WO2015075841A1 - Intermittent self-catheterization catheter - Google Patents

Abstract

Provided is an intermittent self-catheterization catheter which can be cleaned easily in a short time. An intermittent self-catheterization catheter (1) comprises a tubular urinary catheter (10) and a cap (20) for sealing a urine outlet on a proximal end of the urinary catheter (10). The urinary catheter (10) has a urinary hole (13) which is formed to open in an axial direction thereof on a tip (11) of a distal end thereof.

Description

Intermittent self urinary catheter

The present invention relates to a reusable intermittent self urinary catheter that a patient can use by herself.

∙ There are limits to the current treatment with drugs, etc. for advanced urine discharge disorders due to various causes. If urinary discharge persists for a long period of time, a large amount of residual urine and insufficient pressure drop in the bladder can adversely affect kidney function, such as poor contraction of the bladder and frequent occurrence of urinary tract infection. May result in renal failure, resulting in the need for hemodialysis.

One way to prevent these complications is that when a patient with difficulty in urinating the bladder, such as a patient with dysuria, has urged to urinate, the catheter is inserted from the urethra to the bladder and the urine in the bladder is removed. Treatment (self-urination) that is guided out of the body and discharged is performed.

In contrast to the method of inserting a catheter into the bladder all day to drain the remaining urine from the bladder, this self-conduction urine is intermittently used by the patient using the silicone rubber catheter several times a day. This is a method for preventing the bladder and kidneys from deteriorating by inserting a catheter into the urine and taking out the remaining urine in the bladder, and its effectiveness is generally well known.

Also, since the catheter is inserted only during urination, the catheter is not necessary except during urination, and the burden on the daily life of the patient is small, which is also a useful treatment for the patient to lead a comfortable life.

The current Japanese urinary feeding method in Japan is often performed by repeatedly using a catheter using silicone rubber, which is a safe material for the body. After urinating using a catheter, it is common to wash the used catheter with tap water and immerse it in a disinfectant solution (for example, 0.025% benzalkonium chloride aqueous solution) for storage. It is.

As such a catheter used for self urination, a catheter having a hole for urinating from the bladder (urinary tract hole) is provided on the side of the distal end side (side inserted into the urethra) of the catheter. (For example, refer to Patent Document 1).

However, as described above, a catheter used for self-urination is generally used repeatedly several times and needs to be cleaned each time. Therefore, when a urinary hole is provided on the side surface on the distal end side of the catheter, There is a problem that the tap water flow is stopped by the tip closed when the tap water for cleaning the catheter passes through the lumen of the catheter, and the cleaning takes time. Further, the closed tip becomes a dead space, and dirt is easily accumulated in the dead space.

Since a catheter for self-conducting urine is to be washed and reused multiple times by a patient or the like, shortening of the washing time and easy washing of the catheter are required.

JP 2001-104472 A

The present invention has been made in view of the above problems, and an object of the present invention is to provide an intermittent self urinary catheter that can be easily washed with a short washing time.

In order to achieve the above object, an intermittent self-guiding catheter according to one embodiment of the present invention is a reusable intermittent self-guiding catheter comprising a urinary catheter having a urine outlet at a proximal end, The urinary catheter has a urinary hole formed at the distal end of the urinary catheter so as to open in the insertion direction of the urinary catheter.

An intermittent self urinary catheter according to another aspect of the present invention is formed such that the urinary hole opens in the insertion direction of the urinary catheter.

An intermittent self urinary catheter according to another aspect of the present invention includes a cap of the urinary catheter, and the cap has a urinary port configured to be in fluid communication with the urine discharge port of the urinary catheter. A holder that is detachably engaged with an opening of a disinfecting liquid case that contains the disinfecting liquid, and a cap part that is configured to freely open and close the urine opening of the holder, the holder and the cap The part is integrally formed.

An intermittent self-urinating catheter according to another embodiment of the present invention is formed such that a lower end portion of the holder is inclined with respect to a direction perpendicular to a direction in which the holder is engaged with the disinfecting liquid case.

