CN111839531A - Brain detection device - Google Patents
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- CN111839531A CN111839531A CN202010711365.0A CN202010711365A CN111839531A CN 111839531 A CN111839531 A CN 111839531A CN 202010711365 A CN202010711365 A CN 202010711365A CN 111839531 A CN111839531 A CN 111839531A
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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
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
- A61B5/14553—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases specially adapted for cerebral tissue
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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
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0075—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy
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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
Abstract
The invention discloses a brain detection device, which belongs to the field of precision photoelectric medical science and technology and comprises the following components: luminescence unit, detecting element and straining device, straining device includes the elasticity skeleton, the elasticity skeleton is the coronal, luminescence unit reaches the detecting element sets up the elasticity skeleton is inboard, the elasticity skeleton is arranged by the arc pole annular radiation more than 4 and is formed. The tensioning mechanism is used for carrying out self-adaptive adjustment according to the size of the head of the subject and recording the wearing position; the light-emitting unit is used for inputting a near-infrared signal, wherein the near-infrared signal is radiated outwards after passing through the brain; and the detection unit is used for receiving the near-infrared signals radiated outwards after passing through the brain so as to obtain a detection result. The device can be suitable for detecting different head sizes, and realizes accurate repeated measurement of the same subject.
Description
Technical Field
The invention belongs to the technical field of precision photoelectric medical treatment, and particularly relates to a brain detection device.
Background
The brain detection device mainly utilizes a near infrared spectrum technology to obtain brain activity data, and the functional near infrared spectrum technology utilizes good scattering performance of main components of blood to 600-900nm near infrared light, so that the change conditions of oxyhemoglobin and deoxyhemoglobin during brain activity are obtained. The technology is applied to the research in multiple fields of advanced cognition, developing psychology, abnormal psychology and the like under the natural situation at present. The technology has the advantages of low manufacturing cost, good portability, no noise, no non-invasiveness, no excessive sensitivity to the tested action in the experimental process and the like.
The existing brain detection device mainly adopts an elastic material to cover the head, an earpick and other slender tools are used for pulling open the hair after the device is worn, and then through a module consisting of a light-emitting unit and a receiving unit, the good scattering property of the main components of blood to 600-plus-900 nm near infrared light is achieved at the position close to the cerebral cortex, so that the change conditions of oxyhemoglobin and deoxyhemoglobin during brain activities are obtained.
However, the existing brain detection device has the following defects:
1. the size and shape of human brain are different greatly, the adaptability of the equipment is poor, and the brain function signal output of different people cannot be met simultaneously;
2. the repeatability is poor, and a subject cannot be accurately positioned during repeated measurement, so that the repeatability of an output signal is poor, and the value of data analysis and comparison is reduced;
3. the signal noise is large, the black hair absorbs more near infrared light emitted by the sensor, the loss of the infrared light is large, and the other hair shields the light path to further lose energy, so that the received useful signals are less and more impurities are generated, although the interference is avoided by using a mode of poking the hair by using an elongated tool such as an earpick after the hair is worn, the mode consumes more time and is very inconvenient in practical application;
4. The optical fiber integrated module is adopted, as the number of head measuring points is large, optical fibers need to be led out from each measuring point, the system is large and heavy, the comfort of a subject is poor, and the brain signal test result can be influenced by fatigue.
Disclosure of Invention
In view of the above drawbacks and needs of the prior art, the present invention provides a brain examination apparatus, which is adaptable to examination of different head sizes and can achieve accurate and repeated measurements of the same subject.
To achieve the above object, the present invention provides a brain examination apparatus, comprising: the device comprises a light-emitting unit, a detection unit and a tensioning mechanism;
the tensioning mechanism comprises an elastic framework, the elastic framework is in a crown shape, the light-emitting unit and the detection unit are arranged on the inner side of the elastic framework, and the elastic framework is formed by radially arranging more than 4 arc-shaped rods in an annular mode.
Preferably, the arc-shaped rod is an arc-shaped elastic pressure rod.
Preferably, the light-emitting unit comprises an infrared transmitting module, the detecting unit comprises an infrared receiving module, and the transmitting module and the receiving module are embedded in the inner side of the arc-shaped rod.
Preferably, the inner side of the arc-shaped rod is provided with a strip-shaped boss, the boss is provided with a hole, and the sending module and the receiving module are embedded in the hole.
Preferably, a scale is arranged on the surface of the arc-shaped rod.
Preferably, the lower end of the strip-shaped boss is provided with a component for pulling hair open.
Preferably, the lower end of the strip-shaped boss is conical.
