Exercise rehabilitation device for treating hip fracture of old people

Abstract

The invention discloses an exercise rehabilitation device for treating hip fracture of old people in the technical field of medical care, which comprises two back waist fixing plates and a plurality of waist fixing belts, one end of each waist fixing belt is fixedly connected to one back waist fixing plate, and the other end of each waist fixing belt is detachably connected to the other back waist fixing plate. The adjusting assembly is used for adjusting the distance between the two back waist fixing plates, one side of each back waist fixing plate is fixedly connected with a connecting assembly, and each connecting assembly is provided with an auxiliary assembly used for limiting the bending amplitude of the thighs of the patient; the connecting assemblies are in sliding fit with resistance assemblies used for limiting adduction and inward rotation of hip joints of a patient. When the patient is subjected to rehabilitation training, the movement angle of the hip joint of the patient is limited, and reverse thrust is provided for the patient based on leg movement during inward rotation of the patient, so that the inward rotation action of the hip joint of the patient is limited within a reasonable range, and the problem of prosthesis dislocation or fracture redisplacement caused by improper action is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care, and particularly to an exercise rehabilitation device for the treatment of hip fractures in the elderly. Background Art

[0002] Hip fractures in the elderly refer to fractures of the hip bones (including the femoral neck, intertrochanteric region, etc.) in the elderly aged 65 and above due to falls, trauma, or other reasons. Such fractures are relatively common in the elderly population, especially in patients with osteoporosis. The consequences of hip fractures in the elderly can be very serious, including long-term bedridden, increased risk of complications, decreased quality of life, and even increased mortality.

[0003] The treatment of hip fractures in the elderly usually includes surgical and non-surgical methods. Surgical treatments include internal fixation, artificial joint replacement, etc., aiming to restore the patient's mobility as soon as possible and reduce complications. Non-surgical treatments may include traction, drug treatment, etc., which are applicable to certain specific situations. Preventive measures for hip fractures in the elderly include improving the home environment, increasing physical activity, having a reasonable diet, drug treatment for osteoporosis, etc. Through these measures, the risk of hip fractures in the elderly can be reduced.

[0004] In the prior art, a patent with the authorized publication number of CN118807170A discloses a rapid rehabilitation assistance training device for the treatment of hip fractures, including a lumbar posterior connecting plate. Installation connecting plates are arranged on both sides of the lumbar posterior connecting plate. The free ends of the installation connecting plates are connected with waist fixing belts. A rotatable disk that can rotate vertically is rotatably connected to the outside of the installation connecting plates. Multiple L-shaped elastic resistance strips are arranged downward on the outside of the installation connecting plates. A strip-shaped slot is arranged on the inner side of the rotatable disk, and a U-shaped insert is inserted into the strip-shaped slot; a limiting ring is arranged on the outside of the rotatable disk, and a connecting collar is rotatably connected to the limiting ring. A connecting arm is arranged outward from the connecting collar, and an arc-shaped thigh sleeve that can cover the front side of the thigh is arranged at the free end of the connecting arm. A support shaft is arranged outward from the middle of the rotatable disk to the limiting ring, and the free end of the support shaft is rotatably connected to a knob. A resistance torsion spring is arranged in the limiting ring. This device can meet the training needs of various hip joint parts, and its structure is simple and the cost is low, but there are fewer safety restrictions during movement.

[0005] In the rehabilitation of hip fractures in the elderly, preventing hip adduction and internal rotation is the core goal in the early postoperative period (especially after artificial joint replacement). Improper movements are likely to cause prosthesis dislocation or fracture re-displacement. There are no corresponding protective measures in the prior art and the above-mentioned device to restrict the movement of the elderly's hip joints during rehabilitation exercises, reduce the degree of hip adduction or internal rotation, and keep the movement amplitude within an appropriate range.

[0006] Therefore, the present invention provides an exercise rehabilitation device for the treatment of hip fractures in the elderly to solve the above problems. Summary of the Invention

[0007] To solve the above problems, the present invention provides an exercise rehabilitation device for the treatment of hip fractures in the elderly. When the patient is undergoing rehabilitation training, the movement angle of the patient's hip joint is restricted, and based on the leg movement during its internal rotation, a reverse thrust is provided to limit the internal rotation movement of the patient's hip joint within a reasonable range, so as to avoid problems such as prosthesis dislocation or fracture re-displacement caused by improper movements.

