Non-barometric determination of hemodynamic effects of cardiac arrhythmias using signals sensed by an implantable device
US11903683B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2019 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36585
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Certain aspects of the present disclosure provide methods, apparatus, and computer-readable media for determining hemodynamic stability in a subject. In one example method, an optical signal is transmitted via at least one optical fiber in a set of one or more optical fibers partially disposed in a heart of the subject, wherein the at least one optical fiber in the set is configured to bend with the mechanical movement of the heart. A reflected portion of the optical signal is received via the at least one optical fiber, wherein changes in at least one parameter of the received reflected portion of the optical signal are indicative of the mechanical movement of the heart. A hemodynamic stability of the heart is determined based on the received reflected portion. Hemodynamic stability of the subject may further be determined based on thermal, ultrasound, and/or impedance signals measured in or near the heart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.