Gynecological operation uterus manipulator

Abstract

The utility model provides a gynecological operation uterus manipulator. The gynecological operation uterus manipulator comprises a sheath rod, a cervical support, a hollow lifting rod and an opening and closing mechanism. A guide hole suitable for penetrating the guide rod is axially formed in the center of the sheath rod in a penetrating manner, one end of the guide hole is in threaded fit with the cervical support, the cervical support is provided with a central hole axially penetrating, and one end, far away from the sheath rod, of the cervical support is provided with an external thread section; one end of the hollow lifting rod is screwed and matched with the external thread section, and the other end is connected with the opening-closing mechanism; wherein the opening and closing mechanism has a closing state that the opening and closing mechanism abuts against the periphery of the hollow lifting rod and an opening state that the opening and closing mechanism is opened in the radial direction of the hollow lifting rod to form an umbrella-shaped supporting face, and the umbrella-shaped supporting face is used for abutting against and supporting the back wall of the uterus. According to the gynecological operation uterus lifting device, the hidden danger that the uterus lifting head punctures the back wall of the uterus can be avoided, and the operation safety and the accuracy of the uterus placing position are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gynecological operation instrument technical field, and specifically relates to a gynecological operation uterine manipulator. BACKGROUND

[0002] The uterine manipulator is used for total or subtotal hysterectomy, and its basic structure includes a sheath rod, a guide rod, a cervical support and a uterine head (cup). When the uterine manipulator is used, the cervical support with a threaded taper at the front part is used to open and position the cervical orifice, then the guide rod is inserted into the sheath rod to detect the depth of the uterus, and after the measurement is completed, the uterine head with a proper length is connected to the front end of the cervical support, so that the uterine head is supported on the posterior wall of the uterus to move the uterus.

[0003] Since the front end of the uterine head is relatively small, although the front end of the uterine head is usually rounded to reduce the risk of piercing the uterine wall, the risk of piercing cannot be avoided, and since the contact surface between the uterine head and the posterior wall of the uterus is very small, the uterine head often slides on the posterior wall of the uterus during the movement of the uterus, which cannot be smoothly moved to the position, which not only affects the accuracy of the position of the uterus, but also further increases the risk of piercing the posterior wall of the uterus. In view of the current practical problems, it is necessary to improve the structure of the uterine manipulator, especially the uterine head, to reduce the risk of piercing and the difficulty of moving the uterus. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a kind of gynecological operation uterine manipulator, to avoid the risk of uterine head piercing the posterior wall of uterus, improve surgical safety and the accuracy of the position of the uterus.

[0005] To achieve the above object, the utility model adopts the technical scheme that provides a kind of gynecological operation uterine manipulator, including sheath rod, cervical support, hollow lifting rod and opening and closing mechanism;Sheath rod center is provided with the guide hole suitable for the guide rod along its axial direction, and the guide hole is screw-connected with cervical support at one end, cervical support has the center hole along its axial direction, and cervical support is provided with outer thread section at one end away from sheath rod;One end of hollow lifting rod is screw-connected with outer thread section, and the other end is connected with opening and closing mechanism;Wherein, opening and closing mechanism has the closed state of abutting to the outer periphery of hollow lifting rod, and the open state of forming umbrella-shaped support surface by striding open along the radial direction of hollow lifting rod, and umbrella-shaped support surface is used to abut and support the posterior wall of uterus.

[0006] In a possible implementation, the opening and closing mechanism comprises a plurality of support rods, a control assembly and a silica umbrella; each of the support rods is arranged at an end of the hollow lifting rod away from the sheath rod in a circumferential direction of the hollow lifting rod and is rotationally connected to the hollow lifting rod; one end of the control assembly is connected to each of the support rods, and the other end sequentially passes through the hollow lifting rod, the center hole and the guide hole and is connected to an end of the guide hole away from the cervical support; the control assembly is used to drive each of the support rods to swing to form a closing state or an opening state; and the silica umbrella is detachably connected to each of the support rods, and the silica umbrella forms an umbrella-shaped support surface when each of the support rods swings to open.

[0007] In some embodiments, the control assembly comprises a driving block, an adjusting head, a pull wire and an elastic return member; the driving block is connected to each of the support rods; the adjusting head is threadedly connected to an end of the guide hole away from the cervical support; one end of the pull wire is connected to the driving block, and the other end sequentially passes through the hollow lifting rod, the center hole and the guide hole and is connected to the adjusting head; and the elastic return member is arranged in the hollow lifting rod and is connected to each of the support rods; when the adjusting head is rotated in a forward direction to drive the driving block to move through the pull wire, each of the support rods is synchronously swung to the opening state under the driving of the driving block; and when the adjusting head is rotated in a reverse direction to release the traction force of the pull wire, each of the support rods is synchronously swung to the closing state under the rebounding force of the elastic return member.

