Improved uterus manipulator for laparoscopic panhysterectomy

Abstract

The utility model discloses an improved laparoscopic panhysterectomy uterus manipulator, and relates to the technical field of uterus manipulators, the improved laparoscopic panhysterectomy uterus manipulator comprises a fixing assembly, and the fixing assembly is used for assisting hysterectomy; the fixing assembly comprises a uterus lifting rod; the uterus lifting rod is cylindrical; the limiting assembly is used for stabilizing the shape of the uterus; the limiting assembly comprises a snail angle, a groove and a spring; the number of the snail corners is two, and the snail corners are in a cylinder shape. The lower ends of the snail corners are rotationally connected to the upper end of the uterus lifting rod, and the two snail corners are symmetrically installed. The uterus lifting rod can support the inner wall of the uterus by additionally arranging the limiting assembly and changing the shape of the uterus lifting rod when the uterus lifting rod is used, the success rate of an operation is increased, and the situation that in the operation process, the uterus shakes, and consequently the operation time is prolonged is effectively prevented; the position of the snail angle is limited by additionally arranging the pulling rope, and the opening time and position of the snail angle are controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of uterine manipulators, in particular to an improved uterine manipulator for laparoscopic total hysterectomy. Background Art

[0002] The uterine manipulator, also known as the uterine manipulator, is a commonly used instrument in gynecological surgery. It is mainly used to clamp the uterus to assist in surgical operations such as egg retrieval, tubal fluid perfusion, uterine lifting, and prevention of uterine prolapse. In laparoscopically assisted vaginal hysterectomy, laparoscopic total hysterectomy, and various laparoscopic surgeries, the uterine manipulator also plays an important role in coordinating the positioning of the uterus. It is used for total or subtotal hysterectomy. It mainly includes a central guide rod, a cervical fixator, and a dome cup. The front part of the cervical fixator is provided with a cervical support, and its front end is a threaded cone; the cervical fixator has a central channel axially opened in the cervical fixator, and the central guide rod passes through it; the dome cup is wrapped around the outer periphery of the cervical fixator, and its front inner diameter is greater than or equal to the diameter of the cervical support to form a cup body, and the rear part is narrowed to form a handle. The end of the handle is provided with a screw that can fix the dome cup at a specific position of the cervical fixator. The three different components can be organically combined together to solve the problems encountered during laparoscopic hysterectomy, such as gas leakage after vaginal incision, difficulty in swinging the uterus, and blurred display of the boundary between the cervix and the vaginal wall. It is particularly beneficial for complete removal of the cervix.

[0003] During the use of the uterine manipulator in the prior art, when lifting a large uterus, the central guide rod is not firmly fixed to the uterus, and the uterus will rock back and forth, affecting the doctor's operation and having poor stability. Utility Model Content

[0004] The embodiment of the present application provides an improved uterine manipulator for laparoscopic total hysterectomy, which solves the problem in the prior art that when lifting a large uterus, the central guide rod is not firmly fixed to the uterus, the uterus will rock back and forth, affecting the doctor's operation and having poor stability. During use, a limiting component is added to change the shape of the uterine manipulator to support the inner wall of the uterus, effectively preventing the uterus from rocking during the operation, thereby increasing the operation time and improving the success rate of the operation.

[0005] The embodiment of the present application provides an improved uterine manipulator for laparoscopic total hysterectomy, including a fixing component, wherein the fixing component is used to assist hysterectomy;

[0006] The fixing assembly includes a uterine lifting rod;

[0007] The uterine lifting rod is cylindrical;

[0008] Also included is a restriction component for stabilizing the shape of the uterus;

[0009] The limiting assembly includes a snail horn, a groove and a spring;

[0010] There are two snail horns, each of which is cylindrical;

[0011] The lower end of the snail horn is rotatably connected to the upper end of the uterine lifting rod, and the two snail horns are symmetrically installed;

[0012] A circular protrusion is fixed on the upper end of the snail horn;

[0013] The sides of the two snail horns close to each other are provided with grooves;

[0014] The two ends of the spring are respectively fixed in the grooves of the two snail horns.

[0015] As an improvement, the axis of the snail horn is parallel to the axis of the uterine lifting rod.

