CN116570455A - A lower limb body position adjustment device - Google Patents

Abstract

The application relates to a lower limb position adjusting device, which relates to the technical field of medical equipment, and comprises a locking component, an adjusting component and a leg supporting plate capable of being fixed on an operating table, wherein the locking component is respectively connected with the leg supporting plate and the adjusting component, the locking component comprises a plug connector and a limiting piece, the plug connector is connected to the leg supporting plate and is clamped with the limiting piece, the adjusting component can drive the limiting piece to move so as to enable the plug connector and the limiting piece to be separated from the matching state, and then the position of the leg supporting plate can be adjusted.

Description

A lower limb body position adjustment device

technical field

The present application relates to the technical field of medical devices, in particular to a device for adjusting the body position of lower limbs.

Background technique

At present, in unicompartmental surgery, the doctor will place the position of the patient's calf and the knee flexion angle of the lower limb according to the different steps of the operation. Traditionally, it is necessary for an assistant of the chief surgeon to hold the legs and constantly place the knee bending angle according to the operation steps. The key point is that sometimes it is necessary to stay at an angle for a long time, which is a labor-intensive process.

In order to save manpower, there are also some leg supports on the market to assist this type of clinical operation. When using the legs, each plate of the leg support is adjusted to a suitable angle and the patient's lower limbs are placed on the leg support. Although this method It can reduce the labor intensity of doctors to a certain extent, but the various plates of the leg support are locked by threads. When entering different steps, it is necessary to unscrew the screws and re-align the various plates of the leg support Adjust to realize the adjustment of the position of the patient's calf and the angle of knee flexion of the lower limbs.

Contents of the invention

The purpose of this application is to provide a device that facilitates the adjustment of the position of the patient's calf and the angle of knee flexion of the lower limbs.

A lower limb body position adjustment device provided by the application adopts the following technical scheme:

A device for adjusting the body position of lower limbs, comprising a locking assembly, an adjusting assembly, and a leg support plate capable of being fixed on an operating bed, the locking assembly is respectively connected to the leg support plate and the adjustment assembly, and the locking assembly includes a plug-in piece and a limit piece, the plug-in piece is connected to the leg support plate and the plug-in piece is engaged with the limit piece, and the adjustment assembly can drive the limit piece to move to make the plug-in The disengagement between the part and the limiting part is used to adjust the position of the leg support plate.

By adopting the above-mentioned technical solution, the user can use the adjustment assembly to move the limiter, and the moved limiter and the connector are disengaged. When the position changes, the adjustment component is closed, and the limiter will return to the initial position and engage with the connector, so that the position of the leg support plate is locked. The user only needs to adjust the position of the leg support plate through the adjustment component. The position is adjusted, thereby changing the position of the patient's calf placed on the leg rest and the knee bending angle of the lower limbs, which reduces the labor intensity of the user and facilitates the operation.

Optionally, the leg support plate includes a first support plate, a second support plate and a third support plate, the second support plate is rotatably connected to the first support plate, and the third support plate is slidably connected to on the second support plate.

By adopting the above technical solution, the user can make the leg support plate more match the lower limbs of the patient by rotating the second support plate and sliding the third support plate, which is beneficial for the user to perform surgery on the patient better.

Optionally, the connector includes a ratchet and a ratchet plate, the ratchet is set on the first support plate, the ratchet plate is set on the second support plate, the ratchet is connected to one of the limiting The ratchet plate abuts against one of the limiting members, and the ratchet plate is fixedly connected to the second support plate.

By adopting the above technical solution, when the adjustment component drives the limiter to move, the limiter and the ratchet are disengaged from each other, and under the action of gravity of the patient's lower limbs, the second support plate rotates counterclockwise, and the third support plate moves toward Move away from the direction of the first support plate, when the second support plate and the third support plate move to the appropriate position, close the adjustment assembly, the position of the first support plate and the third support plate is locked, the operation is simple, and it is conducive to precision Adjust the position of the lower leg of the patient placed on the leg support board and the angle of knee flexion of the lower limb.

Optionally, the adjustment assembly includes a first pedal and a second pedal, the first pedal is connected to the second pedal, and the first pedal and the second pedal are connected to the Connecting parts are connected between the limiting parts, and both the first pedal and the second pedal drive the limiting parts to move through the connecting parts.

