Upper limb rehabilitation training device

Abstract

The upper limb rehabilitation training device comprises a guiding assembly and a resistance adjusting assembly, the resistance adjusting assembly comprises a hollow adjusting grip, an adjusting rod movably penetrating into the adjusting grip is arranged at the right end of the adjusting grip, and a plurality of resistance adjusting clamping grooves are formed in the outer wall of the adjusting rod; a pressing rod is arranged at the left end of the adjusting rod, a pressing piece is arranged on the outer wall of the left side of the pressing rod, and a spring sleeves the pressing rod between the pressing piece and the adjusting rod; the left end of the pressing rod movably extends into the resistance adjusting assembly, and a friction rolling piece is arranged at the left end of the pressing rod and arranged in the guiding assembly. The resistance adjusting assembly further comprises a clamping groove limiting component, the clamping groove limiting component is arranged on the adjusting grip, the clamping groove limiting component comprises an adjusting circular ring, an elastic piece for limiting movement of the adjusting rod is arranged in the adjusting circular ring, and the elastic piece is located in the adjusting grip and located above the adjusting clamping groove. The upper limb rehabilitation training device can apply resistance to upper limb rehabilitation training actions and adjust the resistance.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an upper limb rehabilitation training device. Background Art

[0002] Clinically, due to damage to the central nervous system leading to limb movement disorders, such as limited shoulder joint movement, upper limb rehabilitation training is needed, the purpose of which is to restore the upper limbs to their normal mobility.

[0003] Currently, conventional upper limb rehabilitation training is to use fingers to climb up and down the wall. Finger climbing is mostly completed with the assistance of wall ladders. However, due to nerve damage, the patient's hands may not be able to be extended upward and retracted downward, and during training, the body may also shake with the rehabilitation movements. Therefore, a doctor is needed to assist the patient in training and lift the arms to complete the upper limb rehabilitation training course.

[0004] In the prior art, an upper limb rehabilitation trainer (application number: 202322005606.1) is disclosed, including a fixed plate, on which a plurality of finger position groups distributed vertically are arranged, each finger position group is provided with a fingertip position, and the fingertip position is provided with a raised structure or a recessed structure. The trainer has the effect of guiding the patient to extend the upper limbs and guiding the patient to control the stability of the arm. Since upper limb rehabilitation training is a long-term treatment process, in the middle and late stages of treatment, after the patient has adapted to this soothing resistance, continuing to use this training method cannot improve the patient's rehabilitation effect. Therefore, some resistance needs to be applied to increase the training intensity, and the existing trainers do not have the function of applying resistance and adjusting the resistance size. Summary of the invention

[0005] The technical problem to be solved by the present application is to provide an upper limb rehabilitation training device that can apply resistance to upper limb rehabilitation training movements and adjust the resistance.

[0006] In order to solve the above technical problems, this application adopts the following technical solutions:

[0007] The upper limb rehabilitation training device comprises a guide assembly and a resistance adjustment assembly, wherein the resistance adjustment assembly is arranged on the guide assembly and driven by the guide assembly to slide up and down; the resistance adjustment assembly comprises a hollow adjustment handle, wherein the right end of the adjustment handle is provided with an adjustment rod movably inserted into the inside thereof, and the outer wall of the adjustment rod is provided with a plurality of resistance adjustment slots; a countersunk hole is provided at the left end of the adjustment rod, a pressure rod is movably arranged in the countersunk hole, a pressure sheet is arranged on the left outer wall of the pressure rod, and a spring is arranged between the pressure sheet and the adjustment rod and on the pressure rod; the left end of the pressure rod movably extends into the resistance adjustment assembly, and the left end of the pressure rod is provided with a friction rolling element, which is arranged in the guide assembly;

[0008] The resistance adjustment assembly also includes a slot limiting component, which is arranged on the adjustment handle. The slot limiting component includes an adjustment ring, and an elastic member for limiting the movement of the adjustment rod is provided inside the adjustment ring. The elastic member is located in the adjustment handle and above the adjustment slot.

