Joint post-operation range-of-motion training device

Abstract

The invention provides a joint post-operation motion range training device, and particularly relates to the technical field of medical auxiliary instruments.The joint post-operation motion range training device comprises a bottom plate, an upper arm supporting plate is fixedly connected to the bottom plate, two side plates are symmetrically and fixedly connected to the side, close to the upper arm supporting plate, of the bottom plate, and a perforated fixed plate is fixedly connected to the side, away from an abutting plate, of an arc plate; the two movable plates and the perforated fixed plate are all located on the rotating path of the abutting plate, a progressive training mode is more suitable for postoperative patient training, and compared with the situation that in the prior art, a patient is injured or excessive pain is caused due to the fact that direct training possibly causes the too large movement range, the patient can be trained more accurately by increasing the movement angle of elbow joint training progressively, and the training efficiency is improved. By means of the arm training device, a patient can gradually adapt to the movement of the arm, five times of training in each range can enable muscles and joints to have enough time to adapt to and recover, the injury risk caused by one-time overtraining is avoided, and the training effectiveness and safety are improved.

Description

Technical Field

[0001] The invention provides a joint post-operative range of motion training device, and particularly relates to the technical field of medical auxiliary equipment. Background Art

[0002] There are multiple joints in the human body. The elbow joint of the arm needs joint surgery after injury. Patients after joint surgery need arm joint activity training. Patients actively flex and extend their arms to train the elbow joint, which is beneficial to the recovery of the joint and arm function after surgery.

[0003] A portable elbow flexion and extension traction and training device is disclosed in the utility model with the patent authorization announcement as the authorization announcement number CN219557960U. The device is combined with a forearm fixing plate, an upper arm fixing plate and a fixing seat to respectively bind and fix the patient's forearm and upper arm, and use a latex tension rope to perform elbow flexion and extension traction and training. There are two treatment methods for patients, traction mode and training mode. When improving the patient's elbow extension range of motion, the traction force of the forearm side tension rope is used to make the patient feel that the elbow joint is in a tense state or tolerable pain. When improving the patient's elbow flexion range of motion, the traction force of the upper arm side tension rope is used to make the patient feel that the elbow joint is in a tense state or tolerable pain. Finally, the fixing seat is lifted up by a forearm sling to reduce the upper arm load. The patient can adjust the intensity and time of traction according to the treatment requirements, and can perform small-dose long-term traction or large-dose short-term traction.

[0004] Although the above training device has the function of training the patient's arm and elbow joint, it does not take into account that some patients after surgery cannot use the traction training method of pulling ropes. Using this training method can easily cause secondary injuries to the patient's elbow joint during the training process. In addition, the training device does not have a step-by-step method for training the elbow joint, which can easily cause injuries to the patient during the postoperative elbow joint training. It also does not have the function of limiting the number of training times. If the number of single training times is too large, it will lead to overtraining, resulting in poor results of joint activity training.

[0005] Therefore, the present invention proposes a post-operative range of motion training device for joints to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0006] In view of the defects existing in the prior art, the present invention provides a joint postoperative range of motion training device, which can effectively solve the related technical problems raised by the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention discloses a post-operative range of motion training device for joints, comprising a bottom plate, an upper arm support plate fixedly connected to the bottom plate, two side plates symmetrically fixedly connected to one side of the bottom plate close to the upper arm support plate, two side plates rotatably connected to one side of the two side plates away from the bottom plate, a rotating disk fixedly connected to one end of the rotating disk away from the side plate, a lower arm support plate fixedly connected to one side of the rotating disk away from the upper arm support plate, and straps fixedly connected to both the lower arm support plate and the upper arm support plate;

[0009] The cam is provided with two guide rails which are respectively provided with two guide rails and two guide rails for sliding connection to each other, and the guide rails are provided with two guide rails for sliding connection to each other. The cam is connected with the gear train of the described gear chain, and the gear train of the described gear train is connected with the gear train of the described gear train on the one hand, and the gear train of the described gear train is connected with the gear train of the described gear chain.

[0010] Preferably, a transition support is fixedly connected between the lower arm support plate and the upper arm support plate, and the transition support is made of soft cotton cloth.

[0011] Preferably, the magnetic plate is arc-shaped, and after the magnetic plate moves to the final position, it is always between the two moving plates.

[0012] Preferably, a plate support is fixedly connected to the side plate at a position corresponding to the bottom of the magnetic plate, and a side of the magnetic plate close to the plate support is in abutment with the plate support.

[0013] Preferably, the progressive training mechanism also includes a prompt component, which includes a top plate fixedly connected to the side of the side plate away from the bottom plate, two prompt lights fixedly connected to the side of the top plate away from the side plate, the positions of the two prompt lights correspond one to one with the positions of the two movable plates, and the two movable plates are fixedly connected to the sides close to the prompt lights with a push rod, and two push-type switches are fixedly installed at the positions corresponding to the prompt lights and the two push rods.

