Bone joint movement rehabilitation auxiliary device

Abstract

The invention relates to the technical field of rehabilitation instruments, and discloses a bone joint movement rehabilitation assisting device which comprises a base hinged to a first leg plate. The sliding seat is slidably connected to the base, a sliding groove is formed in the sliding seat, and the sliding groove penetrates through the side away from the first leg plate; the sliding seat is connected with the sliding driving piece, and a sliding block is connected to the sliding groove in a sliding mode; the resistance rod is vertically arranged on the side, close to the first leg plate, of the sliding block, penetrates through the side, away from the penetrating direction, of the sliding groove and is provided with a first elastic piece connected with the sliding block; one end of the second leg plate is hinged with the first leg plate, the other end is hinged with a connecting plate, one end of the connecting plate far away from the second leg plate is hinged with the sliding block, and one side of the second leg plate close to the connecting plate is provided with a pedal; the baffle is detachably connected into the sliding groove. The device can realize effective running-in of the knee joint of the patient, solves the problem of adhesion of the knee joint, can avoid leg muscle atrophy of the patient, and further improves the recovery speed of the knee joint of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation equipment, and in particular to a bone and joint activity rehabilitation auxiliary device. Background Art

[0002] Among all the bone joints in the human body, the knee joint is an important joint that undertakes supporting and movement functions. If the knee joint is not effectively exercised in time during the recovery period after injury or medical surgery, it is very easy to cause adhesion and muscle atrophy in the knee joint, thereby greatly limiting the movement ability of the knee joint. In severe cases, it may even cause permanent defects in some joint functions. Therefore, patients often need to use bone and joint activity rehabilitation assistive devices after surgery to exercise the knee joint to help the knee joint recover quickly.

[0003] The bone joint activity rehabilitation auxiliary device in the prior art is mostly composed of two mutually hinged support plates and a sliding drive member that drives the two support plates to perform bending movement. When using this bone joint activity rehabilitation auxiliary device for knee rehabilitation training, the patient's thigh and calf are respectively bound on the two support plates, and the two support plates are driven by the sliding drive member to perform reciprocating bending and deflection to achieve activity training for the patient's knee joint. Although this bone joint activity rehabilitation auxiliary device that only performs activity training for the knee joint can alleviate the adhesion problem of the patient's knee joint during rehabilitation to a certain extent, since the knee joint needs to bear the pressure of the body on the joint part under normal working conditions, the joint distance of the knee joint will be reduced under pressure. Only performing the above-mentioned form of activity training on the knee joint will result in insufficient running-in of the patient's knee joint, thereby affecting the normal pressure-bearing activity between the knee joints. Summary of the invention

[0004] The present invention proposes a bone joint activity rehabilitation auxiliary device to solve the deficiencies in the above-mentioned prior art. The bone joint activity rehabilitation auxiliary device can effectively run-in the patient's knee joint, so that the knee joint can perform normal pressure-bearing activities after training.

[0005] The technical solution of the present invention is: a bone joint activity rehabilitation auxiliary device, comprising a base, a sliding drive member and a leg support member, the leg support member comprising two mutually hinged first leg plates and a second leg plate, the first leg plate is hinged to the base, the second leg plate is hinged to a connecting plate, a pedal is provided on one side of the second leg plate close to the connecting plate, the bone joint activity rehabilitation auxiliary device also includes:

[0006] A slide seat is slidably connected to the base, and a slide groove is provided on the slide seat, and the slide groove penetrates toward a side away from the first leg plate; the sliding drive member is connected to the slide seat, and is used to drive the slide seat to slide on the bottom plate;

[0007] A slider is slidably connected in the slide groove; one end of the connecting plate away from the second leg plate is hinged to the slider;

[0008] A resistance rod is vertically arranged on a side of the slider close to the first leg plate, the resistance rod passes through a side of the slide slot away from the penetration direction, the resistance rod is provided with a first elastic member for providing resistance to the movement of the resistance rod toward the penetration direction of the slide slot, and the length of the resistance rod is greater than the length of the slide slot;

[0009] a baffle, detachably connected in the slide;

[0010] When the sliding drive member drives the slide seat to slide on the bottom plate, the baffle is located in the slide groove and is used to block the movement of the slide block in the direction of the slide groove passing through;

[0011] When the patient steps on the pedal to drive the first leg board and the second leg board to move from the arched state to the state tending to the same plane, the baffle is removed to allow the resistance rod to extend out of the slide slot, thereby allowing the slider to slide onto the resistance rod outside the slide slot.

