FNIRS brain imaging device and system
By designing an fNIRS brain imaging device with alternating transmitter and receiver modules, the problems of large size and poor testing performance of existing devices are solved, achieving lightweight and efficient brain imaging detection.
Patent Information
- Application Number
- CN202422461080.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Existing fNIRS brain imaging devices are large in size and have poor testing results, making them ineffective for brain imaging tests.
An fNIRS brain imaging device was designed, comprising a soft case, a control module, a detection board, and a communication module. The soft case has two rows of board slots. The detection board contains a transmitter module and a receiver module, which are arranged alternately to optimize the imaging effect. The detection waveform is transmitted via serial communication and WIFI. It supports external power supply and battery power supply, and uses dual-wavelength LEDs and photodiodes for brain imaging.
It achieves both portability and high detection effectiveness, improves the accuracy and efficiency of brain imaging, and allows for the setting of a sufficient number of detection points on the soft sleeve to reduce interference and provide high-quality imaging.
Smart Images
Figure CN223627487U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brain imaging device technology, and in particular to an fNIRS brain imaging device and system. Background Technology
[0002] fNIRS technology is based on the different absorption characteristics of oxyhemoglobin and deoxyhemoglobin in brain tissue by near-infrared light. When a part of the brain is active, blood flow to that area increases, leading to an increase in oxyhemoglobin concentration and a decrease in deoxyhemoglobin concentration. By measuring this change, brain activity can be indirectly understood. However, existing fNIRS brain imaging devices are large and have poor testing results, failing to provide an effective way to perform comprehensive brain imaging tests. Utility Model Content
[0003] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.
[0004] This invention provides an fNIRS brain imaging device that is relatively lightweight while ensuring detection effectiveness.
[0005] In a first aspect, the present invention provides an fNIRS brain imaging device, characterized in that it comprises:
[0006] A soft sleeve that can be fitted over a user's head; the inner side of the soft sleeve is provided with two rows of card slots, each row of card slots including multiple rubber slots, the two rows of card slots being spaced apart by a first preset distance; the two rows of card slots having the same number of rubber slots, and adjacent rubber slots within each row of card slots being spaced apart by the first preset distance.
[0007] Control module;
[0008] Multiple detection boards are provided, each detection board being disposed within a rubber slot. Each detection board includes a transmitting module and a receiving module arranged opposite to each other. The transmitting module is used to transmit an initial waveform to the user's brain region, and the transmitting module is capable of transmitting the initial waveform in any direction. The receiving module is used to receive the detection waveform obtained after the initial waveform passes through the brain region. In each detection board, the transmitting module and the receiving module are spaced apart by a first preset distance.
[0009] According to some embodiments of the first aspect of the present application, each row of the board card slot row includes a plurality of first regions and a plurality of second regions, each of the first regions and each of the second regions includes two rubber card slots, and the first regions and the second regions are alternately arranged in the board card slot row; in the first region, the receiving module of the detection board card is arranged at the first end of the rubber card slot, and the transmitting module is arranged at the second end of the rubber card slot; in the second region, the receiving module of the detection board card is arranged at the second end of the rubber card slot, and the transmitting module is arranged at the first end of the rubber card slot.
[0010] According to some embodiments of the first aspect of the present application, the first region in each row of the board card slot row is arranged opposite to the second region in another row of the board card slot row; the transmitting module in one row of the board card slot row can transmit the initial waveform to the direction of the receiving module in another row of the board card slot row.
[0011] According to some embodiments of the first aspect of the present application, the position of the first region in each row of the board card slot row corresponds to the position of the second region in another row of the board card slot row; the transmitting module in one row of the board card slot row can transmit the initial waveform to the direction of the receiving module in another row of the board card slot row.
[0012] According to some embodiments of the first aspect of the present application, the fNIRS brain imaging device further includes a host computer module and a communication module; the communication module is electrically connected with the control module, the communication module is used for transmitting the detection waveform acquired by the control module to the host computer module; the host computer module includes a display unit, and the display unit is used for displaying the detection waveform.
[0013] According to some embodiments of the first aspect of the present application, the communication module includes a serial communication unit and a WIFI communication unit; one end of the serial communication unit is electrically connected with the control module, and the other end of the serial communication unit is electrically connected with the host computer module; the WIFI communication unit is electrically connected with the control module, and the WIFI communication unit is communicatively connected with the host computer module.
