KR102117521B1 - Upper limbs rehabilitation training device using virtual reality (VR) climbing exercise - Google Patents

Abstract

The present invention relates to an upper limb rehabilitation training device using virtual reality (VR) climbing exercise, which performs rehabilitation training of the shoulder through climbing easily performed even at home by applying a VR technology without visiting specialized facilities having an artificial rock wall, and performs diagnosis and instruction through measured values using various sensors.

Description

Upper limbs rehabilitation training device using virtual reality (VR) climbing exercise}

The present invention relates to a rehabilitation exercise system, and in detail, by applying virtual reality technology without visiting a specialized facility equipped with an artificial rock wall, rehabilitation training of the shoulder through climbing can be easily performed at home and the like, and measurement values using various sensors It relates to the upper limb rehabilitation training device using a virtual reality (VR) climbing exercise that can be diagnosed and directed using.

Virtual reality technology is a technology that enables users to experience life in a virtual environment created by a computer, and the experience is achieved using a head mounted display (HMD), a display device mounted on the head.

Content that applies virtual reality technology to sports has been grafted into various sports and rehabilitation fields in recent years in a way to provide exercise effects to subjects in the form of an initial bicycle or treadmill, and its scope has been greatly expanded.

In recent years, therapeutic climbing using artificial rock climbing in Europe has been expanded to include post-surgery rehabilitation, senile disease, neurological disease, and psychological disease. It has been reported to be effective in improving mobility.

In addition, the therapeutic climbing action is effective for increasing the muscle activity of each segment, and as a result of examining the change in the muscle activity of the shoulder according to the position of holding the holder on the climbing wall, a position parallel to that of holding and maintaining a position higher than the shoulder height The study has been actively carried out, such as holding the holder of the shoulder muscle activity is higher.

Rehabilitation exercise is not just a muscle-strengthening exercise, but a treatment exercise. It reduces swelling and pain through therapeutic exercise, restores the damaged nervous system and restores the sense of sensation, and the range of motion of the joint through biomechanical analysis. Widens, balances the body and improves muscle strength.

Especially in the treatment of shoulder muscles, such as ruptured patients with rotator cuff, even if the surgery is good, the weak muscles cannot be made into normal muscles if the rehabilitation exercise is poor. Although one climbing rehabilitation is attracting attention, there are spatial and temporal limitations that can be enjoyed and steadily, such as the professional facilities equipped with artificial rock wall facilities, and the limitations of manpower who can see and guide climbing movements.

Republic of Korea Patent Publication No. 10-2013-0061538 (2013.06.11)

The present invention was created to solve the above problems, and the object of the present invention is to diagnose a shoulder through climbing easily at home and the like by applying virtual reality technology without visiting a hospital or a specialized facility equipped with an artificial rock wall. It is to provide an upper extremity rehabilitation device using a virtual reality (VR) climbing exercise in which rehabilitation can be performed.

For the above purposes, the present invention is worn on the subject's head, an HMD unit having a direction sensor for measuring the movement of the subject's head and a display for outputting the applied image content by reflecting the measurement results of the direction detector ; A plurality of handle parts having a fixing part for fixing to a ceiling or a wall, a gripping handle and a pressure sensor for detecting gripping of the handle; A storage unit in which image content including a map image that directs a subject to take a specific posture while holding a handle and a virtual image that implements climbing as a first person view is stored, and a map image or virtual image according to mode selection is recalled. A control unit which is applied to a display but has a synchronization unit that reflects the detection result of the pressure sensor to the applied image content; It is characterized by consisting of.

At this time, it is attached to the shoulder portion of the subject, a wearing part having an EMG sensor for measuring EMG and a motion detection unit for measuring the inclination of the front, rear, left and right of the subject's body; Further comprising, it is preferable that the synchronization unit is configured to reflect the measurement results of the motion detection unit to the applied video content.

