A multifunctional uterine manipulator with quick adjustment

Abstract

The present invention relates to the field of uterine manipulators, and in particular to a multifunctional uterine manipulator with quick adjustment, comprising a support seat and a distance adjustment mechanism. The multifunctional uterine manipulator with quick adjustment described in the present invention adjusts the diameter and length of the uterine manipulator cup by means of a first fine-tuning screw on the fine-tuning shaft, while the second fine-tuning screw on the fine-tuning shaft can also synchronously adjust the size of the guide rod, so that the guide rod and the uterine manipulator cup are synchronously adjusted to adapt to the size of the uterus, thereby improving the firmness of the guide rod and the uterine manipulator cup after fixing uteruses of different sizes. In addition, an inflatable airbag is provided on the guide rod, and one end of the inflatable airbag is propped up by pressurized gas to form a bulge structure, so that the guide rod can be stuck in the uterine cavity through the inflatable airbag. This solves the problem that the size of the guide rod cannot be changed accordingly with the overall length of the uterus, which causes the uterus to easily slip off the guide rod and interfere with the smooth progress of uterine removal.

Description

Technical Field

[0001] The present invention relates to the field of uterine manipulators, and in particular to a multifunctional uterine manipulator with quick adjustment. Background Art

[0002] A uterine manipulator is a medical device used to assist in gynecological surgery. It plays an important role in gynecological surgery and is used for total or subtotal hysterectomy. It is mainly composed of a guide rod and a uterine manipulator cup, etc., which can help doctors fix and remove the removed uterus. Patent CN111513829A discloses a uterine manipulator that can arbitrarily adjust the diameter of the uterine manipulator cup. There is no need to temporarily replace the uterine manipulator cup on the guide rod with different sizes during the preparation work, saving the preparation time for hysterectomy surgery. However, when the uterine manipulator cup is adjusted to a larger size according to the size of the uterus, the size of the guide rod cannot be changed accordingly, which will cause the size of the guide rod to be unable to adapt to the overall length of the uterus, resulting in the guide rod being unable to successfully fix the uterus after being inserted into the uterus. In the subsequent uterine removal work, there is a high probability that the uterus will slip off the guide rod, causing interference with the smooth progress of the uterine removal work. Summary of the Invention

[0003] In order to overcome the disadvantage that the size of the guide rod cannot be changed accordingly with the overall length of the uterus, which causes the uterus to easily slip off the guide rod and interferes with the smooth progress of uterine removal, the present invention provides a multifunctional uterine manipulator with quick adjustment.

[0004] The technical solution of the present invention is a multifunctional uterine manipulator with quick adjustment, comprising a support seat, a distance adjustment mechanism, a fine-tuning shaft, a fine-tuning knob, a first fine-tuning screw rod, a second fine-tuning screw rod, a center column, a fixed disk, an inclined slide rail, a fixed cup petal, a retractable cup petal, a movable disk, a telescopic frame, a sleeve and a guide rod; the support seat is connected to the distance adjustment mechanism; the distance adjustment mechanism is connected to the center column; the fixed disk is fixed to the center column; an equal number of fixed cup petals and retractable cup petals are alternately arranged around the outer edge of the fixed disk; the outer edge of the fixed disk is fixed with an inclined slide rail with the same number and position as the fixed cup petals; the fixed cup petals are slidably connected to the corresponding inclined slide rails ; The fixed cup petal is fixedly connected to the two adjacent contraction cup petals, and the palace lifting cup is composed of all the fixed cup petals, all the contraction cup petals and the fixed disk; the center column and the distance adjustment mechanism are connected to a fine-tuning shaft that rotates together; the fine-tuning knob, the first fine-tuning screw and the second fine-tuning screw are fixed on the fine-tuning shaft; the center column is slidably connected to the movable disk; the first fine-tuning screw is screwed to the movable disk through a threaded structure; the movable disk is slidably connected to a telescopic frame with the same number and position as the fixed cup petals; the telescopic frame is fixed to the corresponding fixed cup petals; a sleeve is fixed on the center column; a guide rod is slidably connected in the sleeve; the second fine-tuning screw is screwed to the guide rod through a threaded structure.