[0014] Preferably, a locking mechanism is provided on the side of the rotating shaft close to the hole fixed plate, and the locking mechanism includes a hook-shaped plate fixedly connected to the side of the hole fixed plate close to the side plate, and the side of the hook-shaped plate close to the hole fixed plate is respectively fixedly connected with piston cylinder one and piston cylinder two, the piston cylinder one is located above the piston cylinder two, and a valve pipe is connected between the sides of the piston cylinder one and the piston cylinder two close to each other, and a one-way valve is installed on the portion where the valve pipe is connected to the piston cylinder one and the piston cylinder two, a reel rod is movably inserted into the interior of the piston cylinder one, and the reel rod and the piston cylinder one constitute a piston cylinder structure, and one end of the reel rod close to the hole fixed plate extends to the piston cylinder one The outside of the belt reel is movably connected with the open hole fixed plate, the belt reel rod is located on the rotation path of the abutment plate, the belt reel rod is fixedly connected with an internal spring 2 between one end of the belt reel rod located inside the piston cylinder and the inner wall of the piston cylinder, the piston cylinder 2 is movably connected with a belt reel bent rod, the part of the belt reel bent rod located inside the piston cylinder 2 constitutes a piston cylinder structure with the piston cylinder 2, the belt reel bent rod extends to the outside of the piston cylinder 2 away from the end of the valve tube, the end of the belt reel bent rod close to the rotating shaft is fixedly connected with a tooth ring, the outer ring surface of the rotating shaft is provided with a ring-shaped groove at a position corresponding to the belt reel bent rod, and the end of the belt reel bent rod away from the piston cylinder 2 is fixedly connected with a pull plate.

[0015] Preferably, the valved tube is made of soft silicone, and the portion where the valved tube communicates with the piston cylinder is threaded.

[0016] Preferably, a strip rod is provided on the portion of the belt reel bent rod located inside the second piston cylinder, and the strip rod is used to limit the belt reel bent rod to only be able to move back and forth horizontally in the second piston cylinder.

[0017] Preferably, the side of the tooth ring close to the slot is a serrated ring surface, and the slot is adapted to be engaged with the serrated surface.

[0018] Preferably, a buffer assembly is provided on the side of the lower arm support plate close to the base plate, and the buffer assembly includes a support block fixedly connected to the side of the lower arm support plate close to the base plate, a perforated block is fixedly connected to a position on the base plate corresponding to the support block, a buffer spring is fixedly connected to a circular hole opened in the center of the perforated block, and a semi-ring plate is fixedly connected to one end of the buffer spring close to the support block.

[0019] Beneficial effects of the present invention:

[0020] The joint postoperative range of motion training device, through the set progressive training mechanism, allows the patient's lower arm to be trained a total of 15 times when performing activity training, which just meets the number of single arm training requirements of the patient. The progressive training is performed within three ranges of motion. The progressive training method is more suitable for postoperative patient training. Compared with the direct training in the prior art, which may cause injuries or excessive pain to the patient due to the excessive range of motion, the elbow joint training activity angle is progressively increased, so that the patient can gradually adapt to the movement of the arm. The five trainings in each range can give the muscles and joints enough time to adapt and recover, avoiding the risk of injury caused by one-time excessive training, and improving the safety of the effectiveness of training.

[0021] During the training of the patient's lower arm, the patient can adjust and increase the training angle of his lower arm in time by observing the corresponding prompt light on. The prompt light provides visual guidance for the patient's training and ensures the accuracy of the patient's joint range of motion training.

[0022] At the same time, the upper arm support, lower arm support, and transition support are used to position the patient's arm, so that patients who have undergone joint surgery can perform active flexion and extension training. The training device is simple and convenient to use, making it easy for patients to train. During the training process, the patient's arm only needs to overcome the gravity of the lower arm support and the friction of the rotating shaft, so as to avoid the patient's arm being damaged during training due to overcoming excessive external force, making it more suitable for training the range of motion of patients who have undergone joint surgery.

[0023] When the patient has performed joint activity training for fifteen times, the rotation axis can be timely restricted by the cooperation of the gear ring and the belt plate curved rod and other components, so that the rotation axis, the lower arm support plate and the patient's lower arm cannot continue to rotate for training, thereby limiting the number of single joint training for the patient, avoiding the patient from being injured due to too many single training times, and further ensuring the safety of the patient's joint training;

[0024] When the patient's lower arm rotates downward to a horizontal state, the elastic force of the buffer spring is used for buffering, so as to prevent the patient's lower arm from rotating downward too quickly and causing damage to the arm joint, thereby improving the safety of the patient when lowering his lower arm during joint activity training. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a main perspective structural diagram of the present invention;

[0026] Figure 2 It is a three-dimensional structural diagram of another viewing angle of the present invention;

[0027] Figure 3 It is a partial three-dimensional structural diagram of the rotating shaft and the related parts of the transition support of the present invention;

[0028] Figure 4 It is a partial three-dimensional structural diagram of the ratchet and gear-related parts of the present invention;

[0029] Figure 5 It is a partial three-dimensional structural diagram of the grooved vertical plate and the wedge block and related parts of the present invention;

[0030] Figure 6 It is a partial three-dimensional structural diagram of the relevant parts of the vertical spring of the present invention;

[0031] Figure 7 It is a partial three-dimensional structural diagram of the relevant components at the top plate of the present invention;

[0032] Figure 8 It is a partial three-dimensional structural diagram of the relevant parts of the hook-type plate of the present invention;

[0033] Fig. 9 It is a partial three-dimensional structural diagram of the relevant parts of the piston cylinder 1 and the piston cylinder 2 of the present invention;

[0034] Fig.10 It is a partial three-dimensional structural diagram of the relevant parts of the support block of the present invention.

