A rehabilitation treatment device for knee osteoarthritis

Abstract

The present application relates to the technical field of knee joint rehabilitation equipment, and is a rehabilitation treatment device for knee joint osteoarthritis, comprising a treatment bed, two foot fixing assemblies and two first driving assemblies. The top surface of the first end of the treatment bed is provided with a backrest, and the top surface of the second end of the treatment bed is provided with two guide grooves, and the two foot fixing assemblies are arranged in the two guide grooves respectively. The inside of the treatment bed is provided with an assembly cavity, and the two first driving assemblies are arranged in the assembly cavity, and the output ends of the two first driving assemblies are connected with the two foot fixing assemblies respectively. When the present application is used, not only the posture of the patient can be standardized, but also uniform and appropriate force joint traction can be implemented, safe joint surface separation and effective treatment can be realized, and the rehabilitation speed of the knee joint of the patient can be accelerated. The present application aims to help patients with knee osteoarthritis to increase the range of motion of the knee joint, release the joint negative pressure, relieve pain and improve the quality of life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knee joint rehabilitation equipment, in particular to a rehabilitation treatment device for knee joint osteoarthritis. BACKGROUND

[0002] The knee joint is a weight-bearing joint of the human body, and the prevalence rate of knee joint osteoarthritis in China is 8.1%. Patients mainly show different degrees of knee joint pain, swelling, deformity, and limited activity. Late-stage patients will have persistent joint pain and decreased activity. The cartilage of the knee joint is prone to wear, and joint strain and degenerative changes in the soft tissue around the joint are the main causes of knee arthritis.

[0003] The current clinical treatment for osteoarthritis is to relieve pain, and knee joint traction technology has a significant improvement effect on patient pain. The commonly used knee joint traction device relaxes the local muscles of the knee joint to a great extent, prevents adhesion of the soft tissue around the joint, maintains or restores normal joint alignment, and increases the stability of the knee joint by directly or indirectly reflecting muscle excitability, thereby playing a good rehabilitation role. The resources for rehabilitation treatment are limited, and the physical strength of therapists is limited, so many patients cannot achieve daily professional rehabilitation treatment. At the same time, the operation process of the equipment used for traction is complex, and non-professionals cannot operate independently and correctly.

[0004] The deficiency of the existing knee joint traction device is that patients cannot achieve daily professional rehabilitation treatment by themselves. When completing knee joint traction treatment by themselves, due to unfamiliarity with the anatomical structure of the knee joint and other reasons, incorrect posture and uneven force often occur, resulting in unsatisfactory effect of knee joint traction treatment and delaying the rehabilitation speed of the knee joint. Based on the above reasons, it is particularly important to develop a simple and easy-to-operate professional rehabilitation treatment device for knee joint osteoarthritis. SUMMARY

[0005] The purpose of the present application is to provide a rehabilitation treatment device for knee joint osteoarthritis, which helps knee joint osteoarthritis patients to standardize traction, correctly and uniformly apply traction force, and make the traction operation process more simple and easy when performing knee joint traction, thereby helping patients to relieve pain, speed up the rehabilitation process, and improve the quality of life.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A rehabilitation treatment equipment for knee osteoarthritis, comprising: a treatment bed, the top surface of the first end of the treatment bed is provided with a backrest; two foot fixing assemblies, the top surface of the second end of the treatment bed is provided with two guide grooves, the length extension direction of the guide grooves is parallel to the length extension direction of the treatment bed, two foot fixing assemblies are respectively arranged in the two guide grooves; two first driving assemblies, the inside of the treatment bed is provided with an assembly cavity, two first driving assemblies are arranged in the assembly cavity, and the positions of the two first driving assemblies correspond to the positions of the two guide grooves respectively, the two guide grooves are communicated with the assembly cavity, and the output ends of the two first driving assemblies are connected with the two foot fixing assemblies respectively, and the first driving assembly is used for driving the foot fixing assembly to reciprocate along the length extension direction of the guide groove.

[0007] Preferably, the top surface of the treatment bed and between the two guide grooves is provided with an avoiding channel, the avoiding channel is located on the side of the guide groove close to the backrest, and the two guide grooves are communicated through the avoiding channel; two second driving assemblies are further arranged in the assembly cavity, the output ends of the two second driving assemblies are connected with the two foot fixing assemblies respectively, and the second driving assembly is used for driving the foot fixing assembly to rotate.

[0008] Preferably, the foot fixing assembly comprises: a first supporting plate; a second supporting plate arranged directly above the first supporting plate, the second supporting plate is the same shape as the first supporting plate, and the first end of the second supporting plate is hinged with the first end of the first supporting plate; an electromagnet fixedly arranged on the top surface of the second end of the first supporting plate; a metal plate fixedly arranged on the bottom surface of the second end of the second supporting plate; and a limiting bag fixedly arranged on the top surface of the second end of the second supporting plate.

[0009] Preferably, the first driving assembly comprises: a first electric telescopic rod arranged on the side of the foot fixing assembly close to the backrest; a bearing block, a first sliding groove is arranged on the bottom surface of the assembly cavity, the length extension direction of the first sliding groove is parallel to the length extension direction of the guide groove, the bearing block is arranged in the first sliding groove and can slide along the first sliding groove, and the bearing block is located below the first end of the first supporting plate; a connecting shaft arranged between the first supporting plate and the bearing block, the first end of the connecting shaft is fixedly connected with the first supporting plate, and the second end of the connecting shaft is rotationally connected with the bearing block; the second driving assembly comprises: a gear sleeved on the side wall of the connecting shaft and fixedly connected with the connecting shaft; and a rack arranged on the side away from each other of the two first driving assemblies, the rack is in meshing transmission with the gear.

