Lithotomy position fixing stabilizer

Abstract

The invention provides a lithotomy position fixing stabilizer, and relates to the field of operative position fixing. Fixing boxes are fixedly arranged on the two sides of the top of the mounting frame, vertical shafts are rotationally arranged in the fixing boxes, and adjusting discs are fixedly arranged at the top ends of the vertical shafts. A first adjusting assembly is fixedly arranged at the top of the adjusting disc, and a second adjusting assembly is fixedly arranged at the top of the first adjusting assembly; a fixing structure is fixedly arranged on the outer side of the second adjusting assembly, and an auxiliary structure is fixedly arranged on the top of the second adjusting assembly. A shielding structure is arranged between the two second adjusting assemblies. Through the second adjusting assembly and the shielding structure, adjusting and fixing can be conducted according to the bending degree of knee joints of the patient and the opening and closing angle needed by the legs; meanwhile, the privacy part of the patient can be shielded, the treatment area can be isolated through the shielding structure, and the problems that the flexible multi-angle adjusting function is difficult to achieve, and the privacy part of the patient is inconvenient to shield are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surgical position fixation, in particular to a lithotomy position fixation stabilizer. BACKGROUND

[0002] In the field of medical surgery, especially in the operation of urology, gynecology and other departments, the lithotomy position is a very common and important surgical position. The lithotomy position requires the patient to lie on the operating table on his back, with his legs placed on a specially designed leg support, the hip joint flexed and the knee joint bent to fully expose the surgical site and provide a good surgical field and operating space for the surgeon.

[0003] The existing lithotomy position fixation device generally uses a leg support to provide support for the patient's legs. However, most of the existing leg supports cannot achieve flexible multi-angle adjustment. In actual application scenarios, the body conditions and surgical needs of different patients vary significantly, the bending degree of the knee joint and the opening angle of the legs required are different. However, the current leg supports cannot accurately adapt and dynamically adjust according to these individual differences, making it difficult to meet the diverse clinical needs. In addition, the existing lithotomy position fixation device lacks privacy protection. During the operation, the patient's private parts are easily exposed when in the lithotomy position, which makes the patient feel embarrassed and may have a negative impact on their psychological state. SUMMARY

[0004] Therefore, the present application provides a lithotomy position fixation stabilizer, which has a first adjustment assembly, a second adjustment assembly and a shielding structure, and can be adjusted and fixed according to the bending degree of the patient's knee joint and the opening angle of the legs required. At the same time, it can shield the patient's private parts and isolate the treatment area using the shielding structure.

[0005] The present application provides a lithotomy position fixation stabilizer, which specifically comprises: a mounting frame; a fixed box is fixedly arranged on both sides of the top of the mounting frame, a vertical shaft is rotatably arranged in the fixed box, and an adjustment disc is fixedly arranged at the top end of the vertical shaft; a first adjustment assembly is fixedly arranged on the top of the adjustment disc, and a second adjustment assembly is fixedly arranged on the top of the first adjustment assembly; a fixed structure is fixedly arranged on the outer side of the second adjustment assembly, and an auxiliary structure is fixedly arranged on the top of the second adjustment assembly; the first adjustment assembly, the second adjustment assembly and the auxiliary structure are symmetrically arranged in two places, and the fixed structure is arranged in four places, and a shielding structure is arranged between the two second adjustment assemblies; The first adjustment assembly comprises: a vertical cylinder and a sliding column; the vertical cylinder is fixedly arranged on the top of the adjustment disc; the sliding column is slidingly arranged in the vertical cylinder; the second adjustment assembly comprises: an adjustment frame, an adjustment shaft, an adjustment seat and a worm gear B; the adjustment frame is fixedly arranged on the top end of the sliding column; the adjustment shaft is rotatably arranged in the inside of both sides of the adjustment frame; the adjustment seat is fixedly arranged on the outer side of the adjustment shaft; and the worm gear B is fixedly arranged on the top end of the adjustment shaft.

[0006] Furthermore, a worm gear A is fixedly installed on the outer side of the vertical shaft, and a worm A is rotatably installed inside the fixed box; a handwheel is fixedly installed at the top of the worm A, and the worm A meshes with the worm gear A.

