Jian-shou daoyin type shoulder joint postoperative elastic relaxation traction device

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, concretely is hand -building guide formula shoulder joint postoperative elasticity relaxation traction device, it includes bottom plate and the connecting plate fixedly connected at the top of bottom plate. The utility model discloses the self -lock wheel of bottom plate bottom four corners, is convenient for with device stable removal to open area and lock, interval adjusting unit is driven double -threaded rod by stepping motor one, makes two sides movable block relative movement, accurate adjustment two sides reset unit interval to patient arm just above, height adjusting unit lets rectangular toothed plate drive half lifting column to slide by stepping motor two, adjusts reset unit height in detail, and the patient holds handle conveniently, angle adjusting unit makes reset unit tilt through stepping motor three, and the cooperation of the former two, according to patient rehabilitation stage, the arm inclination angle is adjusted flexibly, and the training accuracy is improved, when training, the patient pulls handle, and the rehabilitation movement is realized with the cooperation of tension spring, and connecting plate outside restraint unit can still guarantee training safety and stability.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a healthy hand-guided postoperative elastic relaxation traction device for shoulder joint. Background Technology

[0002] The shoulder joint refers to the part connecting the upper limb and the trunk, including the upper arm, armpit, chest area, and back area where the scapula is located. It is composed of the glenoid cavity of the scapula and the head of the humerus. It is a ball-and-socket joint and the largest and most flexible joint in the upper limb. After shoulder surgery, patients need to use certain exercises to recover. Common recovery exercises include assisted external rotation training, shoulder pendulum training, active forward movement training, and passive internal rotation training. For this purpose, a shoulder postoperative exercise device is needed to help patients with postoperative recovery.

[0003] Chinese patent CN215351814U discloses a post-shoulder joint exercise device, including a mounting plate, a mounting frame, and a rotation damper. The mounting plate has two sets of fixed seats on its top, a bracket on top of each fixed seat, and an extension frame on top of each bracket. The mounting frame is secured to the top of the fixed seats via the extension frame. Two sets of adjustable seats are mounted on the outer sides of the mounting frame, with a side locking seat on one side of each adjustable seat. This invention, by installing two sets of adjustable seats on the outer sides of the mounting frame, allows for vertical mounting of the device when seated external rotation training is required. When the patient needs to perform shoulder pendulum training, the mounting frame can be horizontally mounted using the bottom locking seat of the adjustable seat, allowing the patient to naturally lower their upper limb and grip the handle. This design meets various training needs of the patient.

[0004] Although the aforementioned device enables pendulum training of the shoulder joint by having the patient hold the movable handle and drive the cross to rotate, in actual shoulder joint rehabilitation training scenarios, a more common and effective training method is to guide the patient to perform reciprocating movements of bending or tilting both shoulder joints upwards. This movement pattern achieves the goal of shoulder joint rehabilitation training. For this reason, those skilled in the art have proposed a healthy hand-guided postoperative elastic relaxation traction device for the shoulder joint. Utility Model Content

[0005] To address the issue of how existing technologies can more quickly and effectively guide patients to perform reciprocating movements of both shoulder joints, either flexing upwards or tilting upwards.

[0006] To solve the above problems, the present invention adopts the following technical solution: A postoperative elastic relaxation traction device for shoulder joint guided by a healthy hand includes a base plate and a connecting plate fixedly connected to the top of the base plate. A top frame is fixedly connected to the top of the connecting plate away from the base plate. A bottom groove is formed at the bottom of the top frame. A spacing adjustment unit is arranged inside the bottom groove. A reset unit is arranged on both sides below the spacing adjustment unit. A height adjustment unit is arranged on the top of each reset unit. An angle adjustment unit is arranged between each height adjustment unit and the spacing adjustment unit. A constraint unit is arranged on the outside of the connecting plate. The reset unit includes a telescopic rod, a tension spring sleeved on the outside of the telescopic rod, and a pull block fixedly connected to the bottom of the telescopic rod and the tension spring; The spacing adjustment unit is used to adjust the spacing between the two reset units, the height adjustment unit is used to adjust the height of the corresponding reset unit relative to the base plate, the angle adjustment unit is used to adjust the tilt angle of the corresponding reset unit, and the constraint unit is used to constrain and fix the patient.

