FR2548014A1 - POCKET FOR STOMISE - Google Patents

Abstract

THE INVENTION RELATES TO AN OSTOMIS POCKET. IT RELATES TO A POCKET IN WHICH A PART OF THE INTERNAL WALL 10 IS CLAMPED BETWEEN TWO ELASTIC RINGS 31, 33 OF A POCKET SUPPORT RING WHICH IS INTENDED TO BE PLACED AROUND THE OSTOMA. THE INTERNAL LAYER OF POCKET 10 AND AN ADHESIVE LAYER 45 ARE CLAMPED BETWEEN THE TWO ELASTIC RINGS. FURTHER, A SKIN PROTECTIVE LAYER 14, SHAPED FROM A FIBROUS MATERIAL, MAY ALSO BE CLAMPED BETWEEN THE TWO RINGS. APPLICATION TO OSTOMIS ACCESSORIES.

Description

The present invention relates generally to an ostomy pouch

  intended to be carried by the body of a person to receive the materials discharged through an ostomy, the bag comprising opposing inner and outer walls 5 whose edges are connected so as to delimit an internal cavity for receiving the materials being evacuated, the inner wall having an opening for accommodating the stoma so that it communicates with the inner cavity, a layer of adhesive tape being adapted to support the pocket on the body while the stoma communicates with the cavity is placed near an opening formed in the human body during a

  surgical operation and it is intended to receive and contain the materials evacuated by this opening.

  More specifically, the invention relates to bags for collecting the material discharged through the digestive system, through an orifice formed in the wall of the abdomen and called "stoma". It is sometimes necessary, for medical reasons, to surgically form an opening in the abdomen of a person and to collect the material.

  evacuated through this orifice for indefinite periods.

  Such an operation is one in which the intestine of a patient is communicated through the abdominal wall. When the colon crosses the abdominal wall, the operation is called a colostomy, when the small intestine passes through the abdominal wall. This operation requires the maintenance of an orifice in the patient's anatomy for indefinite periods. Another operation which sometimes requires the maintenance of an orifice for a relatively short period of time is an appendectomy, when an appendix burst and that the evacuation of undesirable waste, released into the abdominal cavity, is necessary All these surgical operations require a pocket, a bag or another container intended to collect

  and retain the evacuated material through the corresponding holes formed by surgical operations.

  Various pouch constructions have been used for the collection of ostomy waste and other body openings. Some of the pockets have two facing walls formed of a soft, thin plastic material connected along the edges. an oval or rectangular upper section and a lower section which tapers downwards and which is connected to a truncated outlet opening The inner wall of the pocket has an inlet opening for accommodating the stoma, which generally extends beyond the wall abdominal and in the internal cavity

from the pocket.

  Elements for holding the pouch in position around the stoma and for sealing

  The inlet opening with respect to the stoma is often associated with the inlet opening so that unpleasant odors can not escape from the pocket cavity.

  An example of support of the pocket in position cupremd mountson a ring which is itself supported by one or more straps or belts passing around the chest and / or buttocks of the person carrying the pocket. In this disposable ladle, in which material surrounding the pocket entrance opening is disposed between two rings, is shown in US Pat. No. 2,684,675. ostomy receiver for transforming a thin disposable bag into a colostomy accessory However, this arrangement has many inconveniences nts For example, the thin sheet of plastic material is uncomfortable when it bears against the surfaces of the body and it can stick and cause excessive perspiration The patent suggests solving this problem by using a separate absorbent pad placed in con touch of the body, but this pad can also absorb the fluids from the stoma and can quickly give an unpleasant odor Another problem with this construction is that the material of the pocket is maintained only with play between the two rings and can be torn off the rings in a relatively easy way, thus posing a very embarrassing problem since the waste can

  to be evacuated prematurely in the clothes of the person.

  The effectiveness of this arrangement is entirely dependent on the user's ability to mount and use this arrangement. It has also been proposed to attach the bag directly to the body with an adhesive tape or the like attached to the pocket

  either by welding or gluing with an adhesive.

