Urethral catheter cap

Abstract

This urinary catheter cap comprises: a main body that includes a urine introduction path including a connection hole to be connected to a urinary catheter and a discharge hole for discharging urine; a lid part that includes a portion having a tubular shape with a first end portion on the discharge hole side and a second end portion on the opposite side, and opens and closes the discharge hole; a partition part that partitions the tubular portion of the lid part into a plurality of spaces; and a hydrophobic film formed so as to plug two or more spaces at the second end portion of the lid part. The partition part may comprise a partitioning plate bridged between a plurality of sites on the inner circumferential surface of the tubular portion of the lid part.

Description

[Technical Field]

[0001] The present invention relates to a cap for a urinary catheter. [Background technology]

[0002] Urethral catheters have been known as medical devices for assisting urinary catheterization in patients who have difficulty urinating. For example, Patent Document 1 discloses a urinary catheter that includes a rod-shaped catheter body, a balloon portion formed at one end of the catheter body, and an operating portion formed at the other end of the catheter body.

[0003] Furthermore, as a component for controlling urine overflow from a catheter, Patent Document 2 discloses a cap for a self-catheterization catheter, which includes an end nozzle formed into a spherical surface at the lower end of a cylindrical body, a housing with a notch and an inner cavity for slidably accommodating the lower end, and a base connector for the cylindrical body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5318925 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-236999 Summary of the Invention [Problem to be solved by the invention]

[0005] Although a catheter cap such as that disclosed in Patent Document 2 is useful for controlling urine overflow from a catheter, it has several problems.

[0006] For example, in the case of clean intermittent catheterization (CIC), if the tip of the catheter is not pointed precisely toward a toilet or urinal, urine discharged from the catheter may splash onto the surrounding area of ​​the toilet. Therefore, splashing can be prevented by keeping the cap closed until urine is discharged, and then opening the cap only after the tip of the catheter is pointed precisely toward the toilet. However, when the cap is closed and the catheter is sealed, urine does not flow to the tip of the catheter, making it impossible to confirm whether the catheter has reached the bladder, making it difficult to time the opening of the cap when the tip of the catheter is pointed toward the toilet.

[0007] On the other hand, in indwelling catheterization using a catheter such as that described in Patent Document 1, the positioning of the indwelling balloon is important. For example, one method involves inserting the catheter into the urethra, confirming that it has reached the bladder and that urine has begun to flow, and then inflating the balloon a little further to determine its position. The reason for not inflating the balloon once urine has begun to flow is that even if the tip of the catheter has reached the bladder, the balloon may still be located within the urethra. In this case, inflating the balloon could damage the urethra. However, as with clean intermittent catheterization (CIC), if the cap is closed to seal the catheter, it is impossible to confirm whether the catheter has reached the bladder. Therefore, while the catheter can be inserted into the urethra with the cap open, this makes it impossible to stop urine from flowing. Therefore, there is a risk that the user may panic when urine overflows from the cap and insert the catheter too far in order to position the balloon. As a result, when the bladder contracts during catheter placement, the tip of the catheter may come into contact with the bladder wall, potentially damaging the bladder wall.

[0008] SUMMARY OF THE INVENTION Accordingly, one object of the present invention is to provide a cap for a urethral catheter that can improve the ease of use of the catheter during self-catheterization.

[0009] Another object of the present invention is to provide a cap for a urinary catheter that can prevent urine discharged from the catheter from splashing when performing clean intermittent catheterization (CIC).

[0010] A further object of the present invention is to provide a cap for a urethral catheter that allows the position of the catheter balloon to be appropriately determined when catheterizing through an indwelling catheter. [Means for solving the problem]

[0011] A urinary catheter cap according to one embodiment of the present invention comprises a main body including a urine introduction path including a connection hole connected to a urinary catheter and a discharge hole for discharging urine, a lid portion for opening and closing the discharge hole, an opening formed in the main body or the lid portion facing the urine introduction path, and a hydrophobic film formed to close the opening.

[0012] According to this configuration, a hydrophobic film is formed in the opening of the cap. This allows air inside the catheter to escape while the urethral catheter is inserted into the urethra, so that after the tip of the catheter reaches the bladder, urine in the bladder can be smoothly guided to the cap. Meanwhile, urine discharged from the bladder is blocked by the hydrophobic film, so that the urine can be retained in the urine introduction path of the cap. As a result, after confirming that the urine has reached the cap, the next step can be carried out slowly and without rushing.

[0013] For example, when performing clean intermittent catheterization (CIC), splashing of urine can be prevented by opening the lid of the cap toward the toilet after confirming that urine has reached the toilet. On the other hand, when performing indwelling catheterization, the catheter can be inserted calmly to the appropriate position after confirming that urine has reached the catheter, allowing for good positioning of the balloon.

[0014] Furthermore, after self-catheterization is completed, the urinary catheter is disinfected by placing it in a case containing disinfectant, but the cap of the present invention allows the disinfectant to penetrate the inside of the catheter even while it is still attached to the urinary catheter, thereby maintaining the urinary catheter clean.

[0015] In the urinary catheter cap according to one embodiment of the present invention, the opening may be formed in the lid portion.

[0016] In one embodiment of the present invention, the lid portion is connected to the main body via a hinge mechanism so as to be freely opened and closed, and the lid portion may have a cylindrical plug portion that is inserted into the discharge hole and has the opening formed therein.

[0017] With this configuration, since the lid is connected to the main body via a hinge mechanism, there is no need to position the lid relative to the discharge hole when closing the lid. Also, since the plug portion is the part that blocks the discharge hole, the discharge hole can be easily blocked by pushing the lid into the discharge hole.

[0018] In the urinary catheter cap according to one embodiment of the present invention, the lid portion may include a screw-type lid portion that is detachable from the main body.

[0019] According to this configuration, the main body and the lid are screwed together by the screw-type lid, so that the discharge hole can be reliably blocked.

[0020] In the urethral catheter cap according to one embodiment of the present invention, the opening may be formed so as to be connected to a midpoint in the direction of urine flow of the urine introduction path of the main body.

[0021] When the urinary catheter cap according to one embodiment of the present invention further includes a film placement portion formed protruding from the side wall of the main body, the hydrophobic film may be placed on the film placement portion.

[0022] In one embodiment of the urinary catheter cap according to the present invention, the lid portion may include a duckbill valve having a pair of inclined valve bodies extending from the end of the discharge hole in a converging manner toward the connection hole.

[0023] With this configuration, for example, a urine collection bag or the like can be inserted directly into the cap.

[0024] In one embodiment of the present invention, the lid portion may include a stick-shaped lid portion having a plug portion that is inserted into the discharge hole and a columnar portion connected to the plug portion.

[0025] According to this configuration, since the lid is stick-shaped, the lid can be easily opened with one hand, for example, by pressing the side of the lid with the thumb.

[0026] In one embodiment of the present invention, the film placement portion includes a support protruding from the side wall of the main body, and a film placement plate formed in a flange shape relative to the support, having a first engagement portion on its peripheral edge, and on which the hydrophobic film is placed, and the lid portion may include a second engagement portion that engages with the first engagement portion of the film placement plate from the outer surface side of the film placement plate.

[0027] With this configuration, the first and second engagement parts can be disengaged by pressing the film placement plate, allowing the lid to be opened. Because the lid can be opened without directly touching it, urine can be reliably prevented from getting on hands when opening the lid.

[0028] In the urethral catheter cap according to one embodiment of the present invention, the main body may be formed from a material containing a substance having antibacterial properties.

[0029] With this configuration, the cap can be kept clean because the main body is made of a material containing an antibacterial substance. Furthermore, the inclusion of an antibacterial substance reduces the amount of ammonia produced from urea when urine reaches the cap, thereby reducing the urine odor.

[0030] In the urethral catheter cap according to one embodiment of the present invention, the discharge hole may have a curved shape in which the diameter increases toward the open end of the discharge hole.

[0031] According to this configuration, after the urine has been discharged, the urine can be easily removed from the edge of the discharge hole, so that the work of wiping the edge of the discharge hole after urinating can be omitted.

[0032] In the urethral catheter cap according to one embodiment of the present invention, the main body may be formed from a translucent material containing a substance that changes color when exposed to water.

[0033] With this configuration, the color of the main body changes when urine reaches the cap, making it easy to visually confirm that urine has reached the cap.

[0034] In the urethral catheter cap according to one embodiment of the present invention, an inner surface of the urine introduction channel of the main body may be textured.

[0035] With this configuration, when urine reaches the cap, the state of light reflection from the main body changes, making it easy to visually confirm that urine has reached the cap.

[0036] The urethral catheter cap according to one embodiment of the present invention may further include a detection means for detecting that urine has reached the urine introduction channel, and a transmission means for transmitting information about the arrival of urine based on detection by the detection means.

[0037] With this configuration, various information can be obtained depending on the type of transmitting means. For example, if the transmitting means is a sound transmitting means, the arrival of urine can be easily confirmed audibly, and if the transmitting means is a vibration transmitting means, the arrival of urine can be easily confirmed by skin sensation. Furthermore, if the transmitting means is a wireless transmitting means, medical personnel and the patient themselves can indirectly obtain objective information on whether the catheter has been inserted correctly.

[0038] The urinary catheter cap according to one embodiment of the present invention may further include a second lid portion that is attached to the main body or the lid portion in an openable and closable manner and that covers the hydrophobic film in an airtight manner.

[0039] With this configuration, closing the second lid can prevent the odor of urine that has reached the cap from leaking to the outside through the hydrophobic film. On the other hand, because the second lid can be opened and closed freely, leaving the second lid open until the urine reaches the cap does not block the air that flows to the outside through the hydrophobic film.

[0040] In the urinary catheter cap according to one embodiment of the present invention, the hydrophobic film may be formed from a material containing an ammonia-degrading enzyme.

[0041] According to this configuration, the ammonia in the urine can be decomposed by contacting the urine with the hydrophobic film, thereby reducing the odor of the urine that has reached the cap.

[0042] In the urinary catheter cap according to one embodiment of the present invention, the hydrophobic film may contain an acidic agent.

[0043] According to this configuration, when urine comes into contact with the hydrophobic film, the ammonia in the urine can be neutralized by the acidic agent, thereby reducing the odor of urine that has reached the cap.

[0044] A urinary catheter cap according to one embodiment of the present invention comprises a main body including a urine inlet passage including a connection hole connected to a urinary catheter and a discharge hole for discharging urine; a lid portion having a cylindrically shaped portion with a first end on the discharge hole side and a second end on the opposite side, which opens and closes the discharge hole; a partition portion dividing the cylindrical portion of the lid portion into a plurality of spaces; and a hydrophobic film formed at the second end of the lid portion so as to block at least two of the spaces.