[0007] Furthermore, an annular groove is provided inside the bottom side of the adjustment plate, and a ball bearing is rotatably arranged inside the top side of the fixed box; the ball bearing is arranged in a ring array and is movably arranged inside the annular groove.

[0008] Furthermore, the first adjustment assembly also includes: a fixed plate, an adjusting screw, a bevel gear A, a horizontal shaft, and a bevel gear B; the fixed plate is fixedly disposed inside the vertical cylinder; the adjusting screw is rotatably disposed inside the fixed plate, and the adjusting screw is threadedly connected to the sliding column; the bevel gear A is fixedly disposed at the bottom end of the adjusting screw; the horizontal shaft is rotatably disposed inside the bottom side of the vertical cylinder, and a handwheel is fixedly disposed at one end of the horizontal shaft; the bevel gear B is fixedly disposed at the other end of the horizontal shaft, and the bevel gear B meshes with the bevel gear A.

[0009] Furthermore, the second adjustment assembly also includes: a fixed box and a worm gear B; the fixed box is fixedly disposed on the outside of the adjustment frame and is located outside the worm wheel B; the worm gear B is rotatably disposed inside the fixed box and meshes with the worm wheel B, and a handwheel is fixedly disposed at the bottom end of the worm gear B.

[0010] Furthermore, the fixing structure includes: a leg support frame, a soft pad, a braided strap A, and a connecting ring; the leg support frame is fixedly disposed on the outside of the adjusting seat; the soft pad is fixedly disposed on the top of the leg support frame, and the top of the soft pad is configured as an arc-shaped structure; the braided strap A is fixedly disposed on one side of the soft pad; and the connecting ring is rotatably disposed on the top of the braided strap A.

[0011] Furthermore, the fixing structure also includes: a woven strap B, a hook and loop fastener side, and a loop fastener side; the woven strap B is fixed to the other side of the cushion, and the woven strap B can be folded through the connecting ring; the hook and loop fastener side is sewn onto the woven strap B; the loop fastener side is sewn onto the woven strap B, and the loop fastener side and the hook and loop fastener side are bonded together when the woven strap B is folded.

[0012] Furthermore, the auxiliary structure includes: an auxiliary frame, a double-ended screw, a sliding seat, an auxiliary plate, a connecting seat, a support plate, and an auxiliary pad; the auxiliary frame is fixedly mounted on the top of the adjusting frame; the double-ended screw is rotatably mounted inside the auxiliary frame, and a handwheel is fixedly mounted on the top of the double-ended screw; the sliding seat is slidably mounted inside the auxiliary frame via a dovetail groove, and the sliding seat is threadedly connected to the outside of the double-ended screw; the auxiliary plate is rotatably mounted on the top of the sliding seat; the connecting seat is rotatably mounted on the end of the auxiliary plate; the support plate is fixedly mounted on the top of the connecting seat; and the auxiliary pad is fixedly mounted on the top of the support plate.

[0013] Furthermore, the shielding structure includes: a fixed post, a threaded hole, a threaded rod, a stop block, a cloth tube, and an elastic band; the fixed post is fixedly installed on one side of the top of the adjusting frame; the threaded hole is opened inside the top side of the fixed post; the threaded rod is installed inside the threaded hole through a threaded connection; the stop block is fixedly installed on the top of the threaded rod, and the bottom of the stop block is in contact with the top of the fixed post; the cloth tube is movably installed on the outside of the fixed post, and two sets of cloth tubes are provided; the elastic band is sewn between the two sets of cloth tubes.

[0014] Furthermore, the shielding structure also includes: a shielding cloth, an elastic clip, and a storage bag; the shielding cloth is placed on the top outer side of the elastic band; the elastic clip is clamped and fixed between the shielding cloth and the outer side of the elastic band; and the storage bag is sewn onto one side of the shielding cloth.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, by providing a worm gear A, a worm wheel A, and a vertical shaft, enables adjustment of the lateral angle of the vertical cylinder; thereby, it enables adjustment of the lateral angle of the fixed structure according to the opening and closing angle of the patient's legs; simultaneously, the second adjustment component enables adjustment of the vertical angle of the fixed structure, which is beneficial for adjusting the vertical angle of the fixed structure according to the degree of bending of the patient's knee joint; thus, it enables precise adaptation and dynamic adjustment according to individual patient differences.

