A microstructure based fiberoptic pressure sensor for measurements in lumbar intervertebral discs.

被引：7

作者：

Höjer, S ^{[1
]}

Krantz, M ^{[1
]}

Ekström, L ^{[1
]}

Kaigle, A ^{[1
]}

Holm, S ^{[1
]}

机构：

[1] Samba Sensors AB, S-41328 Gothenburg, Sweden

来源：

BIOMEDICAL SENSORS, FIBERS, AND OPTICAL DELIVERY SYSTEMS, PROCEEDINGS | 1999年 / 3570卷

关键词：

micromechanics; fiberoptic; pressure; intervertebral disc;

D O I：

10.1117/12.336921

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A fiberoptic system with a microstructure sensor element was used for measuring lumbar intervertebral disc pressure in a porcine model. The fiberoptic pressure sensor was inserted in the disc using a guiding needle. A reference sensor was also introduced into the same area of an adjacent disc. The fiberoptic sensor detected pressures from 0.7-8 bar in the disc. Dynamic measurements were carried out at frequencies between 2 and 10 Hz. No phase lag was observed between the applied force and the measured pressures. Sensitivity, dynamic response and available pressure range are all important design characteristics for which this fiberoptic sensor has a competitive edge.

引用

页码：115 / 122

页数：8

共 12 条

[1] THE EFFECT OF POSTURE ON THE ROLE OF THE APOPHYSEAL JOINTS IN RESISTING INTERVERTEBRAL COMPRESSIVE FORCES [J].