CN216417705U

CN216417705U - Rehabilitation training device

Info

Publication number: CN216417705U
Application number: CN202122800758.1U
Authority: CN
Inventors: 田恬; 高志军; 周铜; 林杨胜蓝; 华东
Original assignee: Shanghai Shentai Medical Technology Co ltd
Current assignee: Shanghai Shentai Medical Technology Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-05-03
Anticipated expiration: 2031-11-11

Abstract

The utility model provides a rehabilitation training device, including main part and the flexible part that supplies the hand gripping to use, the main part is including the supporting part that is used for spacing hand thumb to use, flexible part sets up in the main part, flexible part with the main part is connected to can extend or contract according to the motion of hand. This rehabilitation training device can carry out the mirror image rehabilitation training of suffering from side hand, and simple structure simultaneously maintains the convenience, still can effectively reduce whole rehabilitation training device's delay nature, has the user experience of higher recovered efficiency and preferred.

Description

Rehabilitation training device

Technical Field

The utility model relates to a medical treatment rehabilitation technical field, in particular to rehabilitation training device.

Background

Mirror image therapy, also known as mirror image visual feedback therapy, was first proposed in 1995 by Ramachandran et al and applied to rehabilitation medical practice and neuroscience research. The treatment method combines mirror image therapy and exercise rehabilitation concept, and can drive the affected side (normal limb part, such as affected hand) to move through the healthy side (normal limb part, such as normal hand) to realize rehabilitation treatment of the affected side. With the development of robots and vision technology in recent years, the introduction and fusion of multi-source stimulation and a mirror image treatment method effectively improve the treatment effect of hands.

The existing mirror image rehabilitation device is mainly a rehabilitation robot, the rehabilitation robot can perform cooperative training of an affected side and a healthy side, but the rehabilitation robot is complex in structure, high in maintenance cost and difficult to maintain, meanwhile, the rehabilitation robot also frequently causes delay of an integral system when performing rehabilitation training, the efficiency of the rehabilitation training of a patient is reduced, and poor user experience is brought.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem that exists among the prior art, the utility model aims to provide a rehabilitation training device can realize the mirror image rehabilitation training to the affected side, and simple structure maintains the convenience simultaneously, can effectively reduce the delay of whole device, has the user experience of higher recovered efficiency and preferred.

In order to achieve the above object, the utility model provides a rehabilitation training device for the grip training of hand, include:

the main body part comprises a supporting part for limiting the thumb of the hand; and the number of the first and second groups,

and a stretchable member for gripping a hand, the stretchable member being provided in the main body and connected to the main body, and the stretchable member being capable of being extended or contracted in accordance with a movement of the hand.

Optionally, the telescopic component includes a transmission rod and an elastic member, the transmission rod is connected with the main body portion in a sliding mode and can be grasped by a hand, one end of the elastic member is connected with the transmission rod, the other end of the elastic member is connected with the main body portion, and the elastic member can extend or contract according to the movement of the transmission rod.

Optionally, the extending direction of the elastic member is the same as the sliding direction of the transmission rod, and the extending direction of the transmission rod is perpendicular to the sliding direction.

Optionally, the rehabilitation training device further comprises a guide rail sliding block assembly, a guide rail of the guide rail sliding block assembly is fixed to the bottom of the main body portion, the transmission rod is connected with a sliding block of the guide rail sliding block assembly, and the transmission rod can drive the sliding block to slide on the guide rail.

Optionally, the telescopic member further includes at least two holding portions for holding the left and right hands, and the at least two holding portions are fixed to the transmission rod.

Optionally, the shape of the hand-held portion matches the shape of a hand other than a thumb.

Optionally, the rehabilitation training device further comprises a first sensor, and at least one of the handheld portions is provided with the first sensor at a position corresponding to each finger.

Optionally, the support portion is a support rod, and the support rod and the transmission rod are arranged in parallel.

Optionally, the rehabilitation training device further comprises at least two brackets for placing the left and right arms, and the brackets are fixed on the bottom of the main body part;

the distances from the transmission rod, the support rod and the bracket to the bottom of the main body part are the same.

Optionally, the rehabilitation training device further comprises a second sensor for detecting the displacement of the extension or contraction of the telescopic member.

Optionally, the main body further includes a limiting member for limiting the telescopic member.

Optionally, the rehabilitation training device further comprises a control unit and a first sensor which are in communication connection, wherein the control unit acquires the holding force value of each finger according to information that the first sensor detects that the telescopic component is subjected to the pressure exerted by each finger; and/or the presence of a gas in the gas,

the hand-holding force measuring device further comprises a control unit and a second sensor which are in communication connection, wherein the control unit acquires a hand-holding force value according to the displacement of the telescopic component detected by the second sensor.

Optionally, the rehabilitation training device further comprises a display unit in communication connection with the control unit, and the display unit is used for displaying the grip value of each finger and/or the grip value of the hand.

