Uterus placement traction device under laparoscope

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a laparoscopic uterus positioning traction device which comprises a handle assembly, a strip-shaped support fixed to one end of the handle assembly and a uterus lifting assembly hinged to and movably arranged at the free end of the strip-shaped support. The uterus lifting assembly comprises a uterus swinging rod hinged to one end of the strip-shaped support and rotating in the vertical plane and a plurality of first movable blocks arranged in the circumferential direction of the uterus swinging rod, the outer surface of the uterus swinging rod is fixedly sleeved with a fixing disc coaxial with the uterus swinging rod, and a plurality of grooves are formed in the surface of the outer ring of the fixing disc. Each first movable block is in a strip shape and is arranged along the axis of the uterus swinging rod, all the first movable blocks are jointly sleeved with an elastic connecting sleeve which is coaxially arranged with the uterus swinging rod, the ends, close to the strip-shaped support, of the multiple first movable blocks are all connected with pull ropes, and the free ends of the pull ropes are jointly connected with a winding roller. The problem that the size of the uterus lifting cup cannot be adjusted in the current uterus traction operation process can be effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a laparoscopic uterine positioning and traction device. Background Art

[0002] During the current hysterectomy and related surgeries, a laparoscope and a uterine manipulator are usually used to allow the surgeon to swing the uterus more conveniently and quickly for surgery. However, the use of a uterine manipulator may squeeze the cancerous tissue and increase the risk of cancer cell spread. If the cancer is large or located in the cervical canal or the cancer involves the uterine cavity, the uterine manipulator may cause cancer cells to move from the cervix to the uterine cavity and then through the fallopian tube into the abdominal cavity. At the same time, the use of a uterine manipulator to swing the patient's uterus will also compress and damage the vaginal wall, posing some safety hazards. For this reason, a Chinese patent discloses a laparoscopic uterine positioning and traction device (patent announcement number: CN116492035A), which can be bent and changed by setting a flexible hose. The device has a deformable shape, and an axially movable hinge point is arranged in the central guide rod. By changing the position of the hinge point, a traction point with sufficient accuracy and without excessive bending of the patient's vagina and uterus can be obtained, so that the device can adapt to the body structure of different patients, and the operation is flexible and accurate. A main uterine cavity support balloon and a secondary uterine cavity support balloon are also arranged. The connection points of the main uterine cavity support balloon and the secondary uterine cavity support balloon can be axially moved on the swing rod so that the main uterine cavity support balloon and the secondary uterine cavity support balloon can fit the uterine cavity shape of different patients after being inflated. The main uterine cavity support balloon plays a major role in supporting the uterine cavity, and the secondary uterine cavity support balloon wraps the top of the swing rod after being inflated to prevent the swing rod from causing damage to the patient's uterine cavity.

[0003] Although the uterine positioning and traction device in the above technical solution can effectively improve the safety hazards of the existing uterine manipulator, in actual use, due to individual differences between each patient, the diameter of the cervical canal is also different, and the uterine lifting cup in the above device has a fixed size, and it is not possible to select the appropriate uterine lifting cup size according to the differences of each patient. Therefore, the treatment effect during the operation needs to be improved. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a laparoscopic uterine positioning and traction device, which can effectively solve the problem that the size of the uterine lifting cup cannot be adjusted during the current uterine traction surgery.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A laparoscopic uterine positioning and traction device comprises a handle assembly, a strip bracket fixed at one end of the handle assembly, and a uterine lifting assembly hinged and movably arranged at the free end of the strip bracket, the uterine lifting assembly comprises a uterine swing rod hinged at one end of the strip bracket and rotating in a vertical plane, and a plurality of first movable blocks arranged along the circumference of the uterine swing rod, the outer surface of the uterine swing rod is sleeved and fixed with a fixed disk coaxial therewith, the outer ring surface of the fixed disk is provided with a plurality of grooves corresponding to the first movable blocks one by one, the plurality of grooves are evenly arranged around the circumference of the uterine swing rod, each of the first movable blocks is strip-shaped and arranged along the axis of the uterine swing rod, and each first movable block is arranged in a corresponding groove The first movable block is elastically rotatably connected to the fixed disk, wherein each of the first movable blocks rotates in a vertical plane corresponding to the radial direction of the fixed disk, and all the first movable blocks are jointly provided with an elastic connecting sleeve coaxially arranged with the swinging palace rod. One end of multiple first movable blocks close to the strip bracket is connected with a pull rope, and the free end of each pull rope is commonly connected with a winding roller, and the winding roller is rotatably arranged on the strip bracket, and when the winding roller retracts and releases the pull rope in a rotating manner, each pull rope will simultaneously drive the corresponding first movable block to swing, and when multiple first movable blocks swing, the remaining first movable blocks will be driven to move through the elastic connecting sleeve, so that each first movable block is close to or away from the swinging palace rod at the same time.