[0008] For example, the end of the hollow lifting rod is provided with a plurality of embedding grooves in a circumferential direction of the hollow lifting rod, the bottom of each of the embedding grooves forms a circular arc guide surface, and the circular arc guide surface is provided with a connecting groove; the support rod comprises an outer swinging segment, a bending segment and an inner driving segment which are sequentially connected; the outer swinging segment is located outside the hollow lifting rod, the bending segment is slidably abutted against the circular arc guide surface, the bending segment is provided with a connecting lug which is hingedly connected to the connecting groove, and the inner driving segment extends into the hollow lifting rod and is connected to the driving block and the elastic return member.

[0009] For example, the driving block comprises a cylindrical segment and a conical segment which are sequentially connected; in the closing state, the conical wall of the conical segment is abutted against each of the inner driving segments in an axial direction of the conical segment; and in the opening state, the circumferential wall of the cylindrical segment is abutted against each of the inner driving segments in a radial direction of the cylindrical segment.

[0010] In a possible implementation, the inner wall of the hollow lifting rod is provided with a limiting snap ring, one end of the elastic return member is abutted against the limiting snap ring, and the other end is abutted against each of the inner driving segments.

[0011] In some embodiments, the outer circumferential wall of the hollow lifting rod is provided with a plurality of accommodating grooves in a circumferential direction of the hollow lifting rod, and each of the support rods is correspondingly embedded in each of the accommodating grooves in the closing state.

[0012] Illustratively, the outer swing section is provided with a first perforation near one end of the curved section, and a second perforation at the other end; the opening and closing mechanism further comprises a first elastic ring and a second elastic ring; wherein the first elastic ring is threaded through each first perforation, and the second elastic ring is threaded through each second perforation.

[0013] Illustratively, the center of the driving block is threaded with a gland, which is used to press and fix the center area of the silica gel umbrella to the driving block.

[0014] In some embodiments, the guide hole is connected with an internally threaded sleeve at one end away from the cervical support, and the adjusting head is threaded to the internally threaded sleeve.

[0015] The gynecological surgery uterine elevator has the advantages that compared with the prior art, the gynecological surgery uterine elevator is provided with an opening and closing mechanism capable of opening and closing at the front end of the hollow lifting rod, the opening and closing mechanism can abut against the outer periphery of the hollow lifting rod in the closed state, thereby facilitating the entry and exit of the cervical orifice, the opening and closing mechanism can form an umbrella-shaped support surface in the open state, the contact area between the front end of the hollow lifting rod and the posterior wall of the uterus can be increased by using the umbrella-shaped support surface, the risk of the front end of the hollow lifting rod piercing the posterior wall of the uterus can be avoided, the contact force between the front end of the hollow lifting rod and the posterior wall of the uterus can be increased by abutting and supporting the umbrella-shaped support surface on the posterior wall of the uterus, the front end of the hollow lifting rod can be prevented from sliding and mispositioning on the posterior wall of the uterus during the uterine positioning process, and the accuracy of the uterine positioning position is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A front view structural schematic diagram of the gynecological surgery uterine elevator provided by the embodiment of the utility model;

[0017] Figure 2 A three-dimensional structural schematic diagram of the hollow lifting rod and the opening and closing mechanism in the open state adopted by the embodiment of the utility model;

[0018] Figure 3 An unfolding structural schematic diagram of the silica gel umbrella adopted by the embodiment of the utility model;

[0019] Figure 4 A sectional view structural schematic diagram of the opening and closing mechanism in the open state adopted by the embodiment of the utility model;

[0020] Figure 5 A Figure 1 A local enlarged structural schematic diagram of position A in FIG. 4;

[0021] Figure 6 A Figure 1 A local enlarged structural schematic diagram of position B in FIG. 4;

[0022] Figure 7 A Figure 1 A local enlarged structural schematic diagram of position C in FIG. 4;

[0023] Figure 8 A hollow lifting rod three-dimensional structure schematic view used for the embodiment of the utility model;

[0024] Figure 9 A support rod three-dimensional structure schematic view used for the embodiment of the utility model;

[0025] Figure 10 A driving block three-dimensional structure schematic view used for the embodiment of the utility model.