[0016] 2. This invention, by providing a stop block, a threaded rod, and a threaded hole, allows for easy and convenient installation of the cloth tube onto the outside of the fixing post, facilitating the installation of the elastic band; simultaneously, the elastic clip can fix the covering cloth onto the elastic band; by installing the covering cloth, the patient's private parts can be covered, avoiding embarrassment and anxiety caused by privacy exposure; both the elastic band and the covering cloth are disposable medical supplies; and the storage bag can hold the patient's underwear to prevent contamination.

[0017] 3. This invention, by providing a double-headed screw and a sliding seat, as well as an auxiliary plate and a connecting seat, allows for adjustment of the height of the support plate and the auxiliary pad; thus, the vertical position of the auxiliary pad can be flexibly adjusted according to the specific height of the patient's knee joint, so that the top of the auxiliary pad can fit tightly against the patient's knee joint, providing stable and appropriate support; this helps the patient maintain a more comfortable and natural position during surgery.

[0018] 4. This invention, through the design of an arc-shaped soft pad, can better conform to the curve of the patient's leg, distribute leg pressure, and avoid local pressure pain caused by prolonged support; and uses woven straps A and B in conjunction with connecting rings, hook and loop fasteners for leg fixation, making operation simple and convenient; medical staff can easily adjust the tightness of the fixation according to the thickness of the patient's leg, ensuring both the stability of the fixation and preventing leg slippage, while avoiding discomfort caused by excessive tightness affecting leg blood circulation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the lateral angle adjustment structure of the fixed structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of the first adjustment component of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal structure of the fixing box of the present invention.

[0025] Figure 5 This is a schematic diagram of the lower surface structure of the adjustment disc of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of the second adjustment component of the present invention.

[0027] Figure 7 This is a schematic diagram of the auxiliary structure of the present invention.

[0028] Figure 8 This is a schematic diagram of the fixed structure of the present invention.

[0029] Figure 9 This is a schematic diagram of the structure of the shielding cloth and storage bag of the present invention.

[0030] Figure 10 This is a schematic diagram of the structure of the cloth tube and elastic band of the present invention.

[0031] List of reference numerals 1. Mounting bracket; 101. Fixing box; 102. Vertical shaft; 103. Adjusting plate; 104. Worm gear A; 105. Worm A; 106. Annular groove; 107. Ball bearing; 2. First adjusting assembly; 201. Vertical cylinder; 202. Sliding column; 203. Fixed plate; 204. Adjusting screw; 205. Bevel gear A; 206. Horizontal shaft; 207. Bevel gear B; 3. Second adjustment assembly; 301. Adjustment frame; 302. Adjustment shaft; 303. Adjustment seat; 304. Worm gear B; 305. Fixing box; 306. Worm B; 4. Fixing structure; 401. Leg support; 402. Soft pad; 403. Braided strap A; 404. Connecting ring; 405. Braided strap B; 406. Hook and loop fastener; 407. Hook and loop fastener loop. 5. Auxiliary structure; 501. Auxiliary frame; 502. Double-ended screw; 503. Sliding seat; 504. Auxiliary plate; 505. Connecting seat; 506. Support plate; 507. Auxiliary pad; 6. Covering structure; 601. Fixing post; 602. Threaded hole; 603. Threaded rod; 604. Stop block; 605. Cloth tube; 606. Elastic band; 607. Covering cloth; 608. Elastic clip; 609. Storage bag. Detailed Implementation

