An upper limb postoperative rehabilitation exercise device

Abstract

The application belongs to the technical field of rehabilitation apparatuses, and relates to a postoperative rehabilitation exercise device for upper limbs. The postoperative rehabilitation exercise device comprises an upper arm guard plate, an elbow connecting shell fixedly connected to the upper arm guard plate, a lower arm fixing frame limitingly and rotatably connected to the elbow connecting shell, a lower arm guard plate slidably connected to the lower arm fixing frame, a fixing shell fixedly connected to the upper arm guard plate, a T-shaped frame slidably connected to the fixing shell, poles fixedly connected to the fixing shell and the T-shaped frame, a memory titanium wire electrically connected between the poles, and a torsional spring arranged between the elbow connecting shell and the lower arm fixing frame. The postoperative rehabilitation exercise device actively winds the memory titanium wire to drive linear displacement of the T-shaped frame, provides active force for active auxiliary curling of the upper limbs, and resets the lower arm through the torsional spring after power-off, so that curling and stretching of the lower arm are completed, portability and home compliance are considered, and the double defects of heavy fixing of a passive mechanical arm and dependence of a spring band on active force of a patient are overcome.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation equipment technology, and in particular to an upper limb postoperative rehabilitation exercise device. Background Technology

[0002] Patients who have undergone surgery for upper limb fractures, joint replacements, nerve injuries, or tendon repairs need to undergo phased active / assisted active functional exercises after clinical treatment to prevent joint adhesions, muscle atrophy, proprioceptive degeneration, and decreased motor coordination. Especially during the "protective activity period" of 2–6 weeks post-surgery, although patients have a certain degree of independent movement ability, they are limited by pain, insufficient muscle strength, and medical advice, and urgently need an upper limb movement intervention that can be integrated into daily life.

[0003] Currently, common upper limb movement intervention methods mainly fall into two categories:

[0004] First, there are passive robotic arm systems: although they can ensure the integrity of the movement trajectory, they are detached from daily life scenarios, have poor compliance, and are difficult to use at home for a long time.

[0005] Secondly, although home-use pure active / assisted active devices (such as elastic bands and spring supports) are portable and easy to use, the reduction process relies entirely on the patient's active force, making it difficult to complete the full extension and curling movements. This leads to frequent interruptions in active force exertion during exercise, slow improvement in joint mobility, and a persistent risk of adhesions. Summary of the Invention

[0006] To address the problems mentioned in the background section, the present invention provides an upper limb postoperative rehabilitation exercise device.

[0007] The technical solution of the present invention is as follows: an upper limb postoperative rehabilitation exercise device, comprising an upper arm guard plate, an elbow connecting shell fixedly connected to the upper arm guard plate, a cover plate detachably connected to the elbow connecting shell, a forearm fixation frame rotatably connected to the elbow connecting shell, a forearm guard plate slidably connected to the forearm fixation frame, a fixing shell fixedly connected to the upper arm guard plate, a battery compartment provided in the fixing shell, a T-shaped frame slidably connected inside the fixing shell, a pole fixedly connected to both the T-shaped frame and the fixing shell, an electrical connection between the pole and the battery compartment, a memory titanium wire electrically connected between the two poles, guide wheels installed on the upper arm guard plate, the elbow connecting shell and the forearm fixation frame, a connecting rope fixedly connected between the T-shaped frame and the guide wheel located on the forearm fixation frame, the guide wheels on the upper arm guard plate and the elbow connecting shell being used to guide the connecting rope, and a torsion spring provided between the elbow connecting shell and the forearm fixation frame.

[0008] To further explain, the forearm fixation frame is provided with a scale, and the forearm guard plate is slidably connected to a limiting block that limits the position of the forearm fixation frame.

[0009] To further explain, both the upper arm guard plate and the lower arm fixing frame are provided with ventilation holes.

[0010] To further explain, a first sliding block is slidably connected inside the elbow connecting shell, one side of the torsion spring is fixedly connected to the forearm fixing frame, the other side of the torsion spring is fixedly connected to the first sliding block, an arc-shaped rod is fixedly connected to the first sliding block, and a first support block for guiding the arc-shaped rod to slide is fixedly connected to the elbow connecting shell.

