CN219270938U - Electroencephalogram signal acquisition device - Google Patents

Abstract

The application relates to an electroencephalogram signal acquisition device. Comprising the following steps: an electrical signal collector; a housing including a support portion; the flexible support piece is connected with the supporting part, is provided with at least one electric signal collector on one side that the flexible support piece deviates from the supporting part, and is provided with the electronic circuit who is connected with electric signal collector in the casing, and the flexible support piece is used for laminating user's head, and the compression deformation is to the plane at supporting part place under the exogenic action in order to enlarge the laminating area with user's head. Due to the deformation of the flexible supporting piece, the elastic force in the opposite direction can be provided, so that the first attaching structure and the second attaching structure can be in contact with the skin of a wearer with certain force, the skin of the wearer can be tightly attached, and high-quality electroencephalogram signals are collected.

Description

Electroencephalogram signal acquisition device

Technical Field

The application relates to the technical field of brain-computer interfaces, in particular to an electroencephalogram signal acquisition device.

Background

Along with the development of medicine, the research of brain electrical signals plays a key role in many fields, and the brain electrical signals are physiological electrical signals of human brains, have strong randomness, contain various rhythms and also contain a great amount of information of human bodies. Since the electroencephalogram signals play an important role in various fields, the electroencephalogram signals need to be acquired.

In the conventional technology, brain-computer equipment of a wearable type is used for acquiring brain-computer signals of a wearer.

However, in the manner of the conventional technology, when the electroencephalogram signals of the wearer are acquired, the electrodes of the brain-computer device are not tightly contacted with the skin of the wearer due to different head shapes of different wearers, so that the quality of the acquired electroencephalogram signals is low.

Disclosure of Invention

In view of the above, it is desirable to provide an electroencephalogram signal acquisition apparatus capable of adaptively acquiring electroencephalogram signals of a wearer in accordance with the head shape of the wearer.

An electroencephalogram signal acquisition device, comprising: an electrical signal collector; a housing including a support portion; the flexible support piece is connected with the supporting part, the flexible support piece deviates from at least one be provided with on the one side of supporting part the electric signal collector, just be provided with in the casing with the electronic circuit that the electric signal collector is connected, the flexible support piece is used for laminating user's head, under the exogenic action pressurized deformation extremely the supporting part place plane in order to enlarge with the laminating area of user's head.

In one embodiment, the flexible support comprises: the first attaching structure is arranged on one side of the supporting part and is elastically connected with the supporting part; the second attached structure is arranged on the other side of the supporting part and is in elastic connection with the supporting part, the first attached structure and the second attached structure are symmetrically arranged, the first attached structure and the second attached structure are flexible structures, at least one electric signal collector is arranged on the first attached structure and the second attached structure, and the first attached structure and the second attached structure are used for being deformed under the action of external force to the plane where the supporting part is located so as to enlarge the attaching area of the head of a user.

In one embodiment, the first attaching structure and the second attaching structure each comprise at least one attaching piece and at least one flexible column, the attaching pieces and the flexible columns are in one-to-one correspondence, and the attaching pieces are elastically connected with the supporting parts through the flexible columns; the attaching piece is at least provided with one electric signal collector and is used for being deformed to the plane where the supporting part is located under the action of external force so as to enlarge the attaching area of the attaching piece and the head of the user.

In one embodiment, the attaching plate is used for rotating and deforming along two mutually perpendicular directions by taking the flexible column as an axis under the action of external force.

In one embodiment, the flexible supporting member is a curved surface structure, the top end of the curved surface structure is connected with the supporting portion, the curved surface structure is used for being deformed under pressure to the plane where the supporting portion is located under the action of external force so as to enlarge the fitting area with the head of the user, two ends of the curved surface structure are bent along the direction deviating from the supporting portion, and at least one electric signal collector is arranged on the curved surface structure.

In one embodiment, the flexible supporting member is a plurality of arc-shaped strip structures, one end of each arc-shaped strip structure is connected with the supporting portion, the other end of each arc-shaped strip structure is bent along the direction deviating from the supporting portion, and at least one electric signal collector is arranged on each arc-shaped strip structure.

