Bladder lithotomy position leg frame with deep vein thrombosis prevention function

Abstract

The invention discloses a bladder lithotomy position leg frame with a deep vein thrombosis prevention function, and relates to the technical field of medical leg frames, the bladder lithotomy position leg frame comprises a leg frame body, through grooves are formed in the two ends of the leg frame body, side plates are fixedly connected to the bottom surfaces of the two ends of the leg frame body, and threaded rods are in threaded connection with the side plates; one end of the threaded rod is fixedly connected with an adjusting head, the other end of the threaded rod is rotationally connected to a sliding block, the top end of the sliding block extends to the top face position of the leg frame body through the through groove, and the top end of the sliding block is fixedly connected with a clamping plate. According to the invention, the structure is reasonable, the angle of the support can be conveniently adjusted through cooperative use of the adjusting assembly and the limiting assembly, blood circulation of legs of a patient is promoted through intermittent inflation pressurization and heat preservation, and then the legs of the patient can be opened through the stretching assembly.

Description

Technical Field

[0001] The invention relates to the technical field of medical leg supports, in particular to a lithotomy position leg support with a deep vein thrombosis prevention function. Background Art

[0002] The lithotomy position was designed to facilitate surgical procedures in urology, obstetrics and gynecology, and anorectal surgeries. This position maximizes perineal exposure, allowing surgical instruments to enter the perineum from various angles, improving surgical convenience and efficiency. For example, in urology procedures such as cystoscopy and transurethral resection of the prostate, the lithotomy position provides excellent visibility and space. It also facilitates gynecological and obstetric procedures such as curettage and delivery. However, prolonged lithotomy position significantly increases the risk of deep vein thrombosis (DVT) in the lower extremities. This is because blood flow to the lower extremities is obstructed in this position, slowing venous return. Furthermore, the patient's inability to move their lower extremities during surgery leads to blood stasis, significantly increasing the risk of thrombosis. Once a DVT forms and breaks free, it can lead to potentially fatal complications such as pulmonary embolism.

[0003] Existing lithotomy leg rests are bolted to the bed frame. The patient then places their legs on the rest, which then rotates to open the legs, facilitating surgical procedures. However, existing leg rests have a single adjustable angle, and prolonged use can cause leg numbness, hindering surgical procedures. Furthermore, existing leg rests lack effective features for preventing deep vein thrombosis, such as intermittent pneumatic compression and temperature control, failing to meet clinical safety requirements. Summary of the Invention

[0004] In response to the defects in the prior art, the present invention provides a bladder lithotomy position leg stand with a deep vein thrombosis prevention function, comprising a leg stand body, through slots being provided at both ends of the leg stand body, side panels being fixedly connected to the bottom surfaces of both ends of the leg stand body, threaded rods being threadedly connected to the side panels, one end of the threaded rod being fixedly connected to an adjusting head, the other end of the threaded rod being rotatably connected to a slider, the top end of the slider extending to the top surface of the leg stand body through the through slot, the top end of the slider being fixedly connected to a splint, a pair of brackets being provided on the leg stand body, and handles being fixedly connected to the other ends of the pair of brackets;

[0005] It also includes an adjustment component, a limiting component and a stretching component, as well as an intermittent inflation and pressurization device and a lower limb thermal insulation and temperature control device. The adjustment component is arranged at the bottom surface of the leg frame body for coordinated use, the limiting component is arranged on the bracket for coordinated use, the stretching component is arranged at the bottom surface of the leg frame body for coordinated use, and the intermittent inflation and pressurization device and the lower limb thermal insulation and temperature control device are arranged on the bracket.

[0006] Preferably, the adjustment assembly includes a pair of first axle seats fixedly mounted on the bottom surface of the leg frame body, a first rotating rod is rotatably connected between the pair of first axle seats, one end of the first rotating rod is fixedly connected to the output end of the driving motor, the driving motor is fixedly mounted on the bracket, the top end of the bracket is fixedly connected to the bottom surface of the leg frame body, and a first gear is fixedly connected to the first rotating rod.

