JPH09173440A - Drain bag for easy introduction of urine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve urine introducing performance by specifying an inner diameter of a urine introducing tube. SOLUTION: In a drain bag comprising a sealed bag formed from a synthetic resin sheet for storing urine, a urine introducing tube provided on it to introduce urine, and a discharge tube provided on a bottom part of the bag to discharge urine, an inner diameter of the urine introducing tube is set at 5.2-6.0mm, so urine introducing performance is favorable. For a urine introducing tube 8 of an inner diameter of 6.2mm, water will not reach the bag 1 because of air lock, but 47ml and 27ml of water are stored respectively in a second liquid sump 15 and the urine introducing tube 8. For the urine introducing tube 8 of an inner diameter of 5.3mm, water is not stored in the second liquid sump 15, 46ml and 27ml of water are stored respectively in the bag 1 and the urine introducing tube 8. The inner diameter of the urine introducing tube is thus favorably set at 5.2-6.0mm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain bag used for storing urine of a patient in a medical facility or the like.

[0002]

2. Description of the Related Art In a medical facility, a drain bag is used for urinating and collecting urine from a patient whose self-urination function is deteriorated or a patient after surgery. The conventional drain bag is a sealed bag-shaped body for storing urine, a urethral tube for introducing urine provided in the bag-shaped body, and a reservoir provided at the bottom of the bag-shaped body. It is composed of a urinary canal that discharges urine, and is used by connecting one end of the urinary canal to the other end of the catheter that is placed in the patient's body. Urine simply flows by gravity into the ureter through the catheter, and is eventually stored in the bag. Conventionally used urethral tubes have an inner diameter of about 7.0 mm. By the way, in order to ensure safety and hygiene and comfort for the patient using the drain bag, urine needs to smoothly flow into the bag during urination, and means for preventing invasion of bacteria into the urethral system. It is also necessary to provide. Due to such demands, various improvements have been made to conventional drain bags. For example, one of them is a bag-shaped sheet in which a vent hole is cut out and a filter is welded from below. As a result, urine is smoothly introduced into the bag-shaped body and invasion of bacteria from the outside is prevented. In addition, there is one in which a ventilation hole is formed in a part of a drip chamber for urine dropping provided at the upper end of the bag-shaped body of the drain bag so as to communicate with the ureter, and a filter is provided therein. By interposing the chamber between the ureter and the bag, it is possible to prevent backflow of miscellaneous bacteria propagated in the bag from the ureter to the urinary tract. Further, by providing a ventilation hole in a part of the chamber, the urinary conductivity can be improved.

[0003]

Drain bags provided with these means have been provided, but the effects are not sufficient. These means are effective in the process of introducing urine from the ureter into the pouch, but before urine reaches the pouch, that is, in the process of flowing urine through the ureter for several tens of cm. Does not show sufficient effect. In the process of urine flowing through the ureter, air may accumulate in the ureter and the flow of urine may be obstructed by the air, resulting in an air lock phenomenon in which urine does not flow. This phenomenon not only causes the bladder to be compressed and causes discomfort to the patient, but also may cause backflow into the body due to accumulated air or vibration. However, such a phenomenon tends to occur more easily due to the recent low beds. The present invention has been made to solve such a problem, and an object thereof is to provide a drain bag having good urinary conductivity.

[0004]

As a result of various investigations, the present inventors achieved the above-mentioned object by limiting the inner diameter of the ureter to a predetermined range. That is, the drain bag of the present invention, a sealed bag-shaped body for storing urine made of a synthetic resin sheet, a urethral tube for introducing urine provided in the bag-shaped body, and the bottom of the bag-shaped body. And a discharge pipe for discharging stored urine, wherein the inner diameter of the urinary conduit is 5.2 to
It is set to 6.0 mm.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, it is important to set the inner diameter of the ureter to be in the range of 5.2 to 6.0 mm. If the inner diameter is larger than 6.0 mm, the air lock phenomenon is likely to occur, and if it is smaller than 5.2 mm, the flow rate cannot be sufficiently secured, which is not preferable.

The urethral tube is preferably made of a soft tube such as vinyl chloride resin and has a length of 100 to 100.
A range of 130 cm is suitable. A connector for connecting with a catheter indwelling in the patient's body is provided at the tip of the ureter. The front and back sheets constituting the bag-shaped body are plastic sheets having a thickness of 0.1 to 0.4 mm, and the plastic sheets include vinyl chloride resin, polyethylene, ethylene-vinyl acetate copolymer,
Examples thereof include polycarbonate, polyester, polybutadiene, polypropylene, polyamide, ethylene-methacrylate copolymer and the like.

The upper part of the bag-like body is provided along the upper edge of the bag-like body, preferably the upper edge, for maintaining the shape of urine stored in the bag-like body against the weight thereof. It is preferable to provide a supporting member over the whole.

