CN111528837A - Wearable electroencephalogram signal detection device and manufacturing method thereof - Google Patents
Wearable electroencephalogram signal detection device and manufacturing method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
- A61B5/6815—Ear
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
- A61B5/6815—Ear
- A61B5/6816—Ear lobe
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7405—Details of notification to user or communication with user or patient ; user input means using sound
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2576/00—Medical imaging apparatus involving image processing or analysis
- A61B2576/02—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part
- A61B2576/026—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part for the brain
Abstract
The disclosure relates to a wearable electroencephalogram signal detection device and a manufacturing method thereof. The device is used for being worn at the auricle of a living body to obtain an electroencephalogram signal of the living body, each electrode unit of the device comprises an electrode, a substrate layer with a preset three-dimensional shape and a connecting wire connected with the electrode, and the substrate layer is used for bearing the electrode and the connecting wire and attaching the electrode unit to the target position of the living body; the electrode is contacted with a target position to detect to obtain a detection signal; the processing circuit receives, analyzes and processes the detection signals to obtain an electroencephalogram signal of the organism, and sends out a corresponding prompt when the electroencephalogram signal is determined to meet the response condition; the wearable shell is used for carrying a processing circuit, and the structural shape of the wearable shell is matched with the auricle of a living body. The device provided by the embodiment of the disclosure can be worn for a long time, is good in wearing comfort, monitors electroencephalogram signals in real time and can remind people according to monitoring results.
Description
Technical Field
The disclosure relates to the technical field of flexible electronics, in particular to a wearable electroencephalogram signal detection device and a manufacturing method thereof.
Background
Electrical activity is the fundamental physiological activity of the human body, and brain diseases are accompanied by changes in electrical signals at onset. Although the brain diseases such as epilepsy and the like are accompanied by the change of electroencephalogram signals during the attack, the paroxysmal characteristics of the brain diseases cause the attack rule to be difficult to predict and the patient is difficult to be cured in time. Some brain diseases can be diagnosed according to electroencephalogram waveforms, but the brain diseases with the characteristics of invisibility and rapidity can cause missed diagnosis due to insufficient monitoring time of the conventional electroencephalogram.
Students have developed several electronic devices implanted in vivo for lesion location and postoperative evaluation for brain diseases, however, such devices face the dual challenges of biocompatibility and surgical trauma, and are not easy to realize long-term monitoring. Moreover, the device is limited by a narrow implantation space in a body, the integration level of the device is low, external equipment is often required to analyze and process signals, the daily activities of patients are limited due to the fact that the device is not easy to carry, and the maintenance cost is improved. In the related art, the development of wearable health monitoring electronic devices realizes the long-term real-time monitoring of electrophysiological signals, and timely and effective early warning of the occurrence of acute diseases is a problem to be solved urgently.
Disclosure of Invention
In view of this, the present disclosure provides a wearable electroencephalogram signal detection device and a manufacturing method thereof.
According to an aspect of the present disclosure, there is provided a wearable brain electrical signal detection apparatus for wearing at an auricle of a living organism to obtain brain electrical signals of the living organism, the apparatus including: at least three electrode units, a processing circuit and a wearable shell, wherein each electrode unit comprises an electrode, a substrate layer with a preset three-dimensional shape and a connecting wire connected with the electrode, the substrate layer is used for bearing the electrode and the connecting wire,
the substrate layer is used for attaching the electrode unit to a target position of the organism;
the electrode is in contact with the target position and is used for detecting the target position to obtain a detection signal;
the processing circuit is connected with the electrodes through the connecting wires, receives the detection signals of each electrode, analyzes and processes the detection signals according to the detection signals to obtain electroencephalogram signals of the organism, and sends out corresponding prompts based on response conditions when the electroencephalogram signals are determined to meet the response conditions;
the wearable shell is used for carrying the processing circuit, the structure shape of the wearable shell is matched with the auricle of the living body so as to be worn at the auricle of the living body,
wherein the at least three electrode units include a ground electrode unit, a recording electrode unit, and a reference electrode unit, the target location of the recording electrode unit includes a mastoid of the living organism, the target locations of the ground electrode unit and the reference electrode unit are a forehead center region and an earlobe of the living organism, respectively, or the target locations of the ground electrode unit and the reference electrode unit are an earlobe and a triangular fossa of the living organism, respectively,
the material of the substrate layer comprises a flexible insulating material.