In an intermittent self urinary catheter according to another aspect of the present invention, the inner diameter of the urinary puncture hole is the same as the inner diameter of the lumen of the urinary catheter.

In an intermittent self-urinating catheter according to another aspect of the present invention, the urine outlet of the urinary catheter is detachably connected to the urinary hole of the holder.

In an intermittent self urinary catheter according to another embodiment of the present invention, the distal end of the urinary catheter is tapered.

According to the present invention, an intermittent self urinary catheter that can be easily washed with a short washing time can be provided.

It is the schematic which shows the intermittent self-conduction urinary catheter which concerns on this embodiment. It is the schematic which shows the intermittent self urinary catheter which concerns on other embodiment. It is the schematic which shows the intermittent self urinary catheter which concerns on other embodiment. It is the schematic which shows the intermittent self urinary catheter which concerns on other embodiment. It is the schematic which shows the intermittent self urinary catheter which concerns on other embodiment. It is the schematic which shows the intermittent self urinary catheter which concerns on other embodiment.

Hereinafter, a reusable intermittent self urinary catheter that can be used by a patient according to an embodiment of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding components are denoted by the same reference numerals, and redundant description is omitted.

FIG. 1 is a schematic view showing an intermittent self urinary catheter according to the present embodiment, and FIG. 1a is a schematic side sectional view showing a state where the intermittent self urinary catheter is housed in a disinfecting liquid case. FIG. 1 is a schematic front view showing a state in which an intermittent self-urinating catheter is housed in a disinfecting liquid case, and FIG.

As shown in FIG. 1, the intermittent self-urinating catheter 1 includes a tubular urinary catheter 10 made of, for example, silicone rubber, and a cap 20 for sealing the urinary catheter 10.

The urinary catheter 10 has a urine outlet 12 at its proximal end, and a urinary hole 13 formed at the distal end 11 of the urinary catheter so as to open in the direction of insertion into the urethra. A lumen 14 for allowing urine to pass between the discharge port 12 and the urine opening 13 is provided. The distal end of the urinary catheter 10 is tapered so that it can be easily inserted into the urethra. It is preferable that the inner diameter of the urinary hole 13 is formed to be the same size as the inner diameter of the lumen 14. As a result, the frictional resistance applied to the urine by the inner wall of the urinary catheter 10 when the urine flows through the lumen 14 can be reduced.

The cap 20 includes a holder 24 that is detachably engaged with an opening of a disinfecting liquid case 30 that stores a disinfecting liquid, and a cap portion 21 for sealing the urine outlet 12 of the urinary catheter 10. It is formed in a substantially circular shape as viewed. The holder 24 is formed integrally with the cap portion 21 via the coupling portion 28.

The holder 24 is detachably connected to the urine outlet 12 of the urinary catheter 10, and has a urine inlet 25 configured to be in fluid communication with the urine outlet 12, and the cap portion 21 has the urine outlet 25. The urine outlet 25 and the urine outlet 12 of the urinary catheter 10 can be sealed.

The holder 24 has a screw groove 27 a on its inner peripheral surface, and thereby engages with a screw groove provided on the outer peripheral surface of the end portion of the disinfectant case 30 to engage the cap 20 and the disinfectant case 30. Configured to match. The holder 24 has a seal member 29 a at a position where the edge 32 of the disinfectant case 30 contacts when the cap 20 is engaged with the disinfectant case 30. This prevents the disinfecting solution in the disinfecting solution case 30 from flowing out of the case. Furthermore, the holder 24 has a protrusion 26 on its outer surface, and the protrusion 26 is configured to engage with the engagement portion 22 of the cap portion 21.

The cap portion 21 is configured to rotate in an open state and a closed state with respect to the urine opening 25 of the holder 24 with the coupling portion 28 as a hinge. By engaging the engaging part 22 with the protrusion part 26 with the cap part 21 closed, it is possible to prevent the cap part 21 from opening unexpectedly.

