Implantable cardiac stimulation device and method for self-regulating sampling of measured parameters
US6366812B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Mar 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H40/67
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable cardiac device, such as a pacemaker or an implantable cardioverter-defibrillator that has a control unit which is adapted to sample a time-varying parameter relating to either the patient's changing physiological condition or to the delivery of therapeutic electrical stimulation pulse to the heart at a sampling frequency. The control unit is adapted to increase the sampling frequency when the variation between successive measurements of the parameter exceed a preselected value. The control unit is further adapted to decrease the sampling frequency when the variation between successive measurements of the parameter are less than a preselected value. In alternate embodiments, the parameter to be sampled is capture threshold, sensing threshold, lead-tissue impedance, and battery performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.