Mark A. MOEHRING,Jay A. CHESAVAGE,Rahul SINGH,George GATES
申请号：
US15173615
公开号：
US20180310917A1
申请日:
2016.06.04
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An ultrasound signal processor uses an excitation generator to cause displacement of a membrane or surface while a series of ultrasound pulses are applied to the membrane or surface. Phase differences between a transmitted signal and received signal are examined to determine the movement of the membrane or surface in response to the applied excitation. An examination of the phase response of the membrane or surface provides a determination as to whether the fluid type behind the membrane or surface is one of: no fluid, serum fluid, or purulent fluid.
