Novel pressure sensing skin capillary scanning device, system and work method

Abstract

Provided is a novel pressure sensing skin capillary scanning device. The device includes a probe housing, a handle, a galvanometer bracket, a galvanometer, a collimator, a lens rack, a lens, a supportand a light-permeable sheet; the lower surface of the light-permeable sheet, namely the surface in contact with skin, is provided with a thin-film pressure sensor. A system with the novel pressure sensing skin capillary scanning device includes a novel pressure sensing skin capillary scanning device body, wherein the novel pressure sensing skin capillary scanning device body comprises a sample arm, a reference arm, a 10 / 90 coupler, a circulator, an SLD light source, a red light source, a spectrograph and a computer. By utilizing the thin-film pressure sensor attached to the probe light-permeable sheet, the pressure performed by a probe on the skin surface can be directly measured and displayed by the computer; when the pressure exceeds a certain reasonable range, the computer can emit a warning sound; through pressure adjustment, the reasonableness and consistency of the depth of scanning carried out by an OCT system on skin capillaries are ensured.

Description

technical field [0001] The invention relates to the field of OCT, in particular to a novel pressure-sensing skin microvessel scanning device, system and working method. Background technique [0002] Optical coherence tomography (OCT) technology is an imaging technology with micron resolution, which can obtain the internal tomographic structure information of biological samples by measuring the amplitude and echo delay of scattered light. OCT uses the weak coherence of broadband light to suppress background noise, and can obtain 1-2 orders of magnitude higher resolution (μm level) than traditional ultrasound imaging, as well as a high signal-to-noise ratio (over 100dB). OCT uses near-infrared light as the light source, which will not cause harm to the human body. Moreover, in addition to imaging transparent tissue, it can also effectively image non-transparent tissue. OCT is also widely used in many fields such as ophthalmology, dermatology, heart, intestinal tract, and dig...

AI Technical Summary

Problems solved by technology

However, the device can only adjust the distance between the scanning lens and the measured area of ​​the skin after the data is collected, resulting in a long operation time; the cavity used by the device blocks the line of sight, and the skin area to be measured cannot be located by observing the indicator light; the device uses The temperature control device and electric displacement device greatly increase the cost of the probe; and the relatively large temperature control device and electric displacement device used in this device increase the size of the probe

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