Occlusion detection for infusion pumps
US11771825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2020 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Nov 19, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H50/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system including a tube and a force sensor coupled to a wall of the tube via a restraining element and configured to obtain a value of a tubing force when the tube is deformed by the restraining element. The system includes a processor to determine parameters for fitting a curve including the value of the tubing force, to determine a fluid pressure value for a fluid in the tube based on the parameters for fitting the curve, and to activate an alarm responsive to the fluid pressure value and to the parameters for fitting the curve when an occlusion condition is identified in the tube. The parameters for fitting the curve comprise at least one time-decaying parameter(s) associated to the tubing force. A method for using the system and a non-transitory computer readable medium including instructions to perform the above method are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.