[0026] In the figure: 10, sheath rod; 100, guide hole; 101, internal thread sleeve; 20, cervical support; 200, center hole; 201, external thread section; 30, hollow lifting rod; 31, embedding groove; 311, circular arc guide surface; 312, connecting groove; 32, limit snap ring; 33, containing groove; 40, opening and closing mechanism; 41, support rod; 411, outer swing section; 4111, first perforation; 4112, second perforation; 412, curved section; 4121, connecting lug; 413, internal drive section; 42, control assembly; 421, driving block; 4211, cylindrical section; 4212, conical section; 4213, gland; 422, adjusting head; 423, pull wire; 424, elastic return member; 43, silica umbrella surface; 431, outer hoop ring; 432, inner hoop ring; 50, first elastic ring; 60, second elastic ring. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the utility model to be solved more clearly, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0028] It should be noted that when an element is referred to as "provided on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or several features. In the description of the present application, the meaning of "multiple", "several" is two or more, unless otherwise specifically limited.

[0029] Please see Figures 1 to 10 The gynecological surgery uterine manipulator provided by the utility model, comprising a sheath rod 10, a cervical support 20, a hollow lifting rod 30 and a zipping mechanism 40; a guide hole 100 suitable for penetrating a guide rod is arranged through the center of the sheath rod 10 along the axial direction, one end of the guide hole 100 is screw-connected with the cervical support 20, the cervical support 20 has a central hole 200 penetrating through the axial direction, and an external thread section 201 is arranged at the end of the cervical support 20 away from the sheath rod 10; one end of the hollow lifting rod 30 is screw-connected with the external thread section 201, and the other end is connected with the zipping mechanism 40; wherein the zipping mechanism 40 has a folded state of abutting against the outer periphery of the hollow lifting rod 30 and an open state of forming an umbrella-shaped support surface by being stretched along the radial direction of the hollow lifting rod 30, and the umbrella-shaped support surface is used for abutting against and supporting the posterior wall of the uterus.

[0030] It should be noted that the sheath rod 10 and the cervical support 20 can be of the same structure as the existing uterine manipulator, and the hollow lifting rod 30 can be improved based on the existing uterine manipulator; specifically, the hollow lifting rod 30 is different from the ball head of the existing uterine manipulator in that the front end is closed by a through inner hole and the zipping mechanism 40 is installed at the front end, and the side wall of the hollow lifting rod 30 can be provided with radial perforations to meet the liquid injection requirement into the uterine cavity; when the zipping mechanism 40 is opened, the umbrella-shaped support surface is abutted against the posterior wall of the uterus, thereby avoiding the risk of the front end of the hollow lifting rod 30 piercing the uterine wall, and increasing the contact area with the posterior wall of the uterus to avoid unstable uterine lifting.

[0031] Compared with the prior art, the gynecological surgery uterine manipulator provided by the embodiment has the zipping mechanism 40 capable of being opened and folded installed at the front end of the hollow lifting rod 30, the zipping mechanism 40 can abut against the outer periphery of the hollow lifting rod 30 in the folded state, thereby facilitating the entry and exit of the cervical port, the zipping mechanism 40 can form an umbrella-shaped support surface in the open state, the contact area between the front end of the hollow lifting rod 30 and the posterior wall of the uterus can be increased by using the umbrella-shaped support surface, thereby not only avoiding the risk of the front end of the hollow lifting rod 30 piercing the posterior wall of the uterus, but also improving the contact force between the front end of the hollow lifting rod 30 and the posterior wall of the uterus by abutting and supporting the posterior wall of the uterus with the umbrella-shaped support surface, thereby avoiding the front end of the hollow lifting rod 30 sliding and mispositioning on the posterior wall of the uterus during the uterine positioning process, and improving the accuracy of the uterine positioning position.

[0032] In some embodiments, see Figures 2 to 5The opening and closing mechanism 40 comprises a plurality of support rods 41, a control assembly 42 and a silica umbrella surface 43. Each support rod 41 is spaced apart along the circumference of the hollow lifting rod 30 and is connected to the end of the hollow lifting rod 30 away from the sheath rod 10. The control assembly 42 is connected to each support rod 41 at one end and is connected to the end of the guide hole 100 away from the cervical support 20 at the other end. The control assembly 42 is used to drive each support rod 41 to swing to form a closing state or an opening state. The silica umbrella surface 43 is detachably connected to each support rod 41 and forms an umbrella-shaped support surface when each support rod 41 swings to open.

