Controlled discharge defibrillation electrode
US5191901A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Aug 29, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0587
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A defibrillation electrode for implantation on or about the heart and for connection to a defibrillation system. The electrode comprises a plurality of electrically conductive elements spaced apart and electrically connected together, thus, increasing the number of discharging edges on the electrode. In a first embodiment, the electrode comprises a plurality of concentric conductive rings electrically connected together. In a second embodiment, the electrode comprises a plurality of conductive planar elements electrically connected together in a generally puzzle-like configuration. In a third embodiment, the electrode comprises electrically conductive wires wrapped around the length of a cardiac catheter. In a fourth embodiment, electrically conductive wires are concentrically spiralled into a spiral patch configuration. In a fifth specific embodiment, a plurality of electrically isolated active sites are provided on the distal portion of an endocardial catheter. In all of the above embodiments, the electrical discharge of energy from the electrode to the heart surface favors the conductive edges of the electrically conductive and connected components of the electrodes. Therefore, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.