JP6535126B2 - Intermittent self-feeding catheter - Google Patents

Description

  The present invention relates to a reusable intermittent self-feeding catheter that can be used by patients themselves.

  There is a limit in the treatment with the current drug etc. for the high urine discharge disorder due to various causes. If urinary drainage failure continues for a long time, a large amount of residual urine or insufficient pressure in the bladder may adversely affect the function of the kidney, such as occurrence of bladder contraction failure or frequent occurrence of urinary tract infection. May cause renal failure and may require hemodialysis.

  As one of the methods to prevent these complications, conventionally, when a patient who has difficulty urinating in the bladder, such as a patient with urination suffers urinating, the catheter is inserted from the urethra to the bladder and urine in the bladder is A procedure to induce and discharge outside the body (self-feeding) is performed.

  Unlike a method in which a catheter is inserted into the bladder all day to excrete the remaining urine in the bladder, this self-conduration is intermittently performed by using a silicone rubber catheter several times a day. It is a method of preventing deterioration of the function of the bladder and the kidney by inserting a catheter inside and discharging residual urine in the bladder, and its effectiveness is generally known.

  In addition, since the catheter is inserted only at the time of urine feeding, the catheter is unnecessary except at the time of urine feeding, and it is a useful treatment for patients to live a comfortable life with less burden on the daily life of the patient.

  The current method of self-condination in Japan is often performed repeatedly using a catheter using silicone rubber, which is a material safe for the body. It is common practice to wash the used catheter with tap water and immerse it in a disinfectant solution (eg 0.025% benzalkonium chloride aqueous solution) and store it after it has been urineed using a catheter It is.

  As a catheter used for such self-contrast urine, a catheter provided with a hole (conduit hole) for urinating from the bladder on the side of the tip side of the catheter (the side inserted into the urethra) is known (See, for example, Patent Document 1).

  However, as described above, since the catheter used for self-contrast urine is generally used repeatedly several times and needs to be washed each time, when the side of the distal end of the catheter is provided with a drainage hole, There is a problem that the flow of the tap water is stopped by the closed tip when the tap water for washing the catheter passes through the lumen of the catheter, and the washing takes time. In addition, the closed tip becomes a dead space, and the dead space is easily contaminated.

  Since the catheter for self-conduration is cleaned and reused a plurality of times by the patient etc., shortening of the cleaning time and easy cleaning 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-catheterizing catheter which has a short cleaning time and can be easily cleaned.

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

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

  An intermittent self-catheterizing catheter according to another aspect of the present invention includes a cap of the urinary catheter, and the cap has a urination port configured to be in fluid communication with the urine outlet of the urinary catheter. A holder detachably engaged with the opening of the disinfectant case containing the disinfecting solution, and a cap unit configured to open and close the urine passage of the holder, the holder and the cap The part is integrally formed.

  In the intermittent self-lead catheter according to another aspect of the present invention, the lower end of the holder is formed to be inclined with respect to the direction perpendicular to the direction in which the holder is engaged with the disinfectant case.

  In an intermittent self-catheterizing catheter according to another aspect of the present invention, the inside diameter of the urine passage is the same as the inside diameter of the lumen of the urine catheter.

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

  In the intermittent self-catheterizing catheter according to another aspect of the present invention, the distal end of the urinary catheter is tapered.

  According to the present invention, it is possible to provide an intermittent self-catheterizing catheter which has a short cleaning time and can be easily cleaned.

It is the schematic which shows the intermittent self-lead catheter which concerns on this embodiment. FIG. 7 is a schematic view showing an intermittent self-lead catheter according to another embodiment. FIG. 7 is a schematic view showing an intermittent self-lead catheter according to another embodiment. FIG. 7 is a schematic view showing an intermittent self-lead catheter according to another embodiment. FIG. 7 is a schematic view showing an intermittent self-lead catheter according to another embodiment. FIG. 7 is a schematic view showing an intermittent self-lead catheter according to another embodiment.

  A re-usable intermittent self-catheterizing catheter that can be used by a patient according to embodiments of the present invention will now 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 will be omitted.

  FIG. 1 is a schematic view showing an intermittent self-feeding catheter according to the present embodiment, and FIG. 1 a is a schematic side sectional view showing a state where the intermittent self-feeding catheter is housed in a disinfectant case, FIG. Fig. 1c is a schematic front view showing a state in which the intermittent self-catheterizing catheter is housed in a disinfectant solution case, and Fig. 1c is a schematic top view of the intermittent self-catheterizing catheter.

  As shown in FIG. 1, the intermittent self-catheterizing catheter 1 is provided with, for example, a tubular urinary catheter 10 formed of 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 urine hole 13 formed at its distal end 11 at its distal end so as to open in the direction of insertion into the urethra, A lumen 14 for passing urine between the outlet 12 and the urine drainage hole 13 is provided. The distal end of the urinary catheter 10 is tapered to facilitate insertion into the urethra. The inner diameter of the urine drainage hole 13 is preferably formed to have the same size as the inner diameter of the lumen 14. This makes it possible to reduce the frictional resistance applied to the urine by the inner wall of the urinary catheter 10 when the urine flows through the lumen 14.