In one possible implementation, the electrode comprises a wire distributed in a spiral, the shape of the wire comprising a malleable shape.
In one possible implementation, the electrode is arranged in the groove of the substrate layer, and the electrode is contacted with the substrate layer except the surface of the electrode contacted with the target position,
the connecting lines are all arranged inside the substrate layer.
In one possible implementation, the preset three-dimensional shape of the substrate layer matches a surface shape of a target site of the biological body, and the shape and size of the wearable housing matches an auricle of the biological body.
In one possible implementation, the response conditions include pathological conditions and abnormal conditions,
when the processing circuit determines that the amplitude of the electroencephalogram signal exceeds a preset threshold value, the processing circuit determines that the electroencephalogram signal meets an abnormal condition and sends an abnormal prompt;
when the processing circuit determines that the electroencephalogram signal is matched with the pathological signal of the organism, the processing circuit determines that the electroencephalogram signal meets pathological conditions and initiates disease reminding,
the processing circuit comprises a loudspeaker and/or an LED lamp, and the reminding comprises a sound and/or light reminding.
In one possible implementation, the wearable housing includes an elastic band and/or a hook.
In one possible implementation, the thickness of the electrodes and the connection lines is less than or equal to 1 μm.
According to another aspect of the present disclosure, there is provided a method for manufacturing a wearable electroencephalogram signal detection device, the method including:
preparing a connecting wire and an electrode on a hard substrate;
transferring the connecting wire and the electrode to a substrate layer which is prepared in advance and has a preset three-dimensional shape to form an electrode unit;
connecting the electrode unit with a pre-prepared processing circuit;
and (3) installing the processing circuit into a prefabricated wearable shell, wherein the wearable shell is matched with the auricle of the living body in structural shape, and completing the manufacture of the device.
In one possible implementation, the method further includes:
determining a three-dimensional topography of a target location of the organism;
determining the three-dimensional shape of the substrate layer and the structural shape of the wearable shell according to the three-dimensional morphology, and preparing the substrate layer and the wearable shell.
In one possible implementation, determining a three-dimensional topography of a target location of the organism comprises:
determining the three-dimensional topography of the target location of the organism based on an image moire method and/or a holography method.
The wearable electroencephalogram signal detection device and the manufacturing method thereof provided by the embodiment of the disclosure can be worn at the auricle of an organism for a long time and are matched with the appearance of the target position of the organism, and the wearing comfort of the organism is good. The electroencephalogram monitoring system can realize real-time monitoring of electroencephalograms of the organism and can give out a prompt according to the detection result of the electroencephalograms so as to prompt that the electroencephalograms of the organism have problems.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a schematic structural diagram of a wearable electroencephalogram signal detection device according to an embodiment of the present disclosure.
Fig. 2 and 3 are schematic diagrams illustrating wearing positions of electrode units in a wearable electroencephalogram signal detection device according to an embodiment of the present disclosure.
Fig. 4 shows a circuit schematic diagram of a processing circuit in a wearable brain electrical signal detection device according to an embodiment of the present disclosure.
Fig. 5 shows a schematic structural diagram of an electrode unit in a wearable electroencephalogram detection device according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 shows a schematic structural diagram of a wearable electroencephalogram signal detection device according to an embodiment of the present disclosure. Fig. 2 and 3 are schematic diagrams illustrating wearing positions of electrode units in a wearable electroencephalogram signal detection device according to an embodiment of the present disclosure. As shown in fig. 1, 2 and 3, the apparatus is used for being worn at the auricle of a living body to obtain an electroencephalogram signal of the living body, and comprises: at least three electrode units 10, a processing circuit 20 and a wearable shell 30, wherein each electrode unit 10 comprises an electrode 101, a substrate layer 102 having a preset three-dimensional shape and a connection line 103 connected with the electrode 101, and the substrate layer 102 is used for carrying the electrode 101 and the connection line 103.
The substrate layer 102 is used for attaching the electrode unit 10 to a target position of the living body.
The electrode 101 is in contact with the target position, and is used for detecting the target position to obtain a detection signal.