The utility model can drive the telescopic parts to extend or contract through the motion of the healthy side hand (namely the normal hand), and drive the affected side hand (namely the abnormal hand) to move through the extension or contraction of the telescopic parts, thereby realizing the synchronous motion of the healthy side hand and the affected side hand, further carrying out the grip strength training on the affected side hand, and having better training effect; meanwhile, the rehabilitation training device is simple in structure and convenient to maintain, delay of the whole rehabilitation training device can be effectively reduced, rehabilitation efficiency of the rehabilitation training device is improved, and better user experience is achieved.

The utility model discloses still can set up on the rehabilitation training device and detect flexible part and receive the first sensor that each finger applyed the pressure value and/or detect the second sensor of the displacement volume of flexible part extension or shrink to the realization is to the grip of suffering from the side hand and the detection of each finger pressure, thereby can provide reference data for mirror image gripping recreation, and can assess the hand rehabilitation state of suffering from the side and the degree of recovery that each indicates.

Drawings

Fig. 1 is a top view of a rehabilitation training device in a preferred embodiment of the present invention;

fig. 2 is a schematic view of a part of a rehabilitation training device under a first observation angle according to a preferred embodiment of the present invention;

fig. 3 is a schematic view of a portion of a rehabilitation training device under a second viewing angle according to a preferred embodiment of the present invention;

fig. 4 is a perspective view of a rehabilitation training device in a preferred embodiment of the present invention;

fig. 5 is a schematic structural diagram of a handheld portion according to a preferred embodiment of the present invention.

In the figure: a telescopic member 1; a transmission rod 11; an elastic member 12; a hand-held portion 13;

a main body part 2; a support portion 21; a support bar 211; a base plate 22; a side wall 23; an opening 24; a fixing member 25; a mounting ring 26; a stopper 27;

a guide rail slider assembly 3; a guide rail 31; a slider 32; a connecting portion 33;

an arm model 4; a tiger's mouth 41; a bracket 5; a second sensor 6; a display unit 7; a camera 8; and an illumination device 9.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships of the illustrated figures, merely to facilitate description and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

As used in this specification, "distal" of a rehabilitation training device generally refers to the end away from the patient; the term "proximal" as opposed to "distal" generally refers to the end of the rehabilitation training device that is closer to the patient.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; may be mechanically coupled, may be electrically coupled or may be in communication with each other; either directly or through an intermediary, may be internal to the two elements or may be in an interactive relationship with the two elements unless specifically limited otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments can be supplemented with each other or combined with each other without conflict.

Fig. 1 is a plan view of a rehabilitation training device in a preferred embodiment of the present invention, fig. 2 is a schematic diagram of a partial structure of the rehabilitation training device in a preferred embodiment of the present invention under a first observation angle, fig. 3 is a schematic diagram of a partial structure of the rehabilitation training device in a preferred embodiment of the present invention under a second observation angle, fig. 4 is a perspective view of the rehabilitation training device in a preferred embodiment of the present invention, and fig. 5 is a schematic diagram of a structure of a handheld portion in a preferred embodiment of the present invention.

As shown in fig. 1 to 4, a preferred embodiment of the present invention provides a rehabilitation training device, which can use a mirror image therapy to perform grip strength training of a hand. The rehabilitation training device comprises a telescopic component 1 for grasping left and right hands and a main body part 2 (such as a box body). Wherein the main body part 2 comprises a supporting part 21 for limiting the thumb of the hand; the extensible member 1 is provided in the main body 2 and connected to the main body 2, and the extensible member 1 can be extended or contracted in accordance with the movement of the hand.

It should be understood that in the present application, the fingers other than the thumb of the hand are used to grip the telescopic member 1, and the telescopic member 1 can be extended or shortened by the gripping, while the thumb of the hand is limited at the position of the support portion 21, which facilitates the gripping. It will also be appreciated that the support portion 21 may be formed integrally with the main body portion 2 or separately therefrom. In the present embodiment, the support portion 21 and the main body portion 2 are separately molded and assembled. Further, the support portion 21 may be provided outside or inside the main body portion 2. To facilitate retention of the support portion 21 to the thumb of the hand, the support portion 21 is preferably disposed at least partially within the main body portion 2.

In actual use, the support portion 21 is used for limiting the thumb of the healthy side (i.e. normal hand) and the thumb of the affected side (i.e. affected hand), and the telescopic component 1 is used for the healthy side hand and the affected side hand to grasp simultaneously. The side-healthy hand refers to the fingers except the thumb; the affected hand refers to the fingers except the thumb. Therefore, when the healthy side hand and the affected side hand are gripped, the telescopic component 1 can be driven to move towards the supporting part 21, and at the moment, the distance between the telescopic component 1 and the supporting part 21 is gradually reduced; when the healthy hand and the affected hand are extended (i.e. the grip is released), the telescopic member 1 can move away from the support 21, and at this time, the distance between the telescopic member 1 and the support 21 gradually increases.