[0016] As an improvement, the fixing assembly further comprises a uterine cup, a mounting ring, a fixing ring, a connecting rod, a fixing bolt, a spiral cylinder, a limiting ring and a mounting cylinder;

[0017] The connecting rod is a cylindrical shape that penetrates from top to bottom;

[0018] The spiral cylinder is in the shape of a truncated cone that penetrates from top to bottom, and the lower side of the spiral cylinder is fixed to the upper side of the connecting rod;

[0019] The uterine lifting rod is slidably connected in a cavity formed by the connecting rod and the spiral cylinder, and the snail horn is located in the cavity formed by the connecting rod and the spiral cylinder;

[0020] The spiral cylinder is provided with threads on the outside;

[0021] The installation tube is a cylindrical body that penetrates from top to bottom;

[0022] The limiting ring is in the shape of a cylinder that penetrates from top to bottom, and the inner wall of the limiting ring is fixed to the outer wall of the installation tube;

[0023] The uterine cup is in the shape of a cylinder with an opening at the top, and the mounting ring is in the shape of a cylinder that is connected from top to bottom. The mounting ring is fixed to the lower side of the uterine cup, and the cavity that is connected from top to bottom of the mounting ring is connected to the opening at the top of the uterine cup;

[0024] The installation tube is slidably connected in a cavity that passes through the installation ring from top to bottom, and the limiting ring is located at the lower side of the installation ring;

[0025] The fixing ring is in the shape of a cylinder with an opening at the upper end, and the lower end of the fixing ring has an opening, which is communicated with the opening at the upper end of the fixing ring. The fixing ring is sleeved on the mounting tube through the opening at the lower end, and the bottom side of the opening at the upper end of the fixing ring contacts the lower side of the limiting ring;

[0026] The inner wall of the fixing ring is threadedly connected with the outer wall of the mounting ring;

[0027] One side of the connecting rod and one side of the mounting tube are both provided with fixing bolts, the fixing bolts on one side of the connecting rod pass through the connecting rod and abut against the uterine lifting rod, and the fixing bolts on one side of the connecting rod are located at the lower side of the mounting tube;

[0028] The fixing bolt on one side of the installation tube passes through the installation tube and abuts against the connecting rod, and the fixing bolt on one side of the installation tube is located at the lower side of the fixing ring.

[0029] As an improvement, the axis of the connecting rod and the axis of the uterine lifting rod are on the same straight line;

[0030] The center line of the spiral cylinder and the axis of the uterine lifting rod are on the same straight line;

[0031] The axis of the installation tube and the axis of the uterine lifting rod are on the same straight line;

[0032] The axis of the limiting ring and the axis of the mounting tube are on the same straight line;

[0033] The axis of the mounting ring and the axis of the uterine cup are on the same straight line.

[0034] As an improvement, the axis of the fixing ring and the straight line of its opening are on the same straight line, and the axis of the fixing ring and the axis of the mounting tube are on the same straight line.

[0035] As an improvement, the limiting assembly further includes a traction rope;

[0036] There are two traction ropes, which correspond to the two snail horns one by one. One end of the traction rope is arranged at the top of the two snail horns close to each other, and the end of the traction rope away from the snail horn passes through the axis of the uterine lifting rod and extends to the outside of the lower end of the uterine lifting rod.

[0037] The traction rope is made of nylon.

[0038] As an improvement, the two traction ropes are arranged at one end of the snail horn and pass through the top of the snail horn to be fixed together.

[0039] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0040] First, by adding a limiting component and changing the shape of the uterine lifting rod during use, the inner wall of the uterus is supported, the success rate of the operation is improved, and the shaking of the uterus during the operation is effectively prevented, which increases the operation time.

[0041] Secondly, by adding a traction rope to limit the position of the snail horns, the timing and position of the snail horns opening can be controlled to effectively prevent them from getting stuck on the inner wall of the uterus. At the same time, by pulling the traction rope, the two snail horns can be quickly brought close to each other, which is convenient for retraction and improves safety during use.