In one embodiment, an electrical signal collector includes: the device comprises a flexible disk-shaped part and a plurality of electrode columns arranged on the surface of the flexible disk-shaped part, wherein the electrode columns are used for collecting brain electrical signals.

In one embodiment, the electrical signal collector further comprises: and the signal preprocessing circuit and the electrode columns form active electrodes.

In one embodiment, the support portion is provided with at least one electrical signal collector.

In one embodiment, the supporting portion is provided with a containing cavity, and one end of the flexible supporting member is contained in the containing cavity and connected with the supporting portion.

In one embodiment, the electroencephalogram signal acquisition apparatus further includes: the brain electricity acquisition head band, the flexible support piece is arranged on the inner side of the brain electricity acquisition head band.

In one embodiment, the electroencephalogram acquisition headband is a fully-closed annular band structure, the annular band comprises a partially-overlapped double-layer band-shaped structure, and the double-layer band-shaped structure is used for stretching and retracting to adjust the circumference of the annular band; or, the electroencephalogram acquisition head band is of a semi-closed elastic head band structure.

In one embodiment, the electronic circuit comprises a signal processing circuit, a power supply circuit and a communication circuit, wherein the power supply circuit and the signal processing circuit are respectively connected with the electric signal collector, and the communication circuit is connected with the signal processing circuit; the power supply circuit is used for supplying power to the electric signal collector; the signal processing circuit is used for processing the electroencephalogram signals acquired by the electric signal acquisition device; the communication circuit is used for transmitting the processed brain electrical signals to an external upper computer.

Above-mentioned electroencephalogram signal collection device through setting up the electrical signal collector to can gather the brain electrical signal of wearer, through setting up the casing, provide basic hardware structure for brain electrical signal collection device, through setting up flexible support piece, thereby can be under the exogenic action the compression deformation to the plane at supporting part place in order to enlarge the laminating area with user's head, thereby be convenient for when the user wears, can be according to the flexible adjustment of the head form and self-adaptation of wearer, improve the comfort level of wearer. And because the flexibility of flexible support piece is adjusted, also can provide a reverse elasticity to make the flexible support piece can be with certain dynamics and the skin contact of wearer, thereby can closely laminate the skin of wearer, thereby gather high-quality brain electrical signal.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic structural diagram of an electroencephalogram signal acquisition device according to an embodiment;

FIG. 2 is a schematic structural diagram of an electroencephalogram signal acquisition device according to another embodiment;

FIG. 3 is a disassembled structure diagram of an electroencephalogram signal acquisition device in one embodiment;

FIG. 4 is a combined structure diagram of an electroencephalogram signal acquisition device in one embodiment;

FIG. 5 is a schematic diagram of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 6 is a combined structure diagram of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 7 is a combined top view of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 8 is a side view of an electroencephalogram signal acquisition apparatus in combination according to another embodiment;

FIG. 9 is a schematic diagram of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 10 is a side view of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 11 is a schematic diagram of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 12 is a schematic diagram of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 13 is a schematic diagram of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 14 is a schematic diagram of a deformation of an electroencephalogram signal acquisition apparatus according to one embodiment;

FIG. 15 is a schematic diagram of an electroencephalogram signal acquisition apparatus according to another embodiment;

FIG. 16 is a schematic diagram of an electrical signal collector in one embodiment;

FIG. 17 is a block diagram of an electrical signal collector in one embodiment;

FIG. 18 is a front view of an electroencephalogram acquisition headband in one embodiment;

FIG. 19 is a side view of an electroencephalogram acquisition headband in one embodiment;

FIG. 20 is a front view of an electroencephalogram acquisition headband in another embodiment;

FIG. 21 is a side view of an electroencephalogram acquisition headband in another embodiment;

fig. 22 is a schematic structural diagram of an electroencephalogram signal acquisition apparatus according to another embodiment.