Further, the cap 20 is configured to function as a lid of the disinfectant case 30 by attaching the holder 24 to the opening of the disinfectant case 30 with the cap part 21 closed.

For example, PP (polypropylene) can be used as the material of the cap 20, and PP, PE (polyethylene), PET (polyethylene terephthalate), or the like can be used as the material of the disinfectant case 30. In the present embodiment, the urinary catheter 10 is formed of silicone rubber, but is not limited thereto, and is a material generally used for catheters that can be reused. For example, polyisoprene, butadiene / styrene copolymer, polybutadiene, polychloroprene, isobutylene / isobutylene copolymer, butadiene / acrylonitrile copolymer, ethylene / propylene copolymer, chlorosulfonated polyethylene, acrylic ester copolymer Polymers, polyurethanes, perfluoropropene / vinylidene fluoride copolymers, and the like can be used.

In the intermittent self-urinating catheter 1 configured as described above, since the urinary hole 13 is formed at the tip 11 of the distal end, the urinary catheter 10 is inserted into the urethra by the patient for self-urination. As soon as the distal end 11 of the urinary catheter 10 reaches the bladder, the urination is started. That is, as compared with a conventional catheter having a urinary hole provided only on the side surface, the insertion depth of the catheter can be reduced, and damage to the bladder wall due to insertion (contact) of the catheter can be prevented. it can. Furthermore, since the urinary tract 13 is formed at the tip 11, the direction of urine movement when introduced from the bladder into the urinary tract 13 is substantially linear and the resistance is reduced, so that urine is discharged from the bladder. It is easy to do.

Further, the intermittent self urinary catheter 1 has a urinary hole 13 formed at the distal end 11, thereby restricting the flow of tap water when tap water for washing passes through the lumen of the urinary catheter 10. Therefore, the cleaning can be easily performed and the cleaning time can be shortened. Further, since the urinary hole 13 is formed at the distal end 11, there is no dead space as in the prior art, dirt is not easily accumulated in the urinary catheter 10, and the antiseptic solution is filled in the lumen of the urinary catheter 10. Cheap.

In the intermittent self-urinating catheter 1 according to the present embodiment, the cap portion 21 and the holder 24 are integrally formed by the coupling portion 28, and it is not necessary to remove the cap 20 from the urinary catheter 10. Since it is possible to urinate, it is possible to easily lead urine without dirtying hands.

In addition, the intermittent self urinary catheter 1 of the present invention can be used for a predetermined period by performing predetermined cleaning and disinfection, and is discarded after a predetermined period. If the urinary catheter 10 is excessively soiled or damaged within a predetermined period, the urinary catheter 10 can be removed from the urinary opening 25 of the cap 20 and replaced with a new one. In this case, the cap 20 of the intermittent self-urinating catheter 1 can be reused.

Next, an intermittent self urinary catheter according to another embodiment of the present invention will be described.

FIG. 2 is a schematic view showing an intermittent self urinary catheter according to another embodiment of the present invention, and FIG. 2a is a schematic side sectional view showing a state where the intermittent self urinary catheter is housed in a disinfectant case. FIG. 2b is a schematic front view showing a state in which the intermittent self-urinating catheter is housed in a disinfecting liquid case, and FIG. 2c is a schematic top view of the intermittent self-urinating catheter.

The cap 20 of the intermittent self urinary catheter 1 according to the embodiment shown in FIG. 1 is formed in a substantially circular shape when viewed from above, whereas the cap 20 of the intermittent self urinary catheter 1 according to the present embodiment is shown in FIG. As shown in FIG. 2, the upper surface is substantially elliptical.

Thus, by forming the cap 20 in a substantially oval shape when viewed from above, the intermittent self-urinary catheter 1 can be easily grasped during use, and the operability during urination can be improved.

FIG. 3 is a schematic view showing an intermittent self urinary catheter according to another embodiment of the present invention, and FIG. 3a is a schematic side sectional view showing a state where the intermittent self urinary catheter is housed in a disinfectant case. FIG. 3b is a schematic front view showing a state in which the intermittent self-urinating catheter is housed in a disinfecting liquid case, and FIG. 3c is a schematic top view of the intermittent self-urinating catheter.

