JPH024363A - Urine bag - Google Patents

Abstract

PURPOSE:To completely prevent the pressure increase in the bladder, the contamination with bacteria, etc., by the backflow urine and the pressure drop in the bladder by the urine in the urethra tube by providing a check valve consisting of a resilient 1st sheet which has the open port of a small chamber and a mouth part of approximately the same shape as the shape of said port and is sealed with the edge of the mouth part to the peripheral edge of the open port and the resilient 2nd sheet sealed to each other to the peripheral edge thereof exclusive of the bottom end thereof. CONSTITUTION:To urine bag 1 consists of a bag body 2, the small chamber 3 provided to the upper part of the bag body 2 and the check valve 4 provided to the open port 13 positioned to the side surface of the small chamber 3. This check valve 4 consists of the 1st sheet 15 and 2nd sheet 16 having a rectangular shape and consisting of a resilient material and the sheets 15 and 16 are sealed at the peripheral edge exclusive of the open ports 15a and 16a. The sheet 15 is bored with the tongue-shaped mouth part 15b having approximately the same shape as the shape of the open port 13 and the edge of the mouth part 15b is sealed to the peripheral edge of the open port 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a urine bag used for patients with urinary disorders.

[Prior art] Patients with urinary disorders, such as patients with ureteral skin thinning, artificial bladder ulcers, or patients with urinary incontinence, are completely dependent on the help of others, or the patients themselves are constantly in an uncomfortable state. It is desirable to ensure that activities within a certain range are not hindered.

For this reason, urine collection containers are used for patients such as those described above. Conventionally, various types of urine collection containers have been used, but all urine collection containers have internal
For example, for receiving urine guided by a catheter or an external type urinary conduit. Flexible urine bags have come to be used as urine collection containers instead of rigid containers due to patient activity. However, when a flexible urine bag is subjected to external pressure due to various factors, the urine inside the bag flows backwards, which can be harmful to the patient. The following are known:

■Special Publication No. 56-501035, Utility Model Publication No. 57-10
A check valve is provided in the urinary conduit to prevent the urine in the urine bag from flowing back into the patient, which is known in Japanese Patent Application Laid-open No. 139295/1982, Japanese Utility Model Publication No. 58/1983.
-25105, Japanese Utility Model Publication No. 61-147738 1 A check valve is provided between the urine conduit and the urine bag, which is known in Japanese Utility Model Publication No. 53-14072 by the applicant. A device that prevents urine from flowing back into the patient, ■Japanese Patent Publication No. 1983-109, Japanese Patent Application Laid-open No. 48-1539
A check valve is provided between the urinary duct and the urine bag, which is known in Publication No. 1, etc., and prevents negative pressure inside the urinary duct due to continuous flow of urine into the urinary duct. equipment that is equipped to do so.

[Problem to be Solved by the Invention 1] The urine bag described in (1) simply has a check valve in the urinary conduit to prevent the backflow of urine, so if external pressure is applied to the urine bag while urine is flowing in, Since there is some time lag between the backflow of urine in the urine bag and the time it reaches the check valve, the check valve operates during that time and can prevent the backflow of urine.

However, if the time lag for the check valve to completely close is longer than the time lag for urine to reach the check valve, it is not possible to prevent some urine from flowing backwards.
Furthermore, it is not possible to completely prevent damage to the bladder due to increased pressure within the patient's bladder and contamination of the urethra, bladder, etc. by bacteria derived from refluxed urine. In addition, the bag (2) cannot effectively act against the negative pressure caused by the continuous flow of urine through the urinary conduit, which places a burden on the patient's bladder.

For the same reason as the case of the urine bag mentioned above, the urine bag ③ is caused by damage to the bladder due to increased and decreased pressure (negative pressure) in the patient's bladder, refluxed urine, or continuous flow of urine. It is not possible to completely prevent contamination from bacteria, etc., and in addition, compared to the urine bag (■), the time lag between the urine in the urine bag flowing backwards and reaching the check valve is There is a risk that more urine will flow backwards.