[0032] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0033] Example 1: Please refer to Figures 1 to 10 As shown: This invention provides a rock-cutting position fixing stabilizer, including a mounting frame 1; a fixing box 101 is fixedly installed on both sides of the top of the mounting frame 1, and a vertical shaft 102 is rotatably installed inside the fixing box 101, and an adjusting plate 103 is fixedly installed at the top of the vertical shaft 102; a first adjusting component 2 is fixedly installed at the top of the adjusting plate 103, and a second adjusting component 3 is fixedly installed at the top of the first adjusting component 2; a fixing structure 4 is fixedly installed on the outside of the second adjusting component 3, and an auxiliary structure 5 is fixedly installed at the top of the second adjusting component 3; the first adjusting component 2, the second adjusting component 3, and the auxiliary structure 5 are all symmetrically arranged in two places, and the fixing structure 4 is arranged in four places, and a shielding structure 6 is arranged between the two second adjusting components 3; In this embodiment, the first adjustment component 2 includes: a vertical cylinder 201 and a sliding column 202; the vertical cylinder 201 is fixedly disposed on the top of the adjustment plate 103; the sliding column 202 is slidably disposed inside the vertical cylinder 201; the second adjustment component 3 includes: an adjustment frame 301, an adjustment shaft 302, an adjustment seat 303, and a worm gear B304; the adjustment frame 301 is fixedly disposed on the top of the sliding column 202; the adjustment shaft 302 is rotatably disposed inside both sides of the adjustment frame 301; the adjustment seat 303 is fixedly disposed outside the adjustment shaft 302; the worm gear B304 is fixedly disposed on the top of the adjustment shaft 302; a worm gear A104 is fixedly disposed on the outside of the vertical shaft 102, and a worm A105 is rotatably disposed inside the fixed box 101; a handwheel is fixedly disposed on the top of the worm A105, and the worm A105... 5 meshes with the worm gear A104; an annular groove 106 is provided inside the bottom side of the adjusting disc 103, and a ball bearing 107 is rotatably arranged inside the top side of the fixed box 101; the ball bearings 107 are arranged in a ring array, and the ball bearings 107 are movably arranged inside the annular groove 106; the first adjusting component 2 also includes: a fixed plate 203, an adjusting screw 204, a bevel gear A205, a horizontal shaft 206, and a bevel gear B207; the fixed plate 203 is fixedly arranged inside the vertical cylinder 201; the adjusting screw 204 is rotatably arranged inside the fixed plate 203, and the adjusting screw 204 is threadedly connected to the sliding column 202; the bevel gear A205 is fixedly arranged at the bottom end of the adjusting screw 204; the horizontal shaft 206 is rotatably arranged inside the bottom side of the vertical cylinder 201, and the horizontal shaft B207 is rotatably arranged inside the vertical cylinder 201. A handwheel is fixedly installed at one end of shaft 206; a bevel gear B207 is fixedly installed at the other end of the horizontal shaft 206, and the bevel gear B207 meshes with the bevel gear A205; the second adjustment assembly 3 also includes: a fixed box 305 and a worm gear B306; the fixed box 305 is fixedly installed on the outside of the adjustment frame 301, and the fixed box 305 is located on the outside of the worm wheel B304; the worm gear B306 is rotatably installed inside the fixed box 305, and the worm gear B306 meshes with the worm wheel B304, and a handwheel is fixedly installed at the bottom end of the worm gear B306; the fixing structure 4 includes: a leg support 401, a soft pad 402, a braided strap A403, a connecting ring 404, a braided strap B405, a hook and loop fastener 406 and a loop fastener 407; the leg support 401 is fixedly installed On the outside of the adjusting seat 303; a soft pad 402 is fixedly installed on the top of the leg bracket 401, and the top of the soft pad 402 is set with an arc structure; a braided strap A403 is fixed to one side of the soft pad 402; a connecting ring 404 is rotatably installed on the top of the braided strap A403; a braided strap B405 is fixed to the other side of the soft pad 402, and the braided strap B405 can pass through the connecting ring 404 and be folded in half; a hook and loop fastener 406 is sewn onto the braided strap B405; a loop fastener 407 is sewn onto the braided strap B405, and the loop fastener 407 and the hook and loop fastener 406 are bonded together when the braided strap B405 is folded in half; its specific function is: by setting a worm gear A105, a worm wheel A104 and a vertical shaft 102, the lateral angle of the vertical cylinder 201 can be adjusted;This allows for adjustment of the lateral angle of the fixation structure 4 based on the opening and closing angle of the patient's legs; simultaneously, the vertical angle of the fixation structure 4 can be adjusted using the second adjustment component 3, which facilitates adjustment of the vertical angle of the fixation structure 4 according to the degree of flexion of the patient's knee joint.