In the intermittent self-urinating catheter 1 according to the embodiment shown in FIG. 1, the cap 20 and the disinfecting liquid case 30 are configured to be screw-engaged, whereas the intermittent self-urinating catheter according to the present embodiment. As shown in FIG. 3, the cap 1 and the disinfecting liquid case 30 are engaged with each other by fitting. That is, the holder 24 of the cap 20 has a protrusion 27b formed in a horizontal direction along the inner peripheral surface thereof, and the protrusion 27b is formed in an engagement groove provided on the outer peripheral surface of the end portion of the disinfectant solution case 30. By engaging, the cap 20 and the disinfecting liquid case 30 are fitted and engaged.

Thus, since the cap 20 and the disinfecting liquid case 30 are engaged by fitting, the disinfecting liquid case 30 can be easily sealed simply by pushing the cap 20 into the disinfecting liquid case 30.

FIG. 4 is a schematic view showing an intermittent self urinary catheter according to another embodiment of the present invention, and FIG. 4a is a schematic side sectional view showing a state where the intermittent self urinary catheter is housed in a disinfectant case. FIG. 4b is a schematic front view showing a state in which the intermittent self-urinating catheter is housed in a disinfecting liquid case, and FIG. 4c is a schematic top view of the intermittent self-urinating catheter.

The intermittent self-urinating catheter 1 according to the embodiment shown in FIG. 1 is formed in a substantially circular shape when viewed from above, whereas the intermittent self-urinating catheter 1 according to the present embodiment has an upper surface as shown in FIG. It has a substantially elliptical shape.

Further, the intermittent self-urinating catheter 1 according to the present embodiment is formed such that the cap 20 and the disinfecting liquid case 30 are engaged by fitting, similarly to the intermittent self-urinating catheter 1 shown in FIG. Yes.

As shown in FIG. 4a, the holder 24 is formed so that the lower end 23 thereof has an angle with respect to the horizontal direction. In other words, the lower end portion 23 of the holder 24 is formed so as to be inclined with respect to a direction perpendicular to the direction (pressing direction) in which the holder 24 is fitted (engaged) with the disinfecting liquid case 30. Further, the disinfecting liquid case 30 is formed with a step portion 31 corresponding to the shape of the lower end portion 23 of the holder 24. When the cap 20 is twisted in the state where the cap 20 shown in FIG. 4 a is fitted to the disinfecting liquid case 30, the lower end portion 23 of the holder 24 and the step portion 31 of the disinfecting liquid case 30 come into contact with each other, so that the cap 20 The protrusion 27 b of the cap 20 moves away from the engagement groove of the disinfectant solution case 30.

Since the cap 20 is thus formed, the cap 20 can be easily removed from the disinfectant case 30.

FIG. 5 is a schematic view showing an intermittent self-urinating catheter according to another embodiment of the present invention, and FIG. 5a is a schematic side sectional view showing a state in which the intermittent self-urinating catheter is housed in a disinfectant case. FIG. 5b is a schematic top view of the intermittent self-conducting urinary catheter.

In the intermittent self-urinating catheter 1 according to the embodiment shown in FIG. 1, the inner diameter of the urinary opening 25 of the holder 24 is substantially constant over the entire length, whereas the intermittent self-urinating catheter 1 according to the present embodiment is formed. In the urinary catheter 1, as shown in FIG. 5a, the urinary opening 25 has a diameter-enlarged portion 25a in which the inner diameter of the end opposite to the side to which the urinary catheter 10 is connected is enlarged. . The enlarged diameter portion 25a is formed integrally with the end portion of the urinary orifice 25 on the side to which the urinary catheter 10 is connected via the tapered portion 25b.

Since the urinary orifice 25 of the holder 24 has an enlarged diameter portion 25a, a syringe or the like is inserted into the enlarged diameter portion 25a, and tap water for cleaning flows into the lumen of the urinary catheter 10 with a strong water pressure. The urinary catheter 10 can be efficiently washed.

