Matched tool for bladder and vaginal fistula repair operation

Abstract

A bladder and vaginal fistula repair operation matching tool comprises a guide wire, a fistula wall mucosa breaker, an umbrella type mouth closer and an injection gun, the fistula wall mucosa breaker comprises a snake bone cannula, a guide wire channel is formed in the middle of the snake bone cannula, the outer surface of the snake bone cannula is sleeved with a soft sleeve, and soft burrs are evenly distributed on the outer surface of the soft sleeve; the umbrella-type mouth closer comprises a strip-shaped tube body, a guide wire groove is formed in the outer surface of the strip-shaped tube body, an umbrella-shaped closing piece is arranged at the front end of the strip-shaped tube body, and a clamping switch is arranged at the rear end of the strip-shaped tube body. The injection gun comprises a gun barrel, the front end of the gun barrel is provided with an injection tube, the outer surface of the injection tube is provided with an injection tube wire guide groove, the upper end of the gun barrel is provided with a liquid storage tank, the rear end of the gun barrel is movably connected with an injection push rod, and the front end of the injection push rod is movably connected into an inner cavity of the gun barrel. The defects in the prior art are overcome, defects can be repaired without tension, and fistulous tract plugging is achieved. In addition, an umbrella-shaped closing piece is provided for healing of a wound surface at a repaired part to serve as a tissue closing clamp, and regeneration and healing of fistulous tract tissue can be obviously promoted.

Description

Technical Field

[0001] The invention relates to human daily necessities, in particular to medical instruments, in particular to a supporting tool for vesicovaginal fistula repair surgery. Background Art

[0002] Vesicovaginal fistula (VVF) is one of the most common female urogenital fistulas. It refers to an abnormal anatomical structure formed between the bladder and the vagina, which causes urine in the bladder to flow out of the vagina through the fistula. VVF is mostly caused by iatrogenic injuries after obstetrics and gynecology or pelvic surgery. The continuous flow of urine from the bladder has a great impact on the patient's physical and mental health and seriously affects the patient's quality of life.

[0003] At present, since the effects of non-surgical treatments for VVF, such as continuous drainage and electrocoagulation, are poor, surgical repair is the main treatment. Affected by factors such as the location, number, size, and vaginal structure of the fistula, surgical repair methods are complex and diverse. Traditional surgical methods mostly use transvaginal / transperitoneal approaches to complete vesicovaginal fistula repair, but the surgical field is small and the operation is difficult. In addition, due to the hyperplasia of scar tissue around the fistula and poor blood supply, surgical repair is extremely difficult. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a vesico-vaginal fistula repair surgery supporting tool, which overcomes the shortcomings of the prior art, has a reasonable design, can repair the defect without tension, and achieves fistula closure. In addition, it provides an umbrella-shaped closure for the healing of the repaired wound surface, which can be used as a disposable tissue closure clip, can significantly promote the regeneration and healing of fistula tissue, and greatly reduce the impact of surgical trauma on patients and postoperative complications.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A tool kit for vesico-vaginal fistula repair surgery, comprising a guide wire, a fistula wall mucosa destroyer, an umbrella-type closing device and an injection gun. The fistula wall mucosa destroyer comprises a snake bone cannula, in which a guide wire channel is provided which runs through the front and back, and a soft sleeve is sleeved on the outer surface of the front half of the snake bone cannula, and a plurality of soft burrs are evenly distributed on the outer surface of the soft sleeve; The umbrella-type closer comprises a strip-shaped tube body, a wire guide groove is provided on the outer surface of the strip-shaped tube body in the axial direction, an umbrella-shaped closing piece is provided at the front end of the strip-shaped tube body, a clamping switch is provided inside the strip-shaped tube body, and the clamping switch is used to control the separation of the umbrella-shaped closing piece from the front end of the strip-shaped tube body; The injection gun includes a gun barrel, a syringe is fixedly connected to the front end of the gun barrel, a syringe guide groove is axially provided on the outer surface of the injection tube, a liquid storage tank is fixedly installed on the upper side of the gun barrel, the outlet end of the liquid storage tank is connected to the inner cavity of the gun barrel, an injection push rod is movably connected to the rear end of the gun barrel, and the front end of the injection push rod is movably connected to the inner cavity of the gun barrel through a piston.