[0008] To achieve the above object, the technical solution of the present invention is as follows: An exercise rehabilitation device for the treatment of hip fractures in the elderly includes two rear waist fixing plates and a plurality of waist fixing belts. One end of each waist fixing belt is fixedly connected to one rear waist fixing plate, and the other end of each waist fixing belt is detachably connected to the other rear waist fixing plate. It also includes an adjustment component for adjusting the distance between the two rear waist fixing plates. A connection component is fixedly connected to one side of each rear waist fixing plate, and an auxiliary component for limiting the bending amplitude of the patient's thigh is provided on each connection component; A resistance component for restricting the adduction and internal rotation of the patient's hip joint is slidably fitted on each connection component;

[0009] Each resistance component includes a plurality of arc-shaped chutes, a moving block is slidably fitted inside each arc-shaped chute, and a push rod is fixedly connected to one end of each moving block; A plurality of extrusion cavities corresponding to the arc-shaped chutes one by one are formed inside each connection component. The end of the push rod far from the moving block extends into the extrusion cavity and is fixedly connected to a piston. One end of each piston is fixedly connected to a spring, and one end of each spring is fixedly connected to the inner wall of the extrusion cavity. One end of each extrusion cavity is communicated with an air delivery pipe.

[0010] Principle of the basic solution: When the patient is undergoing rehabilitation training, the movement angle of the patient's hip joint is restricted by the auxiliary component, and at the same time, the adduction movement of the patient's hip joint is restricted; When the patient makes an internal rotation movement, the resistance component provides a reverse thrust based on the leg movement during its internal rotation, so as to limit the internal rotation movement of the patient's hip joint within a reasonable range, so as to avoid problems such as prosthesis dislocation or fracture re-displacement caused by improper movements.

[0011] The adoption of the above scheme has the following beneficial effects: The rehabilitation device of the present invention realizes all-round dynamic protection for the rehabilitation training of elderly patients with hip fractures through a multi-component linkage mechanism, and its core advantages are reflected in three aspects. First, through the synergistic effect of the auxiliary component and the resistance component, a two-way dynamic constraint mechanism is formed when the patient performs hip joint activities: the auxiliary component precisely controls the flexion angle of the hip joint in a rigid limiting manner to avoid the prosthesis load imbalance caused by excessive forward inclination; while the resistance component automatically generates a progressive reverse force when the patient's internal rotation action exceeds the preset threshold through the mechanical feedback of sliding fit, which not only allows the patient to perform active training within a safe range, but also can timely inhibit abnormal internal rotation torque, effectively reducing the risk of secondary injury to the joint capsule. Second, the adjustable waist fixing system and modular design significantly improve the adaptability. The spacing adjustment function of the two rear waist fixing plates can be compatible with the lumbar physiological curvature of patients with different body types. Combined with the flexible fixing belts distributed at multiple points, it not only ensures the stability of the torso but also avoids local compression, especially suitable for long-term wearing by osteoporosis patients. In addition, through the combined application of the hinge structure and the sliding component, the device realizes the hierarchical control of multi-axial activities of the hip joint. The flexion and extension training of the patient in the sagittal plane and the rotation training in the horizontal plane can respectively receive differential limiting protection. This directional control mechanism not only ensures the rehabilitation effect but also significantly improves the physiological compliance of the training actions, helping to reconstruct a biomechanically compliant movement pattern. The overall design takes into account the dual needs of medical protection and functional recovery, providing a reliable guarantee for early postoperative rehabilitation.

[0012] Furthermore, the adjusting component includes a plurality of main connecting rods and a plurality of secondary connecting rods that are slidably engaged with the main connecting rods. One side of the two rear waist fixing plates close to each other is fixedly connected to the main connecting rod and the secondary connecting rod respectively.

[0013] Beneficial effects: The sliding main and secondary rod structure of the adjusting component enables the distance between the two rear waist fixing plates to be flexibly adapted to the waist circumference sizes of different patients through two-way telescopic adjustment. The main connecting rod provides rigid support to maintain the overall stability of the device, and the sliding groove design of the secondary connecting rod enables stepless adjustment, which can not only closely fit the waist curve of thin patients but also be extended to the body characteristics of obese patients.

