CN211584104U - Lower limb fracture rehabilitation exercise device - Google Patents

Abstract

The utility model discloses a low limbs fracture is strong and is taken exercise device again, wherein the seat front end of seat body establishes the flat board, and removal push pedal structure is established to dull and stereotyped one end, establishes servo motor and speed reducer in the promotion box, and the gear is established at the axostylus axostyle both ends, establish on the flat board with gear complex rack, establish pressure sensor I in the push pedal, pressure sensor I, speed reducer and servo motor communicate with the PLC controller respectively. The utility model is convenient for the patient to do rehabilitation with sitting posture, the leg and the trunk of the patient are right-angled by the backrest and the seat, when the force is applied to the front side of the foot bottom or the knee, the relative force can be generated at the crotch, and when the push plate reaches the force required by rehabilitation, the effect of rehabilitation of the leg of the patient can be achieved; the pressure sensor transmits the data of the pressure applied to the foot sole or the knee of the patient to the PLC controller, so that the PLC controller controls the opening and closing and the forward and reverse movement of the servo motor and the speed reducer, namely, the motion direction of the push plate, the times of applying pressure to the foot sole or the knee of the patient and the pressure are controlled according to the PLC.

Description

Lower limb fracture rehabilitation exercise device

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to low limbs fracture is strong and is taken exercise device again.

Background

The lower limb fracture comprises fracture of femur, tibia and fibula, and can be subdivided into proximal femur fracture according to different parts. Femoral neck, intertrochanteric femoral, proximal femoral middle section, lower femoral section, intercondylar femoral, medial condyle, lateral condyle fracture, tibial plateau, middle tibial section, lower tibial section, distal tibial end, pilot fracture, medial ankle fracture, proximal fibula section, middle fibula section, distal fibula section, and lateral condyle fracture. After fracture, no matter whether operation treatment is performed or not, the fracture healing process is in accordance with the rule: 1. hematoma formation. 2. Fibrous callus formation. 3. Bony callus formation. 4. Rebuilding or remolding of stock prices. The standard that fractures do not achieve complete healing within the time required for normal healing is called delayed healing. And a fracture in which both ends of the fracture do not reach bony union after eight months is called nonunion or nonunion. Proper reduction and adequate blood supply are the necessary conditions for fracture healing. Proper functional exercise, even proper micromotion of the broken end, can promote the secretion of osteoblast factors at the broken end of the fracture to increase and promote fracture healing.

The existing fracture rehabilitation theory considers that one to two weeks after fracture, active functional exercise for lower limb fracture rehabilitation comprises static contraction movement of quadriceps femoris, so that upper and lower joints of a fracture part are immobilized in principle, and other parts of a body can normally move. Three to six weeks after fracture, callus formation and functional recovery are mainly active movement. The contraction motion of the muscle of the affected limb is continuously increased, and the range of motion of the joint is increased. Six to ten weeks after the fracture, the lower limbs support double-crutch walking to change into single crutch, then the crutch is abandoned for walking, the leg swinging and rotating actions are increased, and the fracture rehabilitation is promoted.

And the axial stress stimulation throughout the fracture healing period 4 is considered to be actively carried out, so that the fracture healing period can be obviously shortened, and the bone formation of the fractured ends is promoted. The main functional exercises of the lower limbs are standing and walking, and the stress angle of the fractured ends and the walking weight cannot be regularly controlled in the standing and walking processes in daily life, so that the bone is not disconnected due to excessive movement. In clinic, after a patient with nonunion is found to have correct and regular axial stress stimulation and treading exercise, the X-ray nonunion fracture union is rechecked. This may be associated with regular, small, multiple, directional axial stimulation of the fracture ends.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lower limb fracture is strong and is taken exercise device to solve above-mentioned problem.

In order to achieve the above object, the utility model discloses a technical scheme be:

the utility model provides a low limbs fracture is strong and is tempered device, includes seat body and the removal push pedal structure of setting on the seat body, the seat body includes the back that seat and seat rear side set up, and the seat front end sets up the flat board, and dull and stereotyped width is less than the width at seat, and the one end of keeping away from the seat sets up the removal push pedal structure, remove the push pedal structure including promoting box, push pedal, rack and PLC controller, set up the servo motor and the speed reducer of mutual intercommunication in the promotion box, the axostylus axostyle of speed reducer is parallel with dull and stereotyped minor face, and the both ends of axostylus axostyle set up the gear respectively, and the symmetry sets up the rack of mutually supporting with the gear on the flat board, and the rack is parallel with dull and stereotyped long limit, and the push pedal sets up in.