The urine bag disclosed in Japanese Patent Publication No. 61-109 is equipped with a check valve and a negative pressure prevention device in the urinary conduit, and the bladder, etc. It is possible to completely prevent contamination such as bacteria from damage, refluxed urine or continuous flowing urine. However, with the structure of the check valve described above, the thin, freely flexible sheet-shaped butterfly-shaped valve may become bent or wrinkled over a long period of time against the smooth surface of the inlet hole that communicates with the inside of the urine bag. Furthermore, the urine bag disclosed in Japanese Patent Application Laid-open No. 15391/1983 is used to collect urine from a patient, and it is difficult to expect a backflow prevention effect over the period of time. , having a check valve that guides urine in only one direction from the tube to the collection container, and a device that prevents continuous formation of urine in the tube. According to this urine bag, pressure increases and decreases in the patient's bladder (
It is possible to completely prevent damage to the bladder, etc. due to negative pressure (negative pressure), and contamination with bacteria, etc. due to refluxed or continuously flowing urine. However, the structure of the check valve and the structure of the device for preventing continuous urinary column formation are not necessarily clear in this publication, but when describing an example, both are housed in a collection container. Due to the structure of this urine bag, the column formation prevention device must be installed vertically above the inverse ratio valve. Therefore, in order to ensure the substantial capacity of the collection container, the column formation prevention device is There are restrictions on the size of If the size of this chamber is not large enough, the function to prevent urine formation will be insufficient, and the function as a cushion tank for urine backflow caused by the time lag when the check valve is closed will also be insufficient. There is a possibility that it will become. or,
A check valve is made by stacking two thin, highly flexible sheets and joining them together except for one part of the periphery, so for example, if a urine bag is installed, these sheets may sag and become reversed. There is a risk of losing its function as a stop valve. Therefore, this check valve needs to be supported by a rigid plate, and the overall structure tends to become complicated.

The present invention has been made in view of the above circumstances, and is aimed at preventing an increase in the pressure inside the patient's bladder due to external pressure, etc., contamination with bacteria due to refluxed urine, and contamination of the patient's bladder due to urine continuously flowing through the urinary duct. It is an object of the present invention to provide a urine bag which can completely prevent pressure drop (negative pressure) and contamination with bacteria, etc., and which has a simple structure and is easy to manufacture.

[Means for Solving the Problems 1] In order to solve the above problems, the urine bag of the present invention includes a bag body having a uric acid capacity portion surrounded by a flexible sheet, and a bag body provided at an upper part of the bag body. a small chamber formed of a hard material, provided with a urine drainage port, located on the uric acid storage section side and having an open port on the side; a first flexible sheet sealed to the periphery of the mouth, and a second flexible sheet sealed to each other except for the lower end around the periphery of the first sheet;
and a check valve consisting of a sheet, and when urine flows from the urine drainage port, the urine passes through the small chamber and separates the first sheet and the second sheet, so that there is a gap between the two. The uric acid flows into the uric acid storage part through the opening formed in the uric acid storage part.

When urine does not flow through the urine drainage port, the first sheet and the second sheet are in close contact with each other, so that the urine that has once entered the urine storage section does not flow back into the small chamber. It is.

[Function 1] According to the urine bag having the above configuration, the urine flowing from the urinary port of the small chamber connected to the urinary duct first enters the small chamber with a larger diameter than the urinary port and becomes a dripping state. , the pressure drop (negative pressure) is alleviated without continuation of the urine already accumulated in the urine storage chamber, and the second seat of the check valve is pushed outward via the opening located on the side of the chamber. The first site is also pushed outward, separating them and forming an opening, which flows into the uric acid reservoir. Also, when external pressure is applied to the uric acid storage area, the urine that has accumulated in the uric acid storage area tries to flow backwards, but the external pressure causes the first seat and the second seat of the check valve to come into close contact with each other, causing the urine to flow back into the small chamber. This prevents reflux and blocks pressure build-up in the patient's bladder due to external pressure. The small chamber alleviates the backflow of urine and the rise in pressure caused by the time lag when the check valve is closed.

[Example 1 Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a partially cutaway front view of the urine bag of the present invention, Fig. 2 is a sectional view taken along line II-II in Fig. 1, and Fig. 3 is a partially cutaway perspective view of the check valve. , ■ indicates a urine bag, and the urine bag l includes a bag body 2 and a bag body 2.
It consists of a small chamber 3 provided in the upper part of the chamber 3, and a check valve 4 provided on the side surface of the small chamber 3.