[0035] The numbers in the figure represent:

[0036] 1. Bottom plate; 11. Upper arm support plate; 12. Side plate; 13. Rotating shaft; 14. Turntable; 15. Lower arm support plate; 16. Transition support; 17. Binding strap;

[0037] Progressive training mechanism: 21, abutment plate; 22, arc plate; 221, slide groove; 222, moving plate; 223, horizontal spring; 224, fixed plate with holes; 23, strip plate; 24, vertical plate with grooves; 25, mounting plate; 251, vertical spring; 26, connecting plate; 27, ratchet; 271, torsion spring; 28, wedge; 281, built-in spring 1; 29, gear; 210, inner gear ring; 211, magnetic plate; 212, plate support;

[0038] Prompt components: 31, top plate; 32, prompt light; 33, push switch; 34, stop rod;

[0039] Locking mechanism: 41, hook plate; 42, piston cylinder 1; 421, rod with disc; 422, built-in spring 2; 43, piston cylinder 2; 431, bent rod with disc; 432, tooth ring; 433, slot; 434, pull plate; 44, valve tube;

[0040] Buffer assembly: 51, support block; 52, block with holes; 53, buffer spring; 54, semi-ring plate. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the embodiments.

[0042] Embodiment 1: Figures 1 to 6 As shown, a post-operative range of motion training device for joints comprises a base plate 1, an upper arm support plate 11 is fixedly connected to the base plate 1, two side plates 12 are symmetrically fixedly connected to one side of the base plate 1 close to the upper arm support plate 11, the two side plates 12 are rotatably connected to the side away from the base plate 1 with a rotating shaft 13, a rotating disk 14 is fixedly connected to one end of the rotating shaft 13 away from the side plate 12, a lower arm support plate 15 is fixedly connected to the side of the rotating disk 14 away from the upper arm support plate 11, a transition support 16 is fixedly connected between the lower arm support plate 15 and the upper arm support plate 11, and the two side plates 12 are respectively located on both sides of the transition support 16. The transition support 16 is made of soft cotton cloth, and is used to support the patient's elbow joint to ensure the comfort of the patient's elbow. The transition support 16 is initially in a straight state. The lower arm support plate 15 and the upper arm support plate 11 are both fixedly connected with straps 17. Specifically, at least two straps 17 are provided on the lower arm support plate 15, and at least one strap 17 is provided on the upper arm support plate 11. The free ends of the straps 17 can be adhered to the corresponding positions of the outer walls of the upper arm support plate 11 and the lower arm support plate 15 by Velcro.

[0043] During use: the medical staff manually assists the patient to lift his arm, and then the medical staff horizontally places the bottom plate 1 on the patient's bed, and slowly puts the patient's arm down, so that the lower arm of the patient's arm is placed on the lower arm support plate 15, the upper arm is placed on the upper arm support plate 11, and the elbow joint is placed on the transition support 16. Then, the bandage 17 is used to go around the upper part of the patient's arm, and the free end of the bandage 17 is pasted on the lower arm support plate 15 and the upper arm support plate 11, so that the patient's arm is fixed to the upper arm support plate 11 and the lower arm support plate 15. Then, the patient drives the lower arm support plate 15, the rotating shaft 13, and the rotating disk 14 to rotate upward and then rotate downward by moving the lower arm, and the active flexion and extension activity training of the arm can be started, that is, the patient's lower arm and the lower arm support plate 15 rotate up and down with the rotating shaft 13 as the fulcrum, and when the lower arm support plate 15 rotates upward, the transition support 16 will first be wrinkled, and then return to a straight state when it rotates downward. By positioning the patient's arm using the upper arm support plate 11, the lower arm support plate 15, and the transition support 16, the patient can be provided with active flexion and extension training after joint surgery. The training device is simple and convenient to use, and is convenient for the patient to perform training. During the training process, the patient's arm only needs to overcome the gravity of the lower arm support plate 15 and the friction of the rotation of the shaft 13, so as to avoid the patient's arm being damaged during training due to overcoming excessive external force, and thus is more suitable for the training of patients after joint surgery.