[0007] In a preferred embodiment of the present invention, the spacing adjustment unit includes a double-threaded rod disposed inside the bottom groove and two sets of guide rods. One end of the double-threaded rod is rotatably connected to the inner wall of the top frame. A stepper motor is fixedly installed on the outer side of the top frame. The output end of the stepper motor extends into the bottom groove and is fixedly connected to the other end of the double-threaded rod. The two sets of guide rods are symmetrically distributed on opposite sides of the double-threaded rod, and both ends of the two sets of guide rods are fixedly connected to the inner wall of the top frame.

[0008] In a preferred embodiment of the present invention, both ends of the double-threaded rod are threaded with movable blocks, which slide on the outside of the two sets of guide rods. The front side of the top frame is provided with two sets of dovetail grooves, and dovetail blocks are slidably connected inside the two sets of dovetail grooves. The bottom groove communicates with the dovetail grooves through a connecting groove, and the movable blocks are fixedly connected to the dovetail blocks through the connecting blocks.

[0009] In a preferred embodiment of the present invention, the height adjustment unit includes a hollow cylinder that is fixedly connected to the bottom of the movable block and has an open bottom structure. A semi-lifting column is slidably connected inside the hollow cylinder. A rectangular toothed plate is fixedly connected to the outside of the semi-lifting column. A mounting plate is fixedly connected to the outside of the hollow cylinder. A stepper motor is fixedly mounted on the outside of the mounting plate.

[0010] In a preferred embodiment of the present invention, the output end of the second stepper motor passes through the mounting plate and is fixedly connected to a first gear. A slot is provided on the outer side of the cavity cylinder, and the first gear meshes with a rectangular toothed plate through the slot. A baffle is fixedly connected to the bottom of the semi-lifting column, and the diameter of the baffle is larger than the outer diameter of the cavity cylinder. The tops of the telescopic rod and the tension spring are both fixedly connected to the baffle.

[0011] In a preferred embodiment of the present invention, the angle adjustment unit includes a following plate fixedly connected to the dovetail block. A stepper motor three is fixedly installed on the outer side of the following plate. The output end of the stepper motor three passes through the following plate and is fixedly connected to a gear two. A gear three is meshed with the outer side of the gear two. A rotating rod is fixedly connected to the middle of the gear three. One end of the rotating rod is fixedly connected to the outer side of the cavity cylinder, and the other end of the rotating rod is rotatably connected to the following plate through a bearing.

[0012] In a preferred embodiment of the present invention, the bottom four corners of the base plate are provided with self-locking wheels, and the outer side of the base plate is provided with steps that slope towards the ground.

[0013] In a preferred embodiment of the present invention, handles are provided on both sides of the pull block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The self-locking wheels at the four corners of the bottom of the base plate in this utility model facilitate the smooth movement and locking of the entire device to an open area. The outer steps allow patients to easily climb onto the base plate and stand, preparing for rehabilitation training. Regarding adjustment functions, the spacing adjustment unit, driven by a stepper motor, rotates a double-threaded rod, causing the two movable blocks on either side to move relative to each other under the guidance of a guide rod. This, in turn, moves the height adjustment unit and the reset unit, allowing precise adjustment of the spacing between the two reset units to ensure they are positioned directly above the patient's arm. The height adjustment unit, driven by a stepper motor, rotates a gear, causing a rectangular toothed plate to slide the semi-lifting column within the cavity, finely adjusting the height of the reset unit relative to the base plate, allowing the patient to naturally and comfortably grip the handle on the front of the pull block. (Angle) The adjustment unit, driven by stepper motor three, rotates gears two and three, causing the rotating rod to tilt the height adjustment unit, which in turn tilts the reset unit. Working in conjunction with the spacing and height adjustment units, this allows for flexible adjustment of the upward tilt angle of the arm according to different stages of the patient's rehabilitation, greatly improving the accuracy and reliability of post-operative shoulder joint rehabilitation training. During rehabilitation training, the patient pulls down on the handle, causing the pull block to descend along the telescopic rod, forcing the tension spring to stretch. When the force is released, the tension spring causes the pull block to rise. The patient intermittently exerts downward force with their arm to achieve effective post-operative rehabilitation exercises for the shoulder joint. Furthermore, the constraint unit on the outside of the connecting plate can restrain and fix the patient, ensuring the safety and stability of the training process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional cross-sectional view of the internal structure of the top frame of this utility model. Figure 3 For the present utility model Figure 2A magnified three-dimensional structural diagram of a portion of point A in the middle; Figure 4 This is a three-dimensional structural diagram of the height adjustment unit of this utility model; Figure 5 This is a three-dimensional structural diagram of the angle adjustment unit of this utility model.

