Mirror therapy aid

Abstract

The application relates to the technical field of medical equipment, in particular to an auxiliary device for mirror image treatment, which comprises a triangular prism structure formed by a bottom plate, a mirror plate and a supporting plate, the mirror plate is hinged to the two opposite side edges of the supporting plate, and the supporting plate is hinged to the two opposite side edges of the bottom plate; one side edge of the mirror plate away from the supporting plate is slidably connected to the bottom plate along the length direction of the bottom plate, and an adjusting part for driving the mirror plate to slide on the bottom plate is arranged on the bottom plate; a supporting bracket is further arranged above the bottom plate and is slidably connected to the bottom plate along the vertical direction, a linkage assembly is arranged between the supporting bracket and the mirror plate, and when the adjusting part drives the mirror plate to slide to increase the included angle between the mirror plate and the supporting plate, the supporting bracket is driven to slide downward through the linkage assembly. The auxiliary device can solve the problem that in the prior art, when the upper limbs are subjected to mirror image training treatment, no supporting structure is used to support and lift the head of a patient, the patient's neck is easily tired due to the long-time maintenance of the tilted posture of the head.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to an auxiliary device for mirror therapy. Background Technology

[0002] Mirror therapy, also known as mirror visual feedback therapy, is a treatment method based on visual stimulation. It uses the principle of plane mirror imaging to copy the image of the healthy side's activity to the affected side, allowing the patient to imagine the movement of the affected side. It combines visual illusion, visual feedback, and virtual reality with rehabilitation training programs.

[0003] In existing technologies, when performing mirror training therapy on the upper limb, a plane mirror is usually placed between the affected upper limb and the unaffected upper limb, with the mirror surface facing the unaffected upper limb. The patient needs to tilt their head to the unaffected side, and the tilt angle of the plane mirror needs to be adjusted according to the height of the patient's head in order to observe the image in the plane mirror (the mirror image of the movement of the unaffected upper limb), so as to facilitate subsequent mirror training therapy.

[0004] However, it lacks a supporting structure to support and lift the patient's head. Maintaining a tilted head posture for a long time can easily lead to neck fatigue and even induce cervical spine diseases. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an auxiliary device for mirror therapy to solve the problem in the prior art that when performing mirror training therapy on the upper limbs, there is no support structure to support and lift the patient's head, resulting in the patient's head being in a tilted position for a long time and the patient's neck being easily fatigued.

[0006] This invention is achieved through the following technical solution: An auxiliary device for mirror therapy includes a triangular prism structure formed by a base plate, a mirror plate, and a support plate, wherein the mirror plate is hinged to the opposite sides of the support plate, and the support plate is hinged to the opposite sides of the base plate. The mirror plate is slidably connected to the base plate along the length of the base plate on one side facing away from the support plate. The base plate is provided with an adjustment part for driving the mirror plate to slide on the base plate. A support bracket is also provided above the base plate. The support bracket is slidably connected to the base plate in the vertical direction. A linkage component is provided between the support bracket and the mirror plate. When the adjustment part drives the mirror plate to slide and increase the angle between the mirror plate and the support plate, the linkage component drives the support bracket to slide downward.

[0007] Furthermore, a groove extending in the length direction is provided on the top surface of the base plate, and the adjustment part includes a first lead screw and a slider embedded in the groove; The two ends of the first lead screw are respectively inserted into the two end walls of the slide groove and rotated with the base plate, and one end of the first lead screw extends out of the base plate; The slider is sleeved in the middle of the first lead screw and connected to the first lead screw by a threaded engagement. The slider is slidably engaged with the slide groove, and the top of the slider is hinged to the side of the mirror plate facing away from the support plate.

[0008] Furthermore, the support base surface is provided with threaded holes, and the linkage assembly includes a second lead screw in a vertical position and two meshing bevel gears; The top end of the second lead screw is inserted into the threaded hole and connected by threaded engagement. The middle part of the second lead screw is rotatably connected to the base plate with the second lead screw axis as the center. The bottom end of the second lead screw is coaxially and fixedly connected to one of the bevel gears, and the other bevel gear is coaxially and fixedly connected to the middle part of the first lead screw.

