公开(公告)号：US20220015638A1

公开(公告)日：2022-01-20

申请号：US17309374

申请日：2019-11-22

Applicant: PROVINCIAL HEALTH SERVICES AUTHORITY

Inventor： Haishan ZENG ,  Zhenguo WU ,  Harvey LUI ,  Yunxian TIAN

IPC: A61B5/00 ,  G02B21/00 ,  G02B21/36 ,  G02B27/64

Abstract: Methods and apparatus for obtaining 3D imaging of tissue involve scanning a focused laser beam in xz planes to obtain a set of xz plane images spaced apart in a y direction. The xz plane images are processed to correct distortions and motions and combined to provide 3D image data. Surface flatting is optionally performed. Imaging may be performed using a femtosecond (fs) laser beam. Different components of light returning from the tissue may be detected and processed to yield plural co-registered images using different imaging modalities, for example, reflective confocal microscopy (RCM), two photon fluorescence (TPF) and second harmonic generation (SHG).

公开(公告)号：US20210255041A1

公开(公告)日：2021-08-19

申请号：US17271826

申请日：2019-09-04

Applicant: PROVINCIAL HEALTH SERVICES AUTHORITY

Inventor： Zhenguo WU ,  Haishan ZENG ,  Jianhua ZHAO ,  Liwei JIANG

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/10 ,  G01J3/06

Abstract: Systems for confocal Raman spectroscopy of points of interest or regions of interest with concurrent imaging are disclosed. The imaging may be used for real time selection of points of interest or regions of interest for Raman spectroscopy and to monitor for unwanted motions of a sample while Raman spectra are acquired. Disclosed embodiments apply Reflectance confocal microscopy (RCM) in a confocal Raman spectroscopy system. A single laser may be used as a light source for both RCM and micro-Raman spectroscopy. A Faraday optical isolator may be applied to extract RCM signals for imaging. Systems as described herein have example application for ex vivo sample and in vivo skin measurement.