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Aspiration Device and Method for Determining Viscoelastic Properties of Biological Tissues and Synthetic Materials
专利权人:
ETH Zurich
发明人:
Edoardo Mazza,Francisco Feijo Delgado,Clemens Clausen
申请号:
US16347312
公开号:
US20190254587A1
申请日:
2017.10.25
申请国别(地区):
US
年份:
2019
代理人:
摘要:
A device for measuring the elastic deformability of soft tissue has a probe head having the form of a cup with a cavity, side walls and a bottom wall, a first probe channel, a pressure unit and a control unit, the first probe channel being configured to connect the pressure unit, that provides a vacuum inside first probe channel and that is controlled by the control unit with the probe head. The first probe channel has a distal end leading through the bottom wall into the cavity. The device further has a second probe channel having a distal end leading through the bottom wall into the cavity and being connected with a pressure sensor provided to determine the pressure in the cavity and to communicate it to the control unit to determine a point in time, when deformed tissue closes the distal end of the first probe channel based on a pressure difference in the two probe channels.
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