Shoude Chang,Erroll Murdock,Costel Flueraru,Youxin Mao
申请号：
US12662447
公开号：
US08218927B2
申请日:
2010.04.19
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A scanning optical head for a catheter is locally controlled by a motor at an insertion end of the catheter uses a hollow motor through which a longitudinal optical path of the catheter passes. This permits the motor to be positioned between a control base of the catheter and avoids rotating the whole fiber, and therefore makes the beam scanning stable and accurate. In addition, because there is no coupling component, it also eliminates the light reflection between additional surfaces as well as varying fiber birefringence, which becomes a cause of noise when imaging the deep structure.
