Fabrication and characterization of microscale sensors for bone surface strain measurement

Author

Yang, Gloria Y. ; Bailey, Vasudev J. ; Wen, Yu-Hsin ; Lin, Gisela ; Tang, William C. ; Keyak, Joyce H.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA

fYear

2004

fDate

24-27 Oct. 2004

Firstpage

1355

Abstract

We present micro-fabrication and device characterization results towards the realization of a flexible, implantable sensor array for measuring surface strain on live bone. Thin-film metal strain gauges were embedded in a polydimethyl-siloxane (PDMS) membrane. Various adhesives used to adhere the device to both imitation bone materials and cow bones were tested. The measured strain level and resolution indicates that the device is suitable for bone surface strain measurement. Ultimately, this gauge will be part of an implantable, wireless array for real-time monitoring of bone disease and bone remodeling.

Keywords

adhesives; bone; membranes; microsensors; piezoresistive devices; polymer films; prosthetics; strain gauges; strain sensors; PDMS membrane; adhesives; bone disease real-time monitoring; bone remodeling; cow bones; flexible implantable sensor array; imitation bone materials; implantable wireless sensor array; live bone surface strain measurement; microfabrication; microscale sensors; piezoresistive strain sensors; polydimethyl-siloxane; thin-film metal strain gauges; Biomembranes; Bones; Capacitive sensors; Fabrication; Materials testing; Monitoring; Sensor arrays; Sensor phenomena and characterization; Strain measurement; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2004. Proceedings of IEEE

Print_ISBN

0-7803-8692-2

Type

conf

DOI

10.1109/ICSENS.2004.1426435

Filename

1426435