  The cap 20 includes a holder 24 detachably engaged with the opening of the disinfectant case 30 for containing the disinfectant, and a cap 21 for sealing the urine outlet 12 of the urinary catheter 10, It is formed in a substantially circular shape visually. The holder 24 is integrally formed 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 inlet 25. By sealing the urine outlet 25 and the urine outlet 12 of the catheter 10.

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

  The cap portion 21 is configured to pivot to the open and closed states with respect to the urine outlet 25 of the holder 24 by using the connecting portion 28 as a hinge. By engaging the engaging portion 22 with the projection 26 in a state where the cap 21 is closed, it is possible to prevent the cap 21 from being unexpectedly opened.

  The cap 20 is also configured to function as a lid of the disinfecting solution case 30 by attaching the holder 24 to the opening of the disinfecting solution case 30 with the cap portion 21 closed.

  In addition, PP (polypropylene) etc. can be used as a material of the cap 20, and PP, PE (polyethylene), PET (polyethylene terephthalate) etc. can be used as a material of the disinfecting solution case 30, for example. Moreover, in this embodiment, although what was formed with silicone rubber is used as the urinary catheter 10, it is not restricted to this, It is a material generally used for a catheter, and is reusable. For example, polyisoprene, butadiene / styrene copolymer, polybutadiene, polychloroprene, isobutylene / isobutylene copolymer, butadiene / acrylonitrile copolymer, ethylene / propylene copolymer, chlorosulfonated polyethylene, acrylic ester copolymer Coalescing, polyurethane, perfluoropropene / vinylidene fluoride copolymer, etc. can be used.

  Since the intermittent self-catheterizing catheter 1 configured as described above has a urine-piercing hole 13 formed at the distal end 11 of the distal end, the patient urethralizes the urine-causing catheter 10 for urinalysis. As soon as the tip 11 of the urinary catheter 10 reaches the bladder when it is inserted into the urinary catheter, urinary drainage is started. That is, the insertion depth of the catheter can be made smaller compared to a conventional catheter in which a urine hole is provided only on the side, and the bladder wall can be prevented from being damaged by the insertion (contact) of the catheter. it can. Furthermore, since the urinary hole 13 is formed in the tip 11, the movement direction of the urine when introduced into the urinary hole 13 from the bladder becomes substantially linear and the resistance is reduced, so that the urine in the bladder is discharged. Easy to do.

  In addition, the intermittent self-catheterizing catheter 1 has a urine-piercing hole 13 formed in the tip 11 to stop the flow of the tap water when the tap water for washing passes through the lumen of the urinary catheter 10 Can be easily washed, and the washing time can be shortened. In addition, since the urinary hole 13 is formed in the tip 11, there is no dead space as in the prior art, dirt is not easily accumulated in the urinary catheter 10, and the disinfectant is filled in the lumen of the urinary catheter 10. Cheap.

  In the intermittent self-lead catheter 1 according to the present embodiment, the cap portion 21 and the holder 24 are integrally formed by the coupling portion 28, and the cap 20 need not be removed from the urine feeding catheter 10. Since it can be excreted, it can be easily urinated without staining the hands.

  In addition, the intermittent self-lead catheter 1 of the present invention can be used for a predetermined period by performing predetermined washing and disinfection, and is discarded after the predetermined period has elapsed. 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-lead catheter 1 can be reused.

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

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

  While the cap 20 of the intermittent self-feeding catheter 1 according to the embodiment shown in FIG. 1 is formed in a substantially circular shape in top view, the cap 20 of the intermittent self-feeding catheter 1 according to this embodiment is shown in FIG. As shown in the figure, the top view is formed in a substantially elliptical shape.

  By forming the cap 20 into a substantially elliptical shape in top view in this manner, the intermittent self-feeding catheter 1 can be easily grasped at the time of use, and the operability at the time of urine feeding can be improved.

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

  In the intermittent self-feeding catheter 1 according to the embodiment shown in FIG. 1, the cap 20 and the antiseptic solution case 30 are screw-engaged, while the intermittent self-feeding catheter according to the embodiment is As shown in FIG. 3, 1 is formed such that the cap 20 and the disinfectant case 30 are engaged by fitting. That is, the holder 24 of the cap 20 has the ridges 27 b formed in the horizontal direction along the inner peripheral surface thereof, and the ridges 27 b are formed in the engagement grooves provided on the outer peripheral surface of the end of the disinfectant case 30 By engaging, the cap 20 and the disinfectant case 30 are configured to be engaged with each other.

  As described above, since the cap 20 and the disinfectant case 30 engage with each other, the disinfectant case 30 can be easily sealed simply by pushing the cap 20 into the disinfectant case 30.

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

  While the intermittent self-feeding catheter 1 according to the embodiment shown in FIG. 1 is formed in a substantially circular shape in top view, the intermittent self-feeding catheter 1 according to the present embodiment is, as shown in FIG. It is formed in a substantially elliptical shape.