[0006] Preferably, the guidewire includes a guidewire body, which includes a metal wire extending along the length direction of the guidewire and a coating layer covering the outside of the metal wire. Soft wire parts are provided at the front and rear ends of the guidewire body, and the soft wire part and the coating layer are formed into an integral structure by the same soft material; the soft wire part includes a curved segment and a straight segment, and the straight segment is located between the curved segment and the guidewire body, and the straight segment is coaxially connected and fixed to the guidewire body.

[0007] Preferably, the ends of the soft burrs are all provided with curved barb structures.

[0008] Preferably, the umbrella-shaped closure comprises a central rod and a plurality of outer support rods, the ends of the outer support rods are rotatably connected to the front end of the central rod, the outer support rods are evenly arranged around the outside of the central rod, and the outer support rods are arranged at an acute angle to the central rod; one end of the outer support rod away from the central rod is coaxially connected to a degradable support rod; The rear end of the central rod is fixedly connected to the strip-shaped tube body through a connecting support rod, and the clamping end of the clamping switch corresponds to the outer surface of the rear end of the central rod.

[0009] Preferably, the degradable strut is made of biodegradable material.

[0010] Preferably, the clamping switch comprises a first clamp handle, a second clamp handle and a clamp head, wherein the first clamp handle is fixedly connected to the rear end of the strip-shaped tube body, the middle of the second clamp handle is rotatably connected to the first clamp handle through a rotating shaft, and the upper end of the second clamp handle is connected to one end of a cable; The clamp head comprises a sleeve, the sleeve is fixedly connected to the front end of the inner cavity of the strip tube body, a slider is slidably connected in the sleeve, the rear end of the slider is connected to the other end of the cable, the front end of the slider is rotatably connected to a first clamp arm and a second clamp arm through a rotating shaft, the front ends of the first clamp arm and the second clamp arm are respectively fixedly connected to a first slice and a second slice, and the first slice and the second slice are respectively located on both sides of the center rod; The outer surface of the center rod is movably sleeved with a movable sleeve, the front end of the movable sleeve is rotatably connected to one end of a pull rod, the other end of the pull rod is rotatably connected to the outer support rod, the rear end of the movable sleeve is connected to one end of a pull rope, the other end of the pull rope is fixedly connected to a slider, and a conical limit block is fixedly provided on the outer surface of the center rod, the conical limit block is located behind the movable sleeve, and the surface of the conical limit block facing the movable sleeve is a conical surface.

[0011] Preferably, a spring is connected between the first clamp arm and the second clamp arm.

[0012] Preferably, the injection tube is made of soft material.

[0013] The present invention provides a tool for vesicovaginal fistula repair surgery, which has the following beneficial effects: it can repair the defect without tension and block the fistula. It also provides an umbrella-shaped closure as a disposable tissue closure clip for the healing of the wound surface at the repair site, which can significantly promote the regeneration and healing of the fistula tissue, greatly reduce the impact of surgical trauma on patients and postoperative complications, significantly reduce the fistula healing time, and shorten the hospital stay. For complex vesicovaginal fistulas, multiple repairs are used to greatly reduce the difficulty of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings required for describing the prior art are briefly introduced below.