[0045] According to this configuration, a hydrophobic film is formed on the lid. This allows air inside the catheter to escape while the urethral catheter is inserted into the urethra, so that after the tip of the catheter reaches the bladder, urine in the bladder can be smoothly guided to the cap. Meanwhile, urine discharged from the bladder is blocked by the hydrophobic film, so that the urine can be retained in the urine introduction path of the cap. As a result, after confirming that the urine has reached the cap, the next step can be carried out slowly and without rushing.

[0046] Furthermore, the lid is divided into multiple spaces, each sealed with a hydrophobic film. This allows the cap to be tilted, preventing the disinfectant from flowing into all spaces, even if the disinfectant remaining in the catheter after disinfection flows into the cap. This prevents clogging of the hydrophobic film in any of the spaces, ensuring good breathability of the hydrophobic film even after disinfection.

[0047] In the urinary catheter cap according to one embodiment of the present invention, the partition portion may include a partition plate installed between a plurality of locations on the inner circumferential surface of the cylindrical portion of the lid portion.

[0048] This configuration allows the volume of each space to be relatively large. Therefore, even if the disinfectant flows into the space, the effect of the surface tension of the disinfectant in the space can be reduced. As a result, the disinfectant in the space can be quickly removed.

[0049] In one embodiment of the present invention, the lid portion includes a covering member formed on the second end of the tubular portion of the lid portion so as to cover the hydrophobic film, and the covering member may have a protrusion that protrudes outward from its side wall.

[0050] With this configuration, the protrusion for opening and closing the lid can be separated from the opening and closing position of the lid on the cap, which prevents urine from coming into contact with the hand when opening the lid to urinate.

[0051] In the urinary catheter cap according to one embodiment of the present invention, the protrusion may include an annular flange portion formed around the entire outer periphery of the covering member.

[0052] In one embodiment of the present invention, the covering member includes a top wall portion that covers the hydrophobic film and has an upper surface that is a plain surface without any holes, and the side wall of the covering member may have a circulation port formed in the lateral direction along the upper surface of the top wall portion to ensure the circulation of air inside and outside the covering member.

[0053] With this configuration, the top surface of the ceiling wall is completely closed, so even if water hits the cap during cleaning of the catheter, the water is prevented from coming into contact with the hydrophobic film, thereby protecting the hydrophobic film from water pressure.

[0054] In a urethral catheter cap according to one embodiment of the present invention, the hydrophobic film may have a thickness of 10 μm to 2 mm, an air permeability (Gurley value) measured in accordance with JIS P 8117 (Gurley method) of 0.1 seconds to 500 seconds / 100 mL, and a water pressure resistance measured in accordance with JIS L 1092-B (high water pressure method) of 0.1 kPa or more.

[0055] With this configuration, even if the cap is used for a long period of time, the water repellency, breathability, pressure resistance and long-term water repellency of the hydrophobic film can be maintained. [Brief explanation of the drawings]

[0056] [Figure 1] FIG. 1 is a perspective view of a catheter to which a cap according to a first embodiment of the present invention is attached. [Figure 2] 2A and 2B are diagrams for explaining the cross-sectional structure of the shaft of FIG. [Figure 3] FIG. 3 is a perspective view of the cap according to the first embodiment of the present invention. [Figure 4] FIG. 4 is a perspective view of the cap according to the first embodiment of the present invention. [Figure 5] FIG. 5 is a side view of the cap according to the first embodiment of the present invention. [Figure 6] FIG. 6 is a cross-sectional view taken along the line AA in FIG. [Figure 7] FIG. 7 is a cross-sectional view of a cap according to a second embodiment of the present invention. [Figure 8] FIG. 8 is a cross-sectional view of a cap according to a second embodiment of the present invention. [Figure 9] FIG. 9 is a perspective view of a cap according to a third embodiment of the present invention. [Figure 10] FIG. 10 is a perspective view of a cap according to a fourth embodiment of the present invention. [Figure 11] FIG. 11 is a bottom view of the lid of FIG. [Figure 12] FIG. 12 is a side view of the main body of FIG. [Figure 13] FIG. 13 is a cross-sectional view taken along the line AA in FIG. 10. [Figure 14] FIG. 14 is a perspective view of a cap according to a fifth embodiment of the present invention. [Figure 15] FIG. 15 is a side view of a cap according to a fifth embodiment of the present invention. [Figure 16] FIG. 16 is a cross-sectional view taken along the line AA in FIG. [Figure 17] FIG. 17 is a perspective view of a cap according to a sixth embodiment of the present invention. [Figure 18]FIG. 18 is a side view of a cap according to a sixth embodiment of the present invention. [Figure 19] FIG. 19 is a cross-sectional view taken along the line AA in FIG. [Figure 20] FIG. 20 is a perspective view of a cap according to a seventh embodiment of the present invention. [Figure 21] FIG. 21 is a plan view of a cap according to a seventh embodiment of the present invention. [Figure 22] FIG. 22 is a side view of a cap according to a seventh embodiment of the present invention. [Figure 23] FIG. 23 is a rear view of a cap according to the seventh embodiment of the present invention. [Figure 24] FIG. 24 is a cross-sectional view taken along the line AA in FIG. [Figure 25] FIG. 25 is a view showing a cross section taken along the line BB in FIG. [Figure 26] FIG. 26 is a perspective view of a cap according to an eighth embodiment of the present invention. [Figure 27] FIG. 27 is a side view of a cap according to an eighth embodiment of the present invention. [Figure 28] FIG. 28 is a cross-sectional view taken along the line AA in FIG. [Figure 29] FIG. 29 is a cross-sectional view taken along the line AA in FIG. [Figure 30] FIG. 30 is a perspective view of a cap according to a ninth embodiment of the present invention. [Figure 31] FIG. 31 is a side view of a cap according to a ninth embodiment of the present invention. [Figure 32] FIG. 32 is a cross-sectional view taken along the line AA in FIG. [Figure 33] FIG. 33 is a cross-sectional view taken along the line AA in FIG. [Figure 34] FIG. 34 is a perspective view of a cap according to a tenth embodiment of the present invention. [Figure 35] FIG. 35 is a side view of a cap according to a tenth embodiment of the present invention. [Figure 36] FIG. 36 is a perspective view of a cap according to a tenth embodiment of the present invention. [Figure 37] FIG. 37 is a side view of a cap according to a tenth embodiment of the present invention. [Figure 38A] FIG. 38A is a diagram illustrating a method for fixing the hydrophobic film. [Figure 38B] FIG. 38B shows the next step in FIG. 38A. [Figure 39A] FIG. 39A is a diagram illustrating a method for fixing a hydrophobic film. [Figure 39B] FIG. 39B shows the next step in FIG. 39A. [Figure 39C] FIG. 39C shows the next step in FIG. 39B. [Figure 39D] FIG. 39D shows the next step in FIG. 39C. [Figure 40] FIG. 40 is a diagram for explaining how to use the catheter. [Figure 41] FIG. 41 is a diagram for explaining how to use the catheter. [Figure 42] FIG. 42 is a diagram illustrating how to use the catheter. [Figure 43] FIG. 43 shows the state of the catheter during disinfection. [Figure 44] FIG. 44 is a perspective view of a cap according to an eleventh embodiment of the present invention. [Figure 45] FIG. 45 is a cross section taken along line AA in FIG. [Figure 46] FIG. 46 is a perspective view of the cap of FIG. [Figure 47] FIG. 47 is a diagram for explaining the internal structure of the lid portion of the cap shown in FIG. [Figure 48] FIG. 48 is a diagram for explaining the effect of the cap of FIG. [Figure 49] FIG. 49 is a diagram for explaining the effect of the cap of FIG. [Figure 50] FIG. 50 is a perspective view of a cap according to a twelfth embodiment of the present invention. [Figure 51] FIG. 51 is a cross section taken along line AA in FIG. [Figure 52] FIG. 52 is a perspective view of the cap of FIG. [Figure 53] FIG. 53 is a diagram for explaining the internal structure of the lid portion of the cap of FIG. [Figure 54] FIG. 54 is a perspective view of a cap according to the thirteenth embodiment of the present invention. [Figure 55] FIG. 55 is a perspective view of a cap according to the thirteenth embodiment of the present invention. [Figure 56] FIG. 56 is a plan view of a cap according to the thirteenth embodiment of the present invention. [Figure 57] FIG. 57 is a side view of a cap according to the thirteenth embodiment of the present invention. [Figure 58] FIG. 58 is a cross section taken along line AA in FIG. [Figure 59] FIG. 59 is an exploded view of a cap according to the thirteenth embodiment of the present invention. [Figure 60] 60 shows a first form of the covering member of the cap of FIG. [Figure 61] FIG. 61 is a cross-sectional view showing the AA cross section of FIG. [Figure 62] FIG. 62 is a cross-sectional view showing the AA cross section of FIG. [Figure 63] 63 shows a second form of the covering member of the cap of FIG. [Figure 64] FIG. 64 is a cross-sectional view showing the AA cross section of FIG. [Figure 65] 65 is a cross-sectional view showing the AA cross section of FIG. 63. FIG. [Figure 66] FIG. 66 shows a third form of the covering member of the cap of FIG. [Figure 67] FIG. 67 is a cross-sectional view showing the AA cross section of FIG. [Figure 68] FIG. 68 is a cross-sectional view showing the AA cross section of FIG. [Figure 69] FIG. 69 shows a modified example of the cap. [Figure 70]FIG. 70 is a diagram showing an example of how to use the cap. DETAILED DESCRIPTION OF THE INVENTION

[0057] Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. [Overall configuration of catheter 1] Fig. 1 is a schematic perspective view of a catheter 1 to which a cap A1 according to a first embodiment of the present invention is attached. Fig. 2A and Fig. 2B are diagrams for explaining the cross-sectional structure of the shaft 2 in Fig. 1. Fig. 1 shows a state in which the balloon 6 of the catheter 1 is not inflated.

[0058] The catheter 1 is, for example, a medical device (urethral catheter) for assisting urinary catheterization in a patient who has difficulty urinating, and includes a shaft 2 and a base 3.

[0059] The shaft 2 is made of, for example, a flexible tube, and has a hard cap 4 attached to its tip. For example, the shaft 2 is inserted into the cap 4 to form a spigot structure, and the mating surfaces of the spigot structure are fixed to each other by welding, bonding, or the like.

[0060] The shaft 2 and the cap 4 may be formed from a base material, such as a rubber latex base material (e.g., natural rubber latex, synthetic rubber latex), a silicone base material, or a thermoplastic elastomer, that has been surface-treated. Examples of surface treatments include a hydrophilic coating that imparts lubricity to the base material, a urethane coating or fluorine coating that imparts smoothness to the base material, and a silver coating that imparts antibacterial properties to the base material. Two or more of these surface treatments may be used in combination.

