RU2220685C1 - Container unit for collecting exudate from stoma - Google Patents

Abstract

FIELD: medical engineering. SUBSTANCE: device has internal and external sack and a unit for making multiple opening and closing. The unit has incision, lock and valve. The lock is designed as mechanical composition of sack members Zip-lock closure type valve, adhesive connection of members or combination of adhesive and mechanical connection. EFFECT: multiple usage; easy in use and recoverable small cost device. 3 cl, 7 dwg

Description

 The invention relates to medicine, namely to receivers for collecting secretions from patients with stoma.

 Many designs of colo-and ileostomy devices are known, consisting of a disposable discharge bag that is attached to the patient’s skin around the stoma using adhesive or special fixing or connecting devices. Many known bag designs contain various types of filters for deodorizing exhaust gases. Bags are made of expensive materials that do not allow gases and liquids, most often from multilayer polymer films.

 In recent years, environmental requirements for new products have risen sharply, so designs of colo- and ileostomy bags that can be easily disposed of, for example, drained into the sewers, began to be created.

 In the application EP 0815812 (A 61 F 5/445, publ. 07.01.98) describes the design of the bag, lowered into the sewer. For the convenience of removing the contents of the bag, it is equipped with an easily removable V-shaped lobe or a vertical narrow strip. However, this design is not hygienic enough, because when the petal or strip is torn, intestinal waste may partially get on the skin or clothing.

 In the application WO 94/12128 (A 61 F 5/44, publ. 06/09/94) a hygienic system of a drainage bag consisting of 2 containers was proposed. The inner liner bag is made of a two-layer material, which allows it to remain impermeable for a short period of time and completely degrade in water for 5 days, which is ideal for bags that are drained into the sewer. The outer bag is made of water- and gas-tight material. The design provides for easy separation of the outer bag from the inner bag-liner after filling it. The outer clean bag is disposed of with household waste.

 Significant disadvantages of this design are the use of expensive materials and the inability to reuse the outer bag.

 Subsequently, the internal biodegradable liner bag, which is part of a system of 2 bags, was improved (WO 96/01090, publ. 18.01.96). However, the specified invention has the same disadvantages as described above, the inner bag is made of expensive material; access to the inner liner is limited and replacement is inconvenient.

 Closest to the proposed invention is a device for collecting secretions from a stoma (WO 95/35076, A 61 F 5/445, publ. 12/28/95), consisting of 2 bags. The removable inner liner bag can be used with some accepted colo- and ileostomy outer bags. The inner liner bag, which is removed as it is filled, is made of polyethylene, and the expensive gas-tight outer bag can be used for a week or more, which significantly reduces the cost of using this system. However, installation and removal of the inner liner bag through the flange and the small inner hole of the conventional colostomy bag is difficult. Replacing the inner bag is carried out only when removing the conventional bag, mounted on an adhesive plate with a flange on the patient’s body, which is inconvenient and introduces additional load on the adhesive joint.

 The present invention is the creation of an inexpensive reusable receiver for collecting secretions from the stoma, capable of easy disposal and easy to use.

 This is achieved by the fact that the proposed receiver consists of two bags: an internal (replaceable) bag and an external gas-tight bag. A distinctive feature of the receiver is that the external bag has a device for repeated opening and closing. The device includes a cut, for example, U-shaped or in the form of an O-shaped hole on the outer side of the outer bag, a valve and a locking device located around the perimeter of the cut and hermetically connecting the bag to the valve. The dimensions of the cut are such that with the open locking device, the inner bag is placed inside the outer bag without deformation of the fastener and there is free access to any place of attachment.

The locking device consists of two parts, one of which is attached to the bag along the perimeter of the cut, and the second part to the valve. The device can be made in three versions:
- in the form of adhesive bonding of bag and valve elements;
- in the form of a mechanical connection of elements of the type "Zip-lock"shutter;
- in the form of combinations of mechanical and adhesive compounds.

 The first option is the simplest and cheapest. It is preferred for bedridden patients. The second and third options for a more durable and tight connection are preferred for patients leading an active lifestyle. The locking device is not located directly on the patient’s body, therefore its rigidity does not create discomfort, and it itself does not experience power loads during body movements.

 The external bag takes up all the power load. It is made of a durable gas-tight material, such as polyvinylidene chloride or a combination of PVDC with other materials. The bag is attached to the patient’s body by means of a plate made on the basis of a hydrocolloid adhesive.