Preferably, the apparatus further comprises: a processing unit;
the processing unit is used for controlling the light-emitting unit to send near-infrared signals according to a preset rule, and processing the signals received by the detection unit to obtain a detection result.
Preferably, the apparatus further comprises: a power interface;
the power interface is respectively connected with the light-emitting unit and the detection unit.
Preferably, a processing unit protection cover is provided for the processing unit;
the device further comprises: and the pan head screw is used for fixing the power interface and the processing unit protective cover.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) the tensioning mechanism can adapt to brains with different shapes and sizes, and has high adaptability;
(2) the wearing position of a subject can be calibrated after the wearing is finished through the scale and the sensing device on the arc-shaped rod of the tensioning mechanism, so that the repeated accurate measurement of the same subject can be met;
(3) The hair is separated by adopting a conical structure with a parting combing function so as to reduce hair interference and reduce signal noise;
(4) the sending module and the receiving module are arranged on the arc-shaped rod of the tensioning mechanism, so that the structure is simple and reliable, the use is convenient, the whole equipment is light, the problems that the equipment is huge due to too much optical fiber winding, the test performance is affected due to too heavy equipment and the like are solved, and the user experience is enhanced;
(5) the number of the measuring points in unit area is increased by arranging the light-emitting units and the detecting units on the arc-shaped rods of the tensioning mechanisms with the net branches in different topological structures, so that the spatial resolution of the equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of a brain examination apparatus according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a layout of components of an apparatus according to an embodiment of the present invention;
FIG. 3 is a sectional view of an arc-shaped elastic compression bar according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a sensor arrangement provided by an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of a toggle structure provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a scale structure provided by an embodiment of the present invention;
FIG. 7 is a diagram of a circuit configuration control provided by an embodiment of the present invention;
FIG. 8 is a schematic diagram of an apparatus according to an embodiment of the present invention;
the system comprises a power interface 1, a light-emitting unit 2, a detection unit 3, a tensioning mechanism 4, a brain detection device 5, a human brain 6, a pan head screw 7, a processing unit protective cover 8, an arc-shaped elastic pressure rod 9, a processing unit 10, an infrared sensor 11, a receiving device 12, a scale 13, a receiving module 14, a sending module 15 and a poking-out piece 16.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention provides a brain detection device, which can realize detection of different head sizes, when a system works in the face of different target groups, accurate and repeated measurement can be realized only by contrasting scales and not replacing equipment, equipment debugging links are reduced, the detection efficiency is obviously improved, the accuracy of user evaluation is increased, and the user experience is enhanced.
Fig. 1 is a schematic structural diagram of a brain detection apparatus according to an embodiment of the present invention, including: the device comprises a power interface 1, a light-emitting unit 2, a detection unit 3 and a tensioning mechanism 4;
wherein, straining device 4 includes elastic skeleton, and elastic skeleton is the crown shape, and luminescence unit 2 and detecting element 3 set up at elastic skeleton inboard, and elastic skeleton is arranged by the annular radiation of more than 4 arc poles and forms.
The light-emitting unit 2 and the detection unit 3 are both connected with the power interface 1;
specifically, the tensioning mechanism 4 is used for carrying out self-adaptive adjustment according to the head size of the subject and recording the wearing position;
the light emitting unit 2 is used for inputting near infrared signals, wherein the near infrared signals are radiated outwards after passing through the brain;
and the detection unit 3 is used for receiving the near-infrared signals radiated outwards after passing through the brain so as to obtain a detection result.
In the embodiment of the invention, the structural form of the arc-shaped rod of the tensioning mechanism is not limited to the arch-shaped self-adaptive structure in the attached drawings, and can also be a dendritic comb-shaped structure, an elliptical structure, an I-shaped structure and the like formed by branching the framework.
In the embodiment of the invention, the self-adaptive adjustment mode of natural contraction of the arc-shaped rod of the tensioning mechanism is not limited to the mode of pressing the arc-shaped rod of the tensioning mechanism by external force and the like, and the self-adaptive adjustment mode can also be realized by a motor, a rope and the like.
In the embodiment of the invention, the connection form of the arc-shaped rod of the tensioning mechanism in the attached drawings is not limited to one node, and 2 or more nodes are covered, and the length of the arc-shaped rod of the tensioning mechanism can be determined according to actual needs.
Fig. 2 is a schematic diagram showing the components of an apparatus according to an embodiment of the present invention, wherein each of the curved rods is a curved elastic pressing rod 9, the curved elastic pressing rod 9 is used for automatically expanding according to the size of the head of the subject to adapt to the shape of the head of the subject, and a cross-sectional view of the shape structure of the curved elastic pressing rod 9 is shown in fig. 3.
