Novel urethral catheter for women

Abstract

The invention provides a novel urinary catheter for women, which comprises a silica gel catheter provided with a liquid inlet end and a liquid outlet end, the liquid inlet end is positioned at the bladder orifice of the woman, the end part of the liquid outlet end is positioned outside the urethral orifice of the woman, and a urinary catheterization channel is arranged in the silica gel catheter; the umbrella-shaped fixing piece is made of an elastic material, the umbrella-shaped fixing piece comprises a plurality of first fan ring blades, the first fan ring blades are arranged at the end of the liquid inlet end at intervals in the circumferential direction of the silica gel catheter, and the first fan ring blades are connected with the bladder opening in a clamped mode; the catheter body fixing piece is made of an elastic material, the catheter body fixing piece is fixed to the outer wall of the liquid outlet end, and the catheter body fixing piece is connected with the urethra in a clamped mode; the urinary catheterization opening and closing piece is arranged in the urinary catheterization channel and located at the liquid outlet end. The novel catheter can achieve controllable urination, does not need to be connected with a urine bag for use, and is convenient to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of urinary catheters, and in particular relates to a novel urinary catheter for females. Background Art

[0002] A urinary catheter is a tube that is inserted into the bladder through the urethra to drain urine. It is a tube made of natural rubber, silicone rubber or polyvinyl chloride. It can be inserted into the bladder through the urethra to drain urine from the bladder to the outside of the body. It is mainly used for patients with difficulty urinating or inconvenience in urinating independently. It is a commonly used medical device in clinical practice.

[0003] At present, the existing urinary catheter is usually a straight tube, and the urine in the bladder will continuously flow out of the urinary catheter. Therefore, a drainage tube needs to be set at the bottom of the urinary catheter to connect to a urine bag to collect urine. Patients need to carry a urine bag with them, which is inconvenient to operate. In addition, when connecting an external urine bag, urine leakage is prone to occur during the patient's activities, causing discomfort to the patient.

[0004] That is, how to provide a new type of urinary catheter for women that can achieve controllable urination, does not need to be connected to a urine bag, and is easy to operate is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the urinary catheter in the prior art is usually unable to control urination, urine continuously flows out of the urinary catheter, and thus needs to be connected to a urine bag for use, which is inconvenient to operate and prone to urine leakage.

[0006] In order to solve the above problems, the present invention provides a new type of urinary catheter for females, comprising: a silicone catheter, the silicone catheter having a liquid inlet end and a liquid outlet end, the liquid inlet end is located at the female bladder opening, the end of the liquid outlet end is located outside the female urethral opening, and the silicone catheter has a urinary catheterization channel; an umbrella-shaped fixing part, the umbrella-shaped fixing part is made of elastic material, the umbrella-shaped fixing part includes a plurality of first fan ring blades, the plurality of first fan ring blades are arranged at intervals along the circumferential direction of the silicone catheter at the end of the liquid inlet end, and the plurality of first fan ring blades are snap-fitted with the bladder opening; a tube body fixing part, the tube body fixing part is made of elastic material, the tube body fixing part is fixed to the outer wall of the liquid outlet end, and the tube body fixing part is snap-fitted with the urethra; a urinary catheterization opening and closing part, the urinary catheterization opening and closing part is arranged in the urinary catheterization channel and located at the liquid outlet end.

[0007] As a further technical solution of the present invention, the tube body fixing member includes: a plurality of second fan ring blades, the plurality of second fan ring blades are arranged on the outer wall of the liquid outlet end at intervals along the circumferential direction of the silicone catheter, and the plurality of second fan ring blades are located outside the urethral opening and are clamped with the urethral opening.

[0008] As a further technical solution of the present invention, the tube body fixing member comprises a fixing ring, the fixing ring is sleeved and fixed on the outer wall of the liquid outlet end, and the outer wall of the fixing ring abuts against the inner wall of the urethra.

[0009] As a further technical solution of the present invention, there are several tube body fixing parts, and the several tube body fixing parts are arranged at intervals along the length direction of the silicone catheter. The tube body fixing parts include several nail-shaped protrusions, and the several nail-shaped protrusions are arranged at intervals on the outer wall of the silicone catheter along the circumferential direction of the silicone catheter, and the outer side of each nail-shaped protrusion is against the inner wall of the urethra.

[0010] As a further technical solution of the present invention, the urinary catheter opening and closing part includes: a duckbill valve, which is made of flexible material, and is located between the end of the liquid outlet and the second fan ring blade. The outer wall of the duckbill valve at one end away from the second fan ring blade is fixedly connected to the inner wall of the silicone catheter. When one end of the duckbill valve is in a natural state, the other end of the duckbill valve is closed, and when one end of the duckbill valve is squeezed by external force, the other end of the duckbill valve is open.