[0012] In at least one embodiment of the present invention, a support plate is provided on the base, a rotating shaft is transversely passed through the support plate, the rotating shaft is rotatably connected to the support plate, a driving gear is provided on the side of the rotating shaft close to the second leg plate, an internal threaded tube is rotatably connected to the side of the slider close to the support plate, the resistance rod is passed through the slider, the resistance rod is threadedly connected to the internal threaded tube, a driven gear meshing with the driving gear is provided on the internal threaded tube, a rotating member is provided on the rotating shaft, the rotating member is used to drive the rotating shaft to rotate, a retaining ring is provided on the end of the resistance rod away from the slider, and the first elastic member is a first spring, and the first elastic member is sleeved on the resistance rod between the baffle and the slider.

[0013] In at least one embodiment of the present invention, a second spring is provided on the side of the slider away from the resistance rod, the second spring is in contact with the baffle, and a third spring is installed between the slider on the resistance rod and the inner wall of the slide groove, and the second spring and the third spring are used to provide buffering for the sliding of the slider.

[0014] In at least one embodiment of the present invention, the support plate is provided with a first transverse through hole, the baffle is provided with a second through hole, the inner cavity of the first through hole is adapted to the outer periphery of the slide seat, and the second through hole and the resistance rod are at the same level.

[0015] In at least one embodiment of the present invention, a spherical groove is provided on one side of the support plate close to the second leg plate, a first through groove is provided on the first leg plate extending along the length direction, and a second through groove is provided on the second leg plate extending along the length direction, sliding rods are slidably connected in the first through groove and the second through groove, and a second elastic member is provided on the two sliding rods, and the second elastic member is used to drive the two sliding rods to slide toward the support plate, and the end of the sliding rod close to the support plate is a sphere matching the spherical groove, and a strip hole connected to the first through groove is provided on the top surface of the second leg plate, and the pedal is hinged on the second leg plate, and a slot matching the pedal is provided on the top of the sliding rod.

[0016] In at least one embodiment of the present invention, a second elastic member connected to the pedal is disposed in the strip-shaped hole, and the second elastic member is used to provide buffering for deflection of the pedal.

[0017] In at least one embodiment of the present invention, a transverse guide groove is provided on the top of the base, and the sliding drive member includes: a screw rod and a drive motor, the screw rod is rotatably connected in the guide groove, the slide seat is threadedly connected to the screw rod, the rotating shaft of the drive motor is connected to the screw rod, the end of the screw rod close to the support plate is a bare rod section, the screw rod passes through the guide groove, the rotating member is a belt transmission mechanism, the rotating member is respectively connected to the outlet end of the screw rod and the rotating shaft, and the slide seat is provided with a reset member, and the reset member is used to drive the slide seat to slide so that the slide seat can re-engage with the screw rod.

[0018] In at least one embodiment of the present invention, a connecting hole passing through the base is provided at the bottom of the guide groove, the reset member is a pull rope, the reset member passes through the connecting hole and extends outside the base, and a pull ring is provided at the protruding end of the reset member.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention provides a sliding seat, a slider, a resistance rod, a baffle, a first leg board and a second push board slidably connected to the base. When performing joint rehabilitation activities, the patient's thigh and calf are respectively bound to the first leg board and the second leg board. In the early stage of the patient's rehabilitation, the baffle is located in the slide groove, and the sliding drive member drives the sliding seat to slide on the base, and the sliding seat drives the slider to move, so as to realize the bending of the first leg board and the second push board around the hinge point, thereby training the patient's knee joint in a small range of activities, thereby alleviating the problem of knee joint stiffness caused by adhesion of the patient's knee joint in the early stage of the patient's rehabilitation; as the patient's knee joint recovers, the baffle can be removed to release the baffle from limiting the sliding of the slider, and the first elastic member can slide the slider and the resistance rod in the direction of the slide groove. The first leg board and the second leg board are provided with resistance for the movement, and the resistance rod can still provide support for the slider after the slider slides out of the slide slot, and provide sufficient movement stroke for the movement of the slider, so that the first leg board and the second leg board can reach the state of tending to the same plane from the arched state. During the training process, the patient drives the slider to move by stepping on the pedal to drive the first leg board and the second leg board to move. At the same time, the pedal can give a reaction force to the knee joint, so as to prompt the knee joint to perform activity training under a certain pressure, and when the first leg board and the second leg board tend to the same plane position, the patient's knee joint is under the greatest pressure. The pressure on the patient's knee joint varies during the entire knee joint pressure training activity, thereby more effectively prompting the patient's knee joint to be effectively run-in, and ensuring that the patient's knee joint can perform pressure-bearing activities normally after training.