[0015] Figure 1 A schematic diagram of the structure of the guide wire in the present invention; Figure 2 A schematic diagram of the structure of the fistula wall mucosa destroyer of the present invention; Figure 3 A schematic diagram of the structure of the umbrella-type closer in the present invention; Figure 4 A schematic diagram of the partial structure of the umbrella-type closer in the present invention; Figure 5 A schematic diagram of the structure of the injection gun in the present invention; Description of the numbers in the figure: 1. guide wire; 11. guide wire body; 111. metal wire; 112. coating layer; 12. soft wire portion; 121. curved section; 122. straight section; 2. Fistula wall mucosa destroyer; 21. Snake bone cannula; 22. Soft sleeve; 23. Soft burr; 3. Umbrella-shaped closer; 31. Strip tube; 32. Wire guide groove; 33. Umbrella-shaped closure; 331. Center rod; 332. Outer support rod; 333. Degradable support rod; 334. Movable sleeve; 335. Pull rod; 336. Pull rope; 337. Conical stopper; 341. First clamp handle; 342. Second clamp handle; 343. Pull rope; 344. Sleeve; 345. Slider; 346. First clamp arm; 347. Second clamp arm; 348. First slice; 349. Second slice; 4. Injection gun; 41. Gun barrel; 42. Injection tube; 43. Injection tube guide wire groove; 44. Liquid storage tank; 45. Injection push rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with embodiments and drawings.

[0017] Embodiment 1, as Figure 1-5 As shown, a vesico-vaginal fistula repair surgery supporting tool comprises a guide wire 1, a fistula wall mucosa destroyer 2, an umbrella-type closing device 3 and an injection gun 4. The fistula wall mucosa destroyer 2 comprises a snake-bone cannula 21, in which a guide wire channel is provided, which passes through the front and back of the snake-bone cannula 21. A soft sleeve 22 is sleeved on the outer surface of the front half of the snake-bone cannula 21, and a plurality of soft burrs 23 are evenly distributed on the outer surface of the soft sleeve 22. The umbrella-type closer 3 comprises a strip-shaped tube body 31, the outer surface of which is provided with a wire guide groove 32 along the axial direction, the front end of the strip-shaped tube body 31 is provided with an umbrella-shaped closing piece 33, and the rear end of the strip-shaped tube body 31 is provided with a clamping switch, which is used to control the umbrella-shaped closing piece 33 to be separated from the front end of the strip-shaped tube body 31; The injection gun 4 includes a gun barrel 41, a syringe 42 is fixedly connected to the front end of the gun barrel 41, an injection tube 42 is axially provided on the outer surface of the injection tube 42, a liquid storage tank 44 is fixedly installed on the upper side of the gun barrel 41, the outlet end of the liquid storage tank 44 is connected to the inner cavity of the gun barrel 41, and an injection push rod 45 is movably connected to the rear end of the gun barrel 41, and the front end of the injection push rod 45 is movably connected to the inner cavity of the gun barrel 41 through a piston.

[0018] Working principle: When in use, the surgeon first uses a cystoscope to directly view the bladder fistula opening, then inserts the guide wire 1 from the bladder fistula opening into the fistula tract, until the guide wire is seen probing from the vaginal fistula opening, then pulls most of the guide wire 1 to the vaginal end, then inserts the snake bone cannula 21 into the fistula tract along the guide wire 1 from the vagina, and at the same time, does not let the front end of the snake bone cannula 21 exceed the bladder fistula opening, then connects the rear end of the snake bone cannula 21 to a rotating device (such as a hollow motor), drives the snake bone cannula 21 to rotate through the rotating device, and then uses the soft burrs 23 on the outer surface of the soft sheath 22 sleeved by the front half of the snake bone cannula 21 to destroy the mucosa or fistula tract of the vaginal bladder fistula wall, so as to facilitate the re-growth and repair of the tissue in the later stage. After that, the snake bone cannula 21 is taken out from the vaginal fistula opening, the soft sheath 22 is removed from the snake bone cannula 21 and treated as medical waste, and the snake bone cannula 21 can be reused after cleaning and disinfection.