[0061] A side hole 5 and a balloon 6 are formed at the tip of the shaft 2. As shown in FIGS. 2A and 2B, a urinary catheterization lumen 7 and a balloon lumen 8 are formed inside the shaft 2, which communicate with the side hole 5 and the balloon 6, respectively. The circumferential surface 9 of the shaft 2 may be smooth as shown in FIG. 2A, or may be uneven as shown in FIG. 2B. In the configuration of FIG. 2B, a plurality of ribs 10 (convex stripes) extending in the longitudinal direction of the shaft 2 form the circumferential surface 9 of the shaft 2 as an uneven surface. These ribs 10 reduce friction when inserting the catheter 1 into the urethra and when removing the catheter 1 from the urethra, thereby reducing discomfort for the patient.

[0062] In this embodiment, the balloon 6 may be formed integrally with the shaft 2. In other words, there may be no connection between the balloon 6 and the shaft 2 (note that in FIG. 1, a vague boundary 11 between the balloon 6 and the shaft 2 is indicated by a dashed line). This allows the surface of the balloon 6 and the surface (circumferential surface 9) of the shaft 2 to be continuous with a smooth surface. As a result, friction can be reduced when inserting the catheter 1 into the urethra and when removing the catheter 1 from the urethra, thereby reducing discomfort to the patient.

[0063] A cylindrical sleeve 12 may also be fitted onto the shaft 2. The sleeve 12 is attached so as to be freely movable in the longitudinal direction of the shaft 2. When inserting the catheter 1 into the urethra, the shaft 2 can be grasped via the sleeve 12 while being inserted, thereby enabling the catheter 1 to be inserted hygienically.

[0064] The base 3 may include a urination base 13 and a balloon base 14. The urination base 13 is an outlet through which urine introduced into the urinary drainage lumen 7 from the side hole 5 is discharged. The balloon base 14 is an inlet for inflating the balloon 6 with sterile water and is equipped with a check valve 15. The urination base 13 and the balloon base 14 are each cylindrically shaped with a urine inlet channel 16 and a water inlet channel 17 formed therein. While the urination base 13 and the balloon base 14 are shown in FIG. 1 as cylindrical with a substantially constant diameter, they may also be funnel-shaped, with their outer diameters widening toward the opening ends of the urination base 13 and the balloon base 14. In this case, the urination base 13 and the balloon base 14 may be referred to as a urination funnel and a balloon funnel, respectively.

[0065] The cap A1 for a urethral catheter according to the first embodiment of the present invention is provided at the open end of the urination base 13. The cap A1 is removably attached to the urination base 13 by inserting a connecting part 23 (described later) into the urine introduction channel 16 of the urination base 13. [First embodiment] Figures 3 and 4 are perspective views of the cap A1 according to the first embodiment of the present invention, with Figure 3 showing a state in which the lid portion 19 is open and Figure 4 showing a state in which the lid portion 19 is closed. Figure 5 is a side view of the cap A1 according to the first embodiment of the present invention. Figure 6 is a cross-sectional view taken along line AA in Figure 4.

[0066] The cap A1 may include a main body 18 and a lid portion 19. In this embodiment, the main body 18 and the lid portion 19 are integrally formed from a resin, and may further be an integral resin molded product.

[0067] The main body 18 and the lid 19 may be made of, for example, a general-purpose plastic (e.g., polypropylene, polyethylene, ABS resin, polycarbonate, polyamide, etc.). These general-purpose plastics may also be translucent. The main body 18 and the lid 19 may be produced as molded products by known molding methods such as injection molding, compression molding, and 3D printer molding.

[0068] Furthermore, the main body 18 and the lid 19 may contain a substance having antibacterial properties, a substance that changes color when exposed to water, etc. Examples of substances that can be used include zeolite-based, silica gel-based, glass-based, and phosphate-based antibacterial agents. Examples of substances that can change color when exposed to water include Hydrochromic (registered trademark) manufactured by Pilot Ink Co., Ltd.

[0069] To incorporate the above substances into the main body 18 and the lid portion 19, for example, a substance with antibacterial properties and a substance that changes color when exposed to water may be kneaded and mixed into the general-purpose plastic described above, and then the mixture may be molded.

[0070] Thus, if the main body 18 and the lid portion 19 contain a substance with antibacterial properties, the cap A1 can be kept clean. Furthermore, if the main body 18 and the lid portion 19 contain a substance that changes color when exposed to water, the color of the main body 18 changes when urine reaches the cap A1, making it easy to visually confirm that urine has reached the cap A1.

[0071] The main body 18 has a first end 20 and a second end 21 and is formed in a cylindrical shape with a urine inlet channel 22 extending from the first end 20 to the second end 21. The inner surface of the urine inlet channel 22 may be textured. The texture can be imparted to the inner surface of the urine inlet channel 22, for example, by forming a pattern corresponding to the texture on the surface of a mold for forming the cap A1. If the urine inlet channel 22 is textured in this way, the light reflection state of the main body 18 changes when urine reaches the cap A1, making it easy to visually confirm the arrival of urine. Note that the cap A1 may have both, or just one of, the main body 18 containing a substance capable of changing color when exposed to water and the main body 18 being textured.

[0072] Furthermore, in this embodiment, the main body 18 may have an external shape that includes a connection portion 23 and a discharge portion 24. The urine introduction path 22 may be divided into a connection hole 25 on the connection portion 23 side and a discharge hole 26 on the discharge portion 24 side. More specifically, the connection portion 23 is the portion that connects to the urination base 13 of the catheter 1, and the discharge portion 24 is the portion other than the connection portion 23, through which urine is ultimately discharged. Note that the connection portion 23 and the discharge portion 24 do not necessarily have functional names; for example, the connection portion 23 may be referred to as a first portion of the main body 18, and the discharge portion 24 may be referred to as a second portion of the main body 18.

[0073] The connecting part 23 may be, for example, a tapered plug part whose outer diameter narrows towards the first end 20 side of the main body 18. A plurality of (three in this embodiment) steps 27 for preventing the connecting part 23 from coming off the base part 3 are formed on the peripheral surface of the connecting part 23 at intervals from each other in the axial direction of the connecting part 23 (the direction along the urine introduction channel 22). Each step 27 is formed around the entire circumferential direction of the connecting part 23.

[0074] The discharge portion 24 may include a flange-shaped base portion 28 connected to the connection portion 23 and a discharge port 29 extending from the base portion 28 toward the second end 21 of the main body 18 .

[0075] The base portion 28 may have a first surface 30 on the connecting portion 23 side and a second surface 31 on the opposite side. The base portion 28 may integrally include a circular first portion 32 on the first surface 30 side and a circular second portion 33 formed on the second surface 31 side and having a smaller outer diameter than the first portion 32. As a result, a circular step portion 34 is formed between the first portion 32 and the second portion 33 over the entire circumferential circumference of the base portion 28. The step portion 34 has a side surface 35 and a bottom surface 36, which are formed by the side surface of the second portion 33 and the upper surface of the first portion 32, respectively. A circular protrusion 37 protruding laterally from the side surface 35 is formed at the upper end of the side surface 35 of the step portion 34 over the entire circumferential circumference of the first portion 32.

[0076] The outlet 29 is cylindrical. A curved portion 38 is formed at the open end of the outlet 29 so that the outer diameter increases toward the open end. In other words, the outer peripheral surface of the outlet 29 is curved outward at the open end. This curved portion 38 allows urine to drain easily from the edge of the outlet 29 when it is discharged from the outlet 29, thereby preventing urine from dripping from the outlet 29. This eliminates the need to wipe the edge of the outlet 29 after urine is discharged and also prevents the cap A1 from being contaminated with urine after urine is discharged from the outlet 29. Furthermore, even if urine drips, the base portion 28 has a two-stage structure consisting of the first portion 32 and the second portion 33, so that the urine can be collected on the upper surface of the second portion 33 (the second surface 31 of the base portion 28). 6, the upper surface of second portion 33 is the portion that is covered by lid portion 19 when lid portion 19 is closed, and therefore dripping urine can be prevented from being exposed to the outside. Furthermore, discharge hole 26 in discharge outlet 29 has a tapered shape in which the diameter narrows from the open end (second end portion 21 of main body 18) toward connecting portion 23.

[0077] The lid portion 19 may include a base portion 39 formed in a hollow dome shape, and a plug portion 40 that protrudes from the inner surface of the top of the base portion 39 into the base portion 39 .

[0078] The dome-shaped base portion 39 may include an apex portion, which is the upper end portion, and a base portion, which is the lower end portion. A flange portion 41 is formed at the base portion of the base portion 39, protruding outward from the peripheral surface of the base portion 39. The flange portion 41 is selectively formed from a portion of the base portion of the base portion 39. As a result, the base portion 39 is formed in a cap shape as a whole. A circular groove 42 is formed on the inner side surface of the base portion 39 over the entire circumferential direction of the base portion 39. The groove 42 is formed with a width that allows the aforementioned protrusion 37 to fit into it.

[0079] The plug portion 40 is formed in a cylindrical shape with an opening 43 formed therein, and is formed to be shorter than the height of the base portion 39. In addition, the plug portion 40 is tapered so that the outer diameter narrows toward the tip of the plug portion 40.

[0080] An upwardly protruding, annular film placement portion 44 is formed at the top of base portion 39. An opening 43 is formed in lid portion 19 so that film placement portion 44 and plug portion 40 can pass continuously. A hydrophobic film 45 is disposed in film placement portion 44 so as to close opening 43.

[0081] The hydrophobic film 45 may be, for example, a microporous film that allows air to pass through and prevents liquid from passing through. For example, the diameter (pore size) of the pores formed in the hydrophobic film 45 may be 0.05 μm to 50 μm. The thickness of the hydrophobic film 45 may be 0.01 mm to 2 mm. The hydrophobic film 45 may also be referred to as a hydrophobic filter, since it has the function of selectively removing liquid from within the cap A1. In this case, the film placement section 44 may also be referred to as a filter placement section (film placement sections 61, 65, 83, and 84 and a film placement plate 67, which will be described later, may also be referred to as a filter placement section and a filter placement plate).

[0082] As such a hydrophobic film 45, for example, a known hydrophobic film such as polytetrafluoroethylene (PTFE), an acrylic copolymer, polyethersulfone (PES), or glass fiber can be used.

[0083] The material forming the hydrophobic film 45 may contain an ammonia-decomposing enzyme. This allows the ammonia in the urine to be decomposed by contacting the hydrophobic film 45, thereby reducing the odor of urine that has reached the cap A1.

