Haemodynamic data estimation
US10966617B2 · kind B2 · utility
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31Claims
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Key dates
| Filing date | Mar 11, 2010 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Sep 1, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/4245
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Techniques exist for measuring local blood velocity of flow rate waveforms in, for example, mammalian vascular segments. A method and system for deriving information on disease in vascular segments, for example mean pressure, drop in mean pressure and/or hydraulic resistance, from such measured waveforms is described. The waveforms can, for example, be measured non-invasively using Doppler ultrasound or magnetic resonance techniques. Form factors (Vff, Pff) for the velocity waveform and the central arterial pressure are determined. Stenosis may be detected by detecting changes e.g in Vff/Pff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.