Pulse detection apparatus, software, and methods using patient physiological signals
US9248306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Aug 19, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36578
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac pulse in a patient is determined by evaluating physiological signals in the patient. A medical device evaluates two or more different physiological signals, such as phonocardiogram (PCG) signals, electrocardiogram (ECG) signals, patient impedance signals, piezoelectric signals, and accelerometer signals for features indicative of the presence of a cardiac pulse. Using these features, the medical device determines whether a cardiac pulse is present in the patient. The medical device may also be configured to report whether the patient is in a VF, VT, asystole, or PEA condition, in addition to being in a pulseless condition, and prompt different therapies, such as chest compressions, rescue breathing, defibrillation, and PEA-specific electrotherapy, depending on the analysis of the physiological signals. Auto-capture of a cardiac pulse using pacing stimuli is further provided. The medical devices, or any portion thereof, can be worn by the patient or may be attached to the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.