Surgical leg nursing bracket capable of being adjusted in diversified mode and using method
By designing a servo motor-driven transmission assembly and an electric push rod rotation mechanism, the surgical leg care bracket can be automatically unfolded and adjusted, solving the problem that existing brackets require manual adjustment and improving ease of use and nursing efficiency.
Patent Information
- Application Number
- CN202511693323.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-01-02
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing surgical leg support brackets are inconvenient to use, requiring manual adjustment before and after each use. This is time-consuming, laborious, and can easily disturb the patient's rest. They are particularly inefficient and pose a risk of collision, especially in emergency care scenarios.
A versatile adjustable surgical leg support was designed. The leg support is automatically unfolded and retracted by a servo motor-driven transmission component. Combined with an electric push rod and a rotating mechanism, the direction and spacing of the leg support can be adjusted, simplifying the operation process.
The automatic adjustment of the bracket improves ease of use, reduces disturbance to patient rest, is suitable for emergency care scenarios, and enhances care efficiency.
Smart Images

Figure CN121242893A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of leg care bracket technology, specifically a surgical leg care bracket with adjustable features and its usage method. Background Technology
[0002] Surgical leg supports are assistive devices specifically designed for lower limb medical care. They typically consist of a high-strength frame, an adjustable support plate, and a fixation device. Their core applications cover orthopedic surgery (such as fracture fixation and joint replacement), lower limb rehabilitation training (such as muscle atrophy recovery and joint range of motion training), trauma care (such as postoperative wound exposure and dressing support), and chronic disease management (such as limb support for patients with nerve damage and leg elevation for patients with thrombosis). By precisely adjusting the support, it can be adapted to patients of different body types, providing stable support while reducing the risk of local compression, improving the accuracy of surgical procedures and patient comfort. It is an important tool for optimizing body positioning and accelerating the recovery process in modern surgical treatment.
[0003] Existing surgical leg support brackets are very inconvenient to use. Medical staff need to manually move and adjust the brackets before and after each use, which is time-consuming, laborious, and can easily disturb the patient's rest. They are especially inefficient in emergency care scenarios and even pose a risk of collision, affecting care efficiency and patient experience. Summary of the Invention
[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a surgical leg care bracket with diversified adjustment and a method of use, which effectively solves the problems of the existing surgical leg care brackets in the background art being very inconvenient to use. Before and after each use, medical staff need to manually move and adjust the bracket, which is time-consuming, laborious, and easily disturbs the patient's rest, and even poses a risk of collision.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a surgical leg care support with adjustable dimensions and a method of use, comprising a base, a protective shell fixedly installed on the upper part of the base, a movable frame provided on the top of the base, an equipment box provided on the top of the movable frame, an expansion mechanism provided inside the equipment box, and leg supports provided at both ends of the equipment box. The expansion mechanism is connected to the two leg supports to adjust the distance between the two leg supports. A servo motor is fixedly installed on one side of the top of the base via a support base. A transmission component is provided at the output end of the servo motor. The transmission component is connected to the movable frame and the equipment box. When the servo motor is running, it drives the movable frame to move horizontally through the transmission component and moves the equipment box upward, so that the two leg supports can extend from under the bed.
[0006] A slide bar is fixedly installed at the lower front end of the mobile frame. A slide groove is opened inside the base. The slide bar is movably inserted into the slide groove. Limit blocks are fixedly installed on both sides of the bottom of the mobile frame. Limit grooves are opened on both sides of the upper surface of the base. The two limit blocks are slidably installed inside the two limit grooves.
[0007] Preferably, the extension mechanism includes two electric push rods fixedly installed opposite to each other inside the equipment box, and support arms are movably inserted at both ends inside the equipment box. The ends of the two support arms that are far apart from each other are fixedly connected to the two leg supports, and the transmission ends of the two electric push rods are fixedly connected to the ends of the two support arms that are close to each other.
[0008] Preferably, the transmission assembly includes a drive gear fixedly installed at the output end of the servo motor. One side of the drive gear is rotatably connected to the base via a positioning seat. The upper surface of the moving frame is provided with a tooth groove, and the drive gear is meshed with the moving frame through the tooth groove.
[0009] Preferably, a shaft is rotatably mounted on one end of the upper side of the movable frame via two bearing seats, and a first sprocket is fixedly mounted on both ends of the shaft. A toothed column is fixedly mounted on the side of the two first sprockets that are far apart from each other. A rack is fixedly mounted on both sides of the upper part of the movable frame, and the two racks are adapted to the two toothed columns.
