Optimizing the stimulus current in a surface based stimulation device
US8897885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2008 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jul 9, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36034
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and associated stimulation device for ensuring firing of an action potential in an intended physiological target activated by a stimulus pulse generated by an electrode of a non-invasive surface based stimulation device irrespective of skin-to-electrode impedance by: (i) increasing internal impedance of the stimulation device so as to widen a Chronaxie time period thereby ensuring firing of the action potential of the intended physiological target irrespective of the skin-to-electrode impedance; and/or (ii) generating a stimulation waveform that optimizes a non-zero average current (e.g., non-zero slope of the envelope of the stimulation waveform) during preferably substantially the entire current decay of the stimulus pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.