[0014] According to some embodiments of the first aspect of the present application, the fNIRS brain imaging device further includes a power module, and the power module includes a power interface unit and a battery unit; the first end of the power interface unit is electrically connected with an external power supply, and the other end of the power interface unit is electrically connected with the control module, the transmitting module and the battery unit; the battery unit is also electrically connected with the control module and the transmitting module.
[0015] According to some embodiments of the first aspect of the present application, the transmitting module comprises a dual-wavelength LED lamp, the dual-wavelength LED lamp is electrically connected with the control module and can emit the initial waveform of two different wavelengths, the wavelengths of the initial waveform are 735 nm and 850 nm respectively; the receiving module comprises a photodiode, the photodiode can receive the detection waveform transmitted in any direction.
[0016] In a second aspect, the present application provides a brain imaging system, which comprises the fNIRS brain imaging device according to the above-mentioned aspect.
[0017] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. The drawings are intended for illustrative purposes and should not be considered as limiting on the present application.
[0019] Figure 1 is a structural schematic diagram of the fNIRS brain imaging device according to an embodiment of the present application;
[0020] Figure 2 is a structural schematic diagram of the fNIRS brain imaging device according to another embodiment of the present application;
[0021] Figure 3 is another structural schematic diagram of the fNIRS brain imaging device;
[0022] Figure 4 is a module schematic diagram of the fNIRS brain imaging device according to another scheme. DETAILED DESCRIPTION
[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0024] In the description of the utility model, it needs to be understood that, if the direction description, for example, the direction or position relation of the indication such as upper, lower, front, back, left, right is based on the direction or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, a particular orientation and operation, therefore, it can not be understood as the limitation of the utility model.
[0025] In the description of the utility model, if the first, second is described for the purpose of distinguishing technical features, it can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0026] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood broadly, and the technical personnel in the technical field can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0027] It should be noted that the embodiments of the present application do not limit the improvement of any method, and the function of the device or apparatus can be realized only based on the hardware architecture of the device or apparatus itself.
[0028] The concepts involved in the utility model are explained as follows:
[0029] fNIRS: functional near-infrared spectroscopy, functional near-infrared spectroscopy.
[0030] The embodiments of the utility model are further described in combination with the drawings.
[0031] Referring to Figures 1-2 , in a first aspect, the utility model embodiment provides a kind of fNIRS brain imaging device, comprising:
[0032] Soft cover, soft cover can be covered in the head of user;Two rows of board card slot rows are provided in the inside of soft cover, each row of board card slot row includes multiple rubber card slots, two rows of board card slot row interval first preset distance;The number of rubber card slot of two rows of board card slot row is same, and the adjacent rubber card slot in each row of board card slot row interval first preset distance;
[0033] Control module;
[0034] A plurality of detection board cards, one detection board card is arranged in one rubber card slot, each detection board card comprises a transmitting module and a receiving module arranged oppositely; the transmitting module is used for transmitting an initial waveform to a brain region of a user, and the transmitting module can transmit the initial waveform to any direction; the receiving module is used for receiving a detection waveform obtained after the initial waveform passes through the brain region; in each detection board card, the transmitting module and the receiving module are spaced apart by a first preset distance.
[0035] Specifically, Figure 1 is a structural schematic diagram of an fNIRS brain imaging device provided by one embodiment of the present application. The volume of the soft sleeve is adapted to the size of the head of the user, and the user only needs to wear the soft sleeve on the head to accept brain imaging detection. Further, each detection board card comprises a transmitting module and a receiving module, the transmitting module can transmit the initial waveform to any direction, for example Figure 1 the transmitting module L marked in the figure can transmit the initial waveform to any direction of the whole brain imaging device, when the initial waveform passes through the brain of the user, the oxygenated hemoglobin (O2Hb) and the deoxygenated hemoglobin (HHb) of the brain will absorb the initial waveform to obtain the detection waveform, and the receiving module can obtain the detection waveform. Then, the brain imaging device can obtain the content of the oxygenated hemoglobin (O2Hb) and the deoxygenated hemoglobin (HHb) of the brain of the user according to the detection waveform. Further, in order to improve the imaging effect, the first preset distance needs to ensure that the distance between the two sides of each detection board card and the adjacent detection board card is the same, so that the initial waveform transmitted by the transmitting module is obtained by the receiving module with the same distance after passing through the brain, and the best imaging effect is achieved.
