Cap for medical device

Abstract

To provide a cap for a medical device, the cap being capable of preventing attachment of urine to a periphery of a drain hole.SOLUTION: A cap for a medical device 100 includes a connection plug body part 10 formed with a flow path 14 penetrating from a proximal end portion 12 formed so as to be connectable to an external member to an opening 13 opposite to the proximal end portion 12, and a lid part 30 provided with a seal part 33 for closing the opening part 13. The connection plug body part 10 includes a body side facing surface 10A facing the lid part 30 when the lid part 30 closes the opening part 13. The opening part 13 is formed with a spout 16 projecting from the body side facing surface 10A.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cap for a medical instrument that functions as an external opening and closing valve for a medical instrument that is indwelled in the human body, such as a urethral catheter. [Background technology]

[0002] Conventionally, there is known a medical instrument cap that functions as an external opening and closing valve for a urethral catheter for the purpose of urination management (see, for example, Patent Document 1). This type of medical instrument cap is connected to a urethral catheter and worn by the user, and when the lid of the medical instrument cap is opened during urination, the air remaining in the urethral catheter is expelled and then urine begins to be discharged. At this time, the urine is pushed out by the amount of urine discharged and the contraction pressure of the bladder, and is discharged from the outlet of the medical instrument cap to the outside of the body.

[0003] In addition, because urethral catheters are used by users to place them themselves and to urinate, there has been a demand for urethral catheters that can be easily operated by users who have difficulty operating them due to problems with manual dexterity, such as those with cerebrovascular disorders or spinal cord injuries. To solve this problem, a medical device cap has been proposed that uses magnetic attraction to assist in closing the lid. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-206370 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the medical instrument cap according to the above-mentioned conventional technology, when urine is discharged from the outlet formed at the tip of the medical instrument cap, the urine may run down the surface of the magnet built into the tip of the medical instrument cap. The amount of urine discharged is limited by the thickness of the lumen of the urethral catheter, but the amount of urine discharged is significantly different between the case of using a 22Fr (7.3 mm) urethral catheter and the case of using a 12Fr (4.0 mm) urethral catheter. When a large amount of urine is discharged using a 22Fr urethral catheter or when the outlet of the medical instrument cap is facing downward, the flow of urine has momentum, so that urine can be discharged without adhering to the area around the outlet of the medical instrument cap, but when the amount of urine discharged decreases and the momentum weakens, urine may adhere to the area around the outlet. If the medical instrument cap is continued to be used with urine attached to the magnet, the rust caused by the rust on the magnet or dried and crystallized urine can become trapped in the gap between the body and lid of the medical instrument cap, causing the lid to not close properly and causing urine to leak from the outlet.

[0006] Also, if urine remains around the drainage port, it could cause a foul odor.

[0007] An object of the present invention is to provide a cap for a medical instrument which overcomes the problems associated with the conventional techniques described above and which is capable of preventing urine from adhering to the periphery of the drainage opening. [Means for solving the problem]

[0008] The present invention provides a cap for a medical instrument, comprising a connection plug main body having a flow path extending from a base end formed so as to be connectable to an external member to an opening on the opposite side, and a lid having a seal for closing the opening, the connection plug main body having a body-side facing surface that faces the lid when the lid closes the opening, and the opening having a spout formed therein that protrudes from the body-side facing surface.

[0009] In this case, the lid portion has a lid-side facing surface that faces the main body-side facing surface when the opening is closed, and the lid-side facing surface may have a groove formed thereon to receive the spout when the lid portion closes the opening. The main body-side facing surface is provided with a main body-side magnetic body, and the lid-side facing surface is provided with a lid-side magnetic body that generates an attractive force between the main body-side magnetic body and the spout, and the spout may protrude beyond the main body-side magnetic body. The groove may be formed in a shape that fits with the spout. The groove may be formed between the seal portion and the lid-side magnetic body. The seal portion may protrude from the lid-side facing surface. The spout may not abut against the lid portion before the seal portion abuts against the opening when the lid portion closes the opening. The spout may be formed in an arc shape. The spout may be formed in a V-shape. The spout may be formed along 2 / 3 or less of the inner circumference of the opening end of the opening. The spout may be formed along 1 / 2 or less of the inner circumference of the opening end of the opening. The spout may be formed at an angle such that the length of the spout protruding from the surface facing the main body becomes longer the closer it is to the apex of the spout. Effect of the Invention