[0007] Furthermore, a support plate coaxial with the swing rod is sleeved and fixed on the outer surface of the swing rod, and the support plate is arranged at one end close to the strip bracket, and the surface of the support plate is provided with through holes corresponding to the upper and lower surfaces of the strip bracket, and the two through holes respectively correspond to multiple pull ropes, and one end of the multiple pull ropes are connected to the winding roller after passing through the corresponding through holes, and the fixed plate and the strip bracket are jointly connected with a flexible protective cover sleeved on the outer surface thereof, and part of the pull ropes between the fixed plate and the support plate, and the hinge of the strip bracket and the swing rod are all within the coverage of the flexible protective cover.

[0008] Furthermore, each of the first movable blocks has one end away from the strip bracket and is inclined toward the axis of the swing rod, and a receiving groove is provided on the surface of the inclined part of each first movable block away from the swing rod, and a second movable block is elastically hinged in each of the receiving grooves, wherein air bags abutting the surface of the second movable block are placed in all of the receiving grooves, each of the air bags is connected to an air pump, and when the air bags are inflated, they will abut the free end of the second movable block and move it away from the first movable block, and a plurality of through holes corresponding to the second movable blocks are provided on the outer surface of the elastic connecting sleeve.

[0009] Further, when one end of each of the first movable blocks away from the bar bracket drives the elastic connecting sleeve to abut the surface of the swing rod, one side surface of each first movable block abuts against one side surface of the groove; when one end of each of the first movable blocks away from the bar bracket drives the elastic connecting sleeve to expand to the maximum size, one side surface of each first movable block abuts against the surface of the groove.

[0010] Furthermore, a fixed cylinder is sleeved and slidably connected to one end of the swing rod close to the strip bracket, the diameter of the fixed cylinder is larger than the swing rod, and the support plate is coaxially arranged on the outer surface of the fixed cylinder, the end of the fixed cylinder away from the swing rod and the end adjacent to the strip bracket are hinged to each other, the fixed cylinder is wrapped by the flexible protective cover, and the sealed chamber formed between the inside of the fixed cylinder and the end face of the swing rod is connected to an air pump.

[0011] Furthermore, a driving gear is coaxially sleeved on the outer surface of the swing rod, and the driving gear is rotatably arranged on a side surface of the fixed plate close to the supporting plate. A transmission mechanism is connected between one end of any two first movable blocks symmetrically arranged about the axis of the swing rod and the driving gear, and when the driving gear rotates, the two first movable blocks are synchronously driven to swing through the transmission mechanism. A limiting member for limiting the rotation of the driving gear is also connected to the surface of the fixed plate, and the driving gear, the transmission mechanism and the limiting member are all within the coverage range of the flexible protective cover.

[0012] Furthermore, one end of the elastic connecting sleeve and two adjacent ends of the flexible protective sleeve are spliced ​​with each other.

[0013] The beneficial effects of the present invention are:

[0014] 1. The present invention has a fixed plate sleeved on the outer surface of the swing rod and fixedly connected thereto, and a plurality of first movable blocks evenly spaced in the circumferential direction are movably hinged on the circumferential side surface of the fixed plate, and the outer surfaces of all the first movable blocks are covered with an elastic connecting sleeve coaxially arranged with the swing rod. A pull rope and a rotating roller for winding the pull rope are connected at one end of the first movable block to control the swing angle of the first movable block, and the opening size of one end of the elastic connecting sleeve can be adjusted within a certain range. Subsequently, the patient's cervix can be clamped and pulled and swung by elastic deformation of the elastic connecting sleeve, thereby effectively improving the scope of application of the present invention and being suitable for the traction and swinging of cervixes of different sizes to a certain extent.

