Knee joint disease based on KOA-PT therapy exercise rehabilitation treatment instrument

Abstract

The application provides a KOA-PT therapy-based exercise rehabilitation treatment instrument for periprosthetic joint disease, which comprises a base placed on the ground, a frame capable of stretching up and down and fixedly connected to the base at one end and arranged close to the end of a treatment leg of a patient, a swing arm capable of stretching up and down and arranged in a suspended manner and swing-connected to the stretching end of the frame close to the side of the treatment leg of the patient, a foot part in an L-shaped vertical section, used for placing the treatment leg of the patient and capable of sliding up and down along the axis of the swing arm, sliding left and right along the radial direction of the swing arm and rotating around the lower part of the swing arm, and a pedal arranged close to the side of the treatment leg of the patient, wherein the L-shaped upper part of the pedal is fixedly connected with a C-shaped clamp close to the side of the treatment leg of the patient. The application enables the patient to stand on the base with a non-treatment leg and swing the treatment leg, or enables the patient to lie on a bed arranged directly above the base and swing and bend the treatment leg.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical rehabilitation treatment devices, in particular to a knee disease motion rehabilitation treatment device based on KOA-PT therapy. BACKGROUND

[0002] Knee joint disease has seriously affected the quality of people's life. Knee joint disease is usually caused by the following reasons: lower limb biomechanical imbalance, lower limb disuse atrophy, long-term incorrect body position (such as sitting or squatting for a long time), long-term lower limb blood supply deficiency, joint cavity infection, intra-articular tissue primary cancer and metastatic secondary cancer, endocrine disorders osteoporosis, and exogenous high-energy injury, etc. All of the above reasons can cause a series of changes in the histopathology of various tissues in the joint cavity, such as arthritis, osteoarthritis, synovitis, patellar softening, meniscus injury, cartilage detachment, and subchondral bone sclerosis. All of the above injuries and degeneration of the structures related to the knee joint can cause pain, locking, stiffness, gait claudication, gait instability, muscle weakness, and other symptoms, which are collectively referred to as knee disease.

[0003] Almost all knee diseases can cause muscle weakness. According to medical research analysis, KOA-PT movement can help restore knee muscle strength by swinging the hip joint to drive the knee joint surface without contact and the movement of the knee joint capsule. At the same time, KOA-PT movement can greatly increase the amount and speed of synovial fluid circulation in the knee joint cavity, which can ultimately prevent the aggravation of the degenerative tissues and ultimately repair the function of the degenerative and damaged tissues in the knee joint cavity. At the same time, KOA-PT movement can also greatly increase the amount and speed of synovial fluid circulation in the knee joint cavity, which can lead to a large number of inflammatory factors in the knee joint cavity being carried away into the blood circulation and being removed from the body, thereby reducing or even eliminating knee pain.

[0004] KOA-PT modern standard leg swinging therapy (Knee Osteoarthritis-Pendulum Therapy, KOA-PT) is a more accurate and standardized continuous rehabilitation treatment method that specifically treats knee disease by swinging the leg from the pain symptoms of knee disease combined with muscle weakness around the knee joint to correct the pathological basis of knee disease. KOA-PT can cause a decrease in intra-articular pressure, thereby promoting blood circulation, synovial fluid circulation, and metabolism of related tissues inside and outside the joint cavity. At the same time, KOA-PT can also efficiently exercise the muscle strength of the anterior and posterior flexor and extensor muscle groups of the leg, and greatly improve the sensitivity of the lower limb proprioceptors.

[0005] Medical research has proved that open slit flexion and extension exercise has a positive effect on the treatment of pericapsular diseases. Through the structure of the electric machine, the patient's corresponding joint is repeatedly slit flexion and extension, and continuous passive movement can stimulate the joint to produce a benign cycle of physiological synovial fluid, reduce joint swelling, and prevent or treat joint motion amplitude reduction, joint stiffness and venous thrombosis caused or possibly caused by trauma or lack of exercise, etc.

[0006] At present, the Chinese patent application "Treatment and rehabilitation equipment for knee joint degenerative diseases based on KOAPT therapy" (publication number: CN 113952677 A) proposes a KOAPT therapy implementation exercise machine that can standardize and supervise the user to perform leg swinging exercise according to the KOAPT standard action, help KOA patients overcome the physical and psychological pain and non-compliance during the treatment process, and fundamentally solve the KOA pain of patients through continuous standard and long-term repeated KOAPT exercise. However, this rehabilitation treatment equipment is only suitable for patients who can stand by themselves and cannot meet the clinical rehabilitation treatment requirements of patients with standing difficulties of K-L classification level two / three or above, who need to use both horizontal training and vertical training. SUMMARY

[0007] In view of the above shortcomings of the prior art, the motion rehabilitation treatment equipment for knee joint degenerative diseases based on KOAPT therapy provided by the present application is aimed at pericapsular diseases to improve the muscle strength of each antagonistic muscle group around the knee, enhance the absorption of inflammatory factors in the joint cavity, accelerate the repair of each related structure and tissue around the knee, prevent knee stiffness and soft tissue adhesion; enable the patient to stand on the machine base with the non-treatment leg in the state of non-treatment leg, or enable the patient to lie on the bed directly above the machine base in the state of non-treatment leg, and perform swing training on the treatment leg.

[0008] In order to achieve the above-mentioned purpose, the application researches a knee joint degenerative disease motion rehabilitation treatment instrument based on KOA-PT therapy, which comprises a base placed on the ground and used for standing the non-treatment leg of a patient, and a frame fixedly connected with the base at one end and capable of ascending and descending at the other end, which is arranged close to the end of the treatment leg of the patient on the upper surface of the base, wherein the ascending end of the frame is swingably connected with a swing arm capable of ascending and descending and arranged in suspension close to the side of the treatment leg of the patient, the lower part of the swing arm is provided with a footrest with an L-shaped vertical section and used for placing the treatment leg of the patient, which is capable of ascending and descending along the axial direction of the swing arm, sliding left and right along the radial direction of the swing arm and rotating around the lower part of the swing arm, and the L-shaped upper part of the footrest is fixedly connected with a C-shaped clamp with a horizontal section and used for clamping the lower leg of the treatment leg of the patient close to the side of the treatment leg of the patient, so that the patient can swing the treatment leg while standing on the non-treatment leg on the base, or the patient can swing and stretch the treatment leg while lying on the bed above the base or sitting on the chair on the side.

[0009] Further, a gasket, an L-shaped bracket arranged in mirror image with the L-shaped bracket of the footrest and clamped with the lower end of the swing arm are sequentially arranged between the L-shaped upper part of the footrest and the lower part of the swing arm, the L-shaped bracket has a cavity structure in the vertical direction and a solid bottom plate structure in the horizontal direction, a sliding plate is clamped in the vertical cavity of the L-shaped bracket, and the sliding plate is in sliding and locking connection with the bracket. The footrest is mainly used for guiding the stretching and bending when lying, and the fixed track of the following stroke is used to prevent the leg from stretching and bending according to the preset track.

[0010] Further, a first rotating shaft is penetrated through the footrest, the gasket, the bracket and the sliding plate, and the first rotating shaft is locked by a first locking nut located outside the sliding plate.