[0010] The present invention can provide a cap for a medical instrument that can prevent urine from adhering to the periphery of the drainage port. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 shows a perspective view of the medical instrument cap with the lid portion open. [Diagram 2] FIG. 2 shows a cross-sectional view of the medical instrument cap with the lid portion open. [Diagram 3] FIG. 2 shows a schematic diagram of a medical device cap with the lid open and urine draining. [Figure 4] FIG. 2 shows a side view of the medical instrument cap with the lid portion closed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] A medical instrument cap according to one embodiment of the present invention will be described below with reference to the drawings. Fig. 1 shows a perspective view of the medical instrument cap with the lid part open, Fig. 2 shows a cross-sectional view of the medical instrument cap with the lid part open, Fig. 3 shows a schematic view of the medical instrument cap with the lid part open and urine being discharged, and Fig. 4 shows a side view of the medical instrument cap with the lid part closed.

[0013] The medical instrument cap 100 is provided so as to be connected to a urinary catheter, a urine bag, etc. via a urination tube (not shown), etc. The medical instrument cap 100 is formed of elastic resin, and has a connection plug main body 10 and a lid portion 30 that are integrally molded, as shown in FIG.

[0014] The connection plug body 10 is formed with a connection part 11 that can be connected to an external member such as a urethral catheter or a urine bag via a tube or the like. As shown in Fig. 2, the connection plug body 10 is formed with a flow path 14 that penetrates from a base end 12 formed to be fluidly connected to an external member to an opening 13 formed on the opposite side of the base end 12. The flow path 14 has a circular cross section and is formed to penetrate the center of the connection part 11 and the opening 13. The opening 13 is an outlet for urine that flows in from the base end 12 side.

[0015] A ring-shaped magnet (main body-side magnetic body) 15 is attached around the opening 13, and a cylindrical side wall 18 is formed to cover the outer periphery of the magnet 15. A hinge portion 31 for allowing the lid portion 30 to swing relative to the connection plug main body portion 10 is integrally provided on this side wall 18.

[0016] The connection plug body 10 has a body-side facing surface 10A that faces the lid 30 when the lid 30 closes the opening 13. This body-side facing surface 10A is composed of a part of the opening 13, the surface of the magnet 15, and the end face of the side wall 18, and is substantially flat.

[0017] The opening 13 according to this embodiment is formed so that the spout 16 protrudes from the main body-facing surface 10A along a portion of the inner circumference of the opening end of the opening 13 that is 1 / 2 or less. That is, the spout 16 protrudes in the urine discharge direction D beyond the magnet 15. The spout 16 is formed in an arc shape along the inner circumference of the opening end of the opening 13. The spout 16 is also formed obliquely so that the length of the spout 16 protruding from the main body-facing surface 10A increases as the spout 16 approaches the apex. That is, the spout 16 is formed so that the amount of protrusion from the main body-facing surface 10A increases as the spout 16 approaches the position farthest from the hinge portion 31 along the inner circumference of the opening end of the opening 13. As a result, the medical instrument cap 100 is designed so that urine U discharged by the spout 16 is guided in a direction away from the magnet 15, as shown in FIG. 3.

[0018] 2, the lid 30 has a shaft portion that rises from the center of the inner surface, and a cylindrical seal portion 33 made of, for example, silicone rubber is attached to the shaft portion. The lid 30 is integrally provided with the connection plug body 10 so as to be swingable at a hinge portion 31, and is provided so that when the lid 30 is closed with the hinge portion 31 as a fulcrum, the seal portion 33 comes into contact with the opening 13 of the connection plug body 10 to close the flow path 14.

[0019] The lid portion 30 has an iron plate (lid side magnetic material) 32 incorporated in a position facing the magnet 15 of the connection plug main body portion 10 when the opening 13 is closed, thereby generating an attractive force between the magnet 15 of the connection plug main body portion 10 and the iron plate (lid side magnetic material) 32.

[0020] The lid portion 30 has a lid-side facing surface 30A that faces the main body-side facing surface 10A when the opening 13 is closed, and the seal portion 33 is provided so as to protrude from the lid-side facing surface 30A.

[0021] The lid-side facing surface 30A is formed with a groove 34 that receives and accommodates the spout 16 when the lid 30 closes the opening 13. The groove 34 is located between the seal 33 and the iron plate 32, and is formed in a shape that fits with the spout 16, as shown in FIG. 4. The groove 34 is formed in the lid 30 so that when the lid 30 closes the opening 13, the spout 16 does not come into contact with the lid 30 before the seal 33 comes into contact with the opening 13. The groove 34 is also formed so that there is a small gap between the spout 16 and the lid 30 when the lid 30 is held in a state in which the opening 13 is closed.