Therefore, the utility model can drive the telescopic part to extend or contract through the motion of the healthy side hand part and drive the affected side hand part to move through the extension or contraction of the telescopic part, thereby realizing the synchronous motion of the healthy side hand part and the affected side hand part, further carrying out the grip strength training on the affected side hand part and having better training effect; meanwhile, the rehabilitation training device is simple in structure and convenient to maintain, delay of the whole rehabilitation training device can be effectively reduced, rehabilitation efficiency of the rehabilitation training device is improved, user experience is better, and mirror image rehabilitation training of the affected hand can be achieved by the rehabilitation training device.

It should be understood that the present application is not limited to the structure of the telescopic member 1 and the support portion 21. The extensible member 1 may be provided in any structure that can be extended and contracted, and only the requirement that power can be transmitted between the affected hand and the healthy hand is satisfied. In some embodiments, the telescopic member 1 has elasticity and can provide elastic force, so that when the telescopic member 1 is stretched or compressed, the telescopic member 1 can provide elastic force, so as to be capable of automatically restoring to the original state in the stretched state (i.e. automatically contracting), or the telescopic member 1 can automatically restore to the original state in the contracted state (i.e. automatically extending), so as to realize the conversion of the telescopic state of the telescopic member 1 under the motion of the hand, in which case the telescopic member 1 can be set to be a spring or a shrapnel or any other elastic structure.

In other embodiments, the telescopic member 1 may also be configured to be manually or automatically restored to the original state after being extended or contracted, for example, a driving device (e.g. a button) capable of driving the telescopic member 1 to move may be provided on the rehabilitation training device, and when the telescopic member 1 needs to be contracted or extended, the driving device can drive the telescopic member 1 to be restored to the original state; alternatively, the extensible member 1 may have an automatic return function to extend or contract the extensible member 1.

The mirror image grip strength training process of the rehabilitation training device is as follows: when the healthy side hand and the affected side hand grasp the telescopic part 1, the affected side hand of the patient often shows abnormal flexor tension, namely has a grasping tendency and cannot be naturally stretched, so that the holding power of the affected side hand is smaller, the telescopic part 1 is mainly driven by the holding power of the healthy side hand to extend or shorten towards the direction close to the thumb of the healthy side hand, meanwhile, the motion of the telescopic part 1 can drive the affected side hand to move towards the direction close to the thumb of the affected side hand, namely, the telescopic part 1 can drive the grasping of the affected side hand; because flexible part 1 can contract by oneself or extend by oneself, perhaps flexible part 1 can contract or extend under drive arrangement's drive, when healthy side hand extends, flexible part 1 can drive sick side hand towards the direction of keeping away from sick side hand thumb and remove, even sick side hand extends, healthy side hand can loosen by oneself this moment, and the synchronous motion of healthy side hand and sick side hand is realized to accessible flexible part 1 so to reach the mesh of carrying out the grip training to sick side hand.

In addition to the above-mentioned synchronous motion of the healthy side hand and the affected side hand, the rehabilitation training device can also realize the independent grip strength training of the affected side hand, i.e. when the rehabilitation training device is used, the affected side hand can also be used to independently grip the telescopic component 1 so as to train the hand gripping ability of the affected side.

In some embodiments, referring to fig. 1 and 4, the main body 2 comprises a side wall 23 and a bottom plate 22, the bottom plate 22 forms the bottom of the main body 2, and the side wall 23 of the main body 2 is preferably screwed to the bottom plate 22; an opening 24 (see fig. 4) is formed in the side wall of the main body 2, and a user can stretch a hand into the main body 2 through the opening 24 to perform rehabilitation training; the main body 2 may further include a plurality of fixing members 25 fixed to the base plate 22; the support portion 21 and/or the telescopic member 1 may be connected with a fixing member 25 to achieve fixation with the main body portion 2. The fixing member 25 may be integrally formed with the base plate 22, or the fixing member 25 may be formed separately from the base plate 22 to fixedly connect the fixing member 25 to the base plate 22.

It should be understood that the present application does not limit the positions of the telescopic member 1 and the supporting portion 21 on the rehabilitation training device, and the telescopic member 1 and the supporting portion 21 only need to be disposed at positions convenient for the hand to grasp. As in one embodiment, the telescopic member 1 may be disposed at the distal end of the rehabilitation training device (i.e. at the end away from the hand), where the health side hand can extend the telescopic member 1 by grasping it; in another embodiment, the telescopic member 1 may be further disposed at the proximal end of the rehabilitation training device (i.e. at the end near the hand), where the health side hand can contract the telescopic member 1 by grasping. In other embodiments, the telescopic member 1 may be multiple, some being arranged at the proximal end of the rehabilitation training device and some being arranged at the distal end of the rehabilitation training device.

Further, the supporting portion 21 can be set as a supporting rod, a supporting block or any structure capable of being connected to the main body portion 2, and the supporting portion 21 only needs to be capable of limiting the thumb of the hand.