The bag body 2 is formed by adhering the respective peripheral edges of a flexible front sheet 5 and a flexible back sheet 6 with heat fusion or adhesive, and forming a uric acid storage portion 7 inside. The material of the flexible front and back sheets 5 and 6 constituting the bag body 2 is a soft plastic sheet with a thickness of about 0.2 to 0.4 mm, such as soft polyvinyl chloride, polyethylene, polyethylene/nylon laminate, ethylene Vinyl acetate (EVA) or a rubber sheet with a thickness of about 2 mm is used.

The small chamber 3 made of a rigid hard material is provided in the upper part of the bag body 2. That is, a tongue-shaped hole 5a is made in the upper part of the top sheet 5 of the bag body 2, and the adhesive piece 3a of the small chamber 3 is attached to the periphery of the hole 5a on the urine storage part 7 side by heat fusion or adhesive. By joining, the small chamber 3 is provided.

This small chamber 3 is provided with a urine drainage port 8 and an air vent 9 at the top, a urine drainage tube 10 is connected to the urine drainage port 8, a filter 11 is packed in the air vent 9, and a filter 11 is packed in the air vent 9. is covered with a cap 12. This small chamber 3 has an open opening 1 on the side surface located on the uric acid capacity section 7 side.
3, and the bottom surface 3b of the small chamber 3 is inclined toward the opening 13 side. The rigid material constituting the small chamber 3 may be hard polyvinyl chloride, polypropylene, polycarbonate, ABS##4 resin, or the like.

An open mouth located on the side of the small chamber 3! 3 is provided with a check valve 4. This check valve 4 consists of a first seat 15 and a second seat 1G, both of which have a rectangular shape and are made of a flexible material.
5 and 16 are sealed at their peripheral edges except for the lower ends 15a and 16a, respectively. This first sheet 15 has a tongue-shaped mouth portion 15b having approximately the same shape as the open mouth 13.
is bored, and the edge of this opening 15b is sealed to the periphery of the open opening 13. Therefore, this check valve 4 normally has a cylinder 1.
The lower end 15a of the second seat 15 and the lower end 16a of the second seat 16 are kept closed, and fluid such as urine substantially flows into the check valve 4 from the uric acid storage section 7 side. to prevent Furthermore, when fluid such as urine flows into the small chamber 3, the lower end 15a of the first seat 15 and the lower end 16a of the second seat 16 are separated, and the fluid such as urine is removed. can flow out into the uric acid storage section 7.

In addition, 17 in FIGS. 1 and 2 indicates the urine outlet, which is normally closed by a drain valve, etc., and the uric acid capacity part 7
When a predetermined amount of urine has accumulated, these drain valves, etc. are opened to drain the urine.

Next, the state of use of the urine bag having the above structure will be described.

First, the urine bag 1 is placed at a predetermined location, for example, on the patient's body, on the bedside, or the like. The urine guided by the internal or external type urinary conduit IO then flows into the chamber 3 through the urinary opening 8.

This small chamber 3 is sufficiently large compared to the inside of the urinary conduit IO and has a predetermined capacity, so when urine flows into the small chamber 3 from the urine drainage port 8, the urine does not flow continuously but in a dripping state. It flows to the bottom surface 3b. Since this bottom surface 3a is inclined toward the opening 13 side, the urine is also applied with velocity pressure to the second seat 1 of the check valve 4.
6 outward, and also push the first sheet 15 outward,
An opening is formed by separating these two parts, and the uric acid flows into the uric acid storage part 7. That is, in the check valve 4, the lower end 15a of the first seat 15 and the lower end 16a of the second seat 16 are easily separated from each other against the flow of fluid such as urine from the small chamber 3 due to the head pressure. Since it is open, fluid such as urine in the small chamber 3 can easily flow into the uric acid storage section 7.

