MXPA99007369A - Improvements that refer to bags for osto - Google Patents

Abstract

The present invention relates to an ostomy bag (10) including a front wall (12) provided with a comfort layer (16) and a ventilation (22). A cover layer (24) with openings is fixed or secured to the front wall (12) through the comfort layer (16) to define a chamber for a filter element (28) and to provide a smooth surface to which an adhesive label can be applied. The cover layer (24) includes a plurality of openings (30), and the flow rate through the vent can be controlled by placing the sticker to selectively block one or more of the openings (30). An adhesive seal (40) includes patterns or guides of both circular and non-circular cut (in the form of a racetrack) to enable the opening to be cut to any desired shape and size. The seal (40) is fixed or secured to the bag along a welding line that has a shape corresponding to a silhouette of a circular shape and shaped like a race track, combines

Description

IMPROVEMENTS THAT REFER TO OSTOMIA BAGS Field of the Invention The present invention relates to ostomy bags for the collection of waste, or discharges, of a temporary or permanent ostomy opening. The invention is equally applicable to so-called one-piece designs in which the bag is integral with a fastening pad or seal, for attaching the bag to the body of the person with the ostomy, and with so-called two-piece designs in which the pad or seal to secure the bag to the person suffering from the ostomy is separated from, and is releasably fixable, to the bag.

Background of the Invention One aspect of the invention relates to filtered flatus ventilation which is provided in certain ostomy bags. Ventilation allows the flatus gas within the bag to escape, to avoid balloon-shaped bag formation. A sticker is sometimes provided, which is Ref.031062 initially adhered onto the vent outlet to prevent, initially, any gas from flowing through the vent. The purpose of this is, when the bag is torn first, to allow some of the gas to accumulate inside the bag and thereby prevent the sides of the bag from sticking together, which could cause undesirable crushing. Once the bag has started to inflate (and the sides separated from each other), the gummed stiqueta can be removed to allow the flatus to be ventilated in the normal way. In a broad aspect, the invention provides a filtered ventilation for an ostomy bag having a plurality of outlets, and an adhesive label means which can be positioned to selectively expose or cover one or more of the plurality of outlets. This aspect can provide a convenient, and still very simple, way to allow the user to control the flow velocity of the flatus passing through the vent. This is the opposite of the prior art in which the sticker and the single output can only provide on / off control. When the sticker is removed, if the flow velocity of the gas through the filter is too high (depending on a particular person's metabolism and food consumption), the sides of the bag may tend to stick together again, and cause the crush. However, with this aspect of the present invention, the person with ostomy can selectively cover, or discover, a desired number of the outlets to control the rate at which the flatus is ventilated, and thereby control the degree of inflation of the bag to prevent crushing. In one embodiment, the gummed-sticker means could be sized so that they are of sufficient size to be able to cover all the outlets (when placed properly) and can expose one or more of the outlets that are moved to an off-center position. In an alternative embodiment, the patch means may consist of a number of separable sticker segments which may be removed by detachment to selectively expose one or more outlets under each segment. In a still further form, the sticker means may comprise a plurality of individual stickers each of which may be affixed, or removed, from a respective outlet.

The outlets may be in the form of slots, or other openings, formed in a plastic film covering, for example, the filter. Alternatively, the outlets may be in the form of spaces between one or more joints or welds, or welding segments. If desired, a flow restriction layer may be provided upstream of the outlets (eg, under a plastic layer having exit openings). This may allow the openings to become larger, and more easily identifiable, without such critical dependence on the size of the opening. In a further aspect, the invention provides ventilation for an ostomy bag, ventilation comprises opening means, a restriction layer of the flow upstream of the aperture means, and adhesive label means which can be placed to selectively block one or more areas of the opening means. The presence of the restriction layer of the flow can make it possible for the larger opening (s) to be used because the flow is restricted by the layer. The opening may be either a single opening (eg, a relatively large opening), or a plurality of individual openings.