[0019] Then, under direct cystoscope vision, the front end of the strip tube 31 is inserted into the vaginal fistula opening along the guide wire 1 by utilizing the guiding effect of the guide wire groove 32 on the outer surface of the strip tube 31, and the umbrella-shaped closure member 33 at the front end of the strip tube 31 is slightly protruded from the bladder fistula opening, and the insertion length of the strip tube 31 is measured to understand the actual depth of the bladder vaginal fistula. In this embodiment, the strip tube 31 is a soft silicone tube structure, so that the strip tube 31 can bend along the passage when entering the vagina, and scale lines are also provided on the surface of the strip tube 31, and the actual depth of the bladder vaginal fistula can be directly displayed by the scale lines. Then, the clamping switch is manually controlled, and the umbrella-shaped closure member 33 is disconnected and separated from the front end of the strip tube 31 by utilizing the clamping switch; then, the strip tube 31 is taken out, and the umbrella-shaped closure member 33 is left in the bladder for several weeks. In this embodiment, the umbrella-shaped closing member 33 is made of a biodegradable material such as a polylactic acid material, so the umbrella-shaped closing member 33 can be absorbed and degraded by the human body after 4 weeks or fall off into the bladder and be discharged with urine.

[0020] Afterwards, under direct vision of the cystoscope, the front end of the injection tube 42 is inserted into the vaginal fistula along the guide wire 1 from the vagina using the guiding effect of the injection tube guide wire groove 43 on the outer surface of the injection tube 42. The insertion depth is consistent with or slightly shallower than the actual depth of the vesico-vaginal fistula learned in the above steps. In this embodiment, the injection tube 42 is made of a soft material such as silicone material, and the length of the injection tube 42 is not less than 30 cm and the diameter is about 3 mm, so that the injection tube 42 can bend with the channel when it is inserted into the vagina. Afterwards, the injection push rod 45 is used to inject the hydrogel-fat stem cell complex in the liquid storage tank 44 into the vesico-vaginal fistula, so that the fistula is completely blocked by the hydrogel-fat stem cell complex. Afterwards, the injection tube 42 is slowly removed, and the guide wire 1 is pulled out. In this embodiment, the above-mentioned hydrogel-fat stem cell complex can be obtained by existing technology. The scheme for obtaining the hydrogel-fat stem cell complex in the prior art is: extracting fat stem cells from the patient's subcutaneous fat in advance, and making the hydrogel-fat stem cell complex with the help of temperature-controlled hydrogel. The properties and adhesion of this composite material change with temperature, and it can form extremely strong adhesion and flexibility within the human body temperature range, thereby completely blocking the fistula.

[0021] By using the guide wire 1, fistula wall mucosal destroyer 2, umbrella-shaped closure device 3 and injection gun 4 in this embodiment, the defect can be repaired without tension to achieve fistula closure. The umbrella-shaped closure member 33, as a disposable tissue closure clip, can help the healing of the repaired wound surface, promote the regeneration and healing of fistula tissue, greatly reduce the impact of surgical trauma on patients and postoperative complications, and can significantly reduce the fistula healing time and shorten the hospital stay.

[0022] Embodiment 2, as a further preferred embodiment of embodiment 1, the guidewire 1 includes a guidewire body 11, the guidewire body 11 includes a metal wire 111 extending along the length direction of the guidewire and a coating layer 112 coated on the outside of the metal wire 111, in this embodiment, the metal wire 111 can be made of nickel-titanium alloy wire, and soft wire parts 12 are provided at the front and rear ends of the guidewire body 11, and the soft wire part 12 and the coating layer 112 are formed as an integral structure by the same soft material, specifically, silicone material can be used; the soft wire part 12 includes a curved section 121 and a straight section 122, the straight section 122 is located between the curved section 121 and the guidewire body 11, and the straight section 122 is coaxially connected and fixed to the guidewire body 11, wherein the bending angle of the curved section 121 is 15-30°. The softer wire parts 12 provided at the front and rear ends of the guide wire body 11 can reduce the pain of the patient when the guide wire 1 is inserted into the patient's body, and it is also convenient for the surgeon to control the advancement and rotation of the guide wire 1; the 15-30° angle of the curved section 121 is also convenient for passing through complex structures of the human body.

