A hand rehabilitation exerciser for patients with cerebral infarction

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, specifically relates to a cerebral infarction patient hand rehabilitation exerciser, relates to the field of medical apparatus and instruments, aims at solving the problem of traditional "rolling cylinder propulsion" training method height adjustment is complicated, and the rolling cylinder is easy to escape, the exerciser includes lifting table, rolling cylinder and enclosure frame: lifting table can pass through the rocker drive screw rod and adjust the table height, is suitable for different patients of different body shapes, need not adjust the patient position, the rolling cylinder adopts flexible light material, is convenient for fetching and is suitable for hand training, the enclosure frame is located on the table board, can both restrict the rolling cylinder and avoid escaping, and can be disassembled and clean, and the inclined guide surface of the blocking piece cooperates with the medical staff and pushes, can let the patient carry out reaction training. When using, the patient can independently or under the assistance complete basic rolling training to reduce finger spasm, promote the degree of extension, also can enhance the hand coordination ability through reaction training. The device is convenient to operate, can provide safe and efficient hand rehabilitation solution for the cerebral infarction hemiplegic patient.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a hand rehabilitation exercise device for patients with cerebral infarction. Background Technology

[0002] Following cerebral infarction or cerebral hemorrhage, hemiplegic patients often experience finger flexion contractures and difficulty in extension. In clinical rehabilitation, the "roller propulsion" training method is frequently used to induce finger extension on the affected side. This training method requires the patient to sit with the palm of the affected hand facing down on the surface of a roller. The therapist assists by stabilizing the elbow and wrist, and the patient uses their forearm strength to push the roller forward. This rolling friction passively induces excitation of the finger extensor muscles, thereby reducing spasticity and increasing finger extension range of motion.

[0003] However, the existing "roller propulsion" training method has obvious drawbacks: First, the roller height is fixed. To accommodate the different body sizes of different patients, the relative height needs to be adjusted by raising the patient's chair or adding pads under the chair legs. However, hemiplegic patients have difficulty moving, and the posture adjustment process is cumbersome and time-consuming. Moreover, the unstable sitting posture can easily lead to shoulder and trunk compensation, which not only affects the training effect but may also bring the risk of secondary injury. Second, the roller lacks axial and front-back limits when rolling on the table, making it very easy for it to slip off the table or roll off the table. Therefore, the therapist must hold it steady throughout the process, which is both labor-intensive and interrupts the continuity of training. This is not conducive to its promotion in ward-home settings and cannot meet the needs of patients for independent training.

[0004] To address the aforementioned issues, this invention proposes a hand rehabilitation exercise device for stroke patients, which enables highly convenient adjustment, effectively limits the movement of the rollers, and enhances training safety and autonomy.

[0005] The methods described in this section are not necessarily methods that had been previously conceived or adopted. Unless otherwise specified, no method described in this section should be assumed to be prior art simply because it is included in this section. Similarly, unless otherwise specified, the issues mentioned in this section should not be considered to be accepted in any prior art. Utility Model Content

[0006] The purpose of this invention is to provide a hand rehabilitation exercise device for stroke patients, which solves the problems of cumbersome roller height adjustment, easy roller slippage, and the need for special care in the existing "roller propulsion" training method. It adapts to the differences in body size of different patients, ensures the continuity and safety of training, facilitates patients' self-training, and can be promoted in multiple scenarios.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A hand rehabilitation exercise device for stroke patients, comprising: An adjustable desk, the tabletop of which can be raised and lowered to adjust its height; A roller, which is placed on the upper end of the table via a cylindrical surface, is used for hand rehabilitation training for stroke patients; The frame, located at the upper end of the table, is used to constrain the two ends of the roller along the axis, preventing the roller from moving axially, and also to limit the travel distance of the roller as it rolls back and forth.

[0008] Furthermore, the height-adjustable table also includes a base and a lifting assembly, wherein the lifting assembly is disposed between the base and the tabletop and is used to drive the tabletop to rise and fall relative to the base.

[0009] Furthermore, the lifting assembly includes: The lifting frame includes a first arm and a second arm that are hinged together in the middle. The lower end of the first arm is hinged to the front end of the base, the lower end of the second arm is slidably connected to the base, and the upper end of the second arm is hinged to the front end of the table. A lead screw, which is rotatably connected to the front and rear ends of the tabletop; The first slider is threadedly connected to the lead screw through a threaded hole and is also hinged to the upper end of the first support arm. By rotating the lead screw, the first slider is driven to slide back and forth along the lead screw axis, thereby pulling the upper end of the first support arm to move synchronously, so that the hinge angle between the middle of the first support arm and the second support arm changes, thereby driving the table to rise or fall relative to the base.