The restriction layer of the flow, for example, may consist of a microporous material. The layer, in some modalities, could be formed by a filter element. In a further aspect, the invention relates to an ostomy bag having a so-called comfort layer. Such a comfort layer is generally soft and permeable, and is provided outside the non-permeable plastic wall of the bag to provide more comfortable wearing characteristics. Users generally prefer a comfort layer that is to be provided both on the back face (ie adjacent to the skin) and on the front face (ie facing towards the wearer's clothing). In this aspect, the invention provides an ostomy bag in which a first wall of the bag is provided with a comfort layer and with a ventilation for flatus, the bag also comprises adhesive label means fixed, or fixable, to the ventilation, to control the flow of the flatus through ventilation. Preferably, the exit of the ventilation is defined by at least one segment of plastic material, substantially impermeable, smooth, placed outside the comfort layer. This can provide a surface with excellent characteristics to allow the adhesive label means to adhere to provide a gas-tight (or at least substantially gas-tight) seal, and thereby make it possible for the sticker to control the flow of the adhesive. gas through ventilation. In the best understanding of the inventor, it is unknown until now to use a sticker for ventilation through a wall that has a comfort layer. In particular, it could be difficult to achieve a gas-impermeable type seal if the sticker is applied directly to the comfort layer. In the preferred embodiment, the provision of the smooth plastic material outside the comfort layer can overcome this problem. As previously explained, there is a need for some form of device, at least initially, to block or restrict flow or flatulence through ventilation, to prevent crushing. The ability to provide a simple adhesive label means with a bag adorned with a comfort layer - is an extremely significant advantage. Preferably, the comfort layer is provided outside of the majority of at least the upper portion of the bag. Preferably, the smooth material described above is deposited on a portion of the comfort layer, and is secured or secured to the underlying wall of the bag through the comfort layer (eg, by welding, or by an adhesive). Preferably, the smooth material outside the comfort layer forms an outer cover for the filter, and is secured to the underlying bag wall around the filter. The fixing line (for example welding) can be continuous, or it can be discontinuous to provide one or more ventilation outlets. In another aspect, the invention relates to the construction of a filtered ventilation for an ostomy bag which has a comfort layer. In this third aspect, the invention broadly provides an ostomy bag comprising a first wall of plastic material substantially impervious to liquid and gas, an ong that is provided in the first wall to allow ventilation of the flatus, a comfort layer provided outside the first wall, and a cover layer of the filter outside the comfort layer and secured to the first wall through the comfort layer, the cover layer and the portion of the first wall extend under the layer of cover defining a housing in which a filter is received to process the ventilated flatu through the ong. The filter, for example, may include a material for deodorizing the flatus, and / or the material for absorbing any liquid which accidentally escapes through the ong in the first wall. The filter can be placed between the first wall and the comfort layer. In this case, the filter is preferably fixed to the first wall, to provide a seal around the opening in the first wall. Alternatively, the filter can be provided between the comfort layer and the cover layer. In this case, the filter can be either fixed to the cover layer, or it can be fixed to the first wall. A still further aspect of the invention relates to the adhesive seal which is conventionally provided for securing or securing the bag to the wearer's skin. In accordance with this broad aspect, the seal (or a cover layer provided on the seal) is provided with guidelines or guides to enable a person to cut the seal to a desired size of the opening, the guidelines or guides include at least a pattern or indication generally circular, and at least one pattern or indication generally not circular.

Preferably, the non-circular pattern or indication is a pattern or indication so called racing track, which defines a shape having generally straight sides, and rounded ends. Preferably, a plurality of circular guides or guides, and a plurality of non-circular guidelines or guides, are provided. This aspect of the invention can provide the same bag that is usable for a conventional ostomy application (where the opening is normally circular) and also for other applications, including temporary ostomy applications (eg, handle-shaped ostomy). For a temporary ostomy application, a more elongated opening is desirable to accommodate a temporary fold or fold in the intestines of the person with ostomy. In the best knowledge of the inventor, until now the bags have been available exclusively with guidelines or circular guides, or exclusively with guidelines or guides in the form of a race track. This has meant that a specific bag has to be obtained to suit the desired application. However, a single bag can be provided, which the user can very easily adapt to the size of the circular, or non-circular, correct opening.