[0023] Embodiment 3, as a further preferred embodiment of embodiment 1, the ends of the soft burrs 23 are all provided with curved barb structures. When the rotating device drives the snake bone cannula 21 to rotate, the curved barb structures at the ends of the soft burrs 23 can more effectively destroy the mucosa of the vaginal vesical fistula wall or the fistula tract, so as to facilitate the re-growth and repair of the tissue in the later stage.

[0024] Embodiment 4, as a further preferred embodiment of embodiment 1, Figure 4 As shown, the umbrella-shaped closing member 33 includes a central rod 331 and a plurality of outer support rods 332, one end of the outer support rod 332 is connected to the front end of the central rod 331, the outer support rods 332 are evenly arranged around the outside of the central rod 331, and the outer support rods 332 and the central rod 331 are arranged at an acute angle, and the end of the outer support rod 332 away from the central rod 331 is coaxially connected to a degradable support rod 333, and the degradable support rod 333 is made of biodegradable material; the rear end of the central rod 331 is fixedly connected to the strip tube body 31 through a connecting support rod; the clamping end of the clamping switch corresponds to the outer surface of the rear end of the central rod 331.

[0025] Among them, Figure 3 As shown, the clamping switch includes a first clamp handle 341, a second clamp handle 342 and a clamp head. The first clamp handle 341 is fixedly connected to the rear end of the strip tube body 31, the middle of the second clamp handle 342 is rotatably connected to the first clamp handle 341 through a rotating shaft, and the upper end of the second clamp handle 342 is connected to one end of a cable 343; The pliers head includes a sleeve 344, which is fixedly connected to the front end of the inner cavity of the strip tube body 31, and a slider 345 is slidably connected in the sleeve 344. The rear end of the slider 345 is connected to the other end of the cable 343, and the front end of the slider 345 is rotatably connected to a first clamp arm 346 and a second clamp arm 347 through a rotating shaft. The first clamp arm 346 and the second clamp arm 347 both extend to the outside of the sleeve 344, and the front ends of the first clamp arm 346 and the second clamp arm 347 are respectively fixedly connected to a first slice 348 and a second slice 349, and the first slice 348 and the second slice 349 are respectively located on both sides of the center rod 331; A movable sleeve 334 is movably sleeved on the outer surface of the center rod 331, and the front end of the movable sleeve 334 is rotatably connected to one end of a pull rod 335, and the other end of the pull rod 335 is rotatably connected to the outer support rod 332. The rear end of the movable sleeve 334 is connected to one end of a pull rope 336, and the other end of the pull rope 336 is fixedly connected to the slider 345. A conical limit block 337 is fixedly arranged on the outer surface of the center rod 331, and the conical limit block 337 is located behind the movable sleeve 334, and the surface of the conical limit block 337 facing the movable sleeve 334 is a conical surface. Specifically, the conical limit block 337 is a truncated cone structure with a diameter gradually increasing from front to back, and the movable sleeve 334 is a silicone soft sleeve, and the movable sleeve 334 has a certain deformation amount.

[0026] In the initial state, the movable sleeve 334 on the outer surface of the central rod 331 is located at the front end of the conical limiting block 337 , and the outer support rod 332 is in an open state through the support of the pull rod 335 .

[0027] Afterwards in use, the front end of the strip tube body 31 is placed in the vaginal fistula along the guide wire 1 and the whole umbrella-shaped closure member 33 is slightly protruded from the vesical fistula, now because the outer support rod 332 is in the state of opening, the end face of the degradable support rod 333 at the end of the outer support rod 332 is against the wall of the vesical fistula. And now, because the bladder is in a non-filled state, the tension force of the wall of the vesical fistula is less, so when making the subsequent clamping fistula operation, the end face of the degradable support rod 333 can directly pull the wall of the vesical fistula to clamp. In addition, in the present embodiment, the end of the degradable support rod 333 can also be arranged to a barb structure, so that the end face of the degradable support rod 333 can be embedded in the fistula wall, so that the end face of the degradable support rod 333 and the wall of the vesical fistula keep stable fixing.

