Rehabilitation treatment equipment for knee osteoarthritis

Abstract

The invention relates to the technical field of knee joint rehabilitation instruments, in particular to knee joint osteoarthritis rehabilitation treatment equipment which comprises a treatment bed, two foot fixing assemblies and two first driving assemblies. A backrest is arranged on the top face of the first end of the treatment bed, two guide grooves are formed in the top face of the second end of the treatment bed, and the two foot fixing assemblies are arranged in the two guide grooves respectively. An assembling cavity is formed in the treatment bed, the two first driving assemblies are arranged in the assembling cavity, and the output ends of the two first driving assemblies are connected with the two foot fixing assemblies respectively. When the knee joint traction device is used, the posture of a patient can be standardized, uniform and appropriate-force joint traction can be implemented, safe joint surface separation and effective treatment are achieved, and the rehabilitation speed of the knee joint of the patient is increased. The invention aims to help a patient with osteoarthritis to increase knee joint motion range, release joint negative pressure, relieve pain and improve life quality.

Description

Technical Field

[0001] The present invention relates to the technical field of knee joint rehabilitation equipment, and specifically relates to a rehabilitation treatment device for knee joint osteoarthritis. Background Art

[0002] The knee joint is a weight-bearing joint in the human body. The prevalence of knee osteoarthritis in my country is 8.1%. Patients mainly experience varying degrees of knee pain, swelling, deformity, and limited mobility. In the late stage, patients will experience persistent joint pain and decreased mobility. The cartilage of the knee joint is easily worn, and joint strain and degenerative lesions of the soft tissue around the joint are the main causes of knee arthritis.

[0003] The current clinical treatment goal for osteoarthritis is to relieve pain, among which knee traction technology has a significant effect on improving the pain of patients. The commonly used knee traction device relaxes the local muscles of the knee joint to a large extent, prevents adhesion of soft tissues around the joint, maintains or restores normal joint alignment, and increases muscle excitability through direct or indirect reflexes to increase the stability of the knee joint, playing a good rehabilitation role. At present, the resources for rehabilitation treatment are limited, the physical strength of therapists is limited, and many patients cannot achieve daily professional rehabilitation treatment. At the same time, the operation process of the equipment used for traction is complicated, and it is difficult for non-professionals to operate it correctly independently.

[0004] The disadvantage of existing knee traction devices is that patients cannot achieve daily professional rehabilitation treatment by themselves. When they complete knee traction treatment by themselves, they are often unfamiliar with the anatomical structure of the knee joint, and the knee traction treatment effect is not ideal due to incorrect posture and uneven force, which delays the recovery of the patient's 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 osteoarthritis. Summary of the invention

[0005] The purpose of the present invention is to provide a rehabilitation treatment device for knee osteoarthritis, which aims to help patients with knee osteoarthritis to implement traction in a standardized manner, apply traction force correctly and evenly during knee traction, make the traction operation process simpler and easier, help patients relieve pain, speed up the recovery process, and improve the quality of life.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A rehabilitation treatment device for knee osteoarthritis, comprising: a treatment bed, a top surface of a first end portion of the treatment bed is provided with a backrest; two foot fixing assemblies, a top surface of a second end portion 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, and the two foot fixing assemblies are respectively arranged in the two guide grooves; two first drive assemblies, an assembly cavity is provided inside the treatment bed, two first drive assemblies are both arranged in the assembly cavity and correspond to the positions of the two guide grooves respectively, the two guide grooves are both communicated with the assembly cavity, and the output ends of the two first drive assemblies are respectively connected to the two foot fixing assemblies, and the first drive assembly is used to drive the foot fixing assembly to reciprocate along the length extension direction of the guide groove.

[0007] Preferably, an avoidance channel is provided on the top surface of the treatment bed and between the two guide grooves, the avoidance channel is located on the side of the guide groove close to the backrest, and the two guide grooves are connected through the avoidance channel; two second drive assemblies are also 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 assembly is used to drive the foot fixing assembly to rotate.

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

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

[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 on the top of the side wall of the bearing plate, a second slide groove is further arranged on the bottom surface of the assembly cavity, the bottom of the bearing plate is arranged 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, 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 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 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.