This aspect of the invention can be used either in a one-piece bag design, or in a two-piece bag design. Especially (but not exclusively) for the design of a piece, it is preferred that the seal be secured to the bag (or to the coupling element of the bag) by means of a welding or gluing line having a non-circular and different shape of a race track. Preferably, the shape is defined by a combination of a circular shape and a racing track shape, the shape corresponding to a profile of one superimposed on the other. The use of such a welding line (or glue) could be the most efficient way to accommodate a large circular cut, or race track, without requiring the adhesive seal to be unnecessarily large. Preferably, the seal also has a "hybrid" external shape generally based on the profile of a circular shape and a race track shape superimposed on each other. It will be appreciated that the guidelines or guides could be provided (by printing) directly on the adhesive seal, or they can be provided on a releasable sheet which protects the adhesive surface of the seal before use. The releasable sheet is proposed to be removed by detachment before the adhesive seal is pressed against the skin. Although the above aspects can be used independently of each other, additional benefits may arise by combining two or more of the above aspects in combination. The invention contemplates that any of the above aspects can be used in combination. The embodiments of the invention are now described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a sectional view through a first embodiment of an ostomy bag; Figure 2 is a schematic exploded view showing the construction of the filter and the filter housing; Figures 3a-3e are schematic plan views showing the adjustment of the sticker for flow control; Figure 4 is a rear view of the bag of Figure 1; Figures 5a and 5b illustrate different opening cuts in the seal shown in Figure 4; Figure 6 illustrates a modified and sealed bag with a mechanical coupling; Figures 7a and 7b are schematic views showing a modified cover design for filter; Figures 8a and 8b illustrate an alternative construction of the filter; Figures 9a and 9b illustrate a still further construction of the FIGS. 10A-10D schematically illustrate the placement of the sticker to control flow through the filter of Figures 9a and 9b; Figs. 1a and 11b illustrate an additional modified design of the filter; Figures 12a-12e schematically illustrate the detachment of the sticker to control the flow through the filter of Figures 11a and 11b. Referring to Figures 1-5, the ostomy bag 10 includes a wrap formed by a front wall 12 and a back wall 14 both of plastic material which is substantially impervious to liquid, and to gas. Such plastic materials are well known in the art, and typically can consist of a laminate of one or more layers of ethylene vinyl acetate (EVA) on either side of a polyvinylidene chloride barrier layer (PVDC). Other materials may be used if desired.

A front comfort layer 16 is positioned outside the front wall 12, and a back comfort layer 18 is positioned outside the back wall 14. The comfort layers are generally soft and gas and liquid permeable. Typically comfort layers are made of Nylon, or polyethylene, or a mixture of polyester, viscose and rayon. The front and rear walls 12 and 14 and the comfort layers 16 and 18 are secured together by welding around a peripheral seam 20. The welding can be effected by an RF welding head, for example. Alternatively, the seam can be formed by pulse welding, or by a cutting and sealing process with heating. A housing 22 of the filter is located towards an upper portion of the front wall 12. The housing is formed by a filter cover 24 which is secured through the front comfort layer 16 to the front wall 12 in a generally watertight manner. gas. In this embodiment, the filter cover 24 is fixed by welding, and the heat generated by welding is sufficient to at least partially melt the comfort layer to effect a reliable seal between the filter cover 24 and the front wall 12. The filter cover for example, it may be made of the same material as the front and rear walls 12 and 14. An opening 26 is formed in the front wall 12 under the filter cover 24, and a filter element 28 is fixed or secured to the front wall 12 on the opening 26. In this embodiment, the filter is a deodorizing filter to deodorize the flatulent gas, and includes a deodorizing agent, such as carbon. The filter may consist of a foam that carries the carbon, or may consist of another material, such as carbon cloth. If desired, the filter may also include additional agents, such as a super absorbent agent to absorb any liquid accidentally leaking through the opening 26. A suitable deodorizing filter is manufactured by Freudenberg Limited, for example under the reference "option twenty". Although the filter is illustrated so that it rests between the front wall 12 and the front comfort layer 16, it will be appreciated that in other embodiments, the filter could be placed between the filter cover 24 and the comfort layer 16, or on the other side of the front wall 12 (that is, inside the envelope). The filter may need to be sealed to at least one of the front wall 12 and the filter cover 24, to prevent the flatuus from leaking around the outside of the filter element 28. A plurality of outlets for the gas 30 are formed in the filter cover 24. In the preferred embodiment, the outlets 30 are relatively small openings (pin holes) in the filter cover 24. The number of openings can be varied when desired; in the present embodiment, four openings are illustrated. One or more of the openings 30 can be selectively blocked by means of an adhesive label 32. As best seen in Figure 3, the sticker consists of a main circular portion 34, and a tab 36 for the fingers, to make it possible that the sticker is held and detached from the surface of the filter cover 24. The combination of the plurality of openings 30 and the sticker 32 makes it possible for the user to control the flow velocity of the gas through the vent and the filter . As best seen in Figure 3a, the size of the main circular portion 34 is sufficient to make it possible for the sticker, when properly placed, to block all of the four openings 30. This completely cuts off the flow through the filter ventilation. As illustrated in Figures 3b-3e, by placing the sticker 30 appropriately, 1, 2, 3 or all 4 of the openings 30 may be exposed to allow a progressive increase in the flow velocity through ventilation of the filter. Such use of the sticker can provide the user with extremely powerful flow control, still easy to use. In addition, it will be appreciated that the use of the material (in this case the filter cover 24) outside the front comfort layer 16 makes it possible for the sticker to be applied to achieve a gum-tight seal substantially gas-tight. The sticker could be virtually ineffective if it were applied directly to the porous comfort layer. Referring to Figures 1 and 4, the back wall 14 and the back comfort layer 18 include the opening of the stoma 38 to receive the stoma for the person with the ostomy, and to allow the stomal discharge in the envelope. Fixed to the back wall 14, and surrounding the stomal opening 38 is an adhesive seal 40 to allow the bag to be secured to the skin of the person with the ostomy.