Further, in the intermittent self-urinating catheter 1 according to the present embodiment, the cap 21 includes a seal member 29b. The sealing member 29b abuts on the opening of the urinary opening 25, so that the urine opening 25 and the urine outlet 12 of the urinary catheter 10 can be reliably sealed.

In addition, the intermittent self-urinating catheter 1 according to the present embodiment is configured so that the cap 20 and the disinfecting liquid case 30 are engaged by fitting, similarly to the intermittent self-urinating catheter 1 shown in FIGS. 3 and 4. Is formed. Further, the intermittent self-urinating catheter 1 according to the present embodiment is formed so that the lower end portion 23 of the holder 24 has an angle with respect to the horizontal direction, similarly to the intermittent self-urinating catheter 1 shown in FIG. A step portion 31 corresponding to the shape of the lower end portion 23 of the holder 24 is formed in the disinfectant case 30. Furthermore, the intermittent self-conducting urinary catheter 1 according to the present embodiment is formed in an approximately elliptical shape when viewed from the top like the intermittent self-conducting urinary catheter 1 shown in FIGS. 2 and 4 (see FIG. 5b).

FIG. 6 is a schematic view showing an intermittent self urinary catheter according to another embodiment of the present invention, and FIG. 6a is a schematic side sectional view showing a state where the intermittent self urinary catheter is housed in a disinfectant case. FIG. 6 b is a schematic top view of an intermittent self-conducting urinary catheter.

Unlike the intermittent self urinary catheter 1 shown in FIG. 5, the intermittent self urinary catheter 1 according to the present embodiment has a thread groove 27 a on the inner periphery of the holder 24, and the outer peripheral surface of the end of the disinfectant solution case 30. The cap 20 and the disinfecting liquid case 30 are engaged with each other by screw engagement with a thread groove provided in the cap. The thread groove 27a is configured such that the cap 20 can be attached to and detached from the disinfectant case 30 by rotating (twisting) the cap 20 by about 180 °.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are achieved. For example, in each of the embodiments described above, the urinary hole 13 is provided only at the distal end 11 of the urinary catheter 10, but in addition to this, a separate urinary hole 13 may be provided on the side surface of the urinary catheter 10. Good.

1 intermittent self urinary catheter, 10 urinary catheter, 11 tip, 12 urine outlet, 13 urinary hole, 20 cap, 21 cap part, 22 engaging part, 24 holder, 25 urinary orifice, 25a enlarged diameter part, 25b taper part, 26 projection part, 27a thread groove, 27b protrusion, 28 coupling part, 29a seal member, 29b seal member, 30 disinfectant case, 32 edge.

Claims (6)

A reusable intermittent self-feeding catheter,
Comprising a urinary catheter having a urine outlet at the proximal end;
The urinary catheter is an intermittent self urinary catheter having a urinary hole formed at the distal end of the urinary catheter so as to open in the insertion direction of the urinary catheter. Comprising a cap of the urinary catheter,
The cap is
A holder having a urinary opening configured to be in fluid communication with the urine outlet of the urinary catheter, and removably engaged with an opening of a disinfecting liquid case for storing a disinfecting liquid;
A cap portion configured to be capable of opening and closing the urine opening of the holder;
The intermittent self-urinating catheter according to claim 1, wherein the holder and the cap portion are integrally formed. The intermittent self-urinating catheter according to claim 2, wherein a lower end portion of the holder is formed to be inclined with respect to a direction perpendicular to a direction in which the holder is engaged with the disinfectant case. 4. The intermittent self-urinating catheter according to claim 1, wherein an inner diameter of the urinary puncture hole is the same as an inner diameter of a lumen of the urinary catheter. The intermittent urinary catheter according to any one of claims 1 to 4, wherein the urine outlet of the urinary catheter is detachably connected to the urinary hole of the holder. The intermittent self-conveying catheter according to any one of claims 1 to 5, wherein a distal end portion of the urinary catheter is tapered.

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