[0009] Pressing the adjusting rod causes the adjusting rod to squeeze the spring. The spring applies a certain pressure to the pressure plate, causing the pressure plate to drive the pressure rod and the friction roller to move. The friction roller will press against the inner wall of the guide assembly, thereby generating friction and deriving resistance. The more resistance adjustment slots the adjusting piece engages to the right, the greater the pressure on the spring, the greater the friction and the greater the resistance.

[0010] In some embodiments, the guide assembly includes a slide rail and a slide plate, and the slide plate is fixed on the slide rail.

[0011] According to a further development of the above scheme, the adjustment handle is arranged on a slide board, and the slide rail and the adjustment handle are separated by the slide board to prevent the patient's arm from being caught by the gap of the slide rail. At the same time, a soft pad can be added to the slide board to support the patient's arm.

[0012] In order to fix the patient's arms and prevent the patient's trunk from swinging, in some embodiments, the slide board is provided with hand fixing straps and a trunk support pad, and the trunk support pad is arranged below the hand fixing straps.

[0013] In some embodiments, the right end of the resistance adjustment slot is inclined toward the left end, and the end surface of the left end is perpendicular to the axis of the adjustment rod. The resistance adjustment slot can be pushed step by step toward the spring without causing the elastic member to get stuck.

[0014] In order to prevent the pressure rod from rotating, in some embodiments, the pressure rod is in any geometric shape except a circle; the shape of the countersunk hole at the left end of the adjusting rod matches the shape of the pressure rod.

[0015] According to a further development of the above scheme, the pressure rod movably passes through the slide plate and extends into the interior of the slide rail, and the friction rolling element at the left end of the pressure rod contacts the bottom wall of the interior of the slide rail.

[0016] Compared with the prior art, the present application achieves at least the following beneficial effects: the present device can not only fix the patient's torso, but also apply resistance to upper limb rehabilitation training. The spring is squeezed by the adjusting rod on the adjusting handle, so that the spring generates pressure and applies it to the friction roller. The friction roller generates friction by contacting the inner wall of the guide component through the applied pressure. When the patient pushes the adjusting handle upward, he will feel the existence of resistance; continue to press the adjusting rod, and the resistance adjustment slot on the middle right side of the adjusting rod will be engaged with the adjusting piece, so that the adjusting rod compresses the spring to form new resistance. In the middle and late stages of upper limb rehabilitation training, the patient's rehabilitation effect can be improved by applying resistance and adjusting the size of the resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a three-dimensional display diagram of an upper limb rehabilitation training device installed on a wall according to one embodiment of the present application;

[0019] Figure 2 for Figure 1 A three-dimensional display diagram of the upper limb rehabilitation training device of the embodiment;

[0020] Figure 3 This is a front cross-sectional schematic diagram of the upper limb rehabilitation training device of the present application;

[0021] Figure 4 for Figure 3 The local schematic diagram of the A in the middle;

[0022] Figure 5 A three-dimensional exploded view of the adjustment handle of the upper limb rehabilitation training device of the present application;

[0023] Figure 6 for Figure 5 Partial schematic diagram of point B in the middle.

[0024] The numbers in the figure are: 1. wall; 2. guide assembly; 21. slide rail base; 22. slider; 23. slide plate; 3. resistance adjustment assembly; 31. adjustment handle; 311. limit ring groove; 312. arc window; 32. adjustment rod; 321. resistance adjustment groove; 322. flange; 323. limit flange; 33. ring; 34. elastic member; 341. groove plate; 342. pin; 343. pressure block; 344. second spring; 35. spring; 36. pressure rod; 361. pressure sheet; 37. friction rolling member; 4. wrist strap; 5. arm strap; 6. trunk support pad; 7. auxiliary handle; 8. auxiliary platform. DETAILED DESCRIPTION

[0025] The present application will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided here to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0026] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.