[0011] As a further technical solution of the present invention, the catheter opening and closing member comprises: a return spring, a cylindrical through groove is provided inside the silicone catheter along the length direction of the silicone catheter, the central axis of the cylindrical through groove is on the same straight line as the central axis of the catheter channel, the diameter of the cylindrical through groove is larger than the diameter of the catheter channel, the return spring is placed inside the cylindrical through groove along the direction of the central axis of the cylindrical through groove, one end of the return spring abuts against one side wall of the cylindrical through groove; a sealing ball, the sealing ball is placed inside the cylindrical through groove, the diameter of the sealing ball is larger than the diameter of the catheter channel, one end of the sealing ball abuts against the other side wall of the cylindrical through groove, and the other end of the sealing ball abuts against the other end of the return spring; a push rod, the push rod is arranged in a direction perpendicular to the central axis of the silicone catheter, one end of the push rod is placed outside the silicone catheter, the other end of the push rod passes through the side wall of the silicone catheter, is located in the catheter channel and contacts with one end of the sealing ball.

[0012] As a further technical solution of the present invention, the urinary catheter opening and closing member further comprises a silicone sleeve, and the silicone sleeve is sleeved at one end of the push rod.

[0013] As a further technical solution of the present invention, the urinary catheter opening and closing member comprises: a silicone sheet, the silicone sheet is fixed in the urinary catheter channel along a direction perpendicular to the central axis of the silicone catheter, the silicone sheet is located between the end of the liquid outlet and the second fan ring blade, the diameter of the silicone sheet is larger than the diameter of the urinary catheter channel, an opening and closing opening is provided in the center of the silicone sheet, the opening and closing opening is in a closed state in a natural state, and the opening and closing opening is in an open state under the action of external force; a urinary catheter cannula, the urinary catheter cannula is plugged into the liquid outlet, the outer diameter of the urinary catheter cannula is matched with the inner diameter of the urinary catheter channel, and the diameter of the opening and closing opening in an open state is larger than the outer diameter of the urinary catheter cannula.

[0014] As a further technical solution of the present invention, the urinary catheter opening and closing part includes: a silicone ring, the outer walls of which are fixedly connected to the inner wall of the silicone catheter, and the center of the silicone ring is provided with a urinary catheter opening; an annular mesh bracket, which is made of memory alloy, and has a conical structure, and the diameter of the conical structure gradually decreases from the end of the liquid outlet end toward the direction of the second fan ring blades, one end of the annular mesh bracket away from the second fan ring blades is fixed to the inner wall of the silicone catheter, and the other end of the annular mesh bracket is embedded in the urinary catheter opening, and when one end of the annular mesh bracket is in a natural state, the other end of the annular mesh bracket is in a closed state, and when one end of the annular mesh bracket is squeezed by an external force, the other end of the annular mesh bracket is in an open state.

[0015] As a further technical solution of the present invention, it also includes: a delivery sleeve, which is sleeved on the periphery of the silicone catheter, the outer diameter of the delivery sleeve is adapted to the diameter of the urethra, and the inner diameter of the delivery sleeve is adapted to the diameter of the umbrella-shaped fixing piece and the diameter of the tube body fixing piece.

[0016] Beneficial effects:

[0017] The present invention provides a novel urinary catheter for women, comprising a silicone catheter, an umbrella-shaped fixing part, a tube body fixing part and a urinary catheter opening and closing part. The liquid inlet end of the silicone catheter is located at the female bladder opening, and the end of the liquid outlet end of the silicone catheter is located outside the female urethral opening, so that the hollow silicone catheter is used for catheterization, so that the urine in the female bladder enters the urinary catheter channel in the silicone catheter through the bladder opening and is discharged from the urethral opening; the umbrella-shaped fixing part made of elastic material comprises a plurality of first fan ring blades, and the plurality of first fan ring blades are arranged at intervals at the end of the liquid inlet end along the circumferential direction of the silicone catheter, so that the liquid inlet end of the silicone catheter is fixed at the bladder opening through the plurality of first fan ring blades and the bladder opening, and the plurality of first fan ring blades are arranged at intervals, so that a gap is left between two adjacent first fan ring blades, so that it is convenient to The catheter is retracted under the action of external force so as to be placed at the bladder opening from the female urethra; the tube body fixing part made of elastic material is fixed to the outer wall of the liquid outlet end, and can be clamped with the urethra through the tube body fixing part, so that the liquid outlet end of the silicone catheter is fixed in the urethra, and the two ends of the silicone catheter can be fixed by the umbrella-shaped fixing part and the tube body fixing part, so that the silicone catheter is fixed more firmly and is not easy to fall off from the body; the urinary catheter opening and closing part is arranged in the urinary catheterization channel and is located at the liquid outlet end. When in a natural state, the urinary catheter opening and closing part blocks the urinary catheterization channel, and urination is not performed at this time. When urination is required, the urinary catheter opening and closing part can be acted on by external force, so that the urinary catheter opening and closing part opens the urinary catheterization channel under the action of external force for catheterization, so that the urinary catheterization channel can be opened and closed by the urinary catheter opening and closing part, thereby realizing controllable urination, and there is no need to connect a urine bag for use, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A cross-sectional view of a first structure of a urinary catheter opening and closing member provided in an embodiment of the present invention;

[0020] Figure 2 A front view of a novel urinary catheter provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a duckbill valve provided in an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of a first structure of a pipe body fixing member provided in an embodiment of the present invention;

