Implantable medical device with nerve signal sensing
US7225016B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jun 18, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable medical device which has a sensor that provides a waveform to an energy accumulator, such as a capacitor. The waveform is representative of electrical activity from a nerve. The implantable medical device further includes a threshold detector which provides a discrete output signal when the energy in the signal energy accumulator exceeds a threshold. The signal energy accumulator can be periodically discharged and then recharged during the time period that electrical activity is being sensed from the nerve thereby generating a number of discrete output signals each time the recharged energy accumulator exceeds the threshold. The frequency and number of pulsed outputs is indicative of the sensed electrical activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.