Non-invasive method and device of measuring the real-time continuous pressure of fluid in elastic tube and the dynamic compliance of elastic tube
US9339196B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Sep 24, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6843
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention presents a non-invasive method and device of measuring the real-time continuous pressure of fluid fluctuating in an elastic tube and the dynamic compliance of the elastic tube, in which the theory of VLDT (Vascular Loading Decoupling Technique) is used. After searching the initial critical depth and determining the decoupled ratio, a DC controller generates a DC control gain to maintain the elastic tube at critical depth, and an AC controller employs the self-adaptive and Step-Hold control rules to create the pulsation of elastic tube without effect of surrounding tissues, and be capable of measuring the real-time continuous fluid pressure and dynamic compliance of elastic tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.