[0011] Further, the lower end of the swing arm has a port structure, and the L-shaped horizontal bottom plate of the bracket is in left and right sliding connection with the port structure, three sides and one side inside the L-shaped horizontal bottom plate of the bracket are provided with a surrounding frame, and the surrounding frame is clamped with the outer periphery of the swing arm.

[0012] Further, the swing arm sequentially comprises a first telescopic pipe, a second telescopic pipe and a swing arm support connected in head-tail mode from the bottom end to the top end.

[0013] Further, the frame comprises a frame assembly, and the frame assembly-1 is provided with a frame shell with openings on the left and right sides.

[0014] Further, the frame assembly comprises a frame support fixed on the upper surface of the base and in a cavity structure, a first fixing frame embedded in the base 1 is arranged inside the cavity of the frame support, a second electric push rod arranged vertically is fixedly connected in the first fixing frame, a second fixing frame is fixedly connected at the telescopic end of the second electric push rod, and a shelter is fixedly connected to the upper surface of the second fixing frame.

[0015] Further, a speed reducer arranged vertically along the rotation axis is fixedly connected to the lower end surface of the shelter, a rotating motor coaxially arranged with the speed reducer is drivingly connected to the bottom end of the speed reducer, a main shaft is drivingly connected to the output end of the speed reducer, and a swing arm is fixedly connected to the end close to the patient's treatment leg of the main shaft.

[0016] Further, an angle sensor for monitoring the rotation angle and rotation speed of the main shaft in real time is arranged on the frame support.

[0017] Further, the base comprises a base support arranged in a day type along the left-right direction, a base arranged horizontally is fixedly connected to the upper end of the base support, and a support table for the patient to stand on is arranged on the upper surface of the base corresponding to the non-treatment leg of the patient.

[0018] Further, a vibrator for prompting the user of an abnormal condition is arranged at the position of the support table corresponding to the bottom end of the base.

[0019] Further, the C-shaped clamp comprises a C-shaped gasket, and a C-shaped soft pad is wrapped around the outer periphery of the C-shaped gasket.

[0020] Further, a support frame for sleeving the patient and capable of adjusting the peripheral size according to the body type of the patient is fixedly connected to the end close to the treatment leg of the patient of the frame.

[0021] Further, the support frame comprises a right telescopic pipe fixedly supported at the telescopic end of the frame and arranged horizontally in front and back, a front telescopic pipe arranged horizontally in suspension is connected to the front end of the right telescopic pipe, a rear telescopic pipe arranged horizontally in suspension is connected to the rear end of the right telescopic pipe, and a left telescopic pipe arranged horizontally in suspension is connected between the left end of the front telescopic pipe and the left end of the rear telescopic pipe.

[0022] Further, a turnover shaft penetrating through the telescopic end of the frame is arranged at intervals on the right side of the right telescopic pipe and connected between the left end of the front telescopic pipe and the left end of the rear telescopic pipe.

[0023] Further, the turnover shaft comprises an outer turnover shaft arranged horizontally in front and back and in a tubular shape, and inner turnover shafts coaxially arranged with the outer turnover shaft are respectively and slidingly sleeved at both ends in the shaft of the outer turnover shaft.

[0024] Further, the inner rotating shafts at both ends of the rotating shaft are connected with the front telescopic pipe and the rear telescopic pipe through third locking screws respectively.

[0025] Further, handrails capable of adjusting height up and down are arranged on the front sleeve pipe, the rear sleeve pipe, the left sleeve pipe and the right sleeve pipe.

[0026] Further, the handrail frame comprises an inverted L-shaped handrail support which is inserted on the outer side surface of the front sleeve pipe, or the outer side surface of the rear sleeve pipe, or the outer side surface of the left sleeve pipe, or the inner side surface of the right sleeve pipe.

[0027] Further, the horizontal lower surface of the inverted L-shaped structure of the handrail support is fixedly provided with a first display support capable of extending to the outer side of the soft pad and used for supporting a display.

[0028] The present application has the following advantages:

[0029] 1. The present application assists patients with peripatellar diseases to perform exercise rehabilitation treatment, so as to improve the muscle strength of each antagonistic muscle group around the knee, enhance the absorption of inflammatory factors in the joint cavity, accelerate the repair of each related structure around the knee, and prevent the knee joint from being stiff and the soft tissues from being adhered.

[0030] 2. In the vertical training state, the inner size of the support frame is adjusted to adapt to the size of the patient, the left telescopic pipe in the support frame is opened, the patient enters the support frame, the foot of the non-treatment leg is placed on the support table, the foot of the treatment leg is placed on the pedal, the lower leg is fixed in the C-shaped clamp, and then the left telescopic pipe in the support frame is locked.

[0031] 3. In the horizontal training state, the left telescopic pipe of the support frame is unlocked and then the support frame is flipped downward by 90 degrees, the treatment and nursing device is placed beside the bed, the patient lies on the bed with the legs stretched out naturally, the lifting mechanism of the rack assembly is controlled to adjust the height of the swing arm as a whole, and the lengths of the first and second telescopic pipes of the swing arm are comprehensively adjusted, so that the patient places the foot of the treatment leg on the pedal and fixes the lower leg in the C-shaped clamp.

[0032] The KOA-PT therapy based sports rehabilitation treatment device for periknee diseases enables the patient to perform swing training on the treatment leg in a state of standing on the base with the non-treatment leg, or enables the patient to perform swing flexion and extension training on the treatment leg in a state of lying on a bed above the base or a chair above the side. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A perspective view of the KOA-PT therapy based sports rehabilitation treatment device for periknee diseases according to the present application;

[0034] Figure 2 A standing training state view of the KOA-PT therapy based sports rehabilitation treatment device for periknee diseases according to the present application;

[0035] Figure 3 A lying training state view of the KOA-PT therapy based sports rehabilitation treatment device for periknee diseases according to the present application;

[0036] Figure 4 A sectional view of the pedal;

[0037] Figure 5 A perspective view of the bracket, the surrounding frame and the base plate in Figure 1 after installation;

[0038] Figure 6 A sectional view of A-A in Figure 5 ;

[0039] Figure 7 A perspective view of the bracket in Figure 1 ;

[0040] Figure 8 A perspective view of the bracket, the surrounding frame and the base plate in Figure 1 after disassembly;

[0041] Figure 9 A vertical sectional view of the bracket, the surrounding frame and the base plate in Figure 1 after installation;

[0042] Figure 10 A perspective view of the swing arm (without the swing arm support shell and the soft pad) in Figure 1 ;

[0043] Figure 11 An exploded view of the primary telescopic pipe in Figure 1 ;

[0044] Figure 12 An exploded view of the secondary telescopic pipe in Figure 1 ;

[0045] Figure 13 is a longitudinal sectional view of the secondary telescopic pipe in Figure 1 ;

[0046] Figure 14 is a sectional view of B-B in Figure 13 ;

[0047] Figure 15 is an exploded view of the secondary pipe shell of the secondary telescopic pipe in Figure 1 ;

[0048] Figure 16 is an exploded view of the swing arm support in Figure 1 ;