[0023] Figure 5A schematic structural diagram of a second structure of a tube body fixing member provided in an embodiment of the present invention;

[0024] Figure 6 A schematic structural diagram of a third structure of a pipe body fixing member provided in an embodiment of the present invention;

[0025] Figure 7 is a cross-sectional view of a second structure of a urinary catheter opening and closing member provided in an embodiment of the present invention Figure 1 ;

[0026] Figure 8 is a cross-sectional view of a second structure of a urinary catheter opening and closing member provided in an embodiment of the present invention Figure 2 ;

[0027] Fig. 9 The third structure of the urinary catheter opening and closing member provided in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0028] Fig.10 The third structure of the urinary catheter opening and closing member provided in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0029] Fig.11 1 is a schematic structural diagram of a third structure of a urinary catheter opening and closing member provided in an embodiment of the present invention;

[0030] Fig.12 Schematic diagram of the fourth structure of the urinary catheter opening and closing member provided in an embodiment of the present invention Figure 1 ;

[0031] Fig.13 Schematic diagram of the fourth structure of the urinary catheter opening and closing member provided in an embodiment of the present invention Figure 2 ;

[0032] Fig.14 It is a cross-sectional view of a fourth structure of the urinary catheter opening and closing piece provided in an embodiment of the present invention.

[0033] Reference numerals:

[0034] 1. Silicone catheter; 101. Liquid inlet end; 102. Liquid outlet end; 103. Urinary catheterization channel;

[0035] 2. Umbrella-shaped fixing member; 201. First fan ring blade;

[0036] 3. Tube body fixing part; 301. Second fan ring blade; 302. Fixing ring; 303. Nail-shaped protrusion;

[0037] 4. Catheterization opening and closing part; 401. Duckbill valve; 411. Return spring; 412. Sealing ball; 413. Push rod; 414. Silicone sleeve; 415. Cylindrical through groove; 421. Silicone sheet; 422. Catheterization cannula; 423. Opening and closing mouth; 431. Silicone ring; 432. Ring-shaped mesh bracket; 433. Catheterization mouth. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] like Figure 1-14 As shown, the first embodiment provides a novel urinary catheter for females, comprising a silicone catheter 1, an umbrella-shaped fixing member 2, a tube body fixing member 3 and a urinary catheter opening and closing member 4, wherein: the silicone catheter 1 has a liquid inlet end 101 and a liquid outlet end 102, the liquid inlet end 101 is located at the female bladder opening, the end of the liquid outlet end 102 is located outside the female urethra opening, and the silicone catheter 1 has a urinary catheter channel 103; the umbrella-shaped fixing member 2 is made of an elastic material such as silicone, and the umbrella-shaped fixing member 2 includes a plurality of first fan ring blades 201, and the plurality of first fan ring blades 201 are arranged along the silicone The rubber tube 1 is arranged at intervals at the end of the liquid inlet end 101 in the circumferential direction, and a plurality of the first fan ring blades 201 are snap-fitted with the bladder opening; the tube body fixing part 3 is made of an elastic material such as silicone, the tube body fixing part 3 is fixed to the outer wall of the liquid outlet end 102, and the tube body fixing part 3 is snap-fitted with the urethra; the urinary catheter opening and closing part 4 is arranged in the urinary catheterization channel 103 and located at the liquid outlet end 102, the urinary catheter opening and closing part 4 is used to block the urinary catheterization channel 103 in a natural state, and the urinary catheter opening and closing part 4 is used to conduct the urinary catheterization channel 103 under the action of an external force.

[0041] Specifically, the present invention provides a novel urinary catheter for women, comprising a silicone catheter 1, an umbrella-shaped fixing member 2, a tube body fixing member 3 and a urinary catheter opening and closing member 4, wherein a liquid inlet end 101 of the silicone catheter 1 is located at the female bladder opening, and an end of a liquid outlet end 102 of the silicone catheter 1 is located outside the female urethral opening, so that urine in the female bladder enters the urinary catheter channel 103 in the silicone catheter 1 through the bladder opening and is discharged from the urethral opening; the umbrella-shaped fixing member 2 made of elastic material comprises a plurality of first fan-ring blades 201, and the plurality of first fan-ring blades 201 are arranged at intervals at the end of the liquid inlet end 101 along the circumferential direction of the silicone catheter 1, so that the liquid inlet end 101 of the silicone catheter 1 is fixed at the bladder opening through the plurality of first fan-ring blades 201 and the bladder opening, and the plurality of first fan-ring blades 201 are arranged at intervals so that a space is left between two adjacent first fan-ring blades 201. There is a gap, which is convenient for it to be retracted under the action of external force, so as to facilitate insertion into the bladder opening from the female urethra; the tube body fixing part 3 made of elastic material is fixed to the outer wall of the liquid outlet end 103, and can be connected with the urethra through the tube body fixing part 3, so that the liquid outlet end 102 of the silicone catheter 1 is fixed in the urethra, and the two ends of the silicone catheter 1 can be fixed by the umbrella-shaped fixing part 2 and the tube body fixing part 3, so that the silicone catheter 1 is fixed more firmly and is not easy to fall off from the body; the urinary catheter opening and closing part 4 is arranged in the urinary catheterization channel 103 and is located at the liquid outlet end 102. When in a natural state, the urinary catheter opening and closing part 4 blocks the urinary catheterization channel 103, and urination is not performed at this time. When urination is required, the urinary catheter opening and closing part 4 can be acted on by an external force, so that the urinary catheter opening and closing part 4 can open the urinary catheterization channel 103 under the action of external force for catheterization, so that the urinary catheterization channel 103 can be opened and closed by the urinary catheter opening and closing part 4, thereby realizing controllable urination, without connecting a urine bag for use, and easy operation.