By adopting the above technical scheme, the user can adjust the positions of the second support plate and the third support plate only by stepping on the pedal, so that the user’s hands are freed, reducing the need for both hands to adjust the leg support plate with both hands. The possibility of bacterial infection caused by the attached bacteria reduces the labor intensity of the user and facilitates the operation of the user.

Optionally, a linkage plate is fixedly connected to the first pedal and the second pedal, and the two linkage plates abut against each other, and the linkage plate on the first pedal is set The upper end of the linkage plate on the second foot board.

By adopting the above technical solution, when stepping on the first pedal, under the effect of the linkage plate, the second pedal is also stepped on, so that the first pedal can simultaneously adjust the angle of the second support plate and the angle of the second support plate. The distance between the three support plates reduces the possibility of the calf being blocked by changing the knee-bending angle of the lower limbs alone, and the user can automatically adjust the position of the patient's calf and the knee-bending angle of the lower limbs only by stepping on the first pedal, saving manpower , to facilitate surgical operations.

The limiting member includes a limiting protrusion, an elastic element and a connecting plate, the two ends of the elastic element are respectively fixedly connected to the limiting protrusion and the connecting plate, and the connecting member is connected to the limiting protrusion block connections.

By adopting the above-mentioned technical scheme, stepping on the first pedal or the second pedal, the limiting protrusion moving downward in the first pedal or the second pedal pulls the connecting piece so that the stopper located on the limiting protrusion The limit projection inside also moves downward, and at this time the elastic element shrinks, and the limit projection no longer restricts the movement of the second support plate or the third support plate. When the first pedal or the second pedal is released, At this time, the elastic element rebounds so that the top of the limit protrusion abuts against the ratchet or the ratchet plate, and then locks the ratchet or the ratchet plate. locking.

Optionally, the leg support board is fixedly connected to the operating bed through a fixing frame, and the fixing frame includes a fixing rod, a first locking clip, a second locking clip and a third locking clip, and the first locking clip Both the clip and the second locking clip are sleeved on the fixing rod, the first locking clip is fixedly connected to the bottom end of the first support plate, the second locking clip is connected to the first The three locking clips are fixedly connected, and the third locking clip is used to fix the fixing frame on the operating bed.

By adopting the above technical scheme, the fixed rod is connected to the first support plate through the first locking clip, the fixed rod is connected to the operating bed through the third locking clip, and the second locking clip is adjusted according to the specific conditions of the patient's lower limbs The position on the fixing rod is conducive to improving the versatility of the fixing frame. After the operation is completed, the fixing frame can be removed from the first support plate, which is beneficial to the storage of the device.

Optionally, a plurality of position-limiting columns are arranged on the leg support plate, and a plurality of position-limiting holes are opened on the first support plate, the second support plate and the third support plate, and several position-limiting holes are provided on the support plate. The limiting holes are matched with some limiting posts.

By adopting the above technical scheme, according to the specific conditions of the patient's lower limbs, insert the limiting column into the limiting hole to limit the patient's lower limbs, which is conducive to reducing the possibility of the patient's lower limbs moving and interfering with the normal operation, and improving the safety of the operation and success rate.

Optionally, both sides of the third support plate are provided with lifting rods, and both ends of the lifting rods are bent toward the third support plate and are fixedly connected to the third support plate.

By adopting the above technical solution, the user can rotate the second support plate through the lifting rod so that the second support plate is on the same level as the first support plate and then slide the third support plate through the lifting rod, in this way to achieve different knee bends The angle is placed so that the device can realize the adjustment of the patient's knee bending angle in the suspended lower limb position and the ordinary supine position at the same time.

Optionally, a baffle is fixedly connected to the third support plate.

By adopting the above technical scheme, the baffle can support the sole of the patient's foot and further limit the position of the patient's sole, reducing the load on the patient to maintain the state of the sole of the patient. Under the combined action of the baffle and the leg support, the patient's The lower limbs handle the natural resting state, which is conducive to improving the patient's experience.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The first support plate, the second support plate and the third support plate in this application respectively support the thigh, calf and sole of the patient. The user only needs to step on the adjustment component to adjust the leg support plate. When the second pedal is used, the locking component is unlocked, and when the third support plate used to support the sole of the foot slides to a suitable position, the second pedal is released, and the locking component re-locks the third support plate, avoiding the need for manual operation by the user Readjust the possibility of contaminating the hands and thus infecting the patient.