[0007] Preferably, a second gear is engaged with the first gear, the second gear is fixedly connected to a second rotating rod, the second rotating rod is rotatably connected to a pair of second axle seats, the top end of the second axle seat is fixedly connected to the bottom surface of the leg frame body, the two ends of the second rotating rod are fixedly connected to a sleeve, the surface of the sleeve is fixedly connected to a connecting seat, a socket is provided on the connecting seat, and the bracket is rotatably connected to the inside of the socket.

[0008] Preferably, the limiting assembly includes a sleeve rod slidably connected to the bracket, the surface of the sleeve rod is fixedly connected to a support plate, the top of the support plate is fixedly connected to a support plate, the top surface of the support plate is fixedly installed with a hinge seat, the hinge seat is rotatably connected to a carrier, a magic belt is installed on the carrier, a sponge rack is fixedly installed on the carrier, the surface of the bracket is fixedly connected to a side seat, the side seat is fixedly connected to a positioning rod, and the other end of the positioning rod is fixedly connected to a snap ring.

[0009] Preferably, the surface of the sleeve rod is fixedly connected to the adjusting block, the bracket is inserted into the interior of the adjusting block, sliding grooves are provided on both sides of the adjusting block, the interior of the sliding grooves is slidably connected to a sleeve, the sleeve is sleeved on the side rod, one end of the side rod is fixedly connected to the third axle seat, the third axle seat is fixedly connected to one side of the adjusting block, the other end of the sleeve is fixedly connected to a clamping block, the bottom surface of the clamping block is provided with a first arc groove, the first arc groove is attached to the surface of the bracket, the top surface of the clamping block is fixedly connected to a top block, and the top surface of the top block is provided with a second arc groove.

[0010] Preferably, the top surface of the adjustment block is fixedly connected to a fourth shaft seat, a cross bar is rotatably connected to the fourth shaft seat, a cam is fixedly connected to the middle end of the cross bar, a pull block is fixedly connected to the surface of the cam, and the cam fits inside the second arc groove.

[0011] Preferably, the stretching assembly includes a first arm plate fixedly connected to the bottom end of the bracket, the other end of the first arm plate is fixedly connected to a first axle pin, the top end of the first axle pin is rotatably connected to the second arm plate, the other end of the second arm plate is rotatably connected to the second axle pin, the bottom end of the second axle pin is fixedly connected to the cross plate, the middle position of the bottom surface of the cross plate is fixedly connected to the base, the base is fixedly connected to the telescopic rod, the telescopic rod is fixedly installed on the frame body, the other end of the frame body is fixedly connected to a ring, and the ring is fixedly connected to the second rotating rod.

[0012] Preferably, the intermittent inflation and pressurization device includes an air bag fixedly connected to the cargo rack, the air bag is connected to the air pump through an air tube, the air pump is fixedly mounted on the leg frame body, the air pump is electrically connected to the controller, and the controller has an adjustable intermittent inflation mode setting function and a pressure monitoring and display function.

[0013] Preferably, the lower limb thermal insulation and temperature control device includes a heating element embedded in the carrier, the heating element is electrically connected to a temperature controller, and the temperature controller is arranged on the surface of the carrier.

[0014] The beneficial effects of the present invention are as follows: when the angle of the support needs to be adjusted based on time, a drive motor is activated. The drive motor is electrically connected to a control unit and its operating principle is based on existing technology. The operation of the drive motor rotates the first rotating rod, which in turn rotates the first gear. The rotation of the first gear drives the second gear, thereby facilitating the rotation of the second rotating rod on the second gear. The rotation of the second rotating rod facilitates the adjustment of the angle of the support within the socket, thereby promoting blood circulation in the patient's leg. Simultaneously, the intermittent pneumatic pressurization device simulates the function of a muscle contraction pump, periodically applying and releasing pressure to the lower limb, effectively promoting venous return and reducing blood stasis. The lower limb insulation and temperature control device accurately maintains the lower limb temperature within the ideal range of 36.5-37 degrees Celsius, optimizing the vascular environment, promoting microcirculation, and reducing core temperature loss. The special pressure-reducing material layer evenly distributes contact pressure to prevent blood flow obstruction caused by prolonged local tissue pressure. These multiple protective mechanisms work together to significantly reduce the risk of deep vein thrombosis in the lower limb during prolonged surgery, thereby improving surgical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the leg frame body;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the leg frame body when viewed from above;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the side panel when viewed from above;

[0019] Figure 4 Schematic diagram of the three-dimensional structure of the bracket;

[0020] Figure 5 Schematic diagram of the three-dimensional structure of the carrier;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the adjustment block;

[0022] Figure 7 Schematic diagram of the three-dimensional structure of the frame;

[0023] Figure 8 for Figure 6 Enlarged structural diagram at point A in the middle.

