A minimally invasive surgical positioning device for urology

Abstract

The present invention provides a minimally invasive surgical positioning device for urology, belonging to the technical field of medical equipment. It includes an external urethra positioning mechanism, and the external urethra positioning mechanism includes a protective cover covering the reproductive organs of female patients. The present invention protects the reproductive organs of female patients by setting the external urethra positioning mechanism, avoids the psychological discomfort of female patients, and can position the external position of the urethra of female patients. In addition, the urethra and the surrounding positions can be protected after surgery to avoid discomfort caused by contact with clothing, avoid blood and excrement infecting clothing from infecting the urethra, and avoid infection caused by touching the patient's hands. By setting the internal urethra positioning mechanism, the internal urethra can be positioned to avoid injury to the connection between the urethra and the bladder caused by tool traction, the lesion can be positioned, and the size of the storage cavity can be adjusted according to the size of the lesion, further avoiding the lesion from being free in the bladder after treatment, and further assisting the tool in collecting the treated lesion body.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a positioning device for minimally invasive surgery in urology. Background Art

[0002] Existing minimally invasive urological surgeries are divided into many categories, among which female bladder surgeries usually have the following positioning methods: first, the female patient lies on a specific bed and places her legs on a rack so that the female patient's legs can be separated and limited, which will allow the female reproductive organs to expand, further revealing the urethra, so that the doctor can visually estimate the position of the urethra, thereby achieving the purpose of locating the urethra; second, the female patient lies on an ordinary bed with her legs spread open, and the doctor searches for the urethra by spreading the female patient's reproductive organs. Although the above two methods can locate the urethra, the female patient will close her thighs due to tension or shame during this process, which will cause the reproductive organs to close to a certain extent, thereby blocking the urethra, further affecting the doctor's positioning of the urethra. During positioning, the doctor will inevitably touch the private parts when pushing the urethra apart, causing discomfort to the female patient. At the same time, a positioning catheter or an expansion balloon is usually placed when positioning inside the urethra. However, when using the expansion balloon, the expansion balloon will block part of the bladder, and the surgical tool will perform surgery there and around it. If a positioning catheter is used, there will be partial obstruction when the positioning catheter penetrates into the bladder. If the positioning catheter is positioned at the junction of the urethra and the bladder, the tool will cause injury to the junction of the urethra and the bladder during the back and forth traction process. In addition, it is impossible to position the lesion when treating the lesion, resulting in the lesion being free in the bladder due to operational errors when it leaves the bladder, and further treatment of it will be more difficult. Therefore, the present application provides a minimally invasive surgical positioning device for urology to meet the needs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a minimally invasive surgical positioning device for urology to solve the problem that the existing female bladder surgery is inconvenient to operate when performing external urethra positioning, which may also cause discomfort to female patients. A positioning catheter or an expansion balloon is usually placed when positioning inside a urine bag. However, when the expansion balloon is used, the expansion balloon will block part of the bladder, and the surgical tool will perform surgery at that place and the surrounding area. If a positioning catheter is used, when the positioning catheter penetrates into the bladder, there will also be partial obstruction. If the positioning catheter is located at the junction of the urethra and the bladder, the tool will cause injury to the junction of the urethra and the bladder during the back and forth traction process. In addition, it is impossible to position the lesion when treating the lesion, resulting in the lesion being free in the bladder due to operational errors when it leaves the bladder, and further treatment of it will be more difficult.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A minimally invasive surgical positioning device for urology comprises an external urethra positioning mechanism, the external urethra positioning mechanism comprises a protective cover covering the reproductive organ of a female patient, a urethra positioning hole is opened on the outer wall of the protective cover, a sealing ring is fixedly connected to the open end of the protective cover and fits the skin around the reproductive organ of the female patient, a water-collecting plate is fixedly connected to the sealing ring and fits the skin below the reproductive organ of the female patient, a feeding pipe is fixedly connected to the lower end of the protective cover and connected thereto, a pair of symmetrically arranged universal balls are fixedly connected to the outer wall of the protective cover, a fixing plate is fixedly connected to the universal ball head of the universal ball, a splint for clamping on the leg is fixedly connected to the fixing plate, a protective pad for fitting the skin of the leg is fixedly connected to the splint, and an anti-reflux ring is fixedly connected to the inner end of the sealing ring; an internal urethra positioning mechanism is used for positioning and protecting the female urethra, and the internal urethra positioning mechanism is connected to the protective cover; the internal urethra positioning mechanism comprises a urethra cannula assembly and a positioning assembly connected thereto, and the urethra cannula assembly is connected to the protective cover.

