The inner edge has a circular shape and is sized such that the collar 22 overlaps the outer periphery of the hydrocolloid disc 19. The flexible collar is adhered to the hydrocolloid disc 19 in the overlap region. The outer edge of the collar 22 has an ovular circumference, in some embodiments this may be sized to correspond to the shape of the ostomy pouch 100, or part thereof.

[0072] In this embodiment the woven material comprises a blend of cotton and polyester yams, however in other embodiments, cotton, polyester, polypropylene, or a mixture thereof could be used. A lower surface of the collar is provided with an adhesive coating 24, in this embodiment this adhesive coating 24 comprises an acrylic adhesive with a thickness of approximately 0.5 mm. In other embodiments, alternative adhesives may be used, for example hydrocolloid adhesives. The lower surface of the collar 22 is further provided with a collar release liner 25 which is releasably adhered to the adhesive coating 24.

[0073] With reference to Figure 2, the ostomy pouch comprises a front (with respect to the user) facing wall 102 and a rear facing wall 103, which are joined about their periphery to form a cavity for storing stomal output. The rear facing wall 103 is provided with an opening 104 for providing communication between the stoma and the cavity. The corresponding coupling feature 101 surrounds the opening 104. In some embodiments the front facing wall 102 is provided with a layer of woven comfort material 105. The woven comfort material 105 improves the aesthetics of the pouch 100 so that it appears more like a garment than a medical device. In some embodiments another layer of woven comfort material 106 is provided on the rear facing wall, so as to provide a more comfortable surface against the skin. Preferably the woven comfort material 105, 106 is formed of the same material as the woven material of the collar 22, more preferably, also the same colour so as to make the whole system as inconspicuous as possible. In some embodiments the woven comfort material 105, 106 is provided with a further coating, such as EVA which aids in the bonding of the comfort material 105 to the remainder of the pouch 101.

[0074] In use, the user takes a baseplate 10 and removes the disc release liner 21 and in this embodiment manipulates the mouldable adhesive disc 19 to increase the diameter of the aperture 20 therein such that it is greater than the diameter of the stoma (in embodiments where the adhesive disc is not mouldable, it may instead be cut to fit). The user then places the baseplate over the stoma such that the stoma extends through the adhesive disc aperture 20, and ensures a leak-proof seal about the stoma.

[0075] The user then removes the collar release liner 25 and applies the flexible collar 22, adhering it to the skin further outward of the stoma, beyond the periphery of the mouldable adhesive disc 19, where skin is less sensitive. The ostomy pouch 100 can now be attached to the baseplate 10 via the mechanical coupling 18 and corresponding features 101 on the ostomy pouch. Figures 3 and 4 show a further embodiment of the invention sharing many features with that of figures 1 to 2 and with like reference numerals used for like features. The ostomy baseplate 10 of the second embodiment again comprises a shaped-disc in the form of a rigid convex disc 11 which is annular, but does not have the twin layer construction of the first embodiment. Rather, the rigid convex disc has a single flat disc portion 12 extending from a convex rim 16.

[0076] The lower face of the flat disk portion 12 is laminated to a hydrocolloid adhesive disc 19 in the same manner as the first embodiment. Again the hydrocolloid adhesive disc 19 may be mouldable, or may not be mouldable.

[0077] And, arranged radially outward of the hydrocolloid adhesive disc 19, circumferentially surrounding it, is a flexible collar 22. The flexible collar 22 is formed of a sheet of woven material having a ring shape. The inner edge has a circular shape and is sized such that the collar 22 overlaps the hydrocolloid adhesive disc and the rigid disc 11 , which is sandwiched between the hydrocolloid adhesive disc and the collar in the region of the overlap. In this embodiment, the flexible collar 22 is adhered to the rigid disc 11.

[0078] (Again, the outer edge of the collar 22 has an ovular circumference and again in this embodiment the woven material comprises a blend of cotton and polyester yarns, however in other embodiments, cotton, polyester, polypropylene, or a mixture thereof could be used.)

[0079] A lower surface of the collar 22 is provided with an adhesive coating (not shown), with a release liner (not shown) covering the adhesive coating which again may be a stronger adhesive than the hydrocolloid adhesive, e.g. an acrylic adhesive. A release liner (not shown) also covers the hydrocolloid adhesive disc.