The processing circuit 20 is connected to the electrodes 101 through the connecting line 103, receives the detection signal of each electrode 101, analyzes and processes the detection signals according to the detection signals to obtain an electroencephalogram signal of the organism, and sends out a corresponding prompt based on a response condition when the electroencephalogram signal is determined to meet the response condition.
The wearable housing 30 is used for carrying the processing circuit 20, and the wearable housing 30 is matched with the auricle of the living body in structural shape so as to be worn at the auricle of the living body.
Wherein the at least three electrode units 10 include a ground electrode unit 11, a recording electrode unit 12 and a reference electrode unit 13, the target position of the recording electrode unit 12 includes a mastoid of the living body (as shown in fig. 2 and 3), the target positions of the ground electrode unit 11 and the reference electrode unit 13 are a forehead center region and an earlobe of the living body, respectively (as shown in fig. 2), or the target positions of the ground electrode unit 11 and the reference electrode unit 13 are an earlobe and a triangular fossa of the living body, respectively (as shown in fig. 3). The material of the substrate layer 102 comprises a flexible insulating material.
In this embodiment, the reminder issued by the processing circuit may be issued to a living body carrying the device, or may be sent to another person specified in advance by a wireless communication method such as a wireless lan or bluetooth. For example, assuming that the device is carried by the elderly, the reminder may be sent to the elderly, and/or to pre-designated relatives of the elderly, medical personnel, etc., so that the corresponding personnel can make corresponding treatment based on the reminder.
In this embodiment, the material of the backing layer should also have a modulus of elasticity similar to the target site of the living being, which ensures that the living being will be comfortable to wear the device for a long period of time.
In the present embodiment, the number of the recording electrode units may be set as needed, and may be one or more, which is not limited by the present disclosure.
In this embodiment, fig. 4 shows a circuit schematic diagram of a processing circuit in a wearable electroencephalogram signal detection device according to an embodiment of the present disclosure, which is only one implementation example of the processing circuit provided by the present disclosure, and the present disclosure does not limit this. In one possible implementation, as shown in fig. 4, the processing circuit processes the signals detected by the ground electrode unit 11, the recording electrode unit 12, and the reference electrode unit 13 as input signals, respectively. The signal detected by the ground electrode unit is input to the processing circuit as GND, the signal detected by the recording electrode unit is input to the processing circuit as REC, and the reference electrode unit is input to the processing circuit as REF. VTH in the processing circuit inputs the threshold voltage of the comparator, VCC inputs the supply voltage. The processing circuit processes the detection signal and includes at least one of amplification, filtering, comparison, and the like (the circuit shown in fig. 4 includes the processing procedures of amplification, filtering, comparison). The amplification processing performed by the processing circuit may be that the REC and the REF signal are integrated and output through a differential amplification circuit. The filtering process may be to filter out high-frequency interference signals and keep low-frequency electroencephalogram signals through a low-pass filtering circuit. The comparison processing can be that whether the amplitude of the electroencephalogram signal exceeds a set threshold (namely a preset threshold) is judged through a comparator, and an abnormal prompt is sent out when the amplitude of the electroencephalogram signal exceeds the set threshold. The interaction between the device and the patient realized by the processing circuit can be realized by determining that the electroencephalogram signal meets pathological conditions and sending out disease-onset reminding when the pathological signals are identified, namely the electroencephalogram signal obtained by processing is similar to or consistent with the electroencephalogram signal in the case of illness.
The wearable electroencephalogram signal detection device provided by the embodiment of the disclosure can be worn at the auricle of an organism for a long time, and is matched with the appearance of the target position of the organism, so that the wearing comfort of the organism is good. The electroencephalogram monitoring system can realize real-time monitoring of electroencephalograms of the organism and can give out a prompt according to the detection result of the electroencephalograms so as to prompt that the electroencephalograms of the organism have problems.
In one possible implementation, as shown in fig. 1, the electrode 101 may include a wire distributed in a spiral shape, and the shape of the wire may include a malleable shape, such as a serpentine, zigzag, or other meandering, malleable shape.
The electrode is arranged into a lead in a spiral shape, a zigzag shape and the like, so that the contact area of the electrode and a target position can be ensured, and the electrode has good flexibility and extensibility. Providing the shape of the wire in a malleable shape may further improve the flexibility and malleability of the electrode.