[0024] In the accompanying drawings, 1. leg frame body; 101. through slot; 102. side plate; 103. threaded rod; 104. adjusting head; 105. slider; 106. splint; 107. bracket; 108. handle; 2. first shaft seat; 201. first rotating rod; 202. driving motor; 203. bracket; 204. first gear; 205. second gear; 206. second rotating rod; 207. second shaft seat; 208. sleeve; 209. connecting seat; 210. socket; 3. sleeve rod; 301. supporting plate; 302. supporting plate; 303. hinged seat; 304. carrying rack; 305. magic belt; 306. sponge rack; 307. side seat; 308. positioning rod; 309 , snap ring; 4, adjusting block; 401, slide groove; 402, sleeve; 403, side rod; 404, third shaft seat; 405, clamping block; 406, first arc groove; 407, top block; 408, second arc groove; 409, fourth shaft seat; 410, cross bar; 411, cam; 412, pull block; 5, first arm plate; 501, first axis pin; 502, second arm plate; 503, second axis pin; 504, cross plate; 505, base; 506, telescopic rod; 507, frame; 508, sleeve; 601, air bag; 602, air pipe; 603, air pump; 604, controller; 605, display screen; 701, heating element; 702, temperature controller. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0027] like Figure 1 - Figure 8 As shown, a bladder lithotomy leg stand with a deep vein thrombosis prevention function includes a leg stand body 1, a through slot 101 is opened at both ends of the leg stand body 1, and a side plate 102 is fixedly connected to the bottom surface of the two ends of the leg stand body 1. A threaded rod 103 is threadedly connected to the side plate 102, and one end of the threaded rod 103 is fixedly connected to an adjusting head 104. The other end of the threaded rod 103 is rotatably connected to a slider 105. The top of the slider 105 extends to the top surface of the leg stand body 1 through the through slot 101. The top of the slider 105 is fixedly connected to There is a splint 106, and a pair of brackets 107 are set on the leg frame body 1, and the other end of the pair of brackets 107 is fixedly connected to a handle 108; it also includes an adjustment component, a limit component, a stretching component, an intermittent inflation and pressurization device and a lower limb thermal insulation temperature control device. The adjustment component is set at the bottom surface of the leg frame body 1 for coordinated use, the limit component is set on the bracket 107 for coordinated use, the stretching component is set at the bottom surface of the leg frame body 1 for coordinated use, and the intermittent inflation and pressurization device and the lower limb thermal insulation temperature control device are set on the bracket 107.

[0028] Among them, it should be noted that when fixing the leg frame body 1 on the bed frame, the leg frame body 1 is fitted as a whole to the bottom position of the bed frame, and then the adjusting head 104 is rotated. The rotation of the adjusting head 104 makes it easier for the threaded rod 103 to push the slider 105 to move, and the movement of the slider 105 drives the splint 106 to move, so that the splint 106 is clamped at the top position of the bed frame, thereby facilitating the leg frame body 1 to be fixed to the bed frame.

[0029] Furthermore, the adjustment component includes a pair of first axle seats 2 fixedly mounted on the bottom surface of the leg frame body 1, a first rotating rod 201 is rotatably connected between the pair of first axle seats 2, one end of the first rotating rod 201 is fixedly connected to the output end of the driving motor 202, the driving motor 202 is fixedly mounted on the bracket 203, the top end of the bracket 203 is fixedly connected to the bottom surface of the leg frame body 1, the first rotating rod 201 is fixedly connected to the first gear 204, the first gear 204 is meshed with the second gear 205, the second gear 205 is fixedly connected to the second rotating rod 206, the second rotating rod 206 is rotatably connected to a pair of second axle seats 207, the top end of the second axle seat 207 is fixedly connected to the bottom surface of the leg frame body 1, the two ends of the second rotating rod 206 are fixedly connected to the sleeve 208, the surface of the sleeve 208 is fixedly connected to the connecting seat 209, the connecting seat 209 is provided with a socket 210, and the inside of the socket 210 is rotatably connected to the bracket 107;