[0036] Referring to Figures 1-2 , according to some embodiments of the present application, each row of board card slot rows comprises a plurality of first regions 1 and a plurality of second regions 2, each first region 1 and each second region 2 comprises two rubber card slots, and the first regions 1 and the second regions 2 are alternately arranged in the board card slot rows; in the first region 1, the receiving module of the detection board card is arranged at the first end of the rubber card slot, and the transmitting module is arranged at the second end of the rubber card slot; in the second region 2, the receiving module of the detection board card is arranged at the second end of the rubber card slot, and the transmitting module is arranged at the first end of the rubber card slot.
[0037] Specifically, as Figure 2As shown, the emitting module is marked as L and the receiving module is marked as P, the emitting module L in the detection board card in the first area 1 is at the lower end of the first area (i.e. the second end of the first area), the receiving module P is at the upper end (i.e. the first end of the first area), and the two detection board cards are arranged side by side, and the distance between the two detection board cards is the same as the distance between the emitting module L and the receiving module P in the detection board card; the arrangement mode of the detection board card in the second area 2 is opposite to that in the first area 1, i.e. the emitting module L is at the upper end (i.e. the first end of the second area), and the receiving module P is at the lower end (i.e. the second end of the second area), which can enable the receiving module P in the second area 2 to receive the initial waveform emitted by the emitting module L in the first area 1 in the transverse direction. Further, the arrangement mode that the first area 1 and the second area 2 are arranged alternately can enable the brain imaging device to set as many detection points as possible on the soft sleeve under the premise of obtaining optimal imaging. In the fNIR brain imaging device, it is necessary to keep the emitting module L and the receiving module P at an optimal distance, if the distance between the emitting module L and the receiving module P is too short, the time for the brain oxyhemoglobin (O2Hb) and deoxyhemoglobin (HHb) to absorb signals is too short, which can cause the imaging to not accurately reflect the real situation of the brain; if the distance is too long, the detection waveform received by the receiving module P can be disturbed by other signals; in addition, due to the limited area of the soft sleeve, if the distance is too long, the number of measurement points will also be reduced, which affects the imaging effect, therefore, there is an optimal distance for the brain imaging device to obtain optimal imaging. In the embodiment of the utility model, the emitting module L in the second area 2 emits the initial waveform to the receiving module P in the first area 1, although the receiving module P can receive the initial waveform emitted by all the emitting modules L in the same direction, but the arrangement that the first area 1 and the second area 2 are arranged alternately can ensure that under the condition that there are enough detection board cards on the soft sleeve, the receiving module P at the optimal distance can receive the initial waveform emitted by the emitting module L. Figure 1In the brain imaging device, the transmitting module L in circle a emits an initial waveform to the left. Among the receiving modules P located to the left of the transmitting module L in circle a, the receiving module P in circle b, which is closest to the transmitting module L in circle a, is too close to the transmitting module L, resulting in inaccurate reception of the detection waveform originating from the transmitting module L in circle a. The receiving module P in circle c, adjacent to the receiving module P in circle b, can achieve an optimal detection distance from the transmitting module L in circle a by limiting the first preset distance, thus obtaining the best quality image. Furthermore, the receiving module P in circle d, which is farther from the transmitting module L in circle a, is too far away and more susceptible to interference, resulting in lower image quality. Therefore, in the actual use of the brain imaging device, the receiving module P in circle d can selectively receive the detection waveform based on its quality. The alternating arrangement of the first region 1 and the second region 2 in the above embodiment ensures that the number of optimal detection waveforms received by the receiving module P is sufficient and evenly distributed. Further, referring to… Figure 3 If only a transmitting module L and a receiving module P are set at a first preset distance apart, the number of detection points is only half that of the embodiments of this utility model. That is, without considering the width and length of the detection board itself, the optimal distance between the transmitting module L and the receiving module P is two first preset distances. In one embodiment of this utility model, the optimal detection distance is 30mm and the first preset distance is 15mm, which satisfies the requirement of a 30mm interval between the transmitting module L and the receiving module P located at the optimal distance.
[0038] Reference Figures 1-2 According to some embodiments of the present invention, the first region 1 in each row of board slots is arranged opposite to the second region 2 in another row of board slots; the transmitting module in one row of board slots can transmit an initial waveform in the direction of the receiving module in another row of board slots.
