Positioning device for uterus suspension under single-port laparoscope

Abstract

The invention discloses a positioning device for uterus suspension under a single-port laparoscope, and belongs to the technical field of medical instruments. Comprising a posture adjusting assembly and a suspension assembly, and the suspension assembly is arranged on the posture adjusting assembly; the suspension assembly comprises a circular mounting plate arranged above the posture adjusting assembly, an arc-shaped ring is arranged on the edge of the circular mounting plate, a plurality of lifting ropes are arranged on the arc-shaped ring, one ends of the lifting ropes penetrate through the arc-shaped plate, the other ends of the lifting ropes are downwards suspended, a supporting plate is arranged on the lower portion of the posture adjusting assembly, and the supporting plate is arranged on the lower portion of the posture adjusting assembly. One end of the supporting plate is fixed to the posture adjusting assembly, a plurality of guide plates are arranged at the other end of the supporting plate, one ends of the guide plates are connected to the supporting plate, guide rings are arranged at the other ends of the guide plates, and the other ends of the lifting ropes are located in the guide rings. According to the technical scheme, the uterus suspension positioning device is used for conducting suspension positioning on the uterus so as to expose the operation view, and meanwhile the problem that an abdominal incision is extruded in the suspension positioning process is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to a positioning device for single-port laparoscopic uterine suspension. BACKGROUND

[0002] In single-port laparoscopic surgery, the uterus will cause a certain obstruction to the surgical field, especially when dealing with larger uterine fibroids or adenomyosis (when colorectal surgery, the uterus is located above and also obstructs the surgical field). In order to overcome this problem, doctors usually use some skills and methods to improve the surgical field, for example, by suspending the uterus to change the position of the uterus, and then suspending and positioning the uterus to expose the surgical area and field of view.

[0003] Therefore, there are many devices for suspending and positioning organs in the abdominal cavity in the prior art, such as a single-port gasless suspension device disclosed in CN216257243U, which comprises a rack, the top of the rack is provided with a suspension beam, the suspension beam is provided with three suspension seats arranged horizontally and side by side, and a suspension chain is suspended on each suspension seat.

[0004] The device in the prior art described above is only suitable for suspending the abdominal wall when in use, and if it is applied to uterine suspension, the following problems exist. Since the suspension chain needs to enter from the abdominal incision to connect the uterus inside the abdominal cavity, when the uterus is suspended, the angle and direction of the uterine suspension are not fixed, so if the suspension chain is inclined or V-shaped (as shown in Figure 2 the suspension chain will contact the abdominal incision and cause extrusion to the abdominal incision, resulting in the problem of increased trauma to the abdominal incision. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a positioning device for single-port laparoscopic uterine suspension, which is used to suspend and position the uterus to expose the surgical field of view, while avoiding the problem of extrusion to the abdominal incision during the suspension and positioning process.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The utility model provides a kind of positioning device for single-hole laparoscopic uterine suspension, including posture adjustment component and suspension component, the suspension component is set on posture adjustment component, the posture adjustment component is used to change the spatial position of suspension component;The suspension component includes the circular mounting plate set above posture adjustment component, the edge of the circular mounting plate is equipped with arc circle, the arc circle is equipped with several ropes, one end of the rope is set through arc-shaped plate, the other end of the rope is downwardly suspended and set, the lower part of the posture adjustment component is equipped with supporting plate, one end of the supporting plate is fixed on posture adjustment component, the other end of the supporting plate is equipped with several guide plates, one end of the guide plate is connected to supporting plate, the other end of the guide plate is equipped with guide ring, the other end of the rope is located in guide ring; The posture adjustment component includes U-shaped tube, the outer side of the U-shaped tube is symmetrically equipped with locking bolt, the locking bolt is threadedly connected on the U-shaped tube, the threaded end of the locking bolt is equipped with clamping plate, the clamping plate is located in the U-shaped tube, to be clamped and fixed on operating bed, the U-shaped tube is vertically equipped with lifting rod, one end of the lifting rod is fixed on the U-shaped tube, the other end of the lifting rod is equipped with rotating plate, one end of the rotating plate is rotatably connected on the end of the lifting rod, the other end of the rotating plate is equipped with mounting rod, the circular mounting plate is fixed on the upper end of the mounting rod, and the supporting plate is fixed on the lower end of the mounting rod.