  This solution has also proved to be defective because the material of the adhesive tape is not easily connected to that of the pocket so that the connection is very difficult and can cause the formation of a weak fitting which can separate during Although it has been proposed to attach the inner wall of the pouch to a support ring by gluing or the like, obtaining a secure attachment between the material of the wall of the pouch and the plastics material. whose support rings can

to be trained is difficult.

  Another disadvantage of the prior art is that no hermetic seal is formed around the

  stoma between a ring or a support ring and the body.

  A karaya rubber liner or inner ring, as described in U.S. Patent No. 4,387,713, has been used to increase the sealing of colostomy bags around the stoma. sealing is also difficult to connect directly

  to a wall of the pocket or a support ring.

  The invention overcomes the disadvantages of prior art by using certain features previously indicated such as a support ring,

  adhesive tape and karaya rubber, these features being combined with each other and with other features, so that the ostomy pouch made is extremely efficient and inexpensive.

  The ostomy pouch according to the invention has a

  support ring formed of two elastic rings

  each of which has a clamping position in an opening formed in the other A resilient interlocking connection is placed between the two resilient rings and allows attachment of an extension of the inner wall of the pocket and / or layer of adhesive material between the two rings. The extension of the inner wall may comprise a part of the layer of the material intended to give the body a feeling of comfort. The pocket, together with the two concentric snap rings, forms a disposal assembly after use which can be completely replaced after

  a certain period, depending on the needs of the user.

  The resilient interlocking structure which is advantageously used for the connection between the inner and outer rings of the pocket support ring has a number of advantages. This interlocking locking structure comprises a press fit of the cooperating members. the interlocking of the inner surface of the opening formed in the elastic ring and the surface forming the outer edge of the inner ring. The cooperating members preferably comprise a rib and a groove on each of the surfaces, the configuration and the dimension. the rib of a first surface corresponding to the configuration and the size of the groove of the other surface, the two elements being opposite when the inner ring is locked in the outer ring the materials which do not adhere usually are thus tightly connected to each other in a sealed and safe manner by this engagement of Thus, the thin plastic wall of the bag is connected very closely to the support ring in an efficient and inexpensive manner, allowing

mass production.

  The resilient latching support ring also provides a sturdy base for supporting a seal and fasteners for a pocket support belt. The seal is preferably made of karaya gum. (also called sterculia gum) or gum tragacanth A characteristic of these gums is that they absorb moisture and thus become viscous and sticky when subjected to moods such as digestive fluids and / or perspiration. In addition to the seal, a certain seal can also be achieved using a layer of a pressure-sensitive adhesive intended to stick to the skin of the abdomen around the stoma. This adhesive layer also supports the pocket in position on the body and, in some cases, it can itself ensure sufficient support for a belt to be

more necessary around the body.

  Although only the inner wall of the pocket can be retained between the inner and outer rings of the support ring, the connection between these parts preferably constitutes a base for fixing the adhesive layer and the layer providing comfort. The adhesive layer is preferably a woven or nonwoven porous fibrous sheet impregnated with a pressure-sensitive adhesive composition. The comfort-giving layer or protective layer of the skin is preferably formed of a sufficiently porous woven or non-woven fibrous material. The coupling thus formed between the three layers is very robust and particularly reliable and forms a tight connection between the inner ring and the inner wall of the pocket which participates in the process. the elimination of the escape of unpleasant odors from within

the pocket.

  A number of variations are possible with respect to the basic structure, in which the three layers are closely held between the inner and outer rings of the support ring. For example, the comfort layer forming part of the inner wall can be omitted. Alternatively, the adhesive layer may be attached to an inner surface of the support ring and the comfort or protective layer may be affixed to the outer surface of the support ring by welding or using an adhesive, only the inner wall of the bag being clamped between the two elastic rings Other variants include the secure attachment of the inner wall of the bag to the outer surface of the inner ring, the adhesive layer and the protective layer being secured between the rings Elastic The adhesive layer or the comfort layer may also be attached to one surface of the outer elastic ring, the other layer being secured in the connector for between the two elastic rings and the inner wall of the bag fixed by external bonding of the inner ring When a portion integral with the inner wall of the bag is not clamped between the two elastic rings, the inner wall is preferably fixed by welding or gluing 15 to one of the two layers so that one part of the other

  layer forms an extension of the inner wall of the pocket, this extension being clamped between the two elastic rings.

