Determining systolic time intervals using heart sounds
US9101275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2014 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Feb 25, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods are provided for using information from a subject heart sound signal and information from a subject physiological pulsatile signal to identify subject systolic time intervals. An example system for identifying systolic time intervals includes a heart sound detector circuit, configured to detect a subject heart sound signal using an acoustic signal. The system can include a physiological signal sensing circuit configured to detect a physiological pulsatile signal, including at least one of a pulsatile cervical impedance signal or a pulsatile pulmonary artery pressure signal. A timing circuit can be configured to calculate a systolic time interval between a feature on the heart sound signal and a feature on the pulsatile signal. A subject physiologic diagnostic indication can be provided using information from the timing circuit about the systolic time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.