Infusion pump actuators, system and method for controlling medical fluid flowrate
US8137083B2 · kind B2 · utility
44Cited by
478References
22Claims
0Family size
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Key dates
| Filing date | Mar 11, 2009 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Dec 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/85986
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An infusion pump includes an actuator having an output shaft; a pump actuator having a length (lactuator) moved by the output shaft and in contact with tubing, such that the pump actuator at an output shaft actuated distance (x) creates flat contact areas with the tubing, and wherein remaining non-contact areas of the tubing are at least substantially circular in shape; and a logic implementer configured to use at least two relationships to solve for a same number of variables to calculate a cross-sectional area of the tubing at an output shaft actuated distance (x).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.