[0028] Then, one end of the second clamp handle 342 is manually controlled to merge with the first clamp handle 341, and then the lever principle is used to drive the other end of the second clamp handle 342 to pull the cable 343, and then the slider 345 in the sleeve 344 is pulled by the cable 343 to move, and then the first clamp arm 346 and the second clamp arm 347 at the front end of the slider 345 are driven to move toward the inner cavity of the sleeve 344, so that the first clamp arm 346 and the second clamp arm 347 are brought closer to each other through the limiting effect of the sleeve 344; at the same time, the slider 345 is pulled by the cable 336 The movable sleeve 334 slides backward along the axis of the center rod 331. Since the movable sleeve 334 is a silicone soft sleeve, the movable sleeve 334 has a certain elastic deformation amount that expands outward, so that the movable sleeve 334 slides along the conical surface of the conical stop block 337 to the rear end of the conical stop block 337. At the same time, the movable sleeve 334 pulls the pull rod 335 to move, and the pull rod 335 drives the outer support rod 332 and the degradable support rod 333 to shrink toward the center rod 331, so that the contraction of the degradable support rod 333 can achieve the effect of clamping the bladder fistula. Afterwards, in order to maintain the contracted state of the outer support rod 332 and the degradable support rod 333, the movable sleeve 334 can be limited by the conical stop block 337 to prevent the movable sleeve 334 from sliding forward, so that the outer support rod 332 and the degradable support rod 333 are always in a contracted state, and the clamping state of the bladder fistula is maintained.

[0029] The first clamp arm 346 and the second clamp arm 347 are brought close to each other, driving the first slice 348 and the second slice 349 to move close to each other, so that the center rod 331 can be cut off by the cooperation between the first slice 348 and the second slice 349, so that the entire umbrella-shaped closure member 33 is disconnected from the strip-shaped tube body 31, so as to ensure that the umbrella-shaped closure member 33 can remain independently in the bladder. Since the degradable strut 333 is made of biodegradable material, after the umbrella-shaped closure member 33 stays in the bladder for a period of time, the degradable strut 333 is absorbed and degraded by the human body in the bladder, so that the umbrella-shaped closure member 33 falls off from the bladder and is discharged with urine.

[0030] In this embodiment, a spring is connected between the first clamp arm 346 and the second clamp arm 347. The spring is located outside the sleeve 344, so that when the second clamp handle 342 is released, the first clamp arm 346 and the second clamp arm 347 can be rotated in opposite directions and away from each other by the elastic action of the spring.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tool kit for vesicovaginal fistula repair surgery, characterized in that: It comprises a guide wire (1), a fistula wall mucosal destroyer (2), an umbrella-type closing device (3) and an injection gun (4). The fistula wall mucosa destroyer (2) comprises a snake-bone cannula (21), wherein a guide wire channel is provided in the snake-bone cannula (21) and passes through the snake-bone cannula (21) from front to back, and a soft sleeve (22) is sleeved on the outer surface of the front half of the snake-bone cannula (21), and a plurality of soft burrs (23) are evenly distributed on the outer surface of the soft sleeve (22); The umbrella-type closer (3) comprises a strip-shaped tube body (31), the outer surface of the strip-shaped tube body (31) is provided with a wire guide groove (32) along the axial direction, the front end of the strip-shaped tube body (31) is provided with an umbrella-shaped closing piece (33), and a clamping switch is provided inside the strip-shaped tube body (31), and the clamping switch is used to control the separation of the umbrella-shaped closing piece (33) from the front end of the strip-shaped tube body (31); The injection gun (4) comprises a gun barrel (41), the front end of the gun barrel (41) is fixedly connected to an injection tube (42), the outer surface of the injection tube (42) is provided with an injection tube guide groove (43) along the axial direction, a liquid storage tank (44) is fixedly installed on the upper side of the gun barrel (41), the outlet end of the liquid storage tank (44) is connected to the inner cavity of the gun barrel (41), and the rear end of the gun barrel (41) is movably connected to an injection push rod (45), and the front end of the injection push rod (45) is movably connected to the inner cavity of the gun barrel (41) through a piston.