[0011] Preferably, a protective component is provided in the guide groove and located on the side of the foot fixing component close to the backrest, and the protective component includes: a protective plate, a storage groove is provided on the inner side wall of the guide groove close to the backrest, the first end of the protective plate extends into the storage groove and can slide along the storage groove, the second end of the protective plate abuts against 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, and the top surface of the first supporting plate is aligned with the The top surface of the treatment bed is flush, and in the width extension direction of the protective plate, limit strips are provided on both sides of the protective plate, and third slide grooves are provided on the two opposite inner side walls of the storage groove, and the third slide grooves extend into the storage grooves, and the limit strips extend into the third slide grooves and can slide along the third slide grooves; a plurality of springs are arranged in the storage grooves, and the length extension direction of the springs 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 storage groove, and the second end of the spring is fixedly connected to the first end of the protective plate.

[0012] Preferably, it also includes: a knee electrotherapy component, which is arranged above the treatment bed; a positioning frame, the second end of the treatment bed is in an arc-shaped structure, and a slide rail that bypasses the second end of the treatment bed is provided on the side wall of the treatment bed, and the bottom of the positioning frame is arranged in the slide rail and can slide along the slide rail; a third driving component, which is arranged on the top of the positioning frame, and the output end of the third driving component is connected to the knee electrotherapy component for driving the knee electrotherapy component to move up and down; a traction force lifting component, which is arranged in the middle of the positioning frame.

[0013] Preferably, the knee electrotherapy assembly includes: a knee fixing sleeve, a discharge assembly is provided on the top of the knee fixing sleeve, and an opening is provided on the bottom of the knee fixing sleeve; a thigh fixing sleeve, arranged on one side of the knee fixing sleeve, the thigh fixing sleeve includes a first connecting frame, a first end of the first connecting frame is hinged to the knee fixing sleeve, and a first pad is provided on the inner side of the second end of the first connecting frame; a calf fixing sleeve, arranged on the other side of the knee fixing sleeve, the calf fixing sleeve includes a second connecting frame, a first end of the second connecting frame is hinged to the knee fixing sleeve, and a second pad is provided on the inner side of the second end of the second connecting frame.

[0014] Preferably, the third driving assembly includes: a second motor fixedly arranged on the top of the positioning frame, the output end of the second motor fixedly connected to the storage 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 positioning 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.

[0015] Preferably, an assembly groove is provided in the middle portion of the positioning frame, the assembly groove passes through the positioning frame, and the traction lifting assembly is arranged in the assembly groove; the traction lifting assembly comprises: a first assembly rod, a first end portion of the first assembly rod is sleeved with a sponge sleeve, and the second end portion of the first assembly rod is provided with an external thread; a second assembly rod, an end surface of one side of the second assembly rod is provided with a thread groove, the second end portion 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 limiting rods are respectively arranged on both sides of the second assembly rod, and fourth sliding grooves are respectively provided on the side walls on both sides of the second assembly rod, and fifth sliding grooves are respectively provided on the inner side walls on both sides of the assembly groove, and 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 groove, 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 groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (a) When in use, the present invention can not only regulate the patient's posture, but also implement uniform and appropriate joint traction, achieve safe joint surface separation and effective treatment, and accelerate the recovery of the patient's knee joint. The first drive component can drive the foot fixation component to perform reciprocating motion, and the second drive component can drive the foot fixation component to rotate. The present invention is intended to help patients with knee osteoarthritis to standardize traction, correctly and evenly apply traction force, and make the traction operation process simpler and easier during knee traction, so as to help patients relieve pain, accelerate the recovery process, and improve the quality of life.

[0017] (ii) The present invention also includes a knee electrotherapy component, which includes a discharge component. The discharge component has a simple structure, a small size, and a light weight, and is easy to integrate with other devices. It is suitable for a variety of application scenarios, such as virtual reality, remote operation, medical rehabilitation, etc., which expands the application field of medical instruments for knee arthritis. It also integrates traditional Chinese medicine ion introduction, medium frequency electrotherapy, and static stretching technology to effectively alleviate the symptoms of knee arthritis through comprehensive treatment methods.