[0084] Furthermore, the hydrophobic film 45 may contain an acidic agent. Here, "containing an acidic agent" may mean that the hydrophobic film 45 contains the acidic agent as a component, or may mean that the hydrophobic film 45 is immersed in an acidic agent and the acidic agent is attached to the surface of the hydrophobic film 45.

[0085] Examples of acidic agents that can be used include organic acids such as succinic acid, fumaric acid, tartaric acid, citric acid, malic acid, adipic acid, gluconic acid, and lactic acid, as well as salts thereof. This allows the ammonia in the urine to be neutralized by the acidic agent when the urine comes into contact with the hydrophobic film 45, thereby reducing the odor of the urine that has reached the cap A1. The acidic agent may be incorporated into the hydrophobic film 45 in advance, or may be added to the hydrophobic film 45 before inserting the catheter 1 into the urethra.

[0086] A covering member 46 is provided on the top of the base portion 39 so as to cover the hydrophobic film 45. The covering member 46 is formed in a cylindrical shape with a bottom and an outer diameter larger than that of the film-mounting portion 44. The covering member 46 is joined to the top of the base portion 39 around the film-mounting portion 44 so that the hydrophobic film 45 and the film-mounting portion 44 are housed inside the covering member 46. The covering member 46 may be joined to the base portion 39 by, for example, heat welding, an adhesive, or the like.

[0087] Furthermore, a recess 47 is formed in the covering member 46 by selectively recessing a portion of its bottom. In this embodiment, the recess 47 is formed in the center of the circular bottom of the covering member 46. As a result, when the covering member 46 is covered with the hydrophobic film 45, a space corresponding to the recess 47 is formed between a portion of the bottom surface of the covering member 46 and the hydrophobic film 45. In other words, the annular portion of the bottom surface of the covering member 46 surrounding the recess 47 selectively abuts against the hydrophobic film 45. The formation of the space allows air to escape from the catheter 1 more easily.

[0088] Furthermore, the covering member 46 is formed with a plurality of air flow ports 48 that allow air to flow in the thickness direction of the covering member 46. The plurality of air flow ports 48 may be formed in an area facing the recessed portion 47, as shown in FIG.

[0089] The lid 19 is integrally connected to the main body 18 via a hinge mechanism 49. In this embodiment, the hinge mechanism 49 is formed by a living hinge made of resin that is integral with the main body 18 and the lid 19. The hinge mechanism 49 is connected to the base of the base 39 on the side opposite to the flange 41.

[0090] The lid 19 can be closed, for example, by pinching the flange 41, folding the hinge mechanism 49, and pressing the top of the base 39. By pressing the top of the base 39, the plug 40 is inserted into the discharge hole 26, and the ridge 37 and the recess 42 fit together. This locks the lid 19 to the main body 18, closing the discharge hole 26. In this state, the urine introduction channel 22 of the main body 18 and the opening 43 of the lid 19 communicate with each other, as shown in FIG. 6.

[0091] According to this cap A1, because the lid portion 19 is connected to the main body 18 via the hinge mechanism 49, it is not necessary to position the lid portion 19 relative to the discharge hole 26 when closing the lid portion 19. Furthermore, because the portion that blocks the discharge hole 26 is the plug portion 40, the discharge hole 26 can be easily blocked by pushing the lid portion 19 into the discharge hole 26. [Second embodiment] Figures 7 and 8 are cross-sectional views of a cap A2 according to a second embodiment of the present invention, with Figure 7 showing the second lid in a closed state and Figure 8 showing the second lid in an open state. In Figures 7 and 8, components equivalent to those shown in the previous embodiment are given the same reference numerals and their description will be omitted.

[0092] The cap A2 according to this embodiment further includes a second lid portion 92 that airtightly covers the hydrophobic film 45. More specifically, an opening 93 is formed in the covering member 46 of the lid portion 19, and the second lid portion 92 is attached to the covering member 46 in an openable and closable manner so as to close this opening 93. In this case, the flow port 48 may be omitted.

[0093] With this cap A2, as shown in Figure 7, by closing the second lid part 92, it is possible to prevent the odor of urine that has reached the cap A2 from leaking to the outside through the hydrophobic film 45. On the other hand, because the second lid part 92 can be opened and closed freely, the air flowing to the outside through the hydrophobic film 45 is not blocked by leaving the second lid part 92 open as shown in Figure 8 until the urine reaches the cap A2. [Third embodiment] Fig. 9 is a perspective view of a cap A3 according to a third embodiment of the present invention. In Fig. 9, the same reference numerals are used to designate components equivalent to those shown in the above-described embodiments, and the description thereof will be omitted.

[0094] In the cap A3 according to this embodiment, the main body 18 and the lid portion 19 are connected by a string 50 instead of the hinge mechanism 49. The string 50 may be made of a resin that is integral with the main body 18 and the lid portion 19.

[0095] According to this cap A3, the portion that closes the discharge hole is the plug portion 40, so that by pushing the lid portion 19 into the discharge hole , the discharge hole can be easily closed. [Fourth embodiment] Fig. 10 is a perspective view of a cap A4 according to a fourth embodiment of the present invention. Fig. 11 is a bottom view of the lid portion 51 of Fig. 10. Fig. 12 is a side view of the main body 18 of Fig. 10. Fig. 13 is a cross-sectional view taken along line AA of Fig. 10. In Figs. 10 to 13, components equivalent to those shown in the above-described embodiments are given the same reference numerals, and descriptions thereof will be omitted.

[0096] The cap A4 according to this embodiment includes a screw-type lid 51 instead of the lid 19 connected to the main body 18 by the hinge mechanism 49. The lid 51 is dome-shaped, and a helical thread 52 is formed on the inner peripheral surface of the lid 51. In addition, an anti-slip structure 54 consisting of a plurality of ridges 53 is formed on the outer peripheral surface of the lid 51. The plurality of ridges 53 are arranged at intervals around the entire circumferential direction of the lid 51. Each ridge 53 extends in the axial direction of the lid 51 (the direction in which urine is discharged).

[0097] A helical thread 55 that screws onto the thread 52 of the lid 51 is formed on the side surface 35 of the base 28 of the discharge portion 24 of the main body 18. For example, by turning and tightening the lid 51 relative to the main body 18, the plug 40 is inserted into the discharge hole 26, thereby closing the discharge hole 26.

[0098] According to this cap A4, the main body 18 and the lid portion 51 are screwed together by the screw-type lid portion 51, so that the discharge hole 26 can be closed reliably. [Fifth embodiment] Fig. 14 is a perspective view of a cap A5 according to a fifth embodiment of the present invention. Fig. 15 is a side view of a cap A5 according to the fifth embodiment of the present invention. Fig. 16 is a cross-sectional view taken along line AA in Fig. 14. In Figs. 14 to 16, components equivalent to those shown in the above-described embodiments are given the same reference numerals, and descriptions thereof will be omitted.

[0099] In the cap A5 according to this embodiment, the discharge portion 24 does not have a distinction between the base portion 28 and the discharge port 29. The discharge portion 24 is formed in a cylindrical shape connected to the connection portion 23. Unlike the caps A1 to A4 according to the first to fourth embodiments, the open end of the discharge portion 24 has a flat shape with a substantially constant outer diameter. The discharge hole 26 has a tapered shape with a diameter narrowing from the open end of the discharge portion 24 (the second end 21 of the main body 18) toward the connection portion 23.

[0100] The lid portion 56 may include a disk-shaped base portion 57 having an outer diameter larger than that of the discharge portion 24, and a plug portion 58 protruding from the lower surface (the surface facing the discharge hole 26) of the base portion 57. An outer peripheral portion 59 of the base portion 57 is configured to protrude in a flange-like manner outward from the discharge portion 24 when the lid portion 56 is closed.

[0101] The plug portion 58 is formed in a cylindrical shape with an opening 60. The plug portion 58 is tapered so that the outer diameter narrows toward the tip of the plug portion 58.

[0102] An annular film placement portion 61 that protrudes upward is formed on the top surface of the base portion 57. An opening 60 is formed in the lid portion 56 so that the film placement portion 61 and the plug portion 58 pass continuously through. A hydrophobic film 45 is placed in the film placement portion 61 so as to close the opening 60. The film placement portion 61 has an outer diameter larger than that of the hydrophobic film 45.

[0103] A covering member 62 is provided on the film placement section 61 so as to cover the hydrophobic film 45. The covering member 62 is formed in a disk shape having approximately the same outer diameter as the film placement section 61. The covering member 62 is joined to the outer periphery of the film placement section 61 so that its outer periphery contacts the film placement section 61 and its central portion surrounded by the outer periphery contacts the hydrophobic film 45. The covering member 62 may be joined to the film placement section 61 by, for example, heat welding, an adhesive, or the like.

[0104] Furthermore, the covering member 62 is formed with a circulation port 63 that allows air to circulate in the thickness direction of the covering member 62. From the circulation port 63, the hydrophobic film 45 is exposed.

[0105] The lid portion 56 can be closed, for example, by pinching the outer periphery 59 of the base portion 57, folding the hinge mechanism 49, and pressing the upper surface of the base portion 57. Pressing the upper surface of the base portion 57 inserts the plug portion 58 into the discharge hole 26, thereby closing the discharge hole 26. In this state, the urine introduction channel 22 of the main body 18 and the opening 60 of the lid portion 56 communicate with each other, as shown in FIG. 16 .

[0106] According to this cap A5, because the lid portion 56 is connected to the main body 18 via the hinge mechanism 49, it is not necessary to position the lid portion 56 relative to the discharge hole 26 when closing the lid portion 56. Furthermore, because the portion that blocks the discharge hole 26 is the plug portion 58, the discharge hole 26 can be easily blocked by pushing the lid portion 56 into the discharge hole 26. [Sixth embodiment] Fig. 17 is a perspective view of a cap A6 according to a sixth embodiment of the present invention. Fig. 18 is a side view of a cap A6 according to the sixth embodiment of the present invention. Fig. 19 is a cross-sectional view taken along line AA in Fig. 17. In Figs. 17 to 19, components equivalent to those shown in the above-described embodiments are given the same reference numerals, and descriptions thereof will be omitted.

[0107] In the cap A6 according to this embodiment, the opening 60 to be blocked by the hydrophobic film 45 is not formed in the lid portion 56, but is formed so as to be connected to the middle of the urine introduction path 22 of the main body 18. More specifically, an opening 64 is formed so as to penetrate the side wall of the discharge portion 24 of the main body 18.

