JP2618991B2 - Urine bag - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a urine bag used for patients with urinary disorders.

[Conventional technology]

Patients with ureterocutaneous fistulas, artificial bladder fistulas or urinary incontinence patients or other patients with urinary disorders who do not rely entirely on the power of others or do not always feel uncomfortable It is desirable not to disturb the activities in the house.

Under such circumstances, a urine collection container is used for a patient as described above. Conventionally, various types of urine collection containers are used, but each urine collection container is for storing urine guided by an internal, for example, a catheter or an external type urine conduit. In such a urine collection container, a urine bag that is flexible in view of the patient's activity has been used instead of a rigid container. However, in a flexible urine bag, when an external pressure is applied due to various factors, urine in the urine bag flows backward, which has a detrimental effect on a patient. Therefore, the following is known as a urine bag for preventing urine from flowing back. A urinary conduit known in Japanese Patent Publication Nos. 56-501035 and 57-107521, which is provided with a check valve to prevent the urine in the urine bag from flowing back to the patient. JP-A-52-139295, JP-A-58-25105, JP-A-61-25
No. -147738, a check valve is provided between a urine conduit and a urine bag, which is known in Japanese Utility Model Publication No. 53-14072 by the present applicant, so that urine does not flow back to the patient from inside the urine bag. What you did. JP-B-61-109, JP-A-48-153
A non-return valve is provided between the urine conduit and the urine bag, which is known in Japanese Patent Publication No. 91, etc., and prevents a negative pressure in the urine conduit due to continuous flow of urine in the urine conduit. Equipment that is provided with

[Problems to be solved by the invention]

Since the urine bag is simply provided with a check valve for preventing the backflow of urine in the urine conduit, if an external pressure is applied to the urine bag while urine is flowing, the urine in the urine bag flows backward. Since there is a slight time lag until the check valve is reached, the check valve operates during that time to prevent the urine from flowing back. However, if the time lag before the check valve is completely closed is longer than the time lag before urine reaches the check valve, some urine cannot be prevented from flowing back, and furthermore, the patient's bladder cannot be prevented. It is not possible to completely prevent damage to the bladder due to an increase in the pressure inside, and contamination of the urethra, the bladder, and the like by bacteria and the like derived from refluxed urine. Also, these bags cannot work effectively against the negative pressure caused by the continuous flow of urine in the urine conduit, placing a strain on the patient's bladder.

Urine bags originate from bladder damage, regurgitated or continuously flowing urine due to increased and decreased pressure (negative pressure) in the patient's bladder for exactly the same reasons as for the urine bags described above. Bacterial contamination cannot be completely prevented. Furthermore, since the urine bag has almost no time lag until the urine in the urine bag flows back to the check valve as compared with the urine bag, more urine may flow back.

The urinary bag disclosed in Japanese Patent Publication No. 61-109 is provided with a check valve and a device for preventing negative pressure in the urine conduit, which increases the pressure in the bladder and decreases the pressure (negative pressure) in the bladder.
It is possible to completely prevent contamination of bacteria and the like derived from refluxed urine or continuously flowing urine. However, in the structure of the above-described check valve, the flat surface of the inlet hole communicating with the inside of the urine bag has a thin and freely bendable sheet-like valve.
It is difficult to expect the effect of backflow prevention over a long period of time. The urine bag disclosed in Japanese Patent Application Laid-Open No. 48-15391 is used for collecting urine discharged from a patient, and comprises a tube, a collection container, and a tube in a single direction from the tube to the collection container. It has a check valve for guiding urine, and a device for preventing continuous formation of a urinary column in the tube. According to this urine bag, it is possible to completely prevent damage to the bladder and the like due to pressure increase and pressure decrease (negative pressure) in the bladder of the patient, and contamination of bacteria and the like by urine that has flowed back or continuously flows. is there. However, although the structure of the check valve and the structure of the continuous column formation preventing device are not necessarily clear in this publication, according to the embodiments, both are housed in the collection container. And, due to the structure of this urine bag, the urinary column formation prevention device needs to be provided vertically above the check valve,
Therefore, in order to secure a substantial capacity of the collection container, the size of the chamber as the urethral column formation preventing device is limited. If the size of this chamber is not large enough, the urinary column formation prevention mechanism will be inadequate, and the function as a cushion tank for the backflow phenomenon of urine due to the time lag when the check valve is closed will also be insufficient. The possibility comes out. Also, the check valve is
Since two thin flexible sheets are overlapped and their peripheral edges are joined except for one part, for example, when a urine bag is installed, these sheets are dropped and function as a check valve. May be lost. Therefore, this check valve needs to be supported by a rigid plate, and the structure tends to be complicated as a whole.

Therefore, the present invention has been made in view of the above circumstances,
Completely prevents pressure increase (negative pressure) in the patient's bladder due to external pressure, etc., and pressure reduction (negative pressure) in the patient's bladder due to urine flowing continuously in the urine conduit, and bacterial contamination, etc. It is an object of the present invention to provide a urine bag that can be manufactured, has a simple structure, and is easy to manufacture.