[0039] Specifically, the transmitting module L in the two rows of board slots can transmit an initial waveform in any direction, including the vertical directions (up and down), for reception by the receiving module P in those two directions. Figure 2 Taking the board slot row containing the transmitter module L in circle e as an example, the transmitter module L in circle e belongs to the second region 2 in this board slot row. The receiver module P, which belongs to the same detection board as the transmitter module L in circle e, is too close. The corresponding board slot row in the other row belongs to the first region 1. Therefore, the distribution of the upper and lower ends of the transmitter module L and the receiver module P is opposite to that in the second region 2. At this time, the distance between the transmitter module L in circle e and the receiver module P in the other row can achieve the optimal distance.
[0040] Referring to Figure 4 According to some embodiments of the present application, the fNIRS brain imaging device further comprises a host computer module and a communication module; the communication module is electrically connected with the control module, and the communication module is used for transmitting the detection waveform obtained by the control module to the host computer module; the host computer module comprises a display unit, and the display unit is used for displaying the detection waveform.
[0041] Specifically, in the embodiment of the present application, the detection waveform obtained by the receiving module is not directly processed in the device, but is transmitted to the host computer module through the communication module, and the host computer module performs signal processing such as filtering on the detection waveform, and displays the detection waveform through the display unit.
[0042] According to some embodiments of the present application, the communication module comprises a serial communication unit and a WIFI communication unit; one end of the serial communication unit is electrically connected with the control module, and the other end of the serial communication unit is electrically connected with the host computer module; the WIFI communication unit is electrically connected with the control module, and the WIFI communication unit is in communication connection with the host computer module.
[0043] Specifically, the communication module can be integrated inside the control module, or can be in communication connection with the control module as a separate communication circuit. The communication module can communicate with the external system through serial communication or WIFI. In an embodiment of the present application, the host computer module transmits control instructions to the fNIRS brain imaging device through the serial communication unit, such as controlling the switch of the whole device; the detection waveform obtained by the receiving module is transmitted to the host computer through the WIFI communication unit to realize stable and fast transmission, so as to facilitate the operator to analyze the real-time data.
[0044] According to some embodiments of the present application, the fNIRS brain imaging device further comprises a power module, and the power module comprises a power interface unit and a battery unit; the first end of the power interface unit is electrically connected with an external power supply, and the other end of the power interface unit is in electrical connection with the control module, the emitting module and the battery unit; the battery unit is also in electrical connection with the control module and the emitting module.
[0045] Specifically, the fNIRS brain imaging device provided in the embodiment of the present application can be powered by an external power supply, or can be powered by a battery unit itself, and the external power supply can also supply power to the battery unit through the battery interface unit to meet the detection requirements in different environments.
[0046] According to some embodiments of the present application, the emitting module comprises a dual-wavelength LED lamp, the dual-wavelength LED lamp is electrically connected with the control module and can emit two different wavelengths of initial waveforms, and the wavelengths of the initial waveforms are 735nm and 850nm respectively; the receiving module comprises a photodiode, and the photodiode can receive detection waveforms transmitted in any direction.
[0047] Specifically, in the embodiment of the utility model, the LED emits light with two wavelengths of 735 nm and 850 nm, and the PD is a Si photodiode with a wavelength of 820 nm. The wavelength of the LED can be selected by the host computer serial port protocol control, the LED emits light, the light is reflected after being absorbed by the brain oxygenated hemoglobin (O2Hb) and deoxygenated hemoglobin (HHb), and the reflected light is received by the PD. The PD receives the absorbed LED light, judges the content of the brain oxygenated hemoglobin (O2Hb) and deoxygenated hemoglobin (HHb), and performs fNIRS brain imaging analysis.
[0048] In a second aspect, the utility model provides a brain imaging system, the brain imaging system includes the fNIRS brain imaging device of the above aspect embodiment.