[0030] Among them, when the angle of the bracket 107 needs to be adjusted according to time, the drive motor 202 is operated. The drive motor 202 is electrically connected through the control unit. The working principle is referenced by the existing technology. The operation of the drive motor 202 rotates the first rotating rod 201. The rotation of the first rotating rod 201 rotates the first gear 204. The rotation of the first gear 204 drives the second gear 205 to rotate, thereby facilitating the rotation of the second rotating rod 206 on the second gear 205. The rotation of the second rotating rod 206 facilitates the adjustment of the angle of the bracket 107 inside the jack 210 to promote blood circulation in the patient's legs.

[0031] Furthermore, the limiting assembly includes a sleeve rod 3 that is slidably connected to the bracket 107, the surface of the sleeve rod 3 is fixedly connected to a support plate 301, the top of the support plate 301 is fixedly connected to a supporting plate 302, the top surface of the supporting plate 302 is fixedly installed with a hinge seat 303, the hinge seat 303 is rotatably connected to a carrier 304, the carrier 304 is equipped with a magic belt 305, the carrier 304 is fixedly installed with a sponge rack 306, the surface of the bracket 107 is fixedly connected to a side seat 307, the side seat 307 is fixedly connected to a positioning rod 308, the other end of the positioning rod 308 is fixedly connected to a snap ring 309, the surface of the sleeve rod 3 is fixedly connected to an adjusting block 4, the interior of the adjusting block 4 is inserted with a bracket 107, and sliding grooves 401 are provided on both sides of the adjusting block 4. There is a sleeve seat 402, which is sleeved on the side rod 403, one end of the side rod 403 is fixedly connected to the third shaft seat 404, the third shaft seat 404 is fixedly connected to one side of the adjusting block 4, and the other end of the sleeve seat 402 is fixedly connected to a clamping block 405, the bottom surface of the clamping block 405 is provided with a first arc groove 406, the first arc groove 406 fits on the surface of the bracket 107, the top surface of the clamping block 405 is fixedly connected to a top block 407, the top surface of the top block 407 is provided with a second arc groove 408, the top surface of the adjusting block 4 is fixedly connected to a fourth shaft seat 409, the fourth shaft seat 409 is rotatably connected to a cross bar 410, the middle end of the cross bar 410 is fixedly connected to a cam 411, the surface of the cam 411 is fixedly connected to a pull block 412, and the cam 411 fits inside the second arc groove 408;

[0032] Among them, the patient places the calf inside the sponge rack 306 and then fixes it with the magic belt 305. When the height of the sponge rack 306 needs to be adjusted, the pull block 412 is pulled. The pulling of the pull block 412 causes the cam 411 to rotate, so that the cam 411 is disengaged from the bottom of the second arc groove 408. The top block 407 is fixedly connected to the clamping block 405. When the cam 411 is disengaged from the inside of the second arc groove 408, the friction between the first arc groove 406 on the clamping block 405 and the positioning rod 308 is reduced, thereby facilitating the adjustment of the height of the sponge rack 306 according to usage habits.

[0033] Furthermore, the stretching assembly includes a first arm plate 5 fixedly connected to the bottom end of the bracket 107, the other end of the first arm plate 5 is fixedly connected to the first axle pin 501, the top end of the first axle pin 501 is rotatably connected to the second arm plate 502, the other end of the second arm plate 502 is rotatably connected to the second axle pin 503, the bottom end of the second axle pin 503 is fixedly connected to the cross plate 504, the middle position of the bottom surface of the cross plate 504 is fixedly connected to the base 505, the base 505 is fixedly connected to the telescopic rod 506, the telescopic rod 506 is fixedly installed on the frame 507, the other end of the frame 507 is fixedly connected to the ring 508, and the ring 508 is fixedly connected to the second rotating rod 206.