Reference numerals illustrate: 10-shell, 11-support part, 13-flexible support piece, 20-first attaching structure, 21-second attaching structure, 30-electric signal collector, 31-flexible column, 32-attaching piece, 201-first attaching piece, 202-first electric signal collector, 203-second electric signal collector, 211-second attaching piece, 212-third electric signal collector, 213-fourth electric signal collector, 31-flexible disk-shaped piece, 32-electrode column, 12-electroencephalogram collecting head band, 40-double-layer band structure, 50-power circuit, 60-communication circuit, 70-signal processing circuit.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.

Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

In one embodiment, as shown in fig. 1, there is provided an electroencephalogram signal acquisition apparatus including: an electrical signal collector 30, a housing 10, a flexible support 13. Wherein:

the housing 10 includes a support 11.

Specifically, the supporting portion 11 is fixed on the housing 10, and functions as a carrier, and a device for collecting brain signals of the user can be mounted on the supporting portion 11, and the setting position of the supporting portion 11 corresponds to the position of the back brain of the user, so that the device mounted on the supporting portion 11 can be in contact with the back brain of the user, and thus the brain signals of the user can be collected.

The flexible support piece 13 is connected with the supporting part 11, and the flexible support piece 13 is provided with at least one electric signal collector 30 on the side that deviates from the supporting part 11, and is provided with the electronic circuit who is connected with electric signal collector 30 in the casing 10, and the flexible support piece 13 is used for laminating user's head, and the compression deformation is in order to enlarge the laminating area with user's head to the plane that supporting part 11 is located under the exogenic action.

Specifically, the flexible supporting piece 13 is of a flexible structure, so that the flexible supporting piece 13 is stressed to deform to a certain extent, the self-adaptive adjusting capacity of the electroencephalogram signal acquisition device is improved, the flexible supporting piece has certain elasticity, and the wearing comfort of a user is also improved.

Illustratively, the flexible support 13 is made of a rubber material or a soft silica gel material.

Specifically, an electronic circuit is disposed in the casing 10, and is capable of supplying power to the electrical signal collector 30 and transmitting the brain electrical signal collected by the electrical signal collector 30.

In this embodiment, through setting up the electrical signal collector 30 to can gather the brain electrical signal of wearer, through setting up casing 10, provide basic hardware structure for brain electrical signal collection system, through setting up flexible support 13, thereby can be under the exogenic action the compression deformation to the plane at supporting part 11 place in order to enlarge the laminating area with user's head, thereby be convenient for when the user wears, can be according to the flexible adjustment of the head form and self-adaptation of wearer, improve the comfort level of wearer. Moreover, due to the flexible adjustment of the flexible supporting piece 13, a reverse elastic force is provided, so that the flexible supporting piece 13 can be in contact with the skin of a wearer with a certain force, the skin of the wearer can be closely attached, and high-quality electroencephalogram signals can be acquired.

In one embodiment, as shown in fig. 2, the flexible support 13 comprises: a first attachment structure 20, a second attachment structure 21. Wherein:

the first attaching structure 20 is disposed on one side of the supporting portion 11 and is elastically connected to the supporting portion 11.

The second attached structure 21 is arranged on the other side of the supporting part 11 and is elastically connected with the supporting part 11, wherein the first attached structure 20 and the second attached structure 21 are symmetrically arranged, the first attached structure 20 and the second attached structure 21 are flexible structures, at least one electric signal collector 30 is arranged on the first attached structure 20 and the second attached structure 21, and the first attached structure 20 and the second attached structure 21 are used for being pressed and deformed to the plane where the supporting part 11 is located under the action of external force so as to enlarge the attaching area with the head of a user.

Specifically, the first attaching structure 20 is elastically connected with the supporting portion 11, and the connecting portion is slightly deformed due to external force, so that the attaching structure can attach to the skin of a user, and the attaching structure can attach to users with different head types by adaptively adjusting the deformation degree. And because the reverse strength that deformation produced also can provide certain pressure for first attached structure 20 is inseparabler laminating on user's skin, and then makes the laminating of electric signal collector 30 can be inseparable on user's skin, thereby gathers user's brain electrical signal.

