CN106551699A - Based on the vestibular function detection means that vestibule electricity irritation and head movement are tracked - Google Patents

Abstract

The present invention is a vestibular function detection device based on vestibular electrical stimulation and head movement tracking, including: a vestibular electrical stimulation device, which can provide a non-invasive vestibular detection device, which improves the comfort of the sided person. The human forehead, left and right temples or mastoids behind the ears are coupled to realize the conduction of the current with the human body, which is used to change the input signal of the semicircular canal and otolith of the human vestibular organ; the head posture measurement device, through the three-dimensional posture sensor fixed on the helmet Detect the change of the subject's posture, realize the link of the control computer through the Bluetooth device, and use it to measure the change of the head posture; the control computer is used to control the stimulation current type, intensity and stimulation time of the vestibular electrical stimulation device, and receive the head posture measurement The data of the three-dimensional attitude sensing device in the device is processed, and the relevant parameters are displayed in real time. The present invention can measure the head attitude change caused by vestibular electrical stimulation through the combined use of the above-mentioned device, and can be used for the detection of vestibular function, the selection training of vestibular function and the research of vestibular function.

Description

Vestibular function detection device based on vestibular electrical stimulation and head movement tracking

technical field

The invention relates to the field of biomedical engineering research, in particular to a vestibular function detection device based on vestibular electrical stimulation and head movement tracking.

Background technique

The vestibular system has a dual role of stabilizing vision and stabilizing upright balance through motor neurons originating from the vagus organ and terminating in the muscles of the eyes, neck, trunk and extremities. Balance disturbance and vertigo occur when vestibular function is impaired, so quantitative testing of vestibular function plays an important role in the prevention of vestibular dysfunction.

Ideally, testing the integrity of vestibular function requires testing the integrity of the vestibulo-ocular reflex and vestibular balance control pathways. Angular and linear acceleration of the head are sufficient stimuli to excite the vestibular cells. However, applying a real head acceleration to test the vestibular pathway is very difficult because there is a widespread activation of somatosensory afferents in muscles, joints, and skin and this elicits powerful postural responses. Electrical vestibular stimulation makes vestibular afferents a pure stimulus, so that these direct somatosensory responses are not activated. Moreover, vestibular electrical stimulation is technically simple and safe, and the subjects can tolerate it well. What makes it special is that it can provide a pure vestibular stimulus to maze alone to test vestibular function. When the human body receives vestibular electrical stimulation, the head will accelerate. The vestibular function can be evaluated by measuring the magnitude of the angular acceleration and the time for the human head to recover its balance. And people have short-term and long-term adaptability to vestibular electrical stimulation, so good balance and motor control can be improved through training.

The emergence and development of vestibular function testing technology has a history of several decades. Due to the extremely complex structure and function of the vestibular nervous system, the development of vestibular function testing technology has been slow. Previously, cold and hot air, head nystagmus, etc. method. There is no convenient, quick and effective device for detecting vestibular function.

Therefore, there is an urgent need in the art for a device to realize one or more of the following functions:

- Non-invasive vestibular electrical stimulation to improve the comfort of the testee when testing the vestibular function;

-By applying vestibular electrical stimulation to change the acceleration of the human head, detect, train and study vestibular function.

Contents of the invention

The purpose of the present invention is to provide a non-invasive vestibular function detection device to realize convenient, fast and effective detection of vestibular function, and provide a basis for vestibular function selection training, vestibular dysfunction prevention and vestibular function research.

The vestibular function detection device based on vestibular electrical stimulation and head movement tracking of the present invention comprises: a vestibular electrical stimulation device, a head attitude measurement device and a control computer.

The vestibular electrical stimulation device includes a helmet, a direct current constant current power supply, a control circuit, wires and electrode sheets. The device induces three-dimensional head movement by electrically stimulating the forehead, the left and right temples, or the mastoids behind the ears on both sides. The current output end is coupled with the forehead, the left and right temples or the mastoid behind the ear through the electrode sheet to realize the conduction between the current and the human body.

The head attitude measurement device includes a three-dimensional attitude sensor, in which the three-dimensional attitude sensor is fixed on the helmet, and the connection between the three-dimensional attitude sensor and the control computer is realized through bluetooth, and the attitude change signal of the subject is received.

The control computer is connected with the vestibular electrical stimulation device and the head posture measurement device. The stimulation current type, intensity and stimulation time of vestibular electrical stimulation can be set by controlling the specific software in the computer. At the same time, the control computer receives the signal from the head posture measurement device, and can display the stimulation current type, intensity and stimulation time value of the electric stimulation device and the head posture change of the head posture measurement device in real time.

The beneficial effects of the present invention are as follows:

The vestibular function detection device based on vestibular electrical stimulation and head movement tracking designed by the present invention can effectively stimulate the vestibular organ of the subject and detect the three-dimensional posture change of the human head.