[0007] Further, the other end of the supporting plate is equipped with threaded column, one end of the threaded column is fixed on the supporting plate, the other end of the threaded column is equipped with locking nut, the lower side of the locking nut is equipped with sliding plate, the middle part of the sliding plate is slidably connected on the threaded column, the lower surface of the sliding plate is equipped with locking gear, the middle part of the locking gear is sleeved and arranged on the threaded column, and the upper end surface of the locking gear is fixed on the lower surface of the sliding plate, one end of the guide plate connected with the supporting plate is equipped with rotating gear, the middle part of the rotating gear is equipped with stand column, one end of the stand column is fixed on the supporting plate, and the middle part of the rotating gear is rotatably connected on the stand column.

[0008] Further, the slide ring is arranged below the sliding plate, a reset spring is arranged between the slide ring and the rotating gear, the reset spring is sleeved on the stand column, and two ends of the reset spring are fixed on the rotating gear and the slide ring respectively, a traction rope is arranged on the slide ring, one end of the traction rope is fixed on the slide ring, and the other end of the traction rope is provided with a clamping assembly, the clamping assembly comprises four connecting rods, the four connecting rods are connected with each other to form a parallelogram structure, the ends of the four connecting rods are rotatably connected with each other, first and second rotating shafts are arranged on two opposite corners of the parallelogram structure respectively, the first rotating shaft connects the parallelogram structure with the guide ring, the other end of the traction rope is connected with one end of the second rotating shaft, a first vertical plate is arranged on the guide plate and close to the rotating gear, and the traction rope passes through the first vertical plate, when the sliding plate extrudes the slide ring downwards, the slide ring drives the traction rope to move, thereby pulling one corner of the parallelogram structure, and thereby the two corners adjacent to the pulled corner are close to the middle part, and the lifting rope is clamped and fixed.

[0009] Further, a sliding groove is arranged on the guide plate, a sliding block is arranged in the sliding groove, the other end of the second rotating shaft is fixed on the sliding block, a light rod is arranged on the sliding block, the sliding block is slidably connected with the light rod, and two ends of the light rod are fixedly connected with two ends of the sliding groove.

[0010] Further, a connecting block is arranged on one end of the second rotating shaft, the connecting block is fixed on the second rotating shaft, and the other end of the traction rope is fixed on the connecting block.

[0011] Further, a supporting spring is arranged below the sliding plate, the supporting spring is sleeved on the threaded column, and two ends of the supporting spring are fixed on the locking gear and the supporting plate respectively.

[0012] Further, a plurality of second vertical plates are uniformly arranged on the guide plate, the height of the second vertical plate is less than that of the first vertical plate, and the traction rope passes through the plurality of second vertical plates.

[0013] Further, a baffle is arranged on the end of the stand column above the slide ring, and the baffle is fixed on the stand column.

[0014] The present application has the following advantages: In the technical solution, the guide ring serves as a fulcrum of the lifting rope, thereby avoiding the contact between the lifting rope and the abdominal incision during the non-vertical suspension positioning process, and avoiding the extrusion and tearing of the abdominal incision, and the increase of the abdominal incision trauma.

[0015] Additional advantages, objects, and features of the application will be set forth in part by the description that follows, and in part will become apparent to those skilled in the art upon examination of the following or can be learned from practice of the application. The objectives and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] To make the objectives, technical solutions and beneficial effects of the present application clearer, the present application is described below with the help of the following drawings: Figure 1 A perspective view of the positioning device of the present application; Figure 2 A plan view of the positioning device of the present application for tilting the uterus; Figure 3 A perspective view of the positioning device of the present application provided with multiple suspension assemblies; Figure 4 A view of the positioning device of the present application provided with one suspension positioning assembly; Figure 5 A view of the positioning device of the present application Figure 3 A partial enlarged view of A in the positioning device of the present application.