The seal or wafer 40 generally consists of a layer of adhesive 42 compatible with the skin, a backing layer 44 of plastic material welded to the back wall 14, and a silicone release sheet 46 having a tongue 48 for the fingers , whereby the release seam 46 can be removed by detachment of the adhesive 42 to expose the adhesive face. As best seen in Figure 4, the release sheet 46 is printed with patterns 50, (50a and 50b) to enable the user to cut the seal to a desired aperture size prior to the equipment. This can be done either by the person with the ostomy, or by a supervising nurse or other medical practitioner. In this modality, the guidelines or guides include circular guidelines 50a and non-circular guidelines (in the form of a race track) 50b. The patterns or circular guides 50a define a range of openings of circular shape of different sizes, to adapt to the permanent stomata, which generally have a circular or almost circular configuration. The patterns or guides in the form of a race track 50b define a number of elongated openings of different sizes, suitable for temporary stomata (for example stomata formed in a loop-like operation of ostomy, in which a portion of the intestine is extracted and folded around a suitable rod, and is opened "in slices" to define an elongated temporary stoma). As mentioned above, the backing layer 44 is welded to the back wall 14. The welding line is illustrated in Figure 4 by the shaded region 52. The welding line 52 defines a shape which is a silhouette of a shape circular superimposed on a race track shape. In this embodiment, the welding line 52 corresponds to the silhouette surrounding the largest allowable circular cut, and the largest allowable runway cut. The use of such a special form of the welding line 52 can provide a more versatile bag design which makes large circular cuts possible (see for example Figure 5a), and large race track cuts (for example, see Figure 5b) , which will be accommodated without the unnecessary increase in seal size, or the size of the weld line between seal 40 and bag 10. As illustrated in Figure 4, the total shape of seal 40 is similar to the shape of the welding line 52, and corresponds to the silhouette of a circular shape superimposed on a racetrack shape. Although the above embodiment is a one-piece bag, it will be appreciated that the same principles could be applied to a two-piece bag (Figure 6) in which the adhesive seal 40 is not permanently fixed to the rest of the bag, but is a separate element 58 which is releasably attachable to the bag, for example, by a mechanical coupling, or an adhesive coupling. Such couplings are well known in the art, and need not be described further here. Figures 7a and 7b illustrate, in one form, the relationship between the size of the openings in the filter cover 24, and the need for the openings to provide a restriction to the flow rate. It will be appreciated that, in order to achieve an adjustable flow, each individual opening must provide a restriction to the flow of the flatus gas. This can be achieved by making the apertures 30 suitably small, for example, in the form of slots (Figure 7a). Alternatively, a flow restriction layer 60 can be provided under the filter cover 24 to restrict flow through each opening 30. This could allow the use of very large openings 30, making them easier to identify than if the narrow slots had to be used. A suitable restriction layer is a microporous material. Figures 8a and 8b illustrate a modified construction of the filter without the presence of a comfort layer. In this modality, the filter element 28 is located inside the envelope, on the inner face of the front wall 12. The opening 26 in the front wall 12 is typically approximately 8-10 mm in diameter. To allow use to control flow with a sticker, the filter cover 24 (now simply referred to as an outer cover 24) is affixed to the outer face of the front wall 12, and is provided with small pin jobs 30. The size of each bolt hole 30 is small enough to restrict the flow of the flatuus through the openings when one or more of the openings is covered by the gummed label 32. If desired, a restriction layer (not shown) similar to the restriction layer 60 may be provided under the cover layer 24 if larger, more easily identifiable openings 30 are required. In this embodiment, since the filter element 28 is located within the envelope, it is preferred that a semi-porous protective membrane, or curtain, 62 be provided on the internal face of the filter, to prevent fecal matter in the bag from directly contacting the filter. with the filter element 28. Figures 9a and 9b illustrate a further modified embodiment in which the filter element 28 is located outside the front wall 12 of the bag. The cover layer 24 has three relatively large openings 30 which are arranged or distributed in a generally straight line. A restriction layer 62 (microporous membrane) is located under the cover layer 24, to provide the flow restriction required for the size of the opening. Since the openings 30 are arranged in a line, the restriction layer 62 is provided in the form of a narrow strip, to reduce the waste of material. Figures 10A-10B illustrate the various positions of the sticker 32 on the openings 30, to vary the flow from zero (Figure 10a) - to the total flow (Figure 10O). FIGS. 11 and 11b illustrate a still further modified construction of the filter housing. In contrast to the previous embodiments in which the cover layer 24 is completely sealed around the filter element 28 and has openings 30 through the cover layer 24, the present embodiment employs a completely impermeable cover layer 64, and the outlets of ventilation are defined by gaps or voids 66 between the welding segments 68 that secure the cover 24 to the front wall 12 of the bag. In the present embodiment, the cover 24 is illustrated to have a rounded end 70 to correspond to the contour around the filter and a square end 72 in which the outlets 66 for the gas are defined. Figures 12a-12e illustrate how the flow rate through the outlets 66 can be controlled by means of a sticker 74. Although a single sticker could be used as in the previous embodiments, here a multi-segment sticker 74 consisting of segments 76 is employed. The flow velocity is controlled by the detachment by detachment of the individual segments 76 of the outlets 66. The segments may be separated from each other, or they may be fixed together by rupturable perforations 78 to allow the segments to be removed by tearing. Although the modalities illustrated in Figures 8-12 do not include a comfort layer, it will be appreciated that the embodiments may be modified to include a comfort layer using the same principles as described in the first embodiment. It will be appreciated that many modifications of the details can be made without departing from the scope and principles of the invention. Although features that are believed to be of particular importance are defined in the appended claims, the applicant claims protection for any novel feature or idea described herein and / or illustrated in the drawings whether or not emphasis has been placed on the same.

