Neural stimulation system providing auto adjustment of stimulus output as a function of sensed pressure changes
US7239920B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2003 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Apr 17, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/03
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A neural stimulation system automatically corrects or adjusts the stimulus magnitude in order to maintain a comfortable and effective stimulation therapy. Auto correction of the stimulus magnitude is linked to the measurement of pressure in the vicinity of the electrode-tissue interface. Because the pressure near the electrode-tissue interface can provide a measure of the electrode contacts' proximity to the neural tissue, and hence quantity of electrical energy delivered to the neural tissue, a change in the measured pressure or pressure morphology indicates that the stimulation energy may need to be adjusted. Hence, changes in pressure provide a feedback mechanism that permit the system to effectively auto correct the stimulus amplitude in order to maintain a desired therapeutic effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.