[0042] In some possible embodiments, the umbrella-shaped fixing member 2 is in an expanded state in a natural state, and the diameter of the umbrella-shaped fixing member 2 in the expanded state is larger than the diameter of the bladder opening. The umbrella-shaped fixing member 2 is in a contracted state under the action of an external force, and the diameter of the umbrella-shaped fixing member 2 in the contracted state is smaller than the diameter of the urethra.

[0043] This is because, under the action of external force, the umbrella-shaped fixing part 2 is in a contracted state and its diameter is smaller than the diameter of the urethra, so that the umbrella-shaped fixing part 2 can be contracted under the action of external force to be placed from the female urethra to the bladder opening; when the umbrella-shaped fixing part 2 is placed at the bladder opening, the umbrella-shaped fixing part 2 loses the external force of the urethra wall and then opens in a natural state. The diameter of the umbrella-shaped fixing part 2 in the expanded state is larger than the diameter of the bladder opening, so that the expanded umbrella-shaped fixing part 2 is engaged with the bladder opening, thereby fixing the liquid inlet end 101.

[0044] In some possible embodiments, the tube body fixing member 3 includes: a plurality of second fan ring blades 301, a plurality of second fan ring blades 301 are arranged on the outer wall of the liquid outlet end 102 at intervals along the circumferential direction of the silicone catheter 1, a plurality of second fan ring blades 301 are located outside the urethral opening and are clamped with the urethral opening, a diameter of a plurality of second fan ring blades 301 is larger than a diameter of the urethral opening, and the second fan ring blades 301 are made of silicone material.

[0045] Those skilled in the art can understand that as the first structure of the tube body fixing member 3, such as Figure 4 As shown, a plurality of second fan-ring blades 301 are arranged on the outer wall of the liquid outlet end 102 at intervals along the circumferential direction of the silicone catheter 1, and the diameter of the plurality of second fan-ring blades 301 is larger than the diameter of the urethral opening. The plurality of second fan-ring blades 301 can be placed outside the urethral opening to be snapped into contact with the urethral opening, so that the leaking portion of the liquid outlet end 102 of the silicone catheter 1 is snapped onto the outside of the urethra. The silicone catheter 1 is fixed by being snapped into the bladder opening inside and the urethral opening outside, and is firmly fixed and not easy to fall off.

[0046] In some possible implementations, the tube body fixing member 3 includes: a fixing ring 302, the fixing ring 302 is sleeved and fixed on the outer wall of the liquid outlet end 102, the outer wall of the fixing ring 302 is against the inner wall of the urethra, and the fixing ring 302 is made of silicone material.

[0047] This is because, as the second structure of the tube body fixing member 3, as Figure 5 As shown, the fixing ring 302 is sleeved and fixed on the outer wall of the liquid outlet end 102, and the outer wall of the fixing ring 302 is against the inner wall of the urethra. The fixing ring 302 made of flexible materials such as silicone can rely on the toughness and elasticity of the material to apply a certain pressure to the urethra wall, so that the silicone catheter 1 is fixed in the cavity of the urethra, and the outer side of the fixing ring 302 has a certain friction with the inner wall of the urethra, thereby preventing it from falling off.

[0048] In some possible embodiments, the number of the tube body fixings 3 is several, and the several tube body fixings 3 are arranged at intervals along the length direction of the silicone catheter 1. The tube body fixings 3 include several nail-shaped protrusions 303, and the several nail-shaped protrusions 303 are arranged at intervals on the outer wall of the silicone catheter 1 along the circumferential direction of the silicone catheter 1. The outer side of each of the nail-shaped protrusions 303 is against the inner wall of the urethra, and the nail-shaped protrusions 303 are made of silicone material.

[0049] Those skilled in the art can understand that as the third structure of the tube body fixing member 3, such as Figure 6As shown, a plurality of tube body fixing members 3 are arranged at intervals along the length direction of the silicone catheter 1, and the tube body of the silicone catheter 1 can be fixed by a plurality of tube body fixing members 3 to enhance its fixing stability; a plurality of nail-shaped protrusions 303 are arranged at intervals on the outer wall of the silicone catheter 1 along the circumferential direction of the silicone catheter 1, and the outer side of each nail-shaped protrusion 303 is against the inner wall of the urethra. The nail-shaped protrusions 303 made of flexible materials such as silicone can rely on the toughness, elasticity and friction of the material as well as its own nail-shaped protrusion structure to fix the tube body of the silicone catheter 1 in the urethral cavity, thereby preventing it from falling off.