In addition, a vibration stimulation unit is installed on the handle portion or wearing portion to generate vibration; It is preferable that the control unit further includes a feedback unit that operates the vibration stimulation unit as the measurement results of the EMG sensor and the motion detection unit fall within a set range in response to the applied map image.

In addition, the wearing unit is worn on the upper body and both arms of the subject, respectively, and reconstructing the subject's motion through the measurement results of the EMG sensor, the pressure sensor, and the motion detection unit, and comparing the applied map image with a diagnostic unit for feedback; It is preferable to further include.

In addition, the map image and the virtual image is provided for each level, the control unit preferably further includes a level management unit for applying the map image and the virtual image according to the level of each subject by applying the feedback through the diagnostic unit.

Through the present invention, rehabilitation and diagnosis can be performed on the shoulder at home without visiting a hospital or a facility equipped with an artificial rock wall. have.

In addition, through the principle of therapeutic climbing, static and dynamic muscles are alternately used through the afferent and centrifugal movements required for the activation of the shoulder muscles, and the continuous function of the muscles within the closed chain can be promoted. It is possible to improve the overall sense of equilibrium of the musculoskeletal system due to the promotion of the body's ability to control gravity and stability through extensibility.

In addition, three-dimensional rehabilitation exercises can be achieved by imparting pressure and extensibility to connective tissues such as tendons and joint capsules as well as muscles.

1 is a conceptual diagram of the present invention,
Figure 2 is a block diagram showing the configuration and connection relationship according to an embodiment of the present invention,
3 is a state diagram showing the use of the electrode attached according to an embodiment of the present invention.

Hereinafter, the configuration of the upper extremity rehabilitation training apparatus using the virtual reality (VR) climbing exercise of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of the present invention, the present invention is to provide an effective shoulder rehabilitation exercise through virtual climbing, but provides a climbing environment close to the actual without artificial rock wall facilities for climbing in the home or various indoor environments Support.

Figure 2 is a block diagram showing the configuration and connection relationship according to an embodiment of the present invention, the present invention is a configuration for virtual climbing and shoulder exercise HMD unit 110, the handle unit 120, and the wearing unit 130 ), A vibration stimulation unit 140, and a control unit 150.

The HMD unit 110 is a head mount display for a virtual reality (VR) experience, and is worn on a subject's head to output an image. In detail, the direction detecting unit 111 and the display ( 112).

The direction detecting unit 111 is configured to recognize the direction in which the subject views the subject's head by measuring the movement of the subject's head, that is, implemented through various sensors capable of measuring three-axis movement.

The display 112 is located in front of the eyes of the subject inside the HMD unit 110 to output the authorized image content, that is, a VR image, but reflects the measurement result of the direction detecting unit 111 to display the image corresponding to the subject's gaze. Output and build a VR environment.

The handle portion 120 has a fixed portion 121, a handle 122, and a pressure sensor 123 in a detailed configuration in a configuration that can be conveniently installed and dismantled in response to a conventional artificial rock wall.

The fixing part 121 is a structure for fixing the handle part 120 to the ceiling or wall of a facility, and includes screws or anchor bolts, hooks, and the like to be installed and dismantled in various places.

If the place where the handle portion 120 is to be installed is a wooden wall, fixing may be performed using a bolt or the like of a certain size or more, and in the case of a concrete wall, fixing may be performed through an anchor bolt.

In addition, the fixing part 121 is composed of a rope with a hook formed at the end, and a separate iron bar type stand with a cross bar at the top is installed adjacent to the wall, and the hook is supported so that the installation is possible without damaging the wall. It is possible.

A pressure sensor 123 for detecting a grip of the handle 122 is installed at a lower end of the fixing part 121 along with a gripable handle 122.

In the accompanying drawings, a plurality of handles 120 are shown installed on the wall, and basically provided in plural in response to the virtual climbing implementation, but simply from at least two to more than two corresponding to both arms. It may be provided in a number suitable for the environment.

Figure 3 is a state of use showing the appearance of the electrode according to an embodiment of the present invention.

