Percutaneous biological optical detecting device and percutaneous jaundice detector

Abstract

The invention relates to a percutaneous biological optical detecting device which comprises an LED light source, a light-emitting lens, a light guide lens, a spectroscope, a first optical filter, a first photoelectric sensor, a second optical filter and a second photoelectric sensor. The emitting light of the LED light source is emitted to the skin to be detected through the light-emitting lens, reflected light of the skin to be detected is transmitted to the spectroscope through the light guide lens and is divided into two beams by the spectroscope, wherein one beam transmits through the first optical filter to be received by the first photoelectric sensor, and the other beam transmits through the second optical filter to be received by the second photoelectric sensor. Compared with a stroboscopic xenon lamp, the LED light source used by the percutaneous biological optical detecting device has high stability, does not need to be driven by a high voltage device, avoids influence of low frequency electromagnetic radiation, and can improve the detection precision. Meanwhile, because the complex driving device is not needed, the whole device is small in size, low in energy consumption and high in safety factor. Besides, the invention further relates to a percutaneous jaundice detector provided with the percutaneous biological optical detecting device.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a percutaneous bio-optical detection device and a percutaneous jaundice detection instrument containing the detection device. Background technique [0002] Traditional percutaneous optical detection instruments, such as percutaneous jaundice detection instruments, mainly use strobe xenon lamp as the light source. Figure 4 As a spectral curve analysis of a xenon light source, from Figure 4 It can be seen that the spectrum of the xenon lamp has a wide spectral range, covering the range of light waves from 100 to more than 1900nm. The wide spectral range of the xenon lamp light source makes it have good color rendering characteristics, but it also determines its high power consumption. Therefore, there will be many problems in the application of mobile instruments, and there will be many inconveniences in design and use. , For example, the interference of low-frequency electroma...

AI Technical Summary

Problems solved by technology

The wide spectral range of the xenon lamp light source makes it have good color rendering characteristics, but it also determines its high power consumption. Therefore, there will be many problems in the application of mobile instruments, and there will be many inconveniences in design and use. For example, in the design, the interference of low-frequency electromagnetic waves generated by high voltage and instantaneous current is difficult to filter out when designing the amplifier circuit, and the accuracy of the instrument cannot be guaranteed because the electromagnetic radiation intensity is too strong

In addition, since the strobe xenon lamp needs to be driven by high voltage, it is large in size, inconvenient to use and high in safety hazards during use and maintenance.

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