[0050] In some possible embodiments, the urinary catheter opening and closing component 4 includes: a duckbill valve 401, which is made of a flexible material such as silicone, and is located between the end of the liquid outlet 102 and the second fan ring blade 301. The outer walls of the duckbill valve 401 at one end away from the second fan ring blade 301 are fixedly connected to the inner wall of the silicone catheter 1, and the outer walls of the duckbill valve 401 are in contact with the inner wall of the silicone catheter 1. When one end of the duckbill valve 401 is in a natural state, the other end of the duckbill valve 401 is closed, and when one end of the duckbill valve 401 is squeezed by an external force, the other end of the duckbill valve 401 is open.

[0051] This is because, as the first structure of the urinary catheter opening and closing member, such as Figure 1 and Figure 3As shown, the outer wall of the duckbill valve 401 at one end away from the second fan ring blade 301 is fixedly connected to the inner wall of the silicone catheter 1, so as to fix the duckbill valve 401 in the urinary catheter channel 103, so as to conduct and block the urinary catheter channel 103 through the duckbill valve 401; the duckbill valve 401 made of flexible material is located between the end of the liquid outlet end 102 and the second fan ring blade 301, so that the duckbill valve 401 is placed on the part of the silicone catheter 1 exposed to the urethra, and the silicone catheter 1 can be pinched outside the body (outside the urethra) to apply an external force to one end of the duckbill valve 401, so that when one end of the duckbill valve 401 is squeezed by the external force, the other end of the duckbill valve 401 opens and becomes open. The duckbill valve 401 is shaped so that the internal channel of the duckbill valve 401 is connected with the urinary catheter channel 103, so that urine is discharged from the body through the urinary catheter channel 103 and the inside of the duckbill valve 401 in turn for urination. When the silicone catheter 1 is released, one end of the duckbill valve 401 is in a natural state and the other end of the duckbill valve 401 is closed to block the urinary catheter channel 103 to stop urination. At the same time, when the other end of the duckbill valve 401 is closed, the urine in the silicone catheter 1 accumulates to apply pressure to the other end of the duckbill valve 401 from both sides of the other end of the duckbill valve 401, so that the other end of the duckbill valve 401 is always in a closed state and is closed more tightly to form a good seal. By controlling the opening and closing of the switch of the duckbill valve 401 in the urethral orifice section with external force, smooth urinary catheterization can be achieved. It can be closed when released, and the operation is convenient.

[0052] In some possible embodiments, the urinary catheter opening and closing member 4 includes: a return spring 411, a cylindrical through groove 415 is opened inside the silicone catheter 1 along the length direction of the silicone catheter 1, the central axis of the cylindrical through groove 415 is on the same straight line as the central axis of the urinary catheter channel 103, the diameter of the cylindrical through groove 415 is larger than the diameter of the urinary catheter channel 103, the return spring 411 is placed inside the cylindrical through groove 415 along the direction of the central axis of the cylindrical through groove 415, and one end of the return spring 411 is against a side wall of the cylindrical through groove 415; a sealing ball 412, the sealing The sealing ball 412 is placed inside the cylindrical groove 415, the diameter of the sealing ball 412 is larger than the diameter of the urinary catheterization channel 103, one end of the sealing ball 412 is against the other side wall of the cylindrical groove 415, and the other end of the sealing ball 412 is against the other end of the reset spring 411; the push rod 413, the push rod 413 is arranged in a direction perpendicular to the central axis of the silicone catheter 1, one end of the push rod 413 is placed outside the silicone catheter 1, and the other end of the push rod 413 passes through the side wall of the silicone catheter 1, is located in the urinary catheterization channel 103 and contacts with one end of the sealing ball 412.

