Finger flexion and extension training device

Abstract

The present invention belongs to a rehabilitation training device, and specifically relates to a finger flexion and extension training instrument, comprising a base plate, a wristband, five finger fixings, and a flexion drive device and an extension drive device for driving the finger fixings to move. The flexion drive device comprises a retracting and releasing wire device I arranged on the upper surface of the wristband, and five driving ropes I connected to the finger fixings are arranged on the retracting and releasing wire device I. The extension drive device comprises a retracting and releasing wire device II arranged on the bottom surface of the base plate or the lower surface of the wristband, and five guide rings I arranged on the base plate at the lower ends of five fingers, and five driving ropes II connected to the finger fixings are arranged on the retracting and releasing wire device II, and the driving ropes II are arranged through the guide rings I. The present invention realizes the flexion and extension movement of the fingers by arranging the flexion drive device and the extension drive device to drive the five finger fixings arranged on the five fingers of the trainee to move. The overall structure is simple, the wearing is convenient, and the training effect is good.

Description

Technical Field

[0001] The invention belongs to a rehabilitation training device, in particular to a finger flexion and extension training instrument. Background Art

[0002] The basic movements of the hand include non-grasping movements and grasping movements. Inadvertently, the hand can complete thousands of flexion and extension, finger-to-finger, palm-to-palm and grasping movements in a day. The hand is one of the most important structures in the body, and the ability of humans to use tools is largely derived from the fine control of the hand's grasping function.

[0003] The functions of the hands are delicate and complex. Once functional disorders occur, the control and coordination of the hands will be seriously affected, and fine motor skills will be difficult or even impossible. This will seriously affect the ability to carry out daily activities, such as eating, typing, driving, drawing and writing, etc. Long-term neglect may even cause stiffness and paralysis of the hands.

[0004] Hand dysfunction after stroke is a common symptom in stroke patients. The flexor tension of the fingers increases, resulting in loose grip, flexion and extension disorders, and the fingers are easily inflexible or bent, which leads to the inability to take care of themselves. In the process of rehabilitation treatment, the most important thing is how to promote the extension of fingers alone and complete all grasping movements. The recovery of finger function in hemiplegic patients basically follows this step: from full finger flexion, hook grasping, side pinching, spherical and cylindrical grasping, fingers can be extended at the same time, all grasping can be completed, and fingers can be extended individually. That is, transition from the flexion mode of the fingers to the extension mode to improve the coordination and control ability of the fingers.

[0005] At this time, the purpose of rehabilitation is to continuously bend and straighten the patient's fingers, but this operation is usually performed by family members or medical staff, which is a long process and difficult to persist in for a long time, thus increasing the burden on medical staff. Therefore, the current treatment method is generally to manually assist the patient's fingers to perform continuous passive flexion and extension training, which can increase the recovery speed of the patient's fingers.

[0006] At present, the common finger flexion and extension exercise devices on the market generally face the following problems: their structure is relatively simple, they can only perform simple flexion and extension exercises, the training effect is poor, and they are inconvenient to wear, have low market competitiveness, and are not very practical. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a finger flexion and extension training device which has good training effect and is easy to wear.

[0008] The content of the present invention includes a base plate, a wristband, five finger fixings, and a flexion drive device and an extension drive device for driving the finger fixings to move. The flexion drive device includes a retractable line device I arranged on the upper surface of the wristband, and the retractable line device I is provided with five drive ropes I connected to the finger fixings. The extension drive device includes a retractable line device II arranged on the bottom surface of the base plate or the lower surface of the wristband and five guide rings I arranged on the base plate at the lower ends of the five fingers, and the retractable line device II is provided with five drive ropes II connected to the finger fixings, and the drive rope II is arranged through the guide ring I.

[0009] The present invention also includes a pressing plate for pressing the palm side, and the cross section of the pressing plate is consistent with the figure formed by the ulnar side of the palm, the emotional line, the instinct line and the wrist-neck line.

[0010] Furthermore, the palm ulnar side of the pressing plate is rotatably connected to the bottom plate through a rectangular bellows.

[0011] Furthermore, the pressure plate is provided with 5 guide rings II on one side of the hand-neck line and the heart line, and the driving rope I passes through the guide rings II and is connected to the finger fixing parts accordingly.

[0012] Furthermore, the base plate includes a back of hand plate and a five-finger plate connected to each other, the thumb plate of the five-finger plate is hinged to the back of hand plate, and a driving motor for driving the thumb plate to swing around the hinge is provided on the bottom surface of the back of hand plate.

