Single-nerve-action-potential-measuring apparatus
US5692516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Jul 10, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/293
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.