[0049] Figure 17 is a sectional view of the swing arm support and the secondary pipe shell and the secondary cover plate after being contracted in Figure 1 ;

[0050] Figure 18 is a longitudinal sectional view of the swing arm in Figure 1 ;

[0051] Figure 19 is a bottom view of the support frame (closed state) in Figure 1 ;

[0052] Figure 20 is a partial enlarged view of C in Figure 19 ;

[0053] Figure 21 is a top view of the support frame (closed state) in Figure 1 ;

[0054] Figure 22 is a perspective view of the front telescopic pipe in Figure 21 ;

[0055] Figure 23 is a top view of the support frame (opened later) in Figure 1 ;

[0056] Figure 24 is a perspective view of the rear telescopic pipe and the handrail frame after being installed in Figure 1 ;

[0057] Figure 25 is an exploded view of the frame in Figure 1 ;

[0058] Figure 26 is a front view of the transmission mechanism in the frame assembly in Figure 29 ;

[0059] Figure 27 For Figure 29 Rear view schematic diagram of the transmission mechanism in the rack assembly;

[0060] Figure 28 For Figure 29 Longitudinal sectional schematic diagram of the transmission mechanism in the rack assembly;

[0061] Figure 29 For Figure 1 Top view schematic diagram of the rack in the machine;

[0062] Figure 30 For Figure 1 Bottom view schematic diagram of the rack in the machine;

[0063] In the figure: rack 1, rack 2, support frame 3, swing arm 4, pedal 5, C clamp 6, washer 7, bracket 8, sliding plate 9, first rotating shaft 10, surrounding frame 11, bottom plate 12, first pressing plate 13;

[0064] The rack 1 comprises: rack support 1-1, base 1-2, support table 1-3, vibrator 1-4, moving wheel 1-5;

[0065] The rack 2 comprises: rack assembly 2-1, rack shell 2-2, rack left shell 2-3, rack right shell 2-4;

[0066] The rack assembly 2-1 comprises: rack support 2-1-1, guide rail fixed plate 2-1-2, third opening 2-1-3, third guide rail 2-1-4, first fixed frame 2-1-5, second electric push rod 2-1-6, second fixed frame 2-1-7, shelter 2-1-8, overturning shaft sleeve pipe 2-1-9, third sliding block 2-1-10, through hole 2-1-11, passing hole 2-1-12, speed reducer 2-1-13, rotating motor 2-1-14, first bevel gear 2-1-15, second bevel gear 2-1-16, connecting pin 2-1-17, main shaft 2-1-18, bearing 2-1-19, shaft sleeve 2-1-20, angle sensor 2-1-21, sensor fixed plate 2-1-22;

[0067] The rack shell 2-2 comprises: second display support 2-2-1;

[0068] The support frame 3 comprises: front telescopic pipe 3-1, rear telescopic pipe 3-2, left telescopic pipe 3-3, right telescopic pipe 3-4, overturning shaft 3-5, handrail frame 3-6, first display support 3-7;

[0069] The front telescopic pipe 3-1 comprises: front outer sleeve pipe 3-1-1, front inner sleeve pipe 3-1-2, front sliding chute 3-1-3, front locking nut 3-1-4, fourth rotating shaft 3-1-5;

[0070] The rear telescopic pipe 3-2 comprises: a rear outer sleeve pipe 3-2-1, a rear inner sleeve pipe 3-2-2, a rear sliding groove 3-2-3, a rear locking nut 3-2-4, a plug 3-2-5, a first plug hole 3-2-6;

[0071] The left telescopic pipe 3-3 comprises: a left outer sleeve pipe 3-3-1, a left inner sleeve pipe 3-3-2, a left sliding groove 3-3-3, a left locking nut 3-3-4, a plug groove 3-3-5, a first plug 3-3-6;

[0072] The right telescopic pipe 3-4 comprises: a right outer sleeve pipe 3-4-1, a right inner sleeve pipe 3-4-2, a right sliding groove 3-4-3, a right locking nut 3-4-4, a third locking nut 3-4-5, a second fixed block 3-4-6;

[0073] The turnover shaft 3-5 comprises: an outer turning shaft 3-5-1, an inner turning shaft 3-5-2, a third locking screw 3-5-3;

[0074] The handrail frame 3-6 comprises: a handrail support 3-6-1, a second plug 3-6-2, a second plug hole 3-6-3, a fourth sliding groove 3-6-4, a fourth locking nut 3-6-5, a support plate 3-6-6, a soft pad 3-6-7;

[0075] The swing arm 4 comprises: a swing arm support 4-1, a secondary telescopic pipe 4-2, a primary telescopic pipe 4-3, an end cover 4-4;

[0076] The swing arm support 4-1 comprises: a swing arm support shell 4-1-1, a second opening 4-1-2, a second pressing plate 4-1-3, a second guide rail 4-1-4, an electric push rod support 4-1-5, a first electric push rod 4-1-6, a second turning shaft 4-1-7, a third turning shaft 4-1-8, a soft pad 4-1-9;

[0077] The secondary telescopic pipe 4-2 comprises: a secondary pipe shell 4-2-1, a secondary cover plate 4-2-2, a variable-diameter inner pipe 4-2-3, a first guide rail 4-2-4, a fixed groove 4-2-5, a second sliding block 4-2-6;

[0078] The primary telescopic pipe 4-3 comprises: a groove 4-3-1, a stepped groove 4-3-2, a first opening 4-3-3, a first fixed block 4-3-4, a first sliding block 4-3-5;

[0079] The C-shaped clamp 6 comprises: a C-shaped gasket 6-1, a C-shaped soft pad 6-2;

[0080] The bracket 8 comprises: a first sliding groove 8-1, a second sliding groove 8-2, a first locking screw 8-3, a third sliding groove 8-4;

[0081] The first turning shaft 10 comprises: a first locking nut 10-1;

[0082] The first pressure plate 13 includes: a second locking nut 13-1 and a second locking screw 13-2. Detailed Implementation

[0083] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0084] This invention is a sports rehabilitation therapy device for knee periarthritis based on KOA-PT therapy, such as... Figures 1-3 As shown, the device includes a base 1 placed on the ground for a patient to stand on with their non-treatment leg. A frame 2, with one end fixedly connected to the base 1 and the other end capable of vertical extension, is located on the upper surface of the base 1 near the patient's treatment leg. A support frame 3, for fitting the patient into the frame and whose outer dimensions can be adjusted according to the patient's chest circumference, is fixedly connected to the extension end of the frame 2 near the patient's treatment leg. A swing arm 4, capable of vertical extension and suspended, is swayingly connected to the extension end of the frame 2 near the patient's treatment leg and located below the support frame 3. The lower part of the swing arm 4 is close to the patient's treatment leg. A pedal 5 with a vertical L-shaped cross-section is provided on the side for supporting the patient's foot in the treatment leg. This pedal 5 can slide up and down along the axis of the swing arm 4, slide left and right along the radial direction of the swing arm 4, and rotate around the lower part of the swing arm 4. A C-shaped clamp with a horizontal C-shaped cross-section is fixedly connected to the upper part of the L-shaped pedal 5 near the patient's treatment leg. This allows the patient to perform swing training on the treatment leg while the non-treatment leg is standing on the base 1, or to perform flexion and extension training on the treatment leg while lying flat on the bed directly above the base 1.