Fig. 5 shows a schematic structural diagram of an electrode unit in a wearable electroencephalogram detection device according to an embodiment of the present disclosure. In one possible implementation, as shown in fig. 5, the electrode 101 is disposed in a groove of the substrate layer 102, and the electrode 101 is in contact with the substrate layer 102 except for the surface in contact with the target position. The electrode is embedded into the groove of the substrate layer, so that the electrical isolation among different positions of the lead in the electrode can be realized, and meanwhile, the electrode can be fully contacted with a target position to realize signal detection.
In one possible implementation, the connecting lines 103 are all disposed inside the substrate layer 102. Thus, insulation of the connection line can be ensured. An insulating sheath can also be arranged on the connecting wire to realize the insulation of the connecting wire.
In one possible implementation, in order to facilitate the connection between the electrode and the connecting wire, a connecting end 1011 for connecting with the connecting wire may be provided in the electrode. In one possible implementation, the preset three-dimensional shape of the substrate layer matches a surface shape of a target site of the biological body, and the shape and size of the wearable housing matches an auricle of the biological body.
In this implementation, the target position and the surface shape of the auricle of the living body may be detected in advance, and then the shapes of the substrate layer and the wearable housing may be set according to the detection result. To ensure that the backing layer can fit snugly at the target location and so that the device can be suspended from the pinna of the living being by the wearable housing.
In one possible implementation, the response condition may include a pathological condition and an abnormal condition.
When the processing circuit determines that the amplitude of the electroencephalogram signal exceeds a preset threshold value, the processing circuit determines that the electroencephalogram signal meets an abnormal condition and sends an abnormal prompt.
And when the electroencephalogram signal is determined to be matched with the pathological signal of the organism, the processing circuit determines that the electroencephalogram signal meets the pathological condition and initiates a disease prompt.
The processing circuitry may include a speaker and/or LED lights and the alerts (i.e., the abnormality alert and/or the onset alert) may include an audible and/or light alert.
In this implementation, the abnormal condition may further include disappearance of the electroencephalogram signal, amplitude of the electroencephalogram signal, frequency abnormality (for example, the amplitude is smaller than a preset minimum threshold, the frequency is higher than a preset maximum threshold, and the frequency is smaller than a preset minimum threshold), and the like. When the device is used, the electroencephalogram signal of a carrier is abnormal, the device breaks down, the device falls off, the electrode falls off from a target position, the electrode is not accurately attached to the target position any more, the detection of the electroencephalogram signal is abnormal due to adverse effects caused by the external environment and the like, abnormal conditions can be set according to the condition possibly causing the detection influence of the electroencephalogram signal, so that organisms (such as the carrier) and/or related personnel (such as medical care personnel, family members, animal managers and the like) of the device can remind a user to check and determine the specific reason for the abnormal detection of the device according to the abnormality, and the reliability of the detection of the device is guaranteed. And different or the same exception prompt can be set for different exception conditions. If different abnormal reminding is set, the reason of the electroencephalogram signal abnormality can be indicated through different abnormal reminding.
In the implementation mode, the case signal of the organism can be determined in advance according to the electroencephalogram signal characteristics of the organism in the onset of different diseases. And different or the same onset reminders can be set for different pathological conditions. If different onset reminders are set, the specific onset types of the organisms can be indicated through different onset reminders.
In this implementation, the abnormality reminder and the onset reminder may be reminded using different manners. For example, the onset reminder may be a voice and red light reminder, and the exception reminder may be a yellow light reminder. The person skilled in the art can set the onset reminder and the abnormality reminder according to actual needs, and the disclosure does not limit this.
In one possible implementation, the processing circuit may only issue a disease onset reminder when it is determined that the electroencephalogram signal satisfies an abnormal condition (i.e., the amplitude of the electroencephalogram signal exceeds a preset threshold) and satisfies a pathological condition (i.e., the electroencephalogram signal matches a pathological signal of the organism). That is, when the electroencephalogram signal is abnormal and the abnormality caused by the disease is determined according to the abnormality, only the disease reminding can be sent out, and the current specific change condition of the electroencephalogram signal can be accurately indicated through reminding.
In one possible implementation, the wearable housing may include a stretch band and/or a hook.