Referring to fig. 1, in a preferred embodiment, the telescopic member 1 comprises a transmission rod 11 and an elastic member 12; the transmission rod 11 is connected with the main body part 2 in a sliding mode and can be gripped by hands, one end of the elastic piece 12 is connected with the transmission rod 11, the other end of the elastic piece 12 is connected with the main body part 2, and the elastic piece 12 can extend or contract according to the movement of the transmission rod 11. The arrangement of the transmission rod 11 can enable the hand to more conveniently grasp the telescopic component 1, and enable the healthy side hand and/or the affected side hand to conveniently drive the telescopic component 1 to move, and the elastic component 12 needs to be stretched in the process, and the elasticity of the elastic component 12 needs to be overcome. The elastic part 12 can extend or shorten the telescopic part 1, and specifically, the elastic part 12 can extend under the drive of the fingers of the hand of the patient except the thumb and can automatically contract after the hand of the patient extends. In a preferred embodiment, the other end of the elastic member 12 is connected to the fixing member 25 of the main body 2. In another preferred embodiment, one end of the elastic member 12 can be connected to the transmission rod 11, and the other end is connected to the supporting portion 21, so that the elastic member 12 can be contracted by the fingers of the hand of the patient except the thumb and can be stretched by the hand of the patient.

It should be understood that the present application is not limited to the type of the elastic member 12, and the elastic member 12 may be configured as a spring, an elastic tube or other suitable elastic means. The present application is not limited to the manner of slidably connecting the transmission lever 11 and the main body 2. For example, in some embodiments, a groove can be provided in the bottom plate 22 or the side wall 23, and the transmission rod 11 can be slid in the groove to achieve a sliding connection with the body part 2. In other embodiments, the transmission rod 11 may be slidably connected to the main body 2 by other means.

In a preferred embodiment, the stretching direction of the elastic element 12 is parallel to the sliding direction of the transmission rod 11, and the grip of the healthy lateral hand can be used to drive the transmission rod 11 to move, i.e. the grip of the healthy lateral hand can be transmitted to the affected lateral hand, and the healthy lateral hand and the affected lateral hand can move synchronously, so that the affected lateral hand has a better rehabilitation effect.

It should be understood that the extending and contracting direction of the elastic member 12 is substantially parallel to the sliding direction of the transmission rod 11. It should also be understood that the extending and retracting direction of the elastic member 12 refers to the direction in which the elastic member 12 extends or contracts under the driving of the driving rod 11, and when the elastic member 12 is a spring, the extending and retracting direction of the elastic member 12 is the axial direction of the spring. In this embodiment, the driving rod 11 and the fixing member 25 of the main body 2 are provided with mounting rings 26 (as shown in fig. 3) for connecting the elastic members 12, so that the elastic members 12 can be fixedly connected with the driving rod 11 and the fixing member 25, respectively, and the extending and retracting directions of the elastic members 12 can be conveniently set to be parallel to the sliding direction of the driving rod 11.

More preferably, the extending direction of the transmission rod 11 is perpendicular to the sliding direction, so that when the healthy lateral hand and the affected lateral hand grasp the transmission rod 11 at the same time, the healthy lateral hand can drive the transmission rod 11 to generate a larger displacement amount, and meanwhile, the transmission rod 11 can also drive the affected lateral hand to generate a larger displacement amount when grasping, so as to ensure that the affected lateral hand has a better grasping training effect.

Preferably, the rehabilitation training device further comprises a guide rail slider assembly 3, the guide rail slider assembly 3 comprises a guide rail 31 and a slider 32, the guide rail 31 is fixed on the bottom plate 22, the transmission rod 11 of the telescopic component 1 is connected with the slider 32, and the transmission rod 11 can drive the slider 32 to slide on the guide rail 31. So set up, the sliding connection of realization extensible part 1 and bottom plate 22 that can be convenient, when being good for side hand gripping extensible part 1, the hand of being good for side can drive extensible part 1 and slide on bottom plate 22.

In the present embodiment, referring to fig. 1 to 3, the guide rail slider assembly 3 is a linear guide rail assembly, that is, the shape of the guide rail 31 is a straight line, and the extending and retracting direction of the elastic element 12 is parallel to the guide rail 31, so that the moving direction of the transmission rod 11 is the same as the moving direction of the slider 32 when the elastic element 12 extends or contracts, and the movement direction of the extensible member 1 can be limited by the sliding direction of the slider 32 on the guide rail 31 (i.e., the extending direction of the guide rail 31), thereby ensuring that the affected hand and the healthy hand can move synchronously, avoiding the movement direction of the extensible member 1 from being changed when the extensible member extends or contracts, and enabling the affected hand to have a good rehabilitation effect.

This application does not limit the quantity of guide rail sliding block set 3, in this embodiment, refer to fig. 1 and fig. 3 and show, the rehabilitation training device includes 3 parallel arrangement's guide rail sliding block set 3, and 3 sliders 32 in 3 guide rail sliding block set 3 can be connected with the one end of extensible part 1 jointly to make extensible part 1 can fix firmly and steadily stretch out and draw back. Of course, in other embodiments, the number of the guide rail slider assemblies 3 may be set to 1, 2, 4, 5 or other desired numbers.