[0085] Preferably, the C-clamp 6 includes a C-shaped washer 6-1, and the outer periphery of the C-shaped washer 6-1 is wrapped with a C-shaped soft pad 6-2.

[0086] like Figures 4-9 As shown, a washer 7 and an L-shaped bracket 8, which are arranged in a mirror image of the L-shaped pedal 5 and are engaged with the lower end of the swing arm 4, are sequentially provided between the upper L-shaped part of the pedal 5 and the lower part of the swing arm 4. The L-shaped bracket 8 has a cavity structure in the vertical direction and a solid base plate structure in the horizontal direction.

[0087] Specifically, the front and rear sides of the L-shaped vertical cavity of the bracket 8 are both carved with second sliding grooves 8-2 arranged vertically. A sliding plate 9 is installed in the L-shaped vertical cavity of the bracket 8. The sliding plate 9 is connected to the bracket 8 by a first locking screw 8-3 provided in the second sliding groove 8-2. When the first locking screw 8-3 is loosened, the sliding plate 9 can slide up and down along the second sliding groove 8-2 in the bracket 8. When the first locking screw 8-3 is tightened, the sliding plate 9 can be fixed in the bracket 8.

[0088] A first rotating shaft 10 passes through the pedal 5, washer 7, bracket 8, and slide plate 9, and is locked by a first locking nut 10-1 located on the outside of the slide plate 9. The L-shaped vertical cavity of the bracket 8 has a first sliding groove 8-1 arranged vertically near the pedal 5 for the first rotating shaft 10 to pass through. When the slide plate 9 slides up and down along the second sliding groove 8-2, the first rotating shaft 10 can drive the washer 7 and the pedal 5 to slide up and down simultaneously along the axis of the swing arm 4. By adjusting the tightness of the first locking nut 10-1, the friction between the washer 7 and the pedal 5 is adjusted, thereby enabling the pedal 5 to rotate around the lower part of the swing arm 4.

[0089] Preferably, the lower end of the swing arm 4 has a mouth-shaped structure, and the middle part of the left and right sides of the mouth-shaped structure has an upwardly extending groove 4-3-1 carved from the bottom end face. The upper and lower sides of the mouth-shaped structure away from the lower end face have inwardly extending stepped grooves 4-3-2 whose bottom surface is flush with the top surface of the groove 4-3-1.

[0090] The L-shaped horizontal base plate of the bracket 8 has two third sliding grooves 8-4 that match the grooves 4-3-1 and 4-3-2, allowing the lower end of the swing arm 4 to slide left and right within them, arranged in a strip shape. A frame 11 is provided on the three outer sides and one inner side of the L-shaped horizontal base plate of the bracket 8. A first pressure plate 13 is engaged between the frame 11 and the outer periphery of the swing arm 4, allowing relative sliding with the L-shaped horizontal base plate of the bracket 8. A base plate 12 is provided on the lower surface of the L-shaped horizontal base plate of the bracket 8, which is fixedly connected to the frame 11 and allows relative sliding with the L-shaped horizontal base plate of the bracket 8. This allows the bracket 8 to slide left and right along the third sliding grooves 8-4 within the cavity formed by the base plate 12, the frame 11, and the first pressure plate 13, thereby allowing the pedal 5, which is fixedly connected to the bracket 8, to slide left and right radially along the swing arm 4.

[0091] Preferably, a second locking nut 13-1 is embedded at the junction of the first pressure plate 13 and the L-shaped horizontal base plate of the bracket 8. The second locking nut 13-1 is threaded with a second locking screw 13-2 on the outer side of the first pressure plate 13. By adjusting the tightness of the second locking screw 13-2, the friction between the second locking nut 13-1 and the upper surface of the first pressure plate 13 is adjusted, thereby realizing the fixation or sliding of the bracket 8 in the left and right directions.

[0092] like Figures 10-18 As shown, the swing arm 4 includes, from bottom to top, a primary telescopic tube 4-3, a secondary telescopic tube 4-2, and a swing arm bracket 4-1 connected end to end. The top of the swing arm bracket 4-1 is covered with an end cap 4-4.

[0093] Specifically, the primary telescopic pipe 4-3 is a strip-shaped mouth cavity, first openings 4-3-3 are excavated on the upper front and back sides of the primary telescopic pipe 4-3, each first opening 4-3-3 is fixedly connected with a first fixed block 4-3-4 for covering the corresponding first opening 4-3-3, and each first fixed block 4-3-4 is fixedly connected with a first sliding block 4-3-5 placed in the mouth cavity of the primary telescopic pipe 4-3.

[0094] The secondary telescopic pipe 4-2 includes a strip-shaped secondary pipe shell 4-2-1 in a U shape, a secondary cover plate 4-2-2 is arranged on the U-shaped opening end cover of the secondary pipe shell 4-2-1, a variable-diameter inner pipe 4-2-3 in a mouth shape is embedded in the secondary pipe shell 4-2-1 and arranged coaxially with the secondary pipe shell 4-2-1, the outer diameter of the upper left and right sides of the variable-diameter inner pipe 4-2-3 is equal to the inner diameter of the secondary pipe shell 4-2-1 and is fixedly connected with the secondary pipe shell 4-2-1, the outer diameters of the upper front and back sides and the middle and lower outer sides of the variable-diameter inner pipe 4-2-3 are smaller than the inner diameter of the secondary pipe shell 4-2-1, so that the primary telescopic pipe 4-3 can be inserted into the gap formed between the variable-diameter inner pipe 4-2-3 and the secondary pipe shell 4-2-1, and the front and back outer sides of the variable-diameter inner pipe 4-2-3 are provided with first guide rails 4-2-4 matched with the first sliding blocks 4-3-5 at positions corresponding to the insertion tracks of the first sliding blocks 4-3-5, so that the primary telescopic pipe 4-3 can slide up and down along the first guide rails 4-2-4 in the secondary telescopic pipe 4-2 under the action of manual pushing and pulling force.

[0095] The front and back outer sides of the secondary pipe shell 4-2-1 are provided with fixed grooves 4-2-5, each fixed groove 4-2-5 is installed with a second sliding block 4-2-6, the swing arm support 4-1 includes a swing arm support shell 4-1-1 which can be sleeved around the periphery of the secondary telescopic pipe 4-2, is arranged coaxially with the secondary telescopic pipe 4-2, and is a strip-shaped mouth cavity, second openings 4-1-2 are excavated on the front and back sides of the swing arm support shell 4-1-1 and arranged along the axial direction of the swing arm support shell 4-1-1, each second opening 4-1-2 is fixedly connected with a second pressing plate 4-1-3 for covering the corresponding second opening 4-1-2, and each second pressing plate 4-1-3 is fixedly connected with a second guide rail 4-1-4 placed in the mouth cavity of the swing arm support shell 4-1-1 and matched with the second sliding block 4-2-6, so that the secondary telescopic pipe 4-2 can slide up and down along the second guide rail 4-1-4 in the swing arm support shell 4-1-1.