[0033] Each support rod 41 forms a skeleton structure that can swing synchronously under the driving of the control assembly 42. The silica umbrella surface 43 is connected to each support rod 41 to form an umbrella-shaped support surface when each support rod 41 opens. When each support rod 41 closes to fit the outer wall of the hollow lifting rod 30, the silica umbrella surface 43 is wrapped around the hollow lifting rod 30 and can wrap the support rod 41 due to the resilience of the silica umbrella surface 43, thereby facilitating access to the cervical os and avoiding scratches.

[0034] It should be noted that the silica umbrella surface 43 can be understood as a medical silica film with a certain elasticity, which is disposable. The edge of the silica umbrella surface 43 is provided with an outer hoop ring 431 and an inner hoop ring 432. During installation, the inner hoop ring 432 is fixed to the end of the hollow lifting rod 30 or the control assembly 42, and the outer hoop ring 431 is wrapped around the end of each support rod 41, which facilitates replacement.

[0035] As a specific embodiment of the control assembly 42, the control assembly 42 comprises a driving block 421, an adjusting head 422, a pull wire 423, and an elastic return member 424. Figures 2 to 10 It should be noted that the control assembly 42 comprises a driving block 421, an adjusting head 422, a pull wire 423, and an elastic return member 424. The driving block 421 is connected to each support rod 41. The adjusting head 422 is threadedly connected to the end of the guide hole 100 away from the cervical support 20. One end of the pull wire 423 is connected to the driving block 421, and the other end is connected to the adjusting head 422 through the hollow lifting rod 30, the center hole 200 and the guide hole 100. The elastic return member 424 is arranged in the hollow lifting rod 30 and is connected to each support rod 41. When the adjusting head 422 is rotated in the forward direction to move the driving block 421 through the pull wire 423, each support rod 41 swings synchronously to the opening state under the driving of the driving block 421. When the adjusting head 422 is rotated in the reverse direction to release the traction force of the pull wire 423, each support rod 41 swings synchronously to the closing state under the resilience of the elastic return member 424.

[0036] The pull wire 423 can be used to drive the driving block 421 to move by rotating or pulling the adjusting head 422, and the driving block 421 is used to drive the support rods 41 to swing synchronously and be unfolded. When it is needed to be folded, the pull wire 423 is released, and the elastic reset member 424 such as a spring is used to push the driving block 421 to move reversely, so that the support rods 41 are reversely swung and abut against the peripheral wall of the hollow lifting rod 30 to form a folded state. On this basis, the elastic recovery force of the silica gel umbrella surface 43 acting on the support rods 41 also helps the support rods 41 to be smoothly folded.

[0037] In some possible implementation manners, refer to Figure 8 and Figure 9 The end of the hollow lifting rod 30 is spaced apart along the circumference and has a plurality of embedding grooves 31. The groove bottom of each embedding groove 31 forms a circular arc guide surface 311, and the circular arc guide surface 311 is provided with a connecting groove 312. The support rod 41 comprises an outer swing segment 411, a bending arc segment 412 and an inner driving segment 413 which are sequentially connected. The outer swing segment 411 is located outside the hollow lifting rod 30. The bending arc segment 412 is slidably abutted against the circular arc guide surface 311, and the bending arc segment 412 is provided with a connecting lug 4121 which is hingedly connected in the connecting groove 312. The inner driving segment 413 extends into the inside of the hollow lifting rod 30 and is connected with the driving block 421 and the elastic reset member 424.

[0038] The embedding groove 31 can avoid the risk of the support rod 41 protruding forward from the front end of the hollow lifting rod 30 to press against the rear wall of the uterus and be pierced. On this basis, the connecting lug 4121 on the bending arc segment 412 extends into the connecting groove 312 and is hingedly connected with the groove wall of the connecting groove 312 through a pin shaft. The sliding cooperation of the bending arc segment 412 and the circular arc guide surface 311 improves the stability of the overall swing of the support rod 41. The inner driving segment 413 and the outer swing segment 411 form an included angle structure based on the connection of the bending arc segment 412. The specific included angle can be between sixty degrees and ninety degrees. When each outer swing segment 411 abuts against the peripheral wall of the hollow lifting rod 30 to form a folded state, an included angle is formed between each inner driving segment 413 and the inner wall of the hollow lifting rod 30. The driving block 421 directly abutting against each inner driving segment 413 can be used to turn over the inner driving segment 413 by abutting against the inner driving segment 413 when the pull wire 423 pulls the driving block 421, so as to drive the outer swing segment 411 to be unfolded. When the pulling external force of the pull wire 423 is removed, the elastic reset member 424 can reversely push each inner driving segment 413, so as to drive each outer swing segment 411 to be folded. The structure is simple and stable.