[0018] (III) The present invention also includes a traction force enhancement component, which includes a first assembly rod and a sponge sleeve. During the traction therapy and electrotherapy of the patient, the sponge sleeve is inserted under the patient's knee. When the foot fixing component moves toward the side close to the backrest, the patient's thigh and calf can clamp the sponge sleeve. The patient's knee can obtain more good traction, the knee joint can stretch, snap and release, and the recovery speed of the patient's knee joint can be accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an axonometric view of the present invention; Figure 2 It is a front cross-sectional view of the present invention; Figure 3 is a top cross-sectional view of the present invention; Figure 4 A top view of the treatment bed of the present invention; Figure 5 is an axonometric cross-sectional view of the treatment bed of the present invention; Figure 6 for Figure 5 The enlarged view of point A in the middle; Figure 7 It is an axonometric view of a foot fixing assembly at one angle when the foot fixing assembly of the present invention is not rotated; Figure 8 It is an axonometric view at another angle when the foot fixing assembly of the present invention is not rotated; Fig. 9 for Figure 8 The enlarged view of point B in the middle; Fig.10 It is an axonometric view of the foot fixing assembly after rotation in the present invention; Fig.11 is an axonometric diagram of the knee electrotherapy assembly of the present invention; Fig.12 It is an axonometric diagram of the positioning frame, the third driving assembly and the traction force enhancement assembly in the present invention; Fig.13 It is an axonometric view of the positioning frame in the present invention; Fig.14 It is an axonometric exploded view of the traction force enhancement assembly of the present invention; Fig.15 An axonometric view of the present invention after a patient is seated on a treatment bed; Fig.16 An axonometric view of the present invention during knee treatment of a patient.

[0020] Reference numerals include: 1-treatment bed, 11-backrest, 12-guide groove, 13-assembly cavity, 14-avoidance channel, 15-first slide groove, 16-second slide groove, 17-storage groove, 18-third slide groove, 19-slide rail, 2-foot fixing assembly, 21-first support plate, 22-second support plate, 23-electromagnet, 24-metal plate, 25-limiting bag, 3-first drive assembly, 31-first electric telescopic rod, 32-bearing block, 33-connecting shaft, 4-second drive assembly, 41-gear, 42-rack, 43-bearing plate, 431-convex plate, 432-threaded hole, 44-threaded rod, 45-first bracket, 46-first motor, 47-second bracket, 5-protection assembly, 51- Protective plate, 52-limiting strip, 53-spring, 6-knee electrotherapy component, 61-knee fixing sleeve, 611-opening, 62-discharge component, 63-thigh fixing sleeve, 631-first connecting frame, 632-first cushion, 64-calf fixing sleeve, 641-second connecting frame, 642-second cushion, 7-adjusting frame, 71-through hole, 72-assembly groove, 73-fifth slide groove, 8-third drive component, 81-second motor, 82-storage wheel, 83-storage rope, 84-disc, 9-traction lifting component, 91-first assembly rod, 911-external thread, 92-sponge sleeve, 93-second assembly rod, 931-thread groove, 932-fourth slide groove, 94-limiting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1

[0023] See also Figure 1-16 The present invention provides a technical solution: a rehabilitation treatment device for knee osteoarthritis, comprising a treatment bed 1, two foot fixing components 2 and two first drive components 3. A backrest 11 and two guide grooves 12 are provided on the top surface of the treatment bed 1, and the two foot fixing components 2 are respectively arranged in the two guide grooves 12. An assembly cavity 13 is provided inside the treatment bed 1, and the two first drive components 3 are both arranged in the assembly cavity 13, and the output ends of the two first drive components 3 are respectively connected to the two foot fixing components 2.