[0034] Example 2: Please refer to Figure 6 and Figure 7 As shown: Based on Embodiment 1, the auxiliary structure 5 includes: an auxiliary frame 501, a double-ended screw 502, a sliding seat 503, an auxiliary plate 504, a connecting seat 505, a support plate 506, and an auxiliary pad 507; the auxiliary frame 501 is fixedly mounted on the top of the adjusting frame 301; the double-ended screw 502 is rotatably mounted inside the auxiliary frame 501, and a handwheel is fixedly mounted on the top of the double-ended screw 502; the sliding seat 503 is slidably mounted inside the auxiliary frame 501 through a dovetail groove, and the sliding seat 503 is threadedly connected to the outside of the double-ended screw 502; the auxiliary plate 504 is rotatably mounted on the sliding seat 501. 3. Top: Connecting seat 505 is rotatably mounted on the end of auxiliary plate 504; Support plate 506 is fixedly mounted on the top of connecting seat 505; Auxiliary pad 507 is fixedly mounted on the top of support plate 506. Its specific function is: by setting double-headed screw 502 and sliding seat 503, as well as auxiliary plate 504 and connecting seat 505, the height of support plate 506 and auxiliary pad 507 can be adjusted; thus, according to the specific height of the patient's knee joint, the vertical position of auxiliary pad 507 can be flexibly adjusted so that the top of auxiliary pad 507 can fit tightly against the bottom of the patient's knee joint, providing stable and appropriate support.

[0035] Example 3: Please refer to Figure 2 , Figure 6 , Figure 9 and Figure 10As shown: Based on Embodiments 1 and 2, the shielding structure 6 includes: a fixed post 601, a threaded hole 602, a threaded rod 603, a stop block 604, a cloth tube 605, an elastic band 606, a shielding cloth 607, an elastic clip 608, and a storage bag 609; the fixed post 601 is fixedly installed on one side of the top of the adjusting frame 301; the threaded hole 602 is opened inside the top side of the fixed post 601; the threaded rod 603 is installed inside the threaded hole 602 through a threaded connection; the stop block 604 is fixedly installed on the top of the threaded rod 603, and the bottom of the stop block 604 is in contact with the top of the fixed post 601; the cloth tube 605 is movably installed on the outside of the fixed post 601, and the cloth tube 605 is... 5. Two sets are provided; an elastic band 606 is sewn between the two sets of fabric tubes 605; a covering cloth 607 is placed on the top outer side of the elastic band 606; an elastic clip 608 is clamped and fixed between the covering cloth 607 and the outer side of the elastic band 606; a storage bag 609 is sewn onto one side of the covering cloth 607; its specific function is: by providing a stop block 604, a threaded rod 603 and a threaded hole 602, the fabric tube 605 can be easily and conveniently installed on the outside of the fixing post 601, which facilitates the installation of the elastic band 606; at the same time, the elastic clip 608 can fix the covering cloth 607 to the elastic band 606; by installing the covering cloth 607, the patient's private parts can be covered.

[0036] The specific usage and function of this embodiment: In this invention, during use, the mounting bracket 1 is fixedly installed on the operating table. Rotating the horizontal shaft 206 causes the adjusting screw 204 to rotate via bevel gears A205 and B207, causing the sliding column 202 to move up and down inside the vertical cylinder 201, which in turn causes the adjusting bracket 301 to move the fixed structure 4 up and down. According to the patient's leg opening angle, rotating the handwheel drives the worm gear A105 to rotate, which in turn drives the worm wheel A104 to rotate. The worm wheel A104 then drives the vertical shaft 102 to rotate, thereby causing the adjusting disc 103 and its top first adjusting component 2 and second adjusting component 3 to rotate laterally as a whole. The lateral angle of the fixed structure 4 is adjusted to match the opening and closing angle of the patient's legs. Depending on the degree of knee flexion, the handwheel is turned, driving the worm gear B306 to rotate. The worm gear B306, through the worm wheel B304, drives the adjusting shaft 302 to rotate, thereby causing the adjusting seat 303 and leg support 401 to rotate vertically, completing the vertical angle adjustment of the fixed structure 4 and ensuring that the leg support 401 matches the degree of knee flexion of the patient. The patient is then assisted to place both legs on the soft pads 402 at the top of the leg support 401, ensuring good contact between the legs and the curved structure of the soft pads 402, distributing pressure on the legs and avoiding localized tenderness. The woven strap B405 is then passed through the connecting ring 404 for adjustment. Fold the fabric and adjust the tightness of the braided band B405 according to the patient's leg thickness to ensure accurate adhesion between the hook side 406 and the loop side 407 of the Velcro, ensuring a secure fixation of the leg and preventing slippage, while avoiding excessive tightness that could impair blood circulation. Then, slip the fabric tube 605 onto the fixing post 601 and screw the threaded rod 603 into the threaded hole 602, ensuring a tight fit between the bottom of the stop block 604 and the top of the fixing post 601, completing the installation of the fabric tube 605 and the elastic band 606. Place the covering cloth 607 on the top outer side of the elastic band 606 and use the elastic clip 608 to clamp and fix the covering cloth 607 to the elastic band 606. Depending on the specific height of the patient's knee joint, rotate the double-ended screw 502. The rotation of the double-headed screw 502 causes the two sets of sliding seats 503 to move synchronously in opposite directions. The two sets of sliding seats 503 drive the two sets of auxiliary plates 504 to rotate in opposite directions. The auxiliary plates 504 drive the support plate 506 and the auxiliary pad 507 to move up and down through the connecting seat 505, thereby adjusting the height of the auxiliary pad 507 so that the top of the auxiliary pad 507 fits tightly against the patient's knee joint, providing stable and appropriate support. After the above adjustment and fixation are completed, the covering cloth 607 has covered the patient's private parts, which can effectively avoid the patient's embarrassment and anxiety due to privacy exposure. If the patient needs it, the patient's underwear can be placed in the storage bag 609 on one side of the covering cloth 607 to prevent contamination.