Specifically, the second attaching structure 21 is elastically connected with the supporting portion 11, and the connecting portion is slightly deformed due to external force, so that the attaching structure can attach to the skin of a user, and the attaching structure can attach to users with different head types by self-adaptively adjusting the deformation degree. And because the reverse strength that deformation produced also can provide certain pressure for second attached structure 21 more inseparable laminating is on user's skin, and then makes the laminating of electric signal collector 30 can be inseparable on user's skin, thereby gathers user's brain electrical signal.

Specifically, the first attaching structure 20 and the second attaching structure 21 are symmetrically arranged, so that the electroencephalogram signal acquisition device is even in stress when being worn, the force born by the first attaching structure 20 and the second attaching structure 21 is almost the same, and the deformation is almost the same, so that the electroencephalogram signal acquisition device is attached to the skin of a user under almost the same pressure, and the electroencephalogram signals of the user can be effectively acquired by the electric signal acquisition devices 30 on the first attaching structure 20 and the second attaching structure 21.

Specifically, the first attaching structure 20 and the second attaching structure 21 are elastic structures, so that the first attaching structure 20 and the second attaching structure 21 can be stressed to generate certain deformation, the self-adaptive adjustment capacity of the electroencephalogram signal acquisition device is further improved, certain elasticity is provided, and the wearing comfort of a user is also improved.

Illustratively, the first attaching structure 20 and the second attaching structure 21 are mainly made of rubber materials or soft silica gel materials, and thus are elastic structures.

Illustratively, fig. 3 is a structural exploded view of the electroencephalogram signal acquisition device, and fig. 4 is a structural diagram of the electroencephalogram signal acquisition device after being combined.

In this embodiment, by providing the first attaching structure 20 and the second attaching structure 21 symmetrical to each other, and at least one collecting electrode is provided on a side of the first attaching structure 20 and the second attaching structure 21 facing away from the supporting portion 11, an electroencephalogram signal of a user can be collected by the collecting electrode. And the first attaching structure 20 and the second attaching structure 21 are both elastically connected with the supporting portion 11, so that when a user wears the device, the device can be adjusted according to the head shape of the user, the comfort of the user is improved, and secondly, the first attaching structure 20 and the second attaching structure 21 are both elastic structures, so that the comfort of the user is further improved. Moreover, due to the elastic adjustment of the structure, an elastic force in the opposite direction is provided, so that the first attaching structure 20 and the second attaching structure 21 can be in contact with the skin of the wearer with a certain force, and can be tightly attached to the skin of the wearer, and high-quality electroencephalogram signals can be acquired.

In one embodiment, as shown in fig. 5, each of the first attaching structure 20 and the second attaching structure 21 includes at least one attaching piece 32 and at least one flexible post 31, the attaching pieces 32 and the flexible posts 31 are in one-to-one correspondence, and the attaching pieces 32 are elastically connected with the supporting portion 11 through the flexible posts 31.

The attaching piece 32 is at least provided with one electrical signal collector 30, and the attaching piece 32 is used for being pressed and deformed to the plane of the supporting part 11 under the action of external force so as to enlarge the attaching area with the head of the user.

Specifically, the attaching plate 32 is used for rotationally deforming in two mutually perpendicular directions with the flexible column 31 as an axis under the action of an external force.

Exemplary, as shown in fig. 6-8, a schematic structural diagram of an electroencephalogram acquisition apparatus including an attachment sheet 32 and a flexible column 31 is shown.

In this embodiment, by providing the flexible column 31 and the attaching plate 32, the first attaching structure 20 and the second attaching structure 21 can be adjusted according to the head shape of the wearer, so as to improve the comfort of the wearer, and provide an elastic force in the opposite direction, so that the first attaching structure 20 and the second attaching structure 21 can be in contact with the skin of the wearer with a certain force, and thus can be tightly attached to the skin of the wearer, so that high-quality electroencephalogram signals can be collected. The attachment piece 32 is connected with the supporting portion 11 through the flexible column 31, so that deformation can be larger, and applicability is wider.

In one embodiment, as shown in fig. 9 and 10, the flexible supporting member 13 is a curved surface structure, the top end of the curved surface structure is connected with the supporting portion 11, the curved surface structure is used for being deformed to the plane of the supporting portion 11 under the action of external force so as to enlarge the fitting area with the head of the user, wherein two ends of the curved surface structure are bent along the direction away from the supporting portion 11, and at least one electric signal collector 30 is arranged on the curved surface structure.

