In situ tubing measurements for infusion pumps
US8496613B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jan 30, 2012 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3375
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An infusion pump having a tubing clamping section including a movable and a stationary portion. The infusion pump includes at least one sensor for detecting a contact length of tubing within the movable and/or the stationary portion. The infusion pump includes a shuttle having a shuttle stationary and a shuttle moveable portion, and is configured to squeeze a length of the tubing between the shuttle portions. The infusion pump includes a motor connected to the shuttle moveable portion via a shaft. The motor moves the shuttle moveable portion towards and away from the shuttle stationary portion. The infusion pump includes a controller and an encoder that detects a position of the shaft. The controller converts the detected position into a travel distance of the shuttle moveable portion, and calculates a diameter and a thickness of the tubing based on the travel distance and the contact length of the tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.