[0037] The technical solutions of the present invention are not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all known technologies.

Claims

1. A lithotomy position immobilization stabilizer, characterized in that, The utility model relates to a kind of adjustable frame, including: Mounting frame (1);The top of the mounting frame (1) is fixedly provided with fixed box (101) on both sides, and vertical shaft (102) is rotatably arranged in fixed box (101), and adjusting disc (103) is fixedly arranged at the top of vertical shaft (102);The first adjusting assembly (2) is fixedly arranged at the top of adjusting disc (103), and the second adjusting assembly (3) is fixedly arranged at the top of the first adjusting assembly (2);Fixed structure (4) is fixedly arranged on the outer side of the second adjusting assembly (3), and the second adjusting assembly (3) is fixedly arranged at the top of auxiliary structure (5);The first adjusting assembly (2) and the second adjusting assembly (3) and auxiliary structure (5) are symmetrically provided with two, and fixed structure (4) is provided with four, and the second adjusting assembly (3) between two is provided with shielding structure (6); The first adjusting assembly (2) includes: vertical cylinder (201) and sliding column (202);Vertical cylinder (201) is fixedly arranged at the top of adjusting disc (103);Sliding column (202) is slidably arranged in vertical cylinder (201);The second adjusting assembly (3) includes: adjusting frame (301), adjusting shaft (302), adjusting seat (303) and worm wheel B (304);Adjusting frame (301) is fixedly arranged at the top of sliding column (202);Adjusting shaft (302) is rotatably arranged in the inside of adjusting frame (301) on both sides;Adjusting seat (303) is fixedly arranged on the outer side of adjusting shaft (302);Worm wheel B (304) is fixedly arranged at the top of adjusting shaft (302).

2. The lithotomy position immobilization stabilizer of claim 1, wherein: Worm wheel A (104) is fixedly arranged on the outer side of vertical shaft (102), and worm A (105) is rotatably arranged in fixed box (101);Hand wheel is fixedly arranged at the top of worm A (105), and worm A (105) is engaged with worm wheel A (104).

3. The lithotomy position immobilization stabilizer of claim 1, wherein: Annular groove (106) is formed in the bottom of adjusting disc (103), and ball (107) is rotatably arranged in the inside of fixed box (101) on the top side;Ball (107) is arranged in annular array, and ball (107) is movably arranged in annular groove (106).

4. The lithotomy position immobilization stabilizer of claim 1, wherein: The first adjusting assembly (2) further includes: fixed plate (203), adjusting screw rod (204), bevel gear A (205), horizontal shaft (206) and bevel gear B (207);Fixed plate (203) is fixedly arranged in vertical cylinder (201);Adjusting screw rod (204) is rotatably arranged in fixed plate (203), and adjusting screw rod (204) is rotatably arranged in sliding column (202) by screw connection;Bevel gear A (205) is fixedly arranged at the bottom of adjusting screw rod (204);Horizontal shaft (206) is rotatably arranged in the bottom of vertical cylinder (201), and hand wheel is fixedly arranged at one end of horizontal shaft (206);Bevel gear B (207) is fixedly arranged at the other end of horizontal shaft (206), and bevel gear B (207) is engaged with bevel gear A (205).