  The bonding surface of the inner wall and the other layer is preferably adjacent to the elastic coupling. Other variations are possible and come within

the scope of the invention.

  Other features of the Ostomy pouch are the formation of a peelable protective coating on the seal, the formation of a peelable protective coating on the inner surface of the adhesive layer, a connection for attachment and rapid release between the support ring and a belt, and a resilient clip for sealing

  at the truncated opening outlet of the pocket.

  Other features and advantages of the invention will be better understood when reading the following description of embodiments and with reference to

  In the accompanying drawings in which: Figure 1 is a perspective of the invention showing protective coatings and different layers partially removed from an element placed below; Figure 2 is an elevation in partial section along the line 2-2 of Figure 1, showing the pocket in its use position; Figure 3 is an exploded partial section of the half of the structure of the support ring and layers and associated elements, the section corresponding to lines 4-4 of Figure 1; Figure 4 is similar to Figure 3 but shows the support ring and the layers and associated elements 10 in the cooperation position; Figure 5 is similar to Figure 4 and shows a variant of the invention; Figure 6 is similar to Figure 4 but shows another variant of the invention; Figure 7 is similar to Figure 4 and shows another variant of the invention; and FIG. 8 is similar to FIG.

  yet another variant of the invention.

  In FIGS. 1 and 2, the pouch 9 for ostomate 20 according to the present invention comprises an inner wall 10 and an outer wall 12 A porous layer 14 abuts against the external face of the inner wall 10 so that it forms a coating Protector giving a certain comfort in contact with the skin of the body 13 against which the pocket 25 bears during use As indicated in FIGS. 1 and 2, the walls 10 and 12 and the layer 14 are connected in a single piece, preferably by welding, at a weld 15 placed along the upper and lateral edges of the pocket 9 The walls 10 and 12 are connected to each other by the weld 15 and delimit

thus an internal cavity 11.

  The walls of the pouches according to the invention are preferably formed from an extruded tube of a thin film plastics material, such as polyethylene, polypropylene, polyvinyl chloride and other synthetic resins which may The polyvinyl chloride is preferable because it has a dipolar composition which has good heat-sealing properties when exposed to dielectric heaters of the type which can be used for welding which adheres the layers of the film to one another along the edges of the pocket as previously indicated The adhesive layer and the porous material of which the protective layer providing comfort is formed may also be formed of a resin Thermosoluble Synthesis A fiber material 10 woven or nonwoven is advantageous for the formation of the comfort layer A similar material impregnated with a pressure-sensitive adhesive composition is

  preferable for the adhesive layer.

  The heat sealing is preferably carried out by dielectric heating by high frequency radiation, although other types of heat sealing and sealing may be used, for example heating press or ultrasonic sealing. The layers of the plastic film as well as the comfort layer and the adhesive layer 20 may be adhered by adhesive seals formed otherwise than by heat sealing, for example by welding after dissolving in a solvent or by an intermediate layer of an adhesive composition. A solvent comprises wiping the opposing layers of the film layers with a solvent of the film material such as cyclohexanone, when the films are formed of polyvinyl chloride. Similarly, one or more surfaces facing the layers may be coated with an adhesive composition which adheres closely to the plastic film or other layers that must be made integral. The skin protection layer 14 may also be adhesively bonded to the inner wall 10 by a side weld. Although the material of the layer 14 may be heat sealable with the wall material, this is not necessary because the walls of the ladle melt in the region of the weld 15 and the molten resin flows into the pores and capillaries of the porous layer 14 After cooling, the resin that has cast firmly secures the protective layer to the inner wall of the poached

along the weld 15.