As shown in fig. 1 and 5, the telescopic member 1 preferably further comprises at least two hand-holding portions 13 for holding the hands, and the at least two hand-holding portions 13 are preferably fixed on the transmission rod 11 and can be used for grasping the affected hand and/or the healthy hand. Because the length of each finger in the hand part is different except the thumb, when the affected hand part directly grips the telescopic component 1, each finger in the affected hand part except the thumb cannot simultaneously and effectively apply pressure to the telescopic component 1, and the training effect of one or more fingers in the affected hand part is poor. In the application, the hand-holding part 13 is arranged to enable all the fingers except the thumb to provide a certain holding force to the telescopic member 1 when the affected hand is grasping (i.e. the pressure applied to the telescopic member 1 by all the fingers in the affected hand when the affected hand is grasping); when the affected hand is extended, the hand-held portion 13 can provide a certain extension force to the fingers of the affected hand except the thumb (i.e. the pressure applied to the fingers of the affected hand by the hand-held portion 13 when the affected hand is extended), so that the fingers of the affected hand except the thumb can be effectively rehabilitated and treated more fully and effectively.

Preferably, in order to improve the comfort level of the hand holding of the patient, the shape of the hand holding part 13 is matched with that of the hand, wherein the shape of the hand holding part 13 can be set by referring to the human body size standard of the adult in China.

More preferably, the rehabilitation training device further includes a first sensor for detecting the pressure applied by each finger to the hand-held portion 13, and at least one of the hand-held portions is provided with the first sensor (not shown) at a position corresponding to each finger. In order to make the pressure measurement of each of the fingers of the hand other than the thumb more accurate, the first sensor is preferably disposed at the fingertip position of each finger. The rehabilitation training device can obtain the participation degree of each finger in the hand at the affected side when the finger is gripped by comparing the pressure of each finger at the affected side with the pressure of each finger at the healthy side, and can also evaluate the recovery degree of each finger in the hand at the affected side. Preferably, the hand-held portion 13 may be attached with strain gauges at positions corresponding to the fingertips of the respective fingers, respectively, to detect the pressure of the respective fingers. The present application is not limited to the type of first sensor, which includes, but is not limited to, a pressure sensor.

Referring to fig. 1, the support portion 21 preferably includes a support rod 211, and the support rod 211 may be disposed parallel to the transmission rod 11 to facilitate grasping of the hand of the patient. Fig. 1 shows the positions of the arm model 4 on the healthy side or the affected side when gripped and the position of the tiger's mouth 41 of the hand. In one embodiment, in order to facilitate grasping of the support rod 211 and the transmission rod 11 by the affected or healthy hand, the support rod 211 is preferably disposed on the side of the transmission rod 11 away from the elastic member 12, and the distance between the support rod 211 and the transmission rod 11 is smaller than the distance between the tiger's mouth 41 of the hand and the tip of the finger of the hand except the thumb. Of course, in other embodiments, the support rod 211 can be disposed on the side of the transmission rod 11 close to the elastic member 12.

When healthy side hand or sick side hand simultaneously gripping bracing piece 211 and transfer line 11, the bracing piece 211 can block the position of healthy side hand and the tiger's mouth 41 of sick side hand to can guarantee that healthy side hand and sick side hand can grasp in step and extend, in order to realize the grip training to sick side hand. When the transmission rod 11 is provided with the hand-held part 13, the healthy lateral hand part and the affected lateral hand part can synchronously grasp the hand-held part 13 on the transmission rod 11.

In one embodiment, as shown in fig. 1 and 4, the rehabilitation training device further comprises at least two brackets 5, wherein the at least two brackets 5 are fixed on the bottom plate 22 of the main body 2 and used for placing the arm on the healthy side and the arm on the affected side, and the transmission rod 11, the support rod 211 and the brackets 5 have the same distance to the bottom 22 of the main body 2 (i.e. the height of the transmission rod 11, the height of the support rod 211 and the height of the brackets 5 are the same in the vertical direction), so that the arm on the affected side and the hand or the arm on the healthy side and the hand can be kept on the same horizontal plane, and the arm on the affected side and the arm on the healthy side can be comfortably placed on the brackets 5 and conveniently grasped. It should be understood that the same distance as described above refers to approximately the same distance, not the absolute same distance. In actual use, the driving rod 11 and the supporting rod 211 may be slightly lower than the bracket 5.

Preferably, the rehabilitation training device further comprises a connecting part 33, one end of the connecting part 33 is connected with the transmission rod 11, and the other end of the connecting part 33 is connected with the sliding block 32. The rehabilitation training device preferably further comprises a second sensor 6 for detecting the amount of displacement of the telescopic member 1 in extension or contraction. The shape of the connecting portion 33 is not limited in the present application, and the connecting portion 33 may be a circle, a square, or other shapes for connecting the transmission rod 11 and the slider 32. The second sensor 6 is not limited in kind by the present application, and the second sensor 6 includes, but is not limited to, a distance sensor.