[0005] As a preferred technical solution of the present invention, the distance adjustment mechanism includes a mounting frame, a ball bearing, a moving rod, a limit slide, a distance adjustment screw and a distance adjustment knob; the mounting frame is connected to the support seat; the mounting frame is rotatably connected to the ball bearing; the distance adjustment screw is screwed to the ball bearing through an internal thread structure; the distance adjustment screw is rotatably connected to the moving rod; the limit slide is fixed to the moving rod; the limit slide is slidably connected to the ball bearing; the distance adjustment knob is fixed to the distance adjustment screw; the center column is fixed to the moving rod; the moving rod and the inside of the distance adjustment screw are jointly rotatably connected to the fine-tuning shaft.

[0006] As a preferred technical solution of the present invention, a foldable sheath is fixedly connected between the curved portion of the guide rod and the sleeve.

[0007] As a preferred technical solution of the present invention, the diameter of the sleeve is larger than the diameter of the guide rod; and the foldable sheath is configured as a tapered structure that contracts toward the curved portion of the guide rod.

[0008] As a preferred technical solution of the present invention, the curved portion of the guide rod is set as a hollow structure, and the guide rod is provided with no less than four through-groove structures that penetrate inside and outside; an expansion airbag is inserted in the internal hollow structure of the curved portion of the guide rod; the expansion airbag is provided with a protruding structure corresponding to the number and position of the through-groove structures, the protruding structure of the expansion airbag is plugged into the corresponding through-groove structure, and the bag wall of the protruding structure on the lower side of the expansion airbag away from one end of the sleeve is set as a structure thinner than the rest of the expansion airbag; the expansion airbag is connected to a telescopic pipe; a fixing ring is fixed in the sleeve; a compression airbag is fixed on the fixing ring, and the compression airbag is sleeved on the outer surface of the guide rod; an air supply pipe is fixed between the compression airbag and the telescopic pipe.

[0009] As a preferred technical solution of the present invention, the expansion airbag is configured as a curved structure corresponding to the curved portion structure of the guide rod.

[0010] As a preferred technical solution of the present invention, the outer surface of the protruding structure of the inflatable airbag is provided with an anti-slip stripe structure.

[0011] As a preferred technical solution of the present invention, the outer surface of the protruding structure of the inflation airbag in the initial state is configured to be an arc structure aligned with the outer surface of the guide rod.

[0012] As a preferred technical solution of the present invention, the mounting frame is slidably connected to the support seat; the support seat is rotatably connected to a height adjustment screw rod; the height adjustment screw rod is screwed to the mounting frame through a threaded structure.

[0013] As a preferred technical solution of the present invention, a vertical angle adjustment motor is installed on the mounting frame, and a self-locking mechanism is provided in the vertical angle adjustment motor; the ball bearing consists of a fixed part and a movable part, the fixed part of the ball bearing is fixedly connected to the mounting frame, the movable part of the ball bearing is screwed to the pitch adjustment screw through a threaded structure, the movable part of the ball bearing is slidably connected to the limit slide rod, and the movable part is rotatably connected to the fixed part through a rotating shaft; the output shaft of the vertical angle adjustment motor is fixedly connected to the movable part of the ball bearing.

[0014] The present invention describes a multifunctional uterine lifting device with quick adjustment, in which a uterine lifting cup and a guide rod are connected to the central column, wherein the uterine lifting cup is mainly composed of an equal number of fixed cup petals and contraction cup petals and a fixed plate. The diameter and length of the uterine lifting cup are adjusted by the first fine-tuning screw on the fine-tuning shaft. At the same time, the second fine-tuning screw on the fine-tuning shaft can also synchronously adjust the size of the guide rod, so that the guide rod and the uterine lifting cup are synchronously adjusted to adapt to the size of the uterus, thereby improving the firmness of the guide rod and the uterine lifting cup after fixing uteri of different sizes. In addition, an inflatable airbag is provided on the guide rod. When one end of the inflatable airbag is propped up by pressurized gas, a bulge structure will be formed, so that the guide rod can be stuck in the uterine cavity through the inflatable airbag, further preventing the guide rod from loosening or even falling off from the inside of the uterus.