[0015] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0017] Figure 1 This is a schematic diagram of the structure of the uterine positioning and traction device of the present invention;

[0018] Figure 2 The structure of the uterine lifting component of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0020] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0021] Figure 5 The structure of the uterine lifting component of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the folded structure of the elastic connecting sleeve of the present invention;

[0023] Figure 7 It is a schematic diagram of the swing range of the first movable block of the present invention.

[0024] The following are marked in the accompanying drawings:

[0025] 1 handle assembly, 2 strip bracket, 3 uterine lifting assembly, 301 uterine swing rod, 302 first movable block, 303 fixed plate, 304 second movable block, 305 airbag, 4 elastic connecting sleeve, 5 pull rope, 6 winding roller, 7 support plate, 8 flexible protective cover, 9 fixed cylinder, 10 driving gear, 11 rack parts. DETAILED DESCRIPTION

[0026] like Figure 1 to Figure 7 As shown,

[0027] A laparoscopic uterine positioning and traction device comprises a handle assembly 1, a strip support 2 fixed to one end of the handle assembly 1, and a uterine lifting assembly 3 hinged and movably arranged at the free end of the strip support 2, wherein the handle assembly 1 is hinged to one end of the strip support 2, and the uterine lifting assembly 3 is hinged to the other end of the strip support 2, and the handle assembly 1 is connected with a linkage structure for driving the uterine lifting assembly 3 to swing in a vertical plane, the linkage structure is arranged in the strip support 2, and the uterine lifting assembly 3 comprises a uterine swing rod 301 hinged to one end of the strip support 2 and rotating in the vertical plane, and a uterine swing rod 301 is arranged along the uterine swing rod 301. Six first movable blocks 302 are evenly spaced around the axis (wherein, the structure in which the handle assembly 1 is controlled and the handle assembly 1 drives the swing rod 301 to move through the linkage structure is already a prior art and will not be described in detail). A fixed plate 303 coaxial with the swing rod 301 is sleeved and welded on the outer surface of the swing rod 301. A plurality of six grooves corresponding to the first movable blocks 302 are formed on the outer surface of the fixed plate 303. Each of the first movable blocks 302 is in a strip shape and is arranged along the axis of the swing rod 301. Each of the first movable blocks 302 is arranged in a corresponding groove and The first movable blocks 302 are elastically rotatably connected to the fixed plate 303, and a torsion spring is arranged between the rotating shaft of each first movable block 302 and the fixed plate 303, wherein each of the first movable blocks 302 rotates in a vertical plane corresponding to the radial direction of the fixed plate 303 (in the absence of external interference, one end of the first movable block 302 abuts against the outer surface of the swing rod 301 under the action of the torsion spring), and all the first movable blocks 302 are jointly sleeved with an elastic connecting sleeve 4 coaxially arranged with the swing rod 301, and the elastic connecting sleeve 4 is made of medical grade rubber material, and the four first movable blocks 302 are close to the strip bracket 2. One end of each pull rope 5 protrudes from the surface of the fixed disk 303 by a distance, and is fixedly connected to a pull rope 5, and the free end of each pull rope 5 is commonly connected to a winding roller 6, the axis of the winding roller 6 is rotatably arranged on the strip bracket 2 along the width direction of the strip bracket 2, and when the winding roller 6 retracts and releases the pull rope 5 in a rotating manner, each pull rope 5 will simultaneously drive the corresponding first movable block 302 to swing around the rotation axis, and when multiple first movable blocks 302 swing, the remaining first movable blocks 302 will be driven to move synchronously through the elastic connecting sleeve 4, so that each first movable block 302 is close to or away from the swinging palace rod 301 at the same time;

[0028] Among them, a limiting mechanism for limiting the rotation of the winding roller 6 is provided on the strip bracket 2. The limiting mechanism can adopt existing known structures such as a card block and a card slot, which will not be elaborated here.