[0027] The defect that the resistance of the upper limb rehabilitation training action cannot be applied and the resistance cannot be adjusted in the prior art. After careful analysis, the inventor found that the main reason for the above problem is that the existing upper limb rehabilitation trainer can generally realize the action of climbing the wall for the patient's fingers, but because the upper limb rehabilitation training belongs to a long-term treatment and rehabilitation process, the shoulder joint muscles can be strengthened by soothing training methods in the early stage, but after a certain period of training, the muscles have adapted to the soothing training methods. If you still want to strengthen the training effect of upper limb rehabilitation, you may need to extend the training time. However, extending the training time may cause joint strain. Therefore, from the perspective of strengthening muscles, it is advisable to increase resistance to carry out resistance training, and increase different resistances at different stages, so as to strive for the next exercise to be better than the last time. The existing trainer does not have the function of applying resistance and adjusting the resistance. Based on the above analysis, the inventor has made structural improvements to the upper limb rehabilitation trainer.

[0028] like Figure 1-6 As shown, in at least one embodiment of the upper limb rehabilitation training device of the present application, it includes a guide component 2 and a resistance adjustment component 3 arranged on a wall 1 in the room, the resistance adjustment component 3 is arranged on the guide component 2, and the resistance adjustment component 3 is driven by the guide component 2 to slide up and down; the resistance adjustment component 3 includes a hollow cylindrical adjustment handle 31, the outer surface of the adjustment handle 31 can be provided with anti-slip knurling, the right end of the adjustment handle 31 is provided with a through hole, the through hole is provided with a cylindrical adjustment rod 32 that can be movably inserted into the interior of the adjustment handle 31, and the outer wall of the adjustment rod 32 located inside the adjustment handle 31 is provided with a plurality of resistance adjustment slots; as shown Figure 4As shown, a countersunk hole is provided at the left end of the adjusting rod 32, and a retractable and movable pressure rod 36 is provided in the countersunk hole. A disc-shaped pressure piece 361 is provided on the left outer wall of the pressure rod 36, and the pressure piece 361 is located in the adjusting grip 31. A spring 35 is provided between the pressure piece 361 and the adjusting rod 32 and on the pressure rod 36; the left end of the pressure rod 36 movably extends into the resistance adjusting assembly 3, and a friction rolling piece 37 is provided at the left end of the pressure rod 36, and the friction rolling piece 37 is arranged in the guide assembly 2; the left end of the adjusting rod 32 moves to the left to press the spring 35, and the spring 35 generates pressure to squeeze the pressure piece 361 on the pressure rod 36 to the left, so that the pressure piece 361 drives the pressure rod 36 and the friction rolling piece 37 at its left end to move to the left, and the friction rolling piece 37 contacts the inside of the guide assembly 2 to generate friction. Although the friction rolling piece 37 is under the pressure of the spring 35, it can still roll. When the patient holds the adjusting grip 31 and pushes it upward, he can feel the resistance;

[0029] The resistance adjustment assembly 3 also includes a slot limiting component for adjusting the size of the resistance. The slot limiting component is arranged on the adjustment handle 31. The slot limiting component includes an adjustment ring 33. The adjustment ring 33 is provided with an elastic member 34 for limiting the movement of the adjustment rod 32. The elastic member 34 is located in the adjustment handle 31 and above the adjustment slot. When the adjustment rod 32 moves to the left, the elastic member 34 will be stuck in the resistance adjustment slot, limiting the adjustment rod 32 from resetting, so that the resistance is kept at a fixed value.

[0030] In this embodiment, the guide assembly 2 is composed of a steel ball type slide rail and a rectangular plate-shaped slide plate 23, and the slide plate 23 is fixed to the slide rail by screws. Among them, the slide rail base 21 of the slide rail is fixed to the wall 1 by screws, and the slider 22 on the slide rail base 21 is connected to the slide plate 23.

