Title :
A fiberoptic silicon pressure microsensor for measurements in coronary arteries
Author :
Tenerz, L. ; Smith, L. ; Hok, B.
Author_Institution :
Radi Med. Syst., Uppsala, Sweden
Abstract :
The authors have developed a pressure sensor in which the sensing element is only about 80 mu m wide and 1200 mu m in length, and which can therefore be mounted close to the tip of a guide wire having the desired bending flexibility and torsion stiffness. Signal transmission is provided by a thin optical fiber integrated into the guide wire structure. The sensor has been tested both in vitro and in vivo with satisfactory results. The sensor has also been used in humans in approximately one hundred cases, most of them in combination with balloon angioplasty.<>
Keywords :
biomedical equipment; biomedical measurement; biosensors; electric sensing devices; elemental semiconductors; fibre optic sensors; integrated optics; micromechanical devices; pressure transducers; silicon; Si pressure microsensor; balloon angioplasty; coronary arteries; elemental semiconductor; fiberoptic sensor; guide wire structure; in vitro; in vivo; micromachined; thin optical fiber; Humans; In vitro; In vivo; Microsensors; Optical fiber sensors; Optical fibers; Pressure measurement; Silicon; Testing; Wire;
Conference_Titel :
Solid-State Sensors and Actuators, 1991. Digest of Technical Papers, TRANSDUCERS '91., 1991 International Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-87942-585-7
DOI :
10.1109/SENSOR.1991.149068