[0096] An electric push rod bracket 4-1-5 is fixedly connected to the upper port of the swing arm bracket housing 4-1-1. A first electric push rod 4-1-6 is provided in the orifice cavity of the swing arm bracket housing 4-1-1, extending axially along the swing arm bracket housing 4-1-1, coaxially arranged with the swing arm bracket housing 4-1-1, with its fixed end fixedly connected to the electric push rod bracket 4-1-5 and its telescopic end fixedly connected to the lower end of the variable diameter inner tube 4-2-3. Thus, when the telescopic end of the first electric push rod 4-1-6 moves telescopically along the axial direction of the swing arm bracket housing 4-1-1, it drives the secondary telescopic tube 4-2 to move telescopically synchronously.

[0097] Specifically, the fixed end of the first electric push rod 4-1-6 is inserted into the electric push rod bracket 4-1-5 and fixed by a second rotating shaft 4-1-7 that horizontally penetrates the electric push rod bracket 4-1-5 and the fixed end of the first electric push rod 4-1-6; the telescopic end of the first electric push rod 4-1-6 is fixed by a third rotating shaft 4-1-8 that horizontally penetrates the variable diameter inner tube 4-2-3 and the telescopic end of the first electric push rod 4-1-6.

[0098] Preferably, the first electric push rod 4-1-6 controls the extension stroke and extension speed of the telescopic end of the first electric push rod 4-1-6 through commands output by the central controller.

[0099] Preferably, a soft pad 4-1-9 is fixedly provided on the outer shell 4-1-1 of the swing arm bracket near the patient's treatment leg.

[0100] like Figures 19-24 As shown, the support frame 3 includes a right telescopic tube 3-4 fixedly supported at the telescopic end of the frame 2 and arranged horizontally front to back. The front end of the right telescopic tube 3-4 is connected to a front telescopic tube 3-1 arranged horizontally in the air. The rear end of the right telescopic tube 3-4 is connected to a rear telescopic tube 3-2 arranged horizontally in the air. A left telescopic tube 3-3 is provided on the left side of the right telescopic tube 3-4, connecting the left end of the front telescopic tube 3-1 and the left end of the rear telescopic tube 3-2, and arranged horizontally in the air.

[0101] Specifically, such as Figure 22 As shown, the front telescopic tube 3-1 includes a front outer sleeve 3-1-1 arranged horizontally to the left and right. A front inner sleeve 3-1-2 arranged coaxially with the front outer sleeve 3-1-1 is sleeved inside the front outer sleeve 3-1-1. A front sliding groove 3-1-3 is chiseled on the left side of the bottom end face of the front outer sleeve 3-1-1. A front locking nut 3-1-4 that can be inserted into the front outer sleeve 3-1-1 and the front inner sleeve 3-1-2 is provided in the front sliding groove 3-1-3. When the front locking nut 3-1-4 is loosened, the front inner sleeve 3-1-2 can slide to the left along the front sliding groove 3-1-3 inside the front outer sleeve 3-1-1. When the front locking nut 3-1-4 is tightened, the front inner sleeve 3-1-2 can be fixed inside the front outer sleeve 3-1-1.

[0102] The rear telescopic pipe 3-2 comprises a left and right horizontally arranged rear outer sleeve pipe 3-2-1, the rear outer sleeve pipe 3-2-1 is sleeved with a rear inner sleeve pipe 3-2-2 coaxially arranged in the rear outer sleeve pipe 3-2-1, a rear sliding groove 3-2-3 is opened on the left side of the bottom end surface of the rear outer sleeve pipe 3-2-1, a rear locking nut 3-2-4 capable of being inserted into the rear outer sleeve pipe 3-2-1 and the rear inner sleeve pipe 3-2-2 is arranged in the rear sliding groove 3-2-3, when the rear locking nut 3-2-4 is loosened, the rear inner sleeve pipe 3-2-2 can slide leftwards in the rear outer sleeve pipe 3-2-1 along the rear sliding groove 3-2-3, when the rear locking nut 3-2-4 is tightened, the rear inner sleeve pipe 3-2-2 can be fixed in the rear outer sleeve pipe 3-2-1. The structure and working principle of the rear telescopic pipe 3-2 are similar to those of the above-mentioned Figure 22 and will not be repeated here.

[0103] The left telescopic pipe 3-3 comprises a front and rear horizontally arranged left outer sleeve pipe 3-3-1, both ends of the left outer sleeve pipe 3-3-1 are respectively sleeved with a left inner sleeve pipe 3-3-2 coaxially arranged in the left outer sleeve pipe 3-3-1, left sliding grooves 3-3-3 are respectively opened on the front and rear sides of the bottom end surface of the left outer sleeve pipe 3-3-1, a left locking nut 3-3-4 capable of being inserted into the left outer sleeve pipe 3-3-1 and the left inner sleeve pipe 3-3-2 is respectively arranged in each left sliding groove 3-3-3, when the left locking nut 3-3-4 is loosened, the corresponding left inner sleeve pipe 3-3-2 can slide outwards in the left outer sleeve pipe 3-3-1 along the corresponding left sliding groove 3-3-3, when the left locking nut 3-3-4 is tightened, the corresponding left inner sleeve pipe 3-3-2 can be fixed in the left outer sleeve pipe 3-3-1. The structure and working principle of the left telescopic pipe 3-3 are similar to those of the above-mentioned Figure 22 and will not be repeated here.

[0104] The right telescopic pipe 3-4 comprises a front and rear horizontally arranged right outer sleeve pipe 3-4-1, both ends of the right outer sleeve pipe 3-4-1 are respectively sleeved with a right inner sleeve pipe 3-4-2 coaxially arranged in the right outer sleeve pipe 3-4-1, right sliding grooves 3-4-3 are respectively opened on the front and rear sides of the bottom end surface of the right outer sleeve pipe 3-4-1, a right locking nut 3-4-4 capable of being inserted into the right outer sleeve pipe 3-4-1 and the right inner sleeve pipe 3-4-2 is respectively arranged in each right sliding groove 3-4-3, when the right locking nut 3-4-4 is loosened, the corresponding right inner sleeve pipe 3-4-2 can slide outwards in the right outer sleeve pipe 3-4-1 along the corresponding right sliding groove 3-4-3, when the right locking nut 3-4-4 is tightened, the corresponding right inner sleeve pipe 3-4-2 can be fixed in the right outer sleeve pipe 3-4-1. The structure and working principle of the right telescopic pipe 3-4 are similar to those of the above-mentioned Figure 22 and will not be repeated here.

[0105] The left end of the front telescopic pipe 3-1 is fixedly connected with a fourth rotating shaft 3-1-5 arranged vertically near the side of the left telescopic pipe 3-3, and the front telescopic pipe 3-1 is connected with the left telescopic pipe 3-3 through the fourth rotating shaft 3-1-5.

