DIGITAL OPTICAL DEVICE USED FOR PATTERNING CORNEAL CROSS-LINKING

WIPO Patent Application WO/2019/227637

A1

A digital optical device used for patterning corneal cross-linking, comprising an ultraviolet light source system and a collimation system (1), a light beam modulation system (3), a projection illumination system (4) and a control system; the light beam modulation system (3) comprises a digital light projection chip that is provided with a micro-reflector array, the digital light projection chip subdividing a collimated ultraviolet light beam into a plurality of controllable small light beams; the control system controls the deflection or otherwise of each micro-reflector of the digital light projection chip according to a predetermined manner, and controls the ratio of deflection time to non-deflection time per unit time of each micro-reflector so as to control the illumination energy per unit time of each small light beam, thus generating illumination having different predetermined intensity distributions corresponding to different predetermined regions, thereby achieving refined and dynamic control of the range and energy distribution of a corneal cross-linking region. The device may flexibly meet the needs for personalized treatment of the cornea and significantly improve the therapeutic effect and efficiency of corneal cross-linking surgery.

MI SHENGLI (CN)
ZHOU YIMING (CN)
HU YINGBING (CN)
YANG SHUAITAO (CN)
LIU CHANGYONG (CN)
DU ZHICHANG (CN)

PCT/CN2018/096583

December 05, 2019

July 23, 2018

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GRADUATE SCHOOL SHENZHEN TSINGHUA UNIV (CN)

A61N5/06

CN107205845A	2017-09-26
CN106236372A	2016-12-21
CN105498097A	2016-04-20
CN107189089A	2017-09-22
CN106264855A	2017-01-04
US20160338588A1	2016-11-24

CHINA TRUER IP (CN)

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