[0034] Among them, when the bracket 107 needs to be rotated, a ring 508 is fixedly connected to the second rotating rod 206, and the surface of the ring 508 is fixedly connected to the frame 507, and a telescopic rod 506 is fixedly installed on the frame 507, and the other end of the telescopic rod 506 is fixedly connected to the base 505. The telescopic rod 506 pushes the base 505, thereby facilitating the movement of the horizontal plate 504 on the base 505. The movement of the horizontal plate 504 facilitates the rotation of the bracket 107 through the coordinated use of the second arm plate 502 and the first arm plate 5, thereby opening the patient's legs and increasing the doctor's surgical field of view.

[0035] The intermittent pneumatic pressurization device includes an airbag 601 fixedly connected to the inner side of the carrier 304. The airbag 601 is connected to the air pump 603 through the trachea 602. The air pump 603 is fixedly mounted on the leg frame body 1 and is electrically connected to the controller 604. The controller 604 has an adjustable intermittent inflation mode setting function, which can set different inflation frequencies and pressures according to the length of the operation and the patient's thrombosis risk level. The controller 604 is provided with a display screen 605 for displaying the inflation pressure, inflation cycle, and inflation time. The intermittent pneumatic pressurization system promotes venous return by simulating muscle contraction, effectively preventing blood stasis and thrombosis.

[0036] The lower limb insulation and temperature control device includes a heating element 701 embedded in the carrier 304. The heating element 701 is electrically connected to a temperature controller 702, which is mounted on the surface of the carrier 304. The temperature controller 702 can precisely control the temperature within a range of 36.5-37 degrees Celsius. By continuously monitoring and maintaining the lower limb surface temperature within the ideal range, it optimizes the vascular environment, reduces core temperature loss, and further prevents thrombosis.

[0037] The inside of the carrier 304 is coated with a special pressure-reducing material layer. This layer is composed of a multi-layer structure, including an outer layer of medical-grade silicone, a middle layer of highly elastic memory foam, and an inner layer of a honeycomb pressure-reducing structure. This multi-layer design evenly distributes contact pressure, reducing localized compression and preventing tissue damage and blood flow obstruction that can occur during prolonged surgeries.

[0038] Through the above design, the present invention not only meets the basic functional requirements of the lithotomy position but also significantly improves patient safety during prolonged surgery by synergistically preventing deep vein thrombosis through multiple mechanisms. The dual preventative measures of a temperature control system and an intermittent pneumatic pressurization system, combined with the angle adjustment function, form a comprehensive thrombosis prevention solution.

[0039] The working principle of the present invention is as follows: when the angle of the bracket 107 needs to be adjusted according to time, the drive motor 202 is operated. The drive motor 202 is electrically connected through the control unit. The working principle is referenced by the existing technology. The operation of the drive motor 202 causes the first rotating rod 201 to rotate. The rotation of the first rotating rod 201 causes the first gear 204 to rotate. The rotation of the first gear 204 drives the second gear 205 to rotate, thereby facilitating the rotation of the second rotating rod 206 on the second gear 205. The rotation of the second rotating rod 206 facilitates the adjustment of the angle of the bracket 107 inside the socket 210, thereby promoting blood circulation in the patient's legs.

[0040] The patient places the calf inside the sponge rack 306 and then fixes it with the magic tape 305. When the height of the sponge rack 306 needs to be adjusted, the pulling block 412 is pulled. The pulling of the pulling block 412 causes the cam 411 to rotate, so that the cam 411 is separated from the bottom of the second arc-shaped groove 408. The top block 407 is fixedly connected to the clamping block 405. When the cam 411 is separated from the inside of the second arc-shaped groove 408, the friction between the first arc-shaped groove 406 on the clamping block 405 and the positioning rod 308 is reduced, thereby facilitating the height adjustment of the sponge rack 306 according to user habits.

[0041] When the bracket 107 needs to be rotated, a ring 508 is fixedly connected to the second rotating rod 206, and the surface of the ring 508 is fixedly connected to the frame 507, and a telescopic rod 506 is fixedly installed on the frame 507, and the other end of the telescopic rod 506 is fixedly connected to the base 505. The telescopic rod 506 pushes the base 505, thereby facilitating the movement of the horizontal plate 504 on the base 505. The movement of the horizontal plate 504 facilitates the rotation of the bracket 107 through the coordinated use of the second arm plate 502 and the first arm plate 5, thereby opening the patient's legs and increasing the doctor's surgical field of view.