[0017] In the drawings, the following signs are used: 1, abdominal cavity; 2, uterus; 3, abdominal incision; 4, U-shaped tube; 5, locking bolt; 6, clamping plate; 7, lifting rod; 8, rotating plate; 9, mounting rod; 10, circular mounting plate; 11, arc-shaped ring; 12, lifting rope; 13, supporting plate; 14, guide plate; 15, guide ring; 16, threaded column; 17, locking nut; 18, sliding plate; 19, locking gear; 20, supporting spring; 21, rotating gear; 22, connecting rod; 23, first rotating shaft; 24, sliding groove; 25, polished rod; 26, sliding block; 27, second rotating shaft; 28, connecting block; 29, second vertical plate; 30, first vertical plate; 31, traction rope; 32, sliding ring; 33, vertical column; 34, return spring; 35, baffle; 36, telescopic spring. DETAILED DESCRIPTION

[0018] As Figures 1-5As shown, a positioning device for single-hole laparoscopic uterine suspension, comprising a posture adjusting assembly and a suspension assembly, the suspension assembly is arranged on the posture adjusting assembly, and the posture adjusting assembly is used to change the spatial position of the suspension assembly; the suspension assembly comprises a circular mounting plate 10 arranged above the posture adjusting assembly, an arc-shaped ring 11 is arranged on the edge of the circular mounting plate 10, a plurality of lifting ropes 12 are arranged on the arc-shaped ring 11, one end of the lifting rope 12 is arranged (slid through) through the arc-shaped plate, the other end of the lifting rope 12 is arranged downwardly, the lower part of the posture adjusting assembly is provided with a supporting plate 13, one end of the supporting plate 13 is fixed on the posture adjusting assembly, a plurality of guide plates 14 are arranged on the other end of the supporting plate 13, one end of the guide plate 14 is connected to the supporting plate 13, a guide ring 15 is arranged on the other end of the guide plate 14, the other end of the lifting rope 12 is located in the guide ring 15, preferably, when a plurality of guide plates 14 are arranged, the lengths of the plurality of guide plates 14 can be set according to actual conditions, that is, the lengths of the plurality of guide plates 14 can be set to be different, so as to be suitable for tensioning operation at different positions and different angles, or the guide plate 14 is arranged in a telescopic manner, when arranged in a telescopic manner, the light rod 25 is also preferably arranged in a telescopic manner; The posture adjusting assembly comprises a U-shaped tube 4, lock nuts 5 are symmetrically arranged on the outer side of the U-shaped tube 4, the lock nuts 5 are threadedly connected to the U-shaped tube 4, clamping plates 6 are arranged on the threaded ends of the lock nuts 5, and the clamping plates 6 are located in the U-shaped tube 4 and are used to be clamped and fixed on a surgical bed, a lifting rod 7 is vertically arranged on the U-shaped tube 4 (it can be understood that the lifting rod 7 is formed by a threaded sleeve and a screw rod, or can be a straight line push rod or other straight line telescopic assembly), one end of the lifting rod 7 is fixed to the U-shaped tube 4, a rotating plate 8 is arranged on the other end of the lifting rod 7 (the rotating plate 8 can be locked to the lifting rod 7 by a bolt, thereby realizing rotation and locking, and of course can be other rotating connection modes), one end of the rotating plate 8 is rotatably connected to the end of the lifting rod 7, and an installation rod 9 is arranged on the other end of the rotating plate 8, the circular mounting plate 10 is fixed to the upper end of the installation rod 9, and the supporting plate 13 is fixed to the lower end of the installation rod 9.

