Fibrillation/tachycardia monitoring and preventive system and methodology
US7020517B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2004 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Jul 21, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36542
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac assist device senses conditions of a heart and controls the generation of various electrical stimuli in response to sense conditions of the heart. The cardiac assist device generates a electrical pulse so as to defibrillate a fibrillated heart when the cardiac assist device determines from the sensed conditions a state of fibrillation. The cardiac assist device generates a chaos control electrical signal so as to bring a pre-fibrillated heart condition back into a normal beating condition when the cardiac assist device determines from the sensed conditions a pre-state of fibrillation. Lastly, the cardiac assist device generates an electrical enhancement signal that causes a threshold of pacing cells in the heart to be exceeded in response to a subthreshold stimulus when the cardiac assist device determines from the sensed conditions a subthreshold pacing signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.