[0106] Preferably, the left end of the rear telescopic pipe 3-2 is provided with a plug 3-2-5, a first bolt hole 3-2-6 is opened vertically in the plug 3-2-5, the rear end of the left telescopic pipe 3-3 is provided with a plug groove 3-3-5 matched with the plug 3-2-5, the upper end of the plug groove 3-3-5 is penetrated by a first bolt 3-3-6 matched with the first bolt hole 3-2-6, when the plug 3-2-5 is inserted into the plug groove 3-3-5 and the first bolt 3-3-6 is inserted into the first bolt hole 3-2-6, the rear telescopic pipe 3-2 is connected with the left telescopic pipe 3-3; when the first bolt 3-3-6 is pulled out of the first bolt hole 3-2-6 and the left telescopic pipe 3-3 is pulled outwards, the plug groove 3-3-5 is separated from the plug 3-2-5, and the left telescopic pipe 3-3 is opened around the fourth rotating shaft 3-1-5. When it needs to be reset, the left telescopic pipe 3-3 is turned to the original position and inserted into the first bolt 3-3-6 to keep the lock with the rear telescopic pipe 3-2.

[0107] Specifically, the right inner sleeve 3-4-2 at both ends of the right telescopic pipe 3-4 is connected with the front telescopic pipe 3-1 and the rear telescopic pipe 3-2 through a third locking nut 3-4-5 respectively. In another embodiment, by simplifying the design, the ring frame is not telescopic, and the handrail is translated and telescoped.

[0108] In this way, the length of each telescopic pipe can be adjusted, so that the peripheral size of the support frame 3 surrounded by the front telescopic pipe 3-1, the rear telescopic pipe 3-2, the left telescopic pipe 3-3 and the right telescopic pipe 3-4 can be adjusted.

[0109] Preferably, the front outer sleeve 3-1-1, the rear outer sleeve 3-2-1, the left outer sleeve 3-3-1 and the right outer sleeve 3-4-1 are all provided with a handrail frame 3-6 capable of adjusting the height up and down.

[0110] The handrail frame 3-6 comprises an inverted L-shaped handrail support 3-6-1 inserted on the outer side of the front outer sleeve 3-1-1, or the outer side of the rear outer sleeve 3-2-1, or the outer side of the left outer sleeve 3-3-1, or the inner side of the right outer sleeve 3-4-1, and a second bolt 3-6-2 arranged vertically is fixedly arranged on the side of the front outer sleeve 3-1-1, or the rear outer sleeve 3-2-1, or the left outer sleeve 3-3-1, or the right outer sleeve 3-4-1; and a second bolt hole 3-6-3 arranged vertically and matched with the second bolt 3-6-2 is fixedly arranged on the outer side of the front outer sleeve 3-1-1, the outer side of the rear outer sleeve 3-2-1, the outer side of the left outer sleeve 3-3-1 or the inner side of the right outer sleeve 3-4-1.

[0111] The fourth sliding groove 3-6-4 is drilled on the side surface of the handrail support 3-6-1 close to the front outer sleeve 3-1-1, or the rear outer sleeve 3-2-1, or the left outer sleeve 3-3-1, or the right outer sleeve 3-4-1, and the fourth locking nut 3-6-5 abutting against the front outer sleeve 3-1-1, or the rear outer sleeve 3-2-1, or the left outer sleeve 3-3-1, or the right outer sleeve 3-4-1 is arranged in the fourth sliding groove 3-6-4, when the fourth locking nut 3-6-5 is loosened, the second bolt 3-6-2 can slide up and down in the second bolt hole 3-6-3 along the fourth sliding groove 3-6-4, when the fourth locking nut 3-6-5 is tightened, the second bolt 3-6-2 can be fixed in the second bolt hole 3-6-3.

[0112] Preferably, the horizontal upper surface of the inverted L-shaped structure of the handrail support 3-6-1 is fixedly provided with a horizontally arranged support plate 3-6-6, and the upper surface of the support plate 3-6-6 is fixedly provided with a soft pad 3-6-7, and the soft pad 3-6-7 and the support plate 3-6-6 can be locked by screws or bonded.

[0113] Preferably, the horizontal lower surface of the inverted L-shaped structure of the handrail support 3-6-1 is fixedly provided with a first display support 3-7 which can extend to the outside of the soft pad 3-6-7 and is used for supporting a display.

[0114] The bottom end of the right outer sleeve 3-4-1 is fixedly connected with a second fixed block 3-4-6, and the second fixed block 3-4-6 is fixedly connected with the rack 2 at the telescopic end close to the rack 2.

[0115] The right telescopic tube 3-4 is provided with a turnover shaft 3-5 which is connected between the left end of the front telescopic tube 3-1 and the left end of the rear telescopic tube 3-2 and penetrates the telescopic end of the rack 2, and when the left telescopic tube 3-3 is opened around the fourth rotating shaft 3-1-5, the connection between the right telescopic tube 3-4 and the front telescopic tube 3-1 and the rear telescopic tube 3-2 is released, so that the front telescopic tube 3-1 and the rear telescopic tube 3-2 can be turned down around the turnover shaft 3-5.

[0116] The turnover shaft 3-5 includes an outer rotating shaft 3-5-1 which is horizontally arranged and tubular, and the inner rotating shaft 3-5-2 which is coaxially arranged with the outer rotating shaft 3-5-1 is slidably sleeved at both ends of the shaft of the outer rotating shaft 3-5-1, and when the lengths of the left telescopic tube 3-3 and the right telescopic tube 3-4 are adjusted, the inner rotating shaft 3-5-2 can synchronously slide outwards in the shaft of the outer rotating shaft 3-5-1.

[0117] The inner rotating shaft 3-5-2 at both ends of the turnover shaft 3-5 is connected with the front telescopic tube 3-1 and the rear telescopic tube 3-2 through the third locking screw 3-5-3 respectively.

[0118] As shown in Figures 25-28 The rack 2 comprises a rack assembly 2-1, which is peripherally provided with a rack shell 2-2 with openings on both left and right sides, the left end of the rack shell 2-2 is provided with a rack left shell 2-3, and the right end of the rack shell 2-2 is provided with a rack right shell 2-4.

[0119] Specifically, the rack assembly 2-1 comprises a rack support 2-1-1 fixed on the upper surface of the base 1 in a cavity structure, a guide rail fixed plate 2-1-2 is fixedly connected to the rack support 2-1-1 close to the treatment leg side of the patient, a third guide rail 2-1-4 arranged in the vertical direction is fixedly connected to the guide rail fixed plate 2-1-2 away from the treatment leg side of the patient, and a third opening 2-1-3 parallel to the third guide rail 2-1-4 is opened on the guide rail fixed plate 2-1-2.

[0120] A first fixing frame 2-1-5 embedded in the base 1 is arranged inside the cavity of the rack support 2-1-1, a second electric push rod 2-1-6 arranged in the vertical direction is fixedly connected in the first fixing frame 2-1-5, a second fixing frame 2-1-7 is fixedly connected to the telescopic end of the second electric push rod 2-1-6, a shelter 2-1-8 is fixedly connected to the upper surface of the second fixing frame 2-1-7, a turnover shaft sleeve 2-1-9 for sleeving the turnover shaft 3-5 is fixedly connected to the front and rear sides of the shelter 2-1-8, a third sliding block 2-1-10 matched with the third guide rail 2-1-4 is fixedly connected to the shelter 2-1-8 close to the treatment leg side of the patient, the second fixing block 3-4-6 passes through the third opening 2-1-3 and is fixedly connected to the shelter 2-1-8 close to the treatment leg side of the patient, so that the shelter 2-1-8 can move up and down with the telescopic end of the second electric push rod 2-1-6, and drive the support frame 3 to move up and down synchronously.