[0010] Preferably, the movable frame is provided with second sprockets on both sides of the end away from the shaft, and chains are respectively meshed between the two second sprockets and the two first sprockets. A rotating shaft is fixedly installed between the two second sprockets on the side that is close to each other, and the rotating shaft is rotatably connected to the movable frame through two bearings.
[0011] Preferably, a driving bevel gear is fixedly installed in the middle of the surface of the rotating shaft, a driven bevel gear is meshed with the upper part of the surface of the driving bevel gear, a rotating rod is fixedly installed on the top of the driven bevel gear, and the surface of the rotating rod is rotatably connected to the inside of the moving frame through a bushing.
[0012] Preferably, a lead screw is fixedly installed on the top of the rotating rod, and the top of the lead screw is rotatably connected to the inner top of the movable frame. A threaded sleeve is threaded onto the surface of the lead screw, and a movable platform is fixedly installed on one side of the threaded sleeve. A plug rod is movably inserted into the middle of the movable platform, and both ends of the plug rod are fixedly connected to the movable frame through fixing blocks. A rotating mechanism is provided at the upper end of the movable platform, and the rotating mechanism can drive the two leg supports to rotate and adjust the direction through the equipment box.
[0013] Preferably, the rotating structure includes a mounting groove formed on the top of the support column, and a sleeve is movably fitted on the upper end of the support column. A drive motor is fixedly installed inside the mounting groove, and the output end of the drive motor is fixedly connected to the sleeve. An annular groove is formed on the inner wall of the sleeve, and a slip ring is formed on the surface of the upper end of the support column. The slip ring is slidably installed inside the annular groove.
[0014] A method for using a surgical leg care brace with adjustable features, characterized by the following steps:
[0015] Step 1: The operator starts the servo motor to drive the drive gear to rotate. The drive gear drives the moving frame to move horizontally through the tooth groove. When the moving frame moves, it drives the slide bar to slide inside the slide groove, and at the same time drives the two limit blocks to slide inside the two limit grooves, thereby increasing the stability of the moving frame when it moves. When the moving frame moves, it can be moved to the side of the patient's bed through the equipment box and the two leg supports.
[0016] Step 2: After the moving frame moves a certain distance, the two toothed columns will mesh with the two racks. During the continuous movement of the moving frame, the two toothed columns will rotate. When the two toothed columns rotate, they will drive the two first sprockets to rotate. When the first sprockets rotate, they will drive the second sprockets to rotate through the chain. When the second sprockets rotate, they will drive the driving bevel gear to rotate through the shaft. When the driving bevel gear rotates, it will drive the rotating rod to rotate through the driven bevel gear. The rotating rod will drive the screw sleeve to move upward through the lead screw.
[0017] When the threaded sleeve moves upward, it drives the support column to move upward via the moving platform. When the moving platform moves upward, it slides along the surface of the insertion rod, which increases the stability of the moving platform and the support column when they move. When the support column moves upward, it drives the two leg supports to move upward to the support height via the equipment box. This allows the two leg supports to be stored under the bed when not in use and to extend automatically when in use, improving the convenience of use.
[0018] Step 3: Start the drive motor to rotate the sleeve as needed. When the sleeve rotates, it causes the slip ring to slide inside the ring groove, which increases the stability of the sleeve rotation. When the sleeve rotates, it drives the two leg supports to rotate and adjust the direction through the equipment box, so that the patient can place both legs in the two leg supports without moving their body position.
[0019] Step 4: Activate the two electric push rods as needed to push the two support arms to move backwards. When the two support arms move backwards, they push the two leg supports to move backwards to increase the distance, so that they can be adjusted to suit patients of different body types.
[0020] Compared with the prior art, the beneficial effects of the present invention are:
[0021] (1) During operation, the transmission components can drive the mobile frame to move horizontally, so that the mobile frame can move the two leg supports to the side of the hospital bed. Then, during the continuous operation of the transmission components, the two leg supports will be moved upward, so as to support the two legs of the patient sitting on the hospital bed. This allows the bracket to be automatically adjusted before and after use without the need for moving or adjusting. It is very convenient to use and will not disturb the patient's rest. It is suitable for use in emergency nursing scenarios.
[0022] (2) The device box can be driven to rotate by the drive motor. When the device box rotates, it can drive the two leg supports to rotate and adjust the direction, so that the patient can place his / her legs in the two leg supports without moving his / her body position.