[0029] As shown in the figure, when using the present device, first adjust the winding roller 6 and release the pull rope 5 to the maximum length. At this time, each first movable block 302 will maintain an inclined state under the action of the torsion spring, and one end of each first movable block 302 away from the fixed plate 303 will abut against the surface of the swing rod 301. Since the outer surfaces of all the first movable blocks 302 are jointly sleeved with an annular elastic connecting sleeve 4, the elastic connecting sleeve 4 can cover the vacant part between any two adjacent first movable blocks 302 and form a sphere similar to an annular shape. Moreover, the shape of the elastic connecting sleeve 4 can change accordingly with the swing angle of the first movable block 302; after adjusting the position of the first movable block 302, one end of the uterine lifting assembly 3 is slowly placed into the patient's vagina and moves toward the cervix. When it approaches the cervix, the winding roller 6 is rotated and the pull rope 5 is wound around its surface. When the pull rope 5 is wound, it will drive the first movable block 302 connected thereto to move. The end of the first movable block 302 away from the fixed disk 303 swings in the direction away from the uterine swing rod 301, and the four first movable blocks connected to the pull rope 5 are The movable block 302 will synchronously drive the remaining first movable blocks 302 to make the same movement through the action of the elastic connecting sleeve 4. At this time, the end of the elastic connecting sleeve 4 close to the cervix will be stretched open and spaced apart from the swing rod 301. The length of the pull rope 5 is retracted and released by the winding roller 6 to indirectly control the swing amplitude of each first movable block 302 and the size of the opening at one end of the elastic connecting piece, so as to adapt to cervixes of different sizes. When the size of the elastic connecting sleeve 4 stretched open is able to accommodate the cervix, the winding roller 6 stops rotating and maintains the current state, and continues to control the handle assembly 1 and The swinging uterus rod 301 is driven to move toward the cervix until the cervix completely enters the elastic connection sleeve 4 (one end of the elastic connection sleeve 4 is located at the vaginal fornix). At this time, the push is stopped, and the winding roller 6 can continue to be rotated and the pull rope 5 can be released. One end of the elastic connection sleeve 4 will be tightened and abut against the outer surface of the cervical os under the drive of the first movable block 302. At this time, the elastic connection sleeve 4 and the swinging uterus rod 301 clamp the cervical os together. Not only can the cervical os be swung by controlling the angle of the handle assembly 1 to achieve the purpose of exposing the vaginal fornix, but hysterectomy can also be performed, etc. When the operation is over, the winding roller 6 is rotated again to make the opening of one end of the elastic connection sleeve 4 larger and no longer abut against the cervical os, and the uterine lifting assembly 3 can be taken out.

[0030] In this embodiment, the outer surface of the swing rod 301 is also sleeved and welded with a support plate 7 coaxial with the swing rod 301. The diameter of the support plate 7 is smaller than the fixed plate 303, and the support plate 7 is arranged at one end close to the strip bracket 2 and spaced apart from the fixed plate 303. The surface of the support plate 7 is provided with two through holes corresponding to the upper and lower side surfaces of the strip bracket 2. The two through holes respectively correspond to the multiple pull ropes 5, and one ends of the multiple pull ropes 5 are connected to the winding roller 6 after passing through the corresponding through holes. The fixed plate 303 and the strip bracket 2 are commonly connected with a flexible protective cover 8 sleeved on their outer surfaces. The flexible protective cover 8 can be made of medical grade plastic material. Part of the pull ropes 5 between the fixed plate 303 and the support plate 7, and the hinges of the strip bracket 2 and the swing rod 301 are all within the coverage of the flexible protective cover 8.

[0031] As shown in the figure, the setting of the support plate 7 can guide the pull rope 5 so that the pull rope 5 moves along a predetermined trajectory, and a flexible protective cover 8 is provided on the outside of the pull rope 5 to prevent the pull rope 5 from causing damage to the inner wall of the patient's vagina when moving. The flexible protective cover 8 also covers the hinge between the uterine swing rod 301 and the strip bracket 2, which can also effectively prevent the uterine swing rod 301 from causing damage to the patient when moving, thereby improving the safety of the uterine lifting assembly 3 when in use.

[0032] In this embodiment, one end of each of the first movable blocks 302 away from the strip bracket 2 is inclined toward the axis of the swing rod 301, and a long strip-shaped receiving groove is provided on the side surface of the inclined part of each first movable block 302 away from the swing rod 301, and the receiving groove is arranged along the length direction of the first movable block 302, and a second movable block 304 is elastically hinged in each of the receiving grooves, wherein an air bag 305 abutting against the surface of the second movable block 304 is placed in each of the receiving grooves, and all the air bags 305 are connected to an air pump installed on the ground through a hose (the hose is also arranged on the inner side of the flexible protective cover 8 and is placed along the arrangement trajectory of the pull rope 5), and when the air bag 305 is inflated, it will abut against the free end of the second movable block 304 and make it move in the direction away from the first movable block 302, wherein the free end of the second movable block 304 will protrude from the outer surface of the first movable block 302 when it rotates, and the outer surface of the elastic connecting sleeve 4 is provided with a plurality of through holes corresponding to the second movable blocks 304 one by one.