[0053] This is because, as the second structure of the urinary catheter opening and closing member 4, as Figure 7-8 As shown, a cylindrical through groove 415 is opened along the length direction of the silicone catheter 1 through the inside of the silicone catheter 1, and the central axis of the cylindrical through groove 415 is located on the same straight line as the central axis of the urinary catheter channel 103. The diameter of the cylindrical through groove 415 is larger than the diameter of the urinary catheter channel 103, so that the cylindrical through groove 415 is located inside the urinary catheter channel 103 and communicates with the urinary catheter channel 103, so that the return spring 411 and the sealing ball 412 are placed through the cylindrical through groove 415 in the urethral channel 103; through a side wall of the cylindrical through groove 415, the return spring 411 and the sealing ball 412 are placed. 11. The sealing ball 412 and the other side wall of the cylindrical through groove 415 are in contact with each other. The diameter of the sealing ball 412 is larger than the diameter of the urinary catheterization channel 103. One end of the sealing ball 412 is pressed against the connection between the urinary catheterization channel 103 and the cylindrical through groove 415, thereby blocking the urinary catheterization channel 103, so that urine cannot flow out of the body from the urinary catheterization channel 103. The push rod 413 is arranged in a direction perpendicular to the central axis of the silicone catheter 1. One end of the push rod 413 is placed outside the silicone catheter 1, and the other end passes through the side wall of the silicone catheter 1 and is located in the urinary catheterization channel 103. 3 and in contact with one end of the sealing ball 412, that is, the central axis of the push rod 413 and the sealing ball 412 are not in a straight line. After the silicone catheter 1 is placed in the urethra of a woman (such as a woman), the external component can be inserted from the vagina of the woman (arranged adjacent to the urethra) to squeeze the urethral wall, thereby pushing one end of the push rod 413 to move the push rod 413 in a direction perpendicular to the central axis of the silicone catheter 1, so that the other end of the push rod 413 pushes one end of the sealing ball 412. Due to the arc structure of one end of the sealing ball 412 and the push rod 41 3 is not perpendicular to the tangent of the sealing ball 412, so that the sealing ball 412 moves in a direction away from the connection port of the urinary catheterization channel 103 and the cylindrical through groove 415, so that the sealing ball 412 no longer blocks the urinary catheterization channel 103, so that urination can be carried out through the urinary catheterization channel 103; when the external component is withdrawn from the female's vagina to stop squeezing the urethra wall, the push rod 413 loses its thrust, at this time, the elastic force of the reset spring 411 can reset the sealing ball 412 to the connection port of the urinary catheterization channel 103 and the cylindrical through groove 415, so as to stop urination.

[0054] In some possible implementations, the urinary catheter opening and closing piece further includes a silicone sleeve 414 , and the silicone sleeve 414 is sleeved on one end of the push rod 413 .

[0055] Those skilled in the art will appreciate that the silicone sleeve 414 is sleeved on one end of the push rod 413 , and the silicone sleeve 414 can be used to wrap and protect one end of the push rod 413 to prevent the push rod 413 from causing damage to the urethra wall.

[0056] In some possible embodiments, the urinary catheter opening and closing member 4 includes: a silicone sheet 421, which is fixed in the urinary catheter channel 103 along a direction perpendicular to the central axis of the silicone catheter 1, and is located between the end of the liquid outlet 102 and the second fan ring blade 301, the diameter of the silicone sheet 421 is larger than the diameter of the urinary catheter channel 103, and an opening 423 is provided at the center of the silicone sheet 421, the opening 423 is in a closed state in a natural state, and the opening 423 is in an open state under the action of external force; a urinary catheter cannula 422, the urinary catheter cannula 422 is plugged into the liquid outlet 102, the outer diameter of the urinary catheter cannula 422 is adapted to the inner diameter of the urinary catheter channel 103, and the diameter of the opening 423 in the open state is larger than the outer diameter of the urinary catheter cannula 422.

[0057] This is because, as the third structure of the urinary catheter opening and closing member 4, as Figure 9-11 As shown, the silicone sheet 421 located between the end of the liquid outlet 102 and the second fan ring blade 301 is fixed in the urinary catheter channel 103 along the direction perpendicular to the central axis of the silicone catheter 1, the diameter of the silicone sheet 421 is larger than the diameter of the urinary catheter channel 103, and the opening 423 opened in the center of the silicone sheet 421 is in a closed state in a natural state, that is, the opening 423 in a natural state has the elasticity of the silicone so that the upper wall of the opening 423 is close to the lower wall to close the opening 423, so that the urinary catheter channel 103 is blocked by the silicone sheet in the urinary catheter channel 103; the urinary catheter cannula 422 is plugged with the liquid outlet 102, the outer diameter of the urinary catheter cannula 422 is adapted to the inner diameter of the urinary catheter channel 103, and the diameter of the opening 423 in the open state is larger than the outer diameter of the urinary catheter cannula 422, so that The urinary catheter cannula 422 can be inserted from the outside of the female body into the urinary catheter channel 103 in the liquid outlet end 102 to apply pressure to one side of the silicone sheet 421, so that the opening and closing opening 423 in the center of the silicone sheet 421 is in an open state under the action of external force, so that the urinary catheter cannula 422 can be inserted into the opening and closing opening 423, so that the opening and closing opening 423 is further opened, so that the urinary catheter cannula 422 passes through the silicone sheet 421. At this time, the urinary catheter cannula 422 is connected with the urinary catheter channel 103, so that urine is discharged from the body through the urinary catheter channel 103 and the inside of the urinary catheter cannula 422 in turn, so as to urinate; when the urinary catheter cannula 422 is pulled out, the silicone sheet 421 returns to its original state under the action of elasticity, so that the opening and closing opening 423 returns to a natural state under the action of elasticity and then closes, thereby sealing and closing the urinary catheter channel to stop urination.

