Cardiac lead
US5255693A · kind A · utility
176Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Jun 10, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0587
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac lead for transmitting electric current to the heart and/or sensing and monitoring electrical activity of the heart has an elongated electrical conductor connected to a head. An electrode mounted on the head comprises a helical wire adapted to be turned into heart tissue. The helical wire is coated with platinum black particles which decrease electrical losses at the electrode-tissue interface. A plug impregnated with a drug located within the head is in contact with the helical wire and platinum black particles thereon. The drug migrates from the plug to the active outer end section of the electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.