Diagnostic function data storage and telemetry out for rate responsive cardiac pacemaker
US5330513A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | May 1, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37211
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable physiologic device, e.g., a multi-programmable, microprocessor based cardiac pacemaker, is provided with data storage and transmission capabilities for transmitting out certain current operating parameters and sensed events and for storing counted events for transmission of counts, histograms and real-time clock data out on command. The device preferably comprises a rate responsive cardiac pacemaker for providing an optimized pacing rate of stimulation pulses as a function of at least one selected rate control parameter. Each rate control parameter has a value which varies as a function of changes in a patient's physiologic demand and includes a sensor system for sensing the rate control parameter value and for providing a sensor output representative thereof. The cardiac pacemaker also includes control circuitry which includes a rate response defining means for deriving desired pacing rates as a function of the sensor output signal(s) modified by sensor gain and selective weighting coefficient values. An achievement monitoring means that has a predetermined achievement criterion monitors the relationship between the derived pacing rates and the achievement criterion…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.