[0010] Preferably, the second driving assembly further comprises: a bearing plate, the rack is arranged between the bearing plate and the first electric telescopic rod, and is fixedly arranged at the top of the side wall of the bearing plate, a second sliding groove is further arranged on the bottom surface of the assembly cavity, the bottom of the bearing plate is arranged in the second sliding groove and can slide along the second sliding groove, the length extension direction of the second sliding groove is parallel to the length extension direction of the first sliding groove, the length of the avoiding channel is greater than the length of the first bearing plate, the length of the second sliding groove is greater than the length of the guide groove, the distance between the first end of the second sliding groove and the first end of the first sliding groove is smaller than the distance between the second end of the second sliding groove and the second end of the first sliding groove; a threaded rod, a lug plate is arranged on the side wall of the bearing plate away from the first electric telescopic rod, a threaded hole is arranged in the middle of the lug plate, the threaded rod is screwed in the threaded hole, the length extension direction of the threaded rod is parallel to the length extension direction of the second sliding groove, the length of the threaded rod is greater than the length of the second sliding groove, the first end of the threaded rod is rotationally connected with the first support, the second end of the threaded rod is fixedly connected with the output end of the first motor, the first motor is fixedly connected with the second support, and the first support and the second support are both fixedly connected with the bottom surface of the assembly cavity.

[0011] Preferably, a protection assembly is arranged in the guide groove and located at the side of the foot fixing assembly close to the backrest, the protection assembly comprises: a protection plate, a receiving groove is arranged on the inner side wall of the side of the guide groove close to the backrest, the first end of the protection plate extends into the receiving groove and can slide along the receiving groove, the second end of the protection plate abuts against the first end of the first bearing plate, the shape of the second end of the protection plate is matched with the shape of the first end of the first bearing plate, the second end of the protection plate can slide along the guide groove, and the top surface of the first bearing plate is flush with the top surface of the treatment bed; in the width extension direction of the protection plate, limit strips are arranged on both sides of the protection plate, third sliding grooves are arranged on the opposite inner side walls of the receiving groove, the third sliding grooves extend into the receiving groove, and the limit strips extend into the third sliding grooves and can slide along the third sliding grooves; a plurality of springs are arranged in the receiving groove, the length extension direction of the springs is the same as the length extension direction of the protection plate, the first end of the spring is fixedly connected with the inner wall of the receiving groove, and the second end of the spring is fixedly connected with the first end of the protection plate.

[0012] Preferably, the knee electrotherapy assembly is arranged above the treatment bed; the second end of the treatment bed is in a circular arc structure, and a slide rail is arranged on the side wall of the treatment bed and passes through the second end of the treatment bed; the bottom of the position adjusting frame is arranged in the slide rail and can slide along the slide rail; and the third driving assembly is arranged on the top of the position adjusting frame, and the output end of the third driving assembly is connected with the knee electrotherapy assembly and used for driving the knee electrotherapy assembly to move up and down.

[0013] Preferably, the knee electrotherapy assembly comprises a knee fixing sleeve, wherein the top of the knee fixing sleeve is provided with a discharge assembly, and the bottom of the knee fixing sleeve is provided with an opening; a thigh fixing sleeve is arranged on one side of the knee fixing sleeve, and the thigh fixing sleeve comprises a first connecting frame, the first end of the first connecting frame is hingedly connected with the knee fixing sleeve, and the inner side of the second end of the first connecting frame is provided with a first soft pad; and a calf fixing sleeve is arranged on the other side of the knee fixing sleeve, and the calf fixing sleeve comprises a second connecting frame, the first end of the second connecting frame is hingedly connected with the knee fixing sleeve, and the inner side of the second end of the second connecting frame is provided with a second soft pad.

[0014] Preferably, the third driving assembly comprises a second motor fixedly arranged on the top of the position adjusting frame, and the output end of the second motor is fixedly connected with a receiving wheel; a receiving rope is wound on the receiving wheel and fixedly connected with the receiving wheel, the top of the position adjusting frame is provided with a through hole, the second end of the receiving rope passes through the through hole and is rotationally connected with the top surface of a disc, and the bottom surface of the disc is fixedly connected with the knee fixing sleeve.

[0015] Preferably, the middle part of the position adjusting frame is provided with an assembly groove penetrating through the position adjusting frame, and the traction force lifting assembly is arranged in the assembly groove; the traction force lifting assembly comprises a first assembly rod, a sponge sleeve is arranged on the first end of the first assembly rod, and the second end of the first assembly rod is provided with an external thread; a second assembly rod is provided with a threaded groove on the end face of one side of the second assembly rod, the second end of the first assembly rod is screwed in the threaded groove, and the sum of the lengths of the first assembly rod and the second assembly rod is greater than the length of the assembly groove; two limiting rods are arranged on the two sides of the second assembly rod, the side walls on the two sides of the second assembly rod are provided with fourth sliding grooves, the inner side walls on the two sides of the assembly groove are provided with fifth sliding grooves, the length of the fifth sliding groove is greater than the length of the fourth sliding groove, the first ends of the two limiting rods are respectively arranged in the two fourth sliding grooves and can slide along the fourth sliding grooves, and the second ends of the two limiting rods are respectively arranged in the two fifth sliding grooves and can slide along the fifth sliding grooves.