The support member may be formed by joining the front and back sheets on the upper peripheral edge of the bag-like body in a strip shape, or by sandwiching another sheet made of plastic or paper or a rod-shaped body or a pipe between the front and back sheets. Thus, the one formed on the upper part of the bag-shaped body is preferable. Furthermore, the support member includes a bed,
A suspension hole or a portable hole portion into which a finger or the like can be inserted for convenient carrying may be provided so as to be conveniently used by suspending it from a trolley stand or the like with a string or the like.

The shape of the bag-like body is not particularly limited, but a laterally long shape is preferable so that it can be hung even at a low hanging height. In addition, the bottom of the bag-shaped body may be inclined toward the drain pipe located at one end of the bottom so that urine can be easily drained from the outlet.

A clamp or the like is attached to the discharge pipe for discharging the stored urine so that it can be opened and closed.

Further, in the bag-shaped body, as a means for improving the urine-conducting property, a sheet for the bag-shaped body is formed with a vent hole for ventilation, and a filter is welded from below the hole, or a urine-conducting body at the upper end of the bag-shaped body is pierced. A drip chamber for urine drip is provided so as to communicate with the tube,
A ventilation hole may be formed in a part thereof and a filter may be provided therein.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of an embodiment of the drain bag of the present invention.

Referring to FIG. 1, the drain bag of the present invention is a sealed bag 1 and a bag 1 for storing urine of a patient.
Has a supporting member 2 provided on the upper part of the. The bag-shaped body 1 is
Two vinyl chloride resin sheets are laminated together. The support member can be formed by sandwiching another plastic sheet between the front and back sheets. In this embodiment, a portable hole 3 into which a finger or the like can be put is provided in the center of the support member, and a hanging hole through which a hanging string for hanging a bed, a gurtle stand or the like is passed on both sides thereof. 4, 4'are provided.

The shape of the bag-like body is a generally oblong rectangular shape, but the bottom of the bag-like body is gently inclined toward a discharge pipe 5 located at one end of the bottom for discharging stored urine. Is preferred. Due to this inclination, urination from the outlet 5 is improved.

The discharge pipe 5 is provided with a clamp 6 and can be opened and closed. With the clamp 6 closed during urine storage, bend the part where the discharge tube is connected to the bag-shaped body as shown in phantom in FIG. 1, and attach the tip 5 ′ to the bottom of the bag-shaped body 1. It is inserted into the opened pocket 7.

A urethral tube 8 for introducing urine is provided on the upper part of the bag-shaped body 1, and the urine guiding tube 8 is provided with a drip chamber 9 provided on the upper part of the bag-shaped body 1 to form the bag-shaped body. 1, and urine is introduced into the bag 1 from the urethral tube 8 through the drip chamber 9. As a result, the germs propagated in the bag 1 are prevented from flowing back from the ureter 8 into the urinary tract to prevent infection. Further, a filter 10 for ventilation is provided above the drip chamber 9 so that air in the bag-like body is removed in the process of introducing urine from the urethral tube 8 through the drip chamber 9 into the bag-like body 1. It is excreted and has good urinary performance.

The sheet of the bag-like body 1 is provided with a vent hole 11 in which a filter is welded from below the hole. Thus, the urine introduced from the urethral tube 8 through the drip chamber 9 into the bag-shaped body 1 before and after the front and back are in close contact can be smoothly introduced into the bag-shaped body. The vent hole 11 must be provided above the liquid surface of the maximum volume of stored urine so that urine does not leak from the vent hole 11.

The urethral tube 8 is a soft tube made of vinyl chloride resin. The length is about 120 cm, which is the minimum required length for allowing movement such as changing the direction of the body of the patient sleeping in the bed. A connector 12 is provided at the tip of the urethral duct for connecting to a catheter indwelling in the patient's body, and the shape thereof is preferably a bamboo shoot shape so as to be applicable to all types of catheters.

[0019]

[Experimental Example 1] The results of conducting a urinary test using tubes having various inner diameters as the urinary tract are shown below. Using the drain bag described above, the inner diameters of 7.0 mm, 6.2 mm, 5.9 mm and 5.8 m were determined by the experimental system shown in FIG.
A urethral test of a ureteral tube having a diameter of 5.3 mm was performed. That is, using the pump 14 for the water in the first liquid reservoir 13,
An average human urine production rate of 62 ml / h was delivered to the second reservoir 15 for 70 minutes. The second liquid reservoir 15 is assumed to be a human bladder, and the state in which the water delivered from the first liquid reservoir 13 flows into the bag-shaped body 1 via the 16 Fr catheter 16 and the urethral duct 8 is shown. I observed. The Fr16 catheter 16 is most commonly used as a catheter placed in the human urethra and has an outer diameter of about 5.3c.
m, and the inner diameter of the urine guiding portion is 2.4 to 3.3 mm.

