Bi-chamber cardiac pacing system employing unipolar left heart chamber lead in combination with bipolar right chamber lead
US6421564B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3627
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a bi-ventricular pacing system, an implantable pulse generator optionally having an IPG indifferent electrode is coupled to a small diameter, unipolar, left ventricular (LV) lead and a bipolar right ventricular (RV) lead. The LV lead is advanced through the superior vena cava, the right atrium, the ostium of the coronary sinus (CS), the CS, and into a coronary vein descending from the CS to locate the LV active pace/sense electrode at a desired LV pace/sense site. An LV lead placed on an epicardial surface can substitute. The RV lead in a preferred embodiment is advanced into the RV chamber to locate RV active and indifferent pace/sense electrodes therein. Sensing of RV spontaneous cardiac depolarizations to provide a RV sense event signal and delivery of RV pacing pulses is conducted across the RV active pace/sense electrode and one of the RV or IPG indifferent pace/sense electrodes. Sensing of LV spontaneous cardiac depolarizations to provide a LV sense event signal is conducted across the LV active pace/sense electrode and one of the RV active or indifferent pace/sense electrodes or the IPG indifferent pace/sense electrodes. Delivery of LV pacing pulses is conducted across th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.