[0044] like Figures 1 to 6As shown, the two side plates 12 are symmetrically provided with a progressive training mechanism on one side close to the rotating disk 14, and the progressive training mechanism includes a butt plate 21 fixedly connected to the side of the rotating disk 14 close to the side plate 12, and the butt plate 21 is initially parallel to the bottom plate 1. The side plate 12 close to the rotating disk 14 is fixedly connected with an arc plate 22, and the arc plate 22 is located above the butt plate 21. The arc plate 22 is provided with two slide grooves 221, and the two slide grooves 221 are respectively slidably connected with a movable plate 222. A horizontal spring 223 is fixedly connected between the sliding connection portion of the movable plate 222 and the slide groove 221 and the groove surface of the slide groove 221, that is, one end of the horizontal spring 223 is fixedly connected to the movable plate 222, and the other end is fixedly connected to the groove surface of the slide groove 221 away from the movable plate 222. A hole-perforated fixed plate 224 is fixedly connected to the side of the arc plate 22 away from the plate 21. The central angle between the two movable plates 222 is fifty degrees, and the central angle between the movable plate 222 near the plate 21 and the plate 21 is also fifty degrees. The central angle between the other movable plate 222 and the hole-perforated fixed plate 224 is also fifty degrees, that is, the central angle between the plate 21 and the hole-perforated fixed plate 224 is one hundred and fifty degrees, which just meets the activity angle of human arm flexion and extension: one hundred and fifty degrees. Note: The central angles are all based on the center of the turntable 14 as a reference. The two movable plates 222 and the hole-perforated fixed plate 224 are both located on the rotation path of the plate 21, and the arc plate 22 will not hinder the rotation of the plate 21. A strip plate 23 is fixedly connected to the rotating shaft 13, and the strip plate 23 is initially located on the side close to the abutment plate 21. A grooved vertical plate 24 is fixedly connected to the side of the side plate 12 close to the rotating disk 14. A mounting plate 25 is slidably connected to the side of the grooved vertical plate 24 close to the rotating disk 14, and the mounting plate 25 is initially located above the grooved vertical plate 24. A vertical spring 251 is fixedly connected between the mounting plate 25 and the grooved vertical plate 24. A plurality of connecting plates 26 are evenly fixedly connected to the side of the mounting plate 25 close to the abutment plate 21. A ratchet 27 is rotatably connected to the plurality of connecting plates 26. A torsion spring 271 is connected to the portion where the ratchet 27 is rotatably connected to the connecting plate 26. One end of the torsion spring 271 is fixedly connected to the ratchet 27, and the other end is fixedly connected to the connecting plate 26. A wedge block 28 is movably inserted on the side of the mounting plate 25 away from the abutment plate 21. The side of the wedge block 28 close to the strip plate 23 is an inclined surface, and the side of the wedge block 28 away from the strip plate 23 is a horizontal surface. The wedge block 28 is located on the rotation path of the strip plate 23, and the initial position of the wedge block 28 is above the strip plate 23.An internal spring 281 is fixedly connected between the wedge block 28 and the insertion position of the mounting plate 25. A gear 29 is rotatably connected to the side of the side plate 12 close to the mounting plate 25. An inner gear ring 210 is also rotatably connected to the side of the side plate 12 close to the mounting plate 25. The teeth on the inner ring surface of the inner gear ring 210 mesh with the teeth on the outer ring surface of the gear 29. The teeth on the outer ring surface of the gear 29 are located on the path of the vertical movement of the ratchet 27. A magnetic plate 211 is fixedly connected to the outer ring surface of the inner gear ring 210 close to the plate 21. The magnetic plate 211 is made of magnetic material, and the two movable plates 222 are both located on the rotation path of the magnetic plate 211. The two movable plates 222 are both made of magnetic material, and their magnetism is opposite to that of the magnetic plate 211. The magnetic plate 211 is arc-shaped. Initially, the magnetic plate 211 will not be adsorbed by the two movable plates 222, and after the magnetic plate 211 moves to the final position, it is always between the two movable plates 222, that is, when the magnetic plate 211 moves to the final position and no longer moves, the magnetic plate 211 can still adsorb the two movable plates 222.

[0045] like Figure 4 , Figure 5 As shown, a plate support 212 is fixedly connected to the side plate 12 at a position corresponding to the bottom of the magnetic plate 211, and the side of the magnetic plate 211 close to the plate support 212 is in abutment with the plate support 212. The plate support 212 is used to locate and limit the initial position of the magnetic plate 211 to ensure that the magnetic plate 211 does not rotate downward when in the initial position.

[0046] It is further defined that during the patient's five times of joint flexion and extension training, when the patient's lower arm rotates downward five times, the lower arm support plate 15 will drive the rotating shaft 13 and the strip plate 23 to rotate counterclockwise five times, and each counterclockwise rotation of the strip plate 23 will push the wedge block 28 to move downward, and then the mounting plate 25 will be driven to move synchronously through the wedge block 28, thereby driving the gear 29 to rotate clockwise through the ratchet 27, and after a total of five rotations, the clockwise rotation of the gear 29 will drive the inner gear ring 210 to rotate synchronously, and finally the end of the magnetic plate 211 close to the abutment plate 21 will be driven by the inner gear ring 210 to rotate to correspond to the moving plate 222 close to the side of the abutment plate 21. Note: The clockwise rotation direction of the gear 29 is based on Figure 4 , Figure 5 As a reference.

[0047] During use: when the patient's lower arm drives the lower arm support plate 15 to rotate upward once, it will also drive the rotating shaft 13 and the turntable 14 to rotate clockwise, thereby driving the butt plate 21 to move synchronously. During the clockwise rotation of the butt plate 21, it will contact the movable plate 222 close to the side of the butt plate 21. As a result, under the blocking effect of the movable plate 222, the turntable 14, the lower arm support plate 15, and the butt plate 21 can no longer continue to rotate clockwise. During this process, the patient's lower arm drives the lower arm support plate 15 to rotate clockwise in the range of an angle of zero to fifty degrees. As the rotating shaft 13 rotates clockwise, the strip plate 23 is also driven to move synchronously, so that the strip plate 23 contacts the inclined surface of the wedge block 28, thereby causing the wedge block 28 to move horizontally toward the side close to the mounting plate 25. During this process, the built-in spring 281 is in a compressed state. When the rotating shaft 13 rotates clockwise to drive the strip plate 23 and the wedge block 28 to separate, the wedge block 28 is reversely horizontally displaced and reset under the action of the rebound force of the built-in spring 281. When the patient's lower arm rotates downward, the rotating shaft 13 and the strip plate 23 are driven to move counterclockwise, so that the strip plate 23 contacts the horizontal surface of the wedge block 28, and drives the wedge block 28 and the mounting plate 25 to move vertically downward along the trajectory of the grooved vertical plate 24. During the process, the vertical spring 251 is gradually compressed. After the strip plate 23 rotates counterclockwise to the initial position, the patient's lower arm drives the lower arm support plate 15 to rotate downward to the initial position. At this time, the strip plate 23 no longer contacts the horizontal surface of the wedge block 28, so that the mounting plate 25 is driven to move up and reset along the trajectory of the grooved vertical plate 24 under the action of the rebound force of the vertical spring 251.