[0015] The invention describes a multifunctional uterine manipulator with quick adjustment, which solves the problem that the size of the guide rod cannot be changed accordingly with the overall length of the uterus, causing the uterus to easily slip off the guide rod and interfere with the smooth progress of uterine removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural diagram for describing the present invention;

[0017] Figure 2 A structural diagram of the mounting frame for describing the present invention;

[0018] Figure 3 A cross-sectional structural diagram of a central column for describing the present invention;

[0019] Figure 4 A cross-sectional structural diagram illustrating the center column, sleeve, and guide rod of the present invention;

[0020] Figure 5 To describe the fixed cup and retractable cup structures of the present invention;

[0021] Figure 6 A structural diagram of an inflatable airbag is provided to describe the present invention;

[0022] Figure 7 This is a diagram illustrating the structure of the fine-tuning shaft of the present invention.

[0023] Markings in the figure: 1-support base, 11-mounting frame, 12-height adjustment screw, 121-height adjustment knob, 13-ball bearing, 14-vertical angle adjustment motor, 15-moving rod, 151-limit slide, 16-pitch adjustment screw, 161-pitch adjustment knob, 17-fine-tuning shaft, 171-fine-tuning knob, 172-first fine-tuning screw, 173-second fine-tuning screw, 18-fixing ring, 19-compression airbag, 191-air supply pipe, 2-center column, 3-fixed plate, 31-oblique slide rail, 32-fixed cup, 33-contraction cup, 34-moving plate, 35-telescopic frame, 4-sleeve, 41-guide rod, 410-through groove, 42-folding sheath, 5-expansion airbag, 51-telescopic pipe. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0025] Example 1

[0026] A multifunctional uterine manipulator with quick adjustment, such as Figure 1-Figure 5 As shown, it includes a support base 1, a distance adjustment mechanism, a fine-tuning shaft 17, a fine-tuning knob 171, a first fine-tuning screw rod 172, a second fine-tuning screw rod 173, a center column 2, a fixed disk 3, an inclined slide rail 31, a fixed cup petal 32, a retractable cup petal 33, a movable disk 34, a telescopic frame 35, a sleeve 4 and a guide rod 41; the support base 1 is connected to the distance adjustment mechanism; the distance adjustment mechanism is connected to the center column 2; the center column 2 is fixed to the fixed disk 3; an equal number of fixed cup petals 32 and retractable cup petals 33 are alternately provided around the outer edge of the fixed disk 3; the outer edge of the fixed disk 3 is fixed with an inclined slide rail 31 of the same number and position as the fixed cup petals 32; each fixed cup petal 32 is slidably connected to the corresponding inclined slide rail 31; each fixed cup petal 32 is fixed to two adjacent ones The retractable cup petals 33 are composed of all the fixed cup petals 32, all the retractable cup petals 33 and the fixed disk 3 to form a size-adjustable uterine cup; the center column 2 and the distance adjustment mechanism are connected to the fine-tuning shaft 17 for common rotation; the fine-tuning knob 171, the first fine-tuning screw rod 172 and the second fine-tuning screw rod 173 are fixed on the fine-tuning shaft 17; the center column 2 is slidably connected to the movable disk 34; the first fine-tuning screw rod 172 is screwed to the movable disk 34 through a threaded structure; the movable disk 34 is slidably connected to the telescopic frame 35 with the same number and position as the fixed cup petals 32; each telescopic frame 35 is respectively fixed to the corresponding fixed cup petal 32; the center column 2 is fixed with a sleeve 4; the sleeve 4 is slidably connected to the guide rod 41; the second fine-tuning screw rod 173 is screwed to the guide rod 41 through a threaded structure.