[0009] Furthermore, the length of the mirror plate is 40cm, the length of the support plate is 50cm, the horizontal distance between the support bracket and the fixed hinge point of the support plate is 70cm, and the total transmission ratio between the slider and the support bracket is 4:1.

[0010] Furthermore, the chute is located on the front side of the top surface of the base plate, and the support bracket is located directly above the end of the chute facing away from the support plate.

[0011] Furthermore, a pressure block is provided above one end of the slide rail facing away from the support plate, and the pressure block is detachably and fixedly connected to the base plate; The outer surface of the first lead screw has an annular groove at a point directly below the pressure block. The bottom surface of the pressure block has a boss, the bottom end of which is inserted into the annular groove, and the outer wall of the boss is in contact with the two inner walls of the annular groove along the axis.

[0012] Furthermore, a vertically positioned sliding rod is provided above the pressure block, and the bottom end of the sliding rod is fixedly connected to the pressure block; The support base surface has a sliding hole adapted to the sliding rod, and the top of the sliding rod is inserted into the sliding hole and slidably engaged.

[0013] Furthermore, the length of the mirror plate is smaller than the length of the support plate.

[0014] Furthermore, when the slider abuts against the end of the slide groove facing the support plate, the mirror plate is parallel to the support plate.

[0015] Furthermore, the inner side of the support plate is provided with a groove that matches the shape of the mirror plate, and one side of the mirror plate is hinged to an inner wall of the groove facing away from the bottom plate.

[0016] The beneficial effects of this invention are as follows: This is an auxiliary device for mirror therapy. By setting a support bracket above the base plate to support the patient's head, it reduces the pressure on the patient's neck during mirror training and protects the cervical spine. The support bracket is slidably connected to the base plate in the vertical direction, so that it has a lifting function and is suitable for patients of various heights.

[0017] Meanwhile, the lifting and sliding of the support bracket is linked to the sliding of the mirror plate through the linkage component. When in use, you only need to operate the mirror plate to increase / decrease the tilt angle, which will drive the support bracket to rise / fall synchronously. This allows the head on the support bracket to normally observe the mirror image of the movement of the healthy upper limb inside the mirror plate. There is no need to adjust the height of the support bracket and the tilt angle of the mirror plate separately, reducing the operation steps and making the overall structure of the device more compact and stable.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention; Figure 2 This is a three-dimensional structural diagram of Embodiment 2 of the present invention; Figure 3 This is an exploded view of Embodiment 2 of the present invention; Figure 4 This is a cross-sectional view of Embodiment 2 of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a three-dimensional structural diagram of the support bracket in Embodiment 2 of the present invention; Figure 7 This is a three-dimensional structural diagram of the first lead screw in Embodiment 2 of the present invention; Figure 8 This is a three-dimensional structural diagram of the pressure block in Embodiment 2 of the present invention.

[0020] In the diagram: 1. Base plate; 11. Slide groove; 2. Mirror plate; 21. Plane mirror; 3. Support plate; 31. Groove; 4. Support bracket; 41. Threaded hole; 42. Slide hole; 51. First lead screw; 511. Annular groove; 52. Slider; 61. Second lead screw; 62. Bevel gear; 63. Cylindrical gear; 64. Rack; 65. Pin; 7. Pressure block; 71. Boss; 72. Slide rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0026] Example 1 Please see Figure 1 The present invention provides a technical solution: an auxiliary device for mirror therapy, comprising a triangular prism structure formed by a base plate 1, a mirror plate 2 and a support plate 3, wherein the mirror plate 2 and the support plate 3 are hinged to opposite sides, and the support plate 3 and the base plate 1 are hinged to opposite sides. The mirror plate 2 is slidably connected to the base plate 1 along the length of the base plate 1 on one side facing away from the support plate 3. The base plate 1 is provided with an adjustment part for driving the mirror plate 2 to slide on the base plate 1. A support bracket 4 is also provided above the base plate 1. The support bracket 4 is slidably connected to the base plate 1 in the vertical direction. A linkage component is provided between the support bracket 4 and the mirror plate 2. When the adjustment part drives the mirror plate 2 to slide and increase the angle between the mirror plate 2 and the support plate 3, the support bracket 4 is driven to slide downward through the linkage component.