Further, if external pressure is applied to the urine stored in the uric acid capacity section 7 for some reason, the urine tries to flow back into the small chamber 3, but as mentioned above, when the urine does not flow from the small chamber 3, Since the check valve 4 is closed, urine does not flow back into the small chamber 3.
Furthermore, when urine is flowing into the uric acid capacity part 7 from the small chamber 3 and external pressure is applied to the urine accumulated in the uric acid capacity part 7, the increase in pressure is not transmitted to the patient's bladder, etc., and the urine flows into the small chamber 3. Although the flow tries to flow backwards, the lower end 15a of the first seat 15 of the check valve 4
and the lower end 16a of the second sheet 16 are in close contact with each other, so that urine does not flow backward into the small chamber 3, and furthermore, pressure rise to the patient's bladder etc. is blocked, and when the check valve 4 is closed, Due to the time lag, there is a possibility that urine may flow back a little or the pressure may rise, but the small chamber 3 with sufficient capacity alleviates this and substantially prevents bacterial contamination due to refluxed urine and pressure rise in the patient's bladder. It can be prevented.

[Advantageous Effects of the Invention 1] As detailed above, the urine bag of the present invention includes a bag body having a uric acid capacity portion surrounded by a flexible sheet, and a bag body made of a hard material located at the upper part of the bag body. a small chamber which is formed and has a urine drainage port and is located on the side of the uric acid storage portion and has an opening on the side, and has an opening having substantially the same shape as the opening of the small chamber and is located at the periphery of the opening. A check valve comprising a flexible first sheet sealed at the edge of the mouth portion and a flexible second sheet sealed to each other at the peripheral edge of the first sheet except for the lower end. Urine that flows from the urinary opening in the small chamber enters the small chamber with a larger diameter than the urinary opening, so it drips, and the urine does not flow into the urine that has already accumulated in the uric acid capacity, causing a pressure drop (negative pressure). ) is also relaxed, and the second seat of the check valve is pushed outward via the opening located on the side of the chamber, and the first seat is also pushed outward, separating them and forming an opening. and flows into the original plate container. In addition, once external pressure is applied to the urine stored in the original plate container, it tries to flow back, but the first seat and second seat of the check valve are in close contact with each other, preventing it from flowing back into the chamber. It also blocks the increase in pressure within the patient's bladder. The small chamber alleviates the backflow of urine and the rise in pressure caused by the time lag when the check valve is closed.

Therefore, damage due to increased pressure in the patient's bladder due to external pressure, etc., contamination with bacteria etc. due to urine flowing backwards, damage due to decrease in pressure (negative pressure) in the patient's bladder due to urine continuously flowing in the urinary duct, damage etc. contamination can be completely prevented.

In addition, since the check valve is installed on the side of the small chamber, it is possible to sufficiently increase the capacity of the small chamber, and it is possible to substantially prevent both urine backflow and pressure increase due to the time lag when the check valve is closed. It becomes possible, there is no need to support the sagging phenomenon of the check valve, the structure is simplified, and it is easy to manufacture.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and Fig. 1 is a partially cutaway front view of the urine bag of the present invention, and Fig. 2 is a partially cutaway front view of the urine bag of the present invention, and Fig. 2 is a cross-sectional view of the urine bag of the present invention.
FIG. 3 is a cross-sectional view taken along line II, and a partially cutaway perspective view of the check valve. l...-Urine bag 3...Small chamber 7...Original plate container 13...-Opening port 15b...Opening part 16... -Second seat 2...Bag body 4...Check valve 8...Urine drainage port 15...First seat

Claims (1)

[Claims] (1) A bag body having a urine storage section surrounded by a flexible sheet, and a bag body that is located at the upper part of the bag body and is made of a hard material, has a urine drainage port, and has a urine drainage port on the side of the urine storage section. a flexible first sheet having a small chamber positioned therein and having an open opening on its side; and a flexible first sheet having an opening substantially the same shape as the open opening of the small chamber, and having an edge of the opening sealed around the opening; and a flexible second sheet that is sealed to each other at the periphery of the first sheet except for the lower end thereof, and when urine flows from the urine drainage port, the urine flows into the small chamber. The first sheet and the second sheet are separated, and urine flows into the urine storage section through an opening formed between them, and when urine does not flow into the urine drainage port, the first sheet and the second sheet are separated. A urine bag characterized in that the sheet and the second sheet are in close contact with each other so that urine that has once entered the urine storage section does not flow back into the small chamber.