[0016] In the picture: 1. Base plate; 101. Self-locking wheels; 102. Steps; 2. Connecting plate; 3. Top frame; 301. Bottom groove; 302. Connecting groove; 303. Dovetail groove; 4. Spacing adjustment unit; 401. Double-threaded rod; 402. Stepper motor one; 403. Guide rod; 404. Movable block; 405. Connecting block; 406. Dovetail block; 5. Height adjustment unit; 501. Hollow cylinder; 502. Semi-lifting column; 503. Rectangular toothed plate; 504. Mounting plate; 505. Stepper motor II; 506. Gear I; 507. Slot; 508. Baffle; 6. Telescopic rod; 7. Tension spring; 8. Pull block; 9. Angle adjustment unit; 901. Follower plate; 902. Stepper motor three; 903. Gear two; 904. Gear three; 905. Rotating rod; 10. Constraint Units. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] Example 1: As attached Figure 1 To be continued Figure 5As shown, this utility model provides a postoperative elastic relaxation traction device for the shoulder joint using a guided method, including a base plate 1 and a connecting plate 2 fixedly connected to the top of the base plate 1. A top frame 3 is fixedly connected to the top of the connecting plate 2 away from the base plate 1. A bottom groove 301 is formed at the bottom of the top frame 3. A spacing adjustment unit 4 is arranged inside the bottom groove 301. A reset unit is arranged on both sides below the spacing adjustment unit 4. A height adjustment unit 5 is arranged on the top of each reset unit. An angle adjustment unit 9 is arranged between each height adjustment unit 5 and the spacing adjustment unit 4. A constraint unit 1 is arranged on the outer side of the connecting plate 2. 0; The repositioning unit includes a telescopic rod 6, a tension spring 7 sleeved on the outside of the telescopic rod 6, and a pull block 8 fixedly connected to the bottom of the telescopic rod 6 and the tension spring 7; the spacing adjustment unit 4 is used to adjust the spacing between the two repositioning units, the height adjustment unit 5 is used to adjust the height of the corresponding repositioning unit relative to the base plate 1, the angle adjustment unit 9 is used to adjust the tilt angle of the corresponding repositioning unit, the restraint unit 10 is used to restrain and fix the patient, the four corners of the bottom of the base plate 1 are provided with self-locking wheels 101, the outer side of the base plate 1 is provided with steps 102 that slope towards the ground, and the pull block 8 is provided with handles on both sides.