[0024] See also Figure 1-3 and Fig.15 Before the present invention is used, the foot fixing assembly 2 is located in the middle of the guide groove 12. When the present invention is used for traction treatment, the patient first sits on the treatment bed 1, with the patient's back against the backrest 11, and then the patient's two legs are bent so that the patient's two feet can step on the two foot fixing assemblies 2 respectively, and then the patient's two feet are restrained by the two foot fixing assemblies 2. Please refer to Figure 1-3 and Fig.16 Next, the first driving assembly 3 under the patient's leg on the side that does not need traction treatment works, driving the foot fixing assembly 2 to move away from the backrest 11. The foot fixing assembly 2 drives the patient's foot on the side that does not need traction treatment to move away from the backrest 11. When the patient's leg on the side that does not need traction treatment is straightened, the first driving assembly 3 on this side stops working. Then the patient sits up and leans on the backrest 11, with his hands on both sides of the body. It can be seen that the present invention can standardize the patient's posture before starting the traction treatment operation to prevent the patient from being injured.

[0025] See also Figure 1-3 and Fig.16 During traction therapy, the first drive assembly 3 under the leg of the patient who needs traction therapy works, driving the foot fixing assembly 2 to move along the guide groove 12 toward the side of the backrest 11. When the patient's leg 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, driving the foot fixing assembly 2 to move along the guide groove 12 away from the backrest 11, until the foot fixing assembly 2 returns to the middle of the guide groove 12, and then the first drive assembly 3 stops working. During the entire traction therapy process, the first drive assembly 3 will drive the foot fixing assembly 2 to reciprocate five times, and then the patient can remove the foot from the foot fixing assembly 2 and leave the treatment bed 1.

[0026] Since the diseased knees of different patients are located on different sides, it is necessary to be able to control and change in real time which side the first driving component 3 drives the foot fixing component 2 to reciprocate. In the present invention, a controller (not shown in the figure) is provided on the backrest 11, through which the operating state of each component in the present invention can be controlled.

[0027] See also Figure 1-4 and Fig.16 , an avoidance channel 14 is provided on the top surface of the treatment bed 1 and between the two guide grooves 12, and two second drive assemblies 4 are also provided in the assembly cavity 13, and the output ends of the two second drive assemblies 4 are respectively connected to the two foot fixing assemblies 2. In the process of the foot fixing assembly 2 moving along the guide groove 12 toward the side of the backrest 11, the second drive assembly 4 can drive the foot fixing assembly 2 to rotate, and then drive the patient's foot to rotate toward the leg on the straight side. This operation helps the natural movement of the knee of patients with knee osteoarthritis, is more effective for opening the knee joint, and can also release joint pressure. Since the movement of the patient's feet, legs and knees is driven by the first drive assembly 3 and the second drive assembly 4, the first drive assembly 3 and the second drive assembly 4 can evenly apply force to complete the traction action of the knee joint compared to the patient himself, thereby accelerating the recovery speed of the patient's knee joint.

[0028] See also Figure 1-3 , Figure 7-8 and Figure 15-16 The foot fixing assembly 2 includes a first supporting plate 21, a second supporting plate 22, an electromagnet 23, a metal plate 24 and a limiting bag 25. Figure 1-3 and Figure 7-8, the first driving assembly 3 includes 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. When the patient extends the front end of the foot into the limiting bag 25, the sole of the patient's foot can fit with the top surface of the second supporting plate 22. The limiting bag 25 and the second supporting plate 22 cooperate to limit the patient's foot and prevent the patient's foot 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 patient's leg needs to be straightened, the electromagnet 23 does not absorb the metal plate 24, and the first supporting plate 21 can rotate around the second supporting plate 22. When the patient's leg needs traction treatment, the electromagnet 23 absorbs the metal plate 24, the first supporting plate 21 and the second supporting plate 22 fit tightly, and the first supporting plate 21 cannot rotate around the second supporting plate 22. When the first driving assembly 3 is working, the first electric telescopic rod 31 is extended and retracted to drive the bearing block 32 to slide back and forth in the first slide groove 15, thereby driving the foot fixing assembly 2 to reciprocate through the connecting shaft 33. At this time, the sole of the patient's foot on the side to be treated is always parallel to the top surface of the treatment bed 1 during the reciprocating motion, further standardizing the patient's posture.