In the figure, h is the height difference between the bottom of the second liquid reservoir 15 assuming a bladder and the highest point A of the curved portion of the ureteral tube 8 communicating with the bag-shaped body 1. Urine is simply introduced into the bag by gravity, and the larger the height difference h, the easier the urine flows. However, in this experiment, it was set to 7 cm. The reason for this is that the most severe case (high and low) is used when the catheter that is actually placed in the bed is connected to the catheter and the ureter is hung, and the bag-like body is hung by a string on a bed or gertle stand. The difference is small).

As a result of the experiment, the ureter 8 having an inner diameter of 7.0 mm
However, air was collected in the urethral tube 8 and the flow was obstructed by the air (air lock), so that water could not be introduced into the bag-shaped body 1. In the ureteral tube 8 having an inner diameter of 6.2 mm, water does not reach the bag-shaped body 1 due to the air-lock, and 4
7 ml and 27 ml of water were collected in the urethral tube 8. In the ureteral tube 8 having an inner diameter of 5.9 mm, 19 ml of water was accumulated in the bag-shaped body 1, 30 ml of water was accumulated in the urethral tube 8, and 13 ml of water was accumulated in the second liquid reservoir 15. In the ureteral tube 8 having an inner diameter of 5.8 mm, 41 ml of water was collected in the bag-shaped body 1, 33 ml of water was collected in the urethral tube 8, and 3.4 ml of water was collected in the second liquid reservoir 15. In the ureteral tube 8 having an inner diameter of 5.3 mm, water does not accumulate in the second liquid reservoir 15 and the bag-shaped body 1
In the ureter 8 and 27 ml in the ureter 8.

As is clear from the above results, by using the urethral tube 8 having an inner diameter of 5.2 to 6.0 mm,
Excellent urinary performance can be achieved. Generally, it is thought that a thicker tube has better urinary conductivity, but the above results show that a superior effect is exhibited when a thinner tube is used than before, and it is unexpected from conventional knowledge. The result.

[0023]

[Experimental Example 2] The inner diameter of the ureteral tube of the present invention is 5.2 to 6.0 m.
In addition to the drain bag made m, a drain bag having a ureter with a larger inner diameter was subjected to a biological test in rabbits to observe urinary properties.

An 8 Fr catheter was placed in the urethra of the rabbit and the above-mentioned urethral duct was connected to it.

The results are shown in Table 1. The inner diameter is 5.9 mm,
The 5.3 mm ureter had good urinary properties, but an inner diameter of 7.
No urine flowed in the 0 mm, 6.9 mm and 6.2 mm ureters. In order to observe the appearance of the bladder when urine did not flow, after confirming that urine did not flow, the lower abdomen of the rabbit was incised and observed, but urine continuously accumulated in the bladder, When the bladder capacity was exceeded, urine leaked from between the catheter connected to the bladder and the urethra. Further, the air accumulated in the urethra regurgitated toward the bladder when vibration was applied, and bubbles were observed in the bladder. The air accumulated in the bladder did not escape at all even after a while, but it came out of the body by strongly pressing the bladder. Therefore, when a urethral tube having an inner diameter larger than 6.0 mm is used, airlock occurs and urine does not flow, so that the air may flow back into the body in the urethral tube, which is not preferable.

The urinary canal having an inner diameter of 5.2 to 6.0 mm can smoothly introduce urine into the bag-shaped body without air accumulation in the urinary canal. Further, in order to secure the flow rate, it is preferable that the inner diameter is large. Therefore, the particularly preferable inner diameter of the ureterus is 5.5 to 6.0 mm.

[0027]

[Table 1]

[0028]

EFFECTS OF THE INVENTION As is clear from the above, by setting the inner diameter of the ureter to be 5.2 to 6.0 mm, the urine can be smoothly bagged without causing airlock in the process of flowing in the ureter. Urine can be introduced into the body.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a drain bag of the present invention.

FIG. 2 is a schematic diagram showing an experimental system for a urinary test using the drain bag of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag-shaped body 2 Support member 3 Portable hole 4, 4'Hanging hole 5 Urinary tract 5'Tip 6 Clamp 7 Pocket 8 Ureter 9 Drip chamber 10 Filter 11 Vent 12 Connector 13 First liquid Reservoir 14 Pump 15 Second liquid reservoir 16 16Fr catheter

Claims (3)

[Claims] 1. A sealed bag-shaped body made of a synthetic resin sheet for storing urine, a urethral tube for introducing urine provided in the bag-shaped body, and a urinary tube provided at the bottom of the bag-shaped body. A drain bag having a discharge tube for discharging stored urine, wherein the inner diameter of the urethral tube is 5.2 to 6.0 mm. 2. The inner diameter of the ureteral tube is 5.5 to 6.0 mm
The drain bag according to claim 1, which is in the range of. 3. The drain bag according to claim 1, wherein the urethral tube is made of vinyl chloride resin.