[0006] Optionally, the sealing ring, the protective pad and the anti-backflow ring are all made of rubber material, the protective cover is made of reversible plastic material, the sealing ring is arranged in a U-shaped ring, the inner bottom wall of the sealing ring and the anti-backflow ring are arranged in an inclined state, and the water-catching plate is V-shaped and is convex on the outside and concave on the inside.

[0007] Optionally, the fixing plate is made of a hard material, the clamping plate is made of an elastic material, a pair of symmetrically arranged weakening grooves are provided on the clamping plate, and the fixing plate and the clamping plate are both arranged in a C shape.

[0008] Optionally, the urethral catheter assembly includes a cylinder body inserted into the urethral positioning hole, both ends of the cylinder body are provided with catheter holes, one of the catheter holes is fixedly connected to a catheter, and the outer wall of the cylinder body is provided with a pair of symmetrically arranged sliding holes.

[0009] Optionally, the positioning assembly includes a circular ring slidably connected to the cylinder, a group of slots opened on the cylinder, and an outer ring sleeved on the cylinder, a sliding block fixedly connected between the circular ring and the outer ring is slidably connected in the sliding hole, an arc-shaped hole is opened on the top of the outer ring, a movable plate that fits the outer wall of the cylinder is provided in the arc-shaped hole, a group of blocks that engage with the slots are fixedly connected to the inner side wall of the movable plate, a T-rod fixedly connected to the outer wall of the movable plate is inserted through a pin hole on the outer side wall of the outer ring, a spring sleeved on the T-rod is provided in the arc-shaped hole, and the spring is fixedly connected to the movable plate and the outer ring.

[0010] Optionally, the positioning assembly also includes a traction cylinder disposed in the cylinder body and fixedly connected to the ring, and an externally threaded cylinder screwed to one end of the insert tube, one end of the externally threaded cylinder is fixedly connected to a plurality of externally expanded sheet bodies distributed in a circular array, an outer protective sleeve is fixedly sleeved on the externally threaded cylinder and the plurality of externally expanded sheet bodies, one end of the traction cylinder is fixedly connected to a group of traction ropes passing through the insert tube and the outer protective sleeve, and the traction ropes are fixedly connected to the externally expanded sheet bodies.

[0011] Optionally, the outer protective sleeve is made of rubber material, and a plurality of weakened grooves are provided on the outer side wall of the outer protective sleeve, and the weakened grooves are aligned with the gap between two adjacent outer expansion sheets.

[0012] Optionally, the externally threaded barrel and the externally expanded sheet body are an integral structure, the externally threaded barrel is made of a hard material, and the externally expanded sheet body is provided with a weakened section.

[0013] Optionally, the cannula is made of a deformable material.

[0014] Optionally, a plurality of first process holes are formed on the clamping plate, a second process hole connected to the first process holes is formed on the fixing plate, and a third process hole connected to the first process hole is formed on the protective pad.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] In the above scheme, by setting up an external urethral positioning mechanism, the present invention not only protects the reproductive organs of female patients, avoiding psychological discomfort caused by doctors touching them, but also can locate the external position of the urethra of female patients, further facilitating doctors' precise operations. In addition, the urethra and surrounding areas can be protected after surgery to avoid discomfort caused by contact with clothing, avoid blood and excrement infecting clothes to infect the urethra, and avoid infection caused by patients' hands touching them.