[0029] See also Figure 1-3 , Figure 7-10 and Fig.16 , the second driving assembly 4 includes a gear 41 and a rack 42. The gear 41 is sleeved on the side wall of the connecting shaft 33, and there is a distance between the gear 41 and the rack 42. When the first electric telescopic rod 31 is shortened and drives the bearing block 32 to move toward the side close to the backrest 11, the gear 41 does not contact the rack 42 first, so it will not rotate when the foot fixing assembly 2 has not completely moved to the position of the avoidance channel 14. After the foot fixing assembly 2 moves to the position of the avoidance channel 14, the gear 41 contacts the rack 42. At this time, the gear 41 follows the foot fixing assembly 2 to move toward the side of the backrest 11, but the rack 42 does not move, so the rack 42 can drive the gear 41 to rotate, and then drive the foot fixing assembly 2 to rotate, and finally drive the patient's foot to rotate toward the straightened side of the leg. When the first electric telescopic rod 31 is extended, the rack 42 can drive the gear 41 to rotate in the opposite direction, and finally drive the patient's foot back to the original direction.

[0030] See also Figure 7-10 and Fig.16, the second drive assembly 4 includes a bearing plate 43, a threaded rod 44, a first bracket 45, a first motor 46 and a second bracket 47. Since different patients have different leg lengths, the movement range of the foot following the foot fixing assembly 2 needs to be adjusted as needed. The rack 42 is fixed to the top of the bearing plate 43, and the bottom of the bearing plate 43 is arranged in the second slide groove 16, and the length of the second slide groove 16 is greater than the length of the guide groove 12. Therefore, when the bearing plate 43 slides in the second slide groove 16 to the farthest end close to the side of the backrest 11, no matter how the first drive assembly 3 drives the foot fixing assembly 2 to move in the guide groove 12, the foot fixing assembly 2 will not rotate. The present invention can adapt to the leg length of each patient before starting traction treatment.

[0031] After the adaptation process of the foot fixing assembly 2 is completed, the first motor 46 drives the threaded rod 44 to rotate. Since the threaded rod 44 is screwed into the threaded hole 432 in the middle of the convex plate 431, the forward and reverse rotation of the first motor 46 can drive the convex plate 431 to reciprocate through the threaded rod 44, thereby driving the bearing plate 43 to reciprocate in the second slide groove 16, and finally driving the rack 42 to move to a suitable position, so that the gear 41 can contact the rack 42, driving the foot fixing assembly 2 to rotate. The first bracket 45 and the second bracket 47 are both fixedly connected to the bottom surface of the assembly cavity 13, so that the first motor 46 and the threaded rod 44 can be fixed in the treatment bed 1. When the gear 41 contacts the rack 42, the second drive assembly 4 will not change its position.

[0032] See also Figure 1-6 and Figure 15-16 , a protection assembly 5 is provided in the guide groove 12, and the protection assembly 5 includes a protection plate 51, two limit strips 52 and a plurality of springs 53. When the foot fixing assembly 2 is located in the middle of the guide groove 12, the protection assembly 5 can block the guide groove 12 on the side of the foot fixing assembly 2 close to the backrest 11, preventing the patient's clothes or pants from entering the assembly cavity 13, and preventing the patient's clothes or pants from being scratched by the first drive assembly 3 or the second drive assembly 4. A receiving groove 17 is provided on the inner side wall of the guide groove 12, and a 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 toward the side of the backrest 11, the first supporting plate 21 pushes the protection plate 51 into the receiving groove 17, and the first supporting plate 21 applies pressure to the plurality of springs 53, and the springs 53 shorten to store elastic potential energy. When the first electric telescopic rod 31 is extended and drives the foot fixing assembly 2 to move away from the backrest 11 , the spring 53 releases its elastic potential energy and extends, and the spring 53 pushes the protective plate 51 to return to its original position. The protective plate 51 can still abut against the first supporting plate 21 and block the guide groove 12 .

[0033] See also Figure 4-6 The two limit bars 52 are fixedly arranged on both sides of the protective plate 51, and the third slide grooves 18 are arranged on the two opposite inner side walls of the receiving groove 17, and the limit bars 52 extend into the third slide grooves 18. The limit bars 52 can provide support for the protective plate 51, and when the protective plate 51 slides along the receiving groove 17 and the guide groove 12, the limit bars 52 slide along the third slide grooves 18.