[0019] The working principle of the above technical scheme is as follows: When performing single-hole laparoscopic surgery, first, according to the location of the patient's affected area, the U-shaped tube 4 is sleeved on the operating bed (such as the operating bed guardrail), then the locking bolt 5 is rotated to move the clamping plate 6 inward, thereby clamping and locking the U-shaped tube 4 on the operating bed, then the height of the telescopic rod and the rotation angle of the rotating plate 8 are adjusted, so that the guide ring 15 is located above or outside the patient's abdomen (the position can be adjusted according to the actual situation), then the end of the lifting rope 12 is passed through the guide ring 15 and connected with the uterus 2 inside the patient's abdomen (the connection method is prior art, which can be achieved by using a uterus clamp or directly sewing the end of the lifting rope 12 on the uterus 2), of course, one or more lifting ropes 12 can be provided on the uterus 2, which can be selected and used according to the actual situation, then the other end of the lifting rope 12 is pulled to pull the uterus 2, so that the uterus 2 moves and the surgical field is exposed, then the other end of the lifting rope 12 is limited and positioned on the arc-shaped ring 11 by a clamp or a knot, that is, the uterus 2 is suspended and positioned (position limited) at this time, thereby exposing the surgical field and improving the surgical effect. It is not difficult to understand that the setting of the guide ring 15 can serve as a fulcrum for the lifting rope 12, thereby avoiding the contact between the lifting rope 12 and the abdominal incision 3 when the lifting rope 12 is under stress, causing the abdominal incision 3 to be squeezed and torn, and further damaging the abdominal incision 3.

[0020] It should be further pointed out that the lifting rod 7 and the rotating plate 8 are provided to change the distance, angle and other position parameters of the supporting plate 13 relative to the patient's abdomen, and the principle and structure thereof are prior art, which will not be described in detail here.

[0021] In an implementable manner, the other end of the supporting plate 13 is provided with a threaded column 16, one end of the threaded column 16 is fixed to the supporting plate 13, the other end of the threaded column 16 is provided with a locking nut 17, the lower side of the locking nut 17 is provided with a sliding plate 18, the middle part of the sliding plate 18 is slidingly connected to the threaded column 16, the lower surface of the sliding plate 18 is provided with a locking gear 19, the middle part of the locking gear 19 is sleeved and arranged on the threaded column 16, and the upper end surface of the locking gear 19 is fixed to the lower surface of the sliding plate 18, one end of the guide plate 14 connected with the supporting plate 13 is provided with a rotating gear 21, the middle part of the rotating gear 21 is provided with a stand column 33, one end of the stand column 33 is fixed to the supporting plate 13, and the middle part of the rotating gear 21 is rotatably connected to the stand column 33.

[0022] The working principle of the above technical solution is as follows: When it is needed to use one or more hangers 12 to suspend and position the uterus 2, at this time, the angle of the hanger 12 needs to be adjusted according to the needs, so as to stretch and suspend the uterus 2 to the expected position (the position of exposing the surgical field), at this time, the angle of the guide plate 14 and other parameters need to be adjusted, when adjusting, only need to move the slide plate 18 upwards, that is, move the locking gear 19 upwards, at this time, the rotating gear 21 loses the limitation of the locking gear 19, each rotating gear 21 can be rotated independently, thereby rotating each guide plate 14 to the specified position, when the position adjustment of the guide plate 14 is completed, only need to move the slide plate 18 downwards, make the locking gear 19 mesh with each rotating gear 21, that is, after the locking nut 17 extrudes and limits the locking gear 19 on the supporting plate 13, the rotating friction of the locking gear 19 itself is large, therefore, the pre-meshed rotating gears 21 cannot rotate, thereby realizing the position locking of the guide plate 14, of course, it is not difficult to understand that during the meshing process of the locking gear 19 and the rotating gear 21, the angle of the rotating gear 21 can be finely adjusted, so that each rotating gear 21 can be meshed with the locking gear 19, that is, in this way, the quick limiting and position locking of each guide plate 14 are realized, the quickness and stability in the use process are ensured.