[Means for solving the problem]

In order to solve the above problems, a urine bag according to the present invention includes a bag body having a urine container surrounded by a flexible sheet, a urine bag provided at an upper portion of the bag body, and formed of a hard material. A small chamber provided with a urine port and having an opening on the side face located on the urine storage section side, an opening having substantially the same shape as the opening of the small chamber, and an edge of the opening at a periphery of the opening; A non-return valve comprising a flexible first sheet whose part is sealed and a flexible second sheet which is sealed to the periphery of the first sheet except for a lower end thereof; When urine flows from the urine, the urine flows through the small chamber to separate the first sheet and the second sheet from each other, flows into the urine accommodating portion from an opening formed between the first sheet and the second sheet, and When urine does not flow from the first sheet, the first sheet and the second sheet The one in which the urine once entered into the urine receiving portion is configured so as not to flow back into the small chamber.

[Operation] According to the urine bag having the above configuration, urine flowing from the urine outlet of the small chamber connected to the urine conduit is in a dripping state once it enters a small chamber having a larger diameter than the urine inlet, Pressure drop (negative pressure) not continuous with urine already stored in urine compartment
The second sheet of the check valve is pushed outward and the first sheet is pushed outward via the opening located on the side surface of the small chamber, and the two are separated to form an opening. Flows into the urine storage. Further, when an external pressure is applied to the urine storage section, the urine once stored in the urine storage section tends to flow backward, but the first sheet and the second sheet of the check valve come into close contact with each other due to the external pressure. It does not backflow, but also blocks the pressure rise in the patient's bladder due to external pressure. The urine backflow and pressure increase due to the time lag when the check valve is closed are alleviated by the small chamber.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail 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 the line II-II of FIG. 1, and FIG. 3 is a partially cutaway perspective view of a check valve. In the figure, reference numeral 1 denotes a urine bag. The urine bag 1 comprises a bag body 2, a small chamber 3 provided on the upper part of the bag body 3, and a check valve 4 provided on a side surface of the small chamber 3. ing.

The bag main body 2 is formed by bonding the respective peripheral edges of the flexible front sheet 5 and the flexible back sheet 6 by heat fusion or an adhesive to form a urine container 7 inside. The material of the flexible front and back sheets 5 and 6 constituting the bag body 2 is a soft plastic sheet having a thickness of about 0.2 to 0.4 mm, for example, a soft polyvinyl chloride, polyethylene, polypropylene / nylon laminate, ethylene vinyl acetate ( EVA) or a rubber sheet having a thickness of about 2 mm is used.

At the upper part of the bag body 2, the small chamber 3 made of a rigid material is provided. That is, a tongue-shaped hole 5a is drilled in the upper part of the front sheet 5 of the bag body 2, and the adhesive piece 3a of the small chamber 3 is heat-sealed or bonded to the edge of the hole 5a on the urine receiving portion 7 side. By joining by
The small chamber 3 is provided.

The small chamber 3 is provided with a urine inlet 8 and an air vent 9 at the upper part, respectively, and a urine conduit 10 is connected to the urine inlet 8, a filter 11 is filled in the air vent 9, and the air vent 9 is further provided. Is covered by a cap 12. The small chamber 3 has an opening 13 on a side surface located on the urine storage part 7 side, and a bottom surface 3b of the small chamber 3 is inclined toward the opening 13. The rigid material forming the small chamber 3 is made of rigid polyvinyl chloride, polypropylene, polycarbonate, ABS resin or the like.

A check valve 4 is provided at an opening 13 located on the side surface of the small chamber 3. The check valve 4 has a first sheet 15 and a second sheet 16 which are both rectangular and made of a flexible material.
The periphery of 16 is sealed except for the lower ends 15a and 16a. The first sheet 15 has an opening
A tongue-shaped mouth 15b having substantially the same shape as
The edge of the mouth portion 15b is sealed around the periphery of. Therefore, the check valve 4 is normally provided at the lower end 15a of the first seat 15.
And the lower end 16a of the second sheet 16 is kept in a closed state, and substantially prevents fluid such as urine from flowing into the check valve 4 from the urine storage section 7 side. Also, this check valve 4
When a fluid such as urine flows in the small chamber 3, the first sheet
The lower end 15a of the 15 and the lower end 16a of the second sheet 16 are separated from each other so that a fluid such as urine can flow out into the urine storing section 7.

In FIGS. 1 and 2, reference numeral 17 denotes a urine outlet, which is normally closed by a clamp, a discharge valve or the like.
When a predetermined amount of urine has accumulated, the urine is discharged by opening these clamps, discharge valves and the like.

 Next, the usage state of the urine bag having the above configuration will be described.