[0033] As shown in the figure, when one end of all the first movable blocks 302 are folded and abut against the outer surface of the swing rod 301, the inclined portion of the first movable block 302 cooperates with the elastic connecting sleeve 4 to form a closed surface (combined Figure 6As shown in the figure, at this time, this surface can be abutted against the cervical opening and the vaginal vault can be lifted up, which can clearly show the relationship between the main ligament and the uterosacral ligament and the cervix, accurately cut the connection between the ligament and the cervix, and refer to the edge of the elastic connecting sleeve 4 to determine the position of processing the main ligament, further improving the scope of application of the present invention; when all the first movable blocks 302 are unfolded and drive one end of the elastic connecting sleeve 4 to open synchronously, the air bag 305 in each accommodating groove can be inflated and abutted against the free end of the second movable block 304, so that the free end of the second movable block 304 protrudes from the surface of the first movable block 302 and abuts against the inner wall of the vagina. When the elastic connecting sleeve 4 is located at the vaginal vault, the free end of the second movable block 304 can open and space one side surface of the elastic connecting sleeve 4 from the vaginal vault, which can further expose the field of view at the vaginal vault (when used with an endoscope), can provide a better environment for surgery, and improve the accuracy and work efficiency of the surgery.

[0034] In this embodiment, when the end of each of the first movable blocks 302 away from the bar bracket 2 drives the elastic connecting sleeve 4 to abut the surface of the swing rod 301, one side surface of each first movable block 302 abuts against one side surface of the groove; when the end of each of the first movable blocks 302 away from the bar bracket 2 drives the elastic connecting sleeve 4 to expand to the maximum size, one side surface of each first movable block 302 abuts against the surface of the groove.

[0035] When one end of each first movable block 302 drives the elastic connecting sleeve 4 to abut against the surface of the swinging rod 301, at this time, one end of the elastic connecting sleeve 4 is in a closed state, and one side surface of each first movable block 302 abuts against the upper side surface of the groove at the same time (combined with Figure 7 When the pull rope 5 is tightened and the first movable block 302 is driven to swing to the maximum angle, one end of the elastic connecting sleeve 4 is also expanded to the maximum state. At this time, one side surface of each first movable block 302 is simultaneously in contact with the lower side surface of the groove (combined with Figure 7 The portion indicated by the dotted line in the middle) can limit the swing range of the first movable block 302, thereby controlling the deployment range of the elastic connecting sleeve 4.

[0036] In this embodiment, a fixed cylinder 9 is sleeved and slidably connected to one end of the swing rod 301 close to the strip bracket 2, the diameter of the fixed cylinder 9 is larger than the swing rod 301, and the support plate 7 is coaxially arranged and welded to the outer surface of the fixed cylinder 9, the end of the fixed cylinder 9 away from the swing rod 301 and the end adjacent to the strip bracket 2 are hinged to each other, the fixed cylinder 9 is wrapped by the flexible protective cover 8, and the sealed chamber formed between the interior of the fixed cylinder 9 and the end face of the swing rod 301 is connected to a hose located outside, and one end of the hose is connected to an air pump, wherein one end of the hose is guided by the strip bracket 2 and connected to an external air pump (of course, its specific implementation method is already a prior art and will not be elaborated in detail).

[0037] As shown in the figure, the swing rod 301 is slidably inserted into one end of the fixed tube 9, and the sealed chamber composed of one end surface of the swing rod 301 and the inside of the fixed tube 9 is inflated and deflated by an air pump, so that the distance that the swing rod 301 extends out of the fixed tube 9 can be adjusted, and then the swing rod 301 can be adjusted to drive the first movable block 302 and the elastic connecting sleeve 4 to abut the cervix with different telescopic lengths. It is also possible to adjust the hinge points of the fixed tube 9 and the strip bracket 2 at different positions in the vagina within a certain range when the first movable block 302 swings the cervix, which can further improve the scope of application of the device and be applied to vaginas and cervixes of different sizes within a certain range; of course, when adjusting the telescopic length of the swing rod 301 and the angle of the swing rod 301, it is necessary to control the winding roller 6 to release the pull rope 5 and leave a margin. When the position and angle adjustment of the swing rod 301 are completed, the winding roller 6 is controlled again to tighten the pull rope 5.

