Method and apparatus for controlling a neural stimulus
US9381356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2012 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Sep 7, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0551
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable device applies and controls a neural stimulus. The device has a plurality of electrodes, and a stimulus source for providing a stimulus to be delivered from the electrodes to a neural pathway in order to evoke an action potential on the neural pathway, such as the spinal cord. A control unit controls application of a neural stimulus as defined by a set of parameter values and measures via measurement circuitry an evoked neural compound action potential response. The control unit determines from the measured evoked response a feedback variable, and compares it to a therapy map. The therapy map defines a therapeutic relationship of control variable to feedback variable. One or more of the stimulus parameter values are altered to effect the required change in the control variable. This process is performed iteratively to improve alignment of the feedback variable with the therapy map over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.