Near infrared spectrum imaging system and application thereof

A near-infrared spectroscopy and imaging system technology is applied in the field of functional near-infrared brain functional imaging, which can solve the problems of increased difficulty in brain function data processing, lack of standardization in data analysis, and increased imaging preparation time, so as to reduce the generation of artifact signals. , good equipment and sports compatibility, low cost effect

Pending Publication Date: 2021-12-31
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current fNIRS equipment still has problems such as insufficient accuracy, insufficient stability, false positives or false negatives, lack of standardization in data analysis, and difficulties in plugging and unplugging probes during use, which increases the preparation time for imaging
In addition, when these wearable devices are used in the whole brain, they are often affected by the hair. During the exercise, the movement of the hair will produce noise artifacts, which increases the difficulty of processing brain function data.

Method used

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  • Near infrared spectrum imaging system and application thereof
  • Near infrared spectrum imaging system and application thereof
  • Near infrared spectrum imaging system and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This example is applied to the control of the mechanical leg.

[0062] Probe site design based on the frontal cortex such as Figure 5 shown. Ⅰ is the LED insertion site, and Ⅱ is the PD insertion site. The position of the LED and PD probe is different from the previous design, and the number of LEDs is less, which reduces the impact of infrared light on the brain.

[0063] The control method of the robotic leg based on near-infrared spectral imaging first needs to perform brain functional imaging on the control area of ​​​​the movement (areas 4 and 6 of the precentral gyrus of the cerebral cortex). The probe cap adopts the whole brain type, according to Figure 5 The holes on the probe cap place the LED and PD mounts and probes. After wearing the near-infrared spectral imaging system, the subjects first collect the brain function signals of wanting to move the left and right legs. The experimental plan can be 20s imagination, 20s rest and three groups in turn. The...

Embodiment 2

[0065] This example is applied to the evaluation and detection of children's attention.

[0066] The near-infrared spectrum brain function imaging device used in this example is basically the same as that in Example 1, except that this example only detects the blood oxygen concentration in the frontal lobe, and the probe cap only needs to cover the frontal lobe, which can reduce the wearing time and reduce the wear time. Reduce foreign body sensation, so only a square probe cap with the size of the child's frontal lobe is needed, and the position of the probe cap is determined according to Image 6 Drill a hole for the buckle, and change the distance between the dual-wavelength LED and the PD probe to 2cm.

[0067] Place the assembled probe cap on the frontal lobe of the child being tested, and it can be adjusted and fixed according to the size of the head circumference of the child being tested. The spring inside the probe can be adaptively adjusted according to the curvatur...

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Abstract

The invention discloses a near infrared spectrum imaging system and application thereof. A probe of the near-infrared spectrum imaging system adopts a spring design and can be freely adjusted according to head curvatures of different testees during use, so that comfort and tightness are ensured; a soft rubber sheet is additionally arranged on a mounting seat, so that the hair can be automatically pushed aside and fixed during use, the probe is directly contacted with the skin, and interference of the hair is reduced; meanwhile, a probe cap is made of a composite material, so that comfort, supporting performance and shielding effect on ambient light are ensured; a lossless brain-computer interface technology according to the invention can read neuron activation signals at different positions of the brain of a human body in a non-invasive mode, has advantages of being real-time, low in cost, good in equipment and motion compatibility and the like, and is suitable for almost all tested groups. In practical application, the near infrared spectrum imaging system is very effective for brain signal interpretation and has very high application value.

Description

technical field [0001] The invention belongs to the field of functional near-infrared brain function imaging, and specifically relates to a near-infrared spectrum imaging system and its application. Background technique [0002] The human brain is the most complex and precise organ in the world, carrying all our intelligent activities (control, memory, learning, communication and decision-making, etc.). Monitoring changes in brain activity and understanding the working principles of the brain can help us better understand the relationship between changes in various functional areas of the brain and corresponding intelligent activities. Among them, the brain function imaging technology can intuitively present the brain function state when people participate in various activities, so as to help people better understand themselves and unlock the mysteries of wisdom. Therefore, functional brain imaging technology is one of the important means to study the brain. [0003] Funct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455A61B5/16A61B5/00
CPCA61B5/14553A61B5/14552A61B5/7225A61B5/7264A61B5/7267A61B5/168A61B2503/06
Inventor 斯科龚薇徐晓滨朱玥
Owner ZHEJIANG UNIV
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