[0017] By providing an internal urethral positioning mechanism, the present invention can not only locate the inside of the urethra, but also prevent the connection between the urethra and the bladder of female patients from being injured during the back-and-forth traction of the tool. The lesion can also be located, and the size of the storage cavity can be adjusted according to the size of the lesion, further preventing the lesion from being free in the bladder after treatment, and further assisting the tool in collecting the treated lesion body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0019] Figure 1 This is a first-person perspective stereoscopic structural diagram of the minimally invasive surgical positioning device for urology;

[0020] Figure 2 This is a schematic diagram of the second-angle stereoscopic structure of the minimally invasive surgical positioning device for urology;

[0021] Figure 3 This is a schematic diagram of the third-view stereoscopic structure of the minimally invasive surgical positioning device for urology;

[0022] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a schematic diagram of a cutaway, stereoscopic and enlarged structure of the internal positioning mechanism of the urethra;

[0024] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0025] Figure 7 for Figure 5 The enlarged structural diagram at C in the middle;

[0026] Figure 8 It is a three-dimensional enlarged structural schematic diagram of the external threaded tube and the external expansion sheet body.

[0027] Reference numerals:

[0028] 1. Urethral external positioning mechanism; 11. Protective cover; 12. Sealing ring; 13. Water-collecting plate; 14. Feeding tube; 15. Fixing plate; 16. Clamp; 17. Protective pad; 18. Universal ball; 19. Anti-reflux ring; 2. Urethral internal positioning mechanism; 21. Urethral cannula assembly; 211. Cylinder body; 212. Cannula; 213. Sliding hole; 22. Positioning assembly; 221. Externally threaded cylinder; 222. Outer sleeve; 223. Outer expansion sheet; 224. Traction rope; 225. Traction cylinder; 226. Circular ring; 227. Outer ring; 228. Moving plate; 229. T-bar.

[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0030] The following is a detailed description of a minimally invasive surgical positioning device for urology provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0031] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0032] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0033] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0034] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0035] like Figures 1 to 8As shown, an embodiment of the present invention provides a minimally invasive surgical positioning device for urology, including a urethral external positioning mechanism 1, the urethral external positioning mechanism 1 includes a protective cover 11 covering the female patient's reproductive organ to protect the female's privacy and prevent the spraying of blood and excrement. A urethral positioning hole is opened on the outer wall of the protective cover 11. In order to facilitate the positioning of the female patient's urethra, a sealing ring 12 that fits the skin around the female patient's reproductive organ is fixedly connected to the open end of the protective cover 11. In order to increase the sealing performance between the protective cover 11 and the patient's skin, a sealing ring 12 that fits the lower part of the female patient's reproductive organ is fixedly connected to the sealing ring 12. The water-collecting plate 13 for the skin is fixedly connected with a feeding pipe 14 at the lower end of the protective cover 11 in order to block the blood and excrement and prevent them from flowing down along the body and contaminating the female patient's body and the work bed. In order to collect the blood and excrement, a pair of symmetrically arranged universal balls 18 are fixedly connected to the outer wall of the protective cover 11. A fixing plate 15 is fixedly connected to the universal ball head of the universal ball 18. A splint 16 for clamping on the leg is fixedly connected inside the fixing plate 15. The setting of the universal ball 18, the fixing plate 15 and the splint 16 is used to assist the protective cover 11 in positioning to prevent it from falling off by itself. A protective pad 17 for fitting the skin of the leg is fixedly connected inside the splint 16. In order to improve the comfort of fitting the leg, an anti-reflux ring 19 is fixedly connected to the inner end of the sealing ring 12. In order to prevent the backflow of blood and excrement, the sealing ring 12, the protective pad 17 and the anti-reflux ring 19 are all made of rubber material, and the protective cover 11 is made of reversible plastic material. The sealing ring 12 is arranged in a U-shaped ring. The inner bottom walls of the sealing ring 12 and the anti-reflux ring 19 are arranged in an inclined shape. In order to facilitate the diversion of blood and excrement, the water-collecting plate 13 is V-shaped and convex outside and concave inside to prevent leakage of blood and excrement. The fixed plate 15 is made of hard material In order to facilitate the fixation of the splint 16, the splint 16 is made of elastic material. In order to facilitate the clamping on the legs of female patients, a pair of symmetrically arranged weakened grooves are provided on the splint 16. In order to facilitate the deformation of the splint 16 and further adapt to the legs of different female patients, the fixing plate 15 and the splint 16 are both C-shaped. A plurality of first process holes are provided on the splint 16, a second process hole connected to the first process hole is provided on the fixing plate 15, and a third process hole connected to the first process hole is provided on the protective pad 17. The first process hole, the second process hole and the third process hole are provided to facilitate ventilation and improve the comfort of use.