[0048] When the mounting plate 25 moves vertically downward, it will also drive the connecting plate 26, the ratchet 27, and the torsion spring 271 to move synchronously, so that the ratchet 27 will mesh with the gear 29 when it moves downward. Under the blocking effect of the connecting plate 26, the ratchet 27 is restricted from rotating upward, thereby driving the gear 29 to rotate clockwise, and then the inner gear ring 210 and the magnetic plate 211 are driven to rotate synchronously through the clockwise rotation of the gear 29. In the process of the ratchet 27 moving up and resetting, the ratchet 27 and the teeth of the gear 29 are in frictional contact, prompting the ratchet 27 to rotate downward. During the process, the torsion spring 271 is in a state of stress deformation. When the ratchet 27 is no longer in contact with the teeth of the gear 29, the ratchet 27 is automatically reset under the action of the rebound force of the torsion spring 271, so that the gear 29 will not be driven to rotate during the process of the ratchet 27 moving up. In this way, when the patient's lower arm rotates downward five times within the above-mentioned range of activity from 0 to 50 degrees, after the activity training is completed, the gear 29 will eventually drive the inner gear ring 210 to rotate clockwise five times, thereby driving the magnetic plate 211 to rotate clockwise five times. After five rotations, the magnetic plate 211 just corresponds to the movable plate 222 close to the side of the plate 21. Therefore, under the magnetic attraction of the opposite magnetic properties of the movable plate 222 and the magnetic plate 211, the movable plate 222 is urged to move horizontally along the track of the slide 221 toward the direction close to the magnetic plate 211, and the horizontal spring 223 is gradually compressed during the process. As the movable plate 222 moves horizontally, it will no longer block the plate 21 from rotating clockwise, and thus will not block the rotating shaft 13, the rotating disk 14, and the lower arm support plate 15 from rotating clockwise, so that the patient's arm can rotate upward. The other movable plate 222 will block the support plate 21, the rotating shaft 13, the rotating disk 14, and the lower arm support plate 15 from continuing to rotate clockwise, thereby preventing the patient's lower arm from rotating upward. At this time, the patient's lower arm can perform five joint range of motion training within the range of 0 to 100 degrees. Combined with the five trainings mentioned above, a total of ten trainings can be performed within the range of motion between the two movable plates 222. After the patient has trained five times within this range, the magnetic plate 211 will correspond to the other movable plate 222 in the same manner as the above principle, so that the movable plate 222 will not block the patient's arm from rotating upward. At this time, the perforated fixed plate 224 will block the support plate 21 from continuing to move, thereby also limiting the patient's lower arm from rotating upward. At this time, the range of motion of the patient's lower arm reaches the maximum, that is, the patient's lower arm can perform five joint range of motion training within the range of 0 to 150 degrees. Note: When the above-mentioned support plate 21 rotates clockwise, it will successively contact the two movable plates 222 and the perforated fixed plate 224.

[0049] Therefore, by setting up a progressive training mechanism, the patient's lower arm can be trained for a total of fifteen times during activity training, which just meets the number of single arm training requirements of the patient. Progressive training is performed within three ranges of motion. The progressive training method is more suitable for postoperative patient training. Compared with the direct training in the prior art, which may cause injury or excessive pain to the patient due to excessive range of motion, the progressive increase in the elbow joint training activity angle allows the patient to gradually adapt to the movement of the arm, and five training sessions in each range can allow the muscles and joints to have enough time to adapt and recover, avoiding the risk of injury caused by one-time excessive training and improving the safety of the effectiveness of training.

[0050] Embodiment 2: Figure 1 , Figure 7 As shown, the progressive training mechanism also includes a prompt component, which includes a top plate 31 fixedly connected to the side of the side plate 12 away from the bottom plate 1, and two prompt lights 32 are fixedly connected to the side of the top plate 31 away from the side plate 12, and the positions of the two prompt lights 32 correspond to the positions of the two movable plates 222 one by one. The two movable plates 222 are fixedly connected to the sides close to the prompt lights 32 with push rods 34, and two push-type switches 33 are fixedly installed at the positions corresponding to the prompt lights 32 and the two push-type switches 33. The two push-type switches 33 are used to respectively control the power on and off of the corresponding prompt lights 32, and the two push-type switches 33 and the two prompt lights 32 are powered by an external mobile power supply.

[0051] During use: In order to facilitate patients to intuitively know the training situation and adjust the range of motion of the lower arm in time. When the above-mentioned two movable plates 222 are horizontally displaced in the direction close to the magnetic plate 211, they will also synchronously drive the push rod 34 to move horizontally, and finally make the push rod 34 squeeze and contact the push switch 33, so that the corresponding prompt lights 32 are controlled to light up through the two push switches 33. In this way, during the training of the patient's lower arm, by observing the corresponding prompt light 32 lighting up, the patient can timely adjust and increase the training activity angle of his own lower arm, and the prompt light 32 lighting up provides visual guidance for the patient's training, thereby ensuring the accuracy of the patient's joint range of motion training.