[0023] In an implementable mode, a sliding ring 32 is slidably sleeved on the stand column 33, the sliding ring 32 is arranged below the slide plate 18, a return spring 34 is arranged between the sliding ring 32 and the rotating gear 21, the return spring 34 is sleeved on the stand column 33, and the two ends of the return spring 34 are fixed on the rotating gear 21 and the sliding ring 32 respectively, a traction rope 31 is arranged on the sliding ring 32, one end of the traction rope 31 is fixed on the sliding ring 32, and the other end of the traction rope 31 is provided with a clamping assembly, the clamping assembly comprises four connecting rods 22, the four connecting rods 22 are connected with each other to form a parallelogram structure, the ends of the four connecting rods 22 are rotatably connected with each other, a first rotating shaft 23 and a second rotating shaft 27 are arranged on the two opposite corners of the parallelogram structure respectively, the first rotating shaft 23 connects the parallelogram structure to the guide ring 15, the other end of the traction rope 31 is connected to one end of the second rotating shaft 27, a first vertical plate 30 is arranged on the guide plate 14 close to the rotating gear 21, and the traction rope 31 passes through the first vertical plate 30, when the slide plate 18 extrudes the sliding ring 32 downwards, the sliding ring 32 drives the traction rope 31 to move, thereby pulling one corner of the parallelogram structure, and thereby making the two corners adjacent to the pulled corner close to the middle part, so as to clamp and fix the hanger 12.

[0024] The working principle of the above technical scheme is as follows: When the position of the lifting rope 12 is fixed, that is, the uterus 2 is suspended and positioned, at this time, only the sliding plate 18 is driven downward by the locking nut 17, and then the sliding ring 32 is driven downward, that is, under the action of the first vertical plate 30, the traction rope 31 is moved, and then one corner of the parallelogram structure is pulled. Since the parallelogram does not have stability, the other two corners of the parallelogram structure will move towards the middle to clamp the lower part of the lifting rope 12 (a friction plate with high friction can be provided on the clamping surface to improve the anti-skid effect when clamping), that is, when the medical staff touches the upper lifting rope 12, the movement and deformation of the upper lifting rope 12 will not be transmitted to the lower lifting rope 12, that is, it will not affect the suspension and positioning of the uterus 2, and the suspension and positioning effect of the uterus 2 is guaranteed. Under the action of the reset spring 34, when the sliding plate 18 moves upward, the reset spring 34 drives the traction rope 31 to move upward, and then contacts and clamps the lifting rope 12. It is not difficult to understand that the lifting rope 12 is located above the operation area, and when operating the surgical instrument and other components, the lifting rope 12 is easily touched, which causes the lifting rope 12 to move the uterus 2. Not only will it cause damage to the uterus 2, but it will also damage the positioning effect of the uterus 2, so the above structure is proposed. The above structure cleverly uses the downward movement distance of the locking gear 19 during the process of limiting the downward movement of the rotating gear 21 to drive the traction rope 31 to move, and then clamp the lifting rope 12, that is, the clamping efficiency is high, and the linkage structure design is clever.

[0025] In an implementable manner, the guide plate 14 is provided with a sliding groove 24, the sliding groove 24 is provided with a sliding block 26, the other end of the second rotating shaft 27 is fixed on the sliding block 26, the sliding block 26 is provided with a light rod 25, the sliding block 26 is slidingly connected to the light rod 25, the two ends of the light rod 25 are fixedly connected to the two ends of the sliding groove 24, and the light rod 25 is sleeved with a telescopic spring 36. The two ends of the telescopic spring 36 are fixed on the sliding block 26 and the end of the sliding groove 24 close to the rotating gear 21 respectively.

[0026] The light rod 25 limits the sliding block 26 in the sliding groove 24, and during the movement of the traction rope 31 driving the second rotating shaft 27, the sliding block 26 moves and compresses the telescopic spring 36. When the traction rope 31 loses the driving force, the telescopic spring 36 drives the sliding block 26 to reset, and then drives the second rotating shaft 27 to reset, and then drives the parallelogram structure to reset, and then separates from the contact with the lifting rope 12, and then quickly contacts and clamps the lifting rope 12.