Referring to fig. 1 to 3, in the present embodiment, the connecting portion 33 may be preferably disposed as a baffle facing the fixing member 25, and the second sensor 6 may include a transmitting end and a receiving end, wherein the transmitting end may be disposed on the fixing member 25, the transmitting end is preferably disposed on a side of the mounting ring 26 close to the bottom 22 of the main body portion, and the receiving end may be disposed on the baffle, so as to enable the second sensor 6 to detect the displacement amount of the extension or contraction of the telescopic member 1. Of course, in other embodiments, the transmitting end and the receiving end of the second sensor 6 can be arranged interchangeably, or other types of sensors can be used for detection.

Further, the second sensor 6 may detect a distance between the transmitting end and the receiving end before the driving rod 11 moves and set to X₁And the distance between the transmitting end and the receiving end can be detected and set to X when the transmission rod 11 reaches the maximum displacement₂Since the driving rod 11 can drive the connecting portion 33 to move synchronously, the displacement of the driving rod 11 is the displacement of the extensible member 1, i.e. the displacement of the elastic member 12, the displacement of the extensible member 1 is set to be X, and the displacement X of the extensible member 1 extending or contracting when the patient finishes one-time hand grasping is X₂-X₁And X is the displacement of the elastic member 12 in extension or contraction. When the elastic member 12 is a spring, the elastic force F of the spring is KX, where K is the elastic stiffness of the spring. Since the elastic force of the elastic member 12 and the friction force of each member of the extensible member 1 must be overcome when the healthy or affected hand grasps the patient, the grasping force of the healthy or affected hand is the sum of the elastic force of the elastic member 12 and the friction force of each member of the extensible member 1. When the healthy or affected hand is stretched, the elastic member 12 is contracted to overcome the muscular tension of the affected hand and the friction of each member in the extensible member 1, or the stretching force of the healthy hand (i.e., the resistance of the healthy hand to stretching) and the friction of each member in the extensible member 1. Therefore, when the extension training is performed only on the affected hand and the healthy hand is not involved, the muscle tension of the affected hand is the difference between the elastic force of the elastic member 12 and the frictional force of the members of the extensible member 1. Should be takenIt is understood that when the healthy side hand drives the affected side hand to perform the grip strength training, the grip strength value obtained by the second sensor 6 is the grip strength value of the healthy side hand of the patient.

Referring to fig. 1 and 2, the main body 2 further includes a stopper 27 for stopping the telescopic member 1, the stopper 27 being capable of stopping when the telescopic member 1 is contracted, and the stopper 27 being used for limiting a pulling force required when the telescopic member 1 is stretched. Because the required pulling force of flexible subassembly 1 when stretching under the different extension displacement volume is different (if when the elastic component 12 of extensible part 1 sets up to the spring, the required pulling force of spring secondary tension is directly proportional with its displacement volume), for making the holding power of healthy side hand or sick side hand and the required pulling force of extensible part 1 match, the hand of healthy side or sick side can drive extensible part 1 and extend or contract, so the position of accessible locating part 27 restriction extensible part 1 to make this rehabilitation training device can carry out the holding power training of patient's hand.

In the present embodiment, referring to fig. 1, the stoppers 27 may be provided on the fixing members 25 at both sides of the main body 2, and the stoppers 27 are preferably provided at one side of the transmission rod 11 facing the elastic member 12 to restrict the movement of the transmission rod 11 when the transmission rod 11 is contracted and to allow the transmission rod 11 to move to a position convenient for grasping of the healthy or affected hand. The position of the limiting member 27 is not limited in the present application, and in an embodiment, one limiting member 27 may be disposed on both sides of the transmission rod 11, so as to limit the transmission rod 11 more accurately. In another embodiment, the limiting member 27 may be disposed at other positions on the main body 2, such as on the top surface of the main body 2, the sidewall 23, or the bottom 22 of the main body 2, in which case the limiting member 27 may be integrally formed with the main body 2, or may be formed separately from the main body 2 and fixedly connected thereto; in other embodiments, the limiting member 27 may be a component separately disposed outside the main body 2, and in this case, the limiting member 27 may be assembled on the main body 2 to limit the transmission member 24. The structure of the limiting part 27 is not limited in the present application, and the limiting part 27 may be configured as a limiting piece, a limiting block, a limiting strip or other structures capable of limiting.

Further, the rehabilitation training device further comprises a control unit (not shown) and a display unit 7, wherein the first sensor, the second sensor 6 and the display unit 7 are all in communication connection with the control unit. The display unit 7 is used for displaying the holding force value of each finger and/or the holding force value of the hand. Preferably, the display unit 7 may also display the elastic force of the elastic member 12. In some embodiments, the control unit and display unit 7 may be provided on the rehabilitation training device (e.g. on the main body portion 2) to facilitate transfer of the rehabilitation training device; of course, in other embodiments, the control unit and the display unit 7 may be provided separately outside the rehabilitation training device (e.g., a display may be placed outside the rehabilitation training device) for the patient to view.

