Methods and systems for photoacoustic monitoring using indicator dilution
US8886294B2 · kind B2 · utility
17Cited by
24References
21Claims
0Family size
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Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6867
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient monitoring system may provide photoacoustic sensing based on an indicator dilution to determine one or more physiological parameters of a subject. The system may detect an acoustic pressure signal, which may include one or more thermo-dilution responses, one or more hemo-dilution responses, or a combination thereof, using one or more sensor units. The system may use multiple light sources and/or detectors to diagnose and/or improve signal to noise ratio, distinguish between arterial and venous signals, prevent under-sampling, and separate the effects of hemo-dilution and thermo-dilution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.