[0013] Furthermore, the finger fixing member is detachably connected to the driving rope I and / or the driving rope II.

[0014] Furthermore, a buckle is provided on one side of the wristband.

[0015] The present utility model also includes a housing covering the drive rope II on the bottom plate.

[0016] Furthermore, the wire-retracting and unwinding device I and the wire-retracting and unwinding device II both include a shell and five motors arranged in the shell, a wire winding drum is arranged on the motor output shaft, and the driving rope I and the driving rope II are both connected to the wire winding drum.

[0017] Furthermore, the finger fixing piece is a finger ring or a finger sleeve.

[0018] The beneficial effect of the present invention is that the present invention realizes the flexion and extension of fingers by providing a flexion drive device and an extension drive device to drive the five finger fixing members provided on the five fingers of the trainee to move, and the overall structure is simple, the wear is convenient, and the training effect is good;

[0019] A pressure plate is set to improve the wearing stability of the training device. At the same time, it plays a certain limiting role when the thumb is actively or passively trained on the palm, thereby improving the treatment effect;

[0020] The pressure plate is rotatably connected to the base plate through a rectangular bellows, which improves wearing stability and simplifies wearing difficulty;

[0021] A guide ring II is provided on the pressure plate to facilitate the arrangement of the driving rope I and to prevent the fingers from flexing and extending too much, thereby avoiding the user from being injured;

[0022] The bottom plate includes a swingable thumb plate, which can perform passive palm-to-palm training of the thumb, improve the practicality of the training device, and perform multi-directional training on the fingers;

[0023] The finger fixing piece is detachably connected to the driving rope I and / or driving rope II, which simplifies the wearing difficulty and facilitates the arrangement of the driving rope I, driving rope II and finger fixing piece on the training device, thereby avoiding the phenomenon of rope knotting and line confusion;

[0024] A shell covering the driving rope II is arranged on the bottom plate. During training, the training device is placed on a desktop to improve the training comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure from a first angle of the present invention.

[0026] Figure 2 This is a schematic diagram of the structure from a second angle of the present invention.

[0027] Figure 3 It is the front view of the present invention.

[0028] Figure 4 It is a rear view of the present invention.

[0029] In the figure, 1 is a base plate, 101 is a back of hand plate, 102 is a five-finger plate, 2 is a wrist strap, 3 is a finger fixing part, 4 is a wire-retracting device I, 5 is a driving rope I, 6 is a wire-retracting device II, 7 is a driving rope II, 8 is a guide ring I, 9 is a pressure plate, 10 is a rectangular bellows, 11 is a guide ring II, 12 is a driving motor, and 13 is a fastener. DETAILED DESCRIPTION

[0030] like Figure 1-4 As shown, the present invention includes a base plate 1, a wristband 2, five finger fixings 3, and a flexion drive device and an extension drive device for driving the finger fixings 3 to move, the flexion drive device includes a retractable line device Ⅰ4 arranged on the upper surface of the wristband 2, five driving ropes Ⅰ5 are arranged on the retractable line device Ⅰ4, and the other end of the driving rope Ⅰ5 is connected to the finger fixing 3, the extension drive device includes a retractable line device Ⅱ6 arranged on the bottom surface of the base plate 1 or the lower surface of the wristband 2, and five guide rings Ⅰ8 arranged on the base plate 1 at the lower ends of the five fingers, five driving ropes Ⅱ7 are arranged on the retractable line device Ⅱ6, and the driving rope Ⅱ7 passes through the guide ring Ⅰ8 and is connected to the finger fixing 3.

[0031] When in use, the trainee fixes the training device on the trainee's palm through the wristband 2, the bottom plate 1 corresponds to the back of the hand, and the five finger fixings 3 are sequentially put on the five fingers of the trainee to complete the wearing of the training device. In this embodiment, the finger fixings 3 are set on the fingertips. Before the training starts, the patient's palm is spread out, and the five finger fixings 3 are close to the guide ring Ⅰ8 on the bottom plate 1. During the training process, the finger fixings 3 are pulled toward the side of the wristband 2 by controlling the retractable wire device Ⅰ4, and the finger fixings 3 drive the fingers to achieve flexion movement, wherein the retractable wire device Ⅰ4 can control the retraction of the five driving ropes Ⅰ5 at the same time, or it can be controlled individually. The wire reel is independently controlled, and its training mode can be set by connecting to the controller. After the finger flexion movement is completed, the wire reel device Ⅱ6 is controlled to drive the driving rope Ⅱ7 to pull the finger fixing part 3 back to the position of the guide ring Ⅰ8 on the bottom plate 1. At this time, the motor in the wire reel device Ⅰ4 is reversed by the pulling force of the finger fixing part 3 or the motor and the wire reel device Ⅱ6 are controlled to reverse synchronously. During the process of the finger fixing part 3 returning to the position of the guide ring Ⅰ8 on the bottom plate 1, the finger is driven to stretch. The wire reel device Ⅱ6 can control the reeling of the five driving ropes Ⅱ7 at the same time, or it can control the reeling individually. Its training mode can be set by connecting to the controller.