[0058] In some possible embodiments, the urinary catheter opening and closing member 4 includes: a silicone ring 431, the outer walls of the silicone ring 431 are fixedly connected to the inner wall of the silicone catheter 1, and the center of the silicone ring 431 has a urinary catheter opening 433; an annular mesh bracket 432, the annular mesh bracket 432 is made of memory alloy, the annular mesh bracket 432 is a conical structure, the diameter of the conical structure gradually decreases from the end of the liquid outlet 102 to the direction of the second fan ring blade 301, and the annular mesh bracket One end of the frame 432 away from the second fan ring blade 301 is fixed to the inner wall of the silicone catheter 1, and the other end of the annular mesh support 432 is embedded in the urinary catheter 433, that is, the outer wall around the other end of the annular mesh support 432 is against the inner wall of the urinary catheter 433, and when one end of the annular mesh support 432 is in a natural state, the other end of the annular mesh support 432 is in a closed state, and when one end of the annular mesh support 432 is squeezed by an external force, the other end of the annular mesh support 432 is in an open state.

[0059] This is because, as the fourth structure of the urinary catheter opening and closing member 4, as Figure 12-14 As shown, the outer walls of the silicone ring 431 are fixedly connected to the inner wall of the silicone catheter 1 to fix the silicone ring 431 in the urinary catheterization channel, and the urine in the urinary catheterization channel 103 passes through the urinary catheterization port 433 in the center of the silicone ring 431; one end of the annular mesh support 432 away from the second fan ring blade 301 is fixed to the inner wall of the silicone catheter 1, and one end of the annular mesh support 432 is in a natural state. The other end of the annular mesh support 432 is closed, so that the annular mesh support 432 is fixed in the urinary catheterization channel 103, and the urinary catheterization port 433 is blocked by the other end of the annular mesh support 432 embedded in the urinary catheterization port 433, thereby blocking the urinary catheterization channel 103; the annular mesh support 432 made of memory alloy has a conical structure, and the diameter of the conical structure increases from the end of the liquid outlet 102 to the second fan ring blade 301. The direction of the fan ring blades 301 gradually decreases. The liquid outlet end 102 of the silicone catheter 1 can be pinched or pressed outside the body (outside the urethra) to apply external force to one end of the annular mesh bracket 432, so that when one end of the annular mesh bracket 432 is squeezed by the external force, the other end of the annular mesh bracket 432 opens to an open state and squeezes the inner wall of the urinary catheter port 433, so that the urinary catheter port 433 at the center of the silicone ring 431 made of silicone material undergoes elastic deformation to expand the urinary catheter port 433, so that the urine in the urinary catheter channel 103 is discharged from the body through the urinary catheter port 433 and the annular mesh bracket 432 to urinate; when the silicone catheter 1 is released, the annular mesh bracket 432 and the silicone ring 431 return to their original state, so as to block the urinary catheter port 433 through the other end of the closed annular mesh bracket 432, and then block the urinary catheter channel 103 to stop urination.

[0060] In some possible embodiments, it also includes: a delivery sleeve, which is sleeved on the periphery of the silicone catheter 1, the outer diameter of the delivery sleeve is adapted to the diameter of the urethra, and the inner diameter of the delivery sleeve 1 is adapted to the diameter of the umbrella-shaped fixing part 2 and the diameter of the tube body fixing part 3. Specifically, the outer diameter of the delivery sleeve is smaller than the diameter of the urethra, the diameter of the umbrella-shaped fixing part 2 in a contracted state is smaller than the inner diameter of the delivery sleeve, and the diameter of the tube body fixing part 3 under the action of external force is smaller than the inner diameter of the delivery sleeve.

[0061] Those skilled in the art can understand that the delivery sleeve is sleeved on the periphery of the silicone catheter 1, the outer diameter of the delivery sleeve is adapted to the diameter of the urethra, and the inner diameter of the delivery sleeve 1 is adapted to the diameter of the umbrella-shaped fixing member 2 and the diameter of the tube body fixing member 3. The cylindrical delivery sleeve can be sleeved on the periphery of the silicone catheter 1 to apply an external force to the umbrella-shaped fixing member 2 and the tube body fixing member 3, so that the umbrella-shaped fixing member 2 and the tube body fixing member 3 enter the interior of the delivery sleeve, so as to deliver the silicone catheter 1 to the female urethra and bladder through the delivery sleeve. In the bladder, when the silicone catheter 1 goes deep into the bladder along the female urethra, the delivery sleeve is withdrawn to leave the silicone catheter 1 in the urethra. At this time, the umbrella-shaped fixing part 2 of the liquid inlet end 101 opens in a natural state to clamp the bladder opening, and at the same time, the tube body fixing part 3 of the liquid outlet end 102 presses against the urethral wall or clamps the urethral opening in a natural state to fix the silicone catheter 1; the delivery sleeve is used to facilitate the placement and removal of the silicone catheter 1, so as to utilize the natural channel of the human body to perform non-invasive or minimally invasive replacement of the silicone catheter 1 and reduce damage to the urethra.

[0062] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. They should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

[0063] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A novel urinary catheter for females, characterized in that: include: A silicone catheter, the silicone catheter having a liquid inlet end and a liquid outlet end, the liquid inlet end is located at the female bladder opening, the end of the liquid outlet end is located outside the female urethra opening, and the silicone catheter has a urinary catheter channel; An umbrella-shaped fixing member, the umbrella-shaped fixing member is made of elastic material, the umbrella-shaped fixing member comprises a plurality of first fan ring blades, the plurality of first fan ring blades are arranged at intervals at the end of the liquid inlet end along the circumferential direction of the silicone tube, and the plurality of first fan ring blades are clamped with the bladder opening; A tube body fixing part, the tube body fixing part is made of elastic material, the tube body fixing part is fixed to the outer wall of the liquid outlet end, and the tube body fixing part is clamped with the urethra; A urinary catheter opening and closing piece is arranged in the urinary catheterization channel and located at the liquid outlet end.