[0027] like Figure 1 and Figure 2As shown, the distance adjustment mechanism includes a mounting frame 11, a ball bearing 13, a moving rod 15, a limiting slide 151, a distance adjustment screw 16 and a distance adjustment knob 161; the support seat 1 is connected to the mounting frame 11; the mounting frame 11 is rotatably connected to the ball bearing 13; the distance adjustment screw 16 is screwed onto the ball bearing 13 through an internal thread structure; the moving rod 15 is rotatably connected to the distance adjustment screw 16; two limiting slides 151 are fixed to the moving rod 15; the two limiting slides 151 are slidably connected to the ball bearing 13 together; the distance adjustment knob 161 is fixed to the distance adjustment screw 16; the center column 2 is fixed to the moving rod 15; the moving rod 15 and the inside of the distance adjustment screw 16 are rotatably connected to the fine-tuning shaft 17.

[0028] like Figure 3 As shown, a folding sheath 42 is fixed between the curved portion of the guide rod 41 and the sleeve 4, and the folding sheath 42 covers the connection area between the guide rod 41 and the sleeve 4; the diameter of the sleeve 4 is larger than the diameter of the guide rod 41, and after the guide rod 41 is successfully inserted into the interior of the uterus, the sleeve 4 with a larger diameter can be firmly inserted at the entrance of the uterus; the folding sheath 42 is configured as a conical structure that contracts toward the curved portion of the guide rod 41, thereby reducing the movement resistance encountered by the folding sheath 42 during the insertion of the curved portion of the guide rod 41 into the interior of the uterus.

[0029] In the usage steps of a quick-adjustable multifunctional uterine manipulator of the present invention, the user first places the support seat 1 on the operating bed, and allows the uterine lifting cup and the guide rod 41 to be between the patient's legs. Then the user manually adjusts the distance-adjusting screw 16 to drive the ball bearing 13 to rotate vertically in the up and down directions, and adjusts the up and down inclination angles of the uterine lifting cup and the guide rod 41 connected to the distance-adjusting screw 16 until the up and down inclination angles of the uterine lifting cup and the guide rod 41 are aligned with the patient's vaginal inclination angle. Then the user rotates the distance-adjusting knob 161 forward to drive the distance-adjusting screw 16 to rotate. During the rotation of the distance-adjusting screw 16 along the internal thread of the ball bearing 13, the distance-adjusting screw 16 pushes the moving rod 15 to drive the limiting slide 151 to slide along the ball bearing 13, allowing the moving rod 15 to drive the uterine lifting cup and the guide rod 41 to be smoothly inserted into the patient's vagina along its current inclination direction until the guide rod 41 is inserted into the patient's uterus, and at the same time allowing the uterine lifting cup to cover the uterus.

[0030] During this process, the user slowly rotates the fine-tuning knob 171 forward to drive the fine-tuning shaft 17 and the first fine-tuning screw 172 and the second fine-tuning screw 173 connected thereto to rotate synchronously. The rotating first fine-tuning screw 172 pushes the movable disk 34 to drive the telescopic frame 35 toward the fixed disk 3. At the same time, the telescopic frame 35 pushes the fixed cup petals 32 outward along the inclined slide rail 31 on the fixed disk 3. At the same time, the fixed cup petals 32 pull the telescopic frame 35 outward along the movable disk 34, so that all the fixed cup petals 32 are in an outwardly expanded state together, and all the retracted cup petals 33 are pushed outward by all the fixed cup petals 32. The guide rod 41 is stretched to increase the overall diameter and length of the uterine lifting cup until the uterine lifting cup can completely cover the outside of the uterus to adapt to uteri of different sizes. At the same time, the rotating second fine-tuning screw 173 pushes the guide rod 41 to move outward along the sleeve 4. At the same time, the guide rod 41 drives the folding sheath 42 to stretch in the moving direction, so that the length of the guide rod 41 that can be inserted into the uterus increases, so that the guide rod 41 can adapt to the corresponding length of uteri of different sizes, so that the guide rod 41 and the uterine lifting cup can firmly fix the uterus together, making it convenient for users to perform subsequent hysterectomy work.