[0011] To further explain, the forearm guard plate is fixedly connected to a fixing ring, the fixing ring is rotatably connected to a rotating frame, the rotating frame is fixedly connected to a first housing, the first housing is detachably connected to a second housing, the first housing is slidably connected to four first sliding buckles, the first sliding buckles are fixedly connected to the first housing with a first spring, the first housing is slidably connected to a second sliding buckle, and the second sliding buckle is fixedly connected to the first housing with a second spring.

[0012] To further explain, a second sliding block is slidably connected inside the first housing, a tension spring is fixedly connected between the second sliding block and the first housing, a fixing block is fixedly connected to the second sliding block, and the first sliding buckle is provided with two inclined surfaces. The fixing block is used to press the two inclined surfaces of the first sliding buckle.

[0013] To further explain, the first housing and the rotating frame are jointly fixedly connected to a wire sleeve, and a wire core is slidably connected inside the wire sleeve. The forearm fixing frame is fixedly connected to a second support block, and the second support block is detachably connected to the side of the wire sleeve near the elbow connecting shell. The elbow connecting shell is fixedly connected to a first fixing pin. One side of the wire core is fixedly connected to the second sliding block, and the other side of the wire core is detachably connected to the first fixing pin. A roller is rotatably connected inside the first housing, and the roller is used to guide the wire core.

[0014] To further explain, the second housing is slidably connected to a sliding shell, and a hollow shell is fixedly connected inside the sliding shell. A sealing element is slidably connected inside the hollow shell, and the sealing element passes through the sliding shell. The side of the sealing element away from the hollow shell is used to compress the second sliding block. A third spring is fixedly connected between the sealing element and the sliding shell.

[0015] To further explain, an airbag communicating with the hollow shell is fixedly connected inside the sliding shell, and four compression blocks, each fixedly connected to the airbag, are slidably connected to the sliding shell. Each compression block corresponds to a first sliding buckle, and the first sliding buckle is used to compress the corresponding compression block.

[0016] To further explain, the arc-shaped rod is fixedly connected to a second fixing pin, which is detachably connected to the side of the wire core near the elbow connecting shell. A third support block is fixedly connected inside the elbow connecting shell, and the third support block is detachably connected to the side of the wire sleeve near the elbow connecting shell.

[0017] The advantages of this invention are as follows: By energizing the memory titanium wire, the T-shaped frame is actively wound and driven to move linearly, providing active force for active assisted upper limb curling. After the power is cut off, the torsion spring drives the reset to complete the curling and extension of the forearm. When the patient has the ability to perform rehabilitation exercises independently, the resistance provided by the torsion spring provides resistance to the movement of the patient's forearm, so as to meet the needs of gradual resistance rehabilitation exercises. This takes into account both portability and home compliance, overcomes the dual defects of the bulky and fixed passive robotic arm and the reliance of the elastic band on the patient's active force, reduces exercise interruption, accelerates recovery and reduces the risk of adhesion.

[0018] During the rehabilitation exercise, the first sliding buckle actively drives the fingers to open / grasp within a controllable range, thereby increasing the range of motion of the interphalangeal joints and metacarpophalangeal joints and inhibiting the formation of flexion contractures.

[0019] When patients have the ability to perform independent rehabilitation exercises, the resistance during the patient's forearm curling process is adjusted in real time according to the degree of force exerted by the patient's hand. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the boom guard plate of the present invention;

[0023] Figure 4 This is an exploded three-dimensional view of the upper arm guard plate, the forearm fixing frame, and the forearm guard plate of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the elbow connection shell of the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the first sliding block and the arc-shaped rod of the present invention;

[0026] Figure 7 This is an exploded three-dimensional view of the fixed ring and rotating frame of the present invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the first and second housings of the present invention;

[0028] Figure 9 This is an exploded three-dimensional view of the second housing of the present invention;

[0029] Figure 10 This is a three-dimensional structural cross-sectional view of the first housing of the present invention;

[0030] Figure 11 This is a three-dimensional structural diagram of the second sliding block and the fixed block of the present invention;

[0031] Figure 12 This is a three-dimensional structural cross-sectional view of the sliding shell of the present invention.