[0023] (3) The two leg supports can be pushed outward by two electric push rods to expand the distance, so as to adapt to patients of different body types; through automatic extension and retraction, rotation adjustment and distance adjustment, this bracket has diversified adjustment capabilities, which is convenient for patients to use. Attached Figure Description
[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.
[0025] In the attached diagram:
[0026] Figure 1 This is a schematic diagram of the adjustable surgical leg support structure of the present invention. Figure 1 ;
[0027] Figure 2 This is a schematic diagram of the adjustable surgical leg support structure of the present invention. Figure 2 ;
[0028] Figure 3 This is a schematic diagram of the internal structure of the device box of the present invention;
[0029] Figure 4 This is a schematic diagram of the internal structure of the protective shell of the present invention;
[0030] Figure 5 This is a schematic diagram of the internal structure of the support column of the present invention;
[0031] Figure 6 This is a schematic diagram of the internal structure of the base and the movable frame of the present invention;
[0032] Figure 7 This is a schematic diagram of the limiting block and limiting groove structure of the present invention;
[0033] Figure 8 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;
[0034] In the diagram: 1. Base; 2. Protective shell; 3. Moving frame; 4. Equipment box; 5. Leg support; 6. Support base; 7. Servo motor; 8. Sliding bar; 9. Slide groove; 10. Mounting groove; 11. Drive motor; 12. Sleeve; 13. Slip ring; 14. Ring groove; 15. Limiting groove; 16. Electric push rod; 17. Support arm; 18. Drive gear; 19. Positioning seat; 20. Gear groove; 21. Shaft; 22. Shaft seat; 23. First sprocket; 24. Gear column; 25. Rack; 26. Second sprocket; 27. Chain; 28. Rotating shaft; 29. Bearing; 30. Driving bevel gear; 31. Driven bevel gear; 32. Lead screw; 33. Lead sleeve; 34. Moving table; 35. Insert rod; 36. Support column; 37. Limiting block; 38. Bushing; 39. Rotating rod. Detailed Implementation
[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0036] Example 1, by Figures 1 to 8 The present invention includes an L-shaped base 1 for installation under the patient's bed. A protective shell 2 is fixedly installed on the upper part of the base 1 to protect the transmission components. A movable frame 3 is provided on the top of the base 1, and an equipment box 4 is provided on the top of the movable frame 3. An expansion mechanism is provided inside the equipment box 4. Leg supports 5 are provided at both ends of the equipment box 4 to support the patient's legs. The expansion mechanism is connected to the two leg supports 5 to adjust the distance between the two leg supports 5 for use by patients of different body types. A servo motor 7 is fixedly installed on one side of the top of the base 1 through a support seat 6. The servo motor 7 can output rotational power with precision and stability. A transmission component is provided at the output end of the servo motor 7. The transmission component is connected to the movable frame 3 and the equipment box 4. When the servo motor 7 is running, it drives the movable frame 3 to move horizontally through the transmission component and moves the equipment box 4 upward, so that the two leg supports 5 can extend from under the bed to achieve rapid unfolding of the two leg supports 5.
[0037] A slider 8 is fixedly installed at the lower front end of the movable frame 3. A groove 9 is opened inside the base 1. The slider 8 is movably inserted into the groove 9, so that the slider 8 can slide inside the groove 9 to limit the movement trajectory of the movable frame 3. Limiting blocks 37 are fixedly installed on both sides of the bottom of the movable frame 3. Limiting grooves 15 are opened on both sides of the upper surface of the base 1. The two limiting blocks 37 are slidably installed inside the two limiting grooves 15, so that the two limiting blocks 37 can move within the two limiting grooves 15 to limit the movement trajectory of the movable frame 3.
[0038] When in use, the operator starts the servo motor 7 to drive the transmission component to rotate. When the transmission component rotates, it drives the moving frame 3 to move horizontally. When the moving frame 3 moves, it drives the slide bar 8 to slide inside the slide groove 9, and at the same time drives the two limit blocks 37 to slide inside the two limit grooves 15, thereby increasing the stability of the moving frame 3 when it moves. When the moving frame 3 moves, it can be moved to the side of the patient's bed through the equipment box 4 and the two leg supports 5.
[0039] During the operation of the transmission component, the two leg supports 5 are moved up to the support height through the equipment box 4; thus, the two leg supports 5 can be stored under the bed when not in use, and can be automatically extended when in use, improving the convenience of use.
