JP2523436Y2 - Telescopic indwelling catheter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a telescoping indwelling catheter to be worn inside a patient suffering from dysuria including urinary incontinence.

[Conventional technology]

In prostatic hypertrophy, dysuria occurs, causing frequent urination and dysuria, and finally paradoxical incontinence in which chronic urinary retention causes the urine filled in the bladder to leak. Therapies can be broadly divided into palliative treatment and root treatment. Palliative treatment includes regulated urination (self-urinating), continuous urination with an indwelling catheter, hyperthermia, and enlargement of the urethral stenosis due to prostatic hypertrophy. There is a method of creating a tunnel through which urine flows, and root treatment methods include transurethral prostatectomy and prostatectomy.

The conventional catheter used in the method of continuous urination using the indwelling catheter described above passes a tube having one end fixed in the bladder with a balloon or the like through the urethra and the other end several cm to 15 cm outside the penis glance (glans). Pull it out and connect the tip to a urine bag or leg bag.
In this way, the tip of the catheter protrudes longer than the penis,
In addition, since the user must always carry a urine storage bag or the like, the activity is restricted, and inconvenience often occurs in daily life including sexual life.

[Problems to be solved by the invention]

An object of the present invention is to provide an indwelling catheter which does not cause any inconvenience in daily life even when worn constantly.

[Means for solving the problem]

In order to achieve the above object, in the catheter of the present invention, a tube extending from the bladder to the tip of the penis in the urethra is formed by a thin film except for at least the prostate part,
An intra-bladder fixing material is provided on the bladder side of the tube, and an extra-glance fixing material having an opening is provided on the penis tip side.

A stopper or a connector can be connected to the opening of the fixing member outside the glance.

[Action]

In the present invention, one end of the tube is fixed in the bladder by an intravesical fixation material, the other end is fixed to the tip of the glance by an extragrance fixation material, and the tube does not protrude from the penis. In the normal state of the penis, the tube is held in the urethra without stretching, but when the penis erects, the portion formed by the thin film of the tube stretches and is held in the urethra.

By attaching a stopper to the opening of the outside glance fixing material, urine can be stored, and by connecting a connector to the opening of the outside glance fixing material, continuous urination can be achieved.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

FIGS. 1a, 1b and 1c are a front view, a sectional view and a side view, respectively, of an embodiment of the present invention using a balloon-type fixing material in the bladder. Reference numeral 1 denotes an intravesical fixation material, in which a balloon chamber 2 is formed with a part of a tube as a double wall, a central portion of the tube is formed as a urethral tube 3, and a urethral hole 4 is provided at the tip. Following the intravesical fixation material 1, there is a tube portion 5 that passes through the prostate, the center of which is continuous with the ureter 3, and a thin balloon passage 6 communicating with the balloon chamber 2 is provided in a part of the wall. ing. Intravesical fixation material 1 and tube part 5
Is made of a material having a moderate elasticity. In particular, the tube portion 5 needs to have elasticity enough to withstand the pressure exerted by the enlarged prostate. The tube portion 5 is connected to an easily expandable and contractible tube portion 7 formed of a thin film. The inside of the tube portion 5 is formed as a urinary canal 8 communicating with the urinary canal 3 of the tube portion 5. A balloon tube 9 connected to the balloon passage 6 is inserted. At the tip of the tube portion 7, an extra-glance fixing material 10 is provided, and its lateral surface 11 has a shape following the shape of the glance extending from the urethral outlet of the glance 12 to the outer surface. The central portion has an opening 13 communicating with the urinary canal 8, and the inner surface 14 of the opening 13 is provided with appropriate irregularities so as to engage with a stopper and a connector described later. The distal end of the balloon tube 9 passes through the inside of the outside glance fixing member 10 and opens on the outer surface of the outside glance fixing member 10, and has a built-in check valve 15.

FIG. 2 shows an operating state of the intravesical fixation material 1 of the catheter shown in FIG. 1. When sterilized water is fed from the balloon tube opening of the extra-glance fixation material 10, the balloon chamber passes through the balloon tube 9 and the balloon passage 6, Sterile water is pressed into the balloon chamber 2 and the balloon chamber 2 is inflated so that a tube wall outside the balloon chamber 2 projects outward to form a so-called balloon, by which one end of the catheter is held in the bladder.

