JPH0460659B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surgical waste bag of the type used in patients undergoing colostomy or ileostomy surgery. These bags are commonly referred to as ostomy bags and are used to contain waste material from a patient's surgical opening. Of course, gas generated in the stomach and intestines also enters the bag, so this type of bag is usually equipped with an exhaust system to allow the gas to escape. It is known to provide exhaust systems with filtration devices for removing unpleasant odors. For example, an ostomy bag with an evacuation device is described in British Patent No. 1,596,496.

The object of the invention is to provide a bag which is easily replaceable by the patient when necessary and which is provided with a filtration device which is sufficiently leak-tight.

In the present invention, the "filtering device" consists of a female pedestal and a male pedestal, and the filtration element is disposed within the recess of the male pedestal.

According to the invention, it has a wall made of two flexible materials fixed at its ends, an inlet suitable for communicating with the patient's surgical opening, and a filtration device that allows gas to pass from the inside to the outside. and an exhaust port is provided on one wall at a position remote from the inlet, and a female pedestal of the filtration device is fixed to the one wall and has a passage communicating with the exhaust port, and is separate from the female pedestal. The formed male pedestal of the filtration device is removably fitted into the female pedestal, and includes a tubular exhaust plug that can be engaged with the passageway of the female pedestal of the male pedestal, and the filtration device is disposed within the recess of the male pedestal. An ostomy bag is obtained in which the filtering element is effective in reducing the unpleasant odor of the gas passing through the filter.

The number of filtration elements is one or more, preferably two,
It can be constructed from filtration element members.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.

The ostomy bag illustrated in FIGS. 1 and 2 is primarily intended for use by patients who have undergone ileostomy surgery. The bag consists of two walls 1 and 2 of two flexible sheets of plastic material which are joined together at their ends. When using a bag, wall 1 is the back wall of the bag that is intended to be closest to the patient's body. Back wall 1
has an inlet 3A intended to communicate with the patient's surgical opening and an exhaust port 3 located near the apex of the bag at the top of the inlet 3A. A female base 4 made of thermoplastic material is fixed to the outside of the back wall 1 of the bag by means of a double-sided adhesive ring 5 or by welding. In the center of the female pedestal 4 is a passage 6 which overlaps the exhaust port 3 in the back wall 1 of the bag.

The female pedestal 4 is arranged to receive a male pedestal 7 made of a similar thermoplastic material. Male type pedestal 7
A tubular exhaust plug 8 is then fitted into the passage 6 of the female pedestal 4. The tubular exhaust plug 8 has an outwardly open lip 9 to help keep the tubular exhaust plug 8 out of the passageway of the female die seat 4.

There is a recess 10 in front of the male pedestal 7 that communicates with the tubular exhaust plug, and an annular rib 1 at its base.
1 can be provided. Filtration element member 1
The second filtration element member 12A is held in position by an overlapping adhesive ring 13. The opening 14 in the adhesive ring is aligned with the tubular exhaust plug 8.

In the example shown in FIGS. 3 and 4, the male pedestal has an aperture 16 in place of the adhesive ring 13 to keep the filter element members 12, 12A in the correct position.
A lid 15 is provided. In this example, male pedestal 7
An inwardly curved lip 17 is provided at the base of the lid 15. When the lid 15 is fitted onto the base 18 of the male pedestal 7, the lip 17 is attached to the shoulder 19 of the base 18.
The exhaust plug 8 has a tubular opening 16 that engages with the lower side of the exhaust plug 8.
Hold the lid in a position where it is centered. An annular rib 11a is provided on the inner surface of the lid and contacts the filter element member 12A. In either case, the filtration element can be made of activated carbon cloth or of a fibrous material impregnated with activated carbon. Filtration elements can also be made by the method described in US Pat. No. 2,076,689A.

The said special specification includes a filtration layer of activated carbon cloth through which gas can pass from the interior of the bag, a first layer of a breathable thermoplastic material in contact with one side of the filtration layer, and one side of which is a first layer. a barrier layer of a breathable hydrophobic material in contact with the layer of the barrier layer and a second layer of breathable thermoplastic material in contact with the other side of the barrier layer. A filtration device for a surgical drainage bag is described.

As mentioned above, the filtration element is desirably composed of two filtration element members, but in some cases, a single filtration element member 12 or three or more filtration element members may be used.

When the bag is in use, the waste gas inside the bag is exhausted through the exhaust port 3 and the annular exhaust plug through the filter element. The annular ribs 11 and 11a counteract the tendency of the gas to escape from the periphery of the filtration element members 12 and 12A, so that the gas is properly discharged through the filtration element.

If desired, the male pedestal 7 can be removed by the patient. For example, in the case of a bag that can be drained, the contents of the bag can easily flow out through the exhaust port 3 and the passage 6 that are exposed when the base 7 is removed. Furthermore, if you want to ensure the safety of the patient, such as when sleeping, the male pedestal 7 can be used.
can be removed and a blind plug assembly or adhesive plate used instead.

In the above example, the exhaust port 3 is described as being provided on the back wall 1 of the bag, but depending on the case, it may be provided on the front wall 2.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of the ostomy bag of the present invention. FIG. 2 is a partial sectional view showing an example of the ostomy bag of the present invention, showing the relationship between the female pedestal and the male pedestal. FIG. 3 is a partial sectional view showing a male pedestal different from that shown in FIG. 2. FIG. 4 is a plan view of a portion forming the male pedestal in FIG. 3. In the diagram, 1, 2...Bag wall, 3...Exhaust port,
3A...Inlet, 4...Female pedestal, 5...Double-sided adhesive ring, 7...Male pedestal, 8...Tubular exhaust plug, 10...Indentation, 11, 11a...Annular rib, 12, 12A ...filtration element member, 1
3...adhesive ring, 15...lid.

Claims (1)

[Claims] 1. A wall made of two flexible materials fixed at their ends, an inlet suitable for communication with a surgical opening of a patient, and a filtration device capable of passing gas from the inside to the outside. an exhaust port is provided on one wall at a position remote from the inlet, and a female pedestal of the filtration device is fixed to the one wall and has a passage communicating with the exhaust port,
A male pedestal of the filtration device formed separately from the female pedestal is removably fitted into the female pedestal,
The male pedestal includes a tubular exhaust plug engageable with the passageway of the female pedestal, and a filtration element is disposed within the recess of the male pedestal, the filtration element reducing unpleasant odors of the gas passing through the filtration device. Ostomy bugs are effective for patients. 2. A bag according to claim 1, wherein the male seat is made of thermoplastic material and the filter element is held in the recess by a lid fitted onto the male seat. 3. A bag according to claim 1, wherein the male base is made of thermoplastic material and the filtration element is held by an adhesive ring fixed to the male base. 4. A bag according to any one of claims 1 to 3, wherein an annular rib is provided at the base of the recess of the male pedestal to obstruct the tendency of gas to deviate from the peripheral edge of the filtration element. 5. The bag according to claim 2 or 4, wherein the inner surface of the lid fitted onto the male base is provided with an annular rib that prevents the tendency of gas to escape from the peripheral edge of the filter element.