[0042] During surgery, the intermittent inflation and compression device operates according to a preset program. Air pump 603 periodically inflates and deflates airbag 601, creating intermittent pressure fluctuations that simulate the function of a muscle pump and promote venous return in the patient's lower extremities. Controller 604 adjusts the inflation cycle and pressure based on the duration of the surgery and the patient's specific condition. Display screen 605 displays operating parameters in real time, facilitating monitoring by medical staff.

[0043] At the same time, the lower limb thermal insulation and temperature control device continues to work, and the temperature sensor monitors the surface temperature of the patient's lower limbs in real time. The temperature controller 702 adjusts the working state of the heating element 701 according to the monitoring results, and accurately maintains the lower limb temperature within the ideal range of 36.5-37 degrees Celsius, creating an optimal blood circulation environment while reducing core temperature loss.

[0044] The pressure-relieving material layer fully protects the patient's lower limb tissue, dispersing pressure and reducing blood flow obstruction and tissue damage caused by localized compression. This specialized multi-layered material adapts to the shape of the patient's leg while maintaining sufficient support and reducing the risk of blood flow obstruction caused by excessive localized pressure.

[0045] Through the coordinated work of the above multiple preventive measures, the present invention effectively solves the risk of deep vein thrombosis in the lower limbs caused by the traditional lithotomy leg support during long-term surgery, significantly improving patient safety.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A lithotomy leg support with deep vein thrombosis prevention function, comprising a leg support body (1), characterized in that: Through slots (101) are provided at both ends of the leg frame body (1), and the bottom surfaces of both ends of the leg frame body (1) are fixedly connected with side plates (102), and the side plates (102) are threadedly connected with threaded rods (103), and one end of the threaded rod (103) is fixedly connected with an adjusting head (104), and the other end of the threaded rod (103) is rotatably connected to a slider (105), and the top end of the slider (105) extends to the top surface of the leg frame body (1) through the through slot (101), and the top end of the slider (105) is fixedly connected with a splint (106), and a pair of brackets (107) are provided on the leg frame body (1), and the other ends of the pair of brackets (107) are fixed. The leg support body (1) is fixedly connected with a handle (108); it also includes an adjustment component, a limit component, a stretching component, an intermittent inflation and pressurization device and a lower limb thermal insulation temperature control device, wherein the adjustment component is arranged at the bottom surface of the leg support body (1) for coordinated use, the limit component is arranged on the bracket (107) for coordinated use, and the stretching component is arranged at the bottom surface of the leg support body (1) for coordinated use, the intermittent inflation and pressurization device includes an air bag (601) fixedly connected to the limit component and a control system connected to the air bag (601), and the lower limb thermal insulation temperature control device includes a heating element (701) arranged on the limit component and a temperature controller (702) for controlling the heating element (701).

2. The lithotomy leg support with deep vein thrombosis prevention function according to claim 1, characterized in that: The adjustment assembly comprises a pair of first axle seats (2) fixedly mounted on the bottom surface of the leg frame body (1); a first rotating rod (201) is rotatably connected between the pair of first axle seats (2); one end of the first rotating rod (201) is fixedly connected to the output end of the driving motor (202); the driving motor (202) is fixedly mounted on a bracket (203); the top end of the bracket (203) is fixedly connected to the bottom surface of the leg frame body (1); and a first gear (204) is fixedly connected to the first rotating rod (201).

3. The lithotomy leg support with deep vein thrombosis prevention function according to claim 2, characterized in that: The first gear (204) is meshed with a second gear (205), the second gear (205) is fixedly connected to a second rotating rod (206), the second rotating rod (206) is rotatably connected to a pair of second axle seats (207), the top end of the second axle seat (207) is fixedly connected to the bottom surface of the leg frame body (1), the two ends of the second rotating rod (206) are fixedly connected to a sleeve (208), the surface of the sleeve (208) is fixedly connected to a connecting seat (209), a socket (210) is provided on the connecting seat (209), and the interior of the socket (210) is rotatably connected to the bracket (107).