In this implementation, the wearable housing may include a load-bearing portion of the processing circuitry and a portion that is worn. The wearable portion of the wearable housing may be a stretch band, a hook, or the like, such that the device may be suspended from (or otherwise mounted on) the pinna of the living being.
In one possible implementation, the thickness of the electrodes and the connection lines is less than or equal to 1 μm. Therefore, the normal signal detection requirement of the device can be ensured, and the electrode unit can be better attached to the target position.
And, the thickness of the electrode and the connecting wire simultaneously affects the bending rigidity and the impedance of the electrode and the connecting wire. In one aspect, reducing the thickness can significantly reduce the bending stiffness, thereby increasing the bending flexibility. For square cross-sections, the bending stiffness EI is proportional to the third power of the thickness (EI ═ Ebh)3/12: e modulus of elasticity, b cross-sectional width, h cross-sectional thickness). On the other hand, a reduced thickness will reduce the cross-sectional area, increasing the impedance, and thereby reducing the signal acquisition quality. The resistance R is inversely proportional to the first power of the cross-sectional area (R ═ ρ L/S, ρ resistivity, L length, S cross-sectional area). Through the analysis of the requirement on the detection of the electroencephalogram signals, the thickness of the control electrode and the connecting wire is less than or equal to 1 mu m, so that the bending rigidity of the electrode and the connecting wire can be reduced, and the signal acquisition quality can be ensured.
In one possible implementation, the device may further comprise an adhesive layer on said backing layer, such that the device may be adhered to a target site of a biological body by means of the adhesive layer. The bonding layer is positioned on one surface of the substrate layer, which is exposed out of the electrode, and the electrode is exposed out of the bonding layer.
The embodiment of the present disclosure further provides a manufacturing method of a wearable electroencephalogram signal detection device, which is used for manufacturing the wearable electroencephalogram signal detection device, and the method includes:
preparing a connecting wire and an electrode on a hard substrate;
transferring the connecting wire and the electrode to a substrate layer which is prepared in advance and has a preset three-dimensional shape to form an electrode unit;
connecting the electrode unit with a pre-prepared processing circuit;
and (3) installing the processing circuit into a prefabricated wearable shell, wherein the wearable shell is matched with the auricle of the living body in structural shape, and completing the manufacture of the device.
In one possible implementation, the method may further include:
determining a three-dimensional topography of a target location of the organism;
determining the three-dimensional shape of the substrate layer and the structural shape of the wearable shell according to the three-dimensional morphology, and preparing the substrate layer and the wearable shell.
In one possible implementation, determining a three-dimensional topography of a target location of the biological object may include: determining the three-dimensional topography of the target location of the organism based on an image moire method and/or a holography method.
The determination of the three-dimensional morphology by using the image moire method (Shadow moire) may refer to emitting detection light to a target position through a reference grating, projecting the detection light at the target position through the reference grating to generate a test-piece grating, observing from a certain angle deviating from the incident direction of the detection light, shielding the reference grating and the test-piece grating with each other to generate light and dark-alternated multistage fringes, wherein the same-step fringes may reflect contour lines of the target position, so that the three-dimensional morphology of the target position of the organism may be determined according to the light and dark-alternated multistage fringes.
Determining the three-dimensional shape by using the holography method may be to emit detection light to a target position and obtain reflected light returned after the detection light is reflected by the target position, and further determine the three-dimensional shape of the target position of the living body according to reference light coherent with the detection light (the detection light and the reference light may be two beams of light generated by splitting the same light beam), amplitude and phase changes between the reflected light.
In this implementation, the substrate layer can be prepared according to the determined molds respectively used for manufacturing the three-dimensional topography. The structural shape of the wearable shell can be set according to the determined three-dimensional shape, so that the manufactured device can be completely adapted to the shape characteristics of the organism, and the comfort of the organism wearing device is enhanced.
After the substrate layer mold is prepared, a substrate material liquid (such as a precursor of the substrate material) can be directly poured in the mold and cured to form the substrate layer. And then transferring the prepared electrode and/or connecting wire to a substrate layer.
In this implementation, the wearable housing may be prepared by 3D printing or the like, which is not limited by this disclosure.
It should be noted that the method for manufacturing the device is merely an example provided by the present disclosure, and a person skilled in the art may set the manufacturing method according to actual needs, and the present disclosure does not limit the method.