The flat plate is provided with a through hole, the through hole is formed at the position close to the joint of the seat and the flat plate, and a boss is arranged in the through hole and used for arranging a cover plate. This through-hole is arranged in carrying out the treatment of knee rehabilitation, puts into this through-hole after being about to shank bending, makes the knee can contact and receive pressure with the push pedal, sets up the boss and can make the flat board resume to a whole plane with the apron, makes the utility model discloses can be used for the rehabilitation at a plurality of positions.

Set up shank fixing device on the apron, shank fixing device includes the connection piece and sets up in the movable plate I and the movable plate II of connection piece both sides, connection piece and apron fixed connection, the inboard edge of movable plate I and movable plate II respectively with connection piece fixed connection, correspond on movable plate I and the movable plate II and set up a plurality of groups fastening area, set up the connection structure of mutually supporting on the fastening area that every group corresponds respectively. Because when carrying out the shank and rehabilitating, the sole receives pressure to push, and the knee is probably bent under human self health reaction, and the shank atress does not accord with the action requirement of rehabilitating under this condition, is difficult to reach the effect of rehabilitating, consequently sets up shank fixing device, and activity piece I and activity piece II are through the fastening belt with the knee and restrict around, thereby the connection piece will be fixed on the apron by the shank of constraint thereby reach the fixed shank especially the purpose that the knee is buckled.

The push pedal is detachable construction, and including plate body and fixed block, the plate body sets up at least one fixed block with the one side that promotes the box contact, promotes to set up on the box and is used for fixing this fixed block with fixed block complex recess, and the opposite side of plate body sets up the cavity, sets up pressure sensor I in the cavity. Can select the push pedal of different cavities according to the object of rehabilitating, improve patient's comfort level, pressure sensor I gives the PLC controller with pressure data transmission to reach the purpose of the statistics of the number of times of rehabilitating and pressure adjustment, can also set up the pad body of suitable thickness in the cavity, neither can influence pressure sensor monitoring, can improve patient's comfort level again.

The concave cavity is in the shape of a human sole or a human knee. Not only can improve the comfort of the patient, but also can effectively prevent the push plate plane from sliding in contact with the bones with convex round surfaces, such as knees and the like, and has poor rehabilitation effect.

Set up spacing area or nothing on the push pedal, spacing area is around locating the cavity top, and the one end in spacing area is fixed to be set up in one side of plate body, and the other end sets up the connection structure who mutually supports respectively with the opposite side of plate body. When the concave cavity is in the shape of the sole of a human body, the push plate provided with the limiting belt is adopted, so that the foot can be effectively fixed, the ankle is prevented from rotating too much, the tibia and the plane of the push plate are kept relatively vertical, and the tibia is stressed uniformly.

The farthest end of the flat plate, far away from the seat, is provided with a limiting baffle plate, the limiting baffle plate is perpendicular to the flat plate, one side, facing the movable push plate structure, of the limiting baffle plate is provided with a pressure sensor II, and the pressure sensor II is communicated with the PLC. The limiting baffle is used for placing the moving push plate structure and excessively retreats to cause falling, when the moving push plate structure is contacted with the pressure sensor II, the pressure sensor II transmits data information to the PLC, and the PLC sends a stop or reverse movement instruction to the servo motor and the speed reducer, so that the moving push plate structure does not move to one side of the limiting baffle any more.

The middle parts of the outer side edges of the movable piece I and the movable piece II are respectively provided with a semicircular arc-shaped notch, and the fastening belts are respectively arranged on two sides of the notch. The gap is used for placing the protruded kneecap, the comfort of the patient is improved, the gap is in a semicircular arc shape, the kneecap of the patient can be further clamped, and the fastening belt firmly fixes the leg fixing device above and below the kneecap respectively.

The flat plate is characterized in that the cover plate is fixedly provided with two binding bands, long axes of the binding bands are perpendicular to long edges of the flat plate, and the binding bands are respectively provided with connecting structures matched with each other. In the through-hole was put into to the apron direct card, some patients have probably the knee can independently take place the bending action when doing the shank and rehabilitating, because shank fixing device is fixed to be set up on the apron, the apron probably is lifted up in the through-hole under this ascending effort, consequently sets up the bandage and is used for fixing the apron on the flat board, draws the bandage both ends respectively to the flat board down through connection structure reciprocal anchorage promptly, makes the apron firmly tie up and ties up in the through-hole.