[0014] Furthermore, the connecting components all include a first connecting rod fixedly connected to the rear waist fixing plate. The first connecting rod is hinged with a second connecting rod, and an arc-shaped plate is fixedly connected to one end of the second connecting rod far away from the first connecting rod;; arc-shaped sliding grooves are arrayed along the length direction of the arc-shaped plate, and extrusion cavities are all opened inside the arc-shaped plate.

[0015] Beneficial effects: The double-link hinge structure of the connecting component realizes dynamic angle adaptation in hip joint rehabilitation training through multi-degree-of-freedom motion design. The hinge cooperation between the first link and the second link forms an adjustable transmission mechanism, which can not only follow the natural movement trajectory during the flexion and extension of the patient's hip, but also provide a uniform support force distribution through the fitting of the arc plate with the curved surface on the outside of the thigh. While ensuring the motion accuracy of the auxiliary component, this structure reduces the rigid collision during joint movement through a flexible buffering mechanism, especially adapting to the limb swing deviation caused by muscle atrophy in elderly patients. The streamlined covering design of the arc plate can synchronously disperse the concentrated pressure of traditional braces on the greater trochanter of the femur, reducing the risk of soft tissue wear caused by long-term training.

[0016] Furthermore, the auxiliary component includes an adjustment knob for adjusting the rotation angle range of the first link and the second link, and the adjustment knob is arranged at the hinge joint of the first link and the second link.

[0017] Beneficial effects: The adjustment knob realizes precise dynamic control of the hip joint flexion and extension angles. Its step-by-step locking function can set the activity threshold according to the patient's rehabilitation stage. During training, it can not only prevent the prosthesis impact caused by sudden over-flexion, but also allow the joint range of motion to be gradually expanded within a safe range.

[0018] Furthermore, the angle adjustment range between the first link and the second link is 0° to 60°.

[0019] Beneficial effects: This angle adjustment range precisely matches the phased needs of hip joint rehabilitation after surgery. By gradually expanding the range of motion, it can not only maintain the safety protection during the early bedridden period, but also meet the functional requirements of the mid-term sitting and standing training. During the adjustment process, the limit mechanism and the joint capsule tension form a dynamic balance, preventing the risk of prosthesis impact caused by excessive flexion, and at the same time ensuring that the patient obtains continuous biomechanical support during the transition from passive movement to active training, significantly improving the controllability of the rehabilitation process.

[0020] Furthermore, the resistance components also each include two airbag components for applying resistance to the inner side of the patient's thigh, and the airbag components are respectively connected to the corresponding air pipes; a fixed bracket is fixedly connected to the side of the moving block away from the arc-shaped chute, and straps are arranged on the fixed brackets.

[0021] Beneficial effects: The hydrodynamic feedback system of the resistance component forms an adaptive dynamic resistance regulation mechanism through the real-time conversion of mechanical energy and air pressure. When the patient's leg rotates internally, the displacement of the moving block along the arc-shaped chute drives the piston to compress the spring, and simultaneously injects the gas in the extrusion cavity into the corresponding side airbag through the air pipe, generating a gradient pressure feedback that is positively correlated with the internal rotation angle. This design breakthroughly converts the mechanical sliding amount into a biocompatible air pressure resistance. While restricting the abnormal internal rotation angle, it realizes the flexible buffering of the contact pressure through the soft tissue deformation characteristics of the airbag layer. The antagonistic layout of the double airbag layer can intelligently balance the tension difference between the bilateral muscle groups, especially adapting to the internal rotation muscle strength imbalance existing after femoral neck fracture surgery. Besides the core function of preventing prosthesis dislocation, it also has the rehabilitation value of promoting the reconstruction of proprioception.

[0022] Further, each airbag component includes a support plate slidably connected to one side of the lower back fixing plate. One ends of the support plates close to each other are fixedly connected with arc-shaped baffles, and airbag layers are arranged on the sides of the arc-shaped baffles away from each other; when the airbag layer is in the inflated state, the width of the upper end of the airbag layer is always greater than that of the lower end, and the difference between the two increases with the inflation degree of the airbag layer.