[0032] Reference numerals: 1: Arm guard plate, 2: Elbow connection shell, 3: Cover plate, 4: Forearm fixing frame, 5: Forearm guard plate, 6: Fixing shell, 7: Battery compartment, 8: T-shaped frame, 9: Terminal post, 10: Memory titanium wire, 11: Guide wheel, 12: Torsion spring, 13: Limiting block, 14: First sliding block, 15: Arc rod, 16: First support block, 20: Fixing ring, 21: Rotating frame, 22: First housing, 23: Second housing, 24: First sliding buckle, 25: Second sliding buckle, 30: Second sliding block, 31: Fixing block, 33: Cable sleeve, 34: Cable core, 35: Second support block, 36: First fixing pin, 40: Sliding shell, 41: Hollow shell, 42: Seal, 43: Airbag, 44: Compression block, 45: Second fixing pin, 46: Third support block. Detailed Implementation

[0033] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0034] To address the problems of existing upper limb movement intervention methods, such as the large size of passive robotic arm systems, the need for fixed bases, their detachment from daily life scenarios, poor patient compliance at home, and the fact that the repositioning of home elastic bands or spring supports relies entirely on the patient's active force, making it difficult to complete the extension and contraction of joint movements, and even leading to frequent exercise interruptions, slow improvement of joint mobility, and the persistent risk of adhesions, this invention solves the above problems through the following methods.

[0035] Example 1

[0036] An upper limb postoperative rehabilitation exercise device, such as Figures 1-7As shown, the device includes a boom guard plate 1, an elbow connection shell 2 fixedly connected to the lower side of the boom guard plate 1, a cover plate 3 detachably connected to the front side of the elbow connection shell 2, a forearm fixing frame 4 rotatably connected to the elbow connection shell 2, a forearm guard plate 5 slidably connected to the lower side of the forearm fixing frame 4, a fixing shell 6 fixedly connected to the upper part of the front side of the boom guard plate 1, a battery compartment 7 provided in the fixing shell 6, a T-shaped frame 8 slidably connected inside the fixing shell 6, and terminal posts 9 fixedly connected to both the T-shaped frame 8 and the fixing shell 6. The terminal posts 9 are electrically connected to the battery compartment 7, and there is a connection between the two terminal posts 9. The upper arm guard plate 1, elbow connecting shell 2, and forearm fixation frame 4 are all equipped with guide wheels 11. A connecting rope is fixed between the T-shaped frame 8 and the guide wheel 11 located on the forearm fixation frame 4. The guide wheels 11 on the upper arm guard plate 1 and elbow connecting shell 2 are used to guide the connecting rope. A torsion spring 12 is provided between the elbow connecting shell 2 and the forearm fixation frame 4. The forearm fixation frame 4 is provided with a scale. The forearm guard plate 5 is slidably connected to a limiting block 13 that limits the position of the forearm fixation frame 4. Both the upper arm guard plate 1 and the forearm fixation frame 4 are provided with ventilation holes.

[0037] In the above scheme, a control terminal is installed on the upper side of the upper arm guard plate 1. The control terminal is electrically connected to the electronic components in this device. Both the upper arm guard plate 1 and the forearm guard plate 5 are equipped with straps. The memory titanium wire 10, also known as nickel-titanium memory alloy wire, avoids the inherent limitations of passive robotic arms, such as large size and fixed installation, and elastic band devices, which rely entirely on the patient's active force, by switching the power on and off the memory titanium wire 10 and the reset force provided by the torsion spring 12. It can provide reliable active and passive coordinated drive for patients with low muscle strength and promote rapid recovery of joint range of motion. There is friction between the limiting block 13 and the forearm guard plate 5, which is used to keep the limiting block 13 relatively stationary with the forearm guard plate 5 when there is no external force.

[0038] like Figure 5 and Figure 6 As shown, a first sliding block 14 is slidably connected inside the elbow connecting shell 2. One side of the torsion spring 12 is fixedly connected to the forearm fixing frame 4, and the other side of the torsion spring 12 is fixedly connected to the first sliding block 14. An arc-shaped rod 15 is fixedly connected to the first sliding block 14, and a first support block 16 for guiding the arc-shaped rod 15 to slide is fixedly connected to the elbow connecting shell 2.