[0021] 2. The present invention provides a rotating shaft with a driving gear, an internal threaded tube rotatably connected to the side of the slider, and a resistance rod threadedly connected to the internal threaded tube. Before the patient trains, the rotating shaft can be driven to rotate by the rotating member, and the rotating shaft drives the internal threaded tube to rotate through the driving gear and the driven gear. During the rotation of the internal threaded rod, the resistance rod performs axial movement to adjust the length of the resistance rod extending out of the slide seat, thereby compressing the first spring, thereby changing the pedaling force required by the patient when the slider moves. During the use of the patient, the compression degree of the first spring is gradually adjusted, and the training intensity is gradually increased to achieve activity training of the knee joint under different pressure conditions, avoid the growth of adhesion tissue in the knee joint area, and further improve the recovery speed of the patient's knee joint; and because the patient's leg muscles also need to exert force when stepping, the patient's leg muscles are exercised to avoid atrophy of the patient's leg muscles.

[0022] 3. The present invention arranges a second spring and a third spring on both sides of the slide groove in the slider. When the device is used for rehabilitation training, the second spring and the third spring can play a certain buffering role on the movement of the slider, so that the patient can feel a relatively soft traction force during knee flexion training, thereby avoiding secondary damage to the joint when the device applies force improperly or the range of motion exceeds the range of motion that the patient's joint can withstand. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The main cross-sectional view of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the top view of the bottom plate of the present invention;

[0025] Figure 3 For the present invention Figure 1 Schematic diagram of local structure

[0026] Figure 4 For the present invention Figure 3 A structural diagram;

[0027] Figure 5 For the present invention Figure 3 Schematic diagram of the structure at B;

[0028] Figure 6 The main cross-sectional view of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 7 It is a schematic diagram of a top view and cross-sectional structure of the present invention;

[0030] Figure 8 It is a side view structural schematic diagram of the present invention.

[0031] Description of reference numerals:

[0032] 1. Base; 11. Driving member; 111. Screw rod; 112. Driving motor; 12. Guide groove; 2. First leg plate; 21. First through groove; 22. Sliding rod; 221. Slot; 23. Strip hole; 24. Connecting groove; 3. Sliding seat; 31. Slide groove; 32. Sliding block; 321. Internally threaded tube; 322. Driven gear; 4. Resistance rod; 5. Second leg plate; 51. Connecting plate; 52. Pedal; 53. Second through groove; 6. Baffle plate; 61. Second through hole; 7. Support plate; 71. Rotating shaft; 711. Driving gear; 72. Rotating member; 73. First through hole; 8. Clamping mechanism; 81. Moving block; 82. Arc clamping plate. DETAILED DESCRIPTION

[0033] The drawings in the present invention are not drawn strictly according to the actual scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "up", "down", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] The bone joint activity rehabilitation auxiliary device in the prior art is mostly composed of two mutually hinged support plates and a sliding drive member that drives the two support plates to perform bending movement. When using this bone joint activity rehabilitation auxiliary device for knee rehabilitation training, the patient's thigh and calf are respectively bound to the two support plates, and the two support plates are driven by the sliding drive member to perform reciprocating bending and deflection to achieve activity training for the patient's knee joint. Although this bone joint activity rehabilitation auxiliary device that only performs activity training on the knee joint can alleviate the adhesion problem of the patient's knee joint during rehabilitation to a certain extent, since the knee joint needs to bear the pressure of the body on the joint part under normal working conditions, the joint distance of the knee joint will be reduced under pressure. Therefore, it is difficult to achieve effective running-in of the joint part and eradicate the adhesion problem of the knee joint part by only performing activity training on the knee joint, and it is easy to cause atrophy of the patient's leg muscles, thereby affecting the recovery speed of the patient's knee joint.

[0037] In view of this, the present invention proposes a bone and joint activity rehabilitation auxiliary device, which can realize the activity training of the patient's legs, and can also perform activity training on the patient's knee joints under certain pressure conditions, so as to achieve effective running-in of the patient's knee joints, effectively solve the adhesion problem of the knee joints, avoid the patient's leg muscle atrophy, and improve the recovery speed of the patient's knee joints.