[0108] The film placement section 65 is formed to protrude from the side wall of the main body 18. More specifically, the film placement section 65 may include a support 66 protruding from the side wall of the main body 18 (discharge section 24) and a film placement plate 67 formed in a flange shape relative to the support 66. The support 66 is formed in a cylindrical shape, and the film placement plate 67 is formed in a disk shape. The opening 64 is formed to pass continuously through the film placement plate 67, the support 66, and the side wall of the main body 18.

[0109] The hydrophobic film 45 is disposed on the film disposition plate 67 so as to cover the opening 64. The film disposition plate 67 has a larger outer diameter than the hydrophobic film 45.

[0110] A covering member 68 is provided on the film placement plate 67 so as to cover the hydrophobic film 45. The covering member 68 is formed in a disk shape having approximately the same outer diameter as the film placement plate 67. The covering member 68 is joined to the outer periphery of the film placement plate 67 so that its outer periphery contacts the film placement plate 67 and its central portion surrounded by the outer periphery contacts the hydrophobic film 45. The covering member 68 may be joined to the film placement plate 67 by, for example, heat welding, an adhesive, or the like.

[0111] Furthermore, the covering member 68 is formed with a circulation port 69 that allows air to circulate in the thickness direction of the covering member 68. From the circulation port 69, the hydrophobic film 45 is exposed. [Seventh embodiment] Fig. 20 is a perspective view of a cap A7 according to a seventh embodiment of the present invention. Fig. 21 is a plan view of a cap A7 according to the seventh embodiment of the present invention. Fig. 22 is a side view of a cap A7 according to the seventh embodiment of the present invention. Fig. 23 is a rear view of a cap A7 according to the seventh embodiment of the present invention. Fig. 24 is a cross-sectional view taken along line AA in Fig. 21. Fig. 25 is a cross-sectional view taken along line BB in Fig. 21. In Figs. 20 to 25, components equivalent to those shown in the above-described embodiments are given the same reference numerals, and descriptions thereof will be omitted.

[0112] In the cap A7 according to this embodiment, the lid portion 70 has a so-called split septum structure. More specifically, the lid portion 70 may include a disk-shaped valve element 72 with an insertion hole (slit 71) formed in the center. The valve element 72 is made of an elastic material. Examples of elastic materials that can be used include latex rubber, isoprene rubber, silicone, and thermoplastic elastomers (e.g., styrene-based elastomers). Such a valve element 72 can be fixed to the open end of the discharge portion 24 of the main body 18 by, for example, insert molding.

[0113] According to this cap A7, the lid portion 70 is formed by a valve body 72 having a slit 71, so that, for example, a urine collection bag or the like can be directly inserted into the cap A7. [Eighth embodiment] Fig. 26 is a perspective view of a cap A8 according to an eighth embodiment of the present invention. Fig. 27 is a side view of a cap A8 according to an eighth embodiment of the present invention. Figs. 28 and 29 are views showing a cross section taken along line AA in Fig. 26, with Fig. 28 being a view seen from diagonally above and Fig. 29 being a view seen from the side. In Figs. 26 to 29, components equivalent to those shown in the above-described embodiments are given the same reference numerals and descriptions thereof will be omitted.

[0114] In the cap A8 according to this embodiment, the lid portion 73 has a so-called duckbill valve structure. More specifically, the lid portion 73 has a pair of inclined valve bodies 74 that extend from the open end of the discharge portion 24 toward the connection hole 25 in a converging manner. The pair of inclined valve bodies 74 contact each other at their tips, and a slit 75 is formed at these tips. The inclined valve bodies 74 are formed of an elastic material. Examples of elastic materials that can be used include latex rubber, isoprene rubber, silicone, and thermoplastic elastomers (e.g., styrene-based elastomers). Such inclined valve bodies 74 can be fixed to the open end of the discharge portion 24 of the main body 18 by, for example, insert molding.

[0115] According to this cap A8, the lid portion 73 is formed by an inclined valve body 74 having a slit 75, so that, for example, a urine collection bag or the like can be directly inserted into the cap A8. [Ninth embodiment] Fig. 30 is a perspective view of a cap A9 according to a ninth embodiment of the present invention. Fig. 31 is a side view of a cap A9 according to the ninth embodiment of the present invention. Figs. 32 and 33 are views showing a cross section taken along line AA in Fig. 30, with Fig. 32 being a view seen from diagonally above and Fig. 33 being a view seen from the side. In Figs. 30 to 33, components equivalent to those shown in the above-described embodiments are given the same reference numerals and their description will be omitted.

[0116] In the cap A9 according to this embodiment, the lid portion 76 is formed in a stick shape. More specifically, the lid portion 76 has a plug portion 77 that is inserted into the discharge hole 26 and a columnar portion 78 that is connected to the plug portion 77. The plug portion 77 has a tapered shape in which the outer diameter narrows toward the tip of the plug portion 77.

[0117] The columnar portion 78 is formed in a cylindrical shape with approximately the same length as the main body 18. An anti-slip structure 80 consisting of a plurality of ridges 79 is formed on part of the side surface of the columnar portion 78. The plurality of ridges 79 are arranged at intervals in the longitudinal direction of the columnar portion 78. Each ridge 79 extends in the circumferential direction of the columnar portion 78.

[0118] The stick-shaped lid portion 76 is integrally connected to the main body 18 via a hinge mechanism 49. In this embodiment, the hinge mechanism 49 is connected to the end of the column portion 78 on the plug portion 77 side, on the opposite side to the anti-slip structure 80.

[0119] According to this cap A9, the lid portion 76 is stick-shaped, so that the lid portion 76 can be easily opened with one hand, for example, by hooking the thumb on the anti-slip structure 80 and pressing the lid portion 76 with the thumb. [Tenth embodiment] Figures 34 and 35 are a perspective view and a side view, respectively, of a cap A10 according to a tenth embodiment of the present invention, showing the cap 56 in an open state. Figures 36 and 37 are a perspective view and a side view, respectively, of a cap A10 according to a tenth embodiment of the present invention, showing the cap 56 in a closed state. In Figures 34 to 37, components equivalent to those shown in the above-described embodiments are designated by the same reference numerals, and descriptions thereof will be omitted.

[0120] In the cap A10 according to this embodiment, a first engagement portion 81 is formed on the peripheral edge of the film placement plate 67, and a second engagement portion 82 is formed on the outer periphery 59 of the disk-shaped base portion 57. The first engagement portion 81 and the second engagement portion 82 engage with each other when the lid portion 56 is closed. This engagement allows the lid portion 56 to be locked to the main body 18.

[0121] Furthermore, for example, if hinge mechanism 49 is biased in the direction in which lid portion 56 opens, film placement plate 67 can be pressed like a button to disengage first engagement portion 81 and second engagement portion 82, and lid portion 56 can be opened by the biasing force of hinge mechanism 49. Because lid portion 56 can be opened without directly touching it, it is possible to reliably prevent urine from getting on hands when opening lid portion 56. [How to fix Hydrophobic Film 45] Next, we will show another embodiment of the method for fixing the hydrophobic film 45. In the above-described embodiment, the hydrophobic film 45 was fixed by covering it with the covering members 46, 62, and 68, but it can also be fixed in other ways as shown in Figures 38A to 38B and 39A to 39D.

[0122] 38A to 38B are diagrams illustrating a first method for fixing hydrophobic film 45. Figs. 39A to 39D are diagrams illustrating a second method for fixing hydrophobic film 45. Figs. 38A to 38B and 39A to 39D will be described with reference to the structure of cap A5 of the fifth embodiment as an example. <First form> First, as shown in Fig. 38A, the integrally molded main body 18 and lid 56, and the hydrophobic film 45 are prepared. The film placement portion 83 is formed, for example, in a circular ring shape that surrounds the opening 60 and has approximately the same outer diameter as the hydrophobic film 45. Next, as shown in Fig. 38B, the disk-shaped hydrophobic film 45 is placed on the circular film placement portion 83, and the hydrophobic film 45 is heat-sealed to the film placement portion 83 from above. This allows the hydrophobic film 45 to be fixed. <Second form> First, as shown in FIG. 39A, the integrally molded main body 18 and lid 56, and the hydrophobic film 45 are prepared. The film placement section 84 is formed, for example, in a cylindrical shape that surrounds the opening 60 and has an inner diameter approximately the same as the outer diameter of the hydrophobic film 45. Next, as shown in FIG. 39B, the hydrophobic film 45 is placed inside the film placement section 84. Next, as shown in FIG. 39C, the side walls (peripheral walls) of the film placement section 84 are heated to make the side walls flexible and are bent inward. As a result, the hydrophobic film 45 is crimped and fixed by the film placement section 84. [How to use Catheter 1 and the effects of Caps A1 to A10] 40 to 42 are diagrams for sequentially explaining how to use the catheter 1. Fig. 43 is a diagram showing the state of the catheter 1 during disinfection.

[0123] Next, with reference to Figures 40 to 43, a method of using the catheter 1 and the effects of wearing the caps A1 to A10 according to the above-described embodiments will be described. In Figures 40 to 43, the caps A1 to A10 according to the above-described embodiment are schematically shown as cap A11. Furthermore, although Figures 40 to 42 show a method for indwelling catheter catheterization as an example, the method of inserting the catheter 1 into the urethra 85 is the same for clean intermittent catheterization (CIC).

[0124] When a patient inserts the catheter 1 into his or her urethra 85 (self-catheterization), first, as shown in Figure 40, the shaft 2 is inserted into the urethra 85 starting from the cap 4. At this time, the catheter 1 can be inserted hygienically by grasping the shaft 2 via the sleeve 12. When the side hole 5 at the tip of the shaft 2 reaches the bladder 86, urine 87 in the bladder 86 is guided into the urinary catheterization lumen 7 (see Figures 2A and 2B) via the side hole 5. The urine 87 guided into the urinary catheterization lumen 7 moves downstream through the urination base 13 and reaches the urine introduction channel 22 (not shown) of the cap A11.

[0125] After the patient confirms, for example visually, that the urine 87 has reached the cap A11, they insert the catheter 1 a little further, as shown in Figure 41. The reason for this is that, as shown in Figure 40, even if the side hole 5 of the catheter 1 has reached the inside of the bladder 86, the balloon 6 may be positioned inside the urethra 85, and inflating the balloon 6 in that case could damage the urethra 85.

[0126] Thereafter, sterile water is injected from the balloon base 14 to inflate the balloon 6 with the sterile water, as shown in Figure 42. This fixes the balloon 6 within the bladder 86, preventing the shaft 2 from falling out and leaving the catheter 1 in the bladder 86. Thereafter, urine 87 collected in the bladder 86 can be discharged by connecting a urine collection bag or the like to the cap A11.

