Forearm supporting device
By designing an adjustable forearm support device, the problem of adjusting the range of motion of the support device for different patients with different disease severity was solved, enabling personalized rehabilitation training for patients, promoting the functional recovery of the shoulder and elbow joints, and reducing soft tissue damage during rehabilitation training.
Patent Information
- Application Number
- CN202423124398.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing forearm supports are difficult to adjust in terms of range of motion according to the severity of different patients' conditions, which limits their use.
A forearm support device was designed, which includes an adjustment device and a limiting device. Through components such as a rotating shaft, a coil spring, a magnetic plate, and a locking block, the angle of the support plate can be adjusted and fixed to meet the rehabilitation training needs of different patients.
It allows for adjustment of the support plate angle according to the patient's needs, preventing shoulder subluxation, promoting muscle strength recovery, reducing soft tissue stress damage, improving elbow joint range of motion, inhibiting muscle and joint contractures, providing multi-angle isometric muscle strength training, and promoting limb function recovery.
Smart Images

Figure CN223641257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forearm support technology, and in particular to a forearm support. Background Technology
[0002] A forearm support device is a device used to support the forearm of a patient, and it is generally used for rehabilitation training of hemiplegic patients.
[0003] Existing technologies, such as the utility model with publication number CN201061593Y, specifically disclose a forearm support frame. It has a clip that can be clamped to the edge of a hospital bed. A vertical support rod is fixed to the clip, and a collar that can move up and down along the support rod and is positioned by a set screw is provided on the vertical support rod. Another collar perpendicular to the first collar is fixed to the second collar, and a horizontal support rod is fitted inside the second collar and fixed by a set screw. The aforementioned horizontal support rod has an arm rest corresponding to the forearm. This utility model has a novel design, reasonable structure, and is convenient and simple to use. It can ensure reliable support for the affected forearm, making the patient more comfortable, and also keeping the bed surface clean and aesthetically pleasing.
[0004] The above technical solution has the following drawbacks: When performing upper limb forearm rehabilitation training for different patients, it is not easy to adjust the range of motion of the support device because the severity of the condition varies from patient to patient, which leads to certain limitations when using it for different patients. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies where, due to the varying degrees of illness among patients, it is difficult to adjust the range of motion of the support device during upper limb and forearm rehabilitation training, thus limiting its application to different patients. Therefore, this invention proposes a forearm support device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a forearm support, comprising a base plate, side plates fixedly connected to both sides of the base plate, an adjustment device provided on the upper surface of the base plate, the adjustment device comprising two fixing blocks, both fixing blocks being fixedly connected to the base plate, a rotating shaft rotatably connected inside the two fixing blocks, two connecting blocks fixedly connected to the arc surface of the rotating shaft, a rectangular plate fixedly connected to the upper surface of the two connecting blocks, a support plate fixedly connected to the upper surface of the rectangular plate, a support plate rotatably connected to the lower surface of the rectangular plate, a locking block fixedly connected to one end of the support plate, and a plurality of locking holes provided on the upper surface of the base plate, the locking blocks being slidably connected to the locking holes of the base plate.
[0007] The aforementioned components achieve the effect of adjusting the angle of the support board according to the range of exercise required by the patient's upper limbs.
[0008] Preferably, a circular plate is fixedly connected to the arc surface of the rotating shaft, and coil springs are sleeved at both ends of the rotating shaft. The two ends of the coil springs are fixedly connected to the circular plate and the connecting block, respectively.
[0009] The effect achieved by the above components is that the rotation angle of the pallet can be easily adjusted by using the torsional force of the coil spring.
[0010] Preferably, a sponge pad is fixedly connected to the inner side of the tray, and the sponge pad is specifically a D-type sponge.
[0011] The aforementioned components achieve the effect of protecting the patient's upper limbs, thereby preventing pressure sores from developing on the patient's upper limbs.
