Infusion device and method for administering a medical fluid to a patient
US11324885B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2018 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Jan 20, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/702
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An infusion device (1) for administering a medical fluid to a patient (P) comprises a pump mechanism (11) for administering a medical fluid to a patient (P) through a line set (3), a sensor device (14) for measuring a measurement value indicative of a pressure in the line set (3), and a processor device (15) configured to automatically set, in an initial phase, a threshold value (15) to a value determined based on at least a mechanical characteristic of the line set (3) and/or the pump mechanism (11) and to determine, in an operational phase, whether an occlusion condition in the line set (3) is present based on the measurement value and the threshold value (Pthres) —Herein, the processor device (15) is configured to adjust the threshold value (Pthres) if in the operational phase a pressure variation condition in the line set (3) different than an occlusion condition is detected by the processor device (15). In this way an infusion device is provided which may be able to reliably detect an occlusion condition even in case of multiple infusion devices acting on a line set in a multiline infusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.