[0016] Compared with the prior art, the application has the beneficial effects that:

[0017] (I) The application can not only standardize the posture of the patient, but also implement uniform and appropriate force joint traction, realize safe joint surface separation and effective treatment, and accelerate the rehabilitation speed of the knee joint of the patient. The first driving assembly can drive the foot fixing assembly to make reciprocating motion, and the second driving assembly can drive the foot fixing assembly to rotate. The application aims to help the knee osteoarthritis patient to standardize the traction, correctly and uniformly apply the traction force, make the traction operation process more simple and easy to operate, help the patient to relieve pain, accelerate the rehabilitation process, and improve the quality of life when the knee joint traction is performed.

[0018] (II) The application further comprises a knee electrotherapy assembly, and the knee electrotherapy assembly comprises a discharge assembly. The discharge assembly has simple structure, small volume and light weight, is convenient to integrate with other equipment, is suitable for various application scenarios such as virtual reality, remote operation, medical rehabilitation and the like, expands the application field of the knee osteoarthritis medical instrument, and combines traditional Chinese medicine iontophoresis, intermediate frequency electrotherapy and static stretching technology, so that the symptoms of knee osteoarthritis are effectively relieved through comprehensive treatment means.

[0019] (III) The application further comprises a traction force lifting assembly, and the traction force lifting assembly comprises a first assembly rod and a sponge sleeve. In the process that the patient performs traction treatment and electrotherapy, the sponge sleeve is stretched into the lower part of the knee of the patient, and when the foot fixing assembly moves to the side close to the backrest, the thigh and the lower leg of the patient can clamp the sponge sleeve. The knee of the patient can obtain more good traction force, the knee joint can be stretched, clicked and released, and the rehabilitation speed of the knee joint of the patient is accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the axonometric view of the application;

[0021] Figure 2 is the front view of the application;

[0022] Figure 3 is the top view of the application;

[0023] Figure 4 is the top view of the treatment bed in the application;

[0024] Figure 5 is the axonometric view of the treatment bed in the application;

[0025] Figure 6 is Figure 5 is the enlarged view of A in the middle;

[0026] Figure 7 is the axonometric view of an angle when the foot fixing assembly in the application is not rotated;

[0027] Figure 8 Another perspective view of the foot fixing assembly in the present application when it is not rotated;

[0028] Figure 9 A perspective view of Figure 8 An enlarged view of B in the middle;

[0029] Figure 10 A perspective view of the foot fixing assembly in the present application after it is rotated;

[0030] Figure 11 A perspective view of the knee electrotherapy assembly in the present application;

[0031] Figure 12 A perspective view of the position adjusting frame, the third driving assembly and the traction force lifting assembly in the present application;

[0032] Figure 13 A perspective view of the position adjusting frame in the present application;

[0033] Figure 14 An exploded perspective view of the traction force lifting assembly in the present application;

[0034] Figure 15 A perspective view of the present application after a patient sits on the treatment bed;

[0035] Figure 16 A perspective view of the present application when a patient is treated on the knee joint.

[0036] Reference signs include:

[0037] 1-treatment bed, 11-backrest, 12-guide slot, 13-assembly cavity, 14-avoidance passage, 15-first sliding groove, 16-second sliding groove, 17-receiving groove, 18-third sliding groove, 19-sliding rail, 2-foot fixing assembly, 21-first supporting plate, 22-second supporting plate, 23-electromagnet, 24-metal plate, 25-limiting bag, 3-first driving assembly, 31-first electric telescopic rod, 32-bearing block, 33-connecting shaft, 4-second driving assembly, 41-gear, 42-rack, 43-bearing plate, 431-protruding plate, 432-threaded hole, 44-threaded rod, 45-first support, 46-first motor, 47-second support, 5-protection assembly, 51-protection plate, 52-limiting strip, 53-spring, 6-knee electrotherapy assembly, 61-knee fixing sleeve, 611-opening, 62-discharge assembly, 63-thigh fixing sleeve, 631-first connecting frame, 632-first soft pad, 64-calf fixing sleeve, 641-second connecting frame, 642-second soft pad, 7-positioning frame, 71-through hole, 72-assembly slot, 73-fifth sliding groove, 8-third driving assembly, 81-second motor, 82-receiving wheel, 83-receiving rope, 84-disc, 9-towing force lifting assembly, 91-first assembly rod, 911-external thread, 92-sponge sleeve, 93-second assembly rod, 931-threaded groove, 932-fourth sliding groove, 94-limiting rod. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0039] Embodiment one

[0040] Please refer to Figures 1-16 The present application provides a technical solution: a rehabilitation treatment device for knee osteoarthritis, comprising a treatment bed 1, two foot fixing assemblies 2 and two first driving assemblies 3. The top surface of the treatment bed 1 is provided with a backrest 11 and two guide slots 12, and the two foot fixing assemblies 2 are arranged in the two guide slots 12 respectively. The inside of the treatment bed 1 is provided with an assembly cavity 13, and the two first driving assemblies 3 are arranged in the assembly cavity 13, and the output ends of the two first driving assemblies 3 are connected with the two foot fixing assemblies 2 respectively.