[0039] In some embodiments, the driving block 421 adopts, for example, Figure 10The driving block 421 comprises a cylindrical segment 4211 and a conical segment 4212. In the folded state, the conical wall of the conical segment 4212 is axially pressed against each inner driving segment 413. In the unfolded state, the circumferential wall of the cylindrical segment 4211 is radially pressed against each inner driving segment 413.

[0040] When the support rod 41 is unfolded from the folded state, the conical wall of the conical segment 4212 can press each inner driving segment 413, so as to overcome the thrust force of the elastic return member 424 and unfold the outer swinging segment 411. When the inner driving segment 413 swings to abut against the inner wall of the hollow lifting rod 30, the limit position is reached, at which the circumferential wall of the cylindrical segment 4211 is radially abutted against each inner driving segment 413, so as to fix the unfolded state and avoid the support rod 41 from being folded under force during swinging, which is conducive to improving the contact reliability between the silica gel umbrella surface 43 and the posterior wall of the uterus.

[0041] It should be noted that, referring to Figure 4 and Figure 5 , the inner wall of the hollow lifting rod 30 is provided with a limiting snap ring 32. One end of the elastic return member 424 is abutted against the limiting snap ring 32, and the other end is abutted against each inner driving segment 413. The limiting snap ring 32 can be integrally formed on the inner wall of the hollow lifting rod 30, or can be a limiting snap ring 32 inserted into the slotted inner wall of the hollow lifting rod 30. The limiting snap ring 32 provides a support force to the elastic return member 424, so that the elastic return member 424 can exert an elastic thrust force on each inner driving segment 413, and the structure is simple and compact.

[0042] In some embodiments, referring to Figure 4 , Figure 5 and Figure 8 , the outer circumferential wall of the hollow lifting rod 30 is provided with a plurality of accommodating grooves 33 distributed along the circumferential direction. In the folded state, each support rod 41 is respectively embedded in each accommodating groove 33. By providing the accommodating grooves 33, the support rod 41 can be prevented from protruding from the circumferential wall of the hollow lifting rod 30 in the folded state, so that the structure compactness in the storage state can be improved, and the cervical canal can be conveniently passed through.

[0043] Specifically, referring to Figure 4 , Figure 5 and Figure 9The outer swing section 411 is provided with a first through hole 4111 at one end close to the curved section 412 and a second through hole 4112 at the other end in the embodiment; the opening and closing mechanism 40 further comprises a first elastic ring 50 and a second elastic ring 60; wherein the first elastic ring 50 is arranged through each first through hole 4111, and the second elastic ring 60 is arranged through each second through hole 4112. The first elastic ring 50 arranged through each first through hole 4111 and the second elastic ring 60 arranged through each second through hole 4112 can establish a ring connection between each support rod 41, thereby improving the overall stability of the structure, and the elastic restoring force of the first elastic ring 50 and the second elastic ring 60 can also improve the smoothness of the swing of each support rod 41 from the open state to the closing state.

[0044] It should be noted that, in order to avoid the silicone umbrella surface 43 from falling off, please refer to Figure 3 and Figure 4 The center of the driving block 421 is screwed with a gland 4213, which is used to press and fix the center area of the silicone umbrella surface 43 to the driving block 421. When installing and replacing the silicone umbrella surface 43, the inner hoop ring 432 can be sleeved on the center of the gland 4213, then the gland 4213 is screwed on the driving block 421 to press the inner hoop ring 432, and then the outer hoop ring 431 is sleeved on the end of each support rod 41. When the support rod 41 is opened, the outer hoop ring 431 forms a hoop at the position close to the second elastic ring 60 based on its own elastic force, thereby ensuring the connection reliability of the silicone umbrella surface 43 in the open state.

[0045] It should be understood that, as shown in Figure 7 The above-mentioned guide hole 100 is connected with an inner threaded sleeve 101 at one end away from the cervical support 20, and the adjusting head 422 is screwed on the inner threaded sleeve 101. By connecting the inner threaded sleeve 101 as a transition structure to meet the screwing requirement of the adjusting head 422, only forward rotation or reverse rotation of the adjusting head 422 is needed to control the depth of the adjusting head 422 screwed into the inner threaded sleeve 101, thereby adjusting the position of the pull wire 423 to pull the driving block 421 to move, and further realizing the adjustment of the opening and closing angle of each support rod 41, which is simple to operate and flexible and convenient to use.