[0031] After the user finishes the hysterectomy, the user slowly reverses the fine-tuning knob 171 to drive the fine-tuning shaft 17 and the first fine-tuning screw 172 and the second fine-tuning screw 173 connected thereto to rotate synchronously. The first fine-tuning screw 172 pulls the movable plate 34 to drive the telescopic frame 35 to move in the opposite direction, so that the telescopic frame 35 drives the overall diameter and length of the uterine lifting cup to shrink, allowing the shrunken uterine lifting cup to clamp the covered uterus. At this time, the second fine-tuning screw 173 will also pull the guide rod 41 to move inward along the sleeve 4, causing the guide rod 41 inserted into the uterus to shrink as well. The shrinkage change caused by the uterine lifting cup and the guide rod 41 is small, so there is no situation where the guide rod 41 cannot adapt to the length of the uterus, ensuring that the guide rod 41 and the uterine lifting cup can continue to firmly fix the uterus together, and at this time the uterus will be more firmly grasped in the uterine lifting cup. Then the user reversely rotates the distance adjustment knob 161 to drive the distance adjustment screw 16 to rotate, and the distance adjustment screw 16 pulls the moving rod 15 to move the uterine lifting cup and the guide rod 41 in the opposite direction, so that in the subsequent step of removing the uterine lifting cup and the guide rod 41 from the vagina to remove the uterus, the uterus is not easy to fall off from the uterine lifting cup and the guide rod 41.

[0032] Example 2

[0033] On the basis of Example 1, Figure 1-Figure 7As shown, the curved portion of the guide rod 41 of this embodiment is set as a hollow structure, and four through-grooves 410 structures are opened on the guide rod 41, which penetrate inside and outside; an inflatable airbag 5 is inserted into the hollow structure of the curved portion of the guide rod 41, and the inflatable airbag 5 is set as a curved structure corresponding to the structure of the curved portion of the guide rod 41; the inflatable airbag 5 is provided with a protrusion structure corresponding to the number and position of the through-grooves 410 structures, and the protrusion structure of the inflatable airbag 5 is plugged into the corresponding through-grooves 410 structure. A telescopic pipe 51 is connected to the inflatable airbag 5, and the inflatable airbag 5 is set as a structure with a thick wall of the upper protrusion structure and a thin wall of the lower protrusion structure; a fixing ring 1 is fixed inside the sleeve 4. 8; A compression airbag 19 is fixedly connected to the fixing ring 18, and the compression airbag 19 is sleeved on the outer surface of the guide rod 41; an air supply pipe 191 is fixedly connected between the compression airbag 19 and the telescopic pipe 51; pressurized gas is initially stored between the compression airbag 19 and the expansion airbag 5; the outer surfaces of all the protruding structures of the expansion airbag 5 are provided with an anti-slip stripe structure; the outer surfaces of all the protruding structures of the expansion airbag 5 are initially set to be an arc structure aligned with the outer surface of the guide rod 41, so that the protruding structure of the expansion airbag 5 will not initially protrude from the outer surface of the guide rod 41, thereby reducing the friction resistance encountered by the protruding structure of the expansion airbag 5 when it moves in the vagina with the guide rod 41.

[0034] When the user inserts the guide rod 41 into the uterus, when the user slowly turns the fine-tuning knob 171 forward to drive the guide rod 41 to move outward along the sleeve 4, the guide rod 41 pushes the compressed air bag 19 to be compressed in the direction of the fixed ring 18, so that the pressurized gas in the compressed air bag 19 passes through the air supply pipe 191 and the telescopic pipe 51 in sequence and enters the expansion air bag 5, so that all the protruding structures of the expansion air bag 5 are propped outward by the pressurized gas, so that the guide rod 41 can be firmly inserted by relying on the protruding structures propped outward on the expansion air bag 5. Inside the uterus, and because the wall of the protruding structure on the lower side of the inflation airbag 5 away from the end of the sleeve 4 is set to be thinner than the rest of the area of ​​the inflation airbag 5, after all the protruding structures of the inflation airbag 5 are propped up by the pressurized gas, the end of the protruding structure on the lower side of the inflation airbag 5 away from the sleeve 4 will appear as a bulge structure with a larger volume than the surrounding protruding structures, allowing the guide rod 41 to be stuck in the uterine cavity in the form of a barb through the bulge structure of the inflation airbag 5, further preventing the guide rod 41 from loosening or even falling off from the inside of the uterus.