  A narrowed lower portion 17 of the bag 9 has an outlet opening 18 for emptying the bag during use without the need for the bag to be removed from the stoma. The outlet opening 18 can be closed by a 20 in which the narrowed end 17 forms a loop as shown in Figure 2 After forming a loop with the pocket portion 17 around the central portion 21 of the clamp 20, this portion is pushed down between the U-shaped sides of the clamp so that a gripping member 23

  either in contact with the underside of a transverse bar 24.

  Referring now to Figures 3 and 4 which show a ring or a support ring bearing the general reference 30 and having an elastic outer ring 31 defining a central opening formed by an inner wall 32, intended to accommodate an internal elastic ring 33 The inner wall 32 of the opening of the outer ring has two conical surfaces 36 and 37 spaced apart radially to define a groove 38 and an adjacent rib 39. Similarly, an outer wall 40 of the inner ring 33 has two conical surfaces 41 and 42 radially spaced so that they form a groove 43 and an adjacent rib 44 The inner wall 32 of the outer ring 31 and the outer wall 40 of the inner ring 33 form clamping surfaces by fitting and the two rings can thus be connected by interlocking in the form of a single support ring 30, when the inner ring 31 is in the clamping position in the Opening of the outer ring The elastic rings 31 35 and 33 are formed preferably by injection molding

  of a suitable polymeric material.

  The outer diameter of the surfaces of the inner ring 41 and 42 relative to the inner diameter of the surfaces of the outer ring 36 and 37 is such that the rib 44 snaps resiliently into the groove 38 and the rib 39 snaps elastically. in the groove 43, so that, when the inner ring is pushed into the outer ring by axial displacement of the two rings, an interlocking connection is formed and ensures a cooperation by fitting of the wall 40 of the inner ring and the wall 32 This fitting provides permanent retention of the inner ring 33 in the outer ring 31, unless one or more of the clamping surfaces 36, 37, 41 and 42 are sufficiently deformed for mutual blocking to occur. The diameters of the outer surfaces of the inner ring 33 with respect to the diameters of the inner surfaces of the outer ring 31 are also selected so that there is sufficient space between them. facing surfaces for housing and sealing at least an extension 47 of the inner wall 10 of the pocket 9, around the inlet opening 48 Preferably, the space 20 delimited between the inner and outer surfaces The clamping arrangement is such that additional layers of material can also be clamped between the elastic bushings as will be described in more detail below. In view of the arrangement of the ribs and grooves, the friction surface ensuring the clamping of the wall of the pocket and other layers placed between the two rings can be increased by 30 to 40%

  beyond the corresponding smooth surface.

  A skin or comfort layer 14 formed of a porous material, for example a woven or nonwoven fibrous material, is preferably placed on the outer surface of the inner wall. The material chosen for this layer is very porous and gives a good comfort when it bears against the skin of the body An annular adhesive layer 45 is placed near the ring 30 and inside with respect to the layer 14 and is intended to stick to the The adhesive layer 45 is preferably formed of nonwoven fibers impregnated with a pressure-sensitive adhesive composition so that the adhesion is obtained by pressing the skin 30 so that it holds tightly and tightly the ring 30 in position around the stoma. The annular portions of the layer 45 placed radially beyond the support ring 30 preferably have a removable cover 46 of the material. plastic that prevents premature adhesion of layer 45 to

the body or another surface.

  The inner wall 10 of the pocket has an opening 48

  input whose diameter is preferably approximately equal to that of the opening 34 of the inner ring 33.