[0019] Using the self-locking wheels 101, the entire device is smoothly moved to an open area and locked. The patient then ascends the base plate 1 via steps 102 and is secured by restraint unit 10. Restraint unit 10 is a common restraint strap device and is not used here. At this point, medical staff, based on the patient's body shape, operate the spacing adjustment unit 4 to precisely adjust the positions of the two repositioning units, ensuring they are directly above the patient's arms. Then, using the height adjustment unit 5, the height of the two repositioning units from the base plate 1 is finely adjusted until the patient can naturally and comfortably grip the handle located in front of the pull block 8 when raising their arm. During rehabilitation training, the patient pulls down... When the patient grips the handle, the pull block 8 descends smoothly along the extension direction of the telescopic rod 6. At the same time, the tension spring 7 is forced to stretch. When the patient releases the grip and releases the force of the hand, the elastic potential energy of the tension spring 7 is released, causing the pull block 8 to rise again. This cycle continues, allowing the patient to intermittently exert downward force with their arm, achieving effective rehabilitation exercises after shoulder joint surgery. It is worth mentioning that the angle adjustment unit 9 can tilt the two sides of the reduction unit towards the arm. Through the coordination with the spacing adjustment unit 4 and the height adjustment unit 5, the patient can grip the handle on the side of the pull block 8 and flexibly adjust the angle of the patient's arm tilting upward according to different rehabilitation stages, greatly improving the accuracy and reliability of postoperative rehabilitation training for shoulder joint surgery.

[0020] Example 2: As attached Figure 2 To be continued Figure 3As shown, this embodiment is basically the same as the previous embodiment, except that the spacing adjustment unit 4 includes a double-threaded rod 401 and two sets of guide rods 403 disposed inside the bottom groove 301. One end of the double-threaded rod 401 is rotatably connected to the inner wall of the top frame 3. A stepper motor 402 is fixedly installed on the outer side of the top frame 3. The output end of the stepper motor 402 extends into the bottom groove 301 and is fixedly connected to the other end of the double-threaded rod 401. The two sets of guide rods 403 are symmetrically distributed on the double-threaded rod 401. On opposite sides, both ends of the two sets of guide rods 403 are fixedly connected to the inner wall of the top frame 3. Both ends of the double-threaded rods 401 are threaded with movable blocks 404. The movable blocks 404 slide on the outside of the two sets of guide rods 403. Two sets of dovetail grooves 303 are opened on the front side of the top frame 3. Dovetail blocks 406 are slidably connected inside the two sets of dovetail grooves 303. The bottom groove 301 communicates with the dovetail grooves 303 through the connecting groove 302. The movable blocks 404 are fixedly connected to the dovetail blocks 406 through the connecting block 405.

[0021] When stepper motor 402 is turned on, it drives the double-threaded rod 401 to rotate. Since the threaded grooves on both sides of the double-threaded rod 401 are opened in opposite directions, under the guidance of the two sets of guide rods 403, the movable blocks 404 on both sides move closer or further apart. During the movement of the movable block 404, the dovetail block 406 is driven to slide in the dovetail groove 303 through the connecting block 405, thereby driving the height adjustment unit 5 and the reset unit to move relative to each other through the dovetail groove 303.

[0022] Example 3: As attached Figure 4 As shown, this embodiment is basically the same as the previous embodiment, except that the height adjustment unit 5 includes a hollow cylinder 501 with an open bottom that is fixedly connected to the bottom of the movable block 404. A semi-lifting column 502 is slidably connected inside the hollow cylinder 501. A rectangular toothed plate 503 is fixedly connected to the outside of the semi-lifting column 502. A mounting plate 504 is fixedly connected to the outside of the hollow cylinder 501. A second stepper motor 505 is fixedly mounted on the outside of the mounting plate 504. The output end of the second stepper motor 505 passes through the mounting plate 504 and is fixedly connected to a gear 506. A slot 507 is opened on the outside of the hollow cylinder 501. The gear 506 meshes with the rectangular toothed plate 503 through the slot 507. A baffle 508 is fixedly connected to the bottom of the semi-lifting column 502. The diameter of the baffle 508 is larger than the outer diameter of the hollow cylinder 501. The tops of the telescopic rod 6 and the tension spring 7 are both fixedly connected to the baffle 508.

[0023] When stepper motor 2 505 is turned on, it drives gear 1 506 to rotate. The rotation of gear 1 506 causes the meshing rectangular toothed plate 503 to drive the semi-lifting column 502 to slide inside the cavity cylinder 501, thereby driving the reset unit to rise and fall.