[0042] Thirdly, by connecting the upper ends of the two traction ropes to each other, the sagging uterine wall can be intercepted to prevent it from hindering the approach of the two snail horns. At the same time, when the snail horns stretch the uterine wall, the traction rope between the two snail horns can be tightened to support the uterine wall and stabilize its shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a front cross-sectional view of an improved uterine manipulator for laparoscopic total hysterectomy according to the utility model;

[0044] Figure 2 It is a schematic diagram of a spiral cylinder extending out of a restriction component of an improved uterine manipulator for laparoscopic total hysterectomy according to the utility model;

[0045] Figure 3 This is a schematic diagram of the opening of the snail horn of an improved uterine manipulator for laparoscopic total hysterectomy according to the utility model;

[0046] Figure 4 A schematic diagram of a uterine manipulator rod installed on a limiting component of an improved laparoscopic hysterectomy uterine manipulator according to the utility model;

[0047] Figure 5 This is a schematic diagram of a spiral tube installation connecting rod of an improved laparoscopic hysterectomy uterine manipulator of the utility model;

[0048] Figure 6 It is a schematic diagram of the installation tube of the limiting ring of the improved laparoscopic hysterectomy uterine manipulator of the utility model;

[0049] Figure 7 This is a front and cross-sectional view of a fixing ring of an improved uterine manipulator for laparoscopic total hysterectomy according to the utility model;

[0050] Figure 8 This is a schematic diagram of the structure of a uterine lifting cup installed on a fixed ring of an improved uterine lifting device for laparoscopic total hysterectomy according to the utility model;

[0051] Fig. 9 This is a schematic diagram of the installation of a groove on one side of the snail horn of an improved uterine manipulator for laparoscopic total hysterectomy according to the utility model;

[0052] Fig.10 This is a schematic diagram of the installation of a traction rope of an improved uterine manipulator for laparoscopic total hysterectomy according to the utility model;

[0053] Fig.11 The utility model is a schematic diagram of the upper ends of two traction ropes of an improved uterine manipulator for laparoscopic total hysterectomy.

[0054] In the figure: 100, fixing assembly; 110, uterine lifting cup; 120, mounting ring; 130, fixing ring; 140, connecting rod; 150, fixing bolt; 160, spiral cylinder; 170, uterine lifting rod; 180, limiting ring; 190, mounting cylinder;

[0055] 200. Restriction component; 210. Snail horn; 211. Groove; 220. Spring; 230. Towing rope. DETAILED DESCRIPTION

[0056] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0057] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0059] Select a uterine lifting cup 110 of appropriate size, put the uterine lifting cup 110 on the connecting rod 140 through the mounting ring 120, and connect the inner ring of the fixing ring 130 with the outer ring of the mounting ring 120 through the thread to fix the position, then insert one end of the uterine lifting rod 170 with the limiting component 200 into the cavity of the connecting rod 140 that passes through the top and bottom, first insert the spiral tube 160 into the uterus, then pass the upper end of the mounting tube 190 through the lower end of the connecting rod 140, so that the uterine lifting cup 110 is sleeved on the uterine opening The lower end of the connecting rod 140 is fixed in the installation tube 190 by fixing the bolt 150, and the height of the uterine-lifting rod 170 in the connecting rod 140 is adjusted so that the limiting component 200 extends out of the spiral tube 160 and enters the uterus. When the limiting component 200 enters the uterus, the uterus is opened by the snail horns 210, and then the operation is performed. After the operation is completed, the uterine-lifting rod 170 is pulled so that the two snail horns 210 are brought close to each other and retracted into the cavity of the spiral tube 160 and the connecting rod 140.

[0060] Embodiment 1

[0061] like Figure 1-Figure 9 As shown, the present application is an improved uterine manipulator for laparoscopic total hysterectomy, comprising a fixing assembly 100, wherein the fixing assembly 100 is used to assist hysterectomy;

[0062] The fixing assembly 100 includes a uterine lifting rod 170;

[0063] The uterine lifting rod 170 is cylindrical;

[0064] Also included is a restriction component 200, which is used to stabilize the shape of the uterus;

[0065] The limiting assembly 200 includes a snail horn 210, a groove 211 and a spring 220;

[0066] There are two snail horns 210, each of which is cylindrical, and the axis of the snail horn 210 is parallel to the axis of the uterine lifting rod 170;

[0067] The lower end of the snail horn 210 is rotatably connected to the upper end of the uterine lifting rod 170, and the two snail horns 210 are symmetrically installed;

[0068] A circular protrusion is fixed on the upper end of the snail horn 210;

[0069] A groove 211 is formed on one side of the two snail horns 210 that are close to each other;

[0070] The two ends of the spring 220 are respectively fixed in the grooves 211 of the two snail horns 210;

[0071] The fixing assembly 100 also includes a lifting cup 110, a mounting ring 120, a fixing ring 130, a connecting rod 140, a fixing bolt 150, a spiral tube 160, a limiting ring 180 and a mounting tube 190;

[0072] The connecting rod 140 is a cylindrical body that penetrates from top to bottom, and the axis of the connecting rod 140 and the axis of the uterine lifting rod 170 are on the same straight line;

[0073] The spiral cylinder 160 is in the shape of a truncated cone that is connected from top to bottom. The center line of the spiral cylinder 160 and the axis of the uterine lifting rod 170 are on the same straight line. The lower side of the spiral cylinder 160 is fixed to the upper side of the connecting rod 140.

