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Miniature OCT probe

A technology of optical coherence tomography and imaging probe, which is applied in the field of medical equipment and can solve problems such as the inability to eliminate astigmatism

Inactive Publication Date: 2015-06-10
SHENZHEN VIVOLIGHT MEDICAL DEVICE & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the technical problem that the astigmatism problem cannot be eliminated in the prior art, the present invention provides an optical coherence tomography probe that eliminates optical distortion

Method used

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] see Figure 3-1 , 3-2 , the miniature optical coherence tomography probe provided by a specific embodiment of the present invention, the optical probe includes a single-mode optical fiber 13 with a diameter of 125um and a one-dimensional gradient index lens composed of two cross-connected one-dimensional lens gradient index lenses Group 23 converges or collimates the outgoing light of the optical fiber in X\Y respectively to compensate for the divergence of the light speed by the transparent sleeve. The one-dimensional gradient refractive index lens group 23 can also be made up of two or more crossed pairs of one-dimensional lens gradient refractive index lenses, such as two, four, six, etc. even numbers of one-dimensional lens gradient refractive index lenses that cross Composed in pairs, that is, two pairs of crossed one-dimensional lenses with...

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Abstract

The invention relates to an OCT (optical coherence tomography) probe which includes single-mode optical fibers, a one-dimensional gradient index lens group and a reflecting prism, wherein the one-dimensional gradient-index lens is arranged at one end of the single-mode optical fiber; the reflecting prism is arranged at the other end of the gradient index lens. According to the OCT probe, an elliptical spot can be output through the one-dimensional gradient index lens, the entire spot forms a circular spot on a detected surface through the reflecting prism and the compensation of inner-outer diameter cylinder curvature of a transparent protective sleeve, so as to effectively eliminate the astigmatism brought by the transparent protective sleeve.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a miniature optical coherence tomography probe used in the detection of cardiovascular OCT or narrow space of human tissue. Background technique [0002] With the development of science, various imaging instruments have appeared in medicine and biology, such as: ultrasound imaging, X-ray imaging, CT, MRT and PET, etc., but these instruments have their own advantages. and shortcomings. Ultrasound imaging relies on the acoustic impedance of biological tissues, and the contrast is poor, making it difficult to detect early cancers; X-ray imaging relies on the density of biological tissues, the greater the density, the whiter the image, but the images of different organs and tissues with similar densities are less Due to the low contrast, it cannot be distinguished, and the X-ray fluoroscopy exposes the tissue to strong ion radiation, and the incident high energy will ionize ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/05
CPCA61B5/0066A61B1/05A61B1/07
Inventor 米磊刘钊
Owner SHENZHEN VIVOLIGHT MEDICAL DEVICE & TECH CO LTD