[0032] The present invention also includes a pressure plate 9 for pressing the palm side to improve the wearing stability of the training device. In order to facilitate pressing the palm and prevent the pressure plate 9 from affecting the movement of the trainer's fingers, the cross section of the pressure plate 9 is consistent with the figure formed by the ulnar side of the palm, the emotional line, the instinct line and the hand-neck line. Figure 3 As shown, the training device clamps the palm through the base plate 1 and the pressure plate 9 to improve the wearing stability. At the same time, the upper end of the pressure plate 9 only reaches the heart line of the palm to prevent the 2nd to 5th metacarpophalangeal joints from being affected by the pressure plate 9 when the palms are moving in opposition. The end of the pressure plate 9 facing away from the ulnar side of the palm coincides with the instinctive line, or the instinctive line is translated 2-10mm toward the ulnar side of the palm to prevent the movement of the thenar eminence from being hindered when performing thumb opposition training. The pressure plate 9 is located at a corner of the heart line and the instinctive line and is rounded and edged to ensure comfort.

[0033] In order to facilitate wearing, the palm ulnar side of the pressing plate 9 is rotatably connected to the base plate 1 through a rectangular bellows 10. Before use, the pressing plate 9 and the base plate 1 are spread out and laid flat. When the trainee wears it, the back of the hand is aligned with the base plate 1, and then the pressing plate 9 is rotated so that the ulnar side of the rectangular bellows 10 covers one side of the finger, and finally it is clamped and fixed by the pressing plate 9, which improves the wearing stability and simplifies the wearing difficulty.

[0034] In order to facilitate the arrangement of the driving rope Ⅰ5, prevent the driving rope Ⅰ5 from affecting the thumb's palm-to-palm movement, and facilitate the training of the thumb's flexion and extension movement, the pressing plate 9 is located on one side of the hand-neck line and the heart line, and each of the five guide rings Ⅱ11 is provided. The driving rope Ⅰ5 passes through the guide rings Ⅱ11 and is connected to the finger fixing member 3, as shown in FIG. Figure 3 As described, in this embodiment, when the retractable wire device Ⅰ4 retracts the five driving ropes Ⅰ5, the five finger fixing parts 3 are guided to the five guide rings Ⅱ11 located on one side of the heart line, and are cut off at the position of the guide rings Ⅱ11, thereby limiting the amplitude of the finger flexion and extension movement and avoiding the trainee from being strained.

[0035] The base plate 1 includes a back of hand plate 101 and a five-finger plate 102 connected to each other. The thumb plate in the five-finger plate 102 is hinged to the back of hand plate 101. A driving motor 12 for driving the thumb plate to swing around a hinge is provided on the bottom surface of the back of hand plate 101. The driving motor 12 drives the thumb plate to swing around the hinge to a certain amplitude to perform thumb-to-palm training. At the same time, the base plate 1 is made into a palm shape to improve recognition.