2. The novel urinary catheter according to claim 1, characterized in that: The tube body fixing member comprises: A plurality of second fan ring blades are arranged on the outer wall of the liquid outlet end at intervals along the circumferential direction of the silicone tube, and a plurality of second fan ring blades are located outside the urethral opening and are clamped with the urethral opening.

3. The novel urinary catheter according to claim 1, characterized in that: The pipe body fixing member comprises: A fixing ring is sleeved and fixed on the outer wall of the liquid outlet end, and the outer wall of the fixing ring abuts against the inner wall of the urethra.

4. The novel urinary catheter according to claim 1 is characterized in that: There are several tube body fixing parts, which are arranged at intervals along the length direction of the silicone catheter. The tube body fixing parts include several nail-shaped protrusions, which are arranged at intervals on the outer wall of the silicone catheter along the circumferential direction of the silicone catheter, and the outer side of each nail-shaped protrusion is against the inner wall of the urethra.

5. The novel urinary catheter according to claim 2, characterized in that: The urinary catheter opening and closing member comprises: A duckbill valve, wherein the duckbill valve is made of a flexible material, and is located between the end of the liquid outlet and the second fan ring blade. The outer wall of the duckbill valve at one end away from the second fan ring blade is fixedly connected to the inner wall of the silicone tube. When one end of the duckbill valve is in a natural state, the other end of the duckbill valve is in a closed state. When one end of the duckbill valve is squeezed by an external force, the other end of the duckbill valve is in an open state.

6. The novel urinary catheter according to claim 3, characterized in that: The urinary catheter opening and closing member comprises: A return spring, wherein a cylindrical through groove is provided inside the silicone catheter along the length direction of the silicone catheter, the central axis of the cylindrical through groove is on the same straight line as the central axis of the urinary catheter channel, the diameter of the cylindrical through groove is larger than the diameter of the urinary catheter channel, the return spring is placed inside the cylindrical through groove along the direction of the central axis of the cylindrical through groove, and one end of the return spring abuts against a side wall of the cylindrical through groove; A sealing ball, the sealing ball is placed inside the cylindrical through groove, the diameter of the sealing ball is larger than the diameter of the urinary catheterization channel, one end of the sealing ball abuts against the other side wall of the cylindrical through groove, and the other end of the sealing ball abuts against the other end of the return spring; A push rod is arranged in a direction perpendicular to the central axis of the silicone catheter, one end of the push rod is placed outside the silicone catheter, and the other end of the push rod passes through the side wall of the silicone catheter and is located in the urinary catheter channel and contacts one end of the sealing ball.

7. The novel urinary catheter according to claim 6, characterized in that: The urinary catheter opening and closing member also includes: A silicone sleeve is arranged on one end of the push rod.

8. The novel urinary catheter according to claim 2, characterized in that: The urinary catheter opening and closing member comprises: A silicone sheet, wherein the silicone sheet is fixed in the urinary catheter channel along a direction perpendicular to the central axis of the silicone catheter, the silicone sheet is located between the end of the liquid outlet and the blade of the second fan ring, the diameter of the silicone sheet is larger than the diameter of the urinary catheter channel, and an opening is provided in the center of the silicone sheet, the opening is in a closed state in a natural state, and is in an open state under the extrusion of an external force; A urinary catheter cannula is plugged into the liquid outlet end, the outer diameter of the urinary catheter cannula is matched with the inner diameter of the urinary catheter channel, and the diameter of the opening in the open state is larger than the outer diameter of the urinary catheter cannula.

9. The novel urinary catheter according to claim 2, characterized in that: The urinary catheter opening and closing member comprises: A silicone ring, the outer walls of which are fixedly connected to the inner wall of the silicone catheter, and the center of the silicone ring is provided with a urinary catheter port; An annular mesh bracket, the annular mesh bracket is made of memory alloy, the annular mesh bracket is a conical structure, the diameter of the conical structure gradually decreases from the end of the liquid outlet end to the direction of the second fan ring blade, one end of the annular mesh bracket away from the second fan ring blade is fixed to the inner wall of the silicone catheter, the other end of the annular mesh bracket is embedded in the urinary catheter, when one end of the annular mesh bracket is in a natural state, the other end of the annular mesh bracket is closed, and when one end of the annular mesh bracket is squeezed by an external force, the other end of the annular mesh bracket is open.

10. The novel urinary catheter according to claim 1, characterized in that: Also includes: The delivery sleeve is sleeved on the periphery of the silicone catheter, the outer diameter of the delivery sleeve is adapted to the diameter of the urethra, and the inner diameter of the delivery sleeve is adapted to the diameter of the umbrella-shaped fixing piece and the diameter of the tube body fixing piece.

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