As shown in fig. 4, a scale 13 is arranged on the surface of the arc-shaped elastic pressure rod 9; as shown in fig. 6, the scale is used to record the position worn by the subject after the subject wears it.
As shown in fig. 4, the light emitting unit 2 includes an infrared transmitting module 15, the detecting unit 3 includes an infrared receiving module 14, and the transmitting module 15 and the receiving module 14 are embedded inside the arc-shaped elastic pressing rod 9.
Further, the inner side of the arc-shaped elastic pressure rod 9 is provided with a strip-shaped boss, the boss is provided with a hole, and the sending module 15 and the receiving module 14 are embedded in the hole.
Specifically, a plurality of infrared sensors and a plurality of receiving devices are embedded in the inner side of the arc-shaped elastic pressure rod 9; the infrared sensors on each arc-shaped elastic pressure rod 9 form a group of sending modules 15; the receiving devices on each arc-shaped elastic pressure rod 9 form a group of receiving modules 14;
The transmitting modules 15 constitute a light emitting unit 2, and the receiving modules 14 constitute a detecting unit 3.
In the embodiment of the present invention, the distance between the sensors may be determined according to actual needs, and the embodiment of the present invention is not limited uniquely.
In the embodiment of the present invention, the receiver device may be a photoelectric sensor, an electroencephalogram sensor, an electromagnetic sensor, a pressure sensor, a heat sensor, an ultrasonic sensor, or the like.
In the embodiment of the present invention, the material of each component is not limited to ABS, aluminum alloy, PC, glass fiber, carbon fiber, and the like.
As shown in fig. 5, the lower end of the bar-shaped boss is provided with a member 16 for plucking hair, and the plucking member 16 is used for plucking hair.
Furthermore, the lower end of the strip-shaped boss is conical, and the hair can be pulled open when the hair-poking device is worn by using the conical structure.
In the embodiment of the present invention, the opening member 16 is not limited to the triangular comb tooth structure in the drawings, but may be trapezoidal, circular, rhombic, and the like.
As shown in fig. 2, the pan head screw 7 is used to fix the processing unit protective cover 8 and the power interface 1; the processing unit protective cover 8 is connected with the framework through threads, and a processing unit 10 is fixed below the processing unit protective cover 8; one branch on the framework is an arc-shaped elastic pressure rod 9, and the infrared sensor 11 and the receiving device 12 are respectively fixed in a small hole of the arc-shaped elastic pressure rod 9;
Wherein, the infrared sensor 11 connects the circuit to form the sending module 15; the receiving device 12 is connected to the line to form a receiving module 14.
The processing unit 10 is configured to control the light emitting unit 2 to transmit a near-infrared signal according to a preset rule, and process the signal received by the detecting unit 3 to obtain a detection result.
As shown in fig. 7, the processing unit 10 includes: the device comprises a data transmission module, a data processing module, a light-emitting unit control module, a detection unit control module and a circuit self-checking module;
the power interface supplies power to the data transmission module, the data processing module, the light-emitting unit control module, the detection unit control module and the circuit self-checking module;
the circuit self-checking module is used for realizing self-checking of the system circuit after the system is powered on;
the data processing module is used for controlling the light-emitting unit control module to realize light-emitting logic and further controlling the light-emitting unit to send a near-infrared signal through the light-emitting unit control module; meanwhile, the control module of the control detection unit detects the near infrared light radiated by the brain through the detection unit and processes, calculates and receives data;
the data transmission module realizes the transmission of the processed data according to the specified data packet format.
In the embodiment of the invention, when the device is worn, the poking pieces 16 on the arc-shaped elastic pressure rods 9 corresponding to the ears and the nose bridge on the two sides are respectively aligned to the ears and the nose bridge on the two sides, and after the device is worn, the position of the receiving device on the corresponding scale meeting the preset requirement in the receiving module and the serial number of the receiving device are recorded so as to perform repeated measurement and positioning.
Specifically, the upper edge of the ear and the bridge of the nose are corresponding positions of the lowest end of the poking piece 16, which can be understood as 0 position, after the device is worn, when the receiving end displays normal signals (namely, the signal noise is lowest), scale position data corresponding to the receiving device when the signal noise on the ear and the bridge of the nose is lowest, namely, a receiving hole position corresponding to the receiving device when the signal noise is lowest, when the same subject is detected next time, the lowest end of the poking piece 16 corresponds to the upper edge of the ear and the bridge of the nose, and then, the accurate repeated measurement of the same subject can be realized by detecting according to the recorded receiving device on the receiving device hole position.
