Tube measurement technique using linear actuator and pressure sensor
US8567235B2 · kind B2 · utility
39Cited by
477References
21Claims
0Family size
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Key dates
| Filing date | Jun 29, 2010 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jan 23, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3331
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An infusion pump uses sensors, movable members and a control unit to determine tubing thickness in a tube-loading section of the pump. The infusion pump utilizes sensors, such as a pressure sensor, to record forces imparted by a tube undergoing no pressure, a single pressure, or a pressure sweep, to determine thickness. Using these values, the tubing wall thickness can be determined. The infusion pump can also compress a tube using a movable member of the pump and records the distance traveled by the movable member to compress fully the tube. Using this distance, the tubing wall thickness can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.