  The layer 14 and the adhesive layer 45 have corresponding openings 49 and 50 respectively. The opening 34 of the inner ring is aligned with the inlet opening 48 formed in the inner wall 10 of the pocket. layer 14 and the opening 50 of the layer 45 are likewise aligned with the inlet opening 48 When mounting the support ring and the other elements of the pocket 20 in the form of a one-piece structure, the inner ring 33 is first placed in the cavity 11 Then, the opening 32 of the outer ring 31 is aligned with the outer face 40 of the inner ring 33 and the two rings are pushed against each other with a force sufficient for the inner ring 33 to engage resiliently in the opening 32 of the outer ring 31, with portions of the inner wall 10, the layer 14 and the layer being sealed in the resulting fitting

  formed between the two elastic rings as is more clearly indicated in FIG. 4.

  The protective layer and the adhesive layer, the inner ring 33 and the outer ring 31 are preferably pushed into the cooperation position, the layers being clamped between the rings, before the apertures 35 are cut in these layers, so that the alignment the opening 34 of the ring 33 and the corresponding opening of the inner wall is facilitated. In other words, the inner ring 33 is pushed into the opening 32 of the outer ring 31 so that the clamping arrangement shown in Figure 4 is formed, while the wall

  and the layers 14 and 45 are formed of continuous sheets.

  In the next step, the tight layer portions 45, 14 and 10 placed above the opening 34 of the inner ring are cut by passing a punch or similar cutting member into the opening 34 , with training

  openings 50, 49 and 48 respectively.

  The connection of the walls 10 and 12 of the pocket 10 along the edge connection 15 can be provided before or after clamping the appropriate layers between the elastic rings, and before or after cutting the central openings 48, 49 and 50 after forming these aligned openings, an annular packing 54 of karaya gum or the like is placed on the inner surface of the support ring 30 to seal with the body The liner 54 preferably has a shoulder 56 around an opening

  central 57 which forms an inlet passage in the cavity 11.

  A shoulder 56 fits tightly into the opening 34 of the inner ring so that it maintains the liner 54 in position with its opening 57 in alignment with the opening 48 of the wall 10. The liner 54 absorbs moisture in the presence of perspiration and other humors forming a gelled joint around the stoma and it may be formed of other vegetable gums having similar properties such as gum tragacant A protective layer 60 formed of a thin film, preferably a transparent plastic material is placed against the inner surface of the liner 54 so that the sterility and cleanliness of the liner 54 and the inner cavity of the pouch are protected when the layer 60 is cut from an extruded sheet and is placed in position just after extrusion while still hot, it adheres firmly to the inner surface of the liner 54 but can then be easily removed afi n that the inlet 57 of the pocket is exposed when the bag is prepared

  to the placement of the stoma 55 in the entrance.

  The pocket portions according to the invention shown in exploded form in FIG. 3 are presented in the form shown in FIG. 4. In this embodiment, three layers are formed of different materials and are clamped between the inner and outer rings, namely the internal wall 10, the protective layer 14 and an adhesive tape 45 A particularly important feature of the invention is that each layer clamped between the elastic rings is folded tightly, first around the rib 39 and then in the other direction around the rib 44 The space between the rings 31 and 33 is such that the ribs 39 and 44 press these layers firmly into the grooves 43 and 38 respectively. This sinuous tightening structure significantly increases the contact surface 15 by friction between them. elastic rings and the layer or layers of material pressed together relative to the contact surface that would be obtained with the thickness of the rings Thus, the layer or layers clamped between the rings are held tightly in position not only because of the fitting of the ribs and grooves but also because of the large friction surface formed by abutment against the outer surface 40 of the inner ring 33 and against

  the inner surface 32 of the outer ring 31.

  The outer ring 31 has two openings 62 preferably located 180 to each other at the circumference of the support ring 30. Each support opening has a flange 63 for cooperating with a protruding tongue 65 carried by the head 66 of a fastener body 67 connected to a strap or belt 70 for supporting the ring, passing through an opening 68 of the end of the body 67 opposite the head 66 The strap 70 passes around the belt a person carrying the ostomy bag and support the pouch and associated members in position, in use while the stoma communicates with the cavity through the entrance 57 Although a simple strap is shown for illustrative purposes, multiple straps can also be used as described for example in

  the aforementioned U.S. Patent No. 2,684,675.

