Positive anchoring A-V lead
US4402329A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Sep 28, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/056
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A single pass atrial-ventricular transvenous pacing lead wherein the atrial branch has a positive fixation device. The proximal end of the lead has a standard electrical connector for coupling both atrial and ventricular electrodes to an implantable pulse generator. The lead is bifurcated at a point near or above the superior vena cava during normal transvenous insertion. The atrial and ventricular branches are of a fixed length from the point of bifurcation to the distal tip. The ventricular branch preferably employs a passive fixation device such as tines to maintain the ventricular electrode within the right ventricular apex. The atrial branch is positioned in the normal manner under control of a stylet to obtain optimal sensing and stimulation thresholds. This position is maintained using an active fixation device. Preferably the active fixation device is a helix which is screwed into the atrial wall by rotating the atrial connector pin and conductor coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.