[0038] In this embodiment, the outer surface of the swing lever 301 is coaxially sleeved with a driving gear 10, and the driving gear 10 is rotatably arranged on a side surface of the fixed plate 303 close to the support plate 7. A transmission mechanism is connected between one end of any two first movable blocks 302 symmetrically arranged about the axis of the swing lever 301 and the driving gear 10. Of course, one end of these two first movable blocks 302 is not connected to the pull rope 5, wherein the transmission mechanism includes two rack parts 11 meshing with the driving gear 10 and a connecting block hinged between the rack part 11 and the first movable block 302. The two rack parts 11 are symmetrically arranged about the axis center of the driving gear 10. One end of the two rack parts 11 is hinged to the corresponding first movable blocks 302 through the connecting block. When the driving gear 10 rotates, the two first movable blocks 302 are synchronously driven to swing through the transmission mechanism. The surface of the fixed disk 303 is also connected to a limiter for limiting the rotation of the driving gear 10. The limiter adopts an electromagnet (the electromagnet is blocked in the figure and is not shown). The driving gear 10, the transmission mechanism and the limiter are all within the coverage of the flexible protective cover 8.

[0039] The driving gear 10 is made of iron material and cooperates with the electromagnet; when the electromagnet is powered off, the pull rope 5 drives the corresponding first movable block 302 to deflect, and at the same time drives the two first movable blocks 302 that are not connected to the pull rope 5 to deflect synchronously through the elastic connecting sleeve 4. At this time, the driving gear 10 will rotate through the transmission mechanism; when the electromagnet is powered on, it will absorb the driving gear 10 and fix it. The two first movable blocks 302 connected to the driving gear 10 through the transmission mechanism will remain in the current state at this time. Similarly, the remaining four first movable blocks 302 will also be in the elastic connection. The current position is maintained under the action of the sleeve 4. The advantage of doing so is that when each first movable block 302 is adjusted to a specified angle through the cooperation of the elastic connecting sleeve 4 and the pull rope 5, the electromagnet can be energized to make the elastic connecting sleeve 4 and the first movable block 302 maintain the current position. At this time, the winding roller 6 can be controlled to release a small section of the pull rope 5 to facilitate the adjustment of the angle of the pendulum rod 301. In other words, the problem of not being able to adjust the angle of the pendulum rod 301 and the strip bracket 2 after the angle of the first movable block 302 is adjusted by the pull rope 5 is overcome, thereby improving the flexibility of the device when used.

[0040] In this embodiment, one end of the elastic connecting sleeve 4 and the two adjacent ends of the flexible protective sleeve 8 are spliced ​​with each other, which can further enhance the stability of the two and effectively cover the hinge between the swing rod 301 and the strip bracket 2 and the first movable block 302 and other parts to prevent them from causing damage to the patient during operation.

[0041] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention 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 invention.

Claims

1. A laparoscopic uterine positioning and traction device, comprising a handle assembly (1), a strip support (2) fixed to one end of the handle assembly (1), and a uterine lifting assembly (3) hinged and movably arranged at the free end of the strip support (2), characterized in that: The uterine lifting assembly (3) comprises a uterine swing rod (301) hinged at one end of a strip-shaped bracket (2) and rotating in a vertical plane, and a plurality of first movable blocks (302) arranged along the circumference of the uterine swing rod (301); a fixed plate (303) coaxial with the uterine swing rod (301) is sleeved and fixed on the outer surface of the uterine swing rod (301); a plurality of grooves corresponding to the first movable blocks (302) are opened on the outer ring surface of the fixed plate (303); the plurality of grooves are evenly arranged around the circumference of the uterine swing rod (301); each of the first movable blocks (302) is strip-shaped and arranged along the axis of the uterine swing rod (301); each of the first movable blocks (302) is arranged in a corresponding groove and is elastically rotatably connected to the fixed plate (303); wherein each of the first movable blocks (302) is on the fixed plate (30 3) rotate in a vertical plane corresponding to the radial direction, all the first movable blocks (302) are jointly sleeved with an elastic connecting sleeve (4) coaxially arranged with the swinging rod (301), and the ends of the plurality of first movable blocks (302) close to the strip bracket (2) are connected with a pull rope (5), and the free end of each pull rope (5) is jointly connected with a winding roller (6), and the winding roller (6) is rotatably arranged on the strip bracket (2), and when the winding roller (6) retracts and releases the pull rope (5) in a rotating manner, each pull rope (5) will simultaneously drive the corresponding first movable block (302) to swing, and when the plurality of first movable blocks (302) swing, the remaining first movable blocks (302) will be driven to move through the elastic connecting sleeve (4), so that each first movable block (302) is simultaneously close to or away from the swinging rod (301).