In this embodiment, the flexible supporting member 13 is configured to have a curved surface structure, so that the flexible supporting member 13 has a simple structure and is convenient to manufacture.

In one embodiment, as shown in fig. 11, the flexible supporting member 13 is a plurality of arc-shaped strip structures, one end of each arc-shaped strip structure is connected with the supporting portion 11, the other end of each arc-shaped strip structure is bent along a direction away from the supporting portion 11, and at least one electrical signal collector 30 is disposed on each arc-shaped strip structure.

In the present embodiment, by providing the flexible support 13 in a plurality of arc-shaped bar-like structures, the contact area between the flexible support 13 and the back brain of the wearer can be made as large as possible.

In one embodiment, as shown in fig. 12, the supporting portion 11 is provided with a receiving cavity, and one end of the flexible supporting member 13 is received in the receiving cavity and connected to the supporting portion 11.

Specifically, the first attaching structure 20 is accommodated in the accommodating cavity at the first end, and the second attaching structure 21 is accommodated in the accommodating cavity at the second end.

Specifically, the housing 10 is a rigid structure for supporting the components. The receiving cavities of the first and second ends of the support 11, which are disposed opposite to each other, can be respectively coupled with the first and second attaching structures 20 and 21 in a fitting manner, so that the first and second attaching structures 20 and 21 can be fixed to the support 11.

In this embodiment, the accommodating cavities are formed at the opposite ends of the supporting portion 11, so that the supporting portion 11 can be respectively connected with the first attaching structure 20 and the second attaching structure 21 in a jogged manner, and the fixing of the first attaching structure 20 and the second attaching structure 21 is facilitated.

In one embodiment, as shown in fig. 13, the supporting portion 11 is provided with an electrical signal collector 30, and the electrical signal collector 30 is located on the central axis of the supporting portion 11.

Specifically, an electrical signal collector 30 is also disposed on the central axis of the supporting portion 11, so that the electroencephalogram signals of the user in the middle area of the first attaching structure 20 and the second attaching structure 21, which are not covered by the first attaching structure 20 and the second attaching structure 21, can be collected, the gaps of the electroencephalogram signals collected by the first attaching structure 20 and the second attaching structure 21 can be made up, and the electroencephalogram signals of the user in the larger area of the back brain can be collected, so that the quality of the obtained electroencephalogram signals is higher and more accurate.

In this embodiment, an electrical signal collector 30 is also disposed on the central axis of the supporting portion 11, so that a more comprehensive electroencephalogram signal can be collected, and the quality and accuracy of the electroencephalogram signal can be improved.

In one embodiment, the first attaching structure 20 is configured to rotationally deform about a first connecting portion of the first attaching structure 20, which is a portion of the first attaching structure 20 connected to the supporting portion 11, under an external force.

The second attaching structure 21 is configured to rotationally deform under an external force with a second connection portion of the second attaching structure 21 as an axis, where the second connection portion is a portion where the second attaching structure 21 is connected to the supporting portion 11, and the first connection portion and the second connection portion are disposed opposite to each other.

Specifically, the first attaching structure 20 and the second attaching structure 21 are respectively connected with the supporting portion 11 in an elastic manner, and can be deformed in a rotating manner by taking the connected portion as an axis, so that the comfort of the wearer can be improved by means of self-adaptive elastic adjustment according to the head shape of the wearer. In addition, due to the rotational deformation of the fan-shaped structure, a reverse elastic force is provided, so that the first attaching structure 20 and the second attaching structure 21 can be in contact with the skin of the wearer with a certain force, and can be tightly attached to the skin of the wearer, and high-quality electroencephalogram signals are collected

Illustratively, as shown in fig. 14, the first attaching structure 20 and the second attaching structure 21 are capable of rotational deformation in the direction of the arrow in the drawing, so that they can be adaptively adjusted according to the head shape of the wearer.