5. The lithotomy position immobilization stabilizer of claim 1, wherein: The second adjusting assembly (3) further comprises a fixed box (305) and a worm B (306); the fixed box (305) is fixedly arranged outside the adjusting frame (301), and the fixed box (305) is located outside the worm wheel B (304); the worm B (306) is rotatably arranged inside the fixed box (305), and the worm B (306) is engaged with the worm wheel B (304), and the bottom end of the worm B (306) is fixedly provided with a hand wheel.

6. The lithotomy position immobilization stabilizer of claim 1, wherein: The fixing structure (4) comprises a supporting leg frame (401), a soft pad (402), a woven belt A (403) and a connecting ring (404); the supporting leg frame (401) is fixedly arranged outside the adjusting seat (303); the soft pad (402) is fixedly arranged on the top of the supporting leg frame (401), and the top of the soft pad (402) is arranged in an arc-shaped structure; the woven belt A (403) is fixed on one side of the soft pad (402); and the connecting ring (404) is rotatably arranged on the top of the woven belt A (403).

7. The lithotomy position immobilization stabilizer of claim 6, wherein: The fixing structure (4) further comprises a woven belt B (405), a Velcro hook surface (406) and a Velcro loop surface (407); the woven belt B (405) is fixed on the other side of the soft pad (402), and the woven belt B (405) can be folded in half through the connecting ring (404); the Velcro hook surface (406) is sewn on the woven belt B (405); the Velcro loop surface (407) is sewn on the woven belt B (405), and the Velcro loop surface (407) and the Velcro hook surface (406) are adhered to each other when the woven belt B (405) is folded in half.

8. The lithotomy position immobilization stabilizer of claim 1, wherein: The auxiliary structure (5) comprises an auxiliary frame (501), a double-headed screw rod (502), a sliding seat (503), an auxiliary plate (504), a connecting seat (505), a supporting plate (506) and an auxiliary pad (507); the auxiliary frame (501) is fixedly arranged on the top of the adjusting frame (301); the double-headed screw rod (502) is rotatably arranged inside the auxiliary frame (501), and the top end of the double-headed screw rod (502) is fixedly provided with a hand wheel; the sliding seat (503) is slidably arranged inside the auxiliary frame (501) through a dovetail groove, and the sliding seat (503) is threadedly connected to the outside of the double-headed screw rod (502); the auxiliary plate (504) is rotatably arranged on the top of the sliding seat (503); the connecting seat (505) is rotatably arranged at the end of the auxiliary plate (504); the supporting plate (506) is fixedly arranged on the top of the connecting seat (505); and the auxiliary pad (507) is fixedly arranged on the top of the supporting plate (506).

9. The lithotomy position immobilization stabilizer of claim 1, wherein: The shielding structure (6) comprises a fixed column (601), a threaded hole (602), a threaded rod (603), a stop block (604), a cloth tube (605) and an elastic band (606); the fixed column (601) is fixedly arranged on one side of the top of the adjusting frame (301); the threaded hole (602) is formed in the inner top side of the fixed column (601); the threaded rod (603) is arranged in the threaded hole (602) through threaded connection; the stop block (604) is fixedly arranged on the top end of the threaded rod (603), and the bottom of the stop block (604) is attached to the top end of the fixed column (601); the cloth tube (605) is movably arranged outside the fixed column (601), and the cloth tube (605) is provided with two groups; the elastic band (606) is sewn between the two groups of cloth tubes (605).

10. The lithotomy position immobilization stabilizer of claim 9, wherein: The shielding structure (6) further comprises shielding cloth (607), an elastic clip (608) and a storage cloth bag (609); the shielding cloth (607) is placed outside the top of the elastic band (606); the elastic clip (608) is clamped and fixed between the outside of the shielding cloth (607) and the elastic band (606); the storage cloth bag (609) is sewn on one side of the shielding cloth (607).

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