Implantable medical device with automatic ischemia threshold determination
US7996084B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2006 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Nov 23, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37252
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable medical device (IMD) performs periodic testing of a patient to determine ischemia threshold information. At selected times while the patient is at rest, the IMD increases the pacing rate over time until it receives feedback either from the patient or from an ischemia sensor. The IMD determines the threshold based upon the pacing rate at the time when the feedback was received. The threshold information can be used to adjust the upper pacing rate that can be used during rate adaptive pacing, to determine the effects of drug therapy, and to provide a general indication of the state of coronary artery disease in the patient. The periodic increase of pacing rate to the ischemic zone also provides a preconditioning of the myocardium to allow the patient greater exercise benefit without angina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.