[0052] Embodiment 3: Figure 1 , Figures 8 to 9As shown, a joint postoperative range of motion training device also includes a locking mechanism arranged on the side of the rotating shaft 13 close to the hole fixed plate 224, the locking mechanism includes a hook plate 41 fixedly connected to the hole fixed plate 224 close to the side plate 12, the hook plate 41 is fixedly connected to the side of the hole fixed plate 224 close to the hole fixed plate 224 with a piston cylinder 1 42 and a piston cylinder 2 43, the piston cylinder 1 42 is located above the piston cylinder 2 43, and a valve pipe 44 is connected between the sides of the piston cylinder 1 42 and the piston cylinder 2 43 close to each other, and the valve pipe 44 is made of soft silicone, and the valve pipe 44 and The portion where the piston cylinder 43 is connected is a threaded connection, and the portions where the valve tube 44 is connected to the piston cylinder 42 and the piston cylinder 43 are installed with one-way valves. The interior of the piston cylinder 42 is movably connected with a reel rod 421, and the reel rod 421 and the piston cylinder 42 constitute a piston cylinder structure. One end of the reel rod 421 close to the hole fixed plate 224 extends to the outside of the piston cylinder 42, and is movably connected with the hole fixed plate 224. Specifically, a through hole is provided at the position corresponding to the hole fixed plate 224 and the reel rod 421, for the reel rod 421 to pass freely. The belt reel rod 421 is located on the rotation path of the abutment plate 21, and an internal spring 422 is fixedly connected between one end of the belt reel rod 421 located inside the piston cylinder 42 and the inner wall of the piston cylinder 42, and a belt reel bent rod 431 is movably inserted inside the piston cylinder 43, and the portion of the belt reel bent rod 431 located inside the piston cylinder 43 forms a piston cylinder structure with the piston cylinder 43, and a strip rod is provided on the portion of the belt reel bent rod 431 located inside the piston cylinder 43, which limits the belt reel bent rod 431 to only be able to move horizontally back and forth in the piston cylinder 43. The bent rod 431 with a reel extends to the outside of the piston cylinder 43 at one end away from the valve tube 44, and the bent rod 431 with a reel is fixedly connected to the end of the rotating shaft 13 with a tooth ring 432. The outer ring surface of the rotating shaft 13 is provided with a ring-shaped groove 433 at a position corresponding to the bent rod 431. The tooth ring 432 has a serrated ring surface close to the groove 433. The groove 433 is adapted to be engaged with the serrated shape to ensure the stability of the tooth ring 432 after being engaged with the groove 433, thereby effectively limiting the continued rotation of the rotating shaft 13.

[0053] Furthermore, if Figure 8 As shown, one end of the belt-reel curved rod 431 away from the piston cylinder 2 43 is fixedly connected with a pull plate 434 .

[0054] It is further defined that after the above-mentioned reel rod 421 is squeezed by the anti-plate 21 and moves five times in the direction close to the valve tube 44, the air inside the piston cylinder 1 42 will be gradually sent into the piston cylinder 2 43 through the valve tube 44 during the five movements, thereby pushing the reel curved rod 431 and the latching tooth ring 432 to gradually approach the slot 433 horizontally. After the reel rod 421 stops moving five times, the latching tooth ring 432 can be fitted on the slot 433.

[0055] During use: In order to limit the number of single joint activity trainings of the patient, when the patient's lower arm is in the range of 0 to 150 degrees, as the plate 21 contacts the hole plate 224, the end of the reel rod 421 away from the piston cylinder 1 42 will be contacted, and the end of the reel rod 421 located inside the piston cylinder 1 42 will be moved downward toward the direction close to the valve tube 44, so that the air inside the piston cylinder 1 42 is sent into the piston cylinder 2 43 through the valve tube 44, and the one-way valve at the connection between the valve tube 44 and the piston cylinder 2 43 will limit the reverse flow of air. At the same time, the reel rod 421 moves downward, and the built-in spring 2 422 is in a compressed state. When the patient's lower arm rotates downward to drive the plate 21 away from the belt reel rod 421 and not in contact with the belt reel rod 421, the belt reel rod 421 will be driven to reset in the opposite direction under the action of the rebound force of the built-in spring 2 422, and the one-way valve at the connecting part of the valve tube 44 and the piston cylinder 1 42 will open, so that the external air will be sucked into the piston cylinder 1 42. When the patient's lower arm moves upward once, air is sent into the piston cylinder 2 43, which will push the belt reel curved rod 431 and the locking tooth ring 432 to move horizontally away from the valve tube 44. In this way, after the patient's lower arm is trained five times within the range of 0 to 150 degrees, air will be sent into the piston cylinder 2 43 five times through the piston cylinder 1 42, thereby pushing the belt reel curved rod 431 and the locking tooth ring 432 to move five times, and finally the locking tooth ring 432 will be engaged with the locking groove 433, thereby limiting the rotation of the rotating shaft 13. Therefore, combined with the ten training times of the patient's lower arm activity training in the above embodiment 1, a total of fifteen training times are performed, thereby meeting the requirements of the number of single training times for patients after joint surgery in the prior art. Note: The prior art requires that the number of joint activity training times for patients range from fifteen to twenty times, while this embodiment only illustrates fifteen times.

[0056] Therefore, when the patient has performed joint movement training for fifteen times, the cooperation of the toothed ring 432 and the bent rod with a disk 431 and other components can timely limit the rotating shaft 13, so that the rotating shaft 13, the lower arm support plate 15 and the patient's lower arm cannot continue to rotate for training, thereby limiting the number of single joint trainings for the patient, avoiding injuries caused by too many single trainings for the patient, and further ensuring the safety of the patient's joint training.

