Extensible passive fixation mechanism for lead assembly of an implantable cardiac stimulator
US4913164A · kind A · utility
136Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1988 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Sep 27, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable lead for a cardiac stimulator has an electrode at its distal end, and resilient, non-penetrating, tissue-contacting elements integral with the lead in the vicinity of the electrode. The resilient elements are movable from a first unextended position for ease of insertion or withdrawal of the lead through the vein of a patient to a second extended position for contacting tissue to retain the electrode in a selected location in the heart of the patient. A device operable along the lead serves to selectively move the resilient elements from the unextended to the extended position or vice versa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.