Shading cap for portable fNIRS brain imaging equipment

Abstract

The utility model provides a shading cap for portable fNIRS brain imaging equipment. The shading cap comprises a high-elasticity black cap and a lightproof black plastic film layer. A net-shaped elastic belt body is arranged in the high-elasticity black hat, infrared probe sensor sockets are arranged at the cross points of the net-shaped elastic belt body, and the lightproof black plastic film layer is fixed to the outer portion of the high-elasticity black hat through an adjustable fixing device. On the basis of adapting to different head types and fitting the scalp, the shading capability of the shading cap is further enhanced, the interference of external light to fNIRS data acquisition is effectively blocked, and the accuracy and reliability of data are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to biomedical imaging technical field, concretely is a kind of black elastic light shield cap for portable brain imaging equipment designed to functional near-infrared spectroscopy imaging (fNIRS) technology, to improve the light-proof performance of equipment in the use process significantly, ensure the accuracy and stability of fNIRS data acquisition by optimizing structure design. BACKGROUND

[0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute the prior art.

[0003] Functional near-infrared spectroscopy imaging technology is a non-invasive, real-time detection of cerebral cortical blood flow change technology, widely used in neuroscience, psychology and clinical medicine and other fields. However, fNIRS equipment is easily disturbed by external light when collecting data, affecting signal quality. In the prior art, although black elastic hat is used as a preliminary light shielding measure, there are still problems such as poor fit and light penetration. SUMMARY

[0004] To solve the above problems, the utility model provides a kind of light shield cap for portable fNIRS brain imaging equipment, the utility model includes:

[0005] High-elasticity black hat: a material layer with high elasticity, a net-shaped elastic band body attached to the scalp is provided inside, elastic fiber and memory foam composite material are used to ensure that the hat can closely fit the scalp of users with different head shapes and reduce light leakage caused by poor fit.

[0006] The intersection of the net-shaped elastic band body is provided with an infrared probe carrier sensor socket for fNIRS brain imaging detection, which can further improve the accuracy of head detection part and improve the measurement and imaging effect.

[0007] Lightproof black plastic film layer: a lightproof black plastic film layer larger than the area of the hat is added outside the elastic hat.

[0008] Adjustable fixing device: composed of a circle of belt elastic band and magic tape, the magic tape is sewn on the edge of the belt elastic band, and the adjustable fixing device is sewn and connected on the edge of the black plastic film layer, allowing users to adjust the length of the belt elastic band according to the size of the head, and further, the magic tape is used to fix the hat circumference.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] Significantly improve light-proof performance: through the double design of high elasticity cap and light-proof black plastic film layer, effectively block the interference of external light on fNIRS data acquisition, improve the accuracy and reliability of data.

[0011] Enhance the wearing comfort: use elastic fiber and memory foam composite material, improve the fit and wearing comfort of the cap, reduce the discomfort caused by long time wearing.

[0012] Strong adaptability: adjustable fixing device design makes the light-proof cap applicable to users with different head shapes, enhances the universality and practicality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings accompanying the specification of this utility model form a part of the disclosure, serve to further provide an understanding of the utility model, and the illustrative embodiments of the utility model and their descriptions serve to explain the utility model, and do not constitute an improper limitation on the utility model.

[0014] Figure 1 Sectional view of light-proof cap;

[0015] Figure 2 Overall effect diagram of light-proof cap; BRIEF DESCRIPTION OF DRAWINGS:

[0017] 1, black light-proof plastic film layer; 2, net-shaped elastic belt body; 3, infrared probe carrier sensor socket; 4, adjustable fixing device; 5, high elasticity black cap. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings and examples.

[0019] It should be pointed out that the following detailed description is all exemplary, and aims to provide further description of the utility model. Unless otherwise specified, all technical and scientific terms used in this paper have the same meaning as that generally understood by ordinary skilled persons in the technical field to which the utility model belongs.