[0057] When the patient has finished resting after a single joint training, the medical staff or the patient can manually rotate the connection between the valve tube 44 and the piston cylinder 43 to separate the valve tube 44 from the piston cylinder 43, thereby exhausting the air inside the piston cylinder 43, and then hold the pull plate 434 to horizontally pull the belt disk curved rod 431 and the latching tooth ring 432 in the direction close to the piston cylinder 43 to reset them horizontally, so that the latching tooth ring 432 is no longer engaged with the latching groove 433, and then the valve tube 44 is connected to the piston cylinder 43, and then the patient can start the second joint movement training.

[0058] Embodiment 4: Figure 1 , Fig.10 As shown, a post-operative range of motion training device for joints also includes a buffer assembly arranged on the side of the lower arm support plate 15 close to the base plate 1, the buffer assembly includes a support block 51 fixedly connected to the side of the lower arm support plate 15 close to the base plate 1, a hole block 52 is fixedly connected to the position on the base plate 1 corresponding to the support block 51, and a buffer spring 53 is fixedly connected to the circular hole opened in the center of the hole block 52. Initially, the buffer spring 53 is in a compressed state under the gravity of the lower arm support plate 15 and the support block 51. A semi-ring plate 54 is fixedly connected to one end of the buffer spring 53 close to the support block 51, and the semi-ring plate 54 is in contact with the support block 51.

[0059] During use: the patient's joint activity training forearm drives the lower arm support plate 15 to rotate upward, causing the support block 51 to move away from the semi-ring plate 54, thereby driving the semi-ring plate 54 to move upward under the action of the rebound force of the buffer spring 53. In the process of the lower arm support plate 15 rotating downward, the bottom of the support block 51 will contact the upper surface of the semi-ring plate 54, driving the semi-ring plate 54 to vertically displace in the direction close to the perforated block 52, and the buffer spring 53 is in a compressed state during the process. Therefore, by providing the support block 51, the perforated block 52 and the buffer spring 53, on the one hand, the lower arm support plate 15 can be supported, so that the lower arm support plate 15 is initially in a horizontal state, which is convenient for the patient's forearm to be placed on the lower arm support plate 15, and on the other hand, when the patient's lower arm rotates downward to a horizontal state, the elastic force of the buffer spring 53 is used for buffering, so as to avoid the patient's lower arm rotating downward too fast and causing damage to the arm joint, thereby improving the safety of the patient's lower arm during the joint activity training.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A post-operative range of motion training device for joints, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to an upper arm support plate (11); two side plates (12) are symmetrically fixedly connected to a side of the bottom plate (1) close to the upper arm support plate (11); the two side plates (12) are rotatably connected to a rotating shaft (13) at a side away from the bottom plate (1); a rotating disk (14) is fixedly connected to an end of the rotating shaft (13) away from the side plate (12); a lower arm support plate (15) is fixedly connected to a side of the rotating disk (14) away from the upper arm support plate (11); and a binding strap (17) is fixedly connected to both the lower arm support plate (15) and the upper arm support plate (11); A progressive training mechanism is symmetrically arranged on one side of the two side plates (12) close to the rotating disk (14), and the progressive training mechanism comprises a stop plate (21) fixedly connected to the side of the rotating disk (14) close to the side plate (12); an arc plate (22) is fixedly connected to the side of the side plate (12) close to the rotating disk (14); the arc plate (22) is located above the stop plate (21); two slide grooves (221) are provided on the arc plate (22); movable plates (222) are slidably connected in the two slide grooves (221); a horizontal spring (223) is fixedly connected between the portion where the movable plate (222) is slidably connected to the slide groove (221) and the groove surface of the slide groove (221); a portion of the arc plate (22) away from the stop plate (21) is provided with a spring. A perforated fixed plate (224) is fixedly connected to one side, the two movable plates (222) and the perforated fixed plate (224) are both located on the rotation path of the abutment plate (21), a strip plate (23) is fixedly connected to the rotating shaft (13), the strip plate (23) is initially located on the side close to the abutment plate (21), a grooved vertical plate (24) is fixedly connected to the side of the side plate (12) close to the turntable (14), a mounting plate (25) is slidably connected to the side of the grooved vertical plate (24) close to the turntable (14), a vertical spring (251) is fixedly connected between the mounting plate (25) and the grooved vertical plate (24), a plurality of connecting plates (26) are evenly fixedly connected to the side of the mounting plate (25) close to the abutment plate (21), and a plurality of connecting plates (26) are evenly fixedly connected to the side of the mounting plate (25) close to the turntable (21). The connecting plate (26) is rotatably connected with a ratchet (27), and the portion where the ratchet (27) is rotatably connected to the connecting plate (26) is connected with a torsion spring (271). A wedge block (28) is movably inserted on the side of the mounting plate (25) away from the abutment plate (21), and the side of the wedge block (28) close to the strip plate (23) is an inclined surface, and the side of the wedge block (28) away from the strip plate (23) is a horizontal surface. The wedge block (28) is located on the rotation path of the strip plate (23), and an internal spring (281) is fixedly connected between the portion where the wedge block (28) is inserted into the mounting plate (25). A gear (29) is rotatably connected to the side of the side plate (12) close to the mounting plate (25). An inner gear ring (210) is also rotatably connected to a side close to the mounting plate (25), and teeth on the inner ring surface of the inner gear ring (210) mesh with teeth on the outer ring surface of the gear (29), and the gear (29) is located on a side of the ratchet (27) close to the abutment plate (21), and the teeth on the outer ring surface of the gear (29) are located on a path of vertical movement of the ratchet (27). A magnetic plate (211) is fixedly connected to the outer ring surface of the inner gear ring (210) close to the abutment plate (21), and the magnetic plate (211) is made of a magnetic material. Both of the two moving plates (222) are located on the rotation path of the magnetic plate (211), and both of the two moving plates (222) are made of a magnetic material, and the magnetism is opposite to that of the magnetic plate (211).