[0074] The uterine lifting rod 170 is slidably connected in a cavity formed by the connecting rod 140 and the spiral cylinder 160, and the snail horn 210 is located in the cavity formed by the connecting rod 140 and the spiral cylinder 160.

[0075] The spiral cylinder 160 has threads on the outside;

[0076] The installation tube 190 is a cylindrical body that is through from top to bottom, and the axis of the installation tube 190 is on the same straight line as the axis of the uterine lifting rod 170;

[0077] The limiting ring 180 is a cylindrical body that penetrates from top to bottom. The axis of the limiting ring 180 and the axis of the mounting tube 190 are on the same straight line. The inner wall of the limiting ring 180 is fixed to the outer wall of the mounting tube 190.

[0078] The uterine cup 110 is a cylindrical body with an opening at the top, and the mounting ring 120 is a cylindrical body that is through-through from top to bottom. The axis of the mounting ring 120 and the axis of the uterine cup 110 are on the same straight line. The mounting ring 120 is fixed to the lower side of the uterine cup 110, and the cavity of the mounting ring 120 that is through-through from top to bottom is connected to the opening at the top of the uterine cup 110.

[0079] The installation tube 190 is slidably connected in a cavity that passes through the installation ring 120 from top to bottom, and the limiting ring 180 is located at the lower side of the installation ring 120;

[0080] The fixing ring 130 is a cylindrical body with an opening at the upper end. The lower end of the fixing ring 130 has an opening, which is communicated with the upper opening of the fixing ring 130. The axis of the fixing ring 130 and the straight line of its opening are on the same straight line. The axis of the fixing ring 130 and the axis of the mounting tube 190 are on the same straight line. The fixing ring 130 is sleeved on the mounting tube 190 through the lower opening of the fixing ring 130. The bottom side of the upper opening of the fixing ring 130 contacts the lower side of the limiting ring 180.

[0081] The inner wall of the fixing ring 130 is threadedly connected to the outer wall of the mounting ring 120;

[0082] One side of the connecting rod 140 and one side of the mounting tube 190 are provided with fixing bolts 150. The fixing bolts 150 on one side of the connecting rod 140 pass through the connecting rod 140 and abut against the uterine lifting rod 170. The fixing bolts 150 on one side of the connecting rod 140 are located at the lower side of the mounting tube 190.

[0083] The fixing bolt 150 on one side of the installation tube 190 passes through the installation tube 190 and abuts against the connecting rod 140 . The fixing bolt 150 on one side of the installation tube 190 is located at the lower side of the fixing ring 130 .

[0084] When in use, first assemble the device, select a uterine lifting cup 110 of appropriate size, put the uterine lifting cup 110 on the connecting rod 140 through the mounting ring 120, and connect the inner ring of the fixing ring 130 with the outer ring of the mounting ring 120 through the thread to fix the position, then insert one end of the uterine lifting rod 170 with the limiting component 200 into the cavity that passes through the connecting rod 140 from top to bottom, first extend it into the uterus through the spiral cylinder 160, then pass the upper end of the mounting cylinder 190 through the lower end of the connecting rod 140, so that the uterine lifting cup 110 is 0 is put on the lower end of the uterine opening, and the position of the connecting rod 140 in the installation tube 190 is fixed by the fixing bolt 150, and the height of the uterine lifting rod 170 in the connecting rod 140 is adjusted to make the limiting component 200 extend out of the spiral tube 160 and enter the uterus. When the limiting component 200 enters the uterus, the uterus is opened by the snail horns 210, and then the operation is performed. After the operation is completed, the uterine lifting rod 170 is pulled to make the two snail horns 210 approach each other and shrink into the cavity of the spiral tube 160 and the connecting rod 140.

[0085] Compared with the prior art, during use, by adding a limiting component 200 and changing the shape of the uterine lifting rod 170, the inner wall of the uterus is supported, the success rate of the operation is improved, and the shaking of the uterus during the operation is effectively prevented, which leads to an increase in the operation time.

