Title :
The design of a flexible magnetic stimulator
Author :
Choi, Angela S V ; Laszlo, Charles A. ; Hershler, Cecil
Author_Institution :
Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
The design of a magnetic stimulator capable of delivering a maximum of 10 kA with an adjustable risetime of 50-150 μs to a stimulating coil is presented. This stimulator is used to determine experimentally the strength-duration (S-D) curves of the median and ulnar nerves to compare the performance of magnetic and electrical stimulation. Parameters measured include latency, peak-to-peak amplitude, and dispersion of the maximally evoked potential. In addition, the average conduction velocity in the forearm, around the elbow, and in the proximal arm is measured
Keywords :
biomagnetism; biomedical equipment; 10 kA; 50 to 150 mus; elbow; electrical stimulation; flexible magnetic stimulator design; forearm; latency; maximally evoked potential dispersion; median nerve; peak-to-peak amplitude; proximal arm; strength-duration curves; ulnar nerve; Capacitors; Coils; EMP radiation effects; Electrical stimulation; Electromagnetic fields; Magnetic stimulation; Muscles; Pulse generation; RLC circuits; Voltage;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95700