[0036] By setting the urethra external positioning mechanism 1, when in use, first bend the splint 16 to deform it through the weakened groove, and then clamp it on the inner thigh of the female patient, so that the protective pad 17 fits against the inner thigh of the female patient, and releasing the bend of the splint 16 will make the splint 16 return to its original position, and further make the protective pad 17 clamped on the female patient's thigh. At the same time, by pushing the protective cover 11 to move toward the female patient's reproductive organ, the universal ball 18 will rotate, and further make the protective cover 11 cover the female patient's reproductive organ, the sealing ring 12 will fit against the skin around the female patient's reproductive organ, and the water retaining plate 13 will fit against the skin under the female patient's reproductive organ. When the protective cover 11 is continuously pushed to move, the sealing ring 12 will expand outwards. When the sealing ring 12 expands, it will pull the skin around the female patient's reproductive organ outwards, and the female patient's reproductive organ will open in the process, further making the urethra exposed, and at the same time, the urethra will also expand slightly outwards. When the protective cover 11 is pushed to a suitable position When the urethra is positioned, stop pushing, and the urethra positioning hole will face the urethra position of the female patient. During the operation, if blood and excrement are sprayed or flowed out, part of the sprayed blood and excrement will directly enter the protective cover 11, and part of the blood and excrement will enter the protective cover 11 along the anti-reflux ring 19. The anti-reflux ring 19 also prevents the blood and excrement from flowing back. When the urethra internal positioning mechanism 2 is inserted into the urethra, the protective cover 11 can be pressed first, which will cause the protective cover 11 to deform, and further cause the urethra The positioning hole is fitted on the skin around the urethra, which further facilitates the doctor to operate on the urethra. The present invention not only protects the reproductive organs of female patients, avoiding psychological discomfort caused by doctors touching them, but also can locate the position of the urethra of female patients, further facilitating doctors to operate accurately. In addition, the urethra and surrounding areas can be protected after surgery to avoid discomfort caused by contact with clothes, avoid blood and excrement infecting clothes to infect the urethra, and also avoid infection caused by patients' hands touching them.

[0037] like Figure 3 , Figures 5 to 8 As shown, the urethral internal positioning mechanism 2 is used for positioning and protecting the female urethra, and the urethral internal positioning mechanism 2 is connected to the protective cover 11; the urethral internal positioning mechanism 2 includes a urethral catheter assembly 21 and a positioning assembly 22 connected to each other, and the urethral catheter assembly 21 is connected to the protective cover 11.

[0038] The urethral cannula assembly 21 comprises a barrel 211 inserted into the urethral positioning hole, both ends of the barrel 211 are provided with a cannula hole, one of the cannula holes is fixedly connected with a cannula 212, the cannula 212 is made of a deformable material, the outer wall of the barrel 211 is provided with a pair of symmetrically arranged sliding holes 213, the positioning assembly 22 comprises a ring 226 slidably connected to the barrel 211, a group of card slots provided on the barrel 211, and an outer ring 227 sleeved on the barrel 211, the sliding hole 213 is slidable in the outer wall of the barrel 211, and the outer ring 227 is sleeved on the barrel 211. A slider is connected and fixedly connected between the circular ring 226 and the outer ring 227. An arc-shaped hole is opened on the top of the outer ring 227. A movable plate 228 is arranged in the arc-shaped hole and fits with the outer wall of the cylinder 211. A group of blocks engaged with the card slot are fixedly connected to the inner wall of the movable plate 228. A T-shaped rod 229 fixedly connected to the outer wall of the movable plate 228 is inserted into the outer wall of the outer ring 227 through a pin hole. A spring is arranged in the arc-shaped hole and is sleeved on the T-shaped rod 229. The spring is fixedly connected to the movable plate 228 and the outer ring 227.