[0023] Beneficial effects: The special-shaped inflation design of the airbag component realizes the three-dimensional dynamic adaptation to the medial thigh muscle group through bionic fluid pressure distribution. The wedge-shaped inflation structure with a wider upper part and a narrower lower part of the airbag layer can synchronously fit the anatomical directions of the gracilis muscle and the adductor muscle group during inflation. The wide upper section covers the proximal muscle belly to provide the main resistance surface, and the narrowed lower part avoids the popliteal nerve and blood vessels. The slide rail adjustment mechanism of the support plate enables the arc-shaped baffle to slide and position along the axis from the patient's ischial tuberosity to the middle of the femur, ensuring that the airbag pressure acts precisely on the mechanical fulcrum of the internal rotation moment. This structure breaks through the two-dimensional compression mode of the traditional annular restraint belt. While restricting abnormal internal rotation, it reduces the risk of circulatory compression in the perineum and femoral artery regions through the gradient decompression design, especially adapting to the long-term wearing needs of elderly patients with peripheral vascular diseases.

[0024] Further, it further includes a sponge layer, and both ends of the sponge layer are fixedly connected to the opposite sides of the lower back fixing plate respectively.

[0025] Beneficial effects: The elastic buffer structure of the sponge layer forms an adaptive fit to the lumbar physiological curvature while ensuring the fixing stability through the optimization of the pre-pressure distribution. Its open-hole base material generates a gradient deformation during longitudinal stretching, which can not only absorb the shear stress during lumbar lateral flexion but also reduce the accumulation of heat and humidity through the pore breathing effect, effectively preventing pressure injuries caused by long-term wearing.

[0026] Further, the springs are all non-linear springs.

[0027] Beneficial effects: The variable stiffness characteristic of the non-linear spring realizes the intelligent gradient response of the resistance, and its progressive compression curve precisely matches the biomechanical characteristics of the internal rotator muscles in the human body. The relatively low elastic modulus in the initial stage allows the patient to start training with a relatively small muscle force, avoiding micro-injuries to the joint capsule caused by sudden loading; as the internal rotation angle increases, the spring stiffness climbs non-linearly and forms an exponentially increasing dynamic barrier when approaching the safety threshold.

[0028] Furthermore, anti-slip patterns are provided on the surface of the airbag layer.

[0029] Beneficial effects: The anti-slip pattern surface of the airbag layer significantly improves the dynamic reaction force transfer efficiency during the internal rotation movement through the directional friction enhancement mechanism.

[0030] The additional aspects and advantages of the present invention will be partly given in the following description, partly become apparent from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0031] Figure 1 is the overall front axonometric view of the embodiment of the exercise rehabilitation device for the treatment of elderly hip fractures of the present invention;

[0032] Figure 2 is the overall bottom top view of the embodiment of the exercise rehabilitation device for the treatment of elderly hip fractures of the present invention;

[0033] Figure 3 is the overall front axonometric view of the embodiment of the exercise rehabilitation device for the treatment of elderly hip fractures of the present invention;

[0034] Figure 4 is the enlarged view of part A of the embodiment of the exercise rehabilitation device for the treatment of elderly hip fractures of the present invention;

[0035] Figure 5 is the front sectional view of the inflation assembly of the embodiment of the exercise rehabilitation device for the treatment of elderly hip fractures of the present invention.

[0036] The reference numerals in the drawings of the specification include: 1, rear waist fixing plate; 2, first connecting rod; 3, second connecting rod; 4, arc-shaped chute; 5, arc-shaped plate; 6, fixed bracket; 7, strap; 8, adjusting knob; 9, sponge layer; 10, support plate; 11, main connecting rod; 12, sub-connecting rod; 13, moving block; 14, push rod; 15, spring; 16, extrusion cavity; 17, arc-shaped baffle; 18, airbag layer; 19, air delivery pipe. Detailed Embodiments

[0037] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] The following will be further described in detail through specific embodiments:

[0041] Embodiment 1:

[0042] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 : An exercise rehabilitation device for the treatment of hip fractures in the elderly, including two rear waist fixing plates 1 and a plurality of waist fixing belts. One end of each waist fixing belt is fixedly connected to one rear waist fixing plate 1, and the other end of each waist fixing belt is loop-connected to the other rear waist fixing plate 1. When in use, the two rear waist fixing plates 1 are firmly fixed to the patient's waist through the waist fixing belts.