[0041] Please refer to Figures 1-3 and Figure 15The foot fixing assembly 2 is located in the middle of the guide groove 12 before use. When the invention is used for traction treatment, the patient first sits on the treatment bed 1, the back of the patient is against the backrest 11, then the patient bends both legs, so that the patient's two feet can be stepped on the two foot fixing assemblies 2 respectively, and then the two feet of the patient are limited by the two foot fixing assemblies 2. Please refer to Figures 1-3 and Figure 16 Next, the patient does not need the first drive assembly 3 under the leg of the side that needs traction treatment to work, and drives the foot fixing assembly 2 to move away from the backrest 11, and the foot fixing assembly 2 drives the foot of the side that needs traction treatment to move away from the backrest 11, and when the leg of the side that needs traction treatment is straightened, the first drive assembly 3 of this side stops working. Then the patient sits straight against the backrest 11, and the hands are placed on both sides of the body. It can be seen that the invention can standardize the posture of the patient before starting the traction treatment operation, and avoid injury to the patient.

[0042] Please refer to Figures 1-3 and Figure 16 When traction treatment is performed, the first drive assembly 3 under the leg of the side that needs traction treatment works to drive the foot fixing assembly 2 to move along the guide groove 12 towards the backrest 11, and when the leg of the patient is bent to the limit state, the first drive assembly 3 stops working for 10 to 15 seconds. Then the first drive assembly 3 works again to drive the foot fixing assembly 2 to move along the guide groove 12 away from the backrest 11, and when the foot fixing assembly 2 returns to the middle of the guide groove 12, the first drive assembly 3 stops working. During the entire traction treatment process, the first drive assembly 3 drives the foot fixing assembly 2 to reciprocate five times, and then the patient can move the feet from the foot fixing assembly 2 and leave the treatment bed 1.

[0043] Because the knees of different patients are located on different sides, it is necessary to be able to control and change which side the first drive assembly 3 drives the foot fixing assembly 2 to reciprocate in real time. In the invention, the backrest 11 is provided with a controller (not shown in the controller figure), and the operation state of each component in the invention can be controlled by the control.

[0044] Please refer to Figures 1-4 and Figure 16The top surface of the treatment bed 1 and between the two guide grooves 12 is provided with an avoiding passage 14, and two second driving assemblies 4 are arranged in the assembling cavity 13, and the output ends of the two second driving assemblies 4 are connected with the two foot fixing assemblies 2 respectively. During the movement of the foot fixing assembly 2 along the guide groove 12 to the side of the backrest 11, the second driving assembly 4 can drive the foot fixing assembly 2 to rotate, and then drive the foot of the patient to rotate towards the straightened side of the leg. This operation is helpful for the natural movement of the knee of the patient with knee osteoarthritis, is more effective for opening the knee joint, and can also release the joint pressure. Since the movement of the foot, leg and knee of the patient is driven by the first driving assembly 3 and the second driving assembly 4, the first driving assembly 3 and the second driving assembly 4 can uniformly apply force to complete the traction action of the knee joint compared with the patient himself, and accelerate the recovery speed of the knee joint of the patient.

[0045] Please refer to Figures 1-3 、 Figures 7-8 and Figures 15-16 , the foot fixing assembly 2 comprises a first supporting plate 21, a second supporting plate 22, an electromagnet 23, a metal plate 24 and a limiting bag 25. Please refer to Figures 1-3 and Figures 7-8 , the first driving assembly 3 comprises a first electric telescopic rod 31, a bearing block 32 and a connecting shaft 33. The limiting bag 25 is arranged on the top surface of the second supporting plate 22, and after the patient inserts the front end of the foot into the limiting bag 25, the sole of the patient can be attached to the top surface of the second supporting plate 22, and the limiting bag 25 and the second supporting plate 22 can jointly limit the foot of the patient to prevent the foot of the patient from leaving the foot fixing assembly 2. The second supporting plate 22 is arranged directly above the first supporting plate 21 and is hinged to the first end of the first supporting plate 21. When the leg of the patient needs to be straightened, the electromagnet 23 does not attract the metal plate 24, and the first supporting plate 21 can rotate around the second supporting plate 22. When the leg of the patient needs to be traction treated, the electromagnet 23 attracts the metal plate 24, the first supporting plate 21 is tightly attached to the second supporting plate 22, and the first supporting plate 21 cannot rotate around the second supporting plate 22. When the first driving assembly 3 works, the first electric telescopic rod 31 is telescoped to drive the bearing block 32 to reciprocate in the first sliding groove 15, and then drive the foot fixing assembly 2 to reciprocate through the connecting shaft 33. At this time, the sole of the side of the patient needing treatment is always parallel to the top surface of the treatment bed 1 during the reciprocating movement, which further standardizes the posture of the patient.

[0046] Please refer to Figures 1-3 、 Figures 7-10 and Figure 16The second driving assembly 4 comprises a gear 41 and a rack 42. The gear 41 is sleeved on the side wall of the connecting shaft 33, and a distance exists between the gear 41 and the rack 42. When the first electric telescopic rod 31 is shortened to drive the bearing block 32 to move towards the side of the backrest 11, the gear 41 does not contact the rack 42, so that the foot fixing assembly 2 cannot rotate when the foot fixing assembly 2 is not completely moved to the position of the avoiding channel 14. When the foot fixing assembly 2 is moved to the position of the avoiding channel 14, the gear 41 contacts the rack 42, so that the gear 41 rotates along with the foot fixing assembly 2 towards the side of the backrest 11, but the rack 42 is fixed, so that the rack 42 drives the gear 41 to rotate, and then drives the foot fixing assembly 2 to rotate, and finally drives the patient's foot to rotate towards the straight leg.