[0035] Example 3

[0036] On the basis of Example 1, Figure 1-Figure 5As shown, the mounting frame 11 of this embodiment is slidably connected to the support base 1; the support base 1 is rotatably connected to a height-adjusting screw rod 12; the height-adjusting screw rod 12 is screwed to the mounting frame 11 through a threaded structure; a height-adjusting knob 121 is fixedly connected to the height-adjusting screw rod 12; the user only needs to rotate the height-adjusting knob 121 to drive the height-adjusting screw rod 12 to rotate, and the rotating height-adjusting screw rod 12 can drive the mounting frame 11 to adjust the angle in the up and down directions along the support base 1, so that the uterine lifting cup and the guide rod 41 connected to the mounting frame 11 are aligned with the height of the vagina, thereby completing the height adjustment process.

[0037] A vertical angle adjustment motor 14 is installed on the mounting frame 11, and a self-locking mechanism is provided in the vertical angle adjustment motor 14; the ball bearing 13 is composed of a fixed part and a movable part, the fixed part of the ball bearing 13 is fixedly connected to the mounting frame 11, and the movable part of the ball bearing 13 is screwed to the pitch adjustment screw 16 through a threaded structure, the movable part of the ball bearing 13 is slidably connected to the limit slide rod 151, and the movable part is rotatably connected to the fixed part through the rotating shaft, so that the movable part of the ball bearing 13 can only be adjusted vertically in the up and down directions; the output shaft of the vertical angle adjustment motor 14 is fixedly connected to the movable part of the ball bearing 13 ; The user only needs to operate the vertical angle adjustment motor 14 to control the movable parts of the ball head bearing 13 to perform vertical angle adjustment work in the up and down directions, thereby driving the uterine lifting cup and the guide rod 41 connected to the ball head bearing 13 to rotate until the inclination angle of the vagina is relatively aligned, completing the vertical angle adjustment process. Then the user turns on the self-locking mechanism of the vertical angle adjustment motor 14 after completing the angle adjustment work, and the movable parts of the ball head bearing 13 can be locked and can no longer move in the up and down directions, so that the uterine lifting cup and the guide rod 41 connected to the ball head bearing 13 are locked in the current vertical angle placement state.

[0038] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A multifunctional uterine manipulator with quick adjustment, comprising a support base (1); a distance adjustment mechanism connected to the support base (1); and a center column (2) connected to the distance adjustment mechanism. Its characteristics are: The invention also includes a fixed disk (3); a fixed disk (3) is fixed on the central column (2); an equal number of fixed cup petals (32) and contraction cup petals (33) are alternately provided around the outer edge of the fixed disk (3); an inclined slide rail (31) having the same number and position as the fixed cup petals (32) is fixed on the outer edge of the fixed disk (3); the fixed cup petals (32) are slidably connected to the corresponding inclined slide rail (31); the fixed cup petals (32) are fixed to two adjacent contraction cup petals (33), and the palace lifting cup is formed by all the fixed cup petals (32), all the contraction cup petals (33) and the fixed disk (3); a fine adjustment shaft (17) is connected to the central column (2) and the distance adjustment mechanism for joint rotation. ); A fine-tuning knob (171), a first fine-tuning screw rod (172) and a second fine-tuning screw rod (173) are fixedly connected to the fine-tuning shaft (17); a movable disk (34) is slidably connected to the central column (2); the first fine-tuning screw rod (172) is screwed to the movable disk (34) through a threaded structure; a telescopic frame (35) having the same number and position as the fixed cup petals (32) is slidably connected to the movable disk (34); the telescopic frame (35) is fixedly connected to the corresponding fixed cup petals (32); a sleeve (4) is fixedly connected to the central column (2); a guide rod (41) is slidably connected in the sleeve (4); the second fine-tuning screw rod (173) is screwed to the guide rod (41) through a threaded structure; The curved portion of the guide rod (41) is configured as a hollow structure, and the guide rod (41) is provided with no less than four through-grooves (410) that penetrate inside and outside; an expansion airbag (5) is inserted into the internal hollow structure of the curved portion of the guide rod (41); a protruding structure corresponding in number and position to the through-grooves (410) is provided on the expansion airbag (5), the protruding structure of the expansion airbag (5) is plugged into the corresponding through-grooves (410), and the wall of the protruding structure on the lower side of the expansion airbag (5) away from one end of the sleeve (4) is configured as a structure thinner than the rest of the expansion airbag (5); a telescopic pipe (51) is connected to the expansion airbag (5); a fixing ring (18) is fixedly connected to the sleeve (4); a compression airbag (19) is fixedly connected to the fixing ring (18), and the compression airbag (19) is sleeved on the outer surface of the guide rod (41); an air delivery pipe (191) is fixedly connected between the compression airbag (19) and the telescopic pipe (51).