[0027] In this solution, a support bracket 4 is set above the base plate 1 to support the patient's head, reducing the pressure on the patient's neck during mirror training and protecting the cervical spine. The support bracket 4 is slidably connected to the base plate 1 in the vertical direction, giving it a lifting function, which is suitable for patients of various heights.

[0028] Meanwhile, the lifting and sliding of the support 4 is linked to the sliding of the mirror plate 2 through the linkage component. When in use, you only need to operate the mirror plate 2 to increase / decrease the tilt angle, which will drive the support 4 to rise / fall synchronously. This allows the head on the support 4 to normally observe the mirror image of the movement of the healthy upper limb in the mirror plate 2. There is no need to adjust the height of the support 4 and the tilt angle of the mirror plate 2 separately, reducing the operation steps and making the overall structure of the device more compact and stable.

[0029] The mirror plate 2 consists of a plate body and a plane mirror 21. The plate body serves as a supporting structure, connecting to the support plate 3 and the base plate 1. The plane mirror 21 is mounted on the outer surface of the plate body, such as by adhesive bonding. The triangular prism structure, composed of the mirror plate 2, support plate 3, and base plate 1, has a hollow internal area for the affected upper limb to extend into, and this triangular prism structure is used to cover the field of vision of the affected upper limb. The unaffected upper limb can be placed flat on the base plate 1 outside the triangular prism structure.

[0030] The linkage component can be selected as a cylindrical gear 63 and two racks 64 that mesh with the cylindrical gear 63.

[0031] For example, a cylindrical gear 63 is rotatably mounted on a base plate 1 with its rotation centerline parallel to the hinge axis of the support plate 3. Then, one rack 64 is placed on the side of the cylindrical gear 63 facing the support plate 3, its top end is fixedly connected to the support bracket 4, and the rack 64 is slidably connected to the base plate 1 in the vertical direction. The other rack 64 is placed below the cylindrical gear 63 and slidably connected to the base plate 1 along its length, with its end facing the support plate 3 hinged to the edge of the mirror plate 2. The cylindrical gear 63 can be a double gear (which can be understood as a transmission component consisting of two gears with different numbers of teeth coaxially fixed together). The two racks 64 mesh with the two gears of the double gear. By setting the number of teeth on the two gears, the transmission ratio of the two racks 64, i.e., the ratio of the vertical rack 64 displacement to the horizontal rack 64 displacement, can be adjusted.

[0032] Alternatively, multiple pin holes can be made on the vertical rack 64 and evenly arranged in the vertical direction. Pins 65 can be inserted into the pin holes, so that the pins 65 act as protrusions on the tooth surface of the rack 64. When the pins 65 abut against the gear, the purpose of limiting the support bracket 4 from moving further downward is achieved, thus limiting the lowest point of the support bracket 4. The position of the pins 65 can be adjusted by inserting and removing the pins 65, thereby controlling the lowest point of the support bracket 4.

[0033] The usage steps are as follows: S1, place the device flat on the table, the patient sits steadily on the stool or chair, manually pull the pin 65 out of the pin hole to remove the limit on the rack 64, and the medical staff or the patient themselves lift up or press down the support 4 according to the height of the patient's head. The gear rotates and drives the mirror plate 2 to rotate through the rack 64 below, increasing or decreasing the tilt angle of the mirror plate 2. S2, once the support bracket 4 is against the patient's jaw, use one hand to hold the position of the support bracket 4, and use the other hand to operate the pin 65 to insert into the nearest pin hole above the rack 64, and release the support of the support bracket 4 to make it drop slightly (e.g., multiple pin holes are arranged in a linear array with a spacing of 1cm) until the pin 65 abuts against the gear to limit the position. S3, the patient extends the affected upper limb into the triangular prism structure, and places the unaffected upper limb outside the triangular prism structure, facing the plane mirror 21 on the mirror plate 2. Then, the patient rests the chin on the support 4 to distribute the pressure on the head and reduce the patient's neck fatigue. The position of the unaffected upper limb is finely adjusted by looking at the plane mirror 21 so that its mirror image can be observed normally in the plane mirror 21. Then, mirror training and other rehabilitation treatments are performed.