[0047] Please refer to Figures 7-10 and Figure 16 The second driving assembly 4 comprises a bearing plate 43, a threaded rod 44, a first support 45, a first motor 46 and a second support 47. Because different patients have different leg lengths, the moving range of the foot following the foot fixing assembly 2 needs to be adjusted according to the needs. The rack 42 is fixed on the top of the bearing plate 43, the bottom of the bearing plate 43 is arranged in the second sliding groove 16, and the length of the second sliding groove 16 is greater than the length of the guide groove 12. Therefore, when the bearing plate 43 slides to the farthest end near the side of the backrest 11 in the second sliding groove 16, no matter how the foot fixing assembly 2 moves in the guide groove 12 driven by the first driving assembly 3, the foot fixing assembly 2 will not rotate, and the present application can adapt to the leg length of each patient before starting the traction treatment.

[0048] When the adaptation process of the foot fixing assembly 2 is completed, the first motor 46 drives the threaded rod 44 to rotate. Because the threaded rod 44 is screwed in the threaded hole 432 in the middle of the convex plate 431, the threaded rod 44 drives the convex plate 431 to reciprocate, and then drives the bearing plate 43 to reciprocate in the second sliding groove 16, and finally drives the rack 42 to move to a suitable position, so that the gear 41 can contact the rack 42 and drive the foot fixing assembly 2 to rotate, through the forward rotation and reverse rotation of the first motor 46. The first support 45 and the second support 47 are fixedly connected with the bottom surface of the assembly cavity 13, so that the first motor 46 and the threaded rod 44 are fixed in the treatment bed 1, and the second driving assembly 4 does not change the position when the gear 41 contacts the rack 42.

[0049] Please refer to Figures 1-6 and Figures 15-16The guiding groove 12 is provided with a protection assembly 5. The protection assembly 5 comprises a protection plate 51, two limiting strips 52 and a plurality of springs 53. When the foot fixing assembly 2 is located at the middle part of the guiding groove 12, the protection assembly 5 can block the guiding groove 12 on the side of the foot fixing assembly 2 close to the backrest 11, so as to prevent the clothes or trousers of the patient from entering the assembly cavity 13 and prevent the clothes or trousers of the patient from being scratched by the first driving assembly 3 or the second driving assembly 4. The inner side wall of the guiding groove 12 is provided with a receiving groove 17, and the plurality of springs 53 are arranged in the receiving groove 17. The first end of the protection plate 51 extends into the receiving groove 17, and the second end of the protection plate 51 abuts against the first end of the first supporting plate 21. When the first electric telescopic rod 31 is shortened and drives the foot fixing assembly 2 to move towards the side of the backrest 11, the first supporting plate 21 pushes the protection plate 51 into the receiving groove 17, the first supporting plate 21 applies pressure to the plurality of springs 53, and the plurality of springs 53 are shortened to store elastic potential energy. When the first electric telescopic rod 31 is lengthened and drives the foot fixing assembly 2 to move away from the side of the backrest 11, the plurality of springs 53 release the elastic potential energy to be lengthened, the plurality of springs 53 push the protection plate 51 to reset, and the protection plate 51 can still abut against the first supporting plate 21 and block the guiding groove 12.

[0050] Please refer to Figures 4-6 The two limiting strips 52 are fixedly arranged on the two sides of the protection plate 51, respectively. The opposite two inner side walls of the receiving groove 17 are provided with third sliding grooves 18, and the limiting strips 52 extend into the third sliding grooves 18. Through the limiting strips 52, the support force can be provided for the protection plate 51. When the protection plate 51 slides along the receiving groove 17 and the guiding groove 12, the limiting strips 52 slide along the third sliding grooves 18.

[0051] Embodiment two

[0052] Please refer to Figures 1-3 , Figure 5 and Figures 15-16 On the basis of the embodiment one, the knee electrotherapy assembly 6, the position adjusting frame 7, the third driving assembly 8 and the traction force increasing assembly 9 are further included. The side wall of the treatment bed 1 is provided with a sliding rail 19, and the bottom of the position adjusting frame 7 is arranged in the sliding rail 19. The position adjusting frame 7 can slide along the sliding rail 19 to change the position. The knee electrotherapy assembly 6, the third driving assembly 8 and the traction force increasing assembly 9 are arranged on the position adjusting frame 7. The knee electrotherapy assembly 6 can discharge to treat the knee joint of the patient. The third driving assembly 8 can drive the knee electrotherapy assembly 6 to move up and down. The traction force increasing assembly 9 can enhance the traction force of the patient during traction treatment.