[0039] The positioning assembly 22 also includes a traction cylinder 225 disposed in the cylinder 211 and fixedly connected to the ring 226, and an external threaded cylinder 221 screwed into one end of the insert 212 by a thread, one end of the external threaded cylinder 221 is fixedly connected to a plurality of external expansion plates 223 distributed in a circumferential array, the external threaded cylinder 221 and the external expansion plates 223 are an integral structure, the external threaded cylinder 221 is made of a hard material, the external expansion plates 223 are provided with a weakened section, the external threaded cylinder 221 and the plurality of external expansion plates are fixedly connected to the insert 212 by a thread, and ... An outer protective sleeve 222 is fixedly sleeved on the sheet body 223. The outer protective sleeve 222 is made of rubber material. The outer wall of one end of the outer protective sleeve 222 is inclined. The outer side wall of the outer protective sleeve 222 is provided with a plurality of weakened grooves. The weakened grooves are aligned with the gap between two adjacent outer expansion sheet bodies 223. One end of the traction tube 225 is fixedly connected to a group of traction ropes 224 that penetrate the insert tube 212 and the outer protective sleeve 222. The traction rope 224 is fixedly connected to the outer expansion sheet body 223.

[0040] By setting the internal urethral positioning mechanism 2, during use, if the urethra is less dilated, the doctor can further open the urethra, insert the outer sleeve 222 into the urethra through the urethral positioning hole, and then push the cylinder 211 to move, so that the outer sleeve 222 moves along the urethra, and further the cannula 212 enters the urethra. When the outer sleeve 222 enters the bladder, it stops, and the cylinder 211 is clamped in the urethral positioning hole, and then the T-shaped rod 229 is pulled, and the T-shaped rod 229 drives the moving plate 228 to move, and the spring is also squeezed. The card block will be further removed from the card slot. At the same time, the outer ring 227 is pulled to move on the cylinder 211, and the outer ring 227 will drive the slider and the circular ring 226 to move. The circular ring 226 will drive the traction cylinder 225 to move, and then the traction rope 224 will be pulled, and the outer expansion sheet 223 will be further pulled to deform and flip with the weakened section as the base point, and the outer protective sleeve 222 will also be turned over, and the weakened groove will be stretched at the same time. When it is rotated to a certain angle, the outer ring 227 is stopped, and the T-shaped rod 229 is released, so that the spring pushes the movement When the plate 228 returns to its original position, the card block will be re-engaged with the card slot, and the outer sleeve 222 and the outer expansion sheet 223 will be flipped to a certain angle to be fixed, so as to facilitate the tool to enter the urethra. If the lesion position needs to be located, the outer sleeve 222 can be directly inserted into the urethra without being flipped. When the tool enters the outer expansion sheet 223, the inner convex part of the weakened section will be tightly attached to the outer wall of the tool. Then the tool is rotated, which will drive the outer expansion sheet 223 to rotate, and further the external threaded tube 221 will be separated from the cannula 212. Through the above operation, the outer protective sleeve 222 and the outer expansion sheet 223 are flipped, and then the outer protective sleeve 222 forms a storage cavity. When the tool moves, it will drive the outer protective sleeve 222 to move, and further the storage cavity can cover the lesion. The present invention can not only locate the urethra, but also prevent the connection between the urethra and the bladder of female patients from being injured during the back and forth traction of the tool. The lesion can also be located, and the size of the storage cavity can be adjusted according to the size of the lesion, further avoiding the lesion from being free in the bladder after treatment, and further assisting the tool to collect the treated lesion body.

