Method and device for detecting an occlusion in an infusion line
US10814063B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 9, 2016 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Oct 21, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/332
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a method for detecting an occlusion in an infusion line (200) during an infusion process comprising the steps of receiving a periodically measured value of a force (F) that is applied by a pumping device (1) to push a liquid through the infusion line (200) and that is indicative of the pressure (P) in the infusion line (200), and subtracting from the measured force value (F) a frictional force component (F0), that is indicative of a true frictional force, for correcting the measured force value (F) by the true frictional force. The method is characterized in that the value of the frictional force component (F0) is periodically updated throughout the infusion process by applying an equation that comprises a term that takes into account the measured force (F).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.