[0039] In the above scheme, when it is necessary to adjust the torque of the torsion spring 12 (adjusting the torque of the torsion spring 12 is to increase the resistance during the patient's rehabilitation exercise), the arc rod 15 drives the torsion spring 12 to gradually tighten through the first sliding block 14. After the adjustment is completed, the arc rod 15 can be locked, which can be fixed by a pin (not shown in the figure).

[0040] like Figure 1 , Figure 2 and Figures 7-11As shown, a fixing ring 20 is fixedly connected to the lower side of the forearm guard plate 5. The fixing ring 20 is rotatably connected to a rotating frame 21. The rotating frame 21 is fixedly connected to a first housing 22. The first housing 22 is detachably connected to a second housing 23. The first housing 22 is slidably connected to four first sliding buckles 24. A first spring is fixedly connected between the first sliding buckle 24 and the first housing 22. The first housing 22 is slidably connected to a second sliding buckle 25. A second spring is fixedly connected between the second sliding buckle 25 and the first housing 22.

[0041] In the above scheme, a steel ball for reducing frictional resistance can be installed between the fixed ring 20 and the rotating frame 21. When the patient wants to exercise the grip strength of his fingers, the patient presses the first sliding buckle 24 with his fingers. The resistance provided by the first spring adjacent to the first sliding buckle 24 gives the patient's fingers feedback, so as to achieve the effect of exercising the fingers.

[0042] like Figure 5 , Figure 6 and Figures 9-11 As shown, a second sliding block 30 is slidably connected inside the first housing 22. A tension spring is fixed between the second sliding block 30 and the first housing 22. A fixing block 31 is fixed to the second sliding block 30. The first sliding buckle 24 has two inclined surfaces. The fixing block 31 is used to press the two inclined surfaces of the first sliding buckle 24. A wire sleeve 33 is fixedly connected to the first housing 22 and the rotating frame 21. A wire core 34 is slidably connected inside the wire sleeve 33. A second support block 35 is fixedly connected to the forearm fixing frame 4. The second support block 35 is detachably connected to the side of the wire sleeve 33 near the elbow connecting housing 2. A first fixing pin 36 is fixed to the elbow connecting housing 2. One side of the wire core 34 is fixed to the second sliding block 30, and the other side of the wire core 34 is detachably connected to the first fixing pin 36. A roller is rotatably connected inside the first housing 22. The roller is used to guide the wire core 34.

[0043] In the above scheme, the lower side of the fixing block 31 is provided with two arc-shaped surfaces to facilitate the compression of the first sliding buckle 24 by the fixing block 31. When the patient has the ability to exercise independently, the second sliding block 30 is moved by the core 34, so that the second sliding block 30 actively compresses the first sliding buckle 24 and the first sliding buckle 24 actively drives the patient's fingers to open within a controllable range, thereby increasing the range of motion of the interphalangeal joints and metacarpophalangeal joints, inhibiting the formation of flexion contractures, and promoting the integration and coordination reconstruction of neuromuscular functions.

[0044] Working principle: When a patient needs to perform rehabilitation exercises, this device is installed on the patient's arm (this invention is based on the patient's left arm; if the right arm needs to be exercised, the opposite device can be used). First, the patient's upper arm is fixed by the straps of the upper arm guard 1. When it is necessary to adjust according to the length of the patient's arm, the limiting block 13 is slid to the right so that it no longer limits the forearm guard 5. Then, the medical staff pulls the forearm guard 5 down. When the adjustment distance is in line with the length of the patient's arm, the limiting block 13 is slid to the left so that it limits the forearm guard 5. After the adjustment is completed, the patient puts his / her hand through the upper side of the rotating frame 21. The medical staff places the patient's fingers into the second sliding buckle 25 and the four first sliding buckles 24 in sequence and makes the patient hold the first shell 22. Then, the patient's forearm is fixed by the straps of the forearm guard 5. This completes the preparation work before the patient's rehabilitation exercises.

[0045] After the patient completes the preparations for rehabilitation exercises, the medical staff puts the battery into the battery compartment 7, and then controls the battery to heat the memory titanium wire 10 through the control terminal. The memory titanium wire 10 shrinks after being heated. During the shrinkage process, the memory titanium wire 10 drives the T-shaped frame 8 to move upward. The T-shaped frame 8 pulls the guide wheel 11 on the forearm fixation frame 4 through the connecting rope, so that the forearm guard plate 5 drives the forearm fixation frame 4 to swing to the left along the elbow connecting shell 2 (during this process, the torsion spring 12 is twisted).