[0046] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gynecological surgical uterine manipulator, characterized in that, The device includes a sheath rod, a cervical support, a hollow lifting rod, and an opening and closing mechanism. The sheath rod has a guide hole extending axially through its center, suitable for inserting a guide rod. One end of the guide hole is screwed into the cervical support. The cervical support has a central hole extending axially, and the end of the cervical support away from the sheath rod has an external threaded section. One end of the hollow lifting rod is screwed into the external threaded section, and the other end is connected to the opening and closing mechanism. The opening and closing mechanism has a closed state that abuts against the outer periphery of the hollow lifting rod, and an open state that expands radially along the hollow lifting rod to form an umbrella-shaped support surface, the umbrella-shaped support surface being used to abut against and support the posterior wall of the uterus.

2. The gynecological surgical uterine manipulator as described in claim 1, characterized in that, The opening and closing mechanism includes: Multiple support rods are distributed at intervals along the circumference of the hollow lifting rod at the end of the hollow lifting rod away from the sheath rod, and each of the support rods is rotatably connected to the hollow lifting rod. The control component has one end connected to each of the support rods respectively, and the other end passes through the hollow lifting rod, the central hole and the guide hole in sequence and is connected to the end of the guide hole away from the cervical support. The control component is used to drive each of the support rods to swing to form the closed state or the open state. A silicone umbrella surface is detachably connected to each of the support rods, and the silicone umbrella surface forms the umbrella-shaped support surface when each of the support rods swings open.

3. The gynecological surgical uterine manipulator as described in claim 2, characterized in that, The control components include: The drive block is connected together with each of the support rods; An adjusting head is threadedly connected to the end of the guide hole away from the cervical support; A pull wire is connected at one end to the drive block, and the other end passes sequentially through the hollow lifting rod, the central hole and the guide hole and is connected to the adjustment head. An elastic reset element is disposed inside the hollow lifting rod and connected to each of the support rods; When the adjusting head rotates forward to pull the drive block through the pull line, each of the support rods swings synchronously to the open state under the drive of the drive block; when the adjusting head rotates in the reverse direction to release the traction force of the pull line, each of the support rods swings synchronously to the closed state under the rebound force of the elastic reset member.

4. The gynecological surgical uterine manipulator as described in claim 3, characterized in that, The hollow lifting rod has multiple slots spaced circumferentially at its end, and the bottom of each slot forms an arc guide surface, with a connecting groove on the arc guide surface. The support rod includes an outer swing section, a curved section, and an inner drive section connected in sequence. The outer swing section is located on the outside of the hollow lifting rod, the curved section slides against the arc guide surface, and the curved section has a connecting lug hinged in the connecting groove. The inner drive section extends into the hollow lifting rod and connects to the drive block and the elastic reset member.

5. The gynecological surgical uterine manipulator as described in claim 4, characterized in that, The drive block includes a cylindrical segment and a conical segment that are connected; wherein, in the closed state, the conical wall of the conical segment presses against each of the inner drive segments along its axial direction, and in the open state, the peripheral wall of the cylindrical segment presses against each of the inner drive segments along its radial direction.

6. The gynecological surgical uterine manipulator as described in claim 4, characterized in that, The hollow lifting rod has a limiting ring on its inner wall. One end of the elastic reset member abuts against the limiting ring, and the other end abuts against each of the inner drive sections.

7. The gynecological surgical uterine manipulator as described in claim 4, characterized in that, The outer peripheral wall of the hollow lifting rod has multiple receiving grooves distributed at intervals along its circumference, and each of the support rods is embedded into the respective receiving groove when the rod is closed.

8. The gynecological surgical uterine manipulator as described in claim 4, characterized in that, The outer swing section has a first through hole at one end near the curved section and a second through hole at the other end; the opening and closing mechanism also includes a first elastic ring and a second elastic ring; wherein the first elastic ring passes through each of the first through holes and the second elastic ring passes through each of the second through holes.

9. The gynecological surgical uterine manipulator as described in claim 3, characterized in that, A pressure cap is screwed to the center of the drive block, and the pressure cap is used to press and fix the central area of ​​the silicone umbrella surface to the drive block.

10. The gynecological surgical uterine manipulator as described in claim 3, characterized in that, The end of the guide hole away from the cervical support is connected to an internal threaded sleeve, and the adjusting head is screwed onto the internal threaded sleeve.

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