Multi-sensor blending in a rate responsive cardiac pacemaker
US5376106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1993 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Oct 18, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36585
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-sensor blending circuit for use in a rate responsive cardiac pacemaker. The blending logic circuit blends delta pacing rate signals from two or more sensors which measure physical and physiological parameters of a patient. Programmable equations stored in the blending logic circuit determine which percentages or a ratio of the delta pacing rate sensor signals comprise a single delta pacing rate signal as a function of the delta pacing rate. This delta pacing rate signal is provided to the pacing control circuitry of a pacemaker. The blending ratios are dynamically determined based on the pacing rate established at the most recent cardiac cycle. The blending equations are comprised of several programmable variables, wherein the equations can be programmed by the external programmer in view of clinical data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.