[0034] In this embodiment: a groove 11 extending in the length direction is provided on the top surface of the base plate 1, and the adjustment part includes a first lead screw 51 and a slider 52 embedded in the groove 11; The first lead screw 51 is inserted into the two end walls of the slide groove 11 and rotates with the base plate 1, with one end of the first lead screw 51 extending out of the base plate 1; The slider 52 is sleeved in the middle of the first lead screw 51 and connected to the first lead screw 51 by a threaded engagement. The slider 52 is slidably engaged with the slide groove 11, and the top of the slider 52 is hinged to the side of the mirror plate 2 facing away from the support plate 3.

[0035] In this scheme, the first lead screw 51 and the slider 52 are used to replace the horizontal rack 64. By threading the first lead screw 51 and the slider 52, it is only necessary to drive the first lead screw 51 to rotate, which will drive the mirror plate 2 to rotate through the slider 52 and change the tilt angle.

[0036] The gear is sleeved outside the middle of the first lead screw 51 and is coaxially fixedly connected. When the support 4 is raised and lowered, it drives the gear and the first lead screw 51 to rotate. The external thread of the first lead screw 51 applies axial thrust to the slider 52, thereby causing the bottom edge of the mirror plate 2 (the side facing away from the support plate 3) to abut against the top surface of the base plate 1 and slide along the length of the base plate 1, automatically changing the tilt angle of the mirror plate 2.

[0037] Example 2 Please see Figures 2-8 The difference from Embodiment 1 is that in this embodiment: the support bracket 4 has a threaded hole 41 on its bottom surface, and the linkage component includes a second lead screw 61 in a vertical state and two meshing bevel gears 62; The top end of the second lead screw 61 is inserted into the threaded hole 41 and connected by a threaded engagement. The middle part of the second lead screw 61 is rotatably connected to the base plate 1 with the axis of the second lead screw 61 as the center. The bottom end of the second lead screw 61 is coaxially fixedly connected to one of the bevel gears 62, and the other bevel gear 62 is coaxially fixedly connected to the middle part of the first lead screw 51.

[0038] In this design, a transmission structure consisting of a second lead screw 61, two bevel gears 62, a first lead screw 51, and a slider 52 replaces the transmission structure consisting of gears, two racks 64, and a pin 65. Self-locking is achieved using the friction between the external thread of the first lead screw 51 and the internal thread of the slider 52. That is, when no circumferential (rotational) external force is applied to the first lead screw 51, but only an axial external force is applied, the position of the slider 52 on the first lead screw 51 remains stable.

[0039] When the height of the support bracket 4 needs to be adjusted, simply rotate the first lead screw 51 at one end outside the base plate 1. This will drive the support bracket 4 to move up and down via the two bevel gears 62 and the second lead screw 61. At the same time, the slider 52 drives the mirror plate 2 to rotate and change the tilt angle, simplifying the operation steps and providing convenience for the user.

[0040] The two bevel gears 62 can also be replaced by a worm gear mechanism. For example, the worm can be used as the driving element and coaxially fixedly connected to the middle of the first lead screw 51, and the worm wheel can be coaxially fixedly connected to the bottom of the second lead screw 61. By utilizing the self-locking principle of the worm gear, the slippage rotation of the second lead screw 61 under the pressure of the support bracket 4 is restricted. The lifting and lowering of the support bracket 4 can only be achieved by driving the first lead screw 51 to rotate, which greatly improves the stability of the device.