In this embodiment, since the first attaching structure 20 and the second attaching structure 21 are elastically connected to the supporting portion 11, the first attaching structure 20 and the second attaching structure 21 can be rotationally deformed about the connected portion as an axis, so as to adapt to different head shapes, and a force is provided to press toward the scalp direction, so that the first attaching structure 20 and the second attaching structure 21 are closely attached to the head.

In one embodiment, as shown in fig. 15, the first attachment structure 20 includes a first attachment sheet 201 and a first electrical signal collector 202 and a second electrical signal collector 203 disposed on the first attachment sheet 201.

Specifically, the first electrical signal collector 202 and the second electrical signal collector 203 are symmetrically distributed on the first attachment piece 201, so that an electroencephalogram signal of a region where the back brain of the wearer is as large as possible can be collected. And the deformation stress of the first attaching structure 20 is uniform due to the symmetrical distribution, so that the first attaching structure 20 is more stable.

The second attaching structure 21 includes a second attaching plate 211 and third and fourth electric signal collectors 212 and 213 provided on the second attaching plate 211.

Specifically, the third electrical signal collector 212 and the fourth electrical signal collector 213 are symmetrically distributed on the second attachment piece 211, so that an electroencephalogram signal of a region where the back brain of the wearer is as large as possible can be collected. And the deformation stress of the second attaching structure 21 can be uniform due to the symmetrical distribution, so that the second attaching structure 21 is more stable.

Illustratively, through the first electrical signal collector 202, the second electrical signal collector 203, the third electrical signal collector 212, the fourth electrical signal collector 213 and the electrical signal collectors 30 disposed on the supporting portion 11, the radian formed by the five electrical signal collectors 30 can adapt to the radian of the occipital region behind the brain of 95% of the user, so as to be capable of being attached to the skin of the hindbrain of the user to the greatest extent.

In this embodiment, the first electrical signal collector 202 and the second electrical signal collector 203 are disposed on the first attaching plate 201 to form the first attaching structure 20, and the third electrical signal collector 212 and the fourth electrical signal collector 213 are disposed on the second attaching plate 211 to form the second attaching structure 21, so that the first attaching structure 20 and the second attaching structure 21 are uniformly stressed when undergoing rotational deformation, and electroencephalogram signals of a region with the biggest back brain of the wearer can be collected.

In one embodiment, as shown in fig. 16, the electrical signal collector 30 includes: the device comprises a flexible disk 31 and a plurality of electrode columns 32 arranged on the surface of the flexible disk 31, wherein the electrode columns 32 are used for acquiring brain electrical signals.

Illustratively, as shown in fig. 17, a block diagram of the electrical signal collector 30 is shown.

Specifically, the flexible disk 31 and the electrode column 32 are mainly made of rubber or soft silica gel. The outer end face of the electrode column 32, which is remote from the end of the flexible disk 31, is covered with a conductive silver layer, which is capable of collecting bioelectric signals.

In this embodiment, the electrical signal collector 30 and the electrode post 32 are each of a flexible material so as to facilitate contact with the user's hindbrain skin, and the flexible material also allows the electrode post 32 to be deformed for lateral and longitudinal adjustment to contact different head types of scalp. The position can be flexibly adjusted. And realizing higher-quality electroencephalogram signal acquisition.

In one embodiment, referring still to fig. 17, the plurality of electrode posts 32 are each equidistant from the center of the flexible disk 31, and the distances between adjacent electrode posts 32 are also equal.

In this embodiment, the electrode columns 32 are uniformly distributed on the surface of the flexible disk 31 and are distributed on the surface of the flexible disk 31 in an annular array, so that the electrode columns can uniformly contact the hindbrain skin of a user from a plurality of positions, and high-quality electroencephalogram signal acquisition is realized.

In one embodiment, with continued reference to fig. 17, the outer side of the end of the electrode post 32 remote from the flexible disk 31 is an arcuate surface.

Illustratively, the electrode post 32 is made of medical silica gel, and has a hardness of 15-25A, preferably a low-hardness medical silica gel with biocompatibility, and the formed medical silica gel has a smooth surface without burrs, soft texture, high elasticity, and can be well attached to the skin, and is comfortable and safe.