[0031] The adjustment handle 31 is installed on the slide plate 23 by screws. Since the slide block 22 of the slide rail is narrow and has holes of different shapes on the surface for connecting with other objects, the slide plate 23 is used to separate the slide rail and the adjustment handle 31, which can prevent the patient's arm from being caught by the gap between the slide rail base 21 and the slide block 22 of the slide rail and being scratched by the edge of the through hole on the surface of the slide block 22, thereby preventing the patient from being injured. A soft pad can also be added to the surface of the slide plate 23 to support the patient's arm.

[0032] like Figure 2As shown, the slide plate 23 is connected with a hand fixing strap and a trunk support pad 6, and the trunk support pad 6 is arranged below the hand fixing strap. The hand fixing strap is further divided into a wrist strap 4 and an arm strap 5, wherein the wrist strap 4 is used to fix the patient's wrist, and the arm strap 5 is used to fix the patient's forearm. The function of the hand fixing strap is to fix the patient's arm, so that the arm can be in a reasonable motion trajectory when the patient pushes up and pulls down; the trunk support pad 6 is an arc-shaped pad, and its top and bottom can be set to a plane or an inclined plane. If it is set to an inclined plane, the angle can be 45°, 60°, 75° or other angles. The purpose of setting the cushion is that when the patient's hand is pushed up, the trunk may shake or swing toward the wall 1, and the cushion can support the patient's trunk or arm. Among them, the trunk support pad 6 should preferably adopt an angled shape, which can better match the armpit, and can both support and prevent the edge of the trunk support pad 6 from hitting the patient's armpit or arm position.

[0033] refer to Figure 4 and Figure 5 The right end of the resistance adjustment slot is inclined toward the left end, and the terminal surface of the left end is perpendicular to the axis of the adjustment rod 32, so that the resistance adjustment slot forms a slot inclined toward the lower left. When the elastic member 34 is stuck in the first resistance adjustment slot on the left side of the adjustment rod 32, if the spring 35 needs to be further squeezed, the adjustment rod 32 is moved to the left, and the end surface of the resistance adjustment slot 321 inclined toward the left end will squeeze the elastic member 34 to shrink until the next resistance adjustment slot is located below the elastic member 34. The elastic member 34 is not blocked and rebounds to contact the left end surface of the next resistance adjustment slot, limiting the adjustment rod 32 from resetting to the right.

[0034] The left end face of the adjusting rod 32 is provided with a flange 322, which can increase the area of ​​the left end face of the adjusting rod 32 without increasing the diameter of the adjusting rod 32. The flange 322 contacts the right end of the spring 35, and the diameter of the flange 322 is larger than the diameter of the spring 35. In this way, even if the spring 35 swings, the flange 322 can cover the end face of the spring 35. When the adjusting rod 32 moves to the left, the pressure on the spring 35 is relatively uniform.

[0035] The pressure rod 36 is any geometric shape except a circle; the shape of the countersunk hole at the left end of the adjustment rod 32 matches the shape of the pressure rod 36. In this embodiment, the pressure rod 36 is in a square shape, so that the pressure rod 36 can be limited to rotate. The purpose of limiting the rotation of the pressure rod 36 is that the friction rolling element 37 can adopt a universal ball or roller structure, and the contact area of ​​the roller is large. If it is a roller structure, it is necessary to limit the rotation of the roller around the pressure rod 36 as a whole, because the roller rotates around the pressure rod 36, the angle of the wheel body changes, and the adjustment handle 31 may not be able to move up and down along the guide assembly 2.

[0036] The slide plate 23 and the slider 22 of the slide rail are provided with through holes for the pressure rod 36 to pass through. The pressure rod 36 movably passes through the slide plate 23 and extends into the interior of the slide rail. The friction rolling member 37 at the left end of the pressure rod 36 contacts the bottom wall inside the slide rail (i.e., the inner wall of the slide rail base 21).