[0053] Please refer to Figures 1-2 , Figure 11 and Figures 15-16The knee electrotherapy assembly 6 includes a knee fixing sleeve 61, a discharge assembly 62, a thigh fixing sleeve 63, and a calf fixing sleeve 64. The thigh fixing sleeve 63 includes a first connecting frame 631 and a first soft pad 632. The calf fixing sleeve 64 includes a second connecting frame 641 and a second soft pad 642. The first connecting frame 631 and the calf fixing sleeve 64 are respectively formed by splicing a plurality of light aluminum alloy supports. After the patient sits on the treatment bed 1, the third driving assembly 8 drives the knee electrotherapy assembly 6 to move downward until the knee electrotherapy assembly 6 falls on the treatment bed 1. Then the patient picks up the knee electrotherapy assembly 6, and sequentially puts the foot needing traction treatment through the first connecting frame 631, the knee fixing sleeve 61, and the second connecting frame 641. At this time, the first connecting frame 631 is sleeved on the thigh of the patient, the second connecting frame 641 is sleeved on the calf of the patient, and the knee fixing sleeve 61 is clamped on the top of the knee of the patient. Since the bottom of the knee fixing sleeve 61 is provided with an opening 611, the knee fixing sleeve 61 does not affect the movement of the knee of the patient during traction treatment. The first soft pad 632 and the second soft pad 642 are in close contact with the legs of the patient, which can increase the comfort of the patient. The outer sides of the first soft pad 632 and the second soft pad 642 are respectively provided with elastic belts, which can ensure that the knee electrotherapy assembly 6 does not fall off the legs of the patient during traction treatment.

[0054] Please refer to Figure 11 and Figure 16 The discharge assembly 62 combines traditional Chinese medicine ion introduction, intermediate frequency electrotherapy, and static stretching technology, and effectively relieves the symptoms of knee arthritis through comprehensive treatment means. When the patient's knee is treated by traction, the discharge assembly 62 works at this time. The patient's legs have been stretched according to the set stretching angle. The discharge assembly 62 uses direct current to introduce specific traditional Chinese medicine ions into the affected knee joint of the subject through the physiotherapy electrode sheet. After the introduction of traditional Chinese medicine ions is completed, the blood circulation and tissue repair are further promoted through the action of intermediate frequency current, so as to achieve the effect of comprehensive treatment. The discharge assembly 62 includes a circular sub-mother buckle, an electrode plate is placed in the circular sub-mother buckle, and the disposable physiotherapy electrode sheet can be repeatedly replaced. The current frequency can be adjusted, and it is respectively used for direct current introduction of traditional Chinese medicine ions and intermediate frequency electrotherapy. The discharge assembly 62 uses a built-in power supply as the electrode sheet conducting device. The modulated power supply can convert the electrical signal input into direct current signal or alternating current signal output. When the alternating current signal output is output, the current frequency can be adjusted according to the needs of the disease, realizing the accurate control of the current frequency, and better meeting the treatment needs of different patients. In the present application, the discharge assembly 62 has simple structure, small size, and light weight, is convenient to integrate with other equipment, is suitable for various application scenarios such as virtual reality, remote operation, medical rehabilitation, etc., expands the application field of knee arthritis medical instruments, and effectively relieves the symptoms of knee arthritis through comprehensive treatment means by combining traditional Chinese medicine ion introduction, intermediate frequency electrotherapy, and static stretching technology.

[0055] Please refer toFigures 1-3 、 Figures 12-13 and Figures 15-16 , the third driving assembly 8 comprises a second motor 81, a storage wheel 82, a storage rope 83 and a disc 84. The first end of the storage rope 83 is wound on the storage wheel 82, the second end of the storage rope 83 passes through the through hole 71 on the top of the positioning frame 7 and is rotationally connected with the top surface of the disc 84, and the bottom surface of the disc 84 is fixedly connected with the knee fixing sleeve 61. After confirming that the leg of the patient needs to be treated, first, the positioning frame 7 is dragged to move the bottom of the positioning frame 7 along the slide rail 19 to the side close to the leg of the patient that needs to be treated. Next, the second motor 81 works to drive the storage wheel 82 to rotate forward, and the storage rope 83 is gradually released. After passing through the through hole 71 on the top of the positioning frame 7, the storage rope 83 drives the disc 84 to move downward, and the disc 84 drives the knee electrotherapy assembly 6 to move downward and fall on the treatment bed 1, so that the patient can wear the knee electrotherapy assembly 6.

[0056] Please refer to Figure 12 and Figures 15-16 , when the foot fixing assembly 2 moves toward the side of the backrest 11, the second motor 81 works to drive the storage wheel 82 to rotate reversely, the storage rope 83 is rewound on the storage wheel 82, and the storage rope 83 drives the disc 84 to move upward. When the foot fixing assembly 2 moves away from the side of the backrest 11, the second motor 81 works to drive the storage wheel 82 to rotate forward, and the storage rope 83 is gradually released. That is, the disc 84 can always move together with the knee of the patient, and the knee electrotherapy assembly 6 will not be pulled by the storage rope 83 during the traction treatment and electrotherapy of the patient.

[0057] Please refer to Figures 1-2 , Figures 12-16 , the traction force lifting assembly 9 comprises a first assembly rod 91, a sponge sleeve 92, a second assembly rod 93 and two limiting rods 94. The middle part of the positioning frame 7 is provided with an assembly groove 72, and the traction force lifting assembly 9 is arranged in the assembly groove 72. The sidewalls on both sides of the second assembly rod 93 are each provided with a fourth sliding groove 932, and the inner sidewalls on both sides of the assembly groove 72 are each provided with a fifth sliding groove 73. The two limiting rods 94 are respectively arranged on the two fourth sliding grooves 932 at the first ends of the two limiting rods 94, and the second ends of the two limiting rods 94 are respectively arranged in the two fifth sliding grooves 73.

