Dermatoscope capable of adjusting working distance and being used for assisting confocal microscope

Abstract

The invention relates to a dermatoscope capable of adjusting a working distance and being used for assisting a confocal microscope. The dermatoscope comprises a shell, a skin fitting mechanism, an LED light source, an imaging system and an adjusting mechanism, wherein the skin fitting mechanism, the LED light source, the imaging system and the adjusting mechanism are installed in the shell in sequence; the skin fitting mechanism comprises a fitting sheet, a tissue ring and a fitting cover; the fitting sheet is provided with a first outwards-protruding handle and is attached to the tissue ring through back glue; the tissue ring is a magnetic stainless iron circular ring with second outwards-protruding handles on two sides; a magnet is embedded in one end of the fitting cover; the tissue ring is attracted to the end of the fitting cover through magnetic force; the other end of the fitting cover is installed at the front end of the shell; an LED light source is arranged by being close to the fitting cover; the imaging system comprises a lens arranged behind the LED light source, an adapter and a camera, wherein the camera is installed on a camera fixing base of the adjusting mechanism; and a working distance between the lens and the fitting sheet is adjusted through the adjusting mechanism. The dermatoscope has a simple structure and is convenient in use, the skin fitting cover and the shell are designed to be rotatable, and imaging accuracy is guaranteed.

Description

technical field [0001] The invention belongs to the field of optical imaging equipment, and in particular relates to a dermatoscope with an adjustable working distance and which can be used to assist a confocal microscope. Background technique [0002] The dermatoscope is a stereoscopic skin microscope, and its magnification can be magnified ten times or even a hundred times according to the needs of use. Dermoscopy is a non-invasive instrument that can observe the submicroscopic structure of the skin epidermis in vivo. Through the light and optical magnification system, it can observe the skin epidermis structure, pigment distribution and vascular structure, and can observe the abnormality of the subcutaneous structure. However, the existing dermoscopic products have the following problems due to unreasonable structural design: [0003] (1) The skin detected by dermoscopy usually has lesion reactions, and some skin diseases are contagious, so for different tested parts and...

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Problems solved by technology

[0003] (1) The skin detected by dermoscopy usually has lesion reactions, and some skin diseases are contagious, so for different tested parts and different tested individuals, it is necessary to ensure that cross-infection does not occur, so contact The cleaning and disinfection of the spot is very important, but many existing one-piece skin lenses cannot be thoroughly disinfected and cleaned

[0004] (2) The bonding mechanism on the existing dermatoscope is integrated with the shell. During the detection, the unintentional action of the user will drive the dermatoscope to twist, resulting in deformation of the skin, which will affect the image

[0005] (3) The lens of the existing dermoscopic imaging system basically adopts the finished lens and camera on the market, and the interior cannot be adjusted, and its imaging range and magnification are fixed

However, in actual use, due to the difference in the use environment, the operator's pressure on the skin is different, the angle is different, and the skin elasticity of different people is different, which will lead to unstable or even inaccurate imaging, which increases the difficulty of operation and hinders the observation work.

[0006] (4) For different usage scenarios, currently most dermatoscopes cannot set the magnification according to the demand

However, when the existing dermatoscope and confocal microscope switch detection, it is difficult for the confocal microscope to accurately find the position to be detected

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