2. The linkage plate in this application can make the second pedal also be stepped on when the first pedal is stepped on, so that the first pedal can simultaneously adjust the angle of the second support plate and the angle of the third support plate. This distance reduces the possibility of jamming the calf by changing the knee flexion angle of the lower body alone.

3. In the present application, the limiting protrusion moving downward in the first pedal or the second pedal pulls the connecting rope so that the limiting protrusion arranged in the limiting protrusion also moves downward, and the limiting protrusion The movement of the second support plate or the third support plate is no longer restricted. When the first pedal or the second pedal is released, the elastic element rebounds at this time so that the top of the limiting protrusion abuts against the ratchet or the ratchet. Furthermore, the locking of the ratchet or the ratchet plate is easy to operate, and is conducive to precise adjustment and state locking of the second support plate and the third support plate.

Description of drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a device for adjusting the body position of lower limbs in Embodiment 1 of the present application.

Fig. 2 is a schematic diagram of the exploded structure of the regulating assembly in Embodiment 1 of the present application.

Fig. 3 is a schematic diagram of the exploded structure of the ratchet and the first support plate in Embodiment 1 of the present application.

Fig. 4 is a schematic perspective view of the three-dimensional structure of the limiting member and the connecting rope in Embodiment 1 of the present application.

Fig. 5 is a partial structural schematic diagram of a device for adjusting the body position of lower limbs in Embodiment 1 of the present application.

FIG. 6 is a schematic perspective view of the mounting frame in Embodiment 1 of the present application.

Fig. 7 is a schematic diagram of the exploded structure of the regulating assembly in Embodiment 2 of the present application.

FIG. 8 is a schematic perspective view of the three-dimensional structure of the installation frame and the adjustment assembly in Example 3 of the present application.

FIG. 9 is a schematic perspective view of a lower limb body position adjustment device in Embodiment 4 of the present application.

In the figure, 1, leg support plate; 11, first support plate; 12, second support plate; 13, third support plate; 14, limit hole; 15, pull rod; 16, baffle plate; 2, locking assembly ;21, connector; 211, ratchet; 2111, card slot; 212, ratchet plate; , connecting plate; 23, installation box; 24, pin; 3, adjustment assembly; 31, first pedal; 32, second pedal; 33, linkage plate; 34, connector; 341, connecting rope; 342 , adjusting bump; 35, box body; 36, fixed frame; 37, anti-slip protrusion; 38, chute; 39, third pedal; 4, rotating shaft; 5, slide rail; 6, fixed frame; 61, fixed Rod; 611, groove; 612, clamping groove; 62, first locking clip; 63, second locking clip; 64, third locking clip; 65, adjustment box; 7, limit post; 8, Pretension belt; 81, belt body; 82, connecting column.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1 to 9 .

Example 1:

A lower limb body position adjustment device, referring to Fig. 1, includes a leg support plate 1 fixed on an operating bed, a locking assembly 2 and an adjustment assembly 3, the locking assembly 2 is respectively connected with the leg support plate 1 and the adjustment assembly 3, and the leg support plate 1 includes The first support plate 11, the second support plate 12 and the third support plate 13, the second support plate 12 is rotatably connected to the first support plate 11 through the rotating shaft 4, and the third support plate 13 is slidably connected to the second support plate 12 .

With reference to Fig. 1, on the first support plate 11, the second support plate 12 and the third support plate 13, several limit posts 7 are all arranged on the first support plate 11, the second support plate 12 and the third support plate 13. All are provided with some limit holes 14 matched with limit posts 7, as the preferred mode of the real-time example of the present application, the quantity of limit posts 7 in the present embodiment 1 is 4, and 4 limit posts 7 take 2 as One group is divided into two groups, one group is arranged on the second support plate 12, and the other group is arranged on the third support plate 13, to limit the lower limbs of the patient, and the third support plate 13 also A baffle 16 is fixedly connected to further limit the lower limbs of the patient.

1 and 2, the adjustment assembly 3 includes a first foot pedal 31 and a second foot pedal 32, the bottom ends of the first foot pedal 31 and the second foot pedal 32 are connected to the box through a rotating rod. 35. The two box bodies 35 are detachably connected to the fixed frame 36 through pins, and the tops of the first pedal 31 and the second pedal 32 are fixedly connected with some anti-slip protrusions 37 to reduce the user's stepping on. The possibility of slipping when moving the first pedal 31 or the second pedal 32 is beneficial to improving the safety of the adjustment assembly 3 .