[0058] Please refer to Figures 12-14The sponge sleeve 92 is sleeved and fixed on the first assembly rod 91, the first assembly rod 91 is screwed in the threaded groove 931 of the second assembly rod 93 through the external thread 911, the sponge sleeve 92 is screwed, the first assembly rod 91 can be driven to rotate, the length of the first assembly rod 91 screwed in the threaded groove 931 can be changed, and finally the overall length of the traction force lifting assembly 9 can be changed. When the traction force lifting assembly 9 is not used, the traction force lifting assembly 9 is in a storage state, the traction force lifting assembly 9 is vertically arranged, the first assembly rod 91 abuts against the inner top surface of the top of the sponge sleeve 92 and the assembly groove 72, so that the traction force lifting assembly 9 can be kept stable, and the traction force lifting assembly 9 will not shake during movement of the position adjusting frame 7.

[0059] Please refer to Figures 12-16 When the position of the position adjusting frame 7 is adjusted, the sponge sleeve 92 is screwed, so that the first assembly rod 91 is separated from the top of the sponge sleeve 92 and the inner top surface of the assembly groove 72, at this time, the second assembly rod 93 can be rotated, and the traction force lifting assembly 9 is rotated to a horizontal state. The limiting rod 94 is composed of two rectangular blocks and a circular rod, and the two ends of the circular rod are rotationally connected to the two rectangular blocks. The second assembly rod 93 is moved up and down, so that the height of the traction force lifting assembly 9 can be changed, at this time, the limiting rod 94 slides along the fifth sliding groove 73. The second assembly rod 93 is moved left and right, so that the distance between the sponge sleeve 92 and the patient can be changed, at this time, the limiting rod 94 slides along the fourth sliding groove 932. The traction force lifting assembly 9 can adapt to patients with different body shapes, and during traction treatment and electrotherapy of the patient, the sponge sleeve 92 is inserted into the patient's knee below, when the foot fixing assembly 2 moves towards the backrest 11 side, the patient's thigh and calf can clamp the sponge sleeve 92. The patient's knee can obtain more good traction force, the knee joint can be stretched, clicked and released, and the rehabilitation speed of the patient's knee joint is accelerated.

[0060] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes falling within the meaning and range of equivalents of the elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0061] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A rehabilitation treatment device for knee osteoarthritis, characterized in that: include: a treatment bed, wherein a top surface of a first end portion of the treatment bed is provided with a backrest; Two foot fixing assemblies, wherein the top surface of the second end portion of the treatment bed is provided with two guide grooves, wherein the length extension direction of the guide grooves is parallel to the length extension direction of the treatment bed, and the two foot fixing assemblies are respectively arranged in the two guide grooves; Two first drive assemblies, wherein an assembly cavity is provided inside the treatment bed, and the two first drive assemblies are disposed in the assembly cavity and correspond to the positions of the two guide slots, respectively. The two guide slots are both connected to the assembly cavity, and the output ends of the two first drive assemblies are respectively connected to the two foot fixing assemblies. The first drive assemblies are used to drive the foot fixing assemblies to reciprocate along the length extension direction of the guide slots; An avoidance passage is provided on the top surface of the treatment bed and between the two guide grooves. The avoidance passage is located on a side of the guide groove close to the backrest, and the two guide grooves are connected through the avoidance passage. Two second drive assemblies are further provided in the assembly cavity, and the output ends of the two second drive assemblies are respectively connected to the two foot fixing assemblies, and the second drive assemblies are used to drive the foot fixing assemblies to rotate; The first drive assembly comprises: a first electric telescopic rod, provided on a side of the foot fixing assembly close to the backrest; A bearing block, wherein a first slide groove is provided on the bottom surface of the assembly cavity, wherein the length extension direction of the first slide groove is parallel to the length extension direction of the guide groove, the bearing block is provided in the first slide groove and can slide along the first slide groove, and the bearing block is located below the first end portion of the first supporting plate; a connecting shaft provided between the first supporting plate and the bearing block, wherein a first end of the connecting shaft is fixedly connected to the first supporting plate, and a second end of the connecting shaft is rotatably connected to the bearing block; The second drive assembly includes: a gear, sleeved on the side wall of the connecting shaft and fixedly connected to the connecting shaft; The rack is arranged on a side away from each other of the two first drive components, and the rack is engaged with the gear for transmission.

2. The rehabilitation treatment device for knee osteoarthritis according to claim 1, characterized in that: The foot fixing assembly includes: First supporting plate; a second supporting plate, disposed directly above the first supporting plate, the second supporting plate having the same shape as the first supporting plate, and a first end portion of the second supporting plate being hinged to the first end portion of the first supporting plate; an electromagnet fixedly disposed on the top surface of the second end portion of the first supporting plate; a metal plate fixedly disposed on the bottom surface of the second end portion of the second supporting plate; The limiting bag is fixedly arranged on the top surface of the second end portion of the second supporting plate.