[0022] The medical instrument cap 100 according to this embodiment includes a connection plug body 10 having a flow path formed therein that penetrates from a base end 12 formed so as to be connectable to an external member to an opening 13 on the opposite side, and a lid 30 provided with a seal part 33 for closing the opening 13, the connection plug body 10 having a body-side facing surface 10A that faces the lid 30 when the lid closes the opening 13, and the opening 13 has a spout 16 formed therein that protrudes from the body-side facing surface 10A. As a result, the discharged urine is guided by the spout 16 in a direction away from the magnet 15, thereby preventing the urine from adhering to the periphery of the discharge port.

[0023] Although the present invention has been described above based on the embodiment, the present invention is not limited thereto. For example, in the above embodiment, the shape of spout 16 is an arc shape centered on the axis of opening 13, but the present invention is not limited thereto. As long as the discharged urine is guided in a direction away from magnet 15, spout 16 may be formed in a V-shape.

[0024] In the above embodiment, spout 16 is formed along ½ or less of the inner circumference of the opening end of opening 13, but is not limited to this. If excreted urine is directed in a direction away from magnet 15, spout 16 may be formed along ½ or more and ⅔ or less of the inner circumference of the opening end of opening 13.

[0025] Furthermore, in the above embodiment, the magnet 15 is attached to the connection plug body 10, and the iron plate 32 is attached to the lid 30, but this is not limiting. As long as an attractive force is generated between the lid 30 and the connection plug body 10, the combination of magnetic materials attached to the lid 30 and the connection plug body 10 may be different, and an iron plate may be attached to the connection plug body 10 and a magnet may be attached to the lid 30, or magnets may be attached to both the connection plug body 10 and the lid 30. [Explanation of symbols]

[0026] 10...Connection plug body 10A…Facing surface of main body 11…Connection 12...Proximal end 13…Opening 14...Flow path 15...Magnet (magnetic body) 16…Spout 18...Side wall 30…Lid part 30A…Lid side facing surface 31…Hinge part 32...Iron plate (magnetic cover) 33…Seal part 34…Groove 100…Medical equipment caps

Claims

1. In a cap for a medical instrument, a connection plug body having a flow path formed therethrough from a base end portion connected to an external member to an opening portion on the opposite side; a lid portion provided with a seal portion for closing the opening, A cap for a medical instrument, characterized in that the connection plug main body has a body-side facing surface that faces the lid portion when the lid portion closes the opening, and the opening is formed with a spout protruding from the body-side facing surface.

2. 2. The medical instrument cap according to claim 1, wherein the lid portion has a lid-side facing surface that faces the body-side facing surface when the opening is closed, and the lid-side facing surface is formed with a groove portion that receives the spout when the lid portion closes the opening.

3. 3. The medical instrument cap according to claim 2, wherein a body-side magnetic body is provided on the body-side facing surface, a lid-side magnetic body is provided on the lid-side facing surface which generates an attractive force between the body-side magnetic body and the lid-side magnetic body, and the spout protrudes beyond the body-side magnetic body.

4. 3. The medical instrument cap according to claim 2, wherein the groove is formed in a shape that fits with the spout.

5. 4. The medical instrument cap according to claim 3, wherein the groove is formed between the seal portion and the lid-side magnetic body.

6. 3. The medical instrument cap according to claim 2, wherein the seal portion protrudes from the lid-side facing surface.

7. 2. The medical instrument cap according to claim 1, wherein the spout does not abut the lid portion before the sealing portion abuts the opening when the lid portion closes the opening.

8. 2. The medical instrument cap according to claim 1, wherein the spout is formed in an arc shape.

9. 2. The medical instrument cap according to claim 1, wherein the spout is V-shaped.

10. 2. The medical instrument cap according to claim 1, wherein the spout is formed along 2 / 3 or less of an inner circumference of the opening end of the opening.

11. 2. The medical instrument cap according to claim 1, wherein the spout is formed along less than half of an inner circumference of an opening end of the opening.

12. 2. The medical instrument cap according to claim 1, wherein the spout is obliquely formed such that the length of the spout protruding from the surface facing the main body becomes longer the closer to the apex of the spout.

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