[0036] In order to facilitate wearing and prevent the driving rope Ⅰ5, driving rope Ⅱ7 and finger fixing part 3 from getting tangled when the training device is not in use, the finger fixing part 3 is detachably connected to the driving rope Ⅰ5 and / or driving rope Ⅱ7. When the finger fixing part 3 is detachably connected to the driving rope Ⅰ5 and fixedly connected to the driving rope Ⅱ7, in the initial state, the finger fixing part 3 is in the position of the guide ring Ⅰ8, and the five driving ropes Ⅰ5 are reset to the guide ring Ⅱ11 side on the emotional line side, and the positions of the driving rope Ⅰ5, driving rope Ⅱ7 and finger fixing part 3 can be relatively fixed to avoid the phenomenon of rope knotting; when the finger fixing part 3 is detachably connected to the driving rope Ⅱ7 and fixedly connected to the driving rope Ⅰ5, the driving rope Ⅰ5, driving rope Ⅱ7 and finger fixing part 3 can be relatively fixed to avoid the phenomenon of rope knotting; 7 and the finger fixing member 3 are also relatively fixed in position. When the finger fixing member 3 and the driving rope Ⅰ5 and the driving rope Ⅱ7 are detachably connected, before training, the finger fixing member 3 can be firstly put on the five fingers of the trainee, and the palm can be placed on the base plate 1, the wristband 2 can be fastened, and then the driving rope Ⅰ5 and the driving rope Ⅱ7 can be connected to the finger fixing member 3, which greatly improves the wearing convenience. In this embodiment, the driving rope Ⅰ5 or the driving rope Ⅱ7 detachably connected to the finger fixing member 3 has an installation connection portion at its end that is larger than the diameter of the guide ring Ⅰ8 and the guide ring Ⅱ11, so as to prevent the driving rope Ⅰ5 or the driving rope Ⅱ7 from being separated from the guide ring Ⅰ8 and the guide ring Ⅱ11, thereby increasing the connection difficulty.

[0037] Specifically, the detachable connection is a snap connection or a screw connection.

[0038] In order to simplify the wearing difficulty of the wristband 2, a fastener 13 is provided on one side of the wristband 2. In the present embodiment, the fastener 13 is provided at the end away from the ulnar side of the palm. In the initial state, the pressure plate 9 and the side of the wristband 2 having the retractable wire device Ⅰ4 are both flipped to be flush with the bottom plate 1, ensuring that the retractable wire device Ⅰ4 and the driving rope Ⅰ5 are on the same side.

[0039] The present invention also includes a shell covering the driving rope II 7 on the bottom plate 1. The shell is arranged on the bottom side of the bottom plate 1. During training, the training device can be placed on a desktop to improve the training comfort.

[0040] Specifically, the winding and releasing device I4 and the winding and releasing device II6 each include a shell and five motors arranged in the shell, a winding drum is arranged on the motor output shaft, and the driving rope I5 and the driving rope II7 are both connected to the winding drum. The winding drum rotates to wind up or release the driving rope I5 and the driving rope II7.

[0041] Specifically, the finger fixing member 3 is a finger ring or a finger sleeve, which simplifies the installation difficulty and reduces the contact area between the training device and the palm, thereby improving comfort.

Claims

1. A finger flexion and extension training instrument, characterized in that: The invention comprises a base plate (1), a wristband (2), five finger fixing members (3), and a flexion drive device and an extension drive device for driving the finger fixing members (3) to move, wherein the flexion drive device comprises a wire-retracting and releasing device I (4) arranged on the upper surface of the wristband (2), and five driving ropes I (5) connected to the finger fixing members (3) are arranged on the wire-retracting and releasing device I (4); the extension drive device comprises a wire-retracting and releasing device II (6) arranged on the bottom surface of the base plate (1) or the lower surface of the wristband (2), and five guide rings I (8) arranged on the base plate (1) at the lower ends of the five fingers, and five driving ropes II (7) connected to the finger fixing members (3) are arranged on the wire-retracting and releasing device II (6), and the driving ropes II (7) are arranged through the guide rings I (8); It also includes a pressing plate (9) for pressing the palm side; The base plate (1) comprises a back of hand plate (101) and a five-finger plate (102) connected to each other, the thumb plate in the five-finger plate (102) being hinged to the back of hand plate (101), and a driving motor (12) for driving the thumb plate to swing around a hinge is provided on the bottom surface of the back of hand plate (101).

2. The finger flexion and extension training device according to claim 1, characterized in that: The finger fixing member (3) is detachably connected to the driving rope I (5) and / or the driving rope II (7).

3. The finger flexion and extension training device according to claim 1, characterized in that: A buckle (13) is provided on one side of the wristband (2).

4. The finger flexion and extension training device according to claim 1, characterized in that: It also includes a shell covering the driving rope II (7) on the bottom plate (1).

5. The finger flexion and extension training device according to claim 1, characterized in that: The wire-reeling and reeling device I (4) and the wire-reeling and reeling device II (6) both comprise a housing and five motors arranged in the housing. A wire-reeling drum is arranged on the output shaft of the motor. The driving rope I (5) and the driving rope II (7) are both connected to the wire-reeling drum.

6. The finger flexion and extension training device according to claim 1, characterized in that: The finger fixing piece (3) is a finger ring or a finger sleeve.

Images