[0034] Embodiment 2

[0035] See also Figure 1-3 , Figure 5 and Figure 15-16 On the basis of the first embodiment, the present invention further comprises a knee electrotherapy assembly 6, a positioning frame 7, a third driving assembly 8 and a traction force enhancement assembly 9. A slide rail 19 is provided on the side wall of the treatment bed 1, and the bottom of the positioning frame 7 is provided in the slide rail 19, and the positioning frame 7 can slide along the slide rail 19 to change its position. The knee electrotherapy assembly 6, the third driving assembly 8 and the traction force enhancement assembly 9 are all provided on the positioning frame 7, the knee electrotherapy assembly 6 can discharge electricity to treat the patient's knee joint, the third driving assembly 8 can drive the knee electrotherapy assembly 6 to move up and down, and the traction force enhancement assembly 9 can enhance the traction force of the patient during traction treatment.

[0036] See also Figure 1-2 , Fig.11 and Figure 15-16 The 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 cushion 632, and the calf fixing sleeve 64 includes a second connecting frame 641 and a second cushion 642. The first connecting frame 631 and the calf fixing sleeve 64 are respectively formed by splicing a plurality of lightweight aluminum alloy brackets. When 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 passes the foot on the side that needs traction treatment through the first connecting frame 631, the knee fixing sleeve 61 and the second connecting frame 641 in sequence. At this time, the first connecting frame 631 is sleeved on the patient's thigh, the second connecting frame 641 is sleeved on the patient's calf, and the knee fixing sleeve 61 is stuck on the top of the patient's knee. Since the bottom of the knee fixing sleeve 61 is provided with an opening 611, the knee fixing sleeve 61 will not affect the movement of the patient's knee during traction treatment. The first soft pad 632 and the second soft pad 642 fit the patient's legs to increase the patient's comfort. Elastic bands are provided on the outer sides of the first soft pad 632 and the second soft pad 642 to ensure that the knee electrotherapy assembly 6 will not fall off the patient's legs during traction treatment of the patient's knee.

[0037] See also Fig.11 and Fig.16, the discharge component 62 combines Chinese medicine ion introduction, medium frequency electrotherapy and static stretching technology, and then effectively relieves the symptoms of knee arthritis through comprehensive treatment means. When the patient's knee is traction treated, the discharge component 62 works, and the patient's leg has been stretched according to the set stretching angle. The discharge component 62 uses direct current to introduce specific Chinese medicine ions into the affected knee joint of the subject through the physical therapy electrode sheet. After the introduction of the Chinese medicine ions is completed, the medium frequency current further promotes blood circulation and tissue repair, thereby achieving the effect of comprehensive treatment. The discharge component 62 includes a circular snap-on buckle, and an electrode plate is placed inside the circular snap-on buckle. The disposable physical therapy electrode sheet can be replaced repeatedly, and the current frequency can be adjusted, which is used for direct current to introduce Chinese medicine ions and medium frequency electrotherapy respectively. The discharge component 62 uses a built-in power supply as a conductive device for the electrode sheet, and the modulated power supply can convert the electrical signal input into a direct current signal or an alternating current signal output. When the alternating current signal is output, the current frequency can be adjusted according to the needs of the disease, and the current frequency is accurately controlled, which better meets the treatment needs of different patients. In the present invention, the discharge component 62 has a simple structure, small size, and light weight, and is easy to integrate with other devices. It is suitable for a variety of application scenarios, such as virtual reality, remote operation, medical rehabilitation, etc., expanding the application field of medical instruments for knee arthritis, and integrating traditional Chinese medicine ion introduction, medium frequency electrotherapy, and static stretching technology, effectively alleviating the symptoms of knee arthritis through comprehensive treatment methods.