3. The rehabilitation treatment device for knee osteoarthritis according to claim 1, characterized in that: The second drive assembly further includes: The supporting plate, the rack is provided between the supporting plate and the first electric telescopic rod, and is fixedly provided on the top of the side wall of the supporting plate, the bottom surface of the assembly cavity is further provided with a second slide groove, the bottom of the supporting plate is provided in the second slide groove and can slide along the second slide groove, the length extension direction of the second slide groove is parallel to the length extension direction of the first slide groove, the length of the avoidance channel is greater than the length of the first supporting plate, the length of the second slide groove is greater than the length of the guide groove, and the distance between the first end of the second slide groove and the first end of the first slide groove is less than the distance between the second end of the second slide groove and the second end of the first slide groove; A threaded rod, a convex plate is provided on the side wall of the carrying plate away from the first electric telescopic rod, a threaded hole is provided in the middle of the convex plate, the threaded rod is screwed into the threaded hole, the length extension direction of the threaded rod is parallel to the length extension direction of the second slide groove, the length of the threaded rod is greater than the length of the second slide groove, the first end of the threaded rod is rotatably connected to the first bracket, the second end of the threaded rod is fixedly connected to the output end of the first motor, the first motor is fixedly connected to the second bracket, and the first bracket and the second bracket are both fixedly connected to the bottom surface of the assembly cavity.

4. The rehabilitation treatment device for knee osteoarthritis according to claim 2, characterized in that: A protection component is provided in the guide groove and on a side of the foot fixing component close to the backrest, and the protection component includes: A protective plate, wherein the guide groove is provided with a receiving groove on the inner side wall near the backrest side, the first end of the protective plate extends into the receiving groove and can slide along the receiving groove, the second end of the protective plate abuts the first end of the first supporting plate, the shape of the second end of the protective plate matches the shape of the first end of the first supporting plate, the second end of the protective plate can slide along the guide groove, the top surface of the first supporting plate is flush with the top surface of the treatment bed, and limiting strips are provided on both sides of the protective plate in the width extension direction of the protective plate, and third sliding grooves are provided on the two opposite inner side walls of the storage groove, the third sliding groove extends into the storage groove, and the limiting strip extends into the third sliding groove and can slide along the third sliding groove; A plurality of springs are arranged in the receiving groove, the length extension direction of the spring is the same as the length extension direction of the protective plate, the first end of the spring is fixedly connected to the inner wall of the receiving groove, and the second end of the spring is fixedly connected to the first end of the protective plate.

5. The rehabilitation treatment device for knee osteoarthritis according to claim 1, characterized in that: Also includes: A knee electrotherapy assembly is arranged above the treatment bed; A positioning frame, wherein the second end of the treatment bed is in an arc-shaped structure, a slide rail is provided on the side wall of the treatment bed and passes around the second end of the treatment bed, and the bottom of the positioning frame is disposed within the slide rail and is capable of sliding along the slide rail; A third driving assembly is provided on the top of the positioning frame, wherein the output end of the third driving assembly is connected to the knee electrotherapy assembly and is used to drive the knee electrotherapy assembly to move up and down; The traction force lifting component is arranged in the middle of the position adjustment frame.

6. The rehabilitation treatment device for knee osteoarthritis according to claim 5, characterized in that: The knee electrotherapy assembly comprises: A knee fixation sleeve, wherein the top of the knee fixation sleeve is provided with a discharge assembly and the bottom of the knee fixation sleeve is provided with an opening; a thigh fixing sleeve, disposed on one side of the knee fixing sleeve, the thigh fixing sleeve comprising a first connecting frame, a first end of the first connecting frame being hingedly connected to the knee fixing sleeve, and a first soft pad being disposed on the inner side of a second end of the first connecting frame; The calf fixing sleeve is arranged on the other side of the knee fixing sleeve. The calf fixing sleeve includes a second connecting frame. The first end of the second connecting frame is hinged to the knee fixing sleeve. The inner side of the second end of the second connecting frame is provided with a second soft pad.

7. The rehabilitation treatment device for knee osteoarthritis according to claim 6, characterized in that: The third drive assembly includes: A second motor is fixedly arranged on the top of the positioning frame, and an output end of the second motor is fixedly connected to the receiving wheel; A storage rope, the first end of the storage rope is wound around the storage wheel and fixedly connected to the storage wheel, a through hole is provided on the top of the adjustment frame, the second end of the storage rope passes through the through hole and is rotatably connected to the top surface of the disc, and the bottom surface of the disc is fixedly connected to the knee fixing sleeve.

8. The rehabilitation treatment device for knee osteoarthritis according to claim 5, characterized in that: A mounting groove is provided in the middle of the positioning frame, the mounting groove passes through the positioning frame, and the traction force lifting component is arranged in the mounting groove; The traction improvement component comprises: a first assembly rod, wherein a first end portion of the first assembly rod is sleeved with a sponge sleeve, and a second end portion of the first assembly rod is sleeved with an external thread; a second assembly rod, wherein a thread groove is provided on an end surface of one side of the second assembly rod, the second end of the first assembly rod is screwed into the thread groove, and the sum of the lengths of the first assembly rod and the second assembly rod is greater than the length of the assembly groove; Two limit rods are respectively arranged on both sides of the second assembly rod, and fourth sliding grooves are provided on the side walls on both sides of the second assembly rod. Fifth sliding grooves are provided on the inner side walls on both sides of the assembly grooves, and the length of the fifth sliding groove is greater than the length of the fourth sliding groove. The first ends of the two limit rods are respectively arranged in the two fourth sliding grooves and can slide along the fourth sliding grooves. The second ends of the two limit rods are respectively arranged in the two fifth sliding grooves and can slide along the fifth sliding grooves.

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