The wearing part 130 is a configuration for supporting the subject to grasp the motion while wearing the upper body, to make feedback as needed, and to more effectively perform rehabilitation, and the EMG sensor 131 in detail. And a motion detection unit 132 and a vibration stimulation unit 140.

The EMG sensor 131 is a sensor for grasping the electrical active state of the muscle in order to know the state of the muscle, and is attached to the shoulder portion of a subject who is rehabilitated through the present invention to change the muscle's response to nerve stimulation within the muscle. That is, the EMG is measured.

That is, since the muscle is controlled by the nerve, and a minute electric current always flows to the muscle itself, it is identified as an electrode attached to the skin and recorded by the EMG sensor 131, so it is possible to know whether the muscle is working properly.

The motion detection unit 132 is configured to measure the inclination of the front, rear, left and right of the subject's body while being worn on the subject's body, and various sensors capable of measuring three-axis movement, such as the direction detecting unit 111 mentioned above, are measured. It is implemented to measure the subject's body tilt during climbing.

The wearing part 130 is basically composed of a belt that can be wrapped diagonally across the waist or upper body of the subject, and is fixed. Specifically, each of the upper body and both arms of the subject is able to grasp the movement of both shoulder muscles. It is preferably configured to be worn so that the movement of both arms as well as the tilt of the upper body can be grasped.

The control unit 150 is a configuration that performs a rehabilitation exercise by exchanging signals and data through communication with the HMD unit 110, the handle unit 120, and the wearing unit 130. A synchronization unit 152, a feedback unit 153, a diagnostic unit 154, and a level management unit 155 are provided.

In this case, a wired method may be applied to communicate with the HMD unit 110, the handle unit 120, and the wearing unit 130, but through the short-range wireless communication module, while reducing the discomfort of movement, it is possible to increase ease of use and realism. In order to prevent the purpose of the invention from being blurred by using such a communication technique, a detailed description is omitted.

In the storage unit 151, image content including a map image that instructs a target person to take a specific posture while holding the handle unit 120 and a virtual image that implements climbing as a first person view is stored in the training mode. Provide necessary content accordingly.

That is, in the present invention, two modes are provided to allow a target to be selected, and this can be divided into an operation map mode in which a target is followed by presenting a specific action and a virtual mode providing a virtual climbing environment.

Correspondingly, the map image refers to an image that leads the subject to check the condition of the shoulder muscles and to perform the treatment operation by following the same motion as suggested, and the virtual image feels the same or similar to the actual climbing of the subject in the VR environment. Refers to an image of actual climbing taken in the first person view.

The synchronization unit 152 is configured to apply a map image or a virtual image according to the mode selection of the subject to the display 112, and the detection result of the pressure sensor 123 provided in the handle unit is applied to the applied image content. Will reflect.

To this end, among the virtual images, it is necessary to install the handle unit 120 in correspondence with the position of a virtual structure that can support the hand or foot, and the pressure sensor ( Through 123), an image of a part of the hand gripping a rock wall of a target position among the virtual images is additionally implemented upon detection.

In addition, the synchronization unit 152 reflects the measurement result of the motion detection unit 132 to the applied image content, so that the virtual image can also be changed correspondingly when the subject's upper body approaches the wall or moves away from the wall. Is ordered.

In addition, in the present invention, a vibration stimulation unit 140 capable of applying vibration stimulation to the handle unit 120 or the wearing unit 130 may be installed. The vibration stimulation unit 140 is provided with an electric motor capable of generating vibration through an eccentric shaft, and is configured to apply vibrations of various patterns, and can provide various effects according to stimulation of muscles, including feedback according to the current operation. .

Specifically, the feedback unit 153 responds to the applied map image by operating the vibration stimulation unit 140 as the measurement results of the EMG sensor 131 and the motion detection unit 132 fall within a set range. Motivation and achievement can be given by letting you recognize that is taking the correct action.