[0127] As described above, the caps A1 to A11 described above have openings 43, 60, and 64, and the hydrophobic film 45 is formed in the openings 43, 60, and 64. This allows air inside the catheter 1 to escape to the outside while the catheter 1 is inserted into the urethra 85, so that after the tip of the catheter 1 reaches the bladder 86 (see FIG. 40), urine 87 inside the bladder 86 can be smoothly guided to the caps A1 to A11. Meanwhile, urine 87 discharged from the bladder 86 is blocked by the hydrophobic film 45, so that the urine 87 can be retained in the urine introduction path 22 of the caps A1 to A11. As a result, after confirming that the urine 87 has reached the caps A1 to A11, the next task can be carried out at a leisurely pace.

[0128] For example, when performing indwelling catheterization as shown in Figures 40 to 42, after confirming that urine 87 has reached the catheter 1 in the procedure shown in Figure 40, the catheter 1 can be inserted further as shown in Figure 41 in a calm manner. As a result, the catheter 1 can be inserted calmly to the appropriate position, allowing the balloon 6 to be positioned properly. This prevents the balloon 6 from being inflated in the urethra 85. It also prevents the catheter 1 from being inserted too far into the bladder 86, which can prevent the tip of the catheter 1 from contacting the bladder wall and damaging the bladder wall when the bladder 86 contracts while the catheter 1 is indwelling.

[0129] On the other hand, even when performing clean intermittent catheterization (CIC), it is worthwhile to use the caps A1 to A11 described above. In this case, by confirming that urine 87 has reached the toilet bowl or the like using the procedure shown in Figure 40, and then opening the lids 19, 51, 56, 70, 73, and 76 of the caps A1 to A11 toward the toilet bowl or the like, it is possible to prevent the urine 87 from splashing. As a result, it is possible to prevent the surroundings of the toilet bowl or the like from being contaminated with urine 87.

[0130] Furthermore, after self-catheterization is completed, the catheter 1 must be disinfected by placing it in a case 89 containing a disinfectant 88, as shown in Figure 43. Even during this disinfection, the caps A1 to A11 described above allow the air inside the shaft 2 to escape to the outside via the hydrophobic film 45. As a result, even when the caps are still attached to the catheter 1, the disinfectant 88 can be distributed throughout the inside of the shaft 2 via the side holes 5. As a result, the catheter 1 can be kept clean. [Eleventh embodiment] Fig. 44 is a perspective view of cap B1 according to an eleventh embodiment of the present invention. Fig. 45 is a cross-sectional view taken along line AA in Fig. 44. Fig. 46 is a perspective view of cap B1 in Fig. 45. Fig. 47 is a diagram illustrating the internal structure of lid portion 111 of cap B11 in Fig. 44. In Figs. 44 to 47, in order to clarify the features of cap B1, a covering member 301 (described below) that covers the top surface of lid portion 111 is omitted. In Figs. 44 to 47, components equivalent to those shown in the above-described embodiments are designated by the same reference numerals, and their description will be omitted.

[0131] In the cap B1 according to this embodiment, instead of the cylindrical outlet 29 in the outlet part 24, the bowl-shaped base part 28 also serves as the outlet 29. Therefore, urine passing through the connection hole 25 is discharged via the outlet hole 26 formed by the inner wall surface of the base part 28.

[0132] The cap B1 further includes a lid portion 111, the interior of which is divided into a plurality of spaces, instead of the lid portion 19. More specifically, the lid portion 111 includes a base portion 113 and a partition portion 118.

[0133] The base portion 113 is formed in a cylindrical shape with a first end 119 and a second end 120 that are open, and has an internal space 112. The first end 119 of the base portion 113 may be on the upstream side during urine excretion (the connection portion with the main body 18), and the second end 120 of the base portion 113 may be on the downstream side during urine excretion.

[0134] The partitions 118 divide the space 112 into a plurality of spaces 114 to 117 when the base portion 113 is viewed in the axial direction. The partitions 118 may include partition plates installed between a plurality of locations on the inner circumferential surface of the base portion 113. In this embodiment, the partitions (partition plates) 118 include cross-shaped partition plates, and the space 112 is divided into four spaces 114 to 117. Specifically, by dividing the base portion 113, which is circular in plan view, by the cross-shaped partitions 118, the space 112 is divided into four equal parts, and four mutually congruent fan-shaped spaces 114 to 117 are formed. The four spaces 114 to 117 may include a first space 114, a second space 115, a third space 116, and a fourth space 117. Of course, if the partition 118 is, for example, a T-shaped partition plate, the space 112 may be divided into three spaces, or two spaces, or five or more spaces.

[0135] The hydrophobic film 45 is formed at the second end 120 of the base portion 113 so as to cover at least two of the multiple spaces 114-117. In this embodiment, the hydrophobic film 45 is formed so as to span all four spaces 114-117. The hydrophobic film 45 is supported by cross-shaped partitions 118. Therefore, each of the spaces 114-117 is closed by the hydrophobic film 45 on the top surface side of the base portion 113. In other words, when the cap B1 is turned upside down, the base portion 113 has the spaces 114-117 defined by a side wall 121 formed by the peripheral wall of the base portion 113 and the partitions 118 and a bottom wall 122 formed by the hydrophobic film 45. Because the bottom wall 122 of each of the spaces 114-117 is closed by the hydrophobic film 45, they may also be referred to as a first chamber 114, a second chamber 115, a third chamber 116, and a fourth chamber 117. Note that, as long as at least two of the multiple spaces 114 to 117 are covered with the hydrophobic film 45, the remaining spaces do not need to be covered with the hydrophobic film 45. For example, the bottom walls 122 of the first space 114 and the second space 115 may be formed with the hydrophobic film 45, and the bottom walls 122 of the third space 116 and the fourth space 117 may be formed with a plastic material that extends integrally from the second end 120 of the base portion 113.

[0136] Furthermore, the volume of each of the spaces 114 to 117 is preferably 50% or more of the volume of the urinary drainage lumen 7 (see FIGS. 2A and 2B) of the shaft 2. The volume of each of the spaces 114 to 117 can be changed as appropriate, for example, by adjusting the height of the partition 118 (partition wall).

[0137] Next, the effects of cap B1 will be described. First, like caps A1 to A11, cap B1 is provided with hydrophobic film 45, so when disinfecting catheter 1 shown in Fig. 43, air inside shaft 2 can be released to the outside via hydrophobic film 45. As a result, even when cap B1 is attached to catheter 1, disinfectant 88 can be distributed throughout shaft 2 via side hole 5.

[0138] On the other hand, after the catheter 1 is removed from the disinfection case 89, the disinfectant 88 in the shaft 2 of the catheter 1 does not completely drain, and some of it remains. The remaining disinfectant 88 may flow down into the cap B1 due to its own weight. As a result, the disinfectant 88 may adhere to the hydrophobic film 45 inside the cap B1, causing the hydrophobic film 45 to become clogged. For example, if the disinfectant 88 is a relatively viscous liquid such as glycerin with added benzalkonium chloride (glycerin BC liquid), the hydrophobic film 45 is likely to become clogged.

[0139] Therefore, according to this cap B1, the lid portion 111 is divided into a plurality of spaces 114 to 117, and the bottom wall 122 of each of the spaces 114 to 117 is formed of the hydrophobic film 45. As a result, even if the disinfectant 88 flows down into the cap B1, by tilting the cap B1 obliquely, for example, as shown in FIG. 48, it is possible to prevent the disinfectant 88 from flowing into all of the spaces 114 to 117. As a result, clogging of the hydrophobic film 45 (bottom wall 122) can be prevented in any of the spaces 114 to 117, and therefore good breathability of the hydrophobic film 45 can be ensured even after disinfection.

[0140] Furthermore, in the cap B1, the space 112 is divided into four equal parts, and the volumes of the spaces 114 to 117 are relatively large (compared to, for example, the cap B2 described below). Therefore, even if the disinfectant 88 flows into the spaces 114 to 117, the influence of the surface tension of the disinfectant 88 in the spaces 114 to 117 can be reduced. As a result, by turning the cap B1 upside down as shown in FIG. 49, the disinfectant 88 in the spaces 114 to 117 can be quickly removed. [Twelfth embodiment] Fig. 50 is a perspective view of cap B2 according to a twelfth embodiment of the present invention. Fig. 51 is a cross-sectional view taken along line AA in Fig. 50. Fig. 52 is a perspective view of cap B2 in Fig. 51. Fig. 53 is a diagram for explaining the internal structure of lid portion 211 of cap B2 in Fig. 50. In Figs. 50 to 53, in order to clarify the features of cap B2, covering member 301 (described below) that covers the top surface of lid portion 211 is omitted. In Figs. 50 to 53, configurations equivalent to those shown in the above-described embodiments are given the same reference numerals, and descriptions thereof will be omitted.

[0141] In cap B2 according to this embodiment, instead of a cylindrical outlet 29 in discharge part 24, bowl-shaped base part 28 also serves as outlet 29. Therefore, urine passing through connection hole 25 is discharged via discharge hole 26 formed by the inner wall surface of base part 28.

[0142] The cap B2 further includes a lid portion 211, the interior of which is divided into a plurality of spaces, instead of the lid portion 19. More specifically, the lid portion 211 includes a base portion 213 and a partition portion 218.

[0143] The base portion 213 is formed in a cylindrical shape with a first end 219 and a second end 220 that are open, and has an internal space 212. The first end 219 of the base portion 213 may be on the upstream side during urine excretion (the connection portion with the main body 18), and the second end 220 of the base portion 213 may be on the downstream side during urine excretion.

[0144] The partition 218 divides the space 212 into a plurality of spaces 214, 215 when viewed in the axial direction of the base 213. The partition 218 may include a partition cylinder that is erected in the space 212 and is formed in a cylindrical shape with an axial direction that is the same as the axial direction of the base 213. The partition cylinder separates the space inside and the space outside the wall portion into independent spaces by a cylindrical wall portion. In this embodiment, the partition (partition cylinder) 218 ​​includes a cylindrical partition cylinder, and the space 212 is divided into two spaces 214, 215. Specifically, the base 213, which is circular in plan view, is divided by the cylindrical partition 218, so that the space 212 is divided into a first space 214 as a cylindrical space inside the partition 218 and a second space 215 as an annular space outside the partition 218. Of course, the partition portion 218 may be, for example, a rectangular cylindrical shape or a triangular cylindrical shape. The partition portion 218 is connected to the base portion 213 by linear support portions 216 that extend from the peripheral wall of the base portion 213 toward the inside in the circumferential direction of the base portion 213. In this embodiment, the four support portions 216 extending in all directions from the partition portion 218 support the partition portion 218.

