External double-light-source colposcope imaging system

Abstract

The invention discloses an external double-light-source colposcope imaging system which comprises an imaging system and a light source system. The imaging system comprises an external colposcope bodyfor acquiring an image and an image acquisition unit for splitting light; the light source system comprises a near-infrared light source and an LED white light source, wherein the centers of light beams emitted by the near-infrared light source and the LED white light source are overlapped with the imaging center of the colposcope body after shaping, so that the colposcope body can simultaneouslyacquire visible light images, near-infrared fluorescent images and fusion images. The external double-light-source colposcope imaging system has the advantages that the amplification factor is high, the resolution is high, visible light-near-infrared fluorescence dual-mode imaging to cervical tissues and vaginal tissues is achieved, and pathological change tissues at each stage can preliminarily marked and identified; the shaped light beams can simultaneously display a high-resolution near-infrared fluorescence image and a white light image to realize real-time video output; the external structure is adopted, the operation is convenient, the use is sanitary, and the practical application is facilitated.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to an external colposcope imaging system. Background technique [0002] Cervical cancer is one of the common gynecological reproductive tract malignancies. Among female malignant tumors, its incidence rate ranks second. Worldwide, there are approximately 500,000 new cases each year, 80% of which occur in developing countries. Cervical tissue is located deep in the human body and requires special imaging equipment to observe it. A colposcope is a device for observing the cervix and is an indispensable instrument for diagnosing cervical cancer. [0003] There are two types of existing colposcopes: built-in and external. Built-in colposcopes, such as "a built-in colposcope with multiple imaging modes" disclosed in patent 201710348007.6, have problems such as inconvenient disinfection and discomfort for patients. The technology in this patent can realize a variety of imaging...

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Problems solved by technology

[0005] Existing external colposcopes, such as the invention patent of Chinese Patent Application No. 201620528626.4 "A Laser-Induced Fluorescence Spectrum Colposcope", use different bands of lasers to scan point by point to induce fluorescence. This imaging method is slow and the device is relatively complicated; The invention patent of Chinese patent application number 201510979397.8 "a multi-mode electronic colposcopy system" does not have the near-fluorescence imaging function

[0006] In addition, although the technical solutions disclosed in Chinese patent application numbers 201611058128.9, 201510008183.6, 201210196099.8, 201810376241.4, and 201510008184.0 can perform visible light and near-infrared fluorescence imaging on biological tissues, they are not suitable for observing cervical tissue

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