And an anti-skidding structure is arranged on the periphery of the fixed block. The anti-skidding structure can effectively improve the friction force between the fixed block and the groove and reduce the possibility of falling off when the fixed block is not in contact with contact parts such as soles or knees, but the function is not necessary, because the fixed block has the main function of better fitting the contact parts in the groove and being pushed under pressure after the fixed block is in contact with the contact parts, thereby achieving the purpose of rehabilitation.

The utility model discloses compare in prior art's beneficial effect do:

the utility model discloses a seat body makes things convenient for the patient to carry out the rehabilitation with the position of sitting, the rehabilitation exercise of fracture is carried out the rehabilitation for single leg, consequently set up the flat board and be used for placing the leg that needs the rehabilitation, and this flat board sets up in the front end of seat, the leg that can be rehabilitated as required corresponds the production and sets up the flat board on left side or right side, the flat board is on the coplanar with the upper surface of seat, back and seat are the mutually perpendicular relation, consequently patient's shank and truck are the right angle relation promptly, when sole or knee front side atress, the relative force can be produced to the crotch, can reach the effect of rehabilitating patient's shank when the push pedal reaches the required strength of rehabilitation; real-time data of pressure applied to the soles or the knees of the patient are transmitted to the PLC through the pressure sensors, so that the PLC controls the opening and closing and the forward and reverse movement of the servo motor and the speed reducer, namely the movement direction of the push plate, the pressing times and the pressure applied to the soles and the knees of the patient are controlled according to the PLC.

Drawings

Fig. 1 is a schematic structural view of the present invention (showing a cover plate and a leg fixing device, in which a position-limiting band, a binding band, and a fastening band are in operation);

FIG. 2 is a top view of FIG. 1 (showing the cover plate and leg fixing device, in which the position-limiting band, the binding band and the fastening band are in a non-operating state, and the push plate is a cavity in the shape of a human foot sole);

FIG. 3 is a top view of FIG. 1 (showing the cover and leg securing means removed and the pusher plate employing a human knee-shaped cavity);

FIG. 4 shows a first configuration of the push plate of the present invention (the cavity is in the shape of a human knee);

FIG. 5 is a left side view of FIG. 4;

FIG. 6 shows a second configuration of the push plate of the present invention (the cavity is shaped like a human sole);

FIG. 7 is a left side view of FIG. 6;

the reference numerals have the following meanings: 1. a seat body; 2. moving the push plate structure; 3. a seat; 4. a backrest; 5. a flat plate; 7. pushing the box body; 8. pushing the plate; 9. a rack; 10. a PLC controller; 11. a servo motor; 12. a speed reducer; 13. a gear; 14. a pressure sensor I; 15. a through hole; 16. a boss; 17. a cover plate; 18. a leg fixing device; 19. connecting sheets; 20. a movable sheet I; 21. a movable plate II; 22. a fastening tape; 23. a connecting structure; 24. a plate body; 25. a fixed block; 26. a groove; 27. a concave cavity; 28. a limiting band; 29. a limit baffle; 30. a pressure sensor II; 31. a notch; 32. and (4) binding the bands.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1-3, a lower limb fracture rehabilitation exercise device comprises a seat body 1 and a movable push plate structure 2 arranged on the seat body 1, wherein the seat body 1 comprises a seat 3 and a backrest 4 arranged at the rear side of the seat 3, a flat plate 5 is arranged at the front end of the seat 3, the width of the flat plate 5 is smaller than that of the seat 3, the movable push plate structure 2 is arranged at one end far away from the seat 3, the movable push plate structure 2 comprises a push box 7, a push plate 8, a rack 9 and a PLC controller 10, a servo motor 11 and a reducer 12 which are mutually communicated are arranged in the push box 7, a shaft lever of the reducer 12 is parallel to the short side of the flat plate 5, gears 13 are respectively arranged at two ends of the shaft lever, racks 9 which are mutually matched with the gears 13 are symmetrically arranged on the flat plate 5, the rack 9 is parallel to the long side of the flat plate 5, a pressure sensor I14 is arranged on the push plate 8, the pressure sensor I14, the speed reducer 12 and the servo motor 11 are respectively communicated with the PLC 10, and the length of the rack 9 is not shorter than 1/2 of the cover plate 17.

The flat plate 5 is provided with a through hole 15, the through hole 15 is arranged at a position close to the connection part of the seat 3 and the flat plate 5, and a boss 16 for arranging a cover plate 17 is arranged in the through hole 15.

