A device for awakening a vegetative patient

Abstract

Disclosed is a device for awakening a vegetative patient, comprising an audio playback unit, the audio playback unit plays a first audio signal set to the vegetative patient; a brain wave signal acquisition unit, when the audio playback unit plays the first audio signal set to the vegetative patient, the brain wave signal acquisition unit collects the brain wave signal of the vegetative patient; a brain wave signal gain amplification unit, used to amplify the brain wave signal; a brain wave analysis unit, the brain wave analysis unit analyzes the amplified brain wave signal to obtain a brain wave analysis result; an audio selection unit, the audio selection unit is used to select a second audio signal set from the first audio signal set according to the brain wave analysis result; an audio synthesis unit, the audio synthesis unit synthesizes a third audio signal according to the second audio signal set, and the audio playback unit plays the third audio signal to the vegetative patient. By collecting audio samples, the special audio is analyzed and synthesized by the device, and the synthesized audio is used to achieve the purpose of increasing the probability of awakening the vegetative patient.

Description

Technical Field

[0001] The invention relates to medical equipment, and in particular to a wake-up device for vegetative patients. Background Art

[0002] Vegetative state (PVS) is a special human state similar to the state of plant survival. In addition to retaining some instinctive nerve reflexes and the ability to metabolize substances and energy, cognitive ability (including the ability to recognize one's own existence) has been completely lost, and there is no active activity. It is also called vegetative state and irreversible coma. The brain stem of a vegetative person is still functional. When nutrients are transported into the body, it can also digest and absorb, and can use this energy to maintain the body's metabolism, including breathing, heartbeat, blood pressure, etc. It can also produce some instinctive reflexes to external stimuli, such as coughing, sneezing, yawning, etc. However, the body no longer has consciousness, perception, thinking and other advanced neural activities unique to humans. The electroencephalogram shows a stray waveform.

[0003] The awakening of vegetative patients is also called the recovery of consciousness. Only through active treatment and rehabilitation, and the use of various possible effective means, can the probability of consciousness recovery be increased. "So far, there is no special method to promote awakening of vegetative patients. In clinical practice, a variety of methods are used to assist brain recovery, such as drugs, various sound, light, and electromagnetic stimulation, hyperbaric oxygen therapy, music therapy, traditional Chinese medicine treatment, etc. The efficacy varies from person to person." Summary of the invention

[0004] The present invention provides a device for awakening a vegetative patient, which collects audio samples and analyzes and synthesizes special audio through equipment, and achieves the purpose of increasing the probability of awakening the vegetative patient through the synthesized audio. The device includes:

[0005] An audio playback unit, wherein the audio playback unit plays a first audio signal set to the vegetative patient;

[0006] a brain wave signal collecting unit, which collects brain wave signals of the vegetative patient when the audio playing unit plays the first audio signal set to the vegetative patient;

[0007] A brain wave signal gain amplification unit, used to amplify the brain wave signal;

[0008] A brain wave analysis unit, which analyzes the amplified brain wave signal to obtain a brain wave analysis result;

[0009] an audio selection unit, the audio selection unit being configured to select a second audio signal set from the first audio signal set according to the brain wave analysis result;

[0010] An audio synthesis unit is configured to synthesize a third audio signal according to the second audio signal set, and the audio playing unit plays the third audio signal to the vegetative patient.

[0011] In one example, selecting a second audio signal set from the first audio signal set according to the brain wave analysis result includes:

[0012] Determining a brain wave analysis result that meets a first preset condition;

[0013] The first audio signal in the first audio signal set corresponding to the brain wave analysis result that meets the first preset condition is determined as the second audio signal set.

[0014] In one example, the first audio signal and the second audio signal are both speech signals of a relative, friend or classmate of the vegetative patient.

[0015] In one example, synthesizing a third audio signal according to the second audio signal set includes:

[0016] Performing voiceprint analysis on each audio signal in the second audio signal set to obtain a speaker;

[0017] performing speech recognition on each audio signal in the second audio signal set, and obtaining keywords from the speech recognition results;

[0018] Obtaining corpus corresponding to the keyword;

[0019] A third audio signal is synthesized according to the speaker and the corpus.

[0020] In one example, the audio playback unit includes a bone conduction headset.

[0021] The beneficial effects brought by the technical solution of the present invention include the following aspects:

[0022] 1. Effectively reduce the repeated calls of family members and friends to the patient, synthesize and play the audio signal that has the greatest stimulation to the patient's brain, reduce the fatigue of family members and friends, and increase the chance of awakening.

[0023] 2. As an auxiliary rehabilitation device, it has no side effects and does not have adverse effects on the human body.

[0024] 3. After the patient wakes up, it can also be used as rehabilitation equipment to improve the patient's motor skills and stabilize his emotions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Diagram of the structure of the awakening device for vegetative patients. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1 The awakening device for a vegetative patient provided in an embodiment of the present invention includes an audio playback unit, a control panel, a device display, a data storage device, a Bluetooth component and a power supply. The device binds the vegetative patient with the mobile phone APP program through the Bluetooth component and matches the most suitable audio for the vegetative patient; the audio playback unit plays a first audio signal set to the vegetative patient. Specifically, the audio player can be a bone conduction headset or an ordinary dynamic headset. Since the speaking voice of a close relative can effectively stimulate the brain nerves of a vegetative patient, the first audio signal set can include multiple first audio signals, wherein the first audio signal is a speaking voice signal of a relative, friend or classmate of the vegetative patient.