[0046] Once the patient's forearm swing amplitude meets the rehabilitation exercise criteria, the control terminal cuts off the power to the memory titanium wire 10. Then, under the action of the torsion spring 12 providing the restoring force, the forearm fixation frame 4 drives the patient's forearm to extend. Through the above actions, the patient's forearm is flexed and extended. By cutting off and connecting the power to the memory titanium wire 10, the drive unit is made lightweight and miniaturized. Combined with the restoring force provided by the torsion spring 12, this device is both lightweight and portable and suitable for home use. It effectively avoids the inherent limitations of passive robotic arms, which are bulky and require fixed installation, and elastic band devices, which rely entirely on the patient's active force. It can provide reliable active and passive coordinated drive for patients with low muscle strength, ensure the complete execution of joint movement cycles, reduce the rate of exercise interruption, and promote rapid recovery of joint range of motion.

[0047] During the patient's forearm curling, the first fixing pin 36 pulls the core 34 to slide outward along the sleeve 33, causing the core 34 to drive the second sliding block 30 to move to the left. During the movement of the second sliding block 30, the adjacent tension spring is stretched (making the tension spring in a stretched state). During the movement of the second sliding block 30, the adjacent first sliding buckle 24 is pressed down by the fixing block 31 and the adjacent first spring is pressed, making the first spring in a contracted state.

[0048] When the fixed block 31 passes the adjacent first sliding buckle 24, the first sliding buckle 24 moves upward and resets under the action of the first spring. Through the above action, the first sliding buckle 24 moves downward and then upward to reset. The reciprocating movement of the first sliding buckle 24 provides active assistance to the patient's fingers, driving the fingers to complete the opening action, so that the patient's arm can complete the opening and grasping action within a controllable range, thereby improving the range of motion of the interphalangeal joints and metacarpophalangeal joints, preventing flexion contractures, and improving neuromuscular coordination.

[0049] When the second sliding block 30 passes the last first sliding buckle 24, the second sliding block 30 continues to move and will squeeze the second sliding buckle 25 (after the second sliding buckle 25 is squeezed, the second spring is in a compressed state), causing the second sliding buckle 25 to drive the patient's thumb to move.

[0050] After the patient completes the forearm curl, the forearm fixation frame 4 causes the patient's forearm to extend under the action of the torsion spring 12, while the second sliding block 30 moves to the right and resets under the action of the tension spring. During the movement of the second sliding block 30, it no longer presses the second sliding buckle 25 and presses the first sliding buckle 24 in sequence. The first sliding buckle 24 resets under the action of the first spring, and the second sliding buckle 25 resets under the action of the second spring.

[0051] When the patient has the ability to exercise independently, the bending and stretching of the patient's forearm can be achieved without switching the power on and off the memory titanium wire 10. The patient's independent exercise process is as follows:

[0052] The patient's forearm causes the forearm guard 5 and forearm fixation frame 4 to swing to the left along the elbow connecting shell 2. During this process, the torsion spring 12 provides resistance to the movement of the patient's forearm through its own torque, so as to meet the needs of gradual resistance rehabilitation exercise. (When it is necessary to adjust the torque of the torsion spring 12 and increase the resistance during the patient's rehabilitation exercise, the cover plate 3 is removed, the arc rod 15 is pulled, and the arc rod 15 drives the torsion spring 12 to gradually tighten through the first sliding block 14. After the adjustment is completed, the arc rod 15 can be locked, which can be fixed by a pin.) When the patient has the ability to perform rehabilitation exercises independently, the first sliding buckle 24 can be pressed to pull the first spring. The resistance given by the first spring can achieve the effect of exercising the fingers.