Set up shank fixing device 18 on the apron 17, shank fixing device 18 includes connection piece 19 and sets up in I20 of the movable plate and II 21 of movable plate of the 19 both sides of connection piece, connection piece 19 and apron 17 fixed connection, the inboard side of I20 of movable plate and II 21 of movable plate respectively with connection piece 19 fixed connection, correspond on I20 of movable plate and the II 21 of movable plate and set up a plurality of groups fastening area 22, set up the connection structure 23 of mutually supporting on the fastening area 22 that every group corresponds respectively.

The push plate 8 is detachable structure, and including plate body 24 and fixed block 25, the one side of plate body 24 and the contact of promotion box 7 sets up at least one fixed block 25, promotes to set up on the box 7 and is used for fixed this fixed block 25 with fixed block 25 complex recess 26, and the opposite side of plate body 24 sets up cavity 27, sets up pressure sensor I14 in the cavity 27.

As shown in fig. 4-7, the concavity 27 is in the shape of a human sole or a human knee.

The push plate 8 is provided with a limiting belt 28 or not, the limiting belt 28 is wound above the concave cavity 27, one end of the limiting belt 28 is fixedly arranged on one side of the plate body 24, and the other end of the limiting belt 28 and the other side of the plate body 24 are respectively provided with a connecting structure 23 which is matched with each other.

The farthest end of the flat plate 5, which is far away from the seat 3, is provided with a limiting baffle 29, the limiting baffle 29 is perpendicular to the flat plate 5, one side, facing the moving push plate structure 2, of the limiting baffle 29 is provided with a pressure sensor II 30, and the pressure sensor II 30 is communicated with the PLC 10.

The middle parts of the outer side edges of the movable piece I20 and the movable piece II 21 are respectively provided with a semicircular arc-shaped notch 31, and the fastening belts 22 are respectively arranged at two sides of the notch 31.

Two binding bands 32 are fixedly arranged on the cover plate 17, the long axes of the binding bands 32 are perpendicular to the long edges of the flat plate 5, and the binding bands 32 are respectively provided with connecting structures 23 which are matched with each other.

And an anti-skid structure is arranged on the periphery of the fixed block 25.

The connecting structure adopts a thread gluing structure.

Before femoral fracture is rehabilitated, firstly, the cover plate 17 and the leg fixing device 18 are taken out from the through hole 15, the push plate 8 is replaced by the push plate 8 with a human knee-shaped concave cavity, namely, the fixing block 25 at the rear side of the push plate 8 is inserted into the groove 26 for pushing the box body 7, then, a patient sits on the seat 3, a single leg to be rehabilitated is bent and then placed in the through hole 15, the included angle between the thigh and the shank is about 90 degrees, at the moment, if the back of the patient does not abut against the backrest, a back cushion with proper thickness and hardness can be placed, and the included angle between the back and the leg of the patient is about 90 degrees.

Then, the PLC controller is preset, and the preset items comprise: automatically recording the number of times of the occurrence moment when the pressure sensor I14 monitors that the pressure value is greater than 0; presetting pressure parameters (the pressure at the initial stage of rehabilitation is preset to be about 25Kg, the pressure is gradually increased along with the rehabilitation time and the fracture healing condition, the pressure can be preset to be 35Kg after 2-3 months, and the pressure equivalent to the weight of a patient can be preset after about 100 days), and when the pressure sensor I14 monitors that the pressure value reaches the preset parameters, the PLC controls the control state of mechanisms such as a servo motor, a speed reducer and the like; and presetting the control state of the PLC controller on mechanisms such as the servo motor, the speed reducer and the like when the pressure sensor II 30 monitors the pressure value greater than 0.