It can be seen that the present invention can provide a non-invasive vestibular detection device, improve the comfort of the sided person, and create a convenient, fast and effective vestibular detection tool. Further, it can be used for preventing vestibular dysfunction, training related to vestibular function, improving vestibular function, enhancing balance ability, improving motor control, and reducing accidents caused by vestibular function.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a vestibular function detection device based on vestibular electrical stimulation and head movement tracking according to the present invention, which includes a vestibular electrical stimulation device, a head posture measurement device and a control computer.

Fig. 2 is a schematic top view of the vestibular function detection device based on vestibular electrical stimulation and head movement tracking according to the present invention.

Explanation of reference numbers

Vestibular electrical stimulation device 1, control computer 2, wire 3, electrode pads 4a, 4b, 4c, 4d, 4f, helmet 5, head posture measuring device 6, DC constant current power supply 7.

detailed description

As shown in Figure 1, the vestibular function detection device based on vestibular electrical stimulation and head movement tracking according to an embodiment of the present invention includes: vestibular electrical stimulation device 1, head posture measurement device 6 and control computer 2

According to one embodiment of the present invention, as shown in Fig. 1 and Fig. 2, vestibular electrical stimulation device 1 comprises helmet 5, DC constant current power supply 7, control circuit, lead wire 3, five electrode sheets 4 etc., through electrode sheet 4 Controllable direct current stimulation to the forehead, temple or both sides of the retroauricular mastoid is used to change the input signal of the vestibular organ of the human body. Through the control calculation 2, the control circuit can be set to generate various types of stimulation current, and the direction and magnitude of the real-time stimulation current can be set. The positive and negative output terminals of the vestibular electrical stimulation device are respectively coupled with the human body through the electrode sheet 4, and are used to stimulate the conduction of the current and the human body, and make the passing current a set value. The head attitude measuring device 6 contains a three-dimensional attitude sensor, which can acquire the signal of the head attitude change in real time, and transmit it to the control computer 2 for processing through bluetooth. The vestibular electrical stimulation device and the head posture measurement device are finally integrated and placed on the helmet.

The device detects changes in the head posture of the subject by inducing the vestibular illusion. It is a non-invasive vestibular function detection device and can be used for the detection of vestibular function, the selection and training of vestibular function and the research of vestibular function.

The detection of embodiment vestibular function

The device can be used for the detection of vestibular function. During use, the subject wears the helmet 5 and keeps standing. The electrode pads of the vestibular electrical stimulation device 1 were respectively pasted on the mastoids behind the ears on both sides and fully contacted. The control computer 2 controls the stimulation current type, intensity and stimulation time of the vestibular electrical stimulation device 1 to stimulate the subject. Normal people will incline to the anode of electrical stimulation during vestibular electrical stimulation; however, some patients with vestibular dysfunction lack this phenomenon, or the inclination range is significantly smaller. The change of the head attitude of the subject is recorded in real time by the three-dimensional attitude sensor in the head attitude measuring device 6 fixed on the helmet, and the control computer 2 receives the three-dimensional attitude sensor data in real time, and displays and saves the data in real time after processing.

It should be understood that the description of the present invention in the foregoing description and description is only illustrative and not limiting, and that the above-described embodiments may be modified without departing from the present invention as defined in the appended claims. Various changes, deformations, and/or corrections.

Claims (3)

1. the vestibular function detection means for being tracked based on vestibule electricity irritation and head movement, it is characterised in that include：

Vestibule electrical stimulation device (1), it is electric including the helmet (5), DC constant flowing power (7), control circuit, wire (3) and five Pole piece (4a, 4b, 4c, 4d, 4f), by DC constant flowing power (7) and electrode slice to measured's forehead, left and right temple or both sides After ear, mastoid process applies controllable electricity irritation, for changing the vestibular apparatuies input signal of measured；

Head pose measurement apparatus (6), including three-dimensional attitude sensor and control circuit, are placed in after encapsulation at the top of the helmet (5), and Ensure the detected acceleration of three-dimensional attitude sensor and angular acceleration direction and three anatomical axis sagittal axis of human body, frontal axises and hang down D-axis difference is parallel, for the change of real-time detection measured's head pose；

Control computer (2), is connected with the vestibule electrical stimulation device (1) and the head pose measurement apparatus (6) respectively, is used In the stimulating current type, intensity and the stimulation time that control the vestibule electricity irritation, the head pose measurement apparatus (6) are received Head pose variable signal and process, and show relevant parameter in real time.

2. vestibular function detection means according to claim 1, it is characterised in that the head pose measurement apparatus (6) By the real-time head pose variable signal for obtaining, processed to the control computer (2) by Bluetooth transmission.

3. vestibular function detection means according to claim 1, it is characterised in that during use, measured wears the helmet, body Body keeps standing or sitting posture；The electrode slice of vestibule electrical stimulation device (1) is affixed on mastoid process or the bilateral sun after forehead, bilateral ear respectively Cave, and be fully contacted；When control computer (2) controls stimulating current type, intensity and the stimulation of vestibule electrical stimulation device (1) Between, measured is stimulated；The head pose of measured changes by the head pose measurement apparatus (6) being fixed on the helmet Three-dimensional attitude sensor real time record, control computer (2) real-time reception three-dimensional attitude sensor data are real after data processing When show and preserve.