[0041] In this embodiment: the slide groove 11 is located on the front side of the top surface of the base plate 1, and the support bracket 4 is located directly above the end of the slide groove 11 facing away from the support plate 3.

[0042] In this design, the slide 11 is located on the side (front) of the base plate 1 closest to the patient, so that the support 4 above can support the patient's head.

[0043] In this embodiment: a pressure block 7 is provided above one end of the slide groove 11 facing away from the support plate 3, and the pressure block 7 is detachably fixed to the base plate 1; The outer circular surface of the first lead screw 51 has an annular groove 511 at a section directly below the pressure block 7. The bottom surface of the pressure block 7 is provided with a boss 71. The bottom end of the boss 71 is inserted into the annular groove 511, and the outer wall is in contact with the two inner walls of the annular groove 511 along the axis.

[0044] In this design, the bottom surface of the boss 71 is provided with an arc-shaped notch that matches the inner diameter of the annular groove 511 on the first lead screw 51. By embedding the boss into the annular groove 511, the arc surface of the arc groove is made to fit with the circular surface of the annular groove 511. The boss 71 is used to hold the first lead screw 51, thereby providing axial positioning for the first lead screw 51.

[0045] The pressure block 7 is detachably fixed to the base plate 1 (e.g., bolted), and the pressure block 7 can be removed to facilitate the inspection and replacement of components such as the first lead screw 51 and bevel gear 62 in the slide groove 11.

[0046] Meanwhile, sliding grooves 11 can be set on both the front and rear sides of the top plate 1. By removing the pressure block 7 (support bracket 4), the installation position of the support bracket 4 can be adjusted to suit different affected upper limbs. For example, if the right upper limb is injured and the left upper limb is healthy, the support bracket 4 is installed above the front sliding groove 11. When the left upper limb is injured and the right upper limb is healthy, the support bracket 4 is installed above the rear sliding groove 11. Then, the device is rotated 180° so that the rear side becomes the front side and the support bracket 4 faces the patient to assist in mirror training.

[0047] In this embodiment: a vertical sliding rod 72 is provided above the pressure block 7, and the bottom end of the sliding rod 72 is fixedly connected to the pressure block 7; The bottom surface of the support 4 is provided with a sliding hole 42 that is adapted to the slide rod 72. The top end of the slide rod 72 is inserted into the sliding hole 42 and slides in fit.

[0048] In this design, the slide rod 72 is prismatic in shape. By inserting the top of the slide rod 72 into the slide hole 42 and sliding it, it guides the support bracket 4, allowing the support bracket 4 to slide only in the vertical direction.

[0049] In this embodiment, the length of the mirror plate 2 is smaller than the length of the support plate 3.

[0050] In this design, a triangular prism structure is formed by the mirror plate 2, the support plate 3, and the base plate 1. Its longitudinal section is triangular, with the mirror plate 2 as the shorter side and the support plate 3 as the longer side. When the slider 52 moves a certain distance, the shorter mirror plate 2 will produce a greater angle change than the longer inclined plate, thus providing a wider range of adjustment. For example, the mirror plate 2 can be rotated to a vertical position (tilt angle of 90°).

[0051] In this embodiment: when the slider 52 abuts against the end of the slide groove 11 facing the support plate 3, the mirror plate 2 is parallel to the support plate 3.

[0052] In this design, the end of the slide groove 11 facing the support plate 3 serves as the starting point for the sliding of the slider 52. When the slider 52 is at this starting point, the mirror plate 2, the support plate 3, and the base plate 1 are parallel to each other and are in a folded storage state. The support bracket 4 is installed on the base plate 1 by the pressure block 7. The vertical space occupied by the device can be reduced by removing the pressure block 7, so as to facilitate further storage of the device.

[0053] In this embodiment: the inner side of the support plate 3 is provided with a groove 31 that matches the shape of the mirror plate 2, and one side of the mirror plate 2 is hinged to the inner wall of the groove 31 facing away from the bottom plate 1.

