Title :
An optical microsystem for wireless neural recording
Author :
Wei, P. ; Ziaie, B.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
In this paper, we describe an optical microsystem for wireless neural recording. The system incorporated recording electrodes, integrated electronics, surface-mount LEDs, and a CCD camera. The components were mounted on a PCB platform having a total dimension of 2.2 times 2.2 cm2, 4 integrated biopotential amplifiers (IBA) and 16 LEDs. The IBAs having a bandwidth of 0.1-93.5 Hz with the midband gain of 38 dB were fabricated using AMI 1.6 mum technology. The simulated local field potentials (LFP) were amplified and used to drive the LEDs. A CCD camera with a temporal resolution of 30FPS was used to capture the image and retrieve the signal.
Keywords :
CCD image sensors; bioMEMS; bioelectric potentials; biomedical electrodes; biomedical electronics; biomedical optical imaging; light emitting diodes; medical signal processing; micro-optics; neurophysiology; AMI technology; CCD camera; PCB platform; bandwidth 0.1 Hz to 93.5 Hz; biomedical electrodes; gain 38 dB; integrated biopotential amplifiers; integrated electronics; local field potentials; optical microsystem; surface-mount LED; wireless neural recording; Action Potentials; Brain; Electrodes, Implanted; Electroencephalography; Equipment Design; Equipment Failure Analysis; Lighting; Miniaturization; Optical Devices; Photometry; Signal Processing, Computer-Assisted; Telemetry;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5333183