[0038] Combination Figures 1 to 8As shown, a bone joint activity rehabilitation auxiliary device includes a base 1, a sliding drive member 11 and a leg support member, the leg support member includes a first leg plate 2 and a second leg plate 5 hinged to each other, the first leg plate 2 is hinged to the base 1, a connecting plate 51 is hinged on the second leg plate 5, and a pedal 52 is provided on one side of the second leg plate 5 close to the connecting plate 51. The bone joint activity rehabilitation auxiliary device also includes:

[0039] The slide 3 is slidably connected to the base 1, and a slide groove 31 is provided on the slide 3, and the slide groove 31 penetrates toward a side away from the first leg plate 2; the sliding driving member 11 is connected to the slide 3, and is used to drive the slide 3 to slide on the bottom plate 1;

[0040] The slider 32 is slidably connected in the slide groove 31; one end of the connecting plate 51 away from the second leg plate 5 is hinged to the slider 32;

[0041] The resistance rod 4 is vertically arranged on the side of the slider 32 close to the first leg plate 2, and the resistance rod 4 passes through the side of the slide slot 31 away from the penetration direction. The resistance rod 4 is provided with a first elastic member for providing resistance to the movement of the resistance rod 4 in the penetration direction of the slide slot 31. The length of the resistance rod 4 is greater than the length of the slide slot 31. Specifically, the resistance rod 4 can be a metal rod. The resistance rod 4 made of metal has a strong bearing capacity. When performing large-scale activity training, the slider 32 can slide out of the slide slot 31, and the resistance rod 4 can support the entire leg support member.

[0042] The baffle 6 is detachably connected to the slide groove 31, and the baffle 6 is used to block or release the blocking of the slider 32 in different training modes; specifically, the inner walls of the slide groove 31 on the slide seat 3 are relatively provided with card-mounting grooves, and the two card-mounting grooves pass through the top of the slide seat 3, and the baffle 6 is inserted into the card-mounting grooves; when the patient performs ordinary flexion activity training of the knee joint, the baffle 6 is located in the card-mounting groove to block the movement of the slider 32, and when the knee joint is trained under pressure, the blocking of the slider 32 by the baffle 6 is removed.

[0043] In the early stage of the patient's postoperative recovery, when the sliding drive member 11 drives the slide 3 to slide on the bottom plate 1, the baffle 6 is located in the slide groove 31 to block the movement of the slider 32 in the direction of passing through the slide groove 31;

[0044] As the patient's knee joint recovers, when the patient steps on the pedal 52 to drive the first leg board 2 and the second leg board 5 to move from the arched state to the state tending to the same plane, the baffle 6 is removed to allow the resistance rod 4 to extend out of the slide slot 31, and then the slider 32 slides onto the resistance rod 4 outside the slide slot 31, so that the resistance rod 4 can still provide support for the slider 32 after the slider 32 slides out of the slide slot 31, providing sufficient movement stroke for the movement of the slider 32, so that the first leg board 2 and the second leg board 5 can move from the arched state to the state tending to the same plane. During the training process, the patient drives the slider 32 to drive the first leg board 2 and the second leg board 5 to move by stepping on the pedal 52.

[0045] As an alternative embodiment, a support plate 7 is provided on the base 1, a rotating shaft 71 is horizontally passed through the support plate 7, the rotating shaft 71 is rotatably connected to the support plate 7, a driving gear 711 is provided on the side of the rotating shaft 71 close to the second leg plate 5, a side of the slider 32 close to the support plate 7 is rotatably connected to an internal threaded tube 321, a resistance rod 4 is passed through the slider 32, the resistance rod 4 is threadedly connected to the internal threaded tube 321, a driven gear 322 meshing with the driving gear 711 is provided on the internal threaded tube 321, a rotating member 72 is provided on the rotating shaft 71, and the rotating member 72 is used to drive the rotating shaft 71 to rotate, and a retaining ring is provided at the end of the resistance rod 4 away from the slider 32. The first elastic member is a first spring, and the first elastic member is mounted between the baffle 6 on the resistance rod 4 and the slider 32; further, the sliding connection between the resistance rod 4 and the side wall of the slide groove 31 is a rectangular rod. During the rotation of the internal threaded tube 321, the resistance rod 4 will not rotate with the rotation of the internal threaded tube 321. The resistance rod 4 can only slide horizontally on the slide groove 31 to achieve compression of the first spring, thereby achieving adjustment of the knee pressure conditions when the device is in use.

[0046] As an alternative embodiment, a second spring is provided on the side of the slider 32 away from the resistance rod 4, and the second spring is in contact with the baffle 6. A third spring is installed between the slider 32 and the inner wall of the slide groove 31 on the resistance rod 4. The second spring and the third spring are used to provide buffering for the sliding of the slider 32. The second spring and the third spring can play a certain buffering role in the movement of the slider 32, so that the patient can feel a relatively soft traction force during knee flexion training, avoiding secondary damage to the joint when the device applies force improperly or the range of motion exceeds the range of motion that the patient's joint can withstand.