  Further, the intermittent self-feeding catheter 1 according to the present embodiment is formed so that the cap 20 and the antiseptic solution case 30 are engaged by fitting similarly to the intermittent self-feeding catheter 1 shown in FIG. There is.

  As shown in FIG. 4a, the holder 24 is formed such that its lower end 23 is at an angle to the horizontal. In other words, the lower end portion 23 of the holder 24 is formed to be inclined with respect to the direction perpendicular to the direction (the direction in which the holder 24 is fitted (engaged) with the disinfectant case 30). Further, a step 31 corresponding to the shape of the lower end 23 of the holder 24 is formed in the disinfectant case 30. When the cap 20 is twisted in a state where the cap 20 shown in FIG. 4a is fitted to the disinfectant case 30, the cap 20 is disinfected by the contact of the lower end 23 of the holder 24 and the step 31 of the disinfectant case 30. It moves in the direction of detachment from the case 30, and the ridges 27 b of the cap 20 come out of engagement grooves of the disinfectant case 30.

  By forming the cap 20 in this manner, the cap 20 can be easily removed from the disinfecting solution case 30.

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

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

  Since the urine outlet 25 of the holder 24 has the enlarged diameter portion 25a, a syringe or the like is inserted into the enlarged diameter portion 25a, and tap water for washing flows into the lumen of the urinary catheter 10 by strong water pressure. The urinary catheter 10 can be cleaned efficiently.

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

  In addition, the intermittent self-feeding catheter 1 according to the present embodiment is engaged with the cap 20 and the antiseptic solution case 30 in the same manner as the intermittent self-feeding catheter 1 shown in FIGS. 3 and 4. It is formed. Further, the intermittent self-feeding catheter 1 according to the present embodiment is formed so that the lower end portion 23 of the holder 24 has an angle with the horizontal direction, as in the intermittent self-feeding catheter 1 shown in FIG. A stepped 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-feeding catheter 1 according to the present embodiment is formed into a substantially elliptical top view as in the intermittent self-feeding catheter 1 shown in FIGS. 2 and 4 (see FIG. 5 b).

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

  Unlike the intermittent self-feeding catheter 1 shown in FIG. 5, the intermittent self-feeding 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 case 30. The screw 20 is configured to be engaged with a screw groove provided to engage the cap 20 and the disinfectant case 30. The screw groove 27 a is configured such that the cap 20 can be attached to and detached from the disinfectant case 30 by rotation (twist) of the cap 20 at about 180 °.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications may be made within the scope of the claims and the technical idea described in the specification and the drawings. Is possible. In addition, even if it is any shape and material which are not directly described in the specification and the drawings, it is within the scope of the technical idea of the present invention as long as the functions and effects of the present invention are exhibited. For example, in each of the embodiments described above, the urine passage 13 is provided only at the tip 11 of the urine feeding catheter 10, but in addition to this, another urine passage 13 may be provided on the side of the urine passage catheter 10. Good.

Reference Signs List 1 intermittent self-catheting catheter, 10 catheters, 11 tips, 12 urine outlets, 13 catheters, 20 caps, 21 caps, 22 engaging parts, 24 holders, 25 catheters, 25a dilations, 25b taper part, 26 projection part, 27a thread groove, 27b ridge, 28 joint part, 29a seal member, 29b seal member, 30 disinfectant case, 32 edge part.

Claims (5)

Reusable intermittent self-feeding catheters,
A urinary catheter having a urine outlet at the proximal end,
And a cap of the urinary catheter.
The urinary catheter has, at the tip of the distal end, a urinary hole formed to open in the insertion direction of the urinary catheter,
The cap is
The urinary catheter is connected to the urine outlet of the urinary catheter, and has a urine inlet configured to be in fluid communication with the urine outlet, and is detachably engaged with the opening of the disinfectant case containing the disinfectant. And the holder to
A cap unit configured to open and close the urine outlet of the holder;
The urinary inlet of the holder has, at an end closed by the cap, an enlarged diameter portion having a larger diameter than an end to which the urinary catheter is connected;
The holder has a tapered portion between the enlarged diameter portion and an end to which the urinary catheter is connected,
The enlarged diameter portion is configured to be able to insert a syringe,
The urinary catheter is formed in a straight tubular shape along the insertion direction of the urinary catheter, from the end connected to the holder to the urinary hole.
The enlarged diameter portion of the urinary port of the holder extends along the insertion direction of the urinary catheter,
The tapered portion is formed so as to extend along the insertion direction of the urinary catheter and to gradually decrease in diameter from the enlarged diameter portion toward the end to which the urinary catheter is connected. Urine catheter.   The catheter of claim 1, wherein a lower end 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.   The intermittent self-catheterizing catheter according to claim 1 or 2, wherein the inner diameter of the urine passage is the same as the inner diameter of the lumen of the urinary catheter.   The intermittent self-catheterizing catheter according to any one of claims 1 to 3, wherein the urine outlet of the urinary catheter is detachably connected to the urine outlet of the holder. The intermittent self-catheterizing catheter according to any one of claims 1 to 4, wherein the distal end of the urinary catheter is tapered.

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