[0020] The light-proof cap for portable fNIRS brain imaging equipment provided by the utility model aims to adapt to different user head shapes as much as possible, ensure that the light-proof cap can closely fit the scalp of different users, at the same time, effectively block light by using black light-proof plastic film layer 1, form a fully enclosed light-proof environment, further improve the light-proof effect, further, increase the coverage area of infrared probe sensor socket 3 on the whole scalp; the above settings can effectively improve the accuracy and reliability of the measured data.

[0021] As shown in the accompanying Figure 2As shown, a light-shielding cap for a portable fNIRS brain imaging device includes a mesh elastic band 2 inside an elastic black cap 5. The mesh elastic band 2 is made of a composite material of elastic fiber and memory foam, which can adhere to the user's scalp to a certain extent. Its good extensibility is suitable for different user head shapes, reducing light leakage caused by poor fit.

[0022] Specifically, multiple infrared probe carrier sensor sockets 3 are respectively set at the crisscrossing intersections of the mesh elastic band 2. Due to the tight distribution of the intersections in the mesh elastic band 2, the infrared probe carrier sockets 3 can be completely distributed on the user's scalp, further improving the accuracy of the head detection area and improving the measurement and imaging effect.

[0023] Furthermore, in this embodiment, the infrared probe carrier socket 3 is made of rubber, which has good flexibility and extensibility, and can fit the scalp well to a certain extent. When in use, it is only necessary to directly insert the near-infrared beam.

[0024] As attached Figure 1 As shown, a light-shielding cap for a portable fNIRS brain imaging device includes a black opaque plastic film layer 1, with an adjustable fixing device 4 sewn to the edge. The adjustable fixing device 4 consists of an elastic band and Velcro. The elastic band has good elasticity, and Velcro is provided at both ends of the elastic band. The Velcro is used to fix the elastic band after adjusting the size of the cap and to limit the elastic band, so that the size of the cap can be adjusted to a certain extent to adapt to different users' scalps, ensuring the comprehensiveness and stability of the light-shielding effect.

[0025] Specifically, in this embodiment, after the user puts on the high-elasticity black hat 5, the mesh elastic band 2 deforms. The good elasticity allows the high-elasticity black hat 5 to fit completely against the user's scalp. Then, the elastic band in the adjustable fixing device 4 is stretched so that the black opaque plastic film layer 1 can fit tightly against the edge of the high-elasticity black hat 5 and against the user's scalp. Then, Velcro is used to fix the adjusted elastic band and limit its position, thereby allowing the black plastic film layer 1 to cover the high-elasticity black hat 5, thus forming a fully enclosed light-blocking environment.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0027] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A light-shielding cap for a portable fNIRS brain imaging device, characterized in that... It includes: a highly elastic black hat and an opaque black plastic film layer disposed on the outside of the highly elastic black hat; the surface area of ​​the black plastic film layer is larger than that of the highly elastic black hat, and it is tightly attached to the edge of the highly elastic black hat by an adjustable fixing device; The highly elastic black cap has a mesh elastic band inside; an infrared probe carrier sensor socket is installed on the mesh elastic band.

2. The light-shielding cap for a portable fNIRS brain imaging device according to claim 1, characterized in that: The infrared probe carrier sensor socket is made of silicone and is arranged tightly on the mesh elastic band.

3. The light-shielding cap for a portable fNIRS brain imaging device according to claim 1, characterized in that: The adjustable fixing device is fixedly installed on the edge of the black plastic film layer, including a strip of elastic band and Velcro, with the Velcro tightly sewn to both ends of the elastic band.

4. A light-shielding cap for a portable fNIRS brain imaging device according to claim 1, characterized in that: The high-elasticity black cap has a mesh elastic band made of a composite material of elastic fiber and memory foam.

5. A light-shielding cap for a portable fNIRS brain imaging device according to claim 1, characterized in that: The adjustable fastening device consists of an elastic band and Velcro, which are sewn together at the edge of the black plastic film layer.

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