[0010] Furthermore, the lifting frame has two sets, which are spaced apart from each other on the left and right, and the left and right ends of the first slider are respectively hinged to the upper ends of the two first arms.

[0011] Furthermore, a rocker handle is fixedly connected to the front end of the lead screw.

[0012] Furthermore, the base is a box-shaped structure with an open top, and the hinge point between the first support arm and the base is located inside the base; The base has a sliding groove on its side wall, and the lower end of the second support arm is rotatably connected to a second slider, which is slidably assembled with the sliding groove.

[0013] Furthermore, the tabletop is a box-shaped structure with an opening at the bottom, the hinge point between the second support arm and the tabletop is located inside the tabletop, and the first slider is located inside the tabletop.

[0014] Furthermore, the frame is detachably connected to the tabletop; The lower end of the frame is fixed with multiple bolts, and the tabletop has multiple slots for the bolts to be inserted.

[0015] Furthermore, the side of the frame is provided with multiple lifting grooves.

[0016] Furthermore, the frame includes two side plates arranged symmetrically on the left and right and two front and back symmetrical stops. The two side plates and the two stops are connected to form a rectangle. The inner side of the stops is a guide surface that slopes from the inside out and from bottom to top.

[0017] This utility model has at least the following beneficial effects: The height adjustment is convenient and stable. The table height can be easily adjusted with a joystick, adapting to different body sizes without adjusting the patient's position, thus avoiding body compensation or injury caused by changes in position. The lifting process is stable and also protects internal components and reduces external interference.

[0018] The rollers are easy and comfortable to use, made of flexible and lightweight materials. They provide the necessary rolling friction for training, helping to induce finger extension, and are easy to handle without adding extra burden to the patient's weak hands.

[0019] The frame is practical and comprehensive, preventing the rollers from slipping or deviating, and requires no constant supervision; it can be easily disassembled for cleaning and storage; it can also be used to conduct reaction training, enriching rehabilitation content and improving hand coordination.

[0020] It adapts to training needs in multiple scenarios, supporting patients to conduct basic training independently, as well as advanced training assisted by medical staff. It can be used in scenarios such as wards and homes, helping patients increase the frequency of training and improve rehabilitation efficiency. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of an embodiment of a hand rehabilitation exercise device for stroke patients according to this utility model. Figure 1 ; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the structure of an embodiment of a hand rehabilitation exercise device for stroke patients according to this utility model. Figure 2 ; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the tabletop structure in one embodiment of a hand rehabilitation exercise device for stroke patients according to this utility model; Figure 6 This is a schematic diagram of the frame structure in one embodiment of a hand rehabilitation exercise device for cerebral infarction patients according to the present invention.

[0022] The meanings of the labels in the attached diagram are as follows: 1. Adjustable table, 11. Tabletop, 111. Slot, 12. Base, 121. Slide, 13. Lifting assembly, 131. First support arm, 132. Second support arm, 133. Lead screw, 134. First slider, 135. Rocker handle, 136. Second slider, 2. Roller, 3. Frame, 31. Bolt, 32. Lifting groove, 3a. Side plate, 3b. Stop, 3b1. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Reference Figures 1-6 As shown, this embodiment of a hand rehabilitation exercise device for stroke patients includes a height-adjustable table 1, rollers 2, and a frame 3. The tabletop 11 of the height-adjustable table 1 can be raised and lowered to accommodate different patient sizes. The rollers 2 are placed on the upper end of the tabletop 11 via a cylindrical surface, allowing the patient's hand to contact them for rehabilitation training. The frame 3 is located on the upper end of the tabletop 11, which both constrains the rollers 2 at both ends to prevent axial movement and limits the forward and backward rolling stroke of the rollers 2 to prevent the rollers 2 from rolling off the tabletop.

[0025] In this embodiment, the height-adjustable table 1 further includes a base 12 and a lifting assembly 13. The lifting assembly 13 is disposed between the base 12 and the tabletop 11, and is used to drive the tabletop 11 to rise and fall relative to the base 12. Specifically, the lifting assembly 13 includes a lifting frame, a lead screw 133, and a first slider 134. The lifting frame consists of a first arm 131 and a second arm 132 that are hinged together in the middle. The lower end of the first arm 131 is hinged to the front end of the base 12, and the lower end of the second arm 132 is slidably connected to the base 12. The upper end of 32 is hinged to the front end of the tabletop 11; the lead screw 133 is rotatably connected to the front and rear ends of the tabletop 11; the first slider 134 is threadedly connected to the lead screw 133 through a threaded hole and is hinged to the upper end of the first support arm 131; when the lead screw 133 is rotated, the first slider 134 can be driven to slide back and forth along the axial direction of the lead screw 133, thereby pulling the upper end of the first support arm 131 to move synchronously, so that the hinge angle between the middle of the first support arm 131 and the second support arm 132 changes, and finally realizes the raising or lowering of the tabletop 11 relative to the base 12.