[0027] In an implementable manner, the second rotating shaft 27 is provided with a connecting block 28 at the end connected with the traction rope 31, the connecting block 28 is fixed on the second rotating shaft 27, and the other end of the traction rope 31 is fixed on the connecting block 28. The setting of the connecting block 28 improves the connection effect of the second rotating shaft 27, the traction rope 31 and the sliding block 26.

[0028] In an implementable mode, the lower part of the slide plate 18 is provided with a supporting spring 20 sleeved on the threaded column 16, the two ends of the supporting spring 20 are fixed on the locking gear 19 and the supporting plate 13 respectively, the setting of the supporting spring 20 can ensure that the locking gear 19 is disengaged from the rotating gear 21 in normal state, and the convenience of rotating the rotating gear 21 is improved, it is not difficult to understand that the accommodating groove is preferably arranged on the locking gear 19, when the locking nut 17 moves downward, the supporting spring 20 is compressed into the accommodating groove, that is, the contact and extrusion effect of the locking gear 19 and the supporting plate 13 is ensured, and then the friction is improved, and then the meshing locking effect on the rotating gear 21 is ensured.

[0029] In an implementable mode, the guide plate 14 is also provided with a plurality of second vertical plates 29, the height of the second vertical plate 29 is less than the height of the first vertical plate 30, the traction rope 31 is arranged through the plurality of second vertical plates 29, and the second vertical plate 29 guides the arrangement of the traction rope 31 to make it arranged close to the surface of the guide plate 14.

[0030] In an implementable mode, the end of the column 33 above the slip ring 32 is provided with a baffle 35 fixed on the column 33, so as to avoid the slip ring 32 from being separated from the column 33.

[0031] Of course, it is not difficult to understand that the technical scheme can also be applied to surgical treatment of patients with uterine prolapse, the principle of which is to suspend and fix the prolapsed uterus to a suitable position in the pelvic cavity through suspension surgery, so that the uterus does not prolapse when the patient stands and moves, so as to achieve the purpose of surgery. The technical scheme is used to assist the surgeon in the single-hole laparoscopic surgery to pre-position the prolapsed uterus to a suitable position in the pelvic cavity and temporarily fix it, so as to assist the surgeon in the subsequent surgery to suspend and fix the uterus in the pelvic cavity.

[0032] Finally, it should be explained that the above preferred embodiments are only used to illustrate the technical scheme of the present application but not to limit it, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A positioning device for single port laparoscopic uterine suspension, characterized by: The posture adjusting assembly and the suspension assembly are arranged on the posture adjusting assembly, and the posture adjusting assembly is used to change the spatial position of the suspension assembly; the suspension assembly comprises a circular mounting plate arranged above the posture adjusting assembly, an arc-shaped ring is arranged on the edge of the circular mounting plate, a plurality of hanging ropes are arranged on the arc-shaped ring, one end of the hanging rope is arranged through the arc-shaped plate, and the other end of the hanging rope is arranged downwardly and suspendingly; the lower part of the posture adjusting assembly is provided with a supporting plate, one end of the supporting plate is fixed on the posture adjusting assembly, a plurality of guide plates are arranged on the other end of the supporting plate, one end of the guide plate is connected to the supporting plate, a guide ring is arranged on the other end of the guide plate, and the other end of the hanging rope is located in the guide ring; The posture adjusting assembly comprises a U-shaped pipe, a locking bolt is symmetrically arranged on the outer side of the U-shaped pipe, the locking bolt is threadedly connected to the U-shaped pipe, a clamping plate is arranged on the threaded end of the locking bolt, the clamping plate is located in the U-shaped pipe, and the clamping plate is used to clamp and fix on the operating bed, a lifting rod is vertically arranged on the U-shaped pipe, one end of the lifting rod is fixed to the U-shaped pipe, a rotating plate is arranged on the other end of the lifting rod, one end of the rotating plate is rotatably connected to the end of the lifting rod, an installation rod is arranged on the other end of the rotating plate, the circular mounting plate is fixed to the upper end of the installation rod, and the supporting plate is fixed to the lower end of the installation rod.