[0043] Since it is necessary to adapt to patients with different body types (different waist circumferences), an adjustment component for adjusting the distance between the two rear waist fixing plates 1 is further included. Specifically, the adjustment component includes a plurality of main connecting rods 11 and a plurality of sub-connecting rods 12 that are slidably matched with the main connecting rods 11. The two sides of the rear waist fixing plates 1 close to each other are respectively fixedly connected to the main connecting rods 11 and the sub-connecting rods 12. Secondly, after the main connecting rods 11 and the sub-connecting rods 12 slide, they are tightened and fixed by corresponding locking nuts (asFigure 2 As shown, the distance between the two lower back fixing plates 1 is adjusted by the relative sliding of the main connecting rod 11 and the auxiliary connecting rod 12, so as to adapt to most people.

[0044] For elderly patients during hip fracture rehabilitation, doctors will let the elderly patients perform appropriate simple leg exercises, such as: ankle pump exercise, pendulum leg exercise, and walking with the help of a walker, etc. The exercise difficulty is gradually increased according to the rehabilitation time (depending on the postoperative time). When the elderly patients are training, in order to prevent accidents from causing strenuous movement at the hip joint and affecting subsequent rehabilitation, connection components are fixedly connected to one side of each of the lower back fixing plates 1. Specifically, each connection component includes a first connecting rod 2 integrally formed with the lower back fixing plate 1. Each first connecting rod 2 is hinged with a second connecting rod 3. One end of the second connecting rod 3 far from the first connecting rod 2 is fixedly connected with an arc-shaped plate 5 by screws (as Figure 1 and Figure 2 shown). At the same time, an auxiliary component for limiting the bending amplitude of the patient's thigh is provided at the hinge joint of the second connecting rod 3 and the first connecting rod 2. Specifically, the auxiliary component includes an adjustment knob 8 for adjusting the rotation angle range of the first connecting rod 2 and the second connecting rod 3. The adjustment knob 8 is arranged at the hinge joint of the first connecting rod 2 and the second connecting rod 3. The angle adjustment range of the first connecting rod 2 and the second connecting rod 3 is 0° to 60°.

[0045] During the rehabilitation of elderly hip fractures (in the early postoperative period), excessive adduction and internal rotation of the hip joint are likely to cause prosthesis dislocation or fracture re-displacement. Within 6 weeks after surgery, the soft tissues around the hip joint have not healed. Adduction (crossing the legs) or internal rotation (tipping the toes excessively towards the inside) will cause abnormal stress on the joint capsule or prosthesis, increasing the risk of dislocation. At the same time, due to pain or insufficient muscle strength, elderly patients are difficult to actively control the range of joint movement. Therefore, resistance components for restricting the adduction and internal rotation of the patient's hip joint are slidably fitted on the mutually approaching sides of the arc-shaped plates 5.

[0046] Specifically, each resistance component includes a plurality of arc-shaped sliding grooves 4 arrayed along the length direction of the arc-shaped plate 5. Each arc-shaped sliding groove 4 is slidably fitted with a moving block 13. One end of each moving block 13 is fixedly connected with a push rod 14. A plurality of extrusion cavities 16 corresponding to the arc-shaped sliding grooves 4 one by one are opened inside each arc-shaped plate 5. One end of the push rod 14 far from the moving block 13 extends into the extrusion cavity 16 and is fixedly connected with a piston. One end of each piston is fixedly connected with a spring 15. Each spring 15 is a non-linear spring 15. One end of each spring 15 is fixedly connected to the inner wall of the extrusion cavity 16. One end of each extrusion cavity 16 is communicated with an air delivery pipe 19;

[0047] It also includes two airbag assemblies for applying resistance to the inner thighs of the patient. The airbag assemblies are respectively communicated with the corresponding air pipes 19. Each airbag assembly includes a support plate 10 slidably connected to one side of the lower back fixing plate 1. One ends of the support plates 10 close to each other are fixedly connected with arc-shaped baffles 17. Airbag layers 18 are arranged on the sides of the arc-shaped baffles 17 away from each other. Anti-slip patterns are arranged on the surfaces of the airbag layers 18; when the airbag layers 18 are in an inflated state, the width of the upper end of the airbag layer 18 is always greater than that of the lower end, and the difference between the two increases with the inflation degree of the airbag layer 18; fixed brackets 6 are fixedly connected to the sides of the moving blocks 13 away from the arc-shaped chutes 4, and straps 7 are arranged on the fixed brackets 6.