Preferably, the rehabilitation training device further comprises a camera 8 and an illuminating device 9, wherein the camera 8 is used for monitoring the motion or position of the hand of the patient in the main body part 2 in real time, and the hand position of the patient can be displayed on the display unit 7, so that an operator can observe the stretching condition or the operating condition of the hand of the patient and know the process of the hand grasping training of the patient. The lighting device 9 is used for lighting the inside of the main body part 2, and preferably, the lighting device 9 can be set as a lighting lamp, so that the camera 8 can conveniently collect images in the main body part 2, and the definition of the images can be ensured, so that an operator can conveniently observe the images.

In a non-limiting embodiment, the training process that the rehabilitation training device can perform includes the following steps:

1. performing mirror image rehabilitation training of the affected hand

1) The patient looks at the display unit 7 at the front part of the main body 2, the patient puts the arm at the healthy side and the arm at the affected side into the main body 2 through the opening 24, and puts the arm at the healthy side or the arm at the affected side on the bracket 5 (see fig. 1);

2) closely contacting the tiger's mouth 41 of the healthy-side hand and the tiger's mouth 41 of the affected-side hand with the support bar 211, and placing the fingers of the healthy-side hand except the thumb and the fingers of the affected-side hand except the thumb at the corresponding positions of the handheld part 13; in order to make the motion of the affected hand and the healthy hand consistent, the hand can be tied and fixed with the hand-held part 13 by bonding.

3) The patient simultaneously carries out grasping training on the healthy hand and the affected hand according to the voice and game prompt of the display unit 7; because the grip of the affected hand is small, the transmission rod 11 is mainly moved by the grip of the healthy hand, the healthy hand can drive the transmission rod 11 to move, and the transmission rod 11 can drive the affected hand to synchronously grasp. At this time, the elastic member 12 is stretched by the grip force of the healthy-side hand and the affected-side hand, and stores the elastic force.

4) After the grasping movement of the healthy side hand and the affected side hand is completed, the extension training of the healthy side hand and the affected side hand is performed, the patient relaxes the healthy side hand and the affected side hand according to the voice and the game prompt of the display unit 7, and at the moment, the elastic force of the elastic element 12 is released to contract. The elastic member 12 can drive the transmission rod 11 to contract, and drive the healthy hand portion and the affected hand portion to return to the initial state (i.e. the state before grasping) through the transmission member 11, thereby realizing the extension of each finger in the affected hand portion.

In the grasping training process of the affected hand, the second sensor 6 can acquire the displacement of the extension of the telescopic member 1 (i.e. the displacement of the elastic member 12) and send the displacement to the control unit, and the control unit can calculate the grip strength values of the affected hand and the healthy hand and store the grip strength values of the affected hand and the healthy hand into the database to provide data support for the grip strength evaluation of the affected hand. Meanwhile, the participation condition of each finger in the affected hand part in the grasping training process can be accurately known through the first sensor, and the recovery condition of each finger in the affected hand part is judged by comparing the pressure of each finger in the healthy hand part and the affected hand part; meanwhile, the pressure values of the fingers in the healthy hand part and the affected hand part can be stored in the database to provide data support for the interactive game.

During the stretching training of the affected hand, the second sensor 6 can obtain the stretching force of the healthy hand and the muscle tension of the affected hand when the elastic member 12 is contracted, and if the healthy hand is relaxed, the second sensor 6 mainly obtains the muscle tension of the affected hand. Similarly, the participation of each finger in the affected hand can be accurately known through the first sensor in the stretching training process, and the recovery condition of each finger in the affected hand can be judged by comparing the pressure of each finger in the healthy hand and the affected hand.

2. Grip evaluation of affected side hand

When the grip evaluation of the affected hand of the patient is needed, the patient can only stretch the affected hand into the main body part 2 through the opening 24 according to the prompt of the display unit 7, place the affected arm on the bracket 5, and simultaneously make the tiger mouth 41 of the affected hand tightly contact with the support rod 211, and place the fingers of the affected hand except the thumb at the corresponding position of the hand-held part 13;

the patient can carry out the gripping training of affected side hand according to the suggestion of display element 7, and affected side hand needs certain grip to pull elastic component 12 when gripping, and second sensor 6 also can send the displacement volume (the displacement of elastic component 12 promptly) of extensible member 1 extension to the control unit, and the control unit can calculate the grip value of affected side hand to compare the grip value of affected side hand with the grip value of healthy side hand, can assess the degree of recovering of affected side hand grip. At the moment, the first sensor can accurately acquire the participation condition of each finger when the hand on the affected side finishes the gripping training independently, so that the recovery condition and the recovery difference of the grip strength of each finger in the hand on the affected side can be known.

The control unit can also display the holding force value of the healthy hand, the holding force value of the affected hand and the displacement of the telescopic component 1 on the display unit 7, and at the moment, the operator can directly acquire the recovery degree of the holding force of the affected hand of the patient on the display unit 7.

