Cardiac lead assembly and method of attaching a cardiac lead assembly
US5020545A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1990 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Jan 23, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0573
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac lead assembly for use with a heart pacemaker. The assembly has an inner electrode with a corkscrew tip, and an electrode housing which can be comprised of a second electrode. A conductor is connected to the inner electrode for supplying electricity thereto and is comprised of a tubular coil. The inner electrode can be manually moved longitudinally relative to the electrode housing by a stylet. The inner electrode and the housing cooperate to prevent axial rotation of the inner electrode at a first longitudinal position, but allow rotation at a second longitudinal position. The first conductor coil can be suitably twisted such that upon movement of the inner electrode to the second position the coil can automatically axially rotate the inner electrode to screw the corkscrew tip into a patient's heart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.