[0024] Example 4: As attached Figure 5 As shown, this embodiment is basically the same as the previous embodiment, except that the angle adjustment unit 9 includes a following plate 901 fixedly connected to the dovetail block 406. A stepper motor 902 is fixedly installed on the outer side of the following plate 901. The output end of the stepper motor 902 passes through the following plate 901 and is fixedly connected to a gear 903. A gear 904 is meshed on the outer side of the gear 903. A rotating rod 905 is fixedly connected to the middle of the gear 904. One end of the rotating rod 905 is fixedly connected to the outer side of the cavity cylinder 501, and the other end of the rotating rod 905 is rotatably connected to the following plate 901 through a bearing.

[0025] When stepper motor 3 (902) is turned on, it drives gear 2 (903) to rotate. Gear 2 (903) rotates, which in turn drives gear 3 (904) to rotate. Gear 3 (904) rotates, which in turn drives the central rotating rod 905 to rotate. The rotating rod 905 causes the height adjustment unit 5 to tilt, thereby causing the reset unit to tilt relative to it.

[0026] Working principle: Using self-locking wheels 101, the entire device is smoothly moved to an open area and locked. The patient then ascends the base plate 1 via steps 102 and is secured by restraint unit 10. At this point, medical personnel activate stepper motor 402 based on the patient's body shape. Stepper motor 402 drives the double-threaded rod 401 to rotate. Because the threaded grooves on both sides of the double-threaded rod 401 are in opposite directions, under the guidance of two sets of guide rods 403, the two movable blocks 404 move closer or further apart. During the movement of the movable block 404, the connecting block 405 drives the dovetail block 406 to slide within the dovetail groove 303. This, in turn, causes the height adjustment unit 5 and the reset unit to move relative to each other, positioning them precisely above the patient's arm. Stepper motor 2 505 is then activated, driving gear 1 506 to rotate. The rotation of gear 1 506 causes the meshing rectangular toothed plate 503 to slide the semi-lifting column 502 within the hollow cylinder 501, thereby raising and lowering the reset unit until the patient lifts their arm upwards. When the arm is in motion, the hand can naturally and comfortably grip the handle located on the front side of the pull block 8. During rehabilitation training, the patient pulls down the handle, and the pull block 8 will descend smoothly along the extension direction of the telescopic rod 6. At the same time, the tension spring 7 is forced to stretch. When the patient releases the handle and releases the force of the hand, the elastic potential energy of the tension spring 7 is released, causing the pull block 8 to rise again. This cycle continues, and the patient achieves effective rehabilitation exercises for the shoulder joint after surgery by intermittently exerting force downward with the arm. Stepper motor 3 902 is activated, which drives gear 2 903 to rotate. Gear 2 903 rotates, which drives gear 3 904 to rotate. Gear 3 904 rotates, which drives the central rotating rod 905 to rotate. The rotating rod 905 causes the height adjustment unit 5 to tilt, thereby causing the reset unit to tilt relatively. Through the coordinated action of the spacing adjustment unit 4 and the height adjustment unit 5, the patient grips the handle on the side of the pull block 8, and the angle of the patient's arm tilting upward is flexibly adjusted according to the different rehabilitation stages of the patient, greatly improving the accuracy and reliability of the shoulder joint postoperative rehabilitation training.

[0027] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A postoperative elastic relaxation traction device for shoulder joint guided by a healthy hand, comprising a base plate (1) and a connecting plate (2) fixedly connected to the top of the base plate (1), characterized in that: The top of the connecting plate (2) away from the bottom plate (1) is fixedly connected to a top frame (3). The bottom of the top frame (3) is provided with a bottom groove (301). A spacing adjustment unit (4) is provided inside the bottom groove (301). A reset unit is provided on both sides of the spacing adjustment unit (4). A height adjustment unit (5) is provided on the top of each reset unit. An angle adjustment unit (9) is provided between each height adjustment unit (5) and the spacing adjustment unit (4). A constraint unit (10) is provided on the outside of the connecting plate (2). The reset unit includes a telescopic rod (6), a tension spring (7) sleeved on the outside of the telescopic rod (6), and a pull block (8) fixedly connected to the bottom of the telescopic rod (6) and the tension spring (7). The spacing adjustment unit (4) is used to adjust the spacing between the two reset units, the height adjustment unit (5) is used to adjust the height of the corresponding reset unit relative to the base plate (1), the angle adjustment unit (9) is used to adjust the tilt angle of the corresponding reset unit, and the constraint unit (10) is used to constrain and fix the patient.

