Systems and methods using induced perturbation to determine physiological parameters
US8506498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2008 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Sep 30, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0223
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
According to embodiments, systems and methods for non-invasive blood pressure monitoring are disclosed. An exciter may induce perturbations in a subject, and a sensor or probe may be used to obtain a detected signal from the subject. The detected signal may then be used to measure one or more physiological parameters of the patient. For example if the perturbations are based on a known signal, any differences between the known signal and the input signal may be attributable to the patient's physiological parameters. A phase drift between the perturbation signal and the detected signal may be determined from a comparison of the scalograms of the exciter location and the sensor or probe location. From the scalogram comparison, more accurate and reliable physiological parameters may be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.