Furthermore, a scale is arranged on the arc-shaped elastic pressure rod 9 corresponding to the ears and the bridge of the nose on the two sides.
Fig. 8 is a schematic diagram of a device according to an embodiment of the present invention, when a subject wears the detection device, the device will automatically expand by the arc-shaped elastic pressure rod 9 according to the size of the head of the subject to adapt to the shape of the head of the subject, the scale 1 designed on the arc-shaped elastic pressure rod 9 will calibrate the optimal position worn by the subject for repeated measurement, and the plucking element 16 will separate the hair to reduce the hair interference.
After the wearing is finished, after the power supply is accessed through the power supply interface 1, the processing unit 10 controls the light-emitting unit 2 to input near-infrared signals according to different frequencies and fixed periods, the signals are radiated outwards after passing through the brain and received by the detection unit 3 at a specific distance around, and the signals are returned to the processing unit 10 to be subjected to analog-to-digital conversion and then output to computer equipment to implement analysis and diagnosis result output.
The specific distance may be determined according to an arrangement manner of the sensors in the detection unit, and the embodiment of the present invention is not limited uniquely.
According to the brain detection device, the external power supply is connected through the power supply interface 1, signal transmission and communication with external equipment are achieved, the detection device 5 carries out near-infrared photoelectric radiation detection on the human brain 6 through the combined action of the light emitting unit 2 and the detection unit 3, the tensioning mechanism 4 can be used for adapting to human brain models with different sizes and shapes, repeated accurate measurement of the same subject can be met under the calibration of the scale 13, meanwhile, the hair is separated under the parting and combing effect of the poking-off piece 16, the interference of the hair on the signals is reduced, the detection accuracy and reliability are improved, and the user experience is remarkably improved.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A brain examination apparatus, comprising a light emitting unit and a detection unit, characterized in that the brain examination apparatus further comprises: a tensioning mechanism; the tensioning mechanism comprises an elastic framework, the elastic framework is in a crown shape, the light-emitting unit and the detection unit are arranged on the inner side of the elastic framework, and the elastic framework is formed by radially arranging more than 4 arc-shaped rods in an annular mode.
2. The device of claim 1, wherein the curved bar is a curved resilient strut.
3. The device according to claim 1 or 2, wherein the light emitting unit comprises an infrared transmitting module, the detecting unit comprises an infrared receiving module, and the transmitting module and the receiving module are embedded inside the arc-shaped rod.
4. The device as claimed in claim 3, wherein the arc-shaped rod is provided with a strip-shaped boss at the inner side, the boss is provided with a hole, and the sending module and the receiving module are embedded in the hole.
5. The apparatus of claim 4, wherein a scale is provided on the surface of the arcuate rod.
6. The device of claim 4, wherein the lower end of the bar-shaped projection is provided with a member for plucking hair.
7. The device of claim 6, wherein the lower end of the bar-shaped boss is tapered.
8. The apparatus of claim 1, further comprising: a processing unit;
the processing unit is used for controlling the light-emitting unit to send near-infrared signals according to a preset rule, and processing the signals received by the detection unit to obtain a detection result.
9. The apparatus of claim 8, further comprising: a power interface;
the power interface is respectively connected with the light-emitting unit and the detection unit.
10. A device according to claim 9, characterized in that a processing unit protective cover is provided for the processing unit;
the device further comprises: and the pan head screw is used for fixing the power interface and the processing unit protective cover.
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| CN202010711365.0A CN111839531A (en) | 2020-07-22 | 2020-07-22 | Brain detection device |
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| CN202010711365.0A CN111839531A (en) | 2020-07-22 | 2020-07-22 | Brain detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777058A (en) * | 2021-09-09 | 2021-12-10 | 武汉爱可泰思医疗科技有限公司 | Human brain dynamic body-simulating device and near-infrared optical instrument accuracy calibration method |
| CN114391841A (en) * | 2021-06-07 | 2022-04-26 | 丹阳慧创医疗设备有限公司 | Transcranial light regulation and control equipment |
| CN114931706A (en) * | 2021-10-19 | 2022-08-23 | 慧创科仪(北京)科技有限公司 | Hair poking assembly, hair poking device and transcranial light regulation and control equipment |
| CN115153532A (en) * | 2022-07-21 | 2022-10-11 | 武汉爱可泰思医疗科技有限公司 | Head-mounted flexible optical fiber assembly |
| WO2022257175A1 (en) * | 2021-06-07 | 2022-12-15 | 丹阳慧创医疗设备有限公司 | Head optical application apparatus, transcranial light regulation and control device, and near infrared device |
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