[0145] The hydrophobic film 45 is formed at the second end 220 of the base portion 213 so as to cover the two spaces 214, 215. The hydrophobic film 45 is supported by the partition portion 218 and the support portion 216. Therefore, each of the spaces 214, 215 is closed by the hydrophobic film 45 on the top surface side of the base portion 213. In other words, when the cap B2 is turned upside down, a first space 214 is formed in the base portion 213, the first space 214 being partitioned by a side wall 221 formed by the inner peripheral wall of the partition portion 218 and a bottom wall 222 formed by the hydrophobic film 45. In addition, a second space 215 is formed by a side wall 223 formed by the outer peripheral wall of the partition portion 218, a side wall 225 formed by the peripheral wall of the base portion 213, and a bottom wall 224 formed by the hydrophobic film 45. The spaces 214 and 215 may be referred to as a first chamber 214 and a second chamber 215, respectively, since the bottom walls 222 and 224 are closed with a hydrophobic film 45.

[0146] Furthermore, the volume of each of the spaces 214, 215 is preferably 50% or more of the volume of the urinary drainage lumen 7 (see FIGS. 2A and 2B) of the shaft 2. The volume of each of the spaces 214, 215 can be changed as appropriate, for example, by adjusting the height of the partition part 218 (partition cylinder).

[0147] According to this cap B2, the lid portion 211 is divided into a plurality of spaces 214, 215, and the bottom walls 222, 224 of each of the spaces 214, 215 are formed of the hydrophobic film 45. As a result, even if the disinfectant 88 flows down into the cap B2, by tilting the cap B2 at an angle, it is possible to prevent the disinfectant 88 from flowing into the first space 214, for example. As a result, clogging of the hydrophobic film 45 (bottom wall 222) can be avoided at least in the first space 214, and therefore good breathability of the hydrophobic film 45 can be ensured even after disinfection. [Thirteenth embodiment] Fig. 54 is a perspective view of cap B3 according to a thirteenth embodiment of the present invention. Fig. 55 is a perspective view of cap B3 according to the thirteenth embodiment of the present invention. Fig. 56 is a plan view of cap B3 according to the thirteenth embodiment of the present invention. Fig. 57 is a side view of cap B3 according to the thirteenth embodiment of the present invention. Fig. 58 is a cross-sectional view taken along line AA in Fig. 56. Fig. 59 is an exploded view of cap B3 according to the thirteenth embodiment of the present invention. Furthermore, in Figs. 54 to 59, components equivalent to those shown in the above-described embodiments are designated by the same reference numerals, and descriptions thereof will be omitted.

[0148] The lid portion 111 of the cap B3 is provided with a cap-shaped covering member 301 that covers the top surface of the base portion 113. The covering member 301 covers and protects the hydrophobic film 45, and therefore may also be referred to as a protective member. The covering member 301 is formed in an annular shape having a top wall portion 302. On the opposite side of the covering member 301 from the top wall portion 302 is an open connection portion 303.

[0149] A circular groove 304 is formed on the outer side surface of the second end 120 of the base portion 113 over the entire circumferential direction of the base portion 113. The covering member 301 can be fixed to the base portion 113 by fitting the groove 304 into the connecting portion 303.

[0150] Additionally, covering member 301 has flange portion 305 that protrudes outward from the annular portion. A patient can open lid portion 111 by hooking their thumb on flange portion 305, for example.

[0151] According to cap B3, flange 305 for opening and closing lid 111 is spaced apart from opening and closing position 306 of lid 111 in cap B3 (in this embodiment, the connection position between first end 119 of base 113 and second end 21 of main body 18). For example, flange 305 is spaced apart from opening and closing position 306 by the height of base 113. This makes it possible to prevent urine from coming into contact with hands when opening lid 111 to discharge urine.

[0152] Note that the same effect can be achieved by using a protrusion that selectively protrudes outward from the annular portion of the covering member 301 instead of the flange portion 305. For example, in this embodiment, the above effect is achieved by the hat-shaped covering member 301 having the flange portion 305, but the same effect can also be achieved by using a cap-shaped covering member 301. [Variations of the covering member 301] Next, variations of the covering member 301 of the cap B3 will be described with reference to Figures 60 to 68. The covering member 301 may be the following covering members 311, 321, and 331. The covering member 301 shown in Figures 54 to 59 above may be covering member 311. (1st form) Figure 60 is a diagram showing a first form of covering member 311 of the cap of Figure 55. Figure 61 is a cross-sectional view showing the AA cross section of Figure 60. Figure 62 is a cross-sectional view showing the AA cross section of Figure 60.

[0153] The covering member 311 is a member that protects the hydrophobic film 45 and ensures air circulation between the inside and outside of the cap B3. The covering member 311 is formed in an annular shape with a top wall portion 312. The side of the covering member 311 opposite the top wall portion 312 is an open connection portion 313. The covering member 311 may be cylindrical. The covering member 311 has a space 314 that is closed on one side by the top wall portion 312. The hydrophobic film 45 is housed in the space 314 while being covered by the top wall portion 312.

[0154] The covering member 311 has a flange portion 315 that protrudes outward from its outer circumferential surface. The flange portion 315 is annular and formed over the entire outer circumferential surface of the covering member 311.

[0155] Top wall 312 of covering member 311 has a plain surface with no holes formed in its flat upper surface 317. Here, the term "plain surface" may mean that no openings for communication with space 314 are formed in upper surface 317 of top wall 312, and that upper surface 317 is entirely made of the material that constitutes covering member 311.

[0156] Circumferential surface 318 of covering member 311 is formed with circulation ports 316 that ensure air circulation between the inside and outside of space 314. When covering member 311 is divided into a top wall portion 312 side and a connecting portion 313 side at flange portion 315 as a boundary, circulation ports 316 are formed on the top wall portion 312 side with respect to flange portion 315. Circumference ports 316 are formed horizontally along upper surface 317 of top wall portion 312, and may also be referred to as horizontal holes that create a lateral air flow. A plurality of circulation ports 316 are formed at intervals around the circumferential direction of covering member 311.

[0157] According to the covering member 311, the hydrophobic film 45 is contained in the space 314 inside the covering member 311, so that the hydrophobic film 45 cannot be directly touched with fingers or the like. This protects the hydrophobic film 45. Furthermore, according to the covering member 311, the upper surface 317 of the top wall portion 312 is completely closed, so that even if water hits the cap B3 when cleaning the catheter 1, for example, contact between the water and the hydrophobic film 45 can be prevented. This also protects the hydrophobic film 45 from water pressure. (2nd form) Figure 63 is a diagram showing a second form of covering member 321 of the cap of Figure 55. Figure 64 is a cross-sectional view showing the AA cross section of Figure 63. Figure 65 is a cross-sectional view showing the AA cross section of Figure 63. In Figures 63 to 65, components equivalent to those of covering member 311 described above are given the same reference numerals, and descriptions thereof will be omitted.

[0158] The covering member 321 includes a top wall 322 having a top surface 323 with holes formed therein, instead of the top wall 312 having a plain surface (top surface 317). A plurality of circulation ports 324, 325 are formed in the top surface 323. The circulation ports 324, 325 are formed vertically through the top wall 322 in the thickness direction, and may also be referred to as vertical holes that form airflow in the vertical direction. The circulation ports 324, 325 may include a first circulation port 324 and a second circulation port 325 that have different diameters.

[0159] A plurality of first flow ports 324 having a relatively small diameter are formed in the center of the top wall portion 322. A second flow port 325 having a diameter relatively larger than that of the first flow ports 324 may be formed so as to surround the first flow ports 324.

[0160] According to the covering member 321, the hydrophobic film 45 is housed in the space 314 inside the covering member 321, so that the hydrophobic film 45 cannot be directly touched with fingers, etc. This makes it possible to protect the hydrophobic film 45. (3rd form) Figure 66 is a diagram showing a third mode of covering member 331 of the cap of Figure 55. Figure 67 is a cross-sectional view showing the AA cross section of Figure 66. Figure 68 is a cross-sectional view showing the AA cross section of Figure 66. In Figures 66 to 68, components equivalent to those of covering member 311 described above are given the same reference numerals, and descriptions thereof will be omitted.

[0161] The covering member 331 includes a top wall portion 332 having an upper surface 333 with holes formed therein, instead of the top wall portion 312 having a plain surface (top surface 317). A plurality of circulation ports 334 are formed in the upper surface 333. The circulation ports 334 are formed vertically through the top wall portion 332 in the thickness direction, and may also be referred to as vertical holes that create a vertical air flow. The plurality of circulation ports 334 have the same diameter. The plurality of circulation ports 334 are formed in a regular arrangement in the center of the top wall portion 332.

[0162] According to the covering member 331, the hydrophobic film 45 is housed in the space 314 inside the covering member 331, so that the hydrophobic film 45 cannot be directly touched with fingers, etc. This makes it possible to protect the hydrophobic film 45. [Performance of Hydrophobic Film 45] In the above embodiment, examples of the material of the hydrophobic film 45 and physical quantities such as thickness and pore size are shown.

[0163] For example, the hydrophobic film 45 may be made of a known hydrophobic film material such as polytetrafluoroethylene (PTFE), acrylic copolymer, polyethersulfone (PES), glass fiber, etc. Also, for example, the diameter (pore size) of the pores formed in the hydrophobic film 45 may be 0.05 μm to 50 μm. Also, the thickness of the hydrophobic film 45 may be 0.01 mm to 2 mm.

[0164] Furthermore, it is preferable that the hydrophobic film 45 has an air permeability (Gurley value) measured in accordance with JIS P 8117 (Gurley method) of 0.1 seconds to 500 seconds / 100 mL, and a water pressure resistance measured in accordance with JIS L 1092-B (high water pressure method) of 0.1 kPa or more (more preferably 0.1 kPa to 500 kPa).

[0165] According to this configuration, even if the caps A1 to A11 and B1 to B3 are used for a long period of time, the water repellency, breathability, pressure resistance, and long-term water repellency of the hydrophobic film 45 can be maintained.

[0166] Water repellency is a physical property that indicates the difficulty of a disinfectant (the same as disinfectant 88) permeating into hydrophobic film 45 (ease of repelling the disinfectant) when the disinfectant is dropped onto hydrophobic film 45, and can be evaluated visually. For example, if the disinfectant dropped onto the surface of hydrophobic film 45 maintains a spherical shape on the surface of hydrophobic film 45 due to surface tension, it can be said that the water repellency is high.

[0167] Furthermore, the long-term water repellency is a physical property that indicates the resistance of the disinfectant to infiltrating the hydrophobic film 45 (ease of repelling the disinfectant) when the hydrophobic film 45 is in contact with the disinfectant for a long period of time, and can be evaluated visually. For example, if it can be visually confirmed that the surface of the hydrophobic film 45 is not covered with the disinfectant after exposing the hydrophobic film 45 to the disinfectant for about one month, it can be said that the long-term water repellency is high.