[0040] The rotating structure includes a mounting groove 10 on the top of the support column 36, and a sleeve 12 is movably fitted on the upper end of the support column 36, so that the sleeve 12 can rotate on the upper end of the support column 36. A drive motor 11 is fixedly installed inside the mounting groove 10, and the output end of the drive motor 11 is fixedly connected to the sleeve 12, so that the drive motor 11 can drive the sleeve 12 to rotate. An annular groove 14 is provided on the inner wall of the sleeve 12, and a slip ring 13 is provided on the surface of the upper end of the support column 36. The slip ring 13 is slidably installed inside the annular groove 14, so that the slip ring 13 can rotate and slide within the annular groove 14 to achieve rotational positioning of the sleeve 12.
[0041] The drive motor 11 is activated as needed to rotate the sleeve 12. When the sleeve 12 rotates, it causes the slip ring 13 to slide inside the ring groove 14, which increases the stability of the sleeve 12 when it rotates. When the sleeve 12 rotates, it drives the two leg supports 5 to rotate and adjust their direction through the device box 4, so that the patient can place their legs in the two leg supports 5 without moving their body position.
[0042] In Embodiment 2, based on Embodiment 1, the transmission assembly includes a drive gear 18 fixedly installed at the output end of the servo motor 7. One side of the drive gear 18 is rotatably connected to the base 1 via a positioning seat 19, so that the drive gear 18 can rotate along the positioning seat 19 to ensure the stability of the drive gear 18's rotational drive. The upper surface of the moving frame 3 is provided with a toothed groove 20, and the drive gear 18 is meshed with the moving frame 3 through the toothed groove 20, so that the drive gear 18 can drive the moving frame 3 to translate through the toothed groove 20.
[0043] A shaft 21 is rotatably mounted on one end of the upper side of the movable frame 3 via two bearing seats 22. The two bearing seats 22 can rotate and position the shaft 21. A first sprocket 23 is fixedly mounted on both ends of the shaft 21. A toothed column 24 is fixedly mounted on the side of the two first sprockets 23 that are far apart from each other. A rack 25 is fixedly mounted on both sides of the upper part of the movable frame 3. The two racks 25 are adapted to the two toothed columns 24 so that the two can mesh precisely.
[0044] The operator starts the servo motor 7 to drive the drive gear 18 to rotate. The drive gear 18 drives the moving frame 3 to move horizontally through the tooth groove 20. When the moving frame 3 moves, it can be moved to the side of the patient's bed through the equipment box 4 and the two leg supports 5. After the moving frame 3 moves a certain distance, the two toothed columns 24 will mesh with the two toothed racks 25. During the continuous movement of the moving frame 3, the two toothed columns 24 will rotate.
[0045] The movable frame 3 is provided with two second sprockets 26 on both sides away from the shaft 21. The two second sprockets 26 and the two first sprockets 23 are respectively connected by chains 27. The two chains 27 can output the power of the two first sprockets 23 to the two second sprockets 26. A rotating shaft 28 is fixedly installed between the two second sprockets 26 on the side that are close to each other. The rotating shaft 28 is rotatably connected to the movable frame 3 through two bearings 29. The two bearings 29 can rotate and position the rotating shaft 28.
[0046] A drive bevel gear 30 is fixedly installed in the middle of the surface of the rotating shaft 28. A driven bevel gear 31 is meshed with the upper part of the surface of the drive bevel gear 30. The cooperation between the driven bevel gear 31 and the drive bevel gear 30 can change the direction of rotational transmission. A rotating rod 39 is fixedly installed on the top of the driven bevel gear 31. The surface of the rotating rod 39 is rotatably connected to the inside of the moving frame 3 through a bushing 38. The bushing 38 can rotate and position the rotating rod 39.
[0047] A lead screw 32 is fixedly installed on the top of the rotating rod 39. The top of the lead screw 32 is rotatably connected to the inner top of the movable frame 3 to ensure the stability of the upper end when the lead screw 32 rotates. A threaded sleeve 33 is threadedly connected to the surface of the lead screw 32. Rotation of the lead screw 32 allows the threaded sleeve 33 to move on its surface. A movable platform 34 is fixedly installed on one side of the threaded sleeve 33. A plug rod 35 is movably inserted in the middle of the movable platform 34, allowing the movable platform 34 to slide along the surface of the plug rod 35 to limit the movement trajectory of the movable platform 34. Both ends of the plug rod 35 are fixedly connected to the movable frame 3 through fixing blocks. A rotating mechanism is provided at the upper end of the movable platform 34. The rotating mechanism can drive the two leg supports 5 to rotate and adjust their direction through the equipment box 4. The two leg supports 5 can be aligned without the patient moving, which is convenient for the patient to use.
