WARNKING, REINHARD J.,SCHULZE-CLEWING, JOERG,DIPAOLA, DAVID,SHIN, DONG IK,POLLMAN, MATTHEW J.
申请号：
CA2934882
公开号：
CA2934882A1
申请日:
2014.09.11
申请国别(地区):
CA
年份:
2015
代理人:
摘要：
A system having a catheter having a distal pressure sensitive capacitive element providing an impedance and phase shift which varies responsive to the amount of pressure from blood external the catheter, a detector having electronics for determining the impedance and/or phase shift. This impedance and or phase shift corresponds to the pressure of the blood about the distal end of the catheter. When the catheter is inserted into a patient's body, the impedance or phase shift is detected quasi wirelessly without special signal communication means like optical fibers or electrical wires from outside the patient's body utilizing the patient as a ground path and the catheter shaft as an electrical conductor.