Specifically, the electrical signal collector 30 further includes a signal preprocessing circuit, and the signal preprocessing circuit forms an active electrode with the plurality of electrode columns. The signal preprocessing circuit may include an amplifier that can amplify the brain electrical signal and drive transmission of the brain electrical signal.

In the present embodiment, the outer side surface of the end portion of the electrode post 32 remote from the flexible disk 31 is provided as an arc surface, thereby improving the comfort of the electrode post 32 in use.

In one embodiment, as shown in fig. 12, the electroencephalogram signal acquisition apparatus includes an electroencephalogram acquisition headband 12, the electroencephalogram acquisition headband 12 includes a flexible support 13, and the flexible support 13 is disposed inside the electroencephalogram acquisition headband 12.

In one embodiment, as shown in fig. 18, the electroencephalogram acquisition headband 12 is a fully-enclosed annular band structure, the annular band comprising a partially overlapping double-layered band structure 40, the double-layered band structure 40 being adapted for telescoping movement to adjust the circumference of the annular band. As shown in fig. 19, a side view of the electroencephalogram acquisition headband 12 is shown.

In this embodiment, the electroencephalogram acquisition headband 12 is used for fixing the first fan-shaped structure 20 and the second fan-shaped structure 21 in the hindbrain region of a user, and the circumference of the electroencephalogram acquisition headband 12 can be adjusted by telescoping, so that different head shapes can be adapted.

In one embodiment, as shown in fig. 20, the electroencephalogram acquisition headband 12 is a semi-closed elastic headband structure. As shown in fig. 21, a side view of the electroencephalogram acquisition headband 12 is shown.

Specifically, the electroencephalogram acquisition headband 12 is made of an elastic material, and is kept in shape by means of elastic tension of the electroencephalogram acquisition headband 12, and when a user wears the electroencephalogram acquisition headband 12, the electroencephalogram acquisition headband 12 can be fixed on the head of the user by means of resilience of the electroencephalogram acquisition headband. And the semi-closed head band is adopted, so that the forehead of a user can be prevented from being bound and pressure can be applied to the forehead of the user, and the wearing comfort of the user is improved.

In the present embodiment, by designing the electroencephalogram acquisition headband 12 to be a semi-closed elastic headband structure, the comfort of wearing by the user can be improved.

In one embodiment, as shown in fig. 22, an electronic circuit is provided in the supporting portion 11, the electronic circuit includes a power supply circuit 50, a communication circuit 60, and a signal processing circuit 70, the power supply circuit 50 and the signal processing circuit 70 are respectively connected to the electric signal collector 30, and the communication circuit 60 is connected to the signal processing circuit 70.

The power circuit 50 is used to power the electrical signal collector 30.

Specifically, in order to ensure the normal operation of the electroencephalogram signal acquisition apparatus, a power supply circuit 50 including a battery and necessary connection lines and circuit boards is provided in the support portion 11, and is capable of supplying power to each component of the electroencephalogram signal acquisition apparatus.

The signal processing circuit 70 is used for processing the brain electrical signals acquired by the electrical signal acquisition unit.

Specifically, the signal processing circuit 70 may include an amplifier, a filter circuit, and the like, and may perform actions such as amplifying, filtering, rectifying, and the like on the acquired electroencephalogram signal, so that the electroencephalogram signal is more accurate.

The communication circuit 60 is used for transmitting the processed brain electrical signals to an external upper computer.

Specifically, the communication circuit 60 may be a wireless communication circuit 60, such as a bluetooth module, and is connected to the electric signal collector 30, and transmits the electric signal collected by the electric signal collector 30 and processed by the signal processing circuit 70 to an external host computer, so as to facilitate the user to obtain the brain electrical signal of the wearer.

In this embodiment, by setting the power circuit 50, the communication circuit 60 and the signal processing circuit 70, power can be supplied to the electroencephalogram signal acquisition device, normal operation of the electroencephalogram signal acquisition device is ensured, and the electroencephalogram signal acquired by the electroencephalogram signal acquisition device can be transmitted, so that a user can acquire the electroencephalogram signal of the wearer conveniently.