2. The post-operative range of motion training device for joints according to claim 1, characterized in that: A transition support (16) is fixedly connected between the lower arm support plate (15) and the upper arm support plate (11), and the transition support (16) is made of soft cotton cloth.

3. The post-operative range of motion training device for joints according to claim 1, characterized in that: The magnetic plate (211) is arc-shaped, and after the magnetic plate (211) moves to a final position, it is always located between the two moving plates (222).

4. The post-operative range of motion training device for joints according to claim 1, characterized in that: A plate support (212) is fixedly connected to the side plate (12) at a position corresponding to the bottom of the magnetic plate (211), and a side of the magnetic plate (211) close to the plate support (212) is in abutment with the plate support (212).

5. The post-operative range of motion training device for joints according to claim 4, characterized in that: The progressive training mechanism also includes a prompting assembly, which includes a top plate (31) fixedly connected to a side of the side plate (12) away from the bottom plate (1); two prompting lights (32) are fixedly connected to the side of the top plate (31) away from the side plate (12); the positions of the two prompting lights (32) correspond to the positions of the two movable plates (222) one by one; a push rod (34) is fixedly connected to the side of the two movable plates (222) close to the prompting lights (32); and two push switches (33) are fixedly installed at positions corresponding to the prompting lights (32) and the two push rods (34).

6. The post-operative range of motion training device for joints according to claim 1, characterized in that: A locking mechanism is provided on the side of the rotating shaft (13) close to the hole-perforated fixed plate (224), and the locking mechanism comprises a hook-shaped plate (41) fixedly connected to the side of the hole-perforated fixed plate (224) close to the side plate (12), and a piston cylinder 1 (42) and a piston cylinder 2 (43) are fixedly connected to the side of the hook-shaped plate (41) close to the hole-perforated fixed plate (224), respectively, and the piston cylinder 1 (42) is located above the piston cylinder 2 (43), and the piston cylinder 1 (42) and the piston cylinder 2 (43) are fixedly connected. 3) A valve pipe (44) is connected between the two sides close to each other, and a one-way valve is installed at the position where the valve pipe (44) is connected to the piston cylinder 1 (42) and the piston cylinder 2 (43). A reel rod (421) is movably inserted into the interior of the piston cylinder 1 (42), and the reel rod (421) and the piston cylinder 1 (42) form a piston cylinder structure. The end of the reel rod (421) close to the opening fixed plate (224) extends to the outside of the piston cylinder 1 (42) and is connected to the opening fixed plate (224). The hole plate (224) is movably plugged in, the belt reel rod (421) is located on the rotation path of the abutment plate (21), one end of the belt reel rod (421) located inside the piston cylinder (42) is fixedly connected with the inner wall of the piston cylinder (42) with a built-in spring (422), the inside of the piston cylinder (43) is movably plugged with a belt reel bent rod (431), the part of the belt reel bent rod (431) located inside the piston cylinder (43) and the piston cylinder (43) form a The piston cylinder structure comprises an end of the belt-reel curved rod (431) away from the valve tube (44) extending to the outside of the second piston cylinder (43); an end of the belt-reel curved rod (431) close to the rotating shaft (13) is fixedly connected with a toothed ring (432); a position of the outer ring surface of the rotating shaft (13) corresponding to the belt-reel curved rod (431) is provided with a ring-shaped groove (433); an end of the belt-reel curved rod (431) away from the second piston cylinder (43) is fixedly connected with a pull plate (434).

7. The post-operative range of motion training device for joints according to claim 6, characterized in that: The valve tube (44) is made of soft silicone material, and the portion where the valve tube (44) communicates with the second piston cylinder (43) is threadedly connected.

8. The post-operative range of motion training device for joints according to claim 6, characterized in that: A strip rod is provided on the portion of the belt-disk curved rod (431) located inside the second piston cylinder (43), and the strip rod limits the belt-disk curved rod (431) to only be able to move back and forth horizontally in the second piston cylinder (43).

9. The post-operative range of motion training device for joints according to claim 6, characterized in that: The side of the latching tooth ring (432) close to the latching groove (433) is a sawtooth-shaped annular surface, and the latching groove (433) is adapted to be latched with the sawtooth shape.

10. The post-operative range of motion training device for joints according to claim 1, characterized in that: A buffer assembly is provided on one side of the lower arm support plate (15) close to the base plate (1), and the buffer assembly comprises a support block (51) fixedly connected to the side of the lower arm support plate (15) close to the base plate (1); a hole block (52) is fixedly connected to a position on the base plate (1) corresponding to the support block (51); a buffer spring (53) is fixedly connected to a circular hole in the center of the hole block (52); and a semi-ring plate (54) is fixedly connected to one end of the buffer spring (53) close to the support block (51).

Images