[0086] Embodiment 2

[0087] When the first embodiment is in use, the two snail horns 210 and the spring 220 are extended into the uterus to fix the position of the uterus. However, when in use, after the snail horns 210 are extended, the spring 220 gradually pushes the two snail horns 210 apart. After being fully pushed apart, the top of the snail horns 210 may be blocked by the uterine wall before contacting the top of the uterus. At the same time, when the work is completed and the snail horns 210 need to be retracted, a large force is required to pull the uterine lifting rod 170 so that the two snail horns 210 are close to each other and shrink into the cavity of the spiral cylinder 160 and the connecting rod 140. During the pulling process, the snail horns 210 rub against the upper end of the spiral cylinder 160 and are damaged by friction. Based on this, the scheme of the first embodiment is improved, such as Fig.10 As shown:

[0088] The limiting assembly 200 further includes a traction rope 230;

[0089] There are two traction ropes 230, which correspond to the two snail horns 210 respectively. One end of the traction rope 230 is arranged at the top of the side where the two snail horns 210 are close to each other, and the end of the traction rope 230 away from the snail horn 210 passes through the axis of the uterine lifting rod 170 and extends to the outside of the lower end of the uterine lifting rod 170.

[0090] The traction rope 230 is made of nylon.

[0091] When the snail horns 210 are extended into the uterus, the traction rope 230 is pulled to prevent the two snail horns 210 from opening. When the upper ends of the snail horns 210 hit the top of the uterus, the traction rope 230 is loosened to allow the two snail horns 210 to open due to the elastic force of the spring 220 and hit the two ends of the uterus. When it is necessary to retract the snail horns 210, the lower ends of the two traction ropes 230 are pulled to bring the two snail horns 210 close to each other and allow them to enter the spiral cylinder 160 and the connecting rod 140.

[0092] By adding a traction rope 230 to limit the position of the snail horns 210, the timing and position of the opening of the snail horns 210 are controlled to effectively prevent them from getting stuck on the inner wall of the uterus. At the same time, by pulling the traction rope 230, the two snail horns 210 can be quickly brought close to each other, making it easier to retract them, thereby improving safety during use.

[0093] Embodiment 3

[0094] When the second embodiment is in use, the two snail horns 210 enter the uterus and contact the two uterine horns to limit the position of the uterus. After the work is completed, the two snail horns 210 need to be fitted together and taken out. In the process of the two snail horns 210 fitting together, the uterine wall is easily clamped, resulting in the two snail horns 210 not fitting together, and thus unable to be recovered into the spiral cylinder 160 and the connecting rod 140. Based on this, the solution of the second embodiment is improved, such as Fig.11 As shown:

[0095] The two traction ropes 230 are arranged at one end of the snail horn 210 and pass through the top of the snail horn 210 to be fixed together.

[0096] When use is completed and the snail horns 210 need to be retracted, the two snail horns 210 are pulled together by pulling the lower ends of the two traction ropes 230 so that they can enter the spiral cylinder 160 and the connecting rod 140. When the two snail horns 210 are close to each other, the traction ropes 230 at the upper ends of the two snail horns 210 touch the uterine wall to intercept the uterine wall and prevent it from blocking the snail horns 210.

[0097] By connecting the upper ends of the two traction ropes 230 to each other, the sagging uterine wall can be intercepted to prevent it from hindering the approach of the two snail horns 210. At the same time, when the snail horns 210 stretch the uterine wall, the traction rope 230 between the two snail horns 210 is tightened to support the uterine wall and stabilize its shape.

[0098] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A modified uterine manipulator for laparoscopic total hysterectomy, comprising a fixing assembly (100), wherein the fixing assembly (100) is used to assist hysterectomy; The fixing assembly (100) comprises a uterine lifting rod (170); The uterine lifting rod (170) is cylindrical; It is characterized in that Also included is a restriction component (200), wherein the restriction component (200) is used to stabilize the shape of the uterus; The limiting component (200) comprises a snail horn (210), a groove (211) and a spring (220); There are two snail horns (210), and each of the snail horns (210) is cylindrical; The lower end of the snail horn (210) is rotatably connected to the upper end of the uterine lifting rod (170), and the two snail horns (210) are symmetrically installed; A circular protrusion is fixed on the upper end of the snail horn (210); A groove (211) is formed on the side where the two snail horns (210) are close to each other; Two ends of the spring (220) are respectively fixed in the grooves (211) of the two snail horns (210).