2. A vesicovaginal fistula repair surgery kit according to claim 1, characterized in that: The guide wire (1) comprises a guide wire body (11), the guide wire body (11) comprising a metal wire (111) extending in the length direction of the guide wire and a coating layer (112) coating the outside of the metal wire (111), a soft wire portion (12) is provided at both the front and rear ends of the guide wire body (11), the soft wire portion (12) and the coating layer (112) are formed of the same soft material to form an integral structure; the soft wire portion (12) comprises a curved section (121) and a straight section (122), the straight section (122) is located between the curved section (121) and the guide wire body (11), and the straight section (122) is coaxially connected and fixed to the guide wire body (11).

3. The vesicovaginal fistula repair surgery kit according to claim 1, characterized in that: The ends of the soft burrs (23) are each provided with a curved barb structure.

4. The tool for vesicovaginal fistula repair surgery according to claim 1, characterized in that: The umbrella-shaped closing member (33) comprises a central rod (331) and a plurality of outer support rods (332), the ends of the outer support rods (332) being rotatably connected to the front end of the central rod (331), the outer support rods (332) being evenly arranged around the outside of the central rod (331), and the outer support rods (332) and the central rod (331) being arranged at an acute angle; one end of the outer support rod (332) away from the central rod (331) is coaxially connected to a degradable support rod (333); The rear end of the central rod (331) is fixedly connected to the strip-shaped tube body (31) via a connecting support rod, and the clamping end of the clamping switch corresponds to the outer surface of the rear end of the central rod (331).

5. The tool for vesicovaginal fistula repair surgery according to claim 4, characterized in that: The degradable support rod (333) is made of biodegradable material.

6. The vesicovaginal fistula repair surgery kit according to claim 4, characterized in that: The clamping switch comprises a first clamp handle (341), a second clamp handle (342) and a clamp head, wherein the first clamp handle (341) is fixedly connected to the rear end of the strip-shaped tube body (31), the middle of the second clamp handle (342) is rotatably connected to the first clamp handle (341) via a rotating shaft, and the upper end of the second clamp handle (342) is connected to one end of a pull cable (343); The pliers head comprises a sleeve (344), the sleeve (344) being fixedly connected to the front end of the inner cavity of the strip tube body (31), a slider (345) being slidably connected in the sleeve (344), the rear end of the slider (345) being connected to the other end of the cable (343), the front end of the slider (345) being rotatably connected to a first pliers arm (346) and a second pliers arm (347) via a rotating shaft, the front ends of the first pliers arm (346) and the second pliers arm (347) being fixedly connected to a first slice (348) and a second slice (349) respectively, the first slice (348) and the second slice (349) being respectively located on two sides of the center rod (331); The outer surface of the center rod (331) is movably sleeved with a movable sleeve (334); the front end of the movable sleeve (334) is rotatably connected to one end of a pull rod (335); the other end of the pull rod (335) is rotatably connected to an outer support rod (332); the rear end of the movable sleeve (334) is connected to one end of a pull rope (336); the other end of the pull rope (336) is fixedly connected to a slider (345); a conical limit block (337) is fixedly provided on the outer surface of the center rod (331); the conical limit block (337) is located behind the movable sleeve (334); and the surface of the conical limit block (337) facing the movable sleeve (334) is a conical surface.

7. The tool for vesicovaginal fistula repair surgery according to claim 6, characterized in that: A spring is connected between the first clamp arm (346) and the second clamp arm (347).

8. The tool for vesicovaginal fistula repair surgery according to claim 1, characterized in that: The injection tube (42) is made of soft material.

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