[0047] As an alternative embodiment, a first transverse through hole 73 is provided on the support plate 7, and the first through hole 73 is a rectangular hole. The inner cavity of the first through hole 73 is adapted to the outer periphery of the slide seat 3; the setting of the first through hole 73 enables the slide seat 3 to be located in the first through hole 73 during the adjustment of the resistance rod 4, so that the driving gear 711 and the driven gear 322 can be stably meshed, and the baffle plate 6 is provided with a second through hole 61, and the second through hole 61 and the resistance rod 4 are located at the same horizontal height. When the resistance rod 4 is adjusted to a large extent, the resistance rod 4 can pass through the second through hole 61.

[0048] As an alternative embodiment, a spherical groove is provided on the side of the support plate 7 close to the second leg plate 5, a first through groove 21 penetrating along the length direction is provided on the first leg plate 2, and a second through groove 53 penetrating along the length direction is provided on the second leg plate 5, and a sliding rod 22 is slidably connected in the first through groove 21 and the second through groove 53. Specifically, the inner cavity height of the first through groove 21 and the second through groove 53 is greater than the thickness of the sliding rod 22, and the two sliding rods 22 are provided with a second elastic member, and the second elastic member is used to drive the two sliding rods 22 to slide toward the support plate 7, and the end of the sliding rod 22 close to the support plate 7 is a spherical shape that matches the spherical groove, and a strip hole 23 connected to the first through groove 21 is provided on the top surface of the second leg plate 5, and the pedal 52 is hinged on the second leg plate 5, and the top of the sliding rod 22 is provided with a card groove 2 that matches the pedal 52 21. Specifically, the slot 221 is a bar-shaped through slot. During the movement of the sliding rod 22, the pedal 52 is always located in the slot 221. During the adjustment of the resistance rod 4, since the slider 32 is slidably connected to the sliding seat 3, it is easy for the slider 32 to slide in the meshing of the active gear 711 and the driven gear 322, making the adjustment of the resistance rod 4 unsuccessful. Therefore, by setting two sliding rods 22, when the sliding seat 3 is located close to the support plate 7, the first leg plate 2 and the second leg plate 5 tend to the same plane, the two sliding rods 22 are in abutment, and the sliding rod 22 is located in the spherical groove, so that the entire device presents an initial stable state, so that the adjustment of the resistance rod 4 can be smooth and stable. After completing the adjustment of the resistance rod 4, the sliding rod 22 can be disengaged from the spherical groove by stepping on the pedal 52.

[0049] As an alternative embodiment, the second elastic member is a fourth spring, and connecting grooves 24 are provided on both sides of the first through slot 21 and the second through slot 53 of the first leg plate 2 and the second leg plate 5, and the connecting grooves 24 are respectively connected to the first through slot 21 and the second through slot 53, and the first leg plate 2 and the second leg plate 5 are provided with a clamping mechanism 8, and the clamping mechanism 8 includes:

[0050] Multiple moving blocks 81 are respectively arranged in multiple connecting grooves 24, and multiple moving blocks 81 are each provided with a fourth spring connected to the inner wall of the connecting groove 24; the fourth spring is used to provide resistance to the movement of the moving block 81 away from the first through groove 21 and the second through groove 53; multiple moving blocks 81 are each provided with a hinged rod connected to the sliding rod 22, and the two ends of the multiple hinged rods are respectively connected to the moving block 81 and the ball head of the sliding rod 22.

[0051] A plurality of arc-shaped clamping plates 82 are respectively arranged on a plurality of moving blocks 81, and the arc openings of the arc-shaped clamping plates 82 on two relatively moving blocks 81 are opposite to each other. The arc inner sides of the plurality of arc-shaped clamping plates 82 are all protective pads, which are used to play a certain buffering role when clamping the patient's thigh and calf, so that the patient feels the clamping force of the leg is softer. The protective pads can be made of flexible materials such as breathable mesh pads, rubber pads or latex pads filled with sponges. Furthermore, when the first leg board 2 and the second leg board 5 gradually tend to the same plane, the sliding rod 22 close to the support plate 7 will gradually abut against the support plate 7, and at the same time, the two sliding rods 22 will also be opposite to each other. The abutment state will push the two sliding rods 22 to move in the direction away from the support plate 7, so that the sliding rod 22 pushes the moving block 81 through the hinge rod to gradually move in the direction away from the first through slot 21 and the second through slot 53, so that the arc clamping plate 82 relaxes the clamping of the patient's legs. During the uninterrupted training process, the arc clamping plate 82 will continuously tighten and relax the patient's legs. Based on this state, the buffer pad can also be set to a rubber pad with protrusions, so that during the training process, the patient's legs can be massaged, which has the effect of relaxing muscles and activating blood circulation, and is conducive to the patient's rapid recovery.