[0048] For the prevention of excessive adduction of the hip joint, the patient's legs can be fixed on the fixed brackets 6 through the straps 7, so that the patient's legs and the two arc-shaped plates 5 temporarily form a whole. As Figure 1 shown, the lateral movement of the arc-shaped plate 5 is restricted due to the structural design, thereby restricting the adduction movement of the hip joint of the elderly patient.

[0049] For the restriction of the internal rotation movement of the hip joint of the elderly patient, the device realizes intelligent regulation through the dual mechanisms of dynamic fluid resistance and mechanical linkage. When the patient attempts to perform an internal rotation movement (such as excessive turning of the toes towards the inside), the movement of the leg will trigger the following chain reaction:

[0050] When the patient's leg rotates internally, the strap 7 fixed to the outside of the thigh drives the moving block 13 to slide along the arc-shaped chute 4 towards the center of the hip joint. The displacement of the moving block 13 pushes the piston in the extrusion cavity 16 to stretch the non-linear spring 15 through the push rod 14, and at the same time, the gas in the cavity is pressed into the corresponding airbag layer 18 through the air pipe 19. In this process, the progressive stiffness characteristic of the spring 15 makes the resistance mild in the initial stage, avoiding muscle strain caused by sudden braking.

[0051] The inflated airbag layer 18 presents a wedge-shaped inflation form with a wider upper part and a narrower lower part: the wide upper area accurately covers the junction of the gracilis muscle and the adductor muscle group, and through the directional friction between the anti-slip pattern surface and the skin, the pressure of the airbag layer 18 is converted into a tangential resistance opposite to the direction of internal rotation; the narrowed lower structure avoids the popliteal fossa neurovascular area and only exerts a moderate restraint on the distal tendon. The pressure of the airbag layer 18 increases exponentially with the increase of the internal rotation angle and reaches the peak pressure when approaching the safety threshold (such as when the internal rotation exceeds 6°), forming a physical action block.

[0052] When the patient continuously applies force in an attempt to break through the limit, the stiffness jump of the non-linear spring 15 causes a sudden increase in the resistance to the piston movement, simultaneously enhancing the inflation rate of the airbag. At this time, the support plate 10 adaptively adjusts its position along the sliding track of the lower back fixing plate 1, causing the airbag pressure to act concentratedly on the anatomical fulcrum of the internal rotation moment (the area connecting the ischial tuberosity and the lesser trochanter of the femur). Through the biomechanical lever effect, the braking effect of the resistance is amplified. This process forms a closed-loop regulation of "mechanical compression - air pressure conduction - soft tissue impedance", ensuring that abnormal internal rotation is inhibited within a deviation range of 3 - 5°.

[0053] Embodiment 2:

[0054] The difference from the above embodiment is that, as shown in the attached Figure 1 and Figure 2 figures, it further includes a sponge layer 9. Both ends of the sponge layer 9 are fixedly connected to the opposite sides of the lower back fixing plate 1 respectively. Its biaxial stretching property enables the sponge layer 9 to synchronously generate elastic deformation (0.5 - 15 cm) when the distance between the two lower back fixing plates 1 is adjusted, not only maintaining continuous contact with the patient's waist but also avoiding stress concentration caused by excessive stretching of traditional elastic bands. At the same time, when the patient performs forward flexion training, the sponge layer 9 can also absorb 40% - 60% of the shear force through the hysteretic compression effect, significantly reducing the abnormal load on the intervertebral disc.

