Magnetic sensor for arterial distension and blood pressure monitoring

作者：Ruhhammer Johannes^*; Herbstritt Tamara; Ruh Dominic; Foerster Katharina; Heilmann Claudia; Beyersdorf Friedhelm; Goldschmidtboeing Frank; Seifert Andreas; Woias Peter

来源：Biomedical Microdevices, 2014, 16(6): 815-827.

DOI：10.1007/s10544-014-9885-x

• In vivo monitoring
• Cardiovascular parameters
• Blood pressure
• Arterial distension
• Magnetic sensor
• Implant

A novel sensor for measuring arterial distension, pulse and pressure waveform is developed and evaluated. The system consists of a magnetic sensor which is applied and fixed to arterial vessels without any blood vessel constriction, hence avoiding stenosis. The measurement principle could be validated by in vitro experiments on silicone tubes, and by in vivo experiments in an animal model, thereby indicating the non-linear viscoelastic characteristics of real blood vessels. The sensor is capable to provide absolute measurements of the dynamically varying arterial diameter. By calibrating the sensor, a long-term monitoring system for continuously measuring blood pressure and other cardiovascular parameters could be developed based on the method described. This will improve diagnostics for high risk patients and enable a better, specific treatment.

• 出版日期2014-12