4. The lithotomy leg support with deep vein thrombosis prevention function according to claim 2, characterized in that: The limiting assembly comprises a sleeve rod (3) slidably connected to the bracket (107); a support plate (301) is fixedly connected to the surface of the sleeve rod (3); a top end of the support plate (301) is fixedly connected to a support plate (302); a hinge seat (303) is fixedly installed on the top surface of the support plate (302); a carrier (304) is rotatably connected to the hinge seat (303); a magic belt (305) is installed on the carrier (304); a sponge rack (306) is fixedly installed on the carrier (304); a side seat (307) is fixedly connected to the surface of the bracket (107); a positioning rod (308) is fixedly connected to the side seat (307); and the other end of the positioning rod (308) is fixedly connected to a snap ring (309).

5. The lithotomy leg support with deep vein thrombosis prevention function according to claim 4, characterized in that: The surface of the sleeve rod (3) is fixedly connected with an adjusting block (4), the interior of the adjusting block (4) is inserted with the bracket (107), the two sides of the adjusting block (4) are provided with sliding grooves (401), the interior of the sliding grooves (401) is slidably connected with a sleeve seat (402), the sleeve seat (402) is sleeved on the side rod (403), one end of the side rod (403) is fixedly connected to the third shaft seat (404), the third shaft seat (404) is fixedly connected to one side of the adjusting block (4), the other end of the sleeve seat (402) is fixedly connected with a clamping block (405), the bottom surface of the clamping block (405) is provided with a first arc groove (406), the first arc groove (406) is attached to the surface of the bracket (107), the top surface of the clamping block (405) is fixedly connected with a top block (407), the top surface of the top block (407) is provided with a second arc groove (408).

6. The lithotomy leg support with deep vein thrombosis prevention function according to claim 5, characterized in that: The top surface of the regulating block (4) is fixedly connected to a fourth shaft seat (409), a cross bar (410) is rotatably connected to the fourth shaft seat (409), a cam (411) is fixedly connected to the middle end of the cross bar (410), a pull block (412) is fixedly connected to the surface of the cam (411), and the cam (411) is fitted inside the second arc-shaped groove (408).

7. The lithotomy leg support with deep vein thrombosis prevention function according to claim 3, characterized in that: The stretching assembly includes a first arm plate (5) fixedly connected to the bottom end of the bracket (107), the other end of the first arm plate (5) is fixedly connected to a first axle pin (501), the top end of the first axle pin (501) is rotatably connected to a second arm plate (502), the other end of the second arm plate (502) is rotatably connected to a second axle pin (503), the bottom end of the second axle pin (503) is fixedly connected to a transverse plate (504), the middle position of the bottom surface of the transverse plate (504) is fixedly connected to a base (505), a telescopic rod (506) is fixedly connected to the base (505), the telescopic rod (506) is fixedly installed on a frame body (507), the other end of the frame body (507) is fixedly connected to a collar (508), and the collar (508) is fixedly connected to the second rotating rod (206).

8. The lithotomy leg support with deep vein thrombosis prevention function according to claim 4, characterized in that: The leg frame (304) further comprises an intermittent inflation and pressurization device, the intermittent inflation and pressurization device comprising an air bag (601) fixedly connected to the inner side of the cargo carrier (304), the air bag (601) being connected to an air pump (603) via an air tube (602), the air pump (603) being fixedly mounted on the leg frame body (1), the air pump (603) being electrically connected to a controller (604), and the controller (604) having an adjustable intermittent inflation mode setting function.

9. The lithotomy leg support with deep vein thrombosis prevention function according to claim 8, characterized in that: The controller (604) is provided with a display screen (605) for displaying the inflation pressure, inflation cycle and inflation time.

10. The lithotomy leg support with deep vein thrombosis prevention function according to claim 9, characterized in that: It also includes a lower limb thermal insulation and temperature control device, which includes a heating element (701) embedded in the carrier (304), the heating element (701) is electrically connected to a temperature controller (702), and the temperature controller (702) is arranged on the surface of the carrier (304).

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