[0048] When the two toothed sprockets 24 rotate, they drive the two first sprockets 23 to rotate. When the first sprockets 23 rotate, they drive the second sprockets 26 to rotate via the chain 27. When the second sprockets 26 rotate, they drive the driving bevel gear 30 to rotate via the rotating shaft 28. When the driving bevel gear 30 rotates, it drives the rotating rod 39 to rotate via the driven bevel gear 31. The rotating rod 39 drives the threaded sleeve 33 to move upward via the lead screw 32.
[0049] When the threaded sleeve 33 moves upward, it drives the support column 36 to move upward through the moving platform 34. When the moving platform 34 moves upward, it slides along the surface of the insertion rod 35, which increases the stability of the moving platform 34 and the support column 36 when they move. When the support column 36 moves upward, it drives the two leg supports 5 to move upward to the support height through the equipment box 4.
[0050] In Embodiment 3, based on Embodiment 1, the extended mechanism includes two electric push rods 16 fixedly installed inside the equipment box 4, and support arms 17 are movably inserted into both ends inside the equipment box 4, so that the two support arms 17 can move inside the equipment box 4. The ends of the two support arms 17 that are far apart from each other are fixedly connected to the two leg supports 5 respectively, and the transmission ends of the two electric push rods 16 are fixedly connected to the ends of the two support arms 17 that are close to each other, so that the two electric push rods 16 can push the two leg supports 5 to move backward through the two support arms 17.
[0051] As needed, two electric push rods 16 are activated to push two support arms 17 to move in opposite directions. When the two support arms 17 move in opposite directions, they push two leg supports 5 to move in opposite directions to increase the distance.
Claims
1. A versatilely adjustable surgical leg care cradle comprising a base (1), characterized in that: The upper part of the base (1) is fixedly installed with a protective shell (2), the top of the base (1) is provided with a moving frame (3), the top of the moving frame (3) is provided with a device box (4), the inside of the device box (4) is provided with an expansion mechanism, both ends of the device box (4) are provided with leg supports (5), the expansion mechanism is connected with the two leg supports (5) to adjust the spacing of the two leg supports (5), one side of the top of the base (1) is fixedly installed with a servo motor (7) through a support seat (6), the output end of the servo motor (7) is provided with a transmission assembly, the transmission assembly is in transmission connection with the moving frame (3) and the device box (4), and the servo motor (7) drives the moving frame (3) to translate through the transmission assembly when it operates, and the device box (4) is moved upward, so that the two leg supports (5) can be stretched out from the bottom of the bed; The lower part of the front end of the moving frame (3) is fixedly installed with a sliding bar (8), the inside of the base (1) is provided with a sliding groove (9), the sliding bar (8) is movably inserted into the inside of the sliding groove (9), and the two sides of the bottom of the moving frame (3) are fixedly installed with limit blocks (37), the two sides of the upper surface of the base (1) are provided with limit grooves (15), and the two limit blocks (37) are slidably installed in the inside of the two limit grooves (15).
2. A versatile adjustable surgical leg care cradle as claimed in claim 1, wherein: The expansion mechanism comprises two electric push rods (16) fixedly installed in the inside of the device box (4), and support arms (17) are movably inserted into the two ends of the inside of the device box (4), one ends of the two support arms (17) away from each other are fixedly connected with the two leg supports (5) respectively, and transmission ends of the two electric push rods (16) are fixedly connected with one ends of the two support arms (17) close to each other.
3. A versatile adjustable surgical leg care cradle as defined in claim 1, wherein: The transmission assembly comprises a drive gear (18) fixedly installed at the output end of the servo motor (7), one side of the drive gear (18) is rotatably connected with the base (1) through a positioning seat (19), the upper surface of the moving frame (3) is provided with a gear slot (20), and the drive gear (18) is meshingly connected with the moving frame (3) through the gear slot (20).
4. A versatile adjustable surgical leg care cradle as defined in claim 3, characterized in that: One end of the upper side of the moving frame (3) is rotatably installed with a shaft rod (21) through two shaft seats (22), the two ends of the shaft rod (21) are fixedly installed with first sprockets (23), one sides of the two first sprockets (23) away from each other are fixedly installed with tooth columns (24), the two sides of the upper part of the moving frame (3) are fixedly installed with racks (25), and the two racks (25) are matched with the two tooth columns (24).