3. Muscle tone assessment of affected hand

When muscle tension evaluation needs to be performed on the affected hand of the patient, the patient can only stretch the affected hand into the main body part 2 through the opening 24 according to the prompt of the display unit 7, place the affected arm on the bracket 5, meanwhile, make the tiger mouth 41 of the affected hand in close contact with the support rod 211, and place the fingers of the affected hand except the thumb at the corresponding position of the handheld part 13;

the patient can perform the stretching training of the affected hand according to the prompt of the display unit 7, and the initial state of the affected hand stretching (i.e. the grasping state of the affected hand) can be realized by using the healthy hand or the external device. During the extension training of the affected hand, the elastic part 12 contracts to drive the affected hand to extend, the second sensor 6 can also send the displacement (namely the displacement of the elastic part 12) of the telescopic part 1 contraction to the control unit, the control unit can calculate the muscle tension of the affected hand, and the muscle tension of the affected hand is compared with the extension force of the healthy hand, so that the recovery degree of the muscle tension of the affected hand can be evaluated. At the moment, the first sensor can accurately acquire the participation condition of each finger when the extension training of the affected hand is independently completed, so that the recovery condition and the recovery difference of the muscle tension of each finger in the affected hand can be known.

It should be understood that the muscle tension evaluation of the affected hand is an extended function of the rehabilitation training device, and the affected hand can be used with the motor to adjust the initial position of the elastic member 12 during the muscle tension evaluation.

The type of the control unit is not particularly limited in the present application, and may be hardware for executing logical operations, such as a single chip, a microprocessor, a Programmable Logic Controller (PLC) or a Field-Programmable Gate Array (FPGA), or a software program, a function module, a function, an Object library (Object Libraries) or a Dynamic Link library (Dynamic-Link Libraries) for implementing the above functions on a hardware basis. It should be known how the communication between the control unit and the other devices is implemented in detail.

In summary, the utility model can drive the telescopic part to extend or contract through the motion of the healthy side hand part and drive the affected side hand part to move through the extension or contraction of the telescopic part, thereby realizing the synchronous motion of the healthy side hand part and the affected side hand part, further carrying out the grip strength training on the affected side hand part, and having better training effect; meanwhile, the rehabilitation training device is simple in structure and convenient to maintain, delay of the whole rehabilitation training device can be effectively reduced, rehabilitation efficiency of the rehabilitation training device is improved, and better user experience is achieved.

The utility model discloses still can set up on the rehabilitation training device and detect flexible part 1 and receive the first sensor that each finger applyed the pressure value and/or detect the second sensor 6 that the displacement volume that flexible part 1 extension or shrink was used to realize the detection to the grip of suffering from the side hand and each finger pressure, thereby can provide reference data for mirror image gripping recreation, and can assess the hand rehabilitation state of suffering from the side and the degree of recovery that each finger.

The above description is only for the preferred embodiment of the present invention, and not for any limitation of the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure all belong to the protection scope of the present invention.

Claims

1. A rehabilitation training device for grip training of a hand, comprising:

2. The rehabilitation training device of claim 1, wherein the telescoping member comprises a drive rod and a resilient member; the transmission rod is connected with the main body part in a sliding mode and can be grasped by a hand; one end of the elastic piece is connected with the transmission rod, and the other end of the elastic piece is connected with the main body part; the elastic member can be extended or contracted according to the movement of the transmission rod.

3. The rehabilitation training device of claim 2, wherein the elastic member extends in the same direction as the driving rod slides, and the driving rod extends in a direction perpendicular to the sliding direction.

4. The rehabilitation training device of claim 2, further comprising a rail slider assembly, wherein the rail of the rail slider assembly is fixed to the bottom of the main body portion, and wherein the transmission rod is connected to the slider of the rail slider assembly, and wherein the transmission rod is capable of driving the slider to slide on the rail.

5. The rehabilitation training device of claim 2, wherein said telescoping member further comprises at least two hand grips for gripping by the left and right hands, at least two of said hand grips being secured to said drive rod.

6. The rehabilitation training device of claim 5, wherein the hand-held portion has a shape that matches a shape of a hand other than a thumb.

7. The rehabilitation training device of claim 5, further comprising a first sensor, at least one of the hand-held portions being provided with the first sensor at a position corresponding to each finger.

8. The rehabilitation training device of claim 2, wherein the support portion is a support bar, and the support bar is disposed parallel to the drive rod.

9. The rehabilitation training device of claim 8, further comprising at least two brackets for receiving the left and right arms, said brackets being secured to the bottom of said body portion;

10. The rehabilitation training device of claim 1, further comprising a second sensor that detects the amount of displacement of the telescoping member in extension or retraction.

11. The rehabilitation training device of claim 1, wherein the body portion further comprises a stop for stopping the telescoping member.

12. The rehabilitation training device of claim 1, further comprising a control unit and a first sensor, wherein the control unit is in communication connection with the first sensor, and the control unit is used for acquiring the holding force value of each finger according to the information that the first sensor detects that the telescopic component is subjected to the pressure exerted by each finger; and/or the presence of a gas in the gas,

13. The rehabilitation training device of claim 12, further comprising a display unit in communication with the control unit, the display unit configured to display a grip value of each finger and/or a grip value of a hand.