[0052] As an alternative embodiment, a third elastic member connected to the pedal 52 is provided in the strip hole 23, and the third elastic member is used to provide buffering for the deflection of the pedal 52; specifically, the third elastic member is a spring arranged on both sides of the pedal 52 and abutting against the inner wall of the strip hole 23. The setting of the third elastic member enables the pedal 52 to return to a state perpendicular to the second leg plate 5 after completing the movement of the sliding rod 22, and in the early stage of the patient's training, the third elastic member can also enable the pedal 52 to provide the patient's footsteps with a relatively soft supporting force to avoid secondary injury to the patient.

[0053] As an alternative embodiment, a transverse guide groove 12 is provided on the top of the base 1, and the sliding drive member 11 includes: a screw rod 111 and a drive motor 112, the screw rod 111 is rotatably connected in the guide groove 12, the slide 3 is threadedly connected to the screw rod 111, and the rotating shaft of the drive motor 112 is connected to the screw rod 111, and the end of the screw rod 111 close to the support plate 7 is a smooth rod section, the length of the smooth rod section of the screw rod 111 is greater than the length of the slide 3 along the guide groove 12, the screw rod 111 passes through the guide groove 12, and the rotating member 72 is a belt transmission mechanism, and the rotating member 72 is respectively connected to the passing end of the screw rod 111 and the rotating shaft 71. Specifically, the belt transmission mechanism includes two pulleys and a transmission belt, and the two pulleys are respectively mounted on the rotating shaft 71 and the screw rod 111 of the transmission base 1, and the slide 3 is provided with a reset member, which is used to drive the slide 3 to slide so that the slide 3 is re-engaged with the screw rod 111.

[0054] As an alternative embodiment, the bottom of the guide groove 12 is provided with a connecting hole that passes through the base 1. Specifically, the connecting hole includes a longitudinal hole and a horizontal hole. The longitudinal hole is located at the bottom of the guide groove 12, and the horizontal hole is connected to the longitudinal hole and passes through the side wall of the base 1. The reset member is a pull rope, which passes through the longitudinal hole and the horizontal hole and extends to the outside of the base 1. A pull ring is provided at the protruding end of the reset member. A pulley and a wire ring may be provided on the side wall of the base 1. The pull rope passes around the pulley and passes through the wire ring, so that the pull ring is located on the side of the base 1 to facilitate the patient to pull it.

[0055] The working principle and usage of this embodiment:

[0056] The present invention provides a bone joint activity rehabilitation auxiliary device. When the bone joint activity rehabilitation auxiliary device is in use, in the initial state, the first leg plate 2 and the second leg plate 5 are in the same plane, the two sliding rods 22 are in abutment, the ends of the sliding rods 22 are located in the spherical groove on the support plate 7, the baffle 6 is set in the slide groove 31, and the screw rod 111 is in a meshing state with the slide seat 3.

[0057] In the early stage of the patient's postoperative rehabilitation training, when the patient uses the device only to move the leg joints, the patient places the leg to be exercised on the first leg board 2 and the second leg board 5, and the knee joint is located at the hinge of the first leg board 2 and the second leg board 5. The patient's foot abuts on the pedal 52. When formally training, the patient's foot can lightly step on the pedal 52. Since the pedal 52 is extended into the slot 221, the two sliding rods 22 are driven to move in the direction away from the support plate 7 under the action of the pedal 52, so that the sliding rod 22 is out of the limit of the spherical slot. At this time, under the action of the fourth spring, the moving block 81 moves toward the first leg board 2 and the second leg board 5. The first through slot 21 and the second through slot 53 move in the direction of the first through slot 21 and the second through slot 53, so that the moving block 81 drives the arc clamping plate 82 to clamp the patient's thigh and calf, and then the driving motor 112 is started to drive the screw rod 111 to rotate. Since the slide 3 and the screw rod 111 are threadedly connected, the forward and reverse rotation of the screw rod 111 can drive the slide 3 to slide back and forth on the guide slot 12. When the slide 3 moves, the first leg plate 2 and the second leg plate 5 are driven to move upward and bend through the slider 32 and the connecting plate 51, thereby driving the patient's thigh and calf to move and bend, thereby realizing the activity training of the patient's knee joint.