  Although the fixing member 67 can be placed towards the inside of the adhesive layer 45, this member preferably passes through an opening 72 formed in the adhesive layer so that the strap 70 can pass outside the adhesive layer 45 and in the protective layer 14 as indicated in FIGS. 3 and 4 When the adhesive layer 45 is formed of a thin nonwoven material, advantageously, the head 66 of the fastener can be easily forced into the opening 62, with a small portion of the layer 45 and without a pre-formed aperture 72 being required. When the layer 45 is formed of a woven material or other material which can not be easily pierced or driven into the opening 62 with the head 66, the opening 72 can be made so that it allows the introduction of the head 66 in the opening 62 after mounting the other elements of the pocket The passage of the head 66 to tra to the adhesive layer 45 allows the adhesive seal formed by the layer to be disposed all around the stoma without interruption by passage of the strap 70, this strap to pass otherwise between a portion of the adhesive layer and the

body 13.

  In view of the effect of moisture on karaya gum or the like, it is difficult to obtain a substantial adhesion between the liner 54 and the support ring. adhesion may not be important, additional adhesion to maintain the liner 54 in place during the initial assembly and positioning of the pocket is achieved with an extension 59 of

  the adhesive layer 35, directed radially inwards.

  The extension 59 is placed on the inner surface of the elastic inner ring 33 as shown in FIG. 4. Additional adhesion between the liner 54 and the ring 30 can also be ensured by the tacky state.

  the liner 54 when formed initially.

  This gluing feature is best preserved by wrapping the finished pouch so that its filling

  do not dry by excessive contact with air before use.

  In the remaining figures, the same element designations have been used for elements similar to those of FIGS. 3 and 4, although the embodiments of FIGS. 5 to 8 have different arrangements of these elements. FIG. 5, the adhesive layer and the protective layer 14 of this embodiment

  are formed of a material which can satisfactorily bond to the material of the outer ring 31.

  Thus, only the inner wall 10 of the pocket is clamped between the inner and outer rings 31 and 33 The adhesive layer 45 is fixed by bonding to an inner face 58 of an outer ring 31 and the protective layer 14 is fixed by gluing at an outer face 61 of the elastic outer ring 31 The layer 14 can also be fixed

  by sticking to the edge of the pocket 9 at the weld 15.

  When the bonding surface 61 between the layer 14 and the outer ring 31 is sufficient for the layer to remain in place, the attachment of the layer 14 to the weld 15 by heat sealing or other type of adhesion is possible. The adhesion can be obtained by any of the many means previously described, for example by heat sealing, by welding with a solvent or by means of a separate layer of an adhesive composition. Selection of a fibrous material for the layers 14 and 45 in this embodiment and a heat sealable material for the resilient outer ring 31 can facilitate the attachment of the layers 14 and 45 to this ring since the melt material of the ring flows into the pores and around the fibers of the woven or nonwoven layers 14 and 45 This embodiment substantially increases the adhesion surface 59 between

the layer 45 and the liner 54.

  As shown in FIG. 6, only the adhesive layer 45 is clamped between the inner and outer rings 33 and 31. This structure can be used when there may be some difficulties in attaching the adhesive layer to the support ring, but relatively good adhesion can be obtained between the inner wall of the pocket and the outer surface 74 of the inner ring 33 In this embodiment, the inner wall 10 can be fixed by gluing to the adhesive layer 45 by heat sealing or by adhesion of another type as indicated by the broken line 77, so that an annular part

  internal of the adhesive layer 45 forms an extension 47 of the wall 10 which is thus held by clamping.