[0028] The brain wave signal collection unit collects brain wave signals from the vegetative patient when the audio player plays the first audio signal set to the vegetative patient.

[0029] The brain wave analysis unit analyzes the brain wave signal of the vegetative patient to obtain a brain wave analysis result. Because certain topics spoken by certain people can effectively stimulate the vegetative patient, the brain waves will be obviously active at this time, so we can analyze the brain wave signal to determine whether the patient has responded to the played audio signal.

[0030] An audio selection unit, the audio selection unit is used to select a second audio signal set from the first audio signal set according to the brain wave analysis result. Since not all topics spoken by all speakers have a wake-up effect on users, we need to select truly effective first audio signals from the first audio signal set to form the second audio signal set. If the played audio signal is effective for patients with vegetative state, then when the audio signal is played, the brain waves will be obviously active. Therefore, by performing real-time analysis of the amplitude of the brain waves, we can accurately select the second audio signal set from the first audio signal set.

[0031] An audio synthesis unit, wherein the audio synthesis unit synthesizes a third audio signal according to the second audio signal set, and the audio playback unit plays the third audio signal to the vegetative patient. Next, the third audio signal is synthesized using these second audio signals that are effective for awakening, and the third audio signal can more effectively awaken the vegetative patient. Finally, the third audio signal is played to the vegetative patient through the audio playback unit, and the synthesized audio is transmitted to the brain through the bone conduction earphones, so as to stimulate the patient's auditory nerve, produce auditory stimulation to the patient, promote the enhancement of brain bioelectric activity, adjust the potential capacity of the cerebral cortex, and increase blood flow in most areas of the brain, thereby improving clinical symptoms, and regulating the limbic system and brainstem reticular activation system, accelerating the recovery of consciousness, and promoting the early awakening of patients.

[0032] In one example, selecting a second audio signal set from the first audio signal set according to the brain wave analysis result includes:

[0033] Determine a brain wave analysis result that satisfies a first preset condition, for example, the first preset condition refers to that the amplitude of the brain wave exceeds a certain threshold;

[0034] The first audio signal in the first audio signal set corresponding to the brain wave analysis result that meets the first preset condition is determined as the second audio signal set. The time when the amplitude of the brain wave exceeds a certain threshold is determined, and the first audio signal played at the same time is found to prove that the first audio signal played at this time is a signal that is effective for awakening, that is, the second audio signal set.

[0035] In one example, synthesizing a third audio signal according to the second audio signal set includes:

[0036] Perform voiceprint analysis on each audio signal in the second audio signal set to obtain the speaker. The speaker information can be marked when the first audio signal is recorded in advance, and the corresponding speaker can be obtained from the second audio signal according to the voiceprint information. Voiceprint recognition is a mature existing technology and will not be described in detail.

[0037] Perform speech recognition on each audio signal in the second audio signal set, and obtain keywords from the speech recognition results. Specifically, first perform speech recognition on the second audio signal to obtain text information, and then extract keywords from the text to obtain semantic key information in the speech.

[0038] Obtain the corpus corresponding to the keyword. For example, you can download some corresponding predictions based on the keyword. For example, if the keywords include "summer vacation" and "football", you can download some stories about playing football in summer as corpus for the next step of speech synthesis.

[0039] A third audio signal is synthesized according to the speaker and the corpus. Specifically, a new voice signal, i.e., a third audio signal, can be synthesized according to the football story obtained in the above steps and the speaker information obtained from the voiceprint information. For example, the story of playing football in summer can be told in the voice of the brother.

[0040] Using the speaker that the patient is most interested in to synthesize the topic that the patient is most interested in can effectively increase the probability of the patient being awakened and greatly reduce the burden on relatives.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for awakening a vegetative patient, characterized in that: The device comprises: An audio playback unit, wherein the audio playback unit plays a first audio signal set to the vegetative patient; a brain wave signal collecting unit, which collects brain wave signals of the vegetative patient when the audio playing unit plays the first audio signal set to the vegetative patient; A brain wave signal gain amplification unit, used to amplify the brain wave signal; A brain wave analysis unit, which analyzes the amplified brain wave signal to obtain a brain wave analysis result; an audio selection unit, the audio selection unit being configured to select a second audio signal set effective for awakening from the first audio signal set according to the brain wave analysis result; an audio synthesis unit, wherein the audio synthesis unit synthesizes a third audio signal according to the second audio signal set, and the audio playing unit plays the third audio signal to the vegetative patient; The synthesizing the third audio signal according to the second audio signal set includes: performing voiceprint analysis on each audio signal in the second audio signal set to obtain a speaker; performing speech recognition on each audio signal in the second audio signal set to obtain a keyword from the result of the speech recognition; obtaining a corpus corresponding to the keyword; and synthesizing the third audio signal according to the speaker and the corpus. The selecting the second audio signal set from the first audio signal set according to the brain wave analysis result includes: determining a brain wave analysis result that satisfies a first preset condition; and determining the first audio signal in the first audio signal set corresponding to the brain wave analysis result that satisfies the first preset condition as the second audio signal set.

2. The device according to claim 1, characterized in that The first audio signal and the second audio signal are both speech signals of the relative, friend or classmate of the vegetative patient.

3. The device according to claim 1, characterized in that The audio playback unit includes a bone conduction earphone.

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