[0054] In this solution, by rotating the mirror plate 2 and retracting it into the groove 31, the support plate 3 contacts the base plate 1, thus avoiding direct contact between the plane mirror 21 on the mirror plate 2 and the top surface of the base plate 1, reducing the risk of the plane mirror 21 being squeezed and damaged during the folding and storage process.

[0055] The upper surface of the mirror plate 2 has an installation groove, and the plane mirror 21 is embedded in the installation groove and fixedly connected (such as by adhesive), so that the mirror surface of the plane mirror 21 is sunk into the installation groove and does not protrude from the outer surface of the plate.

[0056] In this embodiment: the length of the mirror plate 2 is 40cm, the length of the support plate 3 is 50cm, the horizontal distance between the support bracket 4 and the fixed hinge point of the support plate 3 is 70cm, and the total transmission ratio between the slider 52 and the support bracket 4 is 4:1.

[0057] In this design, the slider 52 slides within the groove 11, and can present the following states: In state one, the slider 52 abuts against the end wall of the slide groove 11 facing the fixed hinge point, and the horizontal distance between the slider 52 and the fixed hinge point is 10cm. The mirror plate 2, the support plate 3 and the base plate 1 are stacked and stored. State 2: The mirror plate 2 is perpendicular to the base plate 1, the tilt angle of the mirror plate 2 is α=90°, and the horizontal distance between the slider 52 and the fixed hinge point is 30cm. In state three, slider 52 abuts against pressure block 7, and the horizontal distance between slider 52 and fixed hinge point is 70cm.

[0058] When the mirror plate 2 is in state two or three, the plane mirror 21 on its outer surface can reflect light upwards, and the patient can observe the mirror image of the unaffected upper limb on the mirror surface of the mirror plate 2.

[0059] Combining the Law of Cosines: L1 — Length of mirror plate 2 L2 — Length of support plate 3 Calculations show that in state three, α≈45°, the actual working tilt angle of mirror plate 2 is between 45° and 90°, and the total sliding stroke of slider 52 is 60cm, but the effective working stroke (the segment from state two to state three) is ΔX=40cm. Since the line of sight of adults in a sitting posture (ignoring head shape differences, the height of support 4 is used to represent the line of sight height) is mostly 45-55cm on the table, 45-55cm is taken as the effective working stroke of support 4, ΔY=10cm. Correspondingly, in state three, the vertical distance between support 4 and base plate 1 is 45cm, and in state two, the vertical distance is 55cm.

[0060] Therefore, the total transmission ratio between slider 52 and support bracket 4 is... The total transmission ratio is composed of the threaded pair between the first lead screw 51 and the slider 52, the gear pair between the two bevel gears 62, and the threaded pair between the second lead screw 61 and the support bracket 4. By using two bevel gears 62 with different specifications (such as the number of teeth), the tooth ratio can be made to be 1 (corresponding to the first lead screw 51): 4 (corresponding to the second lead screw 61), that is, the second lead screw 61 only rotates once for the first lead screw 51 to rotate four times. At the same time, two lead screws with the same specifications (such as the lead) are used to achieve a total transmission ratio of 4:1.

[0061] Finally, the height of support 4 in state one was calculated to be 60cm, and the total stroke of support 4 was 15cm.

[0062] Additionally, during use, the unaffected upper limb is placed on the side of the support 4 facing away from the mirror plate 2. A hand placement area can be set on the top surface of the base plate 1 facing away from the fixed hinge point (e.g., the hand placement area can be painted a different color from the surrounding area for distinction). This allows for initial positioning of the patient's unaffected upper limb. During mirror training, the patient needs to make minor adjustments to the horizontal position or vertical height so that the plane mirror 21 on the mirror plate 2 can stably display the mirrored pattern. The main function of this device is to support and lift the patient's jaw using the support 4 during mirror training, reducing neck fatigue. It is also suitable for patients of different heights and has high practicality.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An auxiliary device for mirror therapy, characterized in that: It includes a triangular prism structure formed by a base plate (1), a mirror plate (2) and a support plate (3), wherein the mirror plate (2) and the support plate (3) are hinged to each other on opposite sides, and the support plate (3) and the base plate (1) are hinged to each other on opposite sides. The mirror plate (2) is slidably connected to the base plate (1) along the length of the base plate (1) on one side away from the support plate (3). The base plate (1) is provided with an adjustment part for driving the mirror plate (2) to slide on the base plate (1). A support bracket (4) is also provided above the base plate (1). The support bracket (4) is slidably connected to the base plate (1) in the vertical direction. A linkage component is provided between the support bracket (4) and the mirror plate (2). When the adjustment part drives the mirror plate (2) to slide and increase the angle between the mirror plate (2) and the support plate (3), the support bracket (4) is driven to slide downward through the linkage component.