[0038] See also Figure 1-3 , Figure 12-13 and Figure 15-16 , the third driving assembly 8 includes 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 around the storage wheel 82, the second end of the storage rope 83 passes through the through hole 71 at the top of the positioning frame 7, and is rotatably connected to the top surface of the disc 84, and the bottom surface of the disc 84 is fixedly connected to the knee fixing sleeve 61. After confirming which leg of the patient needs treatment, the positioning frame 7 is first dragged so that the bottom of the positioning frame 7 moves along the slide rail 19 to the side of the leg close to the patient's leg that needs treatment. Next, the second motor 81 works, driving the storage wheel 82 to rotate forward, and the storage rope 83 is gradually released. After passing through the through hole 71 at the top of the positioning frame 7, the storage rope 83 will drive the disc 84 to move downward, and the disc 84 drives the knee electrotherapy assembly 6 to move downward and fall onto the treatment bed 1, so that the patient can wear the knee electrotherapy assembly 6.

[0039] See also Fig.12 and Figure 15-16When the foot fixing assembly 2 moves toward the side of the backrest 11, the second motor 81 works, driving the storage wheel 82 to reverse, and the storage rope 83 is rewound around 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 backrest 11, the second motor 81 works, driving the storage wheel 82 to rotate forward, and the storage rope 83 is gradually released. In other words, the disc 84 can always move with the patient's knee, and during the patient's traction therapy and electrotherapy, the knee electrotherapy assembly 6 will not be pulled by the storage rope 83.

[0040] See also Figure 1-2 , Figure 12-16 The traction force lifting assembly 9 includes a first assembly rod 91, a sponge cover 92, a second assembly rod 93 and two limit rods 94. An assembly groove 72 is provided in the middle of the adjustment frame 7, and the traction force lifting assembly 9 is arranged in the assembly groove 72. The side walls on both sides of the second assembly rod 93 are provided with fourth slide grooves 932, and the inner side walls on both sides of the assembly groove 72 are provided with fifth slide grooves 73. The two limit rods 94 are respectively arranged on both sides of the second assembly rod 93. The first ends of the two limit rods 94 are respectively arranged in the two fourth slide grooves 932, and the second ends of the two limit rods 94 are respectively arranged in the two fifth slide grooves 73.

[0041] See also Figure 12-14 The sponge sleeve 92 is sleeved and fixed on the first assembly rod 91. The first assembly rod 91 is screwed into the thread groove 931 on the second assembly rod 93 through the external thread 911. The first assembly rod 91 can be driven to rotate by twisting the sponge sleeve 92, which can change the length of the first assembly rod 91 screwed into the thread groove 931, and finally change the overall length of the traction lifting assembly 9. When the present invention is not in use, the traction lifting assembly 9 is in a storage state, the traction lifting assembly 9 is vertically arranged, and the top of the first assembly rod 91 and the sponge sleeve 92 abut against the inner top surface of the assembly groove 72, so the traction lifting assembly 9 can remain stable, and the traction lifting assembly 9 will not shake during the movement of the positioning frame 7.

[0042] See also Figure 12-16, when the position of the adjustment frame 7 is adjusted, the sponge cover 92 is twisted so that the top of the first assembly rod 91 and the sponge cover 92 leave the inner top surface of the assembly groove 72. At this time, the second assembly rod 93 can be turned to rotate, and the traction lifting component 9 rotates to a horizontal state. The limiting rod 94 is composed of two rectangular blocks and a round rod, and the two ends of the round rod are respectively connected to the two rectangular blocks for rotation. By moving the second assembly rod 93 up and down, the height of the traction lifting component 9 can be changed, and the limiting rod 94 slides along the fifth slide groove 73. By moving the second assembly rod 93 left and right, the distance between the sponge cover 92 and the patient can be changed, and the limiting rod 94 slides along the fourth slide groove 932. The traction lifting component 9 can be adapted to patients of different body shapes. During the process of traction therapy and electrotherapy of the patient, the sponge cover 92 is extended under the patient's knee. When the foot fixing component 2 moves toward the side close to the backrest 11, the patient's thigh and calf can clamp the sponge cover 92. The patient's knee can obtain more good traction, and the knee joint can stretch, snap and release, which speeds up the recovery of the patient's knee joint.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

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, 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, and the two foot fixing assemblies are respectively arranged in the two guide grooves; Two first drive assemblies, an assembly cavity is provided inside the treatment bed, the two first drive assemblies are both arranged in the assembly cavity and correspond to the positions of the two guide grooves respectively, the two guide grooves are both connected to the assembly cavity, the output ends of the two first drive assemblies are respectively connected to the two foot fixing assemblies, and the first drive assembly is used to drive the foot fixing assembly to reciprocate along the length extension direction of the guide groove.