  As shown in FIG. 7, the adhesive layer and the protective layer 14 are both clamped between the inner and outer elastic rings 33 and 31. The adhesive layer 45 is also bonded to the outer face 64 of the outer ring. The inner wall 10 is adhesively bonded to the layer 14, along the weld and along an inner annular bonding zone represented by the broken line 79, although the inner wall can also be glued to an outer face. of the inner ring 33, it is not glued in this way in this embodiment but stops at an inner edge 80 'of the adhesion zone 79. This structure can be used when a relatively good adhesion is achieved. obtained between the adhesive layer and the support ring and between the inner wall of the pocket and the protective layer, but only a relatively weak adhesion can be obtained between the inner wall of the pocket and the support ring 30. selecting a fibrous material for layer 14 of this embodiment and a heat-sealable material for the walls of the pocket can facilitate the attachment of layer 14 to wall 10 since the melt of the wall flows into the pores and around the fibers in the woven or non-woven layer 14, in the regions of the

welds 15 and 79.

  Referring now to FIG. 8, which indicates that the protective layer 14 and the inner wall 10 of the pocket are both clamped between the inner and outer rings 31 and 33 The adhesive layer 45 is glued to the outer face 74 of In a variant, the internal portions of the wall 10 and of the layer 14 around the openings 48 and 49 respectively can also be glued to an inner face 82 of the inner ring 83. This structure can be used when an adhesion A relatively good adhesion between the adhesive layer and the support ring can be obtained when only a relatively poor adhesion can be obtained between the protective layer and the support ring, between the inner wall of the pocket and the backing ring. support and between the protective layer and the inner wall of the pocket. In this embodiment, the outer edge 84 of the protective layer is not adhered to the weld 15 of the pocket but is held in position both with respect to the inner wall of the pocket and the support ring. by the clamping connection provided by the clamping surfaces 32 and 40 of the rings 31 and 33 respectively An inner annular extension 85 of the porous protective layer 14 may be impregnated with an adhesive composition similar to that of the layer 45 so that the adhesion between the liner 54 and the support ring 30 is improved. The invention thus relates to various constructions allowing the inexpensive realization of Ostomy bags which are extremely effective and very comfortable in use. The realization of each of the elements of the pocket is such that the mass production of the pockets is facilitated. The particular attachment of the layers and the other elements can be chosen according to the particular nature of the materials chosen for the various elements and according to the effectiveness of the known techniques of bonding these materials to each other. conventional machines that are available for mounting bushings

  force-fed and, in this way, manufacturing costs can be further reduced to a minimum.

  Of course, various modifications may be made by those skilled in the art to the devices that have just been described as non-limiting examples without departing from the scope of the invention.

Claims (13)