Referring to Fig. 1 and Fig. 2, the first pedal 31 is used for adjusting the angle of the second support plate 12 and the distance of the third support plate 13 simultaneously, and the second pedal 32 is used for adjusting the distance of the third support plate 13, Both the first pedal 31 and the second pedal 32 are fixedly connected with a linkage plate 33, and the two linkage plates 33 are in contact with each other, and the linkage plate 33 on the first pedal 31 is higher than that on the second pedal 32. When stepping on the first pedal 31, the linkage plate 33 on the first pedal 31 drives the linkage plate 33 on the second pedal 32 to rotate so that the second pedal 32 also Rotate, by stepping on the first pedal 31 and the second pedal 32, the second support plate 12 is rotated and the third support plate 13 is slid, so as to adjust the position of the patient's calf and the knee bending angle of Xiaozhi.

Referring to Fig. 1, both sides of the third supporting plate 13 are provided with lifting rods 15, and the two ends of the lifting rods 15 are bent toward the direction close to the third supporting plate 13 and fixedly connected with the third supporting plate 13, the user can lift the The pull rod 15 rotates the second support plate 12 so that the second support plate 12 is on the same level as the first support plate 11 and then slides the third support plate 13 through the pull rod 15. In this way, different knee bending angles can be placed, so that The device can simultaneously realize the adjustment of the patient's knee bending angle in the suspended lower limb position and the common supine position.

3 and 4, the locking assembly 2 includes a plug 21 and a stopper 22. With reference to FIG. 5, the plug 21 includes a ratchet 211 and a ratchet 212. The ratchet 211 is set on the first support plate 11, the ratchet plate 212 is set on the second support plate 12, the ratchet plate 212 abuts with a limiter 22, and the limiter 22 abutted with the ratchet plate 212 The end cover is provided with an installation box 23, and the installation box 23 is fixedly connected to the third support plate 13. As a preferred mode of the embodiment of the present application, the ratchet plate 212 in this embodiment 1 is fixedly connected to the second support plate 12 and located on the The lower side of the slide rail 5; the ratchet 211 abuts against a stopper 22, the ratchet 211 is arranged in the first support plate 11 and is sleeved on the rotating shaft 4 by a screw, and a mounting pad is arranged between the screw and the ratchet 211 to The ratchet 211 is more firmly fixed on the rotating shaft 4 . The ratchet 211 is provided with a slot 2111 that engages with the rotating shaft 4 .

Referring to Fig. 2 and Fig. 4, the limiting member 22 comprises a limiting protrusion 221, an elastic element 222 and a connecting plate 223, and the two ends of the elastic element 222 are respectively fixedly connected with the limiting protrusion 221 and the connecting plate 223, and the limiting protrusion 221 includes a stop convex 2211 and a connecting block 2212, the stop convex 2211 and the connection block 2212 are fixedly connected, and the top of the stop convex 2211 is inclined at a certain angle to make the stop convex 2211 match with the tooth grooves on the ratchet 211 and the ratchet plate 212 respectively; the first pedal A connecting piece 34 is connected between the board 31 , the second pedal 32 and the limiting member 22 , and the first pedal 31 and the second pedal 32 drive the limiting member 22 to move through the connecting piece 34 . As a preferred mode of the embodiment of the present application, the connector 34 in the first embodiment includes a connecting rope 341 and an adjusting lug 342 fixedly connected to both ends of the connecting rope 341, and both ends of the connecting rope 341 are fixedly connected with an adjusting lug 342. Two adjustment projections 342 on a connecting rope 341 connected with the first pedal 31 are respectively arranged in one of the connecting blocks 2212 and the first pedal 31, and a connecting rope connected with the second pedal 32 The connection protrusions on the 341 are respectively arranged in another connection block 2212 and the second pedal 32 .