2. The improved uterine manipulator for laparoscopic total hysterectomy as claimed in claim 1, characterized in that: The axis of the snail horn (210) is parallel to the axis of the uterine lifting rod (170).

3. The improved uterine manipulator for laparoscopic hysterectomy according to claim 1, characterized in that: The fixing assembly (100) further comprises a lifting cup (110), a mounting ring (120), a fixing ring (130), a connecting rod (140), a fixing bolt (150), a spiral cylinder (160), a limiting ring (180) and a mounting cylinder (190); The connecting rod (140) is in the shape of a cylinder that penetrates from top to bottom; The spiral cylinder (160) is in the shape of a truncated cone that penetrates from top to bottom, and the lower side of the spiral cylinder (160) is fixed to the upper side of the connecting rod (140); The uterine lifting rod (170) is slidably connected in a cavity that is vertically connected between the connecting rod (140) and the spiral cylinder (160), and the snail horn (210) is located in the cavity that is vertically connected between the connecting rod (140) and the spiral cylinder (160); The spiral cylinder (160) has threads on the outside; The installation cylinder (190) is in the shape of a cylinder that penetrates from top to bottom; The limiting ring (180) is in the shape of a cylinder that penetrates from top to bottom, and the inner wall of the limiting ring (180) is fixed to the outer wall of the installation cylinder (190); The uterine lifting cup (110) is in the shape of a cylinder with an opening at the top, and the mounting ring (120) is in the shape of a cylinder that is connected vertically. The mounting ring (120) is fixed to the lower side of the uterine lifting cup (110), and the cavity that is connected vertically of the mounting ring (120) is connected to the opening at the top of the uterine lifting cup (110); The installation tube (190) is slidably connected in a cavity that passes through the installation ring (120) from top to bottom, and the limiting ring (180) is located at the lower side of the installation ring (120); The fixing ring (130) is in the shape of a cylinder with an opening at the upper end. The lower end of the fixing ring (130) is provided with an opening, which is communicated with the upper opening of the fixing ring (130). The fixing ring (130) is sleeved on the mounting tube (190) through the lower opening of the fixing ring (130). The bottom side of the upper opening of the fixing ring (130) contacts the lower side of the limiting ring (180). The inner wall of the fixing ring (130) is threadedly connected to the outer wall of the mounting ring (120); One side of the connecting rod (140) and one side of the mounting tube (190) are both provided with fixing bolts (150); the fixing bolts (150) on one side of the connecting rod (140) pass through the connecting rod (140) and abut against the uterine lifting rod (170); the fixing bolts (150) on one side of the connecting rod (140) are located at the lower side of the mounting tube (190); The fixing bolt (150) on one side of the installation tube (190) passes through the installation tube (190) and abuts against the connecting rod (140). The fixing bolt (150) on one side of the installation tube (190) is located at the lower side of the fixing ring (130).

4. The improved uterine manipulator for laparoscopic total hysterectomy as claimed in claim 3, characterized in that: The axis of the connecting rod (140) and the axis of the uterine lifting rod (170) are on the same straight line; The center line of the spiral cylinder (160) and the axis of the uterine lifting rod (170) are on the same straight line; The axis of the installation tube (190) and the axis of the uterine lifting rod (170) are on the same straight line; The axis of the limiting ring (180) and the axis of the mounting cylinder (190) are on the same straight line; The axis of the mounting ring (120) and the axis of the uterine cup (110) are on the same straight line.

5. The improved uterine manipulator for laparoscopic total hysterectomy as claimed in claim 3, characterized in that: The axis of the fixing ring (130) and the straight line of its opening are on the same straight line, and the axis of the fixing ring (130) and the axis of the mounting cylinder (190) are on the same straight line.

6. The improved uterine manipulator for laparoscopic total hysterectomy as claimed in claim 4, characterized in that: The limiting assembly (200) further includes a traction rope (230); There are two traction ropes (230), which correspond to the two snail horns (210) one by one, one end of the traction rope (230) is arranged at the top of the side where the two snail horns (210) are close to each other, and one end of the traction rope (230) away from the snail horns (210) passes through the axis of the uterine lifting rod (170) and extends to the outside of the lower end of the uterine lifting rod (170); The traction rope (230) is made of nylon.

7. An improved uterine manipulator for laparoscopic total hysterectomy as claimed in claim 6, characterized in that: The two traction ropes (230) are arranged at one end of the snail horn (210) and pass through the top of the snail horn (210) to be fixed together.

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