[0058] During the above-mentioned activity training of the patient's knee joint, since the second spring and the third spring are respectively provided on both sides of the slider 32 in the slide groove 31, the second spring and the third spring can play a certain buffering role in the movement of the slider 32, so that the patient can feel a relatively soft traction force during the knee joint flexion training, avoiding secondary damage to the joint when the device applies force improperly or the range of motion exceeds the range of motion that the patient's joint can withstand.

[0059] As the patient's knee joint gradually recovers, the device can be used to perform activity training of the patient's knee joint under certain pressure conditions. During operation, the baffle 6 is first removed to release the limit of the baffle 6 on the movement of the slider 32. The arc-shaped clamping plate 82 is used to clamp and fix the patient's leg, and then the drive motor 112 is started to drive the screw rod 111 to rotate, so that the screw rod 111 drives the slide 3 to move to the middle position of the guide groove 12. Then the patient can step on the pedal 52 to gradually force the knee joint position and bend it, thereby realizing the training of the knee joint under pressure conditions.

[0060] When performing knee pressure condition training, the patient can adjust the intensity of the pressure training according to the rehabilitation condition of his knee joint. During the adjustment, at the initial stage of the training, the patient can start the drive motor 112 in the initial state of the device, so that the drive motor 112 continues to drive the slide 3 to move toward the support plate 7 through the screw rod 111, and the slide 3 is disengaged from the meshing with the screw rod 111. At this time, the active gear 711 and the driven gear 322 on the internal threaded tube 321 are in a meshing state. At this time, the screw rod 111 is driven to rotate by the forward and reverse rotation of the drive motor 112 again, and the screw rod 111 drives the rotating shaft 71 to rotate through the rotating member 72. The rotating shaft 71 drives the internal threaded tube 321 to rotate through the active gear 711 and the driven gear 322. Since the internal threaded tube 321 and the resistance The force rod 4 is in an engaged state, and the rotation of the internal threaded tube 321 can further adjust the length of the resistance rod 4 extending out of the slide 3 to achieve compression of the first spring. After completing the adjustment of the extension length of the resistance rod 4, the patient needs to manually pull the pull ring to make the slide 3 move toward the threaded part of the screw rod 111, and drive the screw rod 111 to rotate through the driving motor 112 so that the screw rod 111 and the slide 3 are re-engaged, and the slide 3 is moved to the middle position of the guide groove 12, and the first spring on the resistance rod 4 is compressed, thereby increasing the force required for the slide 32 to slide. During training, the patient needs to use greater pedaling force to achieve the movement of the slide 32, and make the first leg plate 2 and the second leg plate 5 deflect and bend, thereby achieving leg bending activity training under different pressure conditions.

[0061] After the above-mentioned training stages are completed, the driving slide 3 is moved close to the support plate 7, and the sliding rod 22 is embedded in the spherical groove, so that it is convenient for the patient to use or adjust the compression degree of the first spring during the next training activity, so as to realize the activity training of the knee joint under different pressure conditions.

[0062] The above embodiments are only specific implementation methods of the patent of the present invention, which are used to illustrate the technical solution of the patent of the present invention rather than to limit it. The protection scope of the patent of the present invention is not limited thereto. Although the patent of the present invention is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution for implementing the patent of the present invention, and should be covered within the protection scope of the present invention.

Claims

1. A bone joint activity rehabilitation auxiliary device, comprising a base (1), a sliding drive member (11) and a leg support member, wherein the leg support member comprises a first leg plate (2) and a second leg plate (5) which are hinged to each other, wherein the first leg plate (2) is hinged to the base (1), and a connecting plate (51) is hinged to the second leg plate (5), characterized in that: A pedal (52) is provided on one side of the second leg plate (5) close to the connecting plate (51). The bone joint activity rehabilitation auxiliary device also includes: The slide seat (3) is slidably connected to the base (1), and a slide groove (31) is provided on the slide seat (3), and the slide groove (31) penetrates toward a side away from the first leg plate (2); the sliding drive member (11) is connected to the slide seat (3) and is used to drive the slide seat (3) to slide on the bottom plate (1); The slider (32) is slidably connected in the slide groove (31); one end of the connecting plate (51) away from the second leg plate (5) is hingedly connected to the slider (32); A resistance rod (4) is vertically arranged on a side of the slider (32) close to the first leg plate (2), the resistance rod (4) passes through the side of the slide groove (31) away from the penetration direction, and a first elastic member is provided on the resistance rod (4) for providing resistance to the movement of the resistance rod (4) in the penetration direction of the slide groove (31), and the length of the resistance rod (4) is greater than the length of the slide groove (31); A baffle (6) detachably connected in the slide groove (31); When the sliding drive member (11) drives the slide seat (3) to slide on the bottom plate (1), the baffle (6) is located in the slide groove (31) and is used to block the movement of the slide block (32) in the direction of penetrating the slide groove (31); When the patient steps on the pedal (52) to drive the first leg board (2) and the second leg board (5) to move from an arched state to a state tending to the same plane, the baffle (6) is removed to allow the resistance rod (4) to extend out of the slide groove (31), thereby allowing the slider (32) to slide onto the resistance rod (4) outside the slide groove (31).

