Portable desktop upper limb wrist rehabilitation training device

Abstract

This invention discloses a portable desktop upper limb wrist rehabilitation training device, belonging to the field of upper limb rehabilitation technology. It includes a base, an elbow flexion-extension device, a wrist rotation device, and a wrist swinging device. The wrist rotation device and the elbow flexion-extension device are respectively installed at the front and rear ends of the base, and the wrist swinging device is mounted on the wrist rotation device. The elbow flexion-extension device drives elbow flexion and extension, causing the wrist to swing up and down for training; the wrist rotation device drives wrist rotation for training; and the wrist swinging device drives wrist left and right swinging for training. This invention has a simple structure, is easy to wear, and can be placed on a table to provide three degrees of freedom rehabilitation training for the wrists of patients with different degrees of paralysis.

Description

Technical Field

[0001] This invention belongs to the field of upper limb rehabilitation technology, and particularly relates to a convenient desktop upper limb wrist rehabilitation training device. Background Technology

[0002] The wrist is a highly vulnerable part of the human body, and many diseases can lead to upper limb movement disorders. Common examples include cardiovascular and cerebrovascular diseases and hemiplegia in the elderly. Prolonged immobilization of the upper limb can result in lifelong paralysis of its physiological functions. In such cases, devices that can actively guide upper limb rehabilitation training are particularly important. Most current upper limb rehabilitation devices are active designs, requiring patients to wear them and train independently, which significantly reduces their application scenarios. For example, Chinese patent (CN215781316U) discloses a wrist rehabilitation device that uses a spring to train upper limb strength. This is not suitable for patients with severe paralysis, and the device's weight can place unnecessary strain on the user, potentially causing secondary injury. There is an urgent need for those skilled in the art to propose a wrist training device that is easy to wear, adaptable to different degrees of paralysis, and capable of achieving three degrees of freedom. Summary of the Invention

[0003] In view of this, the present invention provides a convenient desktop upper limb wrist rehabilitation training device to solve the above problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A portable desktop upper limb wrist rehabilitation training device includes: a base, an elbow flexion and extension device, a wrist rotation device, and a wrist swing device. The wrist rotation device and the elbow flexion and extension device are respectively installed at the front and rear ends of the base, and the wrist swing device is installed on the wrist rotation device. The elbow flexion and extension device drives the elbow to flex and extend, causing the wrist to swing up and down for training. The wrist rotation device drives the wrist to rotate for training, and the wrist swing device drives the wrist to swing left and right for training.

[0006] Furthermore, the elbow flexion and extension device includes a first motor mounting bracket, a first motor, a connecting rod, a fixing bolt, and a first bandage. The first motor mounting bracket is installed at the rear end of the base, the first motor is horizontally arranged on the first motor mounting bracket and perpendicular to the human upper limb, one end of the connecting rod is fixedly installed at the output end of the first motor, and the fixing bolt fixes the first bandage to the connecting rod.

[0007] Furthermore, the connecting rod is provided with a strip-shaped hole, and the fixing bolt moves on the strip-shaped hole to adjust the fixed position of the first bandage on the connecting rod.

[0008] Furthermore, the wrist rotation device includes a second motor mounting bracket, a second motor, a first gear, a second gear, a gear base, an iron block, and a second bandage. The second motor mounting bracket is installed on one side of the front end of the base. The second motor is horizontally arranged on the second motor mounting bracket and parallel to the human upper limb. The first gear is installed at the output end of the second motor. The gear base is installed at the front end of the base. The second gear rolls on the gear base. The first gear meshes with the second gear. A mounting plate is provided on the second gear. The wrist swing device is installed at the bottom end of the mounting plate. The wrist swing device includes a rotating shaft with a groove. The second bandage is installed on the top of the iron block, and the iron block is placed in the groove.

[0009] Furthermore, a magnet is provided in the groove, and the magnet magnetically attracts the iron block into the groove.

[0010] Furthermore, the wrist swing device also includes a third motor mounting bracket and a third motor. The third motor mounting bracket is suspended from the bottom end of the mounting plate, the third motor is mounted on the third motor mounting bracket, and the rotating shaft is mounted on the output end of the third motor.

[0011] Furthermore, a wrist pad is provided on the upper surface of the mounting plate.

[0012] The beneficial effects of this invention are as follows:

[0013] This invention can be placed on a desktop to help patients with training, which is suitable for patients' daily use scenarios; the four fingers other than the thumb pass through the second bandage, and the first bandage fixes the patient's forearm, making the structure simple and easy to wear; the rehabilitation training is driven by the first motor, the second motor and the third motor in three degrees of freedom, so patients do not have to exert effort to train, making it applicable to a wide range of scenarios; the combination of three degrees of freedom training can improve the training effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a portable desktop upper limb wrist rehabilitation training device.