[0080] One distinction between the second embodiment of the invention and the first is that the mechanical coupling element 18 of the second embodiment is not provided on the rigid disc 11. Rather, the mechanical coupling element 18 is provided on a separate support ring 28, which in turn is coupled to the rigid disc 11 by a pleated support membrane, or accordion section 29, to allow the coupling element 18 to be pulled away from the rigid disc 11 for easier coupling to the pouch. The mechanical coupling element 18 of the second embodiment comprises a snap-ring, which snaps into engagement behind a corresponding coupling ring on an ostomy pouch 100 as is known in the art. In alternative embodiments an adhesive coupling may be provided with an adhesive provided on one of the rigid disc 11 or the ostomy pouch 100 and a corresponding adhesive landing region on the other of the ostomy pouch 100 or rigid disc 11.

[0081] In use, the user takes a baseplate 10 and removes the disc release liner 21 and manipulates or cuts the hydrocolloid adhesive disc 19 to increase the diameter of the aperture 20 therein such that it is greater than the diameter of the stoma. The user then places the baseplate over the stoma such that the stoma extends through the adhesive disc aperture 20.

[0082] The user then removes the collar release liner (not shown) and applies the flexible collar 22, adhering it to the skin further outward of the stoma, beyond the periphery of the mouldable adhesive disc 19, where skin is less sensitive. The pleated support membrane is then extended to an extended position, whereby the user can put their fingers behind the mechanical coupling and attach it to the corresponding coupling features of the ostomy pouch 100. With the ostomy pouch attached, the pleated support membrane can be retracted to a folded position (as shown in figures 3 and 4) so that the pouch is arranged close to the body.

[0083] The one or more embodiments are described above by way of example only. Many variations are possible without departing from the scope of protection afforded by the appended claims in particular whilst the above description relates to a “two- piece” ostomy appliance, the skilled person will readily appreciate that the teaching may also be applied to “one-piece” pouches.

Claims

CLAIMS1. An ostomy baseplate for coupling an ostomy pouch to an ostomate; the baseplate comprising a coupling component for coupling the baseplate to a corresponding coupling component of an ostomy pouch and an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma; wherein the ostomy baseplate further comprises a collar formed of woven material.

2. An ostomy baseplate according to claim 1 wherein the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma is a mouldable adhesive component to be mounded around the stoma.

3. An ostomy baseplate according to claim 2 comprising a further adhesive arranged radially outward of the adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma, wherein the further adhesive is provided on the collar formed of woven material and does not overlap with the adhesive component.

4. An ostomy baseplate according to claim 3 wherein the further adhesive is an acrylic adhesive.

5. An ostomy baseplate according to any preceding claim wherein the coupling component is a mechanical coupling component.

6. An ostomy baseplate according to claim 1 to 4 wherein the coupling component is an adhesive coupling component.

7. An ostomy baseplate according to claim 6 wherein the coupling component comprises an adhesive landing region for adhesion to a corresponding adhesive region of an ostomy pouch.

8. An ostomy baseplate according to any preceding claim wherein the woven material comprises cotton, polyester, polypropylene, or a mixture of cotton, polyester or polypropylene.

9. An ostomy baseplate according to any preceding claim wherein the woven material comprises a mixture of cotton and polyester yams.

10. An ostomy baseplate according to any preceding claim wherein the baseplate comprises a rigid convex disc.

11. An ostomy baseplate according to any preceding claim wherein the woven material is ring-shaped and has an ovular outer circumference.

12. An ostomy baseplate according to claim 11 wherein the ovular outer circumference is shaped to match the shape of a corresponding ostomy pouch.

13. An ostomy baseplate according to any preceding claim wherein the woven collar has a water-resistant coating.

14. An ostomy baseplate according to any preceding claim wherein the baseplate comprises two discs stacked upon one another and a gap is provided between the two discs.

15. An ostomy system comprising an ostomy pouch and the ostomy baseplate of any preceding claim, the ostomy pouch comprising a coupling component corresponding to the coupling component of the baseplate.

16. An ostomy system according to claim 15 wherein the ostomy pouch comprises a woven comfort material.

17. An ostomy system according to claim 16 wherein the woven comfort material of the pouch is formed from the same woven material as the woven material of the collar.

18. An ostomy system according to any of claims 14 to 18 wherein the woven comfort material of the ostomy pouch is the same colour as the woven material of the baseplate.

19. A method of manufacturing an ostomy baseplate, the method comprising; providing an adhesive component for coupling the baseplate to the abdomen of the ostomate around a stoma and attaching a collar formed of woven material to the adhesive component to form a baseplate.

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