5. A versatile adjustable surgical leg care cradle as defined in claim 4, characterized in that: The two sides of the end of the moving frame (3) away from the shaft rod (21) are provided with second sprockets (26), chain belts (27) are respectively meshingly connected between the two second sprockets (26) and the two first sprockets (23), a rotating shaft (28) is fixedly installed between the two second sprockets (26) close to each other, and the rotating shaft (28) is rotatably connected with the moving frame (3) through two bearings (29).
6. A versatile adjustable surgical leg care cradle as defined in claim 5, characterized in that: The middle part of the surface of the rotating shaft (28) is fixedly installed with a driving bevel gear (30), the upper surface of the driving bevel gear (30) is meshedly connected with a driven bevel gear (31), the top of the driven bevel gear (31) is fixedly installed with a rotating rod (39), and the surface of the rotating rod (39) is rotatably connected with the inside of the moving frame (3) through a shaft sleeve (38).
7. A versatile adjustable surgical leg care cradle according to claim 6, characterized in that: The top of the rotating rod (39) is fixedly installed with a lead screw (32), the top of the lead screw (32) is rotatably connected with the inner top of the moving frame (3), the surface of the lead screw (32) is threadedly connected with a lead sleeve (33), one side of the lead sleeve (33) is fixedly installed with a moving table (34), the middle part of the moving table (34) is movably inserted with a plug rod (35), both ends of the plug rod (35) are fixedly connected with the moving frame (3) through fixing blocks, and the upper end of the moving table (34) is provided with a rotating mechanism, which can drive the two leg supports (5) to rotate and adjust the direction through the equipment box (4).
8. A versatile adjustable surgical leg care cradle according to claim 7, characterized in that: The rotating mechanism comprises a mounting groove (10) formed in the top of the supporting column (36), and the upper end of the supporting column (36) movably sleeves a sleeve (12), the inside of the mounting groove (10) is fixedly installed with a driving motor (11), the output end of the driving motor (11) is fixedly connected with the sleeve (12), the inner wall of the sleeve (12) is provided with an annular groove (14), and the surface of the upper end of the supporting column (36) is provided with a sliding ring (13), which is slidingly installed in the inside of the annular groove (14).
9. The method of claim 1, wherein the method further comprises: The steps are as follows: Step 1: the operator starts the servo motor (7) to drive the driving gear (18) to rotate, the driving gear (18) drives the moving frame (3) to translate through the gear groove (20), the moving frame (3) moves to drive the sliding bar (8) to slide in the inside of the sliding groove (9), and at the same time, the two limiting blocks (37) slide in the two limiting grooves (15), thereby increasing the stability of the moving frame (3) when moving, and the moving frame (3) can move to the side of the patient's bed through the equipment box (4) and the two leg supports (5). Step 2: after the moving frame (3) translates a distance, the two tooth columns (24) will be meshed with the two tooth bars (25), the two tooth columns (24) will rotate in the process of continuous movement of the moving frame (3), the two tooth columns (24) rotate to drive the two first sprockets (23) to rotate, the first sprockets (23) rotate to drive the second sprockets (26) to rotate through the chains (27), the second sprockets (26) rotate to drive the driving bevel gear (30) to rotate through the rotating shaft (28), the driving bevel gear (30) rotates to drive the rotating rod (39) to rotate through the driven bevel gear (31), and the rotating rod (39) drives the lead sleeve (33) to move up through the lead screw (32). When the silk cover (33) moves up, the support column (36) moves up through the moving table (34), and the moving table (34) slides along the surface of the insertion rod (35), thereby increasing the stability of the moving table (34) and the support column (36) when moving, and when the support column (36) moves up, the two leg supports (5) move up to the support height through the equipment box (4); thereby the two leg supports (5) can be stored in the bed bottom when not in use, and can automatically extend when in use, thereby improving the convenience of use. Step 3: Start the driving motor (11) according to the needs to drive the sleeve (12) to rotate, and when the sleeve (12) rotates, the slip ring (13) slides in the ring groove (14), thereby increasing the stability of the sleeve (12) when rotating, and when the sleeve (12) rotates, the two leg supports (5) are rotated and adjusted in direction through the equipment box (4), so that the patient can place both legs on the two leg supports (5) without moving the body position. Step 4: Start the two electric push rods (16) to push the two support arms (17) to move backward, and when the two support arms (17) move backward, the two leg supports (5) are pushed to move backward to increase the distance, so that they can be adjusted according to the body shape of the patient.