Single-nerve-action-potential-measuring apparatus

Details Single-nerve-action-potential-measuring apparatus Single-nerve-action-potential-measuring apparatus

1996-07-10

1997-12-02

Kamm, William E.

Surgery

Truss

Pad

128733, A61B 504

Patent

active

056925166

ABSTRACT:
A single-nerve-action-potential-measuring apparatus comprises a multi-channel electrode, a space-damping-vector-calculating section, and a single nerve action potential separating and extraction section. The multi-channel electrode, which consists of multiple bunched micro electrode wires, measures the compound nerve action potential. The space-damping-vector-calculating section evaluates the damping effect corresponding to the distance between the micro electrode wires and nerve cells with no effect from a decrease in the signal-to-noise ratio. The single nerve action potential separating and extracting section extracts only the nerve action potential generated from a particular neuron by clustering the space-damping-vectors. These features enable the apparatus to separate and extract a single-nerve action spike with high precision even under conditions when the signal-to-noise ratio is low or at a site where cells are densely packed.

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patent: 5563067 (1996-10-01), Sugihara et al.
Z. Nadasdy et al., Society for Neuroscience Abstracts, Recognition of Spatially Separated . . . , vol. 21, part 2, p. 1206, 1995.
Bruce L. McNaughton et al., Journal of Neuroscience Methods, The stereotrode: A new . . . , vol. 8, pp. 391-397, 1983.

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