2. The multifunctional uterine manipulator with quick adjustment according to claim 1, characterized in that: The pitch adjustment mechanism includes a mounting frame (11); the mounting frame (11) is connected to the support seat (1); the mounting frame (11) is rotatably connected to a ball bearing (13); the ball bearing (13) is screwed to a pitch adjustment screw (16) through an internal thread structure; the pitch adjustment screw (16) is rotatably connected to a moving rod (15); a limit slide (151) is fixed to the moving rod (15); the limit slide (151) is slidably connected to the ball bearing (13); a pitch adjustment knob (161) is fixed to the pitch adjustment screw (16); the center column (2) is fixed to the moving rod (15); the moving rod (15) and the inside of the pitch adjustment screw (16) are rotatably connected to a fine-tuning shaft (17).

3. The multifunctional uterine manipulator with quick adjustment according to claim 1, characterized in that: A folding sheath (42) is fixedly connected between the curved portion of the guide rod (41) and the sleeve (4).

4. The multifunctional uterine manipulator with quick adjustment according to claim 3, characterized in that: The diameter of the sleeve (4) is greater than the diameter of the guide rod (41); and the folding sheath (42) is configured as a tapered structure that contracts toward the curved portion of the guide rod (41).

5. The multifunctional uterine manipulator with quick adjustment according to claim 1, characterized in that: The expansion airbag (5) is configured to have a curved structure corresponding to the curved portion structure of the guide rod (41).

6. The multifunctional uterine manipulator with quick adjustment according to claim 1, characterized in that: The outer surface of the protruding structure of the expansion airbag (5) is provided with an anti-slip stripe structure.

7. The multifunctional uterine manipulator with quick adjustment according to claim 6, characterized in that: In the initial state, the outer surface of the protruding structure of the expansion airbag (5) is set to be an arc structure aligned with the outer surface of the guide rod (41).

8. The multifunctional uterine manipulator with quick adjustment according to claim 2, characterized in that: The mounting frame (11) is slidably connected to the support base (1); a height adjustment screw rod (12) is rotatably connected to the support base (1); and the height adjustment screw rod (12) is screwed to the mounting frame (11) via a threaded structure.

9. The multifunctional uterine manipulator with quick adjustment according to claim 8, characterized in that: A vertical angle adjustment motor (14) is mounted on the mounting frame (11), and a self-locking mechanism is provided in the vertical angle adjustment motor (14); the ball bearing (13) consists of a fixed part and a movable part, the fixed part of the ball bearing (13) is fixedly connected to the mounting frame (11), the movable part of the ball bearing (13) is screwed to the pitch adjustment screw rod (16) through a threaded structure, the movable part of the ball bearing (13) is slidably connected to the limit slide rod (151), and the movable part is rotatably connected to the fixed part through a rotating shaft; the output shaft of the vertical angle adjustment motor (14) is fixedly connected to the movable part of the ball bearing (13).

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