[0037] refer to Figure 5 A limiting ring groove 311 is provided on the side wall of the middle right side of the adjustment handle 31, and the ring 33 is arranged in the limiting ring groove 311, and is restricted from coming out by the limiting ring groove 311. An arc window 312 is provided on the bottom surface of the limiting ring groove 311, and the elastic member 34 is provided in the arc window 312. The arc of the arc window 312 allows the elastic member 34 to rotate 90°.

[0038] refer to Figure 6 The elastic member 34 includes a groove plate 341 connected to the inner wall of the ring 33, a through hole is provided in the middle of the inner bottom surface of the groove plate 341, a movable pin 342 is provided in the through hole, a circular or square pressing block 343 is provided on the side wall of the pin 342 located inside the groove plate 341, a second spring 344 is provided between the ring 33 and the pressing block 343, and the second spring 344 covers the top of the pin 342 protruding from the top of the pressing block 343. The pressing block 343 not only prevents the pin 342 from falling out, but also transfers the pressure applied by the second spring 344 to the pin 342.

[0039] refer to Figure 1 The upper limb rehabilitation training device also provides a plate-shaped auxiliary platform 8, on which a columnar auxiliary handle 7 is installed. The auxiliary platform 8 is installed on the wall 1 and is located in front of the patient. When the patient performs rehabilitation training, the other hand can hold the auxiliary platform 8 or hold the auxiliary handle 7 to further improve the stability of the trunk.

[0040] In addition, a limiting flange 323 is provided inside the adjustment handle 31, on the adjustment rod 32, and on the right side of the resistance adjustment slot to prevent the spring 35 from pushing the adjustment rod 32 too far to the right, causing the pressure rod 36 to fall out of the countersunk hole at the left end of the adjustment rod 32.

[0041] When the upper limb rehabilitation training device is used, the patient holds the handle, and then the assistant doctor helps to wear the wrist strap 4 and the arm strap 5. At this time, the elbow supports the top of the trunk support pad 6, and the patient's other hand assists the auxiliary platform 8 or holds the auxiliary handle 7 to push up and pull down the arm. After the arm is pushed up, the trunk support pad 6 will support the patient's armpit to prevent the patient's body from swinging against the wall.

[0042] If resistance is required, the assistant physician helps to press the adjustment rod 32 so that the adjustment member is placed in a position such as Figure 4The first resistance adjustment slot on the left side of the adjustment rod 32 in the slide rail 21 is inserted into the first resistance adjustment slot on the left side of the adjustment rod 32. At this time, the left end of the adjustment rod 32 squeezes the spring 35. The pressure generated by the spring 35 squeezes the pressing piece 361 on the pressing rod 36 to the left, so that the pressing piece 361 drives the pressing rod 36 and the friction rolling element 37 to move to the left, so that the friction rolling element 37 is pressed against the inner wall of the slide rail base 21. Since the friction rolling element 37 is a ball or roller structure, even if pressure is applied and the inner wall of the slide rail base 21 is contacted, the friction rolling element 37 can still roll up and down. When using it, the patient can clearly feel that the rehabilitation action of pushing up and pulling down generates resistance. At the same time, the pin shaft 342 of the elastic member 34 of the slot limiting component squeezes the pressing block 343 through the second spring 344, so that the pin shaft 342 is placed in the aforementioned resistance adjustment slot. The left end face of the resistance adjustment slot contacts the pin shaft 342, limiting the adjustment rod 32 from rebounding to the right.

[0043] Continue to press the adjustment rod 32, and the first resistance adjustment slot on the left side of the adjustment rod 32 moves to the left. The inclined surface thereof will squeeze the lifting pin 342 until the second resistance adjustment slot is located below the pin 342. The pin 342 is not blocked, and the pressure block 343 is squeezed by the elastic force of the second spring 344 to place the pin 342 in the second resistance adjustment slot 321. At this time, the spring 35 is further compressed, and the friction rolling element 37 is pressed against the inner wall of the slide rail base 21 for a more solid contact, thereby increasing the friction force and the resistance.

