Implantable cardiac stimulator for detection and treatment of ventricular arrhythmias
US4830006A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1986 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Jun 17, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3621
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable cardiac stimulator integrates the functions of bradycardia and anti-tachycardia pacing-type therapies, and cardioversion and defibrillation shock-type therapies. The stimulator is programmable to provide a multiplicity of hierarchical detection algorithms and therapeutic modalities to detect and treat classes of ventricular tachycardia according to position within rate range classes into which the heart rate continuum is partitioned, and thus according to hemodynamic tolerance, with backup capabilities of defibrillation and bradycardia pacing at the higher and lower regions of the rate continuum outside the range of the ventricular tachycardia classes. Aggressiveness of the therapy is increased with elapsed time and increasing heart rate, and detection criteria are relaxed with increasing heart rate and thus with increasing hemodynamic intolerance of the tachycardia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.