Apparatus and method of assessing a narrowing in a fluid filled tube
US9026384B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 6, 2012 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | May 31, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6852
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method of assessing a narrowing in a fluid filled tube having a fluid flow pressure wave having a backward-originating pressure component and a forward-originating pressure component without taking a flow velocity measurement, comprising: taking pressure measurements in the tube; separating the pressure components into the backward-originating pressure component and the forward-originating pressure component; identifying a time window when the differential of flow velocity (dU) is minimal or absent; and deriving the backward and forward pressure components for pressure measurements taken in at least the time window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.