[0121] Preferably, the second electric push rod 2-1-6 controls the telescopic stroke and telescopic speed of the telescopic end of the second electric push rod 2-1-6 through the output instruction of the central controller.

[0122] Preferably, a second display support 2-2-1 for supporting a display is fixedly connected to the upper end of the rack shell 2-2.

[0123] A through hole 2-1-11 is opened in the shelter 2-1-8 below the second fixing block 3-4-6 close to the treatment leg side of the patient, and a through hole 2-1-12 is opened in the lower end surface of the shelter 2-1-8.

[0124] The lower end face of the container 2-1-8 is fixedly connected to a reducer 2-1-13 with its rotation axis arranged vertically, and the output end of the reducer 2-1-13 passes through a through hole 2-1-12. The bottom end of the reducer 2-1-13 is driven by a rotating motor 2-1-14 arranged coaxially with the reducer 2-1-13. The output end of the reducer 2-1-13 is driven by a first bevel gear 2-1-15 arranged coaxially with the reducer 2-1-13. The first bevel gear 2-1-15 meshes with a second bevel gear 2-1-16 (or directly with a straight...) arranged horizontally. (Implemented by an angle reducer), the second bevel gear 2-1-16 is internally connected to a connecting pin 2-1-17 arranged on the same axis as the second bevel gear 2-1-16. The connecting pin 2-1-17 is connected to a main shaft 2-1-18 arranged on the same axis as the second bevel gear 2-1-16 and passing through the through hole 2-1-11 near the end of the patient's treatment leg. The main shaft 2-1-18 is fixedly connected to a swing arm 4 near the end of the patient's treatment leg, thereby transmitting the rotation angle and speed of the rotating motor 2-1-14 to the main shaft 2-1-18, and then from the main shaft 2-1-18 to the swing arm 4.

[0125] The main shaft 2-1-18 is provided with a bearing 2-1-19 arranged on the same axis as the second bevel gear 2-1-16 on its outer periphery. The bearing 2-1-19 is provided with a bushing 2-1-20 arranged on the same axis as the second bevel gear 2-1-16 on its outer periphery and fixedly connected to the side of the container 2-1-8 near the patient's treatment leg.

[0126] Preferably, the connecting pin 2-1-17, located away from the patient's treatment leg, is also equipped with an angle sensor 2-1-21 arranged coaxially with the second bevel gear 2-1-16. This sensor is used to monitor the rotation angle and speed of the main shaft 2-1-18 in real time and feed back to the central controller. One end of the angle sensor 2-1-21 is fitted with a sensor fixing plate 2-1-22, and both ends of the sensor fixing plate 2-1-22 are fixed to the front and rear sides of the cabin 2-1-8. In another embodiment, photoelectric sensors are used to assist in finding the extreme positions of the sides and the midpoint, providing a protective function. A mechanical switch is added as a double safety measure, and the rotation speed is provided by a servo driver.

[0127] like Figures 29-30 As shown, the base 1 includes a base bracket 1-1 arranged in a U-shape in the left and right direction. A horizontally arranged base 1-2 is fixedly connected to the upper end of the base bracket 1-1. A support platform 1-3 is provided on the upper surface of the base 1-2, corresponding to the non-treatment leg of the patient, for the patient to stand on the non-treatment leg and for which an electronic scale is built-in. The four corners of the base 1-2 are provided with casters 1-5.

[0128] Preferably, a vibrator 1-4 for alerting the user to abnormal conditions is provided at the bottom end of the base 1-2 corresponding to the position of the support platform 1-3.

[0129] In the vertical training state, the inner size of the support frame 3 is adjusted to adapt to the chest size of the patient, the left telescopic pipe 3-3 in the support frame 3 is opened, the patient enters the support frame 3, the foot of the non-treatment leg is placed on the support platform 1-3, the foot of the treatment leg is placed on the pedal 5, the lower leg is fixed in the C clamp 6, and the left telescopic pipe 3-3 in the support frame 3 is locked; then the lifting mechanism in the rack assembly 2-1 is controlled, the height of the swing arm 4 is adjusted, the rotation center of the swing arm 4 and the position of the hip joint of the patient are substantially at the same height, the height of the handrail frame 3-6 is adjusted so that the arms of the patient can be comfortably supported on the soft pads 3-6-7 of the left telescopic pipe 3-3 and the right telescopic pipe 3-4, and the front and rear angle, the speed of swinging, the running time, and the rest time of the swing arm 4 are set, and the equipment is started to run.

[0130] When another leg training is needed, the left telescopic pipe 3-3 in the support frame 3 is unlocked, the patient gets out of the support frame 3, turns around and then enters the inside of the support frame 3, the foot of the non-treatment leg is placed on the support platform 1-3, the foot of the treatment leg is placed on the pedal 5, the lower leg is fixed in the C clamp 6, then the left telescopic pipe 3-3 in the support frame 3 is locked, and finally the front and rear angle, the speed of swinging, the running time, and the rest time of the swing arm 4 are set, and the equipment is started to run.

[0131] In the horizontal training state, the left telescopic pipe 3-3 in the support frame 3 is unlocked, the support frame 3 is turned down by 90 degrees, the treatment and nursing device is placed beside the bed, the patient lies flat on the bed with the legs naturally stretched out, then the lifting mechanism of the rack assembly 2-1 is controlled to adjust the height of the swing arm 4 as a whole, the lengths of the first telescopic pipe 4-3 and the second telescopic pipe 4-2 are comprehensively adjusted, the patient places the foot of the treatment leg on the pedal 5 and the lower leg in the C clamp 6, finally the front and rear angle, the speed of swinging, the running time, and the rest time of the swing arm 4 are set, and the equipment is started to run.

[0132] When another leg training is needed, the patient exchanges the positions of the head and the foot, lies flat on the bed with the legs naturally stretched out, places the foot of the treatment leg on the pedal 5 and the lower leg in the C clamp 6, and finally sets the front and rear angle, the speed of swinging, the running time, and the rest time of the swing arm 4, and starts the equipment to run.

[0133] The above embodiments are the preferred embodiments of the present application, but the embodiments of the present application are not limited by the above embodiments, any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present application shall be equivalent replacement modes, and all shall be included in the protection scope of the present application.