[0026] In this embodiment, there are two lifting frames, which are spaced apart on the left and right. The left and right ends of the first slider 134 are respectively hinged to the upper ends of the two first arms 131 to improve the stability of the table 11 during the lifting process.

[0027] In this embodiment, a rocker handle 135 is fixedly connected to the front end of the lead screw 133, which makes it convenient for the user to drive the lead screw 133 to rotate by turning the rocker handle 135, thus simplifying the height adjustment operation.

[0028] In this embodiment, the base 12 is a box-shaped structure with an open top. The hinge point between the first support arm 131 and the base 12 is located inside the base 12. A sliding groove 121 is provided on the side wall of the base 12. The lower end of the second support arm 132 is rotatably connected to a second slider 136. The second slider 136 is slidably assembled with the sliding groove 121 to ensure that the lower end of the second support arm 132 slides stably back and forth along the base 12.

[0029] In this embodiment, the table 11 is a box-shaped structure with an opening at the bottom. The hinge of the second support arm 132 and the table 11 is located inside the table 11. The first slider 134 is located inside the table 11, which reduces the interference of external structures on training and protects the internal components of the lifting assembly 13.

[0030] In this embodiment, the frame 3 and the table 11 are detachably connected. The lower end of the frame 3 is fixed with a plurality of plugs 31. The table 11 has a plurality of slots 111 for the plugs 31 to be inserted, which facilitates the installation and disassembly of the frame 3 and makes it convenient for the equipment to be stored or cleaned. The side of the frame 3 has a plurality of lifting grooves 32, which make it convenient for the user to hold the lifting grooves 32 to complete the disassembly and assembly of the frame 3.

[0031] In this embodiment, the frame 3 includes two symmetrically arranged side plates 3a and two symmetrically arranged front and back stops 3b, which are connected to form a rectangle. The inner surface of the stop 3b is a guide surface 3b1 that slopes upwards and outwards. When medical staff push the roller 2 back and forth, the roller 2 can slide upwards and outwards along the guide surface 3b1, allowing the patient to catch it at the sliding position, thus simultaneously performing reaction training and enriching the rehabilitation training function. It is worth mentioning that the roller 2 is made of a flexible and lightweight material for easy handling by the user.

[0032] How to use Height adjustment: The patient or assistant turns the rocker handle 135, which drives the lead screw 133 to rotate. When the lead screw 133 rotates, the first slider 134 slides back and forth along the axis of the lead screw 133, pulling the upper end of the first support arm 131 to move, so that the hinge angle between the first support arm 131 and the second support arm 132 changes: when the first slider 134 slides backward, the hinge angle increases and the table 11 rises; when the first slider 134 slides forward, the hinge angle decreases and the table 11 falls, until the table 11 is adjusted to a height suitable for the patient's sitting posture.

[0033] Basic rehabilitation training: The patient sits with the palm of the affected hand facing down on the surface of roller 2. If an assistant is available, the patient's elbow and wrist can be slightly fixed. The patient uses the strength of the forearm to push roller 2 back and forth. Roller 2 rolls stably along table 11 under the restriction of frame 3. The rolling friction passively induces the extensor muscles of the fingers, reduces finger spasms, and increases the range of motion of extension.

[0034] Reaction training: Once the patient is familiar with the basic training, medical staff can push the roller 2 back and forth during assisted training. The pushing force can be adjusted according to the patient's rehabilitation progress, so that the roller 2 slides upward and outward along the guide surface 3b1 of the stop 3b. The patient needs to concentrate and catch the roller 2 in time when it slides out. This process can exercise hand reaction ability and improve the rehabilitation training effect.

[0035] Equipment storage and cleaning: After training, hold the lifting slot 32 on the side of the frame 3 and pull the frame 3 upward (the plug 31 disengages from the slot 111). Then clean the roller 2, frame 3 and lifting table 1 separately. After cleaning, reassemble or store them separately to save storage space.