[0041] The working principle of the technical solution provided by the present invention is as follows: when in use, first bend the splint 16 to deform it through the weakened groove, and then clamp it on the inner thigh of the female patient, so that the protective pad 17 fits against the inner thigh of the female patient, and releasing the bend of the splint 16 will make the splint 16 return to its original position, and further make the protective pad 17 clamped on the thigh of the female patient. At the same time, by pushing the protective cover 11 to move toward the reproductive organ of the female patient, the universal ball 18 will rotate, and further make the protective cover 11 cover the reproductive organ of the female patient, the sealing ring 12 will fit against the skin around the reproductive organ of the female patient, and the water-retaining plate 13 will fit against the skin below the reproductive organ of the female patient. When the protective cover 11 is continuously pushed to move, the sealing ring 12 will expand outward to seal. When the ring 12 expands, it will pull the skin around the female patient's reproductive organs outward. The female patient's reproductive organs will open in this process, further exposing the urethra, and also slightly expanding the urethra. When the protective cover 11 is pushed to the appropriate position, the pushing is stopped, and the urethra positioning hole is facing the urethra position of the female patient. During the operation, if blood and excrement are sprayed or flowed out, part of the sprayed blood and excrement will directly enter the protective cover 11, and part of the blood and excrement will enter the protective cover 11 along the anti-reflux ring 19. The anti-reflux ring 19 also prevents the backflow of blood and excrement. When inserting the urethra internal positioning mechanism 2 into the urethra, the protective cover 11 can be pressed first, which will cause the protective cover 11 to deform, and further make the urethra positioning hole fit the skin around the urethra.

[0042] After that, if the urethra is less dilated, the doctor can further open the urethra, insert the outer sleeve 222 into the urethra through the urethra positioning hole, and then push the cylinder 211 to move, so that the outer sleeve 222 moves along the urethra, and further the cannula 212 enters the urethra. When the outer sleeve 222 enters the bladder, it stops, and the cylinder 211 is clamped in the urethra positioning hole, and then the T-shaped rod 229 is pulled, and the T-shaped rod 229 drives the moving plate 22 8 moves, which will also cause the spring to be squeezed, further causing the card block to be removed from the card slot. At the same time, the outer ring 227 is pulled to move on the cylinder 211, and the outer ring 227 drives the slider and the ring 226 to move, and the ring 226 drives the traction cylinder 225 to move, which in turn causes the traction rope 224 to be pulled, and further causes the outer expansion sheet 223 to deform and flip around the weakened section as the base point, and also drives the outer protective sleeve 222 to flip, and at the same time, the weakened slot is When the outer ring 227 is pulled to a certain angle, the pulling of the outer ring 227 is stopped, and the T-shaped rod 229 is released, so that the spring pushes the movable plate 228 to return to its original position, and the card block is re-engaged with the card slot, and the outer sleeve 222 and the outer expansion sheet 223 are turned to a certain angle to be fixed, so that the tool can enter the urethra easily. If the lesion position needs to be located, the tool can be directly inserted into the urethra without turning the outer sleeve 222. When the tool enters the outer expansion piece 223, the inner convex part of the weakened section will be in close contact with the outer wall of the tool, and then the tool will be rotated, which will drive the outer expansion piece 223 to rotate, and further cause the external threaded tube 221 to separate from the insertion tube 212. Then, through the above operation, the outer protective sleeve 222 and the outer expansion piece 223 will be flipped, and then the outer protective sleeve 222 will form a storage cavity. When the tool moves, it will drive the outer protective sleeve 222 to move, and further the storage cavity can cover the lesion.