Referring to Fig. 6, the leg support board 1 is fixedly connected on the operating bed through a fixed frame 6, and the fixed frame 6 includes a fixed rod 61, a first locking clip 62, a second locking clip 63 and a third locking clip 64, the first locking clip Both the clamp 62 and the second clamp 63 are sleeved on the fixed rod 61, the first clamp 62 is fixedly connected to the bottom end of the first support plate 11, the second clamp 63 and the third clamp 64 Fixedly connected, the third locking clip 64 is used to fix the fixed frame 6 on the operating bed, and the end of the fixed rod 61 close to the first support plate 11 is bent along the width direction of the first support plate 11 and has a groove 611, so as to To be better fixed on the first support plate 11 , the first locking clip 62 , the second locking clip 63 and the third locking clip 64 are all provided with rotating jack rods and locked by threads through the rotating jack rods.

The implementation principle of the embodiment of the present application is: the first pedal 31 will be stepped on through the installation frame, and under the action of the linkage plate 33, the second pedal 32 will also rotate thereupon, and the first pedal 31 and the second pedal will rotate accordingly. The connecting rope 341 connected by the two foot pedals 32 moves, and the adjustment projection 342 on the connecting rope 341 drives the connecting block 2212 to move so that the retaining protrusion 2211 is disengaged from the tooth groove on the ratchet 211 and the ratchet plate 212. At this time, the second support plate 12 Turning counterclockwise, the third support plate 13 also slides away from the first support plate 11, and when the first pedal 31 is released, the connecting rope 341 and the elastic element 222 return to the initial state, so that the blocking protrusion 2211 extends into the The ratchet wheel 211 and the ratchet plate 212 are locked in the tooth grooves on the ratchet wheel 211 and the ratchet plate 212, so that the second support plate 12 and the third support plate 13 maintain the locked state. The plate 31 can simultaneously adjust the position of the patient's calf and the knee-bending angle of the lower limbs, which saves manpower and facilitates the operation.

Example 2:

Referring to Fig. 7, the difference between the present embodiment 2 and the embodiment 1 is that the first pedal 31 and the second pedal 32 are provided with chute 38, and a linkage plate 33 is slidably connected to the first pedal 38 through the chute 38. On the pedal 31 , a linkage plate 33 is slidably connected to the second pedal 32 through a slide groove 38 .

The implementation principle of the embodiment of the present application is: slide the linkage plate 33, so that the two linkage plates 33 are staggered from each other. At this time, the first foot pedal 31 is used to control the rotation of the second support plate 12 to adjust the knee flexion angle of the patient's lower limbs. Adjustment, the second foot pedal 32 is used to control the sliding of the third support plate 13 to adjust the position of the patient's calf, the sliding linkage plate 33 makes the two linkage plates 33 contact again, and the first foot pedal 31 can again Simultaneously controlling the rotation of the second support plate 12 and the sliding of the third support plate 13 can be applied to patients with special lower limbs, and has wider versatility and stronger applicability.

Embodiment 3: Referring to FIG. 8 , the difference between Embodiment 3 and Embodiment 1 is that the adjustment assembly 3 further includes a third pedal 39 , the fixed frame 6 further includes an adjustment box 65 , the adjustment box 65 and the third locking clip 64 Fixedly connected, the fixed rod 61 is provided with a clamping groove 612, and the inner wall of the clamping groove 612 is fixedly connected with a ratchet plate 212, and the ratchet plate 212 abuts against the limiter 22, and the limiter 22 is arranged in the adjustment box 65, limiting The position member 22 and the third pedal 39 are connected by a connecting rope 341 .

The implementation principle of the embodiment of the present application is: the position of the fixed frame 6 is locked by the limiter 22, and the connecting rope 341 is pulled by stepping on the third pedal 39 to make the adjustment protrusion 342 on the connecting rope 341 drive the connecting block 2212 to move to block The protrusion 2211 disengages from the cog on the ratchet 211, and now the fixed rod 61 moves downward. When the third pedal 39 is released, the connecting rope 341 and the elastic element 222 return to the initial state, so that the retaining protrusion 2211 is stretched into the ratchet plate again. The ratchet plate 212 in the alveolar 212 is locked, and the user can adjust the height of the patient's lower limbs only by stepping on the third pedal 39, which saves manpower and is convenient for operation.

Example 4:

Referring to Fig. 9, the difference between Embodiment 4 and Embodiment 1 is that there are several pre-tightening belts 8 provided on the leg support plate 1, and the pre-tightening belts 8 include a belt body 81 and connecting columns 82 connected to both ends of the belt body 81, The connecting column 82 is set in the limiting hole 14. As a preferred mode of the embodiment of the present application, the number of the pre-tightening bands 8 in this embodiment 4 is two, one of which is set on the second support plate 12, and the other is pre-tensioned. The tightening strap 8 is arranged on the third support plate 13 .

