Vahid SAADAT,Edmund TAM,Chris A. ROTHE,David MILLER,Ruey-Feng PEH
申请号：
US13742718
公开号：
US20130131448A1
申请日:
2013.01.16
申请国别(地区):
US
年份:
2013
代理人:
摘要：
Flow reduction hood systems are described which facilitate the visualization of tissue regions through a clear fluid. Such a system may include an imaging hood having one or more layers covering the distal opening and defines one or more apertures which control the infusion and controlled retention of the clearing fluid into the hood. In this manner, the amount of clearing fluid may be limited and the clarity of the imaging of the underlying tissue through the fluid within the hood may be maintained for relatively longer periods of time by inhibiting, delaying, or preventing the infusion of surrounding blood into the viewing field. The aperture size may be controlled to decrease or increase through selective inflation of the membrane or other mechanisms.