[0049] The following is a specific embodiment of the utility model:
[0050] Referring to Figure 1 , Figure 1 The fNIRS brain imaging device is shown in the figure. The detection board card includes a dual-wavelength (735 nm, 850 nm) emitting LED and a PD formed by a Si photodiode. Each row of detection board cards is arranged according to the arrangement in Figure 2 , two detection board cards form a pair, and all detection board cards are divided into a first area 1 and a second area 2 according to each pair. The emitting module and the receiving module of the detection board cards in the first area 1 and the second area 2 are opposite in position. In the two rows of detection board cards, the arrangement order of the first area 1 and the second area 2 is also opposite, that is Figure 1 , the first area 1 in the upper row of detection board cards in corresponds to the second area 2 in the lower row of detection board cards, achieving the effect that the first area 1 and the second area 2 are staggered with each other, so as to improve the brain imaging quality. The detection board cards are arranged in the rubber sleeve through two rows of board card slot arrangements. The entire device can be powered from the outside through the power interface, or can be powered by the built-in battery. The detection board card has a dual-wavelength emission selection function, a PD receiving function, and a wireless Wifi data transmission function (transmitted to the host computer server for brain imaging analysis). The detection board card also contains a small wireless MCU responsible for the operation of the entire device. The operator can select the LED with a specific wavelength for light emission through the host computer serial port protocol control. The PD receives the light signal after being absorbed by the brain oxygenated hemoglobin (O2Hb) and deoxygenated hemoglobin (HHb), and then judges the content. Then, the detection board card transmits the test data to the host computer server through wireless Wifi, so as to perform fNIRS brain imaging analysis.
[0051] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.
Claims
1. An fNIRS brain imaging device, characterized by, The application relates to an fNIRS brain imaging device. The fNIRS brain imaging device comprises a soft sleeve capable of being sleeved on a user's head; two rows of board card slot rows are arranged on the inner side of the soft sleeve; each row of the board card slot rows comprises a plurality of rubber card slots; the two rows of the board card slot rows are spaced apart by a first preset distance; the number of the rubber card slots in the two rows of the board card slot rows is the same; adjacent rubber card slots in each row of the board card slot rows are spaced apart by the first preset distance; a control module; a plurality of detection board cards, one detection board card is arranged in one rubber card slot; each detection board card comprises a transmission module and a receiving module arranged oppositely; the transmission module is used for transmitting an initial waveform to a brain region of the user; the transmission module can transmit the initial waveform in any direction; the receiving module is used for receiving a detection waveform obtained after the initial waveform passes through the brain region; in each detection board card, the transmission module and the receiving module are spaced apart by the first preset distance.
2. The fNIRS brain imaging device of claim 1, wherein, Each row of the board card slot rows comprises a plurality of first regions and a plurality of second regions; each first region and each second region comprises two rubber card slots; the first regions and the second regions are alternately arranged in the board card slot rows; in the first regions, the receiving module of the detection board card is arranged at a first end of the rubber card slot, and the transmission module is arranged at a second end of the rubber card slot; in the second regions, the receiving module of the detection board card is arranged at the second end of the rubber card slot, and the transmission module is arranged at the first end of the rubber card slot.
3. The fNIRS brain imaging device of claim 2, wherein, The first regions in one row of the board card slot rows are arranged opposite to the second regions in another row of the board card slot rows; the transmission module in one row of the board card slot rows can transmit the initial waveform to the receiving module in another row of the board card slot rows.
4. The fNIRS brain imaging device of claim 1, wherein, The fNIRS brain imaging device further comprises a host computer module and a communication module; the communication module is electrically connected with the control module; the communication module is used for transmitting the detection waveform acquired by the control module to the host computer module; the host computer module comprises a display unit; the display unit is used for displaying the detection waveform.
5. The fNIRS brain imaging device of claim 4, wherein, The communication module comprises a serial communication unit and a WIFI communication unit; one end of the serial communication unit is electrically connected with the control module; the other end of the serial communication unit is electrically connected with the host computer module; the WIFI communication unit is electrically connected with the control module; the WIFI communication unit is in communication connection with the host computer module.
6. The fNIRS brain imaging device of claim 1, wherein, The fNIRS brain imaging device further comprises a power module; the power module comprises a power interface unit and a battery unit; a first end of the power interface unit is electrically connected with an external power supply; the other end of the power interface unit is electrically connected with the control module, the transmission module and the battery unit; the battery unit is also electrically connected with the control module and the transmission module.
7. The fNIRS brain imaging device of claim 1, wherein, The emitting module comprises a dual-wavelength LED lamp, which is electrically connected with the control module and can emit the initial waveforms of two different wavelengths, and the wavelengths of the initial waveforms are 735 nm and 850 nm respectively; the receiving module comprises a photodiode, which can receive the detection waveforms transmitted in any direction.
8. A brain imaging system characterized by, The brain imaging system comprises the fNIRS brain imaging device according to any one of claims 1-7.