In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (13)

1. An electroencephalogram signal acquisition device, characterized by comprising:

an electrical signal collector;

a housing including a support portion;

the flexible support piece is connected with the supporting part, the flexible support piece deviates from at least one be provided with on the one side of supporting part the electric signal collector, just be provided with in the casing with the electronic circuit that the electric signal collector is connected, the flexible support piece is used for laminating user's head, under the exogenic action pressurized deformation extremely the supporting part place plane in order to enlarge with the laminating area of user's head.

2. The device of claim 1, wherein the flexible support comprises:

the first attaching structure is arranged on one side of the supporting part and is elastically connected with the supporting part;

the second attached structure is arranged on the other side of the supporting part and is in elastic connection with the supporting part, the first attached structure and the second attached structure are symmetrically arranged, the first attached structure and the second attached structure are flexible structures, at least one electric signal collector is arranged on the first attached structure and the second attached structure, and the first attached structure and the second attached structure are used for being deformed under the action of external force to the plane where the supporting part is located so as to enlarge the attaching area of the head of a user.

3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,

the first attaching structure and the second attaching structure comprise at least one attaching piece and at least one flexible column, the attaching pieces and the flexible columns are in one-to-one correspondence, and the attaching pieces are elastically connected with the supporting parts through the flexible columns;

the attaching piece is at least provided with one electric signal collector and is used for being deformed to the plane where the supporting part is located under the action of external force so as to enlarge the attaching area of the attaching piece and the head of the user.

4. A device according to claim 3, wherein the attachment tab is adapted to deform rotationally in two mutually perpendicular directions about the flexible post under the influence of an external force.

5. The device according to claim 1, wherein the flexible supporting member is a curved surface structure, the top end of the curved surface structure is connected with the supporting portion, the curved surface structure is used for being deformed to the plane of the supporting portion under the action of external force so as to enlarge the fitting area with the head of the user, two ends of the curved surface structure are bent along the direction away from the supporting portion, and at least one electrical signal collector is arranged on the curved surface structure.

6. The device of claim 1, wherein the flexible support member is a plurality of arc-shaped bar structures, one end of each of the arc-shaped bar structures is connected to the support portion, the other end of the arc-shaped bar structure is bent in a direction away from the support portion, and at least one of the electrical signal collectors is disposed on the arc-shaped bar structure.

7. The apparatus of claim 1, wherein the electrical signal collector comprises: the device comprises a flexible disk-shaped part and a plurality of electrode columns arranged on the surface of the flexible disk-shaped part, wherein the electrode columns are used for collecting brain electrical signals.

8. The apparatus of claim 7, wherein the electrical signal collector further comprises: and the signal preprocessing circuit and the electrode columns form active electrodes.

9. The device of claim 1, wherein the support is provided with at least one electrical signal collector.

10. The device according to claim 1, wherein the supporting portion is provided with a receiving cavity, and one end of the flexible supporting member is received in the receiving cavity and connected with the supporting portion.

11. The apparatus as recited in claim 1, further comprising:

the brain electricity acquisition head band, the flexible support piece is arranged on the inner side of the brain electricity acquisition head band.

12. The apparatus of claim 11, wherein the device comprises a plurality of sensors,

the electroencephalogram acquisition head belt is of a totally-enclosed annular belt structure, the annular belt comprises a partially-overlapped double-layer belt-shaped structure, and the double-layer belt-shaped structure is used for stretching and moving to adjust the circumference of the annular belt; or alternatively, the first and second heat exchangers may be,

the electroencephalogram acquisition head band is of a semi-closed elastic head band structure.

13. The device of claim 1, wherein the electronic circuit comprises a signal processing circuit, a power supply circuit, and a communication circuit, the power supply circuit and the signal processing circuit being respectively connected to the electrical signal collector, the communication circuit being connected to the signal processing circuit;

the power supply circuit is used for supplying power to the electric signal collector;

the signal processing circuit is used for processing the electroencephalogram signals acquired by the electric signal acquisition device;

the communication circuit is used for transmitting the processed brain electrical signals to an external upper computer.

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