[0055] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. An exercise rehabilitation device for the treatment of hip fractures in the elderly, comprising two rear waist fixing plates (1) and a number of waist fixing straps. One end of each waist fixing strap is fixedly connected to one rear waist fixing plate (1), and the other end of each waist fixing strap is detachably connected to the other rear waist fixing plate (1). It is characterized in that, It further includes an adjusting component for adjusting the distance between the two lower back fixing plates (1). A connecting component is fixedly connected to one side of each lower back fixing plate (1), and an auxiliary component for defining the bending amplitude of the patient's thighs is provided on each connecting component; a resistance component for restricting the adduction and internal rotation of the patient's hip joints is slidably fitted on each connecting component; The resistance components each include a plurality of arc-shaped chutes (4), and a moving block (13) is slidably fitted inside each arc-shaped chute (4). One end of each moving block (13) is fixedly connected to a push rod (14); a plurality of extrusion cavities (16) corresponding to the arc-shaped chutes (4) one by one are formed inside each connecting component. One end of the push rod (14) away from the moving block (13) extends into the extrusion cavity (16) and is fixedly connected to a piston. One end of each piston is fixedly connected to a spring (15), and one end of each spring (15) is fixedly connected to the inner wall of the extrusion cavity (16). One end of each extrusion cavity (16) communicates with an air delivery pipe (19).

2. The exercise and rehabilitation device for the treatment of elderly hip fractures according to claim 1, wherein: The adjusting component includes a plurality of main connecting rods (11) and a plurality of secondary connecting rods (12) slidably fitted with the main connecting rods (11). One side of the two lower back fixing plates (1) close to each other is fixedly connected to the main connecting rod (11) and the secondary connecting rod (12) respectively.

3. The exercise and rehabilitation device for the treatment of elderly hip fractures according to claim 2, wherein: The connecting components each include a first connecting rod (2) fixedly connected to the lower back fixing plate (1). The first connecting rod (2) is hinged to a second connecting rod (3). One end of the second connecting rod (3) away from the first connecting rod (2) is fixedly connected to an arc-shaped plate (5); the arc-shaped chutes (4) are arranged in an array along the length direction of the arc-shaped plate (5), and the extrusion cavities (16) are formed inside the arc-shaped plate (5).

4. The exercise and rehabilitation device for the treatment of hip fractures in the elderly according to claim 3, characterized in that: The auxiliary component includes an adjusting knob (8) for adjusting the rotation angle range of the first connecting rod (2) and the second connecting rod (3). The adjusting knob (8) is arranged at the hinge joint of the first connecting rod (2) and the second connecting rod (3).

5. The exercise rehabilitation device for treating elderly hip fractures according to claim 4, wherein: The angle adjustment range of the first connecting rod (2) and the second connecting rod (3) is 0° to 60°.

6. The exercise and rehabilitation device for the treatment of hip fractures in the elderly according to claim 5, wherein: The resistance component further includes two airbag components for applying resistance to the inner sides of the patient's thighs. The airbag components are respectively communicated with the corresponding air delivery pipes (19); a fixing bracket (6) is fixedly connected to one side of each moving block (13) away from the arc-shaped chute (4), and a strap (7) is arranged on each fixing bracket (6).

7. The exercise and rehabilitation device for treating hip fractures in the elderly according to claim 6, wherein: Each airbag component includes a support plate (10) slidably connected to one side of the lower back fixing plate (1). One end of the support plates (10) close to each other is fixedly connected to an arc-shaped baffle (17). An airbag layer (18) is arranged on one side of the arc-shaped baffle (17) away from each other; when the airbag layer (18) is in an inflated state, the width of the upper end of the airbag layer (18) is always greater than the width of the lower end, and the difference between the two increases with the inflation degree of the airbag layer (18).

8. The exercise rehabilitation device for treating elderly hip fractures according to claim 7, wherein: It further includes a sponge layer (9). Both ends of the sponge layer (9) are fixedly connected to the opposite sides of the lower back fixing plate (1) respectively.

9. The exercise and rehabilitation device for treating elderly hip fractures according to claim 8, wherein: The springs (15) are all non-linear springs (15).

10. The exercise and rehabilitation device for the treatment of hip fractures in the elderly according to claim 9, characterized in that, The surface of the airbag layer (18) is provided with anti-slip lines.

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