FIG. 3 shows a state in which a stopper is attached to the catheter shown in FIG. 1. A stopper 16 is an insertion portion 17 which fits into the opening 13 of the extra-glance fixing member 10 and a lid which sits on the distal end surface of the extra-glance fixing member 10. The stopper 18 is pushed into the opening 13 of the outer glance fixing member 10 so that the urinary tract 8
Can be closed.

FIG. 4 shows a state in which a connector is mounted on the catheter shown in FIG. 1. A connector 19 has an insertion portion 20 which fits into the opening 13 of the extra-glance fixing material 10 and a connecting portion 21 which projects from the extra-glance fixing material 10. By pressing the connector 19 into the opening 13 of the fixing material 10 outside the glance.
By urging the urine storage bag or leg bag or the like at the connecting portion 21 via the introduction tube 22, the urination can be led out by fixing the 19 to the non-grance fixing material 10.

FIG. 5 shows an embodiment in which the balloon tube of the catheter shown in FIG. 1 has a different configuration, and the same parts as those in FIG. 1 are denoted by the same reference numerals. That is, the balloon tube 23 is formed in a spiral shape, and one end is connected to the balloon passage of the tube portion 5,
The other end is connected to the fixing material 10 outside the glance,
It can easily follow the expansion and contraction of

FIG. 6 is still another embodiment of the balloon tube of the catheter shown in FIG. 1, and the same parts as those in FIG. 1 are denoted by the same reference numerals. In this example, the balloon tube 24 is embedded in the tube portion 7 so that the tube portion 7 and the balloon tube 24 can move integrally. In this case, the thickness of the tube portion 7 is only slightly increased only in a portion through which the balloon tube 24 passes, and does not affect the expansion and contraction of the tube portion 7 at all.

7a, 7b and 7c are a front view, a cross-sectional view and a side view, respectively, of an embodiment of the present invention using a wing-shaped fixing material in the bladder. 101 is an intravesical fixation material, a plurality of wings 102 are formed by dividing a part of the tube into a plurality of parts in the longitudinal direction and bending outwards, the center of the tube is formed as a urinary canal 103, and Is the urinary hole 104
It has. Following the intravesical fixation material 101, there is a tube portion 105 that passes through the prostate, and the inside communicates with the ureter 103. The intravesical fixation material 101 and the tube portion 105 are made of a material having a moderate elasticity. In particular, the tube portion 105 needs to have elasticity enough to withstand the pressure applied by prostatic hypertrophy. The tube portion 105 is connected to an easily expandable and contractible tube portion 106 formed of a thin film, and the inside thereof is formed as a urinary canal 107 communicating with the urinary canal 103 of the tube portion 105. At the tip of the tube portion 106 is provided a non-glance fixing material 108, the side surface 109 of which is a glance 110.
Has a shape along the shape of the glance extending from the urethral outlet to the outer surface, and has an opening 111 communicating with the urinary canal 107 at the center of the outer glance fixing material 108. Reference numeral 112 has appropriate irregularities so as to engage with a stopper and a connector described later.

FIG. 8 shows the operating state of the intravesical fixation material 101 when the catheter shown in FIG. 7 is inserted into the urethra, and while inserting a jig called a stylet into the catheter to extend the wing 102 linearly, Insert into Intravesical fixation material
When the jig is pulled out when 101 reaches the bladder, wing 1
02 reopens again as before, and one end of the catheter is retained in the bladder.

FIG. 9 shows a state in which a stopper is attached to the catheter shown in FIG. 7, and has substantially the same structure as that shown in FIG. That is, the stopper 113 is the fixing material 1 outside the glance.
Insertion part 114 and glance fixing material 10 that fit into opening 111 of 01
1 and a lid 115 that sits on the top surface
The urinary canal 107 can be closed by pushing the 113 into the opening 111 of the extra-glance fixing material 101.

FIG. 10 shows a state in which the connector is mounted on the catheter shown in FIG. 7, and the connector 116 comprises an insertion portion 117 and a connecting portion 118 in the same manner as that shown in FIG.