The implementation principle of the embodiment of the present application is: place the patient's lower limbs on the adjustment device and limit the position of the patient's lower limbs through the pretension belt 8. The pretension belt 8 can not only limit the left and right movement of the patient's lower limbs, but also limit the The patient's lower limbs move up and down, which is beneficial to reduce the possibility of the patient's lower limb movement interfering with the normal operation.

The embodiments of this specific embodiment are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly, wherein the same components are represented by the same reference numerals. Therefore: all equivalent changes made according to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims (10)

1. A body position adjustment device for lower limbs, characterized in that it includes a locking component (2), an adjusting component (3) and a leg support plate (1) that can be fixed on the operating bed, the locking component (2) is connected to the The leg support plate (1) is connected to the adjustment assembly (3), the locking assembly (2) includes a plug (21) and a limiter (22), and the plug (21) is connected to the on the leg support plate (1) and the plug connector (21) is engaged with the stopper (22), and the adjustment component (3) can drive the stopper (22) to move the plug The connecting piece (21) and the limiting piece (22) are disengaged to adjust the position of the leg support plate (1). 2. A lower limb position adjustment device according to claim 1, characterized in that the leg support board (1) comprises a first support board (11), a second support board (12) and a third support board ( 13), the second support plate (12) is rotatably connected to the first support plate (11), and the third support plate (13) is slidably connected to the second support plate (12). 3. A lower limb body position adjustment device according to claim 2, characterized in that: The connector (21) includes a ratchet (211) and a ratchet plate (212), the ratchet (211) is set on the first support plate (11), and the ratchet plate (212) is set on the On the second support plate (12), the ratchet (211) abuts against one of the limiting members (22), the ratchet plate (212) abuts against one of the limiting members (22), and the The ratchet plate (212) is fixedly connected to the second support plate (12). 4. The device for adjusting the body position of lower limbs according to claim 1, characterized in that, the adjustment assembly (3) includes a first foot pedal (31) and a second foot pedal (32), the first foot pedal (32) The pedal (31) is connected to the second pedal (32), and there are connecting pieces between the first pedal (31) and the second pedal (32) and the limiter (22) (34), the first pedal (31) and the second pedal (32) drive the limiter (22) to move through the connecting piece (34). 5. A device for adjusting the body position of lower limbs according to claim 4, characterized in that a linkage plate (33) is fixedly connected to the first pedal (31) and the second pedal (32) ), the two linkage plates (33) are in contact, and the linkage plate (33) on the first pedal (31) is set on the linkage plate (33) on the second pedal (32) The upper end of the plate (33). 6. The device for adjusting the body position of lower limbs according to claim 4, characterized in that, the limiting member (22) comprises a limiting protrusion (221), an elastic element (222) and a connecting plate (223), the Both ends of the elastic element (222) are respectively fixedly connected to the limiting protrusion (221) and the connecting plate (223), and the connecting piece (34) is connected to the limiting protrusion (221). 7. A device for adjusting the body position of lower limbs according to claim 2, characterized in that, the fixing frame (6) includes a fixing rod (61), a first locking clip (62), a second locking clip (63 ) and the third locking clip (64), the fixing frame (6) is used to fix the leg support plate (1), the first locking clip (62) and the second locking clip (63 ) are sleeved on the fixed rod (61), the first locking clip (62) is fixedly connected to the bottom end of the first support plate (11), and the second locking clip (63) It is fixedly connected with the third locking clip (64). 8. The device for adjusting the body position of lower limbs according to claim 2, characterized in that, the leg support plate (1) is provided with several limit columns (7), the first support plate (11), Both the second supporting plate (12) and the third supporting plate (13) are provided with a plurality of limiting holes (14), and the plurality of limiting holes (14) are matched with a plurality of limiting columns (7). 9. The device for adjusting the body position of lower limbs according to claim 2, characterized in that, both sides of the third support plate (13) are provided with lifting rods (15), and the two sides of the lifting rod (15) The end is bent toward the direction close to the third support plate (13) and fixedly connected with the third support plate (13). 10 . The device for adjusting the body position of lower limbs according to claim 9 , characterized in that, a baffle ( 16 ) is fixedly connected to the third support plate ( 13 ). 11 .