Claims

1. A KOA-PT therapy based exercise rehabilitation treatment instrument for periprosthetic joint disease, comprising a base (1) placed on the ground for a patient to stand on with a non-treatment leg, and a frame (2) fixedly connected to the base (1) at one end and capable of ascending and descending at the other end, which is arranged on the upper surface of the base (1) close to the end of the treatment leg of the patient, characterized in that: The lifting end of the frame (2) is connected with a swing arm (4) capable of up-down telescoping and suspended arrangement, the lower part of the swing arm (4) is provided with a foot part for resting the patient's treatment leg, and the foot part is capable of up-down sliding along the swing arm (4) axis, left-right sliding along the swing arm (4) radial direction, and rotating around the lower part of the swing arm (4), the L-shaped upper part of the foot part is fixedly connected with a C-shaped clamping (6) for clamping the lower leg of the patient's treatment leg; so that the patient can stand on the base (1) with the non-treatment leg and swing the treatment leg, or the patient can lie on the bed above the base (1) or the chair in front of the chair, and swing the treatment leg; in the standing training state, the lifting mechanism of the frame (2) is controlled, and then the height of the swing arm (4) is adjusted, so that the rotation center of the swing arm (4) and the position of the patient's hip joint are at the same horizontal height; in the lying training state, the device is placed beside the bed, the patient lies on the bed with the legs naturally stretched out; the lifting mechanism of the frame (2) is controlled, and then the height of the swing arm (4) is adjusted, so that the patient steps the treatment leg on the foot plate (5). ​ 2. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee disease according to claim 1, characterized in that: The L-shaped upper part of the foot plate (5) and the lower part of the swing arm (4) are sequentially provided with a gasket (7), an L-shaped bracket (8) which is mirror image arranged with the L-shaped foot plate (5) and is clamped with the lower end of the swing arm (4), the L-shaped vertical cavity of the L-shaped bracket (8) is a cavity structure, and the horizontal direction of the L-shaped bracket (8) is a solid bottom plate structure; a sliding plate (9) is clamped in the L-shaped vertical cavity of the L-shaped bracket (8), and the sliding plate (9) and the L-shaped bracket (8) are slidingly locked connected.

3. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee disease according to claim 2, characterized in that: The first rotating shaft (10) penetrates between the foot plate (5), the gasket (7), the bracket (8) and the sliding plate (9), and is locked by the first locking nut (10-1) located outside the sliding plate (9).

4. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee disease according to claim 3, characterized in that: The lower end of the swing arm (4) is a port structure, which is slidingly matched with the L-shaped horizontal bottom plate of the bracket (8), the outer three sides and the inner side of the L-shaped horizontal bottom plate of the bracket (8) are provided with a surrounding frame (11), and the surrounding frame (11) is clamped between the swing arm (4) and the outer circumference.

5. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 1, characterized in that: The swing arm (4) sequentially includes a first telescopic pipe (4-3), a second telescopic pipe (4-2) and a swing arm support (4-1) connected head to tail from the bottom end to the top end.

6. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee diseases according to claim 1, characterized in that: The frame (2) includes a frame assembly (2-1), and the frame assembly (2-1) is provided with a frame shell (2-2) which is open on the left and right sides.

7. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 6, characterized in that: The rack assembly (2-1) comprises a rack support (2-1-1) fixed on the upper surface of the base (1) in a cavity structure, a first fixing frame (2-1-5) embedded in the base (1) is arranged inside the cavity of the rack support (2-1-1), a second electric push rod (2-1-6) vertically arranged is fixedly connected in the first fixing frame (2-1-5), a second fixing frame (2-1-7) is fixedly connected at the telescopic end of the second electric push rod (2-1-6), and a shelter (2-1-8) is fixedly connected to the upper surface of the second fixing frame (2-1-7).

8. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 7, characterized in that: The lower end surface of the shelter (2-1-8) is fixedly connected with a reducer (2-1-13) arranged vertically along the rotation axis, a rotating motor (2-1-14) coaxially arranged with the reducer (2-1-13) is drivingly connected to the bottom end of the reducer (2-1-13), a main shaft (2-1-18) is drivingly connected to the output end of the reducer (2-1-13), and a swing arm (4) is fixedly connected to the main shaft (2-1-18) close to the patient's treatment leg end.

9. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 8, characterized in that: An angle sensor (2-1-21) for monitoring the rotation angle and rotation speed of the main shaft (2-1-18) in real time is arranged on the rack support (2-1-1).

10. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 1, characterized in that: The base (1) comprises a base support (1-1) arranged in a day type along the left-right direction, a horizontally arranged base (1-2) is fixedly connected to the upper end of the base support (1-1), and a support table (1-3) for the patient to stand on is arranged on the upper surface of the base (1-2) corresponding to the non-treatment leg of the patient.

11. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 10, characterized in that: A vibrator (1-4) for prompting the user of an abnormal condition is arranged at the position of the base (1-2) corresponding to the support table (1-3).

12. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee ailments as claimed in claim 1 wherein: The C-shaped clamp (6) comprises a C-shaped gasket (6-1), and a C-shaped soft pad (6-2) is wrapped around the outer periphery of the C-shaped gasket (6-1).

13. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee ailments as claimed in claim 1 wherein: A support frame (3) for sleeving the patient and capable of adjusting the peripheral size according to the body type of the patient is fixedly connected to the telescopic end of the rack (2) close to the patient's treatment leg side.

14. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 13, characterized in that: The support frame (3) comprises a right telescopic pipe (3-4) fixedly supported on the telescopic end of the rack (2) and arranged horizontally in front and back, a front telescopic pipe (3-1) is connected to the front end of the right telescopic pipe (3-4) and arranged horizontally in suspension, a rear telescopic pipe (3-2) is connected to the rear end of the right telescopic pipe (3-4) and arranged horizontally in suspension, and a left telescopic pipe (3-3) is arranged on the left side of the right telescopic pipe (3-4) and connected between the left end of the front telescopic pipe (3-1) and the left end of the rear telescopic pipe (3-2) and arranged horizontally in suspension.

15. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 14, characterized in that: A turnover shaft (3-5) is arranged on the right side of the right telescopic pipe (3-4) and connected between the left end of the front telescopic pipe (3-1) and the left end of the rear telescopic pipe (3-2) and penetrating through the telescopic end of the rack (2).

16. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee ailments as claimed in claim 15 wherein: The turnover shaft (3-5) comprises an outer turnover shaft (3-5-1) arranged horizontally in front and back and in a tubular shape, and inner turnover shafts (3-5-2) coaxially arranged with the outer turnover shaft (3-5-1) are respectively and slidably sleeved on both ends of the inner turnover shaft (3-5-1).

17. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 16, characterized in that: The inner rotating shaft (3-5-2) at both ends of the rotating shaft (3-5) is connected with the front telescopic pipe (3-1) and the rear telescopic pipe (3-2) through a third locking screw (3-5-3) respectively.

18. The KOA-PT therapy based exercise rehabilitation therapy apparatus for periknee ailments as claimed in claim 17 wherein: The front sleeve pipe (3-1-1), the rear sleeve pipe (3-2-1), the left sleeve pipe (3-3-1) and the right sleeve pipe (3-4-1) are all provided with handrails (3-6) capable of adjusting height up and down.

19. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 18, characterized in that: The handrails (3-6) comprise inverted L-shaped handrail supports (3-6-1) inserted on the outer side of the front sleeve pipe (3-1-1), or the outer side of the rear sleeve pipe (3-2-1), or the outer side of the left sleeve pipe (3-3-1), or the inner side of the right sleeve pipe (3-4-1).

20. The KOA-PT therapy based exercise rehabilitation therapy instrument for periknee disease according to claim 19, characterized in that: The horizontal lower surface of the inverted L-shaped structure of the handrail support (3-6-1) is fixedly provided with a first display support (3-7) capable of extending to the outer side of the soft pad (3-6-7) and used for supporting the display.

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