Candido Dionisio Pinto,Ravi Durvasula,James Power,Yong Ma,Ashwini Kumar Pandey,Jonathan Thomas
申请号：
US13928667
公开号：
US20140031665A1
申请日:
2013.06.27
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A system and method for determining endoscopic dimensional measurements including a projector assembly comprising a light source for projecting light through a telecentric lens and into a surgical site, and a mask coupled to the projector assembly. Light projected from the light source projects through the mask. The projected light through the mask may be a collimated pattern which does not significantly change in size as a function of the distance to a projected plane. The projected light patterns may include multiple wavelengths of light for measurements of different features of tissue and may be produced using a laser in conjunction with a light shaping optical diffuser, or using a light emitting diode in conjunction with a light shaping optical diffuser, or using a spatial filter. The projected light patterns may take the form of concentric rings with each ring representing a radius of a given dimension.