2. A bone joint activity rehabilitation auxiliary device as claimed in claim 1, characterized in that: The base (1) is provided with a support plate (7), a rotating shaft (71) is transversely passed through the support plate (7), the rotating shaft (71) is rotatably connected to the support plate (7), a driving gear (711) is provided on the side of the rotating shaft (71) close to the second leg plate (5), an internally threaded tube (321) is rotatably connected to the side of the slider (32) close to the support plate (7), the resistance rod (4) is passed through the slider (32), and the resistance rod (4) and the internally threaded tube (321) are connected to each other. ) threadedly connected, the internally threaded tube (321) is provided with a driven gear (322) meshing with the driving gear (711), the rotating shaft (71) is provided with a rotating member (72), the rotating member (72) is used to drive the rotating shaft (71) to rotate, the resistance rod (4) is provided with a retaining ring at one end away from the slider (32), the first elastic member is a first spring, the first elastic member is sleeved on the resistance rod (4), and the first elastic member is located between the baffle (6) and the slider (32).

3. The bone joint activity rehabilitation auxiliary device according to claim 1, characterized in that: A second spring is provided on the side of the slider (32) away from the resistance rod (4), the second spring abutting against the baffle (6), and a third spring is sleeved between the slider (32) on the resistance rod (4) and the inner wall of the slide groove (31).

4. The bone joint activity rehabilitation auxiliary device according to claim 2, characterized in that: The support plate (7) is provided with a first transverse through hole (73), the baffle plate (6) is provided with a second through hole (61), the inner cavity of the first through hole (73) is adapted to the outer periphery of the slide seat (3), and the second through hole (61) and the resistance rod (4) are located at the same horizontal height.

5. The bone joint activity rehabilitation auxiliary device according to claim 2, characterized in that: A spherical groove is provided on one side of the support plate (7) close to the second leg plate (5); a first through groove (21) penetrating along the length direction is provided on the first leg plate (2); a second through groove (53) penetrating along the length direction is provided on the second leg plate (5); sliding rods (22) are slidably connected in the first through groove (21) and the second through groove (53); a second elastic member is provided on the two sliding rods (22); the second elastic member is used to drive the two sliding rods (22) to slide toward the support plate (7); the end of the sliding rod (22) close to the support plate (7) is a sphere matched with the spherical groove; a strip hole (23) connected with the first through groove (21) is provided on the top surface of the second leg plate (5); the pedal (52) is hinged on the second leg plate (5); a slot (221) matched with the pedal (52) is provided on the top of the sliding rod (22).

6. The bone joint activity rehabilitation auxiliary device according to claim 5, characterized in that: A second elastic member connected to the pedal (52) is arranged in the strip-shaped hole (23), and the second elastic member is used to provide buffering for deflection of the pedal (52).

7. The bone joint activity rehabilitation auxiliary device according to claim 2, characterized in that: A transverse guide groove (12) is provided on the top of the base (1), and the sliding drive member (11) comprises: a screw rod (111) and a driving motor (112), wherein the screw rod (111) is rotatably connected in the guide groove (12), the sliding seat (3) is threadedly connected to the screw rod (111), the rotating shaft of the driving motor (112) is connected to the screw rod (111), the end of the screw rod (111) close to the support plate (7) is a bare rod section, the screw rod (111) passes through the guide groove (12), the rotating member (72) is a belt transmission mechanism, and the rotating member (72) is respectively connected to the passing end of the screw rod and the rotating shaft (71), and the sliding seat (3) is provided with a reset member, which is used to drive the sliding seat to slide so that the sliding seat (4) is re-engaged with the screw rod (111).

8. The bone joint activity rehabilitation auxiliary device according to claim 7, characterized in that: The bottom of the guide groove (12) is provided with a connection hole that passes through the base (1); the reset member is a pull rope that passes through the connection hole and extends outside the base (1); and a pull ring is provided at the protruding end of the reset member.

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