2. The rehabilitation treatment device for knee osteoarthritis according to claim 1, characterized in that: 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 components are also provided in the assembly cavity, and the output ends of the two second drive components are respectively connected to the two foot fixing components, and the second drive components are used to drive the foot fixing components to rotate.

3. The rehabilitation treatment device for knee osteoarthritis according to claim 2, characterized in that: The foot fixing assembly comprises: The first supporting plate; A second supporting plate is disposed directly above the first supporting plate, the second supporting plate has the same shape as the first supporting plate, and a first end of the second supporting plate is hinged to the first end 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.

4. The rehabilitation treatment device for knee osteoarthritis according to claim 3, characterized in that: The first driving assembly comprises: A first electric telescopic rod, disposed 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, wherein the bearing block is provided in the first slide groove and can slide along the first slide groove, and wherein 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 driving assembly comprises: A gear, sleeved on the side wall of the connecting shaft and fixedly connected to the connecting shaft; The rack is arranged on the side away from each other of the two first driving components, and the rack is meshed with the gear for transmission.

5. The rehabilitation treatment device for knee osteoarthritis according to claim 4, characterized in that: The second drive assembly further comprises: A load-bearing plate, wherein the rack is arranged between the load-bearing plate and the first electric telescopic rod and is fixedly arranged on the top of the side wall of the load-bearing plate, a second slide groove is further arranged on the bottom surface of the assembly cavity, the bottom of the load-bearing plate is arranged 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.

6. The rehabilitation treatment device for knee osteoarthritis according to claim 3, characterized in that: A protection component is provided in the guide groove and located on the side of the foot fixing component close to the backrest, and the protection component includes: A protective plate, a receiving groove is provided on the inner side wall of the guide groove close to 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 in the width extension direction of the protective plate, both sides of the protective plate are provided with limiting strips, and the two inner side walls opposite to the receiving groove are provided with a third slide groove, the third slide groove extends into the receiving groove, and the limiting strip extends into the third slide groove and can slide along the third slide 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.

7. 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 position adjustment frame, wherein the second end of the treatment bed is in an arc-shaped structure, a slide rail that bypasses the second end of the treatment bed is provided on the side wall of the treatment bed, and the bottom of the position adjustment frame is provided in the slide rail and can slide along the slide rail; A third driving component is arranged on the top of the positioning frame, and an output end of the third driving component is connected to the knee electrotherapy component to drive the knee electrotherapy component to move up and down; The traction force enhancement component is arranged in the middle part of the position adjustment frame.

8. The rehabilitation treatment device for knee osteoarthritis according to claim 7, characterized in that: The knee electrotherapy assembly comprises: A knee fixing sleeve, wherein a discharge assembly is provided on the top of the knee fixing sleeve and an opening is provided on the bottom of the knee fixing sleeve; A thigh fixing sleeve is arranged on one side of the knee fixing sleeve, the thigh fixing sleeve comprises a first connecting frame, a first end of the first connecting frame is hinged to the knee fixing sleeve, and a first soft pad is arranged on the inner side of the second end of the first connecting frame; The calf fixing sleeve is arranged on the other side of the knee fixing sleeve, and the calf fixing sleeve comprises a second connecting frame, a first end of the second connecting frame is hinged to the knee fixing sleeve, and a second soft pad is arranged on the inner side of the second end of the second connecting frame.

9. The rehabilitation treatment device for knee osteoarthritis according to claim 8, characterized in that: The third driving assembly comprises: A second motor is fixedly arranged on the top of the position adjustment frame, and an output end of the second motor is fixedly connected to the storage 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.

10. The rehabilitation treatment device for knee osteoarthritis according to claim 7, 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 enhancement assembly comprises: A first assembly rod, wherein a first end of the first assembly rod is sleeved with a sponge sleeve, and a second end 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 respectively arranged on the side walls on both sides of the second assembly rod. Fifth sliding grooves are respectively arranged 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, and 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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