Function Electrical Stimulation Signals Generator Circuits for the Central Nerve and the Sciatic Nerve

Author

Li Wenyuan ; Zhang Zhenyu ; Wang Zhi-Gong

Author_Institution

Inst. of RF- & OE-ICs, Southeast Univ., Nanjing

fYear

2006

Firstpage

5287

Lastpage

5290

Abstract

Circuits for the signal generation of the FES (functional electrical stimulation) of the central nerve and the sciatic nerve have been designed. The circuits were implemented by using discrete devices. The FES circuits consist of two or three operational amplifiers. The bandwidths of the circuits are more than 10 kHz and their gains are variable from 20 dB to 60 dB. To a load of several kilo-ohms, according to the microelectrode with the nerve, the circuit for stimulating central nerve can provide a current signal, and the signal value is more than 1 mA. The circuit for stimulating sciatic nerve can provide a stimulating voltage signal of more than 10 Vs. The loads of the circuits are microelectrodes contacted with nerves. The circuits can be used with two kinds of microelectrodes: cuff microelectrodes which for stimulating sciatic nerve and shaft microelectrodes which for stimulating central nerve

Keywords

bioelectric phenomena; microelectrodes; neurophysiology; signal generators; 20 to 60 dB; central nerve; cuff microelectrodes; function electrical stimulation; sciatic nerve; shaft microelectrodes; signals generator circuits; Bandwidth; Circuits; Electrical stimulation; Gain; Microelectrodes; Neuromuscular stimulation; Operational amplifiers; Signal design; Signal generators; Voltage; Central nerve; Integrated circuit; Sciatic nerve; microelectrode; stimulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the

Conference_Location

Shanghai

Print_ISBN

0-7803-8741-4

Type

conf

DOI

10.1109/IEMBS.2005.1615673

Filename

1615673