 The inner bag serves as a container for collecting secretions from the stoma. On one side of the bag there is an opening equal to the maximum size of the stoma for a given size of the device. Around the hole is a ring, on the outside of which there is an adhesive layer, through which the inner bag is attached to the outer bag. The shape and dimensions of the bag are made in such a way that when it is filled with secretions from the stoma, the external bag takes up the entire weight load. The inner bag is made of thin-walled inexpensive material, such as polyethylene or water-soluble polymer material, the bags from which are disposed of by flushing into the sewer.

 The outer and inner bags can be equipped with any of the known devices for the exit and purification of gases released from the stoma.

 The receiver for collecting discharge from the stoma is used as follows.

 In the outer bag, from the side of the flange with hydrocolloid adhesive, a hole is cut corresponding to the stoma of a particular patient. Paper with release coating is removed from the adhesive, the external bag is attached to the patient’s body. The locking device opens, and then the valve, while the internal cavity of the bag becomes accessible.

 The inner bag is taken from the set of interchangeable bags. Paper with a release coating is removed from the adhesive ring located around the hole, similar to an outer bag.

 The inner bag through a technological cut in the outer bag is placed in the cavity of the outer bag and glued to it with a concentric opening. The size of the hole in the outer bag is larger than the size of the adhesive ring of the inner bag, so the entire surface of the ring is accessible and good adhesion is ensured.

 The inner bag is replaced daily or as it is filled, and the outer bag can be used repeatedly and changed only 1 time per week.

The design of the proposed receiver is presented in the figures:
- Figure 1 - General view of the receiver.

 - Figure 2 is a General view of the receiver with a U-shaped technological section.

 - Figure 3 is a transverse section along the line aa (figure 1).

 - FIG. 4 - fastening of the inner bag to the outer bag (region B in figure 3).

 - FIG. 5 is a variant of the adhesive connection of the outer bag to the valve (region B in FIG. 3).

 - FIG. 6 is an embodiment of a mechanical connection of an external bag with a valve, for example a “Zip-lock” shutter

 - Fig.7 is a variant of the connection of the valve with the outer wall of the outer bag in the form of a combination of mechanical and adhesive joints.

 According to the drawings, the receiver for collecting ostomy secretions consists of an external bag 1 and an internal bag 3. The external bag on the outside (the side opposite the flange connection) has an O- or U-shaped incision (FIGS. 1 and 2, respectively) that closes valve 2.

 The inner bag 3 is attached to the outer bag 1 by adhesive 5, which is applied to the substrate material 4, rigidly fastened by welding with the inner bag 3. Opposite the fastening of the inner bag, on the outside of the outer bag, a flange is welded consisting of the substrate material 4 and the hydrocolloid adhesive 6. The described structure can be seen in figure 4.

 On the outer wall of the outer bag 1 around the cut (hole) there is a locking device, three versions of which are shown in Figs. 5, 6, 7. For the adhesive version, it consists of a substrate material 4, welded to the wall of the bag 1, and an adhesive layer 5, through which the valve 2 is attached (Fig. 5). The mechanical connection of the outer bag to the valve is shown in FIG. 6, where one part of the lock 7 "mother" is attached to the wall of the outer bag, and the counterpart 8 "father" is attached to the valve. The third version of the locking device is illustrated in Fig.7, where, in addition to the mechanical lock, there is an adhesive joint in the form of two layers of adhesive 5 and the substrate material 4.

 The proposed reusable receiver for collecting stoma secretions allows the use of expensive conventional outdoor bags of gas-tight material for a week or more, which leads to significant savings for patients. After use, the bags are easy to dispose of.

 Compared with the known construction, the presence on the outer bag of a device for multiple opening and closing in the form of a technological cut, valve and lock allows for simple, convenient replacement of the inner liner without removing the outer bag, which makes the process of using this receiver more comfortable and avoiding additional injury stomas and skin of the patient.

 This technical solution can be used in medicine for the production of colo- and ileostomy receivers.

Claims (3)

1. A reusable receiver for collecting ostomy secretions, consisting of an external bag equipped with a flange for attaching to the patient’s body, and a single-use internal bag for ostomy, characterized in that there is a device for repeated opening and closing on the wall of the external bag opposite the flange. 2. A reusable receiver for collecting discharge from the stoma according to claim 1, characterized in that the device for multiple opening and closing is made in the form of a cut, a locking device and a valve. 3. A reusable receiver for collecting ostomy secretions according to claims 1 and 2, characterized in that the locking device is a mechanical connection of the bag and valve elements of the “Zip-lock” type of the shutter, an adhesive connection of the elements, or a combination of mechanical and adhesive connections.

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