[0016] Figure 2 This is a schematic diagram of the wrist swing device.

[0017] Figure 3 This is a schematic diagram of the structure of a portable desktop upper limb wrist rehabilitation training device in the wearable state.

[0018] In the figure:

[0019] 1-Base, 2-First motor mounting bracket, 3-First motor, 4-Second motor mounting bracket, 5-Second motor, 6-Third motor mounting bracket, 7-Third motor, 8-Connecting rod, 9-Fixing bolt, 10-First bandage, 11-First gear, 12-Second gear, 13-Gear base, 14-Wrist pad, 15-Rotating shaft, 16-Iron block, 17-Second bandage, 18-Magnet, 19-Mounting plate, 20-Strip hole, 21-Arm. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] See attached document Figure 1-3 As shown, the present invention provides a convenient desktop upper limb wrist rehabilitation training device, including: a base 1, an elbow flexion and extension device, a wrist rotation device, and a wrist swing device. The wrist rotation device and the elbow flexion and extension device are respectively installed at the front end and the rear end of the base 1, and the wrist swing device is installed on the wrist rotation device. The elbow flexion and extension device drives the elbow to flex and extend, so that the wrist swings up and down for training. The wrist rotation device drives the wrist to rotate for training. The wrist swing device drives the wrist to swing left and right for training.

[0022] In a preferred embodiment, the elbow flexion and extension device includes a first motor mounting bracket 2, a first motor 3, a connecting rod 8, a fixing bolt 9, and a first bandage 10. The first motor mounting bracket 2 is mounted on the rear end of the base 1. The first motor 3 is horizontally arranged on the first motor mounting bracket 2, perpendicular to the upper limb of the human body. One end of the connecting rod 8 is fixedly mounted on the output end of the first motor 3. The fixing bolt 9 fixes the first bandage 10 to the connecting rod 8. The first motor 3 rotates repeatedly, driving the forearm on the connecting rod 8 and the first bandage 10 to swing around the elbow joint. Since the second bandage 17, through which the four fingers excluding the thumb pass, is fixed with an iron block 16, it is equivalent to adding weight to the hand. During the up-and-down swinging of the forearm around the elbow joint, the wrist receives up-and-down swing training.

[0023] In a preferred embodiment, the connecting rod 8 is provided with a slotted hole 20, and the fixing bolt 9 moves on the slotted hole 20 to adjust the fixed position of the first bandage 10 on the connecting rod 8. Since the length of a patient's arm 21 may vary, the distance from the position where the first bandage 10 is fixed to the forearm to the elbow joint will also differ. Therefore, the slotted hole 20 on the connecting rod 8 can adjust the fixed position of the first bandage 10 on the connecting rod 8 to accommodate arms 21 of different lengths.

[0024] In a preferred embodiment, the wrist rotation device includes a second motor mounting bracket 4, a second motor 5, a first gear 11, a second gear 12, a gear base 13, an iron block 16, and a second bandage 17. The second motor mounting bracket 4 is mounted on one side of the front end of the base 1. The second motor 5 is horizontally arranged on the second motor mounting bracket 4 and parallel to the upper limb of the human body. The first gear 11 is mounted on the output end of the second motor 5. The gear base 13 is mounted on the front end of the base 1. The second gear 12 rolls on the gear base 13. The first gear 11 meshes with the second gear 12. A mounting plate 19 is provided on the second gear 12. The wrist swing device is mounted on the bottom end of the mounting plate 19. The wrist swing device includes a rotating shaft 15 with a groove. The second bandage 17 is mounted on the top of the iron block 16, and the iron block 16 is placed in the groove. The second motor 5 rotates back and forth, driving the first gear 11 and the second gear 12 to mesh and rotate, thereby enabling the second gear 12 to roll back and forth on the gear base 13. The four fingers of the hand, excluding the thumb, are fixed in the second bandage 17. The iron block 16 of the second bandage 17 is in the groove. When the second gear 12 rolls back and forth on the gear base 13, the rotating shaft 15 of the wrist swing device drives the iron block 16 in the groove to swing back and forth with the second gear 12, thereby realizing the second bandage 17 and the hand to rotate back and forth around the wrist joint, and the wrist receives rotational swing training.

[0025] In a preferred embodiment, a magnet 18 is provided in the groove, which magnetically attracts the iron block 16 into the groove. During the flexion and extension movement of the elbow, the arm 21 is raised along with the first bandage 10, and then the wrist is raised accordingly. The iron block 16 and the second bandage 17 are disengaged from the groove of the pivot 15. When the wrist falls, the iron block 16 and the second bandage 17 enter the groove of the pivot 15 and are tightly connected by the magnet 18.