[0168] Pressure resistance is a physical property that indicates, for example, the resistance to leakage of liquid through the hydrophobic film 45 when liquid pressure is applied to the hydrophobic film 45, and can be evaluated visually. The following method can be given as an example of an evaluation method. For example, a catheter 1 with caps A1 to A11 and B1 to B3 attached is placed in a case 89 containing a disinfectant 88. When the catheter 1 is placed in the case 89, or when the case 89 is folded if it has a bellows structure for folding, positive pressure is generated inside the case 89. If it is observed that the disinfectant 88 penetrates the hydrophobic film 45 and emerges as particles on the opposite side, the pressure resistance can be said to be relatively low. On the other hand, if it is observed that the disinfectant 88 does not emerge on the opposite side of the hydrophobic film 45 under positive pressure and the surface of the hydrophobic film 45 remains dry, the pressure resistance can be said to be high.

[0169] Breathability is a physical property that indicates, for example, whether urine 87 in bladder 86 can be smoothly guided to caps A1-A11 and B1-B3, and can be evaluated visually. For example, when catheter 1 is inserted into one's urethra 85, if urine flows continuously from bladder 86 and reaches caps A1-A11 and B1-B3, it can be said that breathability is high. On the other hand, if urine reaches caps A1-A11 and B1-B3 but the flow is intermittent dripping, it can be said that breathability is not high.

[0170] Then, a hydrophobic film 45 having a thickness of 10 μm to 2 mm, an air permeability of 0.1 seconds to 500 seconds / 100 mL, and a water pressure resistance of 0.1 kPa or more was attached to a cap (any of caps A1 to A11 and B1 to B3) and catheter 1 was repeatedly used and disinfected.It was confirmed that the water repellency, breathability, pressure resistance, and long-term water repellency could be maintained even after more than two months had passed.

[0171] Although the embodiment of the present invention has been described above, the present invention can be embodied in other forms.

[0172] For example, in the caps A1 to A11 and B1 to B3 according to the above-described embodiments, the arrival of urine at the caps A1 to A11 and B1 to B3 can be easily confirmed visually by forming the caps A1 to A11 and B1 to B3 from a translucent resin, by incorporating a substance that changes color when exposed to water into the material of the caps A1 to A11 and B1 to B3, or by forming a grained finish on the inner surface of the urine inlet channel 22.

[0173] Instead of or in addition to these features, for example, as shown in FIG. 69, the caps A1 to A11 and B1 to B3 may be provided with a detection means 90 and a transmission means 91. For example, the detection means 90 may be a device (e.g., an optical device such as a photointerrupter) that can detect the arrival of urine without coming into contact with the urine. The transmission means 91 may be any device that can transmit urine arrival information based on detection by the detection means 90. For example, the transmission means 91 may be a wireless communication device that wirelessly transmits urine arrival information 87 to a mobile terminal such as a tablet or a personal computer.

[0174] By providing detection means 90 and transmission means 91 in this manner, various pieces of information can be obtained depending on the type of transmission means 91. For example, if transmission means 91 is a sounding means, the arrival of urine can be easily confirmed audibly, and if transmission means 91 is a vibration means, the arrival of urine can be easily confirmed by skin sensation. Furthermore, if transmission means 91 is a wireless transmission means, medical personnel and the patient themselves can indirectly obtain objective information as to whether catheter 1 has been inserted correctly.

[0175] 70, an extension attachment 94 may be connected to the connection hole 25 of the main body 18. The extension attachment 94 is formed in a cylindrical shape having a connection side end 95 that is connected to the connection hole 25 and a discharge side end 96 on the opposite side. The extension attachment 94 is formed in a tapered shape that gradually widens in diameter toward the discharge side end 96. The extension attachment 94 extends the urine introduction path 22, and a urine collection bag can be connected to it while the caps A1 to A11 and B1 to B3 are attached.

[0176] In addition, various design modifications can be made within the scope of the claims.

[0177] This application corresponds to Patent Application No. 2020-076920 filed with the Japan Patent Office on April 23, 2020, the entire disclosure of which is incorporated herein by reference. [Explanation of symbols]

[0178] 1: Catheter 2: Shaft 3: Base 4: Cap 5: Side hole 6: Balloon 7: Catheterization lumen 8: Balloon lumen 9: Peripheral surface 10: Rib 11: Boundary 12: Sleeve 13: Base for urination 14: Balloon base 15: Check valve 16 :Urine introduction tract 17:Water introduction channel 18: Main body 19: Lid 20: First end 21:Second end 22 :Urine introduction tract 23: Connection part 24: Discharge section 25: Connection hole 26: Discharge hole 27 :Double part 28: Base part 29: Outlet 30: 1st page 31:Second side 32: 1st part 33:Second part 34 :Double part 35: Side 36: Bottom 37: Convex strip 38: Curve section 39: Base part 40: Plug part 41: Flange part 42: Concave line 43: Open hole 44: Film placement section 45: Hydrophobic film 46: Covering material 47: Recess 48: Distribution port 49: Hinge mechanism 50: String 51: Lid 52: Thread 53: Convex strip 54: Anti-slip structure 55:Thread 56: Lid 57: Base part 58: Plug part 59: Outer periphery 60: Open hole 61: Film placement section 62: Covering material 63: Distribution port 64: Open hole 65: Film placement section 66:Support 67: Film placement board 68: Covering material 69: Distribution port 70: Lid 71: Slit 72: Valve body 73: Lid 74: Inclined valve body 75: Slit 76: Lid 77: Plug part 78: Columnar part 79: Convex strip 80: Anti-slip structure 81: First engagement portion 82: Second engagement portion 83: Film placement section 84: Film placement section 85: Urethra 86: Bladder 87 :Urine 88: Disinfectant 89: Case 90: Detection method 91: Means of communication 111: Lid 112: Space 113: Base part 114: 1st space 115:Second space 116:Third space 117: 4th space 118: Partition 119: (Base portion) First end 120: (Base part) Second end 121: (space) side wall 122: (Space) Bottom wall 211: Lid 212: Space 213: Base part 214: 1st space 215:Second space 216: Support part 218: Partition 219: (Base part) First end 220: (base part) second end 221: (space) side wall 222: (space) bottom wall 223: (space) side wall 224: (Space) Bottom wall 225: (space) side wall 301: Covering material 302: Ceiling wall 303: Connection 304: Groove 305: Flange part 306: Opening and closing position 311: Covering material 312: Ceiling wall 313: Connection 314:Space 315: Flange part 316: Distribution port 317: (Ceiling wall part) top surface 318: (Covering member) Peripheral surface 321: Covering materials 322: Ceiling wall 323: (Ceiling wall part) top surface 324: 1st distribution port 325:Second distribution port 331: Covering material 332: Ceiling wall 333: (Ceiling wall part) top surface 334: Distribution port A1: Cap A2: Cap A3: Cap A4: Cap A5: Cap A6: Cap A7: Cap A8: Cap A9: Cap A10: Cap A11: Cap B1: Cap B2: Cap B3: Cap

Claims

1. a main body including a urine introduction passage including a connection hole connected to a urethral catheter and a discharge hole for discharging urine; a lid portion having a cylindrical portion with a first end portion on the discharge hole side and a second end portion on the opposite side, the lid portion opening and closing the discharge hole; A partition portion that divides the cylindrical portion of the lid portion into a plurality of spaces; a hydrophobic film formed at the second end of the lid portion so as to close at least two of the spaces.

2. The urinary catheter cap according to claim 1 , wherein the partition portion includes a partition plate bridged between a plurality of positions on the inner circumferential surface of the cylindrical portion of the lid portion.

3. the partition plate includes a cross-shaped partition plate that divides the cylindrical portion of the lid portion into four spaces, The urinary catheter cap according to claim 2 , wherein the hydrophobic film is formed so as to span all of the four spaces.

4. 4. The urinary catheter cap according to claim 3, wherein the cylindrical portion of the lid portion, which is circular in plan view, is divided into four equal parts by the cross-shaped partition plates, thereby forming four mutually congruent fan-shaped spaces.

5. 5. The urinary catheter cap according to claim 3, wherein the hydrophobic film is supported by the cross-shaped partition plate.

6. the lid portion includes a covering member formed on the second end of the cylindrical portion of the lid portion so as to cover the hydrophobic film; 6. The urinary catheter cap according to claim 1, wherein the covering member has a protrusion that protrudes outward from a side wall thereof.

7. the protrusion is selectively formed from a part of the outer periphery of the covering member, The urinary catheter cap according to claim 6, wherein the covering member is formed in a cap shape as a whole.

8. The urinary catheter cap according to claim 6, wherein the protrusion includes an annular flange formed around the entire outer periphery of the covering member.

9. the covering member includes a top wall portion that covers the hydrophobic film and has an upper surface that is a plain surface without holes formed therein; A urethral catheter cap according to any one of claims 6 to 8, wherein a side wall of the covering member has a ventilation port formed in a lateral direction along the upper surface of the top wall portion to ensure the circulation of air between the inside and outside of the covering member.

10. The urinary catheter cap according to any one of claims 6 to 9, wherein the covering member is configured to accommodate the hydrophobic film therein, and the hydrophobic film is sandwiched and fixed between the covering member and the lid portion.

11. The urinary catheter cap according to any one of claims 1 to 10, wherein the lid portion is connected to the main body via a hinge mechanism so as to be able to open and close freely.

12. The urinary catheter cap according to any one of claims 1 to 11, wherein the main body is formed from a material containing a substance having antibacterial properties.

13. The urinary catheter cap according to any one of claims 1 to 12, wherein the main body is formed of a translucent material containing a substance that changes color when exposed to water.

14. The urethral catheter cap according to any one of claims 1 to 13, wherein an inner surface of the urine introduction channel of the main body is textured.

15. a detection means for detecting that urine has reached the urine inlet channel; The urethral catheter cap according to any one of claims 1 to 14, further comprising a transmitting means for transmitting information about urine arrival based on detection by the detecting means.

16. The urinary catheter cap according to any one of claims 1 to 15, wherein the hydrophobic film is formed from a material containing an ammonia-decomposing enzyme.

17. The urinary catheter cap according to any one of claims 1 to 15, wherein the hydrophobic film contains an acidic agent.

18. the hydrophobic film has a thickness of 0.01 mm to 2 mm; The air permeability (Gurley value) measured in accordance with JIS P 8117 (Gurley method) is 0.1 seconds to 500 seconds / 100 mL, The urethral catheter cap according to any one of claims 1 to 17, wherein the water pressure resistance measured in accordance with JIS L 1092-B (high water pressure method) is 0.1 kPa or more.

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