Title :
Fiber-optic transducer for blood pressure measurements
Author :
Hong, LiLi ; Prohaska, Otto J. ; Nara, Andrew R.
Author_Institution :
Dept. of Biomed. Eng., Case Western Reserve Univ., Cleveland, OH, USA
Abstract :
A novel type of fiber-optic pressure transducer has been developed and tested for biomedical application. It consists of two parts: a pressure-sensing membrane and a fiber-optic displacement transducer which is based on the light intensity loss caused by angular misalignment between two fibers. The light intensity change is registered by a photodiode. The pressure transducer is registered by a photodiode. The pressure transducer has been evaluated for static and dynamic pressure measurements. Not only does it have adequate linearity and frequency response, safety, and small size, but also it may be an attractive device for developing multiple-site pressure-detecting catheters.<>
Keywords :
biomedical measurement; fibre optic sensors; haemodynamics; pressure transducers; angular misalignment; biomedical transducer; blood pressure measurements; dynamic pressure measurement; fiber-optic displacement transducer; light intensity loss; multiple-site pressure-detecting catheters; photodiode; pressure-sensing membrane; static pressure measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95064