[0026] In a preferred embodiment, the wrist swing device further includes a third motor mounting bracket 6 and a third motor 7. The third motor mounting bracket 6 is suspended from the bottom end of the mounting plate 19, and the third motor 7 is mounted on the third motor mounting bracket 6. The rotating shaft 15 is mounted on the output end of the third motor 7. The third motor 7 rotates back and forth, driving the rotating shaft 15 and the iron block 16 to move, thereby causing the hand to swing back and forth with the second bandage 17, ultimately achieving left and right wrist swing training.

[0027] In a preferred embodiment, a wrist pad 14 is provided on the upper surface of the mounting plate 19, which provides comfortable support for the wrist during training.

[0028] Example 1

[0029] The first motor 3 rotates repeatedly, driving the connecting rod 8 and the forearm on the first bandage 10 on the connecting rod 8 to swing around the elbow joint. Since the second bandage 17 through which the four fingers excluding the thumb pass is fixed with the iron block 16, as the forearm of the arm 21 swings up and down around the elbow joint, the arm 21 is lifted along with the first bandage 10, and then the wrist is lifted accordingly. The iron block 16 and the second bandage 17 disengage from the groove of the rotating shaft 15. When the wrist falls, the iron block 16 and the second bandage 17 enter the groove of the rotating shaft 15 and are tightly connected by the magnet 18, which is equivalent to adding weight to the hand and training the wrist to swing up and down.

[0030] Example 2

[0031] The four fingers of the hand, excluding the thumb, are fixed in the second bandage 17. The iron block 16 of the second bandage 17 is in the groove. When the second gear 12 rolls back and forth on the gear base 13, the rotating shaft 15 drives the iron block 16 in the groove to swing back and forth with the second gear 12, thereby realizing the rotation of the second bandage 17 and the hand around the wrist joint, and the wrist gets rotational swing training.

[0032] Example 3

[0033] The third motor 7 rotates back and forth, driving the rotating shaft 15 and the iron block 16 to move, thereby causing the hand to swing back and forth with the second bandage 17, ultimately achieving left and right swing training of the wrist.

[0034] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable desktop upper limb wrist rehabilitation training device, characterized in that, include: The system includes a base, an elbow flexion and extension device, a wrist rotation device, and a wrist swing device. The wrist rotation device and the elbow flexion and extension device are respectively installed at the front and rear ends of the base, and the wrist swing device is installed on the wrist rotation device. The elbow flexion and extension device drives the elbow to flex and extend, causing the wrist to swing up and down for training. The wrist rotation device drives the wrist to rotate for training, and the wrist swing device drives the wrist to swing left and right for training. The wrist rotation device includes a second motor mounting bracket, a second motor, a first gear, a second gear, a gear base, an iron block, and a second bandage. The second motor mounting bracket is installed on one side of the front end of the base. The second motor is horizontally arranged on the second motor mounting bracket and parallel to the upper limb of the human body. The first gear is installed at the output end of the second motor. The gear base is installed at the front end of the base. The second gear rolls on the gear base. The first gear meshes with the second gear. A mounting plate is provided on the second gear. The wrist swing device is installed at the bottom end of the mounting plate. The wrist swing device includes a rotating shaft with a groove. The second bandage is installed on the top of the iron block, and the iron block is placed in the groove.

2. The portable desktop upper limb wrist rehabilitation training device according to claim 1, characterized in that, The elbow flexion and extension device includes a first motor mounting bracket, a first motor, a connecting rod, a fixing bolt, and a first bandage. The first motor mounting bracket is installed at the rear end of the base. The first motor is horizontally arranged on the first motor mounting bracket and perpendicular to the human upper limb. One end of the connecting rod is fixedly installed at the output end of the first motor. The fixing bolt fixes the first bandage to the connecting rod.

3. The portable desktop upper limb wrist rehabilitation training device according to claim 2, characterized in that, The connecting rod is provided with a strip-shaped hole, and the fixing bolt can be moved in the strip-shaped hole to adjust the fixed position of the first bandage on the connecting rod.

4. The portable desktop upper limb wrist rehabilitation training device according to claim 1, characterized in that, A magnet is provided in the groove, and the magnet attracts the iron block into the groove.

5. The portable desktop upper limb wrist rehabilitation training device according to claim 1, characterized in that, The wrist swing device also includes a third motor mounting bracket and a third motor. The third motor mounting bracket is suspended from the bottom end of the mounting plate, the third motor is mounted on the third motor mounting bracket, and the rotating shaft is mounted on the output end of the third motor.

6. The portable desktop upper limb wrist rehabilitation training device according to claim 1, characterized in that, A wrist rest is provided on the upper surface of the mounting plate.

Images