Rate responsive pacemaker with exercise recovery using minute volume determination
US5836988A · kind A · utility
30Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | May 2, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36521
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A rate responsive implantable pacemaker generates a metabolic demand parameter which is converted into a corresponding metabolic indicated parameter. The parameter is used to determine certain characteristics related to an exercise period and the patient, including exercise duration and intensity. These characteristics are used to dynamically calculate an exercise recovery period during which the pacing rate is elevated above a rate indicated by the metabolic parameter. Preferably, fuzzy logic circuitry is used for this purpose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.