FIG. 11 is an explanatory view of the method of using the present invention using the catheter of FIG. 1 as an example. 201 is the bladder, 202 is the bladder outlet, 203
Is a prostate, 204 is a penis, 205 is glance, and 206 is an anatomical view of the urethra. When a catheter is inserted through the urethra 206 and sterile water is fed from the opening of the balloon tube 15 after the intravesical fixation material 1 reaches the inside of the bladder 201, the balloon chamber 2 of the intravesical fixation material 1 expands to form a balloon. Then, the bladder outlet 202 is closed. On the other hand, the extraglance fixation material 10 is retained on the glance 205, so that the catheter is stably retained in the urethra without being retracted into the bladder or falling out of the penis. In this case, the tube section 5 of the catheter is located in the part of the prostate, which resists pressure due to prostatic enlargement and does not block the urethra. When the penis erects, the length of the urethra increases, but since the tube portion 7 formed of the thin film of the catheter extends and follows, no excessive compressive force is applied to the bladder or the penis.

It is preferable that the intravesical fixation material and the tube portion located in the prostate are formed integrally, and natural rubber, synthetic rubber,
Materials such as silicon rubber, urethane rubber, soft vinyl chloride, natural rubber or synthetic rubber with silicon rubber or Teflon coated on the surface can be used. For the tube portion formed by the thin film, the above-mentioned materials or a combination thereof, or an elastic film such as ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-methyl acrylate copolymer can be used. , Thickness is 200μ
m, preferably 10 to 50 μm, and a 50% tensile elastic modulus of 0.4 kg / mm ² or less. Fixing material outside glance,
The stopper, the connector, and the balloon tube may be made of the same material as the intravesical fixation material and the tube portion of the prostate.

Usually, the length of the tube portion located in the prostate is preferably about 5 cm. The length of the tube portion formed of the thin film is determined based on the length of the urethra of the user.

In the above-described example, the stopper and the connector are described as the fitting type, but the invention is not limited thereto, and a screw type and other types can be used. In the above example, except for the intravesical fixation material and the tube part in the prostate,
Although the remaining portion is entirely formed of a thin film, only a part of the remaining portion may be formed of a thin film, and the other portions may be formed of a normal tube.

[Effect of the invention]

According to the present invention, by fixing one end of the catheter inside the bladder and the other end outside the glance, the catheter can be stably held in the urethra without being pulled into the bladder or falling out of the penis during use. Since the tube portion formed by the thin film follows the expansion and contraction of the penis, the user does not feel any pain or inconvenience even while wearing, and further, it is possible to store urine in the bladder by wearing a stopper. It can be connected to the connector and drained to the urine storage bag as needed, so that daily activities are not hindered at all.

[Brief description of the drawings]

1a, 1b, and 1c are front views, cross-sectional views, and side views, respectively, of an embodiment of the present invention. FIG. 2 is a front view of essential parts in the use state of FIG. 1, and FIG. FIG. 4 is a cross-sectional view of a main part in a state where a stopper is mounted, FIG. 4 is a cross-sectional view of a main part in a state where a connector is mounted in FIG. 1, and FIGS. 5 and 6 are embodiments in which the balloon tube of FIG. 7, a, b, and c are front, cross-sectional, and side views, respectively, of another embodiment of the present invention. FIG. 8 is a cross-sectional view of the fixation material in the bladder at the time of insertion of FIG. , FIG. 9 is a sectional view of a main part of FIG. 7 in a state where a stopper is mounted, and FIG.
Sectional view of main part of connector shown in FIG.
Fig. 11 is an illustration of the method of use of the present invention. 1, 101: Fixation material in the bladder 5, 105: Tube part of prostate 7, 106: Tube part formed by thin film 10, 108: Fixation material outside Glance 13, 111: Opening of fixation material outside Glance 16, 113: Stopper 19, 116: Connector

Claims (3)

(57) [Scope of request for utility model registration] A tube extending from the bladder into the urethra from the bladder to the tip of the penis is formed of a thin film except for at least the prostate part. A telescoping indwelling catheter, wherein a fixing material is provided. 2. The telescoping indwelling catheter according to claim 1, wherein a stopper can be inserted into an opening of the fixing material outside the glance. 3. The connector according to claim 1, wherein a connector can be connected to an opening of the fixing member outside the glance.
A telescopic indwelling catheter according to claim 1.