Leads for selective sensing and virtual electrodes
US9468754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2009 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Jul 18, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0541
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Selective sensing implantable medical leads include pulsing and sensing portions and pulsing and not sensing portion. Leads and electrodes may be used in defibrillation and as integrated bipolar defibrillation electrodes. An entire electrode can pass charge while a valve metal or valve metal oxide portion of the electrode prevents the entire electrode from sensing, effectively rejecting unwanted signals. Differential conduction pathways, due to the valve metal and/or oxides thereof, cause the portions of the electrodes to conduct differently when used anodically and cathodically. Complex intracardiac electrical gradient can be formed along with a number of virtual electrodes within the tissue. Reentrant loops can thereby be pinned following defibrillation shock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.