Near infrared spectroscopy and electrode combined detection device

Abstract

The invention relates to a near infrared spectroscopy and electrode combined detection device. The near infrared spectroscopy and electrode combined detection device is divided into an elastic inner layer and an inelastic outer layer; the elastic inner layer adapts to different shapes of detected physiological positions; electrodes which are arranged according to the standard positioning are loaded on the elastic inner layer; the inelastic outer layer is provided with near infrared probes, wherein the distances between the near infrared probes are fixed; every near infrared probe is formed by a probe positioner, an optical fiber clamp and a non-metallic elastic pressure cap; the probe positioners are fixed on the inelastic outer layer and used for positioning the probes; the middles of the probe positioners are provided with through holes; the diameter of the through holes is slightly larger than that of the optical fiber clamps and accordingly the optical fiber clamps can slide in the through holes freely; the optical fiber clamps are cylindrical parts; the middles of the optical fiber clamps are provided with through holes which are used for clamping optical fibers; the elastic pressure caps are used for applying the elastic force on the optical fibers. According to the near infrared spectroscopy and electrode combined detection device, the standard positioning requirements of the electrodes and the fixed distance between a near infrared light source and a detector can be met simultaneously, the structure is simple and practical, and the compatibility is achieved under the nuclear magnetism.

Description

technical field [0001] The invention relates to the field of non-destructive detection equipment for biological tissue functional activities, in particular to a near-infrared spectroscopy and electrode combined detection device. Background technique [0002] Biological tissue spectrum measurement can monitor the changes of tissue optical parameters accompanying physiological activities, and bioelectrical signal measurement can monitor the biological discharge process accompanying physiological activities. Simultaneously measuring the spectrum and electrical signals of biological tissues can obtain more comprehensive physiological information and better understand the functional mechanism of biological tissues. [0003] Taking brain function monitoring as an example, EEG technology based on neural electrical activity is traditionally used. Near-infrared spectroscopy, which measures hemodynamic response, has also attracted increased attention in recent years. [0004] EEG de...

AI Technical Summary

Problems solved by technology

This design cannot meet the requirements of using standard positioning of brain electrodes and ensuring a fixed near-infrared source-detector distance at the same time

To use standard electrode positioning, the device must be able to adapt to different head shapes, and the device needs to be elastic and can be stretched, but this will cause the distance between the near-infrared probes to change, and the distance between the light source and the detector affects the near-infrared spectroscopy. The important factors of the detection depth are generally preset fixed values, such as 3cm

Moreover, the elastic device has poor support for optical fibers with a certain weight, which increases the difficulty of wearing the device and has poor practicability

To ensure a fixed distance between the near-infrared light source and the detector, the material of the device must be non-elastic and non-stretchable, but in this case it cannot adapt to different head shapes and cannot guarantee the standard positioning of EEG electrodes.

In addition, the near-infrared probe parts using metal springs in this patent are complex and incompatible for research combined with MRI technology

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