[0053] Example 2

[0054] Based on Example 1, such as Figure 5 , Figure 6 , Figures 8-10 and Figure 12 As shown, in order to enable patients to have the ability to perform rehabilitation exercises independently, and to achieve the effect of adjusting the exercise resistance at any time during the rehabilitation exercise process, the following explanation is provided:

[0055] The second housing 23 is slidably connected to a sliding shell 40. A hollow shell 41 is fixedly connected inside the sliding shell 40. A sealing element 42 is slidably connected inside the hollow shell 41. The sealing element 42 passes through the sliding shell 40. The side of the sealing element 42 away from the hollow shell 41 is used to compress the second sliding block 30. A third spring is fixedly connected between the sealing element 42 and the sliding shell 40. An airbag 43 connected to the hollow shell 41 is fixedly connected inside the sliding shell 40. Four compression blocks 44 are slidably connected to the sliding shell 40 and are all fixedly connected to the airbag 43. The compression blocks 44 correspond one-to-one with the first sliding buckle 24. The first sliding buckle 24 is used to compress the corresponding compression block 44. A second fixing pin 45 is fixedly connected to the arc rod 15. The second fixing pin 45 is detachably connected to the side of the wire core 34 near the elbow connecting shell 2. A third support block 46 is fixedly connected inside the elbow connecting shell 2. The third support block 46 is detachably connected to the side of the wire sleeve 33 near the elbow connecting shell 2.

[0056] In the above scheme, during the patient's self-rehabilitation exercise, the patient presses the first sliding buckle 24, which indirectly drives the first sliding block 14 to gradually tighten the torsion spring 12. Therefore, the resistance effect during the patient's forearm curling is adjusted in real time according to the force exerted by the patient's hand.

[0057] Working principle: When the patient has the ability to exercise independently, the medical staff or the patient removes the cover plate 3, then removes the upper side of the suture sleeve 33 from the second support block 35 and installs it onto the third support block 46. Then, the upper side of the suture core 34 is removed from the first fixing pin 36 and installed onto the second fixing pin 45 (at this time, the arc rod 15 is in the state shown in the attached figure). Finally, the sliding shell 40 is pushed forward so that the right side of the seal 42 contacts the second sliding block 30, and the first sliding buckle 24 contacts the corresponding squeezing block 44. This process switches to the mode where the patient can exercise freely and adjust the intensity of rehabilitation exercises independently.

[0058] When the device is switched to a mode where the patient can adjust the intensity of rehabilitation exercises, the patient grips the first sliding buckle 24. The first sliding buckle 24 moves upward and squeezes the compression block 44 (stretching the first spring during the movement of the first sliding buckle 24). The compression block 44 squeezes the airbag 43, allowing the gas inside the airbag 43 to enter the hollow shell 41 and push the seal 42 to the right (compressing the third spring during the movement of the seal 42). The seal 42 drives the second sliding block 30 to move to the right. The second sliding block 30 pulls the wire core 34, causing the wire core 34 to slide within the wire sleeve 33. The wire core 34 pulls the second fixing pin 45, which in turn pulls the first sliding block via the arc-shaped rod 15. 14. As the first sliding block 14 slides along the elbow connecting shell 2, the torsion spring 12 twists, thereby increasing the resistance during the patient's forearm curling process. When the patient needs to reduce the resistance of rehabilitation exercise, the patient's hand relaxes, the first sliding buckle 24 is driven to reset by the first spring, the seal 42 is driven to reset by the third spring, the seal 42 squeezes the gas in the hollow shell 41, causing the gas in the hollow shell 41 to return to the airbag 43, and the airbag 43 drives the squeezing block 44 to move downwards to reset. Through the movement of the above parts, the resistance during the patient's forearm curling process can be adjusted in real time according to the degree of force exerted by the patient's hand, and the patient can adjust the exercise resistance at any time during rehabilitation exercise.