[0012] Preferably, a magnetic sheet is fixedly connected to the lower surface of the rectangular plate, and an iron sheet is installed on the support plate at the position corresponding to the magnetic sheet.
[0013] The effect achieved by the above components is that, after the support plate is retracted, it can be attracted and stored by the magnetic force of the magnetic sheet.
[0014] Preferably, one end of the card block is fixedly connected to a positioning block, specifically a triangular block, which is located in a card hole in the base plate.
[0015] The effect achieved by the above components is to further improve the engagement stability between the card block and the card hole.
[0016] Preferably, the side plate is provided with a limiting device, the limiting device including a screw, the screw being threadedly connected to the side plate, a positioning plate being fixedly connected to one end of the screw, a retaining ring being rotatably connected to the outer arc of the positioning plate, a pressure plate being fixedly connected to the side of the retaining ring away from the screw, a limiting rod being fixedly connected to the side of the pressure plate close to the screw, and two limiting strips being fixedly connected to the arc surface of the limiting rod, the limiting rod and the limiting strips slidingly penetrating the side plate.
[0017] The aforementioned components achieve the following effect: the position of the pressure plate can be adjusted according to the specific installation environment, and the side plates and bottom plates can be fixed to wheelchair armrests, seat armrests and other equipment with the help of the pressure plate.
[0018] Preferably, an anti-slip pad is fixedly connected to the side of the pressure plate away from the screw, and the anti-slip pad is uniformly provided with anti-slip texture on the side away from the pressure plate.
[0019] The effect achieved by the above components is to improve the surface roughness of the pressure plate and increase the fixing strength of the pressure plate.
[0020] In summary, the beneficial effects of this utility model are as follows:
[0021] In this invention, by operating the adjustment device, the forearm support can effectively prevent complications such as shoulder subluxation in the early stages of hemiplegia. For patients who have already developed shoulder subluxation, continuous use of the support can significantly shorten the vertical distance (i.e., the distance between the intersection point and the lower edge of the acromion) and the horizontal distance (i.e., the distance between the intersection point and the center of the humeral head) of the glenohumeral joint. This device plays a positive role in preventing and controlling shoulder dysfunction after hemiplegia and relieving shoulder pain. At the same time, early intervention in muscle strengthening training is equally important. The forearm support can utilize multi-angle isometric muscle strengthening training to help the patient's movement trajectory avoid the "pain arc," thus promoting muscle strength recovery in the affected limb through active movement in the early stages of rehabilitation. Combined with correct limb positioning, it helps to better protect soft tissues, reduce stress injuries, and lay a good foundation for subsequent rehabilitation training. Furthermore, the use of the support can also improve the range of motion of the elbow joint, limit abnormal tension in the wrist flexor muscles, further inhibit muscle and joint contractures, and help patients maintain better limb function. Attached Figure Description
[0022] Appendix Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0023] Appendix Figure 2 This is a utility model Figure 1 Enlarged view of point A;
[0024] Appendix Figure 3 This is a utility model Figure 1 The structural diagram below;
[0025] Appendix Figure 4 This is a schematic diagram of the limiting device of this utility model;
[0026] Appendix Figure 5 This is a partial structural schematic diagram of the adjusting device of this utility model.
[0027] The following are the labels in the attached diagram: 1. Base plate; 2. Side plate; 3. Adjustment device; 301. Fixing block; 302. Rotating shaft; 303. Connecting block; 304. Rectangular plate; 305. Support plate; 306. Support plate; 307. Locking hole; 308. Locking block; 309. Round plate; 310. Coil spring; 311. Sponge pad; 312. Magnetic sheet; 313. Positioning block; 4. Limiting device; 41. Screw; 42. Positioning plate; 43. Snap ring; 44. Pressure plate; 45. Anti-slip pad; 46. Limiting rod; 47. Limiting strip. Detailed Implementation
[0028] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.