2. The positioning device for single hole laparoscopic uterine suspension according to claim 1, characterized in that: A threaded column is arranged on the other end of the supporting plate, one end of the threaded column is fixed to the supporting plate, a locking nut is arranged on the other end of the threaded column, a sliding plate is arranged below the locking nut, the middle part of the sliding plate is slidably connected to the threaded column, a locking gear is arranged on the lower surface of the sliding plate, the middle part of the locking gear is sleeved and arranged on the threaded column, the upper end surface of the locking gear is fixed to the lower surface of the sliding plate, a rotating gear is arranged on the end of the guide plate connected to the supporting plate, a stand column is arranged on the middle part of the rotating gear, one end of the stand column is fixed to the supporting plate, and the middle part of the rotating gear is rotatably connected to the stand column.

3. The positioning device for single hole laparoscopic uterine suspension according to claim 2, characterized in that: A sliding ring is slidably sleeved on the stand column, the sliding ring is arranged below the sliding plate, a return spring is arranged between the sliding ring and the rotating gear, the return spring is sleeved and arranged on the stand column, and the two ends of the return spring are respectively fixed to the rotating gear and the sliding ring, a traction rope is arranged on the sliding ring, one end of the traction rope is fixed to the sliding ring, a clamping assembly is arranged on the other end of the traction rope, the clamping assembly comprises four connecting rods, the four connecting rods are connected to each other to form a parallelogram structure, the ends of the four connecting rods are rotatably connected to each other, a first rotating shaft and a second rotating shaft are respectively arranged on the two opposite corners of the parallelogram structure, the first rotating shaft connects the parallelogram structure to the guide ring, the other end of the traction rope is connected to one end of the second rotating shaft, a first stand plate is arranged on the guide plate close to the rotating gear, the traction rope passes through the first stand plate, when the sliding plate presses the sliding ring downwardly, the sliding ring drives the traction rope to move, thereby pulling one corner of the parallelogram structure, and thereby making the two corners adjacent to the pulled corner close to the middle part, and the hanging rope is clamped and fixed.

4. The positioning device for single hole laparoscopic uterine suspension according to claim 3, characterized in that: The guide plate is provided with a sliding slot, the sliding slot is provided with a sliding block, the other end of the second rotating shaft is fixed on the sliding block, the sliding block is provided with a light pole, the sliding block is slidingly connected to the light pole, the two ends of the light pole are fixedly connected to the two ends of the sliding slot, the light pole is provided with a telescopic spring, and the two ends of the telescopic spring are fixed on the sliding block and the end of the sliding slot close to the rotating gear respectively.

5. The positioning device for single hole laparoscopic uterine suspension according to claim 4, characterized in that: The second rotating shaft is provided with a connecting block on the end connected with the traction rope, the connecting block is fixed on the second rotating shaft, and the other end of the traction rope is fixed on the connecting block.

6. The positioning device for single hole laparoscopic uterine suspension according to claim 2, characterized in that: The lower side of the sliding plate is provided with a supporting spring, the supporting spring is sleeved with a red paper on the threaded column, and the two ends of the supporting spring are fixed on the locking gear and the supporting plate respectively.

7. The positioning device for single hole laparoscopic uterine suspension according to claim 3, characterized in that: The guide plate is also provided with a plurality of second vertical plates, the height of the second vertical plate is less than the height of the first vertical plate, and the traction rope passes through the plurality of second vertical plates.

8. The positioning device for single hole laparoscopic uterine suspension according to claim 3, characterized in that: The end of the stand above the sliding ring is provided with a baffle, and the baffle is fixed on the stand.

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