[0043] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0044] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A urology minimally invasive surgery positioning device, characterized in that: It comprises a urethra external positioning mechanism, the urethra external positioning mechanism comprises a protective cover covering the female patient's reproductive organ, the outer wall of the protective cover is provided with a urethra positioning hole, the open end of the protective cover is fixedly connected with a sealing ring that fits the skin around the female patient's reproductive organ, the sealing ring is fixedly connected with a water-collecting plate that fits the skin below the female patient's reproductive organ, the lower end of the protective cover is fixedly connected with a feeding pipe connected thereto, the outer wall of the protective cover is fixedly connected with a pair of symmetrically arranged universal balls, the universal ball head of the universal ball is fixedly connected with a fixing plate, a splint for clamping on the leg is fixedly connected inside the fixing plate, a protective pad for fitting the leg skin is fixedly connected inside the splint, and an anti-reflux ring is fixedly connected to the inner end of the sealing ring; An internal urethra positioning mechanism, used for positioning and protecting the female urethra, wherein the internal urethra positioning mechanism is connected to the protective cover; The urethra internal positioning mechanism comprises a urethra cannula assembly and a positioning assembly connected to each other, and the urethra cannula assembly is connected to the protective cover; The urethral cannula assembly comprises a barrel inserted into the urethral positioning hole, both ends of the barrel are provided with cannula holes, one of the cannula holes is fixedly connected with a cannula, and the outer wall of the barrel is provided with a pair of symmetrically arranged sliding holes; The positioning assembly includes a circular ring slidably connected to the cylinder, a group of slots provided on the cylinder, and an outer ring sleeved on the cylinder, a sliding block fixedly connected between the circular ring and the outer ring is slidably connected in the sliding hole, an arc-shaped hole is provided on the top of the outer ring, a movable plate that fits the outer wall of the cylinder is provided in the arc-shaped hole, a group of blocks that are engaged with the slots are fixedly connected to the inner side wall of the movable plate, a T-shaped rod fixedly connected to the outer wall of the movable plate is inserted through a pin hole on the outer side wall of the outer ring, a spring sleeved on the T-shaped rod is provided in the arc-shaped hole, and the spring is fixedly connected to the movable plate and the outer ring; The positioning assembly also includes a traction cylinder disposed in the cylinder body and fixedly connected to the circular ring, and an externally threaded cylinder screwed into one end of the insert tube through a thread, one end of the externally threaded cylinder is fixedly connected to a plurality of externally expanded sheet bodies distributed in a circular array, an outer protective sleeve is fixedly sleeved on the externally threaded cylinder and the plurality of externally expanded sheet bodies, one end of the traction cylinder is fixedly connected to a group of traction ropes passing through the insert tube and the outer protective sleeve, and the traction ropes are fixedly connected to the externally expanded sheet bodies.

2. The urology minimally invasive surgery positioning device according to claim 1, characterized in that: The sealing ring, the protective pad and the anti-backflow ring are all made of rubber material, the protective cover is made of reversible plastic material, the sealing ring is arranged in a U-shaped ring, the inner bottom walls of the sealing ring and the anti-backflow ring are arranged in an inclined state, and the water-catching plate is V-shaped and is convex outside and concave inside.

3. The urology minimally invasive surgery positioning device according to claim 1, characterized in that: The fixing plate is made of a hard material, the clamping plate is made of an elastic material, a pair of symmetrically arranged weakening grooves are provided on the clamping plate, and the fixing plate and the clamping plate are both arranged in a C shape.

4. The urology minimally invasive surgery positioning device according to claim 1, characterized in that: The outer protective sleeve is made of rubber material, and a plurality of weakened grooves are provided on the outer side wall of the outer protective sleeve. The weakened grooves are aligned with the gaps between two adjacent outer expansion sheets.

5. The urology minimally invasive surgery positioning device according to claim 1, characterized in that: The externally threaded barrel and the externally expanded sheet body are an integrated structure, the externally threaded barrel is made of a hard material, and a weakened section is provided on the externally expanded sheet body.

6. The urology minimally invasive surgery positioning device according to claim 1, characterized in that: The cannula is made of a deformable material.

7. The urology minimally invasive surgery positioning device according to claim 1, characterized in that: The clamping plate is provided with a plurality of first process holes, the fixing plate is provided with a second process hole connected with the first process holes, and the protective pad is provided with a third process hole connected with the first process hole.

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