[0029] Reference Figure 1 As shown, this utility model provides a technical solution: a forearm support, including a base plate 1, side plates 2 fixedly connected to both sides of the base plate 1, an adjustment device 3 provided on the upper surface of the base plate 1, and a limiting device 4 provided on the surface of the side plates 2.
[0030] The specific settings and functions of the adjustment device 3 and the limit device 4 will be explained in detail below.
[0031] Reference Figure 2 , Figure 3 and Figure 5 As shown in this embodiment: the adjusting device 3 includes two fixed blocks 301, both of which are fixedly connected to the base plate 1. A rotating shaft 302 is rotatably connected inside each of the two fixed blocks 301. Two connecting blocks 303 are fixedly connected to the arc surface of the rotating shaft 302. A rectangular plate 304 is fixedly connected to the upper surface of the two connecting blocks 303. A support plate 305 is fixedly connected to the upper surface of the rectangular plate 304. A support plate 306 is rotatably connected to the lower surface of the rectangular plate 304. A locking block 308 is fixedly connected to one end of the support plate 306. Several locking holes 307 are provided on the upper surface of the base plate 1, and the locking blocks 308 are slidably connected to the locking holes 307 of the base plate 1. This achieves the effect of adjusting the angle of the support plate 305 according to the range of exercise required by the patient's upper limb. A circular plate 309 is fixedly connected to the arc surface of the rotating shaft 302. Coil springs 310 are sleeved at both ends of the rotating shaft 302, and the two ends of the coil springs 310 are fixedly connected to the circular plate 309 and the connecting blocks 303, respectively. The system allows for easy adjustment of the rotation angle of the support plate 305 using the torsional force of the coil spring 310. A sponge pad 311, specifically 45D sponge, is fixedly connected to the inner side of the support plate 305. This provides protection for the patient's upper limbs, preventing pressure sores. A magnetic sheet 312 is fixedly connected to the lower surface of the rectangular plate 304, and an iron sheet is installed on the support plate 306 corresponding to the position of the magnetic sheet 312. This allows the support plate 306 to be magnetically attracted and stored after being retracted. A positioning block 313, specifically a triangular block, is fixedly connected to one end of the locking block 308, located in the locking hole 307 of the base plate 1. This further improves the stability of the engagement between the locking block 308 and the locking hole 307.
[0032] Reference Figure 4As shown in this embodiment: the limiting device 4 includes a screw 41, which is threadedly connected to the side plate 2. A positioning plate 42 is fixedly connected to one end of the screw 41. A retaining ring 43 is rotatably connected to the outer arc of the positioning plate 42. A pressure plate 44 is fixedly connected to the side of the retaining ring 43 away from the screw 41. A limiting rod 46 is fixedly connected to the side of the pressure plate 44 near the screw 41. Two limiting strips 47 are fixedly connected to the arc surface of the limiting rod 46. The limiting rod 46 and the limiting strips 47 slide through the side plate 2. This allows the position of the pressure plate 44 to be adjusted according to the specific installation environment, and the side plate 2 and the base plate 1 are fixed to wheelchair armrests, seat armrests, and other equipment using the pressure plate 44. An anti-slip pad 45 is fixedly connected to the side of the pressure plate 44 away from the screw 41. The anti-slip pad 45 has uniformly distributed anti-slip textures on the side away from the pressure plate 44. This improves the surface roughness of the pressure plate 44 and enhances its fixing strength.
[0033] Detailed Instructions for Use: When needed, first attach the base plate 1 to the wheelchair armrest or seat armrest using the side plates 2 at both ends. Then, rotate the screw 41. The screw 41 will cause the positioning plate 42 to rotate within the retaining ring 43. The screw 41 will then move the pressure plate 44 via the thread. The movement of the pressure plate 44 will cause the limiting rod 46 to slide within the side plate 2. The limiting rod 46 restricts the movement of the pressure plate 44. At this point, the pressure plate 44 can be used to fix the side plate 2 to the armrest. Then, rotate the rectangular plate 304. The rectangular plate 304 will then cause the connecting plate to rotate on the rotating shaft 302. When the coil spring 310 starts to twist, it pulls the support plate 306, causing the support plate 306 to drive the locking block 308 and the positioning block 313 to lock in the locking hole 307 of the base plate 1, thus achieving the effect of adjusting the rotation angle of the rectangular plate 304. At this time, the patient can place the upper limb forearm on the sponge pad 311 of the support plate 305. The patient can use the support plate 305 to support the upper limb and then train the forearm. Depending on the training intensity and the patient, the locking block 308 and the positioning block 313 can be locked in different locking holes 307 of the base plate 1 to adjust the angle of the support plate 305.