2. The postoperative elastic relaxation traction device for shoulder joint guided by healthy hand as described in claim 1, characterized in that: The spacing adjustment unit (4) includes a double-threaded rod (401) and two sets of guide rods (403) disposed inside the bottom groove (301). One end of the double-threaded rod (401) is rotatably connected to the inner wall of the top frame (3). A stepper motor (402) is fixedly installed on the outer side of the top frame (3). The output end of the stepper motor (402) extends into the bottom groove (301) and is fixedly connected to the other end of the double-threaded rod (401). The two sets of guide rods (403) are symmetrically distributed on opposite sides of the double-threaded rod (401). Both ends of the two sets of guide rods (403) are fixedly connected to the inner wall of the top frame (3).

3. The postoperative elastic relaxation traction device for shoulder joint guided by healthy hand as described in claim 2, characterized in that: Both ends of the double-threaded rod (401) are threaded with movable blocks (404). The movable blocks (404) slide on the outside of the two sets of guide rods (403). The front side of the top frame (3) is provided with two sets of dovetail grooves (303). Dovetail blocks (406) are slidably connected inside the two sets of dovetail grooves (303). The bottom groove (301) communicates with the dovetail grooves (303) through the connecting groove (302). The movable blocks (404) are fixedly connected to the dovetail blocks (406) through the connecting block (405).

4. The postoperative elastic relaxation traction device for shoulder joint guided by healthy hand as described in claim 1, characterized in that: The height adjustment unit (5) includes a cavity cylinder (501) fixedly connected to the bottom of the movable block (404) and having an open bottom structure. A semi-lifting column (502) is slidably connected inside the cavity cylinder (501). A rectangular toothed plate (503) is fixedly connected to the outside of the semi-lifting column (502). A mounting plate (504) is fixedly connected to the outside of the cavity cylinder (501). A stepper motor (505) is fixedly mounted on the outside of the mounting plate (504).

5. The postoperative elastic relaxation traction device for shoulder joint guided by healthy hand as described in claim 4, characterized in that: The output end of the second stepper motor (505) passes through the mounting plate (504) and is fixedly connected to the first gear (506). The outer side of the cavity cylinder (501) is provided with a slot (507). The first gear (506) is meshed with the rectangular toothed plate (503) through the slot (507). The bottom of the semi-lifting column (502) is fixedly connected to a baffle (508). The diameter of the baffle (508) is larger than the outer diameter of the cavity cylinder (501). The tops of the telescopic rod (6) and the tension spring (7) are both fixedly connected to the baffle (508).

6. The postoperative elastic relaxation traction device for shoulder joint guided by healthy hand as described in claim 1, characterized in that: The angle adjustment unit (9) includes a follower plate (901) fixedly connected to the dovetail block (406). A stepper motor (902) is fixedly installed on the outer side of the follower plate (901). The output end of the stepper motor (902) passes through the follower plate (901) and is fixedly connected to a gear (903). A gear (904) is meshed on the outer side of the gear (903). A rotating rod (905) is fixedly connected to the middle of the gear (904). One end of the rotating rod (905) is fixedly connected to the outer side of the cavity cylinder (501), and the other end of the rotating rod (905) is rotatably connected to the follower plate (901) through a bearing.

7. The postoperative elastic relaxation traction device for shoulder joint guided by healthy hand as described in claim 1, characterized in that: The bottom four corners of the base plate (1) are provided with self-locking wheels (101), and the outer side of the base plate (1) is provided with steps (102) that slope towards the ground.

8. The postoperative elastic relaxation traction device for shoulder joint guided by healthy hand as described in claim 1, characterized in that: The pull block (8) is provided with handles on both sides.

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