  1 pocket adapted to be supported by the body of a person and intended to receive the materials discharged by an ostomy, said pouch comprising an inner wall (10, 14) and an outer wall (12) placed opposite one another; the other, the edges of the inner and outer walls being connected so that the walls delimit a cavity (11) for receiving the discharged materials, the inner wall having an inlet opening (57) for accommodating the stoma 10 so that the it communicates with the cavity of the pocket, and a layer of an adhesive tape (45) for supporting the pocket on the body, the stoma communicating with the pocket cavity, characterized in that the pocket comprises a ring of support (30) having an inner elastic ring (33) defining an outer clamping surface and an outer elastic ring (31) having an inner clamping surface, an extension of the inner wall (10, 14) of the pocket and the diaper tape (45) being attached to the support ring (30), the extension of the inner wall (10, 14), the adhesive tape (45) or wall and strip being clamped between the clamping surfaces of the inner elastic rings (33) and outer (31), and the inner (33) and outer (31) elastic rings comprise cooperating devices (36, 37, 41, 42) which mutually cooperate by providing locking when the inner ring (33) ) is in the clamping position in the opening of the outer ring (31), so that the cooperation devices of the rings (31, 33) are force-fitted, the bag formed being   of the type intended to be discarded after use.   2 pocket according to claim 1, characterized in that the extension of the wall of the pocket has a continuous portion of the inner wall (10) of the pocket, and the adhesive layer (45) is compressed by compression between   the inner (33) and outer (31) elastic rings along the continuous portion of the inner wall (10).   3 pocket according to claim 1, characterized in that the adhesive layer (45) is fixed to the support ring (33) by gluing, and in that the extension of the inner wall (10) of the pocket forming a continuous portion of the wall is clamped between the elastic rings internal (33) and external (31).   4 pocket according to claim 1, characterized in that the extension of the inner wall (10) of the pocket forming a continuous portion of the wall is fixed to the support ring (30) by gluing, and the adhesive layer   (45) is clamped between the inner (33) and outer (31) elastic rings.   Pocket according to claim 1, characterized in that the inner wall (10) comprises a protective layer (14) formed of a porous material covering at least a portion of the outer surface of the inner wall (10) of the pocket, the protective layer being disposed so that it bears against the body when the support ring (30) is supported on the body while the   stoma communicates with the pocket cavity (11).   Pocket according to one of claims 4 and   5, characterized in that the protective layer (14) is   fixed to the support ring (30) by gluing.   Pocket according to one of claims 1 and 5,   characterized in that the extension of the wall of the pocket is a continuous portion of the inner wall (10) of the pocket, and the protective layer (14) is compressed by compression between the inner (33) and outer (31) elastic rings. ) along the continuous part of the inner wall (10) of the pocket.   Pocket according to one of claims 1 and 5, characterized in that the protective layer (14) and the   adhesive layer (45) is compressed by compression between the inner (33) and outer (31) elastic rings   the extension of the inner wall (10) of the pocket.   9 pocket according to one of claims 1 and 4, characterized in that the inner wall (10) of the pocket   is adhesively bonded to the adhesive layer (45) so that a portion of the adhesive layer (45) forms the extension of the inner wall (10) of the tight pocket between the rings   resilient inner (33) and outer (31).   Pocket according to one of claims 1 and 5,   characterized in that the protective layer (14) is adhesively bonded to the inner wall (10) of the pocket so that a portion of the protective layer (14) forms the extension of the inner wall (10) of the pocket tight between   the inner (33) and outer (31) elastic rings.   11 pocket according to one of claims 1 and 5, characterized in that the extension of the inner wall   (10) of the bag is a continuous part of the inner wall of the bag, and the adhesive layer (45) and the protective layer (14) are both attached to the support ring (30) by adhesion.   Pocket according to claim 1, characterized in that a lining (54) of a moisture-absorbing rubber is carried by the support ring (30) to cooperate sealingly with an adjacent body surface.   the stoma when exposed to moods.   Pouch according to claim 12, characterized in that the packing (54) has an annular shape, and the packing (54) has an axially disposed shoulder (56) penetrating into an inlet opening formed in the ring   internal elastic (33) to provide radial support 25 of the gum layer.   Pocket according to claim 1, characterized in that the inner clamping surface of the outer elastic ring (31) has a first engagement device and the outer clamping surface of the inner elastic ring (33) has a second engagement device. the first and the second co-operating means each having a rib adjacent to a groove, the combination of a rib and a groove being formed by a first conical surface radially offset from a second conical surface; the inner surface being in cooperation with the rib of the outer surface and the rib of the inner surface being in cooperation with the groove of the outer surface so that the interlocking of the rings   internal and external elastics is ensured.   Pocket according to claim 1, characterized in that the outer elastic ring has two openings (62) placed opposite one another and intended for the passage of two fastening members (67) each placed at one end of a strap (70) intended to cooperate with a part of the body so that it is supported, a flange (63) formed in each of the openings (62), and a tongue (65) carried by each of the fasteners, the tongue   fasteners cooperating with the rim of the opening when the head of the fastener is housed in the opening so that the fasteners are retained in the openings and retain the support ring (30) on The strap (70).   Pocket according to claim 1, characterized in that the adhesive tape layer (45) is an adhesive inner surface disposed radially beyond an outer edge of the support ring (30) so that it cooperates by gluing with a body surface adjacent to the stoma, and that the inner adhesive surface is pressure sensitive and is covered with a non-adhesive layer attached to the adhesive layer but which can be removed therefrom   by peeling before contact between a surface of the body and the adhesive surface.