The diagnosis unit 154 is configured to reconstruct the subject's motion through the measurement results of the EMG sensor 131, the pressure sensor 123, and the motion detection unit 132, and then compare the motion with the applied map image to provide feedback.

To this end, the diagnostic unit 154 is basically a reference value for determining when the subject has taken the correct action in response to the map image, the EMG sensor 131, the pressure sensor 123, and the motion detection unit 132 The measurement reference value is stored in advance, and the measurement results of the electromyography sensor 131, the pressure sensor 123, and the motion detection unit 132 are compared with these reference values to reconstruct the subject's motion, and the result is fed back to the subject to correct the motion. Feedback will be given as to whether or not and what part is lacking.

In addition, map images and virtual images stored in the storage unit according to various subjects are provided for each level, and the level management unit applies the feedback information through the diagnosis unit 154 to map images according to the level of each subject. And by authorizing the virtual image, systematic rehabilitation training tailored to the subject can be performed.

Through the present invention, it is possible to effectively perform rehabilitation treatment by preventing excessive muscle use and excessive shoulder muscle rotation by limiting the position of the handle portion. It also has a positive effect through stimulation.

In addition, by increasing the tension through muscle activation around the shoulder joint through a climbing motion, it is possible to prevent damage that may occur during muscle contraction or excitation contraction, and reduce the occurrence of pain through reduction of proper movement of the muscle around the shoulder joint.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

110: HMD unit 111: direction detection unit
112: display 120: handle
121: fixing portion 122: handle
123: pressure sensor 130: wearing part
131: EMG sensor 132: motion detection unit
140: vibration stimulation unit 150: control unit
151: storage unit 152: synchronization unit
153: feedback unit 154: diagnostic unit
155: level management department

Claims (5)

An HMD unit equipped with a direction sensing unit 111 that is worn on a subject's head and measures the movement of the subject's head, and a display 112 that outputs the applied image content by reflecting the measurement result of the direction detection unit 111 (110);
A plurality of handle parts 120 having a fixing part 121 for fixing to a ceiling or a wall, a gripping handle 122 and a pressure sensor 123 for detecting gripping of the handle 122;
A wearing part 130 having an electromyography sensor 131 attached to a shoulder portion of the subject to measure electromyography, and a motion detection unit 132 for measuring the inclination of the front, rear, left and right of the subject's body;
The storage unit 151 storing the image content including a map image that directs a target person to take a specific posture while holding the handle unit 120 and a virtual image that implements climbing as a first person view, and according to a mode selection. A synchronization unit 152 for applying a map image or a virtual image to the display 112 but reflecting the detection result of the pressure sensor 123 and the measurement result of the motion detection unit 132 in the applied image content Control unit 150; Upper limb rehabilitation device using a virtual reality (VR) climbing exercise, characterized in that consisting of.
According to claim 1,
A vibration stimulation unit 140 installed on the handle unit 120 or the wearing unit 130 to generate vibration; Including more,
The control unit 150 is a feedback unit 153 that operates the vibration stimulation unit 140 as the measurement results of the EMG sensor 131 and the motion detection unit 132 fall within a set range in response to the applied map image. Upper limb rehabilitation training device using a virtual reality (VR) climbing exercise, characterized in that it further comprises a.
According to claim 1,
The wearing part 130 is worn on the upper body and both arms of the subject, respectively
A diagnostic unit 154 that reconstructs the subject's motion through the measurement results of the EMG sensor 131, the pressure sensor 123, and the motion detection unit 132, and then compares the motion with the applied map image and provides feedback; Upper limb rehabilitation training apparatus using a virtual reality (VR) climbing exercise, characterized in that it further comprises.
According to claim 3,
The map image and the virtual image are provided for each level,
The control unit 150 further includes a level management unit 155 for applying a map image and a virtual image according to the level of each subject by applying the content fed back through the diagnosis unit 154. ) Upper limb rehabilitation equipment using climbing exercise. delete

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