[0036] In summary, the hand rehabilitation exercise device for stroke patients described in this utility model effectively solves many defects of the traditional "roller propulsion" training method through the coordinated design of the lifting table 1, rollers 2, and frame 3. Specifically, the lifting table 1, relying on the cooperation of double-arm lifting frames, lead screws 133, and rocker handles 135, allows for convenient height adjustment of the tabletop 11, adapting to different body sizes without adjusting the patient's position and avoiding compensatory injuries. The structural design of the box-shaped base 12 and the tabletop 11 ensures stable operation of the lifting assembly 13 while reducing external interference. The rollers 2, made of flexible and lightweight material, meet the friction requirements of rehabilitation training while being easy for patients to safely handle. The frame 3 has both axial and front-rear limiting functions to prevent the rollers 2 from slipping out. Its detachable design with plugs 31, slots 111, and lifting grooves 32 simplifies cleaning and storage. Furthermore, the guide surface 3b1 of the stop 3b, in conjunction with the pushing operation by medical staff, can expand the function to include reaction training, enriching the rehabilitation dimensions. The device has a reasonable structure and is easy to operate. It supports patients' independent training and is also suitable for medical staff to assist in various scenarios. It can be flexibly applied in wards and homes. It can reduce finger spasms and improve extension range of motion through basic training, and enhance hand coordination through reaction training. It comprehensively meets the rehabilitation needs of hemiplegic patients with cerebral infarction at different stages and provides a safe, efficient and practical solution for hand rehabilitation training.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A hand rehabilitation exercise device for patients with cerebral infarction, characterized in that, include: A height-adjustable desk; its tabletop can be raised and lowered to adjust its height. A roller, which is placed on the upper end of the table via a cylindrical surface, is used for hand rehabilitation training for stroke patients; The frame, located at the upper end of the table, is used to constrain the two ends of the roller along the axis, preventing the roller from moving axially, and also to limit the travel distance of the roller as it rolls back and forth.

2. The hand rehabilitation exercise device for patients with cerebral infarction according to claim 1, characterized in that: The height-adjustable desk also includes a base and a lifting assembly. The lifting assembly is located between the base and the tabletop and is used to drive the tabletop to rise and fall relative to the base.

3. The hand rehabilitation exercise device for patients with cerebral infarction according to claim 2, characterized in that: The lifting assembly includes: The lifting frame includes a first arm and a second arm that are hinged together in the middle. The lower end of the first arm is hinged to the front end of the base, the lower end of the second arm is slidably connected to the base, and the upper end of the second arm is hinged to the front end of the table. A lead screw, which is rotatably connected to the front and rear ends of the tabletop; The first slider is threadedly connected to the lead screw through a threaded hole and is also hinged to the upper end of the first support arm. By rotating the lead screw, the first slider is driven to slide back and forth along the lead screw axis, thereby pulling the upper end of the first support arm to move synchronously, so that the hinge angle between the middle of the first support arm and the second support arm changes, thereby driving the table to rise or fall relative to the base.

4. A hand rehabilitation exercise device for patients with cerebral infarction according to claim 3, characterized in that: The lifting frame has two sets, which are spaced apart on the left and right. The left and right ends of the first slider are respectively hinged to the upper ends of the two first arms.

5. A hand rehabilitation exercise device for patients with cerebral infarction according to claim 3, characterized in that: A rocker handle is fixed to the front end of the lead screw.

6. A hand rehabilitation exercise device for patients with cerebral infarction according to claim 3, characterized in that: The base is a box-shaped structure with an open top, and the hinge point between the first support arm and the base is located inside the base. The base has a sliding groove on its side wall, and the lower end of the second support arm is rotatably connected to a second slider, which is slidably assembled with the sliding groove.

7. A hand rehabilitation exercise device for patients with cerebral infarction according to claim 3, characterized in that: The tabletop is a box-shaped structure with an opening at the bottom. The hinge point between the second support arm and the tabletop is located inside the tabletop, and the first slider is located inside the tabletop.

8. A hand rehabilitation exercise device for patients with cerebral infarction according to claim 1, characterized in that: The frame is detachably connected to the tabletop; The lower end of the frame is fixed with multiple bolts, and the tabletop has multiple slots for the bolts to be inserted.

9. A hand rehabilitation exercise device for patients with cerebral infarction according to claim 8, characterized in that: The side of the frame has multiple lifting grooves.

10. A hand rehabilitation exercise device for patients with cerebral infarction according to claim 1, characterized in that: The frame includes two side plates arranged symmetrically on the left and right and two front and back symmetrical stops. The two side plates and the two stops are connected to form a rectangle. The inner side of the stops is a guide surface that slopes from the inside out and from bottom to top.

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