It should be noted that, although the wearable electroencephalogram signal detection apparatus and the manufacturing method thereof have been described above by taking the above-described embodiments as examples, those skilled in the art will understand that the present disclosure should not be limited thereto. In fact, the user can flexibly set each part and each step according to personal preference and/or actual application scene, as long as the technical scheme of the disclosure is met.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A wearable brain electrical signal detection apparatus for wearing at an auricle of a living body to obtain a brain electrical signal of the living body, the apparatus comprising: at least three electrode units, a processing circuit and a wearable shell, wherein each electrode unit comprises an electrode, a substrate layer with a preset three-dimensional shape and a connecting wire connected with the electrode, the substrate layer is used for bearing the electrode and the connecting wire,
the substrate layer is used for attaching the electrode unit to a target position of the organism;
the electrode is in contact with the target position and is used for detecting the target position to obtain a detection signal;
the processing circuit is connected with the electrodes through the connecting wires, receives the detection signals of each electrode, analyzes and processes the detection signals according to the detection signals to obtain electroencephalogram signals of the organism, and sends out corresponding prompts based on response conditions when the electroencephalogram signals are determined to meet the response conditions;
the wearable shell is used for carrying the processing circuit, the structure shape of the wearable shell is matched with the auricle of the living body so as to be worn at the auricle of the living body,
wherein the at least three electrode units include a ground electrode unit, a recording electrode unit, and a reference electrode unit, the target location of the recording electrode unit includes a mastoid of the living organism, the target locations of the ground electrode unit and the reference electrode unit are a forehead center region and an earlobe of the living organism, respectively, or the target locations of the ground electrode unit and the reference electrode unit are an earlobe and a triangular fossa of the living organism, respectively,
the material of the substrate layer comprises a flexible insulating material.
2. The device of claim 1, wherein the electrode comprises a wire distributed in a helix, the shape of the wire comprising a malleable shape.
3. The device of claim 1, wherein the electrode is disposed in a recess in the substrate layer and the electrode is in contact with the substrate layer except for a surface of the electrode in contact with the target location,
the connecting lines are all arranged inside the substrate layer.
4. The apparatus of claim 1, wherein the preset three-dimensional shape of the substrate layer matches a surface shape of a target site of the biological subject, and wherein the wearable housing matches a shape and size of an auricle of the biological subject.
5. The apparatus of claim 1, wherein the response condition comprises a pathological condition and an abnormal condition,
when the processing circuit determines that the amplitude of the electroencephalogram signal exceeds a preset threshold value, the processing circuit determines that the electroencephalogram signal meets an abnormal condition and sends an abnormal prompt;
when the processing circuit determines that the electroencephalogram signal is matched with the pathological signal of the organism, the processing circuit determines that the electroencephalogram signal meets pathological conditions and initiates disease reminding,
the processing circuit comprises a loudspeaker and/or an LED lamp, and the reminding comprises a sound and/or light reminding.
6. The device of claim 1, wherein the wearable housing comprises a stretch band and/or a hook.
7. The device of claim 1, wherein the thickness of the electrodes and the connecting wires is less than or equal to 1 μ ι η.
8. A method for manufacturing a wearable electroencephalogram signal detection device, characterized by comprising, for manufacturing the wearable electroencephalogram signal detection device of any one of claims 1 to 7:
preparing a connecting wire and an electrode on a hard substrate;
transferring the connecting wire and the electrode to a substrate layer which is prepared in advance and has a preset three-dimensional shape to form an electrode unit;
connecting the electrode unit with a pre-prepared processing circuit;
and (3) installing the processing circuit into a prefabricated wearable shell, wherein the wearable shell is matched with the auricle of the living body in structural shape, and completing the manufacture of the device.
9. The method of claim 8, further comprising:
determining a three-dimensional topography of a target location of the organism;
determining the three-dimensional shape of the substrate layer and the structural shape of the wearable shell according to the three-dimensional morphology, and preparing the substrate layer and the wearable shell.
10. The method of claim 9, wherein determining the three-dimensional topography of the target location of the biological object comprises:
determining the three-dimensional topography of the target location of the organism based on an image moire method and/or a holography method.
Priority Applications (1)
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