2. The laparoscopic uterine positioning and traction device according to claim 1, characterized in that: The outer surface of the swing rod (301) is also sleeved and fixed with a support plate (7) coaxial therewith, and the support plate (7) is arranged at one end close to the strip bracket (2), and the surface of the support plate (7) is provided with through holes corresponding to the upper and lower surfaces of the strip bracket (2), and the two through holes correspond to a plurality of pull ropes (5) respectively, and one end of the plurality of pull ropes (5) is connected to the winding roller (6) after passing through the corresponding through holes, and the fixed plate (303) and the strip bracket (2) are commonly connected with a flexible protective cover (8) sleeved on their outer surfaces, and part of the pull ropes (5) between the fixed plate (303) and the support plate (7), and the hinged joints of the strip bracket (2) and the swing rod (301) are all within the coverage of the flexible protective cover (8).

3. The laparoscopic uterine positioning and traction device according to claim 2, characterized in that: The end of each first movable block (302) away from the strip bracket (2) is tilted toward the axis of the swing rod (301), and a receiving groove is provided on the surface of the inclined part of each first movable block (302) away from the swing rod (301), and a second movable block (304) is elastically hinged in each of the receiving grooves, wherein an air bag (305) abutting against the surface of the second movable block (304) is placed in each of the receiving grooves, and all of the air bags (305) are connected to an air pump, and when the air bags (305) are inflated, they abut against the free end of the second movable block (304) and move it in a direction away from the first movable block (302), and the outer surface of the elastic connecting sleeve (4) is provided with a plurality of through holes corresponding to the second movable blocks (304) one by one.

4. The laparoscopic uterine positioning and traction device according to claim 3, characterized in that: When the end of each of the first movable blocks (302) away from the bar bracket (2) drives the elastic connecting sleeve (4) to abut against the surface of the swing rod (301), one side surface of each of the first movable blocks (302) abuts against one side surface of the groove; when the end of each of the first movable blocks (302) away from the bar bracket (2) drives the elastic connecting sleeve (4) to expand to the maximum size, one side surface of each of the first movable blocks (302) abuts against the surface of the groove.

5. The laparoscopic uterine positioning and traction device according to claim 4, characterized in that: A fixed cylinder (9) is sleeved and slidably connected to one end of the swing rod (301) close to the strip bracket (2); the diameter of the fixed cylinder (9) is larger than that of the swing rod (301), and the support plate (7) is coaxially arranged on the outer surface of the fixed cylinder (9); one end of the fixed cylinder (9) away from the swing rod (301) and one end adjacent to the strip bracket (2) are hinged to each other; the fixed cylinder (9) is wrapped by the flexible protective cover (8); and a sealed chamber formed between the interior of the fixed cylinder (9) and the end surface of the swing rod (301) is connected to an air pump.

6. The laparoscopic uterine positioning and traction device according to claim 5, characterized in that: The outer surface of the swing lever (301) is coaxially sleeved with a driving gear (10), and the driving gear (10) is rotatably arranged on a side surface of the fixed plate (303) close to the support plate (7). A transmission mechanism is connected between one end of any two first movable blocks (302) symmetrically arranged about the axis of the swing lever (301) and the driving gear (10), and when the driving gear (10) rotates, the two first movable blocks (302) are synchronously driven to swing through the transmission mechanism. A limiting member for limiting the rotation of the driving gear (10) is also connected to the surface of the fixed plate (303), and the driving gear (10), the transmission mechanism and the limiting member are all within the coverage range of the flexible protective cover (8).

7. The laparoscopic uterine positioning and traction device according to claim 6, characterized in that: One end of the elastic connection sleeve (4) and two adjacent ends of the flexible protective sleeve (8) are spliced ​​with each other.

Images