[0059] When the patient needs to switch to the state described in Example 1, simply return the aforementioned parts to their original positions.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A postoperative rehabilitation exercise device for the upper limb, comprising an upper arm guard (1), wherein the upper arm guard (1) is fixedly connected to an elbow connecting shell (2), and the elbow connecting shell (2) is detachably connected to a cover plate (3), characterized in that, It also includes a forearm fixing frame (4), which is rotatably connected to the elbow connecting shell (2). The forearm fixing frame (4) is slidably connected to a forearm guard plate (5). The upper arm guard plate (1) is fixedly connected to a fixing shell (6). The fixing shell (6) is provided with a battery compartment (7). A T-shaped frame (8) is slidably connected inside the fixing shell (6). The T-shaped frame (8) and the fixing shell (6) are both fixedly connected with pole posts (9). The pole posts (9) are electrically connected to the battery compartment (7). The two pole posts are... (9) are electrically connected by a memory titanium wire (10). The upper arm guard plate (1), the elbow connecting shell (2) and the forearm fixing frame (4) are all equipped with guide wheels (11). A connecting rope is fixed between the T-shaped frame (8) and the guide wheel (11) located on the forearm fixing frame (4). The guide wheels (11) on the upper arm guard plate (1) and the elbow connecting shell (2) are used to guide the connecting rope. A torsion spring (12) is provided between the elbow connecting shell (2) and the forearm fixing frame (4). The elbow connecting shell (2) is slidably connected to a first sliding block (14). One side of the torsion spring (12) is fixed to the forearm fixing frame (4), and the other side of the torsion spring (12) is fixed to the first sliding block (14). The first sliding block (14) is fixed to an arc-shaped rod (15). The elbow connecting shell (2) is fixed to a first support block (16) for guiding the arc-shaped rod (15) to slide. The forearm guard plate (5) is fixedly connected to a fixing ring (20), the fixing ring (20) is rotatably connected to a rotating frame (21), the rotating frame (21) is fixedly connected to a first housing (22), the first housing (22) is detachably connected to a second housing (23), the first housing (22) is slidably connected to four first sliding buckles (24), the first sliding buckles (24) are fixedly connected to the first housing (22) with a first spring, the first housing (22) is slidably connected to a second sliding buckle (25), the second sliding buckle (25) is fixedly connected to the first housing (22) with a second spring; A second sliding block (30) is slidably connected inside the first housing (22). A wire sleeve (33) is fixedly connected to the first housing (22) and the rotating frame (21). A wire core (34) is slidably connected inside the wire sleeve (33). A second support block (35) is fixedly connected to the forearm fixing frame (4). The second support block (35) is detachably connected to the wire sleeve (33) on the side near the elbow connecting shell (2). A first fixing pin (36) is fixedly connected to the elbow connecting shell (2). One side of the wire core (34) is fixedly connected to the second sliding block (30). The other side of the wire core (34) is detachably connected to the first fixing pin (36). A roller is rotatably connected inside the first housing (22). The roller is used to guide the wire core (34). The arc-shaped rod (15) is fixedly connected to a second fixing pin (45), which is detachably connected to the wire core (34) on the side near the elbow connecting shell (2). A third support block (46) is fixedly connected inside the elbow connecting shell (2), and the third support block (46) is detachably connected to the wire sleeve (33) on the side near the elbow connecting shell (2).

2. The upper limb postoperative rehabilitation exercise device according to claim 1, characterized in that: The forearm fixing frame (4) is provided with a scale, and the forearm guard plate (5) is slidably connected to a limiting block (13) that limits the position of the forearm fixing frame (4).

3. The upper limb postoperative rehabilitation exercise device according to claim 2, characterized in that: Both the upper arm guard plate (1) and the lower arm fixing frame (4) are provided with ventilation holes.

4. The upper limb postoperative rehabilitation exercise device according to claim 1, characterized in that: A tension spring is fixed between the second sliding block (30) and the first housing (22). A fixing block (31) is fixed to the second sliding block (30). The first sliding buckle (24) is provided with two inclined surfaces. The fixing block (31) is used to press the two inclined surfaces of the first sliding buckle (24).

5. The upper limb postoperative rehabilitation exercise device according to claim 1, characterized in that: The second housing (23) is slidably connected to a sliding shell (40), and a hollow shell (41) is fixedly connected inside the sliding shell (40). A sealing element (42) is slidably connected inside the hollow shell (41). The sealing element (42) passes through the sliding shell (40). The side of the sealing element (42) away from the hollow shell (41) is used to squeeze the second sliding block (30). A third spring is fixedly connected between the sealing element (42) and the sliding shell (40).

6. The upper limb postoperative rehabilitation exercise device according to claim 5, characterized in that: An airbag (43) communicating with the hollow shell (41) is fixedly connected inside the sliding shell (40). The sliding shell (40) is slidably connected to four compression blocks (44) that are all fixedly connected to the airbag (43). The compression blocks (44) correspond one-to-one with the first sliding buckle (24). The first sliding buckle (24) is used to compress the corresponding compression block (44).

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