First, the urine bag 1 is placed at a predetermined place, for example, a patient's body, a bedside, or the like. Then, the urine guided by the internal or external type urine conduit 10 flows into the small chamber 3 from the urine outlet 8. Since the small chamber 3 is large enough and has a predetermined capacity in comparison with the diameter of the urine conduit 10, urine flows through the urine outlet 8.
When the urine flows into the small chamber 3, the urine does not continuously flow, but flows to the bottom surface 3b in a dripped state. Since the bottom surface 3a is inclined toward the opening 13 side, urine is applied with a velocity pressure and pushes the second seat 16 of the check valve 4 outward, and further pushes the first seat 15 outward. These are separated from each other to form an opening, and flow into the urine container 7. That is, the check valve 4 prevents the first seat 15 from flowing due to the head pressure of the fluid such as urine from the small chamber 3.
The lower end 15a of the second sheet 16 and the lower end 16a of the second sheet 16 are easily separated from each other and open, so that fluid such as urine in the small chamber 3 can easily flow into the urine container 7.

Also, if an external pressure is applied to the urine stored in the urine container 7 for some reason, the urine tends to flow back into the small chamber 3, but when no urine flows from the small chamber 3 as described above, Since the check valve 4 is closed, urine does not flow back into the small chamber 3, and further, a pressure increase to the patient's bladder or the like is not transmitted.
When external pressure is applied to the urine stored in the urine storage unit 7 while urine is flowing into the urine storage unit 7 from the small chamber 3, the urine tends to flow back into the small chamber 3. Lower end 15a of seat 15
And the lower end 16a of the second sheet 16 come into close contact with each other, so that urine does not flow back into the small chamber 3 and further, pressure rise to the bladder of the patient is blocked. Further, it is conceivable that urine may slightly flow back or a pressure may increase due to a time lag when the check valve 4 is closed. However, the bacteria due to the urine which has been alleviated and substantially backflowed by the small chamber 3 having a sufficient capacity can be considered. Contamination and increased pressure in the patient's bladder can be prevented.

〔The invention's effect〕

As described above in detail, the urine bag of the present invention includes a bag body having a urine storage section surrounded by a flexible sheet, and a urine bag formed of a hard material provided at an upper portion of the bag body. A small chamber provided with a urine port and having an opening on the side face located on the urine storage section side, an opening having substantially the same shape as the opening of the small chamber, and an edge of the opening at a periphery of the opening; A non-return valve comprising a flexible first sheet whose part is sealed, and a flexible second sheet which is sealed to the periphery of the first sheet except for a lower end thereof, for urinating a small chamber; The urine that has flowed in from the mouth once enters a small chamber having a diameter larger than that of the urine introduction port, and becomes a dripping state. The urine does not continue to the urine already stored in the urine storage unit, and the pressure drop (negative pressure) is reduced. Pushes the second seat of the check valve outward through the opening located on the side of Over preparative also pushed outwardly to separate the both of them to form an opening, flowing into the urine receiving unit. In addition, when an external pressure is applied to urine once stored in the urine container, the urine tends to flow backward. However, the first sheet and the second sheet of the check valve come into close contact with each other and do not flow back into the small chamber. It also blocks pressure build-up in the patient's bladder. The urine backflow and pressure increase due to the time lag when the check valve is closed are alleviated by the small chamber.

Therefore, damage due to increased pressure in the bladder of the patient due to external pressure and the like, contamination of bacteria and the like by refluxed urine, and damage due to a decrease in pressure (negative pressure) in the bladder of the patient due to urine flowing continuously in the urine conduit and bacteria, etc. Contamination can be completely prevented.

Further, since the check valve is provided on the side surface of the small chamber, the capacity of the small chamber can be made sufficiently large, and both the backflow of urine and the pressure rise due to the time lag when the check valve is closed can be substantially prevented. Thus, there is no need to support the sagging phenomenon of the check valve, the structure is simplified, and there are effects such as easy manufacture.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is a partially cutaway front view of a urine bag of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. It is a partially cutaway perspective view of a stop valve. 1 urine bag 2 bag body 3 small chamber 4 check valve 7 urine storage section 8 urine inlet 13 opening port 15 first sheet 15b … Mouth 16 …… Second sheet

Claims (1)

(57) [Claims] 1. A bag body having a urine container surrounded by a flexible sheet, and the urine container provided at an upper portion of the bag body and formed of a hard material and provided with a urine outlet. A flexible first chamber having a small chamber located on the side and having an opening on the side face, and an opening having substantially the same shape as the opening of the small chamber, and the edge of the opening being sealed around the periphery of the opening. And a check valve comprising a flexible second sheet sealed to the periphery of the first sheet except for a lower end thereof, and when urine flows in from the urethral outlet, The first sheet and the second sheet are separated from each other through the small chamber, flow into the urine accommodating portion from an opening formed between the first sheet and the second sheet, and when urine does not flow from the urine introduction port, When the first sheet and the second sheet come into close contact with each other, the sheet once enters the urine storage section. Urine bag, characterized in that urine is not configured to flow back into the small chamber.