Use of an implantable cardiac pacing, defibrilation and/or resynchronization generator as a VNS generator for vagus nerve stimulation
US9884194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Oct 21, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36843
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
On a channel of an implantable cardiac generator, a cardiac lead is replaced by a vagus nerve stimulation VNS lead. The control circuit controlling the stimulation circuit of this channel of the generator is configured to generate sequences of VNS neurostimulation bursts according to a specific profile, synchronized or not with the heart rate. The control circuit dynamically controls the initial load voltage of the reservoir capacitor so as to adjust to a constant target value the electrical charge delivered to the nerve by each stimulating pulse, from a pulse to the next one and from a burst to the next one. This improves the consistency of the physiological effects of neurostimulation despite significant variations that may occur in impedance at the electrode/vagus nerve interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.