When femoral fracture rehabilitation is carried out, power is supplied to an electronic mechanism such as a PLC (programmable logic controller), a servo motor, a speed reducer and the like, the servo motor and the speed reducer are started through the PLC, a shaft rod of the speed reducer rotates to drive a gear 13 to rotate so as to enable the gear 13 to move towards the knee along a rack 9, a push plate 8 moves towards the knee under the pushing of a pushing box body 7, when a pressure value is generated for the first time by a pressure sensor I14 and is greater than 0, the PLC records the rehabilitation times as 1, the knee enters a knee-shaped cavity of a human body, the push plate pushes and presses the knee, the femur is subjected to pressure, when the pressure value monitored by the pressure sensor I14 reaches a preset parameter, data is sent to the PLC, the PLC controls the servo motor and the speed reducer to stop, when the duration time reaches the preset time, the PLC restarts the servo motor and the speed reducer, when the pressure value of monitoring as pressure sensor I14 is 0, PLC controller control servo motor and speed reducer are to the knee direction motion, PLC controller record is recovered when pressure sensor I14 second emergence pressure value >0 state and is "2", the push pedal bulldozes the knee, repeat above-mentioned action, when the number of times of recovering strong reaches the requirement, make servo motor and speed reducer stop to the knee direction motion by medical personnel control PLC controller, and continue to the direction motion of keeping away from the knee, PLC controller control servo motor and speed reducer shut down when monitoring the pressure value until pressure sensor II 30 >0 state, femoral fracture is recovered and is accomplished, the patient leaves the utility model discloses can.

Before the tibiofibula fracture is rehabilitated, the two binding bands 32 are respectively wound below the flat plate 5 and are mutually connected and fixed through the connecting structure 23, so that the cover plate 17 is firmly fixed in the through hole 15 of the flat plate 5, the push plate 8 is replaced by the push plate 8 provided with the human body sole-shaped concave cavity, namely, a fixed block 25 at the rear side of a push plate 8 is inserted into a groove 26 of a push box body 7, then a patient sits on a seat 3, a single leg to be rehabilitated is horizontally placed on a flat plate 5, the leg is positioned between two racks 9, a movable sheet I20 and a movable sheet II 21 respectively coat the leg from two sides of the leg, the position of the patient is adjusted, the knee part of the patient is clamped into a gap 31, the fastening straps 22 are then connected, one by one, while if the patient's back is not in close proximity to the backrest, a cushion of appropriate thickness and hardness can be placed to ensure that the angle between the patient's back and legs is around 90 °.

Then, the PLC controller is preset, and the preset items comprise: automatically recording the number of times of the occurrence moment when the pressure sensor I14 monitors that the pressure value is greater than 0; presetting pressure parameters required by leg rehabilitation of a rehabilitation patient (the pressure is preset to be about 15Kg at the initial rehabilitation stage, the pressure is gradually increased along with the rehabilitation time and the fracture healing condition, and the pressure can be preset to be 30Kg after 2-3 months), and when a pressure sensor I14 monitors that the pressure value reaches the preset parameters, a PLC controller controls the servo motor, a speed reducer and other mechanisms; and presetting the control state of the PLC controller on mechanisms such as the servo motor, the speed reducer and the like when the pressure sensor II 30 monitors the pressure value greater than 0.

When the tibiofibula fracture is rehabilitated, the power is supplied to the PLC controller, the servo motor, the speed reducer and other electronic mechanisms, the servo motor and the speed reducer are started through the PLC controller, the shaft lever of the speed reducer rotates to drive the gear 13 to rotate so as to enable the gear 13 to move towards the sole direction along the rack 9, the push plate 8 moves towards the sole direction under the pushing of the pushing box body 7, when the pressure sensor I14 generates a pressure value greater than 0 for the first time, the PLC controller records the rehabilitation frequency as 1, and controls the servo motor and the speed reducer to stop, at the moment, the medical staff adjusts the sole position of a patient to enter a cavity of the sole shape of the human body, then the limit belt 28 is wound on the foot surface of the rehabilitated leg, so that the limit belt can limit the foot and prevent the foot from generating overlarge left-right swing in the rehabilitating process, the limit belt 28 and the plate body 24 are, the servo motor and the speed reducer are started again through the PLC, so that the push plate pushes and presses the sole, the tibiofibula is stressed, when the pressure value monitored by the pressure sensor I14 reaches a preset parameter, data are sent to the PLC, the PLC controls the servo motor and the speed reducer to stop working, when the duration time reaches a preset time, the PLC restarts the servo motor and the speed reducer to move in the direction away from the sole, when the pressure value monitored by the pressure sensor I14 is 0, the PLC controls the servo motor and the speed reducer to move in the sole direction, when the pressure value generated by the pressure sensor I14 for the second time is greater than 0, the PLC records that the rehabilitation frequency is '2', the PLC starts the servo motor and the speed reducer to continue moving, so that the push plate pushes and presses the sole, the actions are repeated, when the rehabilitation frequency reaches the requirement, the medical personnel controls the PLC to stop the servo motor and the speed reducer from moving in the sole direction, and continuously to keeping away from plantar direction motion, PLC controller control servo motor and speed reducer shut down when pressure sensor II 30 monitors the pressure value >0 state, and the shank is strong the end again, opens shank fixing device 18 and spacing area 28, and the patient leaves the utility model discloses can.

