Infusion device and method for administering a medical fluid to a patient
US11246983B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2016 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Jul 13, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/52
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An infusion device includes a pump for pumping a medical fluid from a fluid container through a delivery line towards a patient at a flow rate, a sensor for measuring a force on the pump or the delivery line, and a processor device configured to derive, from the force measured by the sensor, a pressure value indicative of the pressure in the delivery line and to compare the pressure value to a threshold value for determining whether an occlusion in the delivery line is present. A storage device stores a compliance value associated with the pump and/or the delivery line, and the processor device is configured to compute, from the stored compliance value, the flow rate and the threshold value, an estimate of a duration between the time of an occurrence of an occlusion and the time at which the pressure value exceeds the threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.