2. The auxiliary device for mirror therapy according to claim 1, characterized in that: The bottom plate (1) has a groove (11) extending in the length direction on its top surface. The adjustment part includes a first lead screw (51) and a slider (52) embedded in the groove (11). The first lead screw (51) is inserted into the two end walls of the slide groove (11) and rotates with the base plate (1), and one end of the first lead screw (51) extends out of the base plate (1); The slider (52) is sleeved in the middle of the first lead screw (51) and connected to the first lead screw (51) by a threaded connection. The slider (52) is slidably engaged with the slide groove (11), and the top of the slider (52) is hinged to the side of the mirror plate (2) facing away from the support plate (3).

3. The auxiliary device for mirror therapy according to claim 2, characterized in that: The support bracket (4) has a threaded hole (41) on its bottom surface. The linkage assembly includes a second lead screw (61) in a vertical position and two meshing bevel gears (62). The top end of the second lead screw (61) is inserted into the threaded hole (41) and connected by threaded engagement. The middle part of the second lead screw (61) is rotatably connected to the base plate (1) with the axis of the second lead screw (61) as the center. The bottom end of the second lead screw (61) is coaxially fixedly connected to one of the bevel gears (62), and the other bevel gear (62) is coaxially fixedly connected to the middle part of the first lead screw (51).

4. The auxiliary device for mirror therapy according to claim 3, characterized in that: The length of the mirror plate (2) is 40cm, the length of the support plate (3) is 50cm, the horizontal distance between the support bracket (4) and the fixed hinge point of the support plate (3) is 70cm, and the total transmission ratio between the slider (52) and the support bracket (4) is 4:

1.

5. The auxiliary device for mirror therapy according to claim 2, characterized in that: The slide (11) is located on the front side of the top surface of the base plate (1), and the support bracket (4) is located directly above the end of the slide (11) facing away from the support plate (3).

6. The auxiliary device for mirror therapy according to claim 2, characterized in that: A pressure block (7) is provided above one end of the slide (11) facing away from the support plate (3), and the pressure block (7) is detachably fixed to the base plate (1); The first lead screw (51) has an annular groove (511) on the outer circular surface directly below the pressure block (7). The pressure block (7) has a boss (71) on its bottom surface. The bottom end of the boss (71) is inserted into the annular groove (511), and its outer wall is in contact with the two inner walls of the annular groove (511) along the axis.

7. The auxiliary device for mirror therapy according to claim 6, characterized in that: A vertical sliding rod (72) is provided above the pressure block (7), and the bottom end of the sliding rod (72) is fixedly connected to the pressure block (7); The bottom surface of the support bracket (4) is provided with a sliding hole (42) that is compatible with the slide rod (72). The top end of the slide rod (72) is inserted into the sliding hole (42) and slides together.

8. The auxiliary device for mirror therapy according to claim 2, characterized in that: The length of the mirror plate (2) is smaller than the length of the support plate (3).

9. The auxiliary device for mirror therapy according to claim 8, characterized in that: When the slider (52) abuts against the end of the groove (11) facing the support plate (3), the mirror plate (2) is parallel to the support plate (3).

10. The auxiliary device for mirror therapy according to claim 8, characterized in that: The inner side of the support plate (3) is provided with a groove (31) that matches the shape of the mirror plate (2), and one side of the mirror plate (2) is hinged to the inner wall of the groove (31) facing away from the bottom plate (1).

Images