Claims (10)

1. The utility model provides a lower limbs fracture is strong and is taken exercise device which characterized in that: the chair comprises a chair body (1) and a movable push plate structure (2) arranged on the chair body (1), wherein the chair body (1) comprises a seat (3) and a backrest (4) arranged at the rear side of the seat (3), a flat plate (5) is arranged at the front end of the seat (3), the width of the flat plate (5) is smaller than that of the seat (3), the movable push plate structure (2) is arranged at one end far away from the seat (3), the movable push plate structure (2) comprises a push box body (7), a push plate (8), a rack (9) and a PLC (programmable logic controller) (10), a servo motor (11) and a speed reducer (12) which are communicated with each other are arranged in the push box body (7), a shaft lever of the speed reducer (12) is parallel to the short side of the flat plate (5), gears (13) are respectively arranged at the two ends of the shaft lever, the rack (9) which is mutually matched with the gear (13) is symmetrically arranged on the, the push plate (8) is arranged on one side, close to the seat (3), of the push box body (7), a pressure sensor I (14) is arranged on the push plate (8), and the pressure sensor I (14), the speed reducer (12) and the servo motor (11) are communicated with the PLC (programmable logic controller) 10 respectively.

2. The lower limb fracture rehabilitation exercise device of claim 1, wherein: the novel seat is characterized in that a through hole (15) is formed in the flat plate (5), the through hole (15) is formed in the position close to the joint of the seat (3) and the flat plate (5), and a boss (16) is arranged in the through hole (15) and used for arranging a cover plate (17).

3. The lower limb fracture rehabilitation exercise device of claim 2, wherein: set up shank fixing device (18) on apron (17), shank fixing device (18) include connection piece (19) and set up in movable piece I (20) and movable piece II (21) of connection piece (19) both sides, connection piece (19) and apron (17) fixed connection, the inboard side of movable piece I (20) and movable piece II (21) respectively with connection piece (19) fixed connection, correspond on movable piece I (20) and movable piece II (21) and set up a plurality of groups fastening area (22), set up connection structure (23) of mutually supporting on the fastening area (22) that every group corresponds respectively.

4. The lower limb fracture rehabilitation exercise device of claim 3, wherein: push pedal (8) are detachable construction, including plate body (24) and fixed block (25), and plate body (24) set up at least one fixed block (25) with the one side that promotes box (7) contact, promote to set up on box (7) and be used for fixing this fixed block (25) with fixed block (25) complex recess (26), the opposite side of plate body (24) sets up cavity (27), sets up pressure sensor I (14) in cavity (27).

5. The lower limb fracture rehabilitation exercise device of claim 4, wherein: the cavity (27) is in the shape of a human sole or a human knee.

6. The lower limb fracture rehabilitation exercise device of claim 5, wherein: set up spacing area (28) or nothing on push pedal (8), spacing area (28) are around locating cavity (27) top, and the one end of spacing area (28) is fixed to be set up in one side of plate body (24), and the other end sets up connection structure (23) of mutually supporting respectively with the opposite side of plate body (24).

7. The lower limb fracture rehabilitation exercise device of claim 6, wherein: the farthest end of the flat plate (5) far away from the seat (3) is provided with a limiting baffle (29), the limiting baffle (29) is perpendicular to the flat plate (5), one side, facing the moving push plate structure (2), of the limiting baffle (29) is provided with a pressure sensor II (30), and the pressure sensor II (30) is communicated with the PLC (programmable logic controller) (10).

8. The lower limb fracture rehabilitation exercise device of claim 7, wherein: the middle parts of the outer side edges of the movable piece I (20) and the movable piece II (21) are respectively provided with a semi-circular arc-shaped notch (31), and the fastening belts (22) are respectively arranged at two sides of the notch (31).

9. The lower limb fracture rehabilitation exercise device of claim 8, wherein: two binding bands (32) are fixedly arranged on the cover plate (17), the long axes of the binding bands (32) are perpendicular to the long edges of the flat plate (5), and the binding bands (32) are respectively provided with connecting structures (23) which are matched with each other.

10. The lower limb fracture rehabilitation exercise device of claim 9, wherein: and an anti-skid structure is arranged on the periphery of the fixing block (25).

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