It is noted that in relation to this date the best method known by the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Having described the invention as above, property is claimed as contained in the following

Claims (33)

1. An apparatus comprising a filtered ventilation, of controllable flow velocity, for an ostomy bag, the vent has a plurality of outlets and a device for controlling the flow velocity of the gas through the vent, the device is characterized in that it comprises adhesive label means which can be placed and repositioned to selectively expose or cover one or more of the plurality of outlets, and thereby variablely regulate the flow velocity of the gas in accordance with the exposed outlets.

2. An apparatus according to claim 1, characterized in that the flow velocity is controllable according to the number of exits exposed.

3. The apparatus according to claim 1 or 2, characterized in that the sticker means comprise a sticker sized so that it is of sufficient size to be able to cover all the outlets.

4. The apparatus according to claims 1, 2 or 3, characterized in that one or more of the outlets comprises an orifice in a layer to which the adhesive label means are adherable.

5. The apparatus according to claims 1, 2 or 3, characterized in that one or more of the. Outlets comprise a space between one or more of the outputs, or welding segments.

6. The apparatus according to any of the preceding claims, characterized in that it also comprises a flow restriction layer provided upstream of the outlets.

. An apparatus comprising a ventilation for an ostomy bag, ventilation is characterized in that it comprises opening means, a restrictive layer of the flow upstream of the opening means, and adhesive label means which can be placed to selectively block one or more areas of the opening means.

8. An apparatus according to claim 7, characterized in that the opening means comprise a plurality of individual ventilation openings.

9. The apparatus according to claim 6, 7 or 8, characterized in that the sticker means comprises a plurality of stickers or sticker segments.

10. An apparatus according to claims 6, 7, 8 or 9, characterized in that the sticker means are positioned or can be placed to selectively block the entire area of the opening means.

11. The apparatus according to claims 6, 7, 8, 9 or 10, characterized in that the restrictive flow layer comprises a microporous material.