[0044] After use, when the adjustment rod 32 needs to be restored, since the arc window 312 on the adjustment handle 31 has an arc angle that allows the elastic member 34 to rotate 90°, the ring 33 is rotated in the direction for the elastic member 34 to rotate 90°, and the surface of the adjustment rod 32 changes (i.e., from the resistance adjustment slot to the arc surface), and the pin 342 shrinks accordingly. After the next circle contacts the arc surface of the adjustment rod 32, there is no limit on the left end face of the resistance adjustment slot, and the spring 35 pushes the adjustment rod 32 to the right, and the resistance of the friction rolling member 37 and the slide rail base 21 is released. If resistance needs to be reapplied, the ring 33 is rotated in the opposite direction so that the elastic member 34 is located above the adjustment rod 32 and can be placed in the resistance adjustment slot as required.

[0045] It should be understood that all the above embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above based on the concept of the present application should all be within the protection scope of the present application.

Claims

1. An upper limb rehabilitation training device, characterized in that: It includes a guide component and a resistance adjustment component, wherein the resistance adjustment component is arranged on the guide component, and the guide component drives the resistance adjustment component to slide up and down; The resistance adjustment component comprises a hollow adjustment handle, the right end of which is provided with an adjustment rod movably inserted into the inside thereof, and the outer wall of the adjustment rod is provided with a plurality of resistance adjustment slots; the left end of the adjustment rod is provided with a countersunk hole, a pressure rod is movably provided in the countersunk hole, a pressure sheet is provided on the left outer wall of the pressure rod, and a spring is provided between the pressure sheet and the adjustment rod and on the pressure rod; the left end of the pressure rod movably extends into the resistance adjustment component, the left end of the pressure rod is provided with a friction rolling element, and the friction rolling element is provided in the guide component; The resistance adjustment assembly also includes a slot limiting component, which is arranged on the adjustment handle. The slot limiting component includes an adjustment ring, and an elastic member for limiting the movement of the adjustment rod is provided inside the adjustment ring. The elastic member is located in the adjustment handle and above the adjustment slot.

2. The device according to claim 1, characterized in that: The guide assembly comprises a slide rail and a slide plate, wherein the slide plate is fixed on the slide rail.

3. The device according to claim 2, characterized in that: The adjusting handle is arranged on the slide plate.

4. The device according to claim 3, characterized in that: The slide board is provided with a hand fixing strap and a trunk supporting pad, and the trunk supporting pad is arranged below the hand fixing strap.

5. The device according to claim 1, characterized in that: The right end of the resistance adjustment slot is inclined toward the left end, and the terminal surface of the left end is perpendicular to the axis of the adjustment rod.

6. The device according to claim 1, characterized in that: The left end surface of the adjusting rod is provided with a flange, and the flange is in contact with the right end of the spring.

7. The device according to claim 1, characterized in that: The pressure rod is in any geometric shape except a circle; the shape of the countersunk hole at the left end of the adjusting rod matches the shape of the pressure rod.

8. The device according to claim 7, characterized in that: The pressure rod movably passes through the slide plate and extends into the interior of the slide rail, and the friction rolling element at the left end of the pressure rod contacts the bottom wall of the interior of the slide rail.

9. The device according to claim 1, characterized in that: A limiting ring groove is provided on the side wall of the adjusting handle, the circular ring is arranged in the limiting ring groove, an arc-shaped window is provided in the limiting ring groove, and the elastic member is arranged in the arc-shaped window.

10. The device according to claim 9, characterized in that: The elastic member comprises a groove plate connected to the inner wall of the ring, the middle part of the groove plate is movably arranged on the pin shaft, a pressure block is arranged on the side wall of the inner part of the groove plate, and a second spring is arranged between the ring and the pressure block.

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