[0034] After use, the card block 308 and the positioning block 313 can be removed from the card hole 307 of the base plate 1. Then, the support plate 306 is rotated to be parallel to the rectangular plate 304. At this time, the magnetic sheet 312 will attract the patch on the support plate 306, and the coil spring 310 will give the connecting block 303 a torsional force, so that the rectangular plate 304 rotates back to its original position, thereby achieving the effect of folding and storage.
Claims
1. A forearm support device, comprising a base plate (1), characterized in that: Side plates (2) are fixedly connected to both sides of the base plate (1). An adjustment device (3) is provided on the upper surface of the base plate (1). The adjustment device (3) includes two fixing blocks (301). The two fixing blocks (301) are fixedly connected to the base plate (1). A rotating shaft (302) is rotatably connected inside the two fixing blocks (301). Two connecting blocks (303) are fixedly connected to the arc surface of the rotating shaft (302). A rectangular plate (304) is fixedly connected to the upper surface of the 03), a support plate (305) is fixedly connected to the upper surface of the rectangular plate (304), a support plate (306) is rotatably connected to the lower surface of the rectangular plate (304), a locking block (308) is fixedly connected to one end of the support plate (306), and a plurality of locking holes (307) are opened on the upper surface of the bottom plate (1), and the locking block (308) is slidably connected to the locking holes (307) of the bottom plate (1).
2. The forearm support device according to claim 1, characterized in that: A circular plate (309) is fixedly connected to the arc surface of the rotating shaft (302). Both ends of the rotating shaft (302) are fitted with coil springs (310), and the two ends of the coil springs (310) are fixedly connected to the circular plate (309) and the connecting block (303) respectively.
3. A forearm support device according to claim 1, characterized in that: A sponge pad (311) is fixedly connected to the inner side of the tray (305), and the sponge pad (311) is specifically 45D sponge.
4. A forearm support device according to claim 1, characterized in that: A magnetic sheet (312) is fixedly connected to the lower surface of the rectangular plate (304), and an iron sheet is installed on the support plate (306) at the position corresponding to the magnetic sheet (312).
5. A forearm support device according to claim 1, characterized in that: One end of the card block (308) is fixedly connected to a positioning block (313), which is specifically a triangular block and is located in the card hole (307) of the base plate (1).
6. A forearm support device according to claim 1, characterized in that: The side plate (2) is provided with a limiting device (4). The limiting device (4) includes a screw (41). The screw (41) is threadedly connected to the side plate (2). One end of the screw (41) is fixedly connected to a positioning plate (42). A retaining ring (43) is rotatably connected to the outer arc of the positioning plate (42). A pressure plate (44) is fixedly connected to the side of the retaining ring (43) away from the screw (41). A limiting rod (46) is fixedly connected to the side of the pressure plate (44) close to the screw (41). Two limiting strips (47) are fixedly connected to the arc surface of the limiting rod (46). The limiting rod (46) and the limiting strips (47) slide through the side plate (2).
7. A forearm support device according to claim 6, characterized in that: An anti-slip pad (45) is fixedly connected to the side of the pressure plate (44) away from the screw (41), and the anti-slip pad (45) is uniformly provided with anti-slip texture on the side away from the pressure plate (44).
Citation Information
Patent Citations
Forearm bracing frame
CN201061593Y