12. An apparatus according to any preceding claim, characterized in that the bag comprises a first wall provided with ventilation and with a comfort layer.

13. An ostomy bag, characterized in that it comprises a first wall, provided with a comfort layer and with a ventilation for flatus, the bag also comprises adhesive label means fixed, or that can be fixed, to the ventilation to facilitate the control of the flatus flow through ventilation.

14. A bag according to claim 12 or 13, characterized in that the outlet of the ventilation is defined by at least one segment of plastic material placed outside the comfort layer, and to which the adhesive label means can be adhered.

15. A bag according to claim 14, characterized in that the plastic material has a generally smooth surface to which the sticker means can adhere.

16. A bag according to claim 14 or 15, characterized in that the plastic material is a substantially impermeable material.

17. A bag according to claims 14, 15 or 16, characterized in that the plastic material is superimposed on a portion of the comfort layer and is secured or secured to the first underlying wall of the bag through the comfort layer.

18. A bag according to claims 14, 15, 16 or 17, characterized in that the plastic material forms an external cover on a filter, and is fixed or secured to the wall of the bag around the filter.

19. A bag according to claim 18, characterized in that the fixing line is continuous.

20. A bag according to claim 18, characterized in that the fixing line is discontinuous to provide a plurality of outlets through which the filtered gas can be vented.

21. A bag according to any of claims 12 to 20, characterized in that the comfort layer is provided outside of the majority of at least one upper portion of the bag.

22. An ostomy bag, characterized in that it comprises a first wall of plastic material substantially impervious to liquid and impermeable to gas, an opening provided in the first wall to allow ventilation of the flatuus therethrough, a comfort layer provided outside of the the first wall, and a filter cover layer outside the comfort layer and secured to the first wall through the comfort layer, the cover layer and the portion of the first wall extending below the cover layer defines a housing in which a filter is received to process the ventilated flatuus through the opening.

23. An ostomy bag according to claim 22, characterized in that the cover layer has a plurality of openings therein to provide a plurality of ventilation outlets.

24. An ostomy bag according to any preceding claim, characterized in that it further comprises an adhesive seal for securing or securing the bag to a person's skin, wherein the seal, or a cover layer provided on the seal, is provided with guidelines or guides to make it possible for a person to cut the seal to a desired opening size, the guidelines or guides include at least one generally circular guide or guide and at least one guideline or guide generally not circular.

25. An adhesive seal for directly or indirectly securing or securing an ostomy bag to a person's skin, characterized in that the seal, or a cover layer provided on the seal, is provided with guidelines or guidelines to enable a person to cut the Seal to a desired opening size, the guidelines or guides include at least one generally circular guide or guide, and at least one generally non-circular guide or guideline.

26. A seal according to claim 24 or 25, characterized in that the non-circular pattern or patterns had or have a racetrack shape.

27. A seal according to claims 24, 25 or 26, characterized in that a plurality of circular guides or guides and a plurality of non-circular guidelines or guides are provided.

28. An ostomy bag, characterized in that it comprises a pouch wrap and an adhesive seal as defined in claims 24, 25, 26 or 27, the adhesive seal is secured or secured to the wrapper around a fastening line in the form of closed loop, the line of fixation has a form which is non-circular and different from a race track.

29. A lateral device for the body, for attachment to an ostomy bag, the lateral device for the body comprises a seal as defined in claims 24, 25, 26 or 27, and a coupling portion for releasably securing the bag, wherein the seal is fixed or secured to the coupling portion around a closed fastening line, the fastening line has a shape which is non-circular and in a manner different from the race track.

30. A bag according to claim 28, or a device according to claim 26, characterized in that the fastening line is defined by a combination of a circular shape and a racing track shape, the combined shape corresponds to a silhouette of one superimposed on the other.

31. The use of an adhesive label means to variably control the velocity of the ventilation flow through a filtered ventilation for an ostomy bag, the ventilation has a plurality of outlets, and adhesive labeling means that are movable to expose or cover a or more of the plurality of outlets, to regulate by this the gas flow velocity in accordance with the exposed outlets.

32. The use according to claim 31, characterized in that the flow velocity is determined by the number of the exposed outputs.

33. A method for variably controlling flow velocity through filtered ventilation of an ostomy bag, the method is characterized in that it comprises placing sticker means for selectively exposing or blocking one or more of a plurality of ventilation outlets. , to regulate the flow velocity of the gas according to the exits exposed.