Systems and methods for analyzing an infusion pump
First Claim
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1. An infusion pump analyzer comprising:
- a fluid flow path configured to be coupled to an infusion pump to be tested;
a pair of fluid chambers;
dual linear piston pumps coupled with the pair of fluid chambers and the fluid flow path to control the flow of fluid therethrough; and
a valve coupled with the pair of fluid chambers and configured to rotate to selectively fill and drain the pair of fluid chambers.
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Abstract
Systems and methods for analyzing an infusion pump are provided. One infusion pump analyzer includes a fluid flow path configured to be coupled to an infusion pump to be tested and a pair of fluid chambers. The infusion pump analyzer further includes dual linear piston pumps coupled with the pair of fluid chambers and the fluid flow path to control the flow of fluid therethrough, and a valve coupled with the pair of fluid chambers and configured to rotate to selectively fill and drain the pair of fluid chambers.
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Citations
11 Claims
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1. An infusion pump analyzer comprising:
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a fluid flow path configured to be coupled to an infusion pump to be tested; a pair of fluid chambers; dual linear piston pumps coupled with the pair of fluid chambers and the fluid flow path to control the flow of fluid therethrough; and a valve coupled with the pair of fluid chambers and configured to rotate to selectively fill and drain the pair of fluid chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling fluid metering for an infusion pump analyzer, the method comprising:
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starting linear motion of dual linear pistons in a first linear direction to drain one fluid chamber and fill another fluid chamber through passageways aligned with openings in a valve; stopping linear motion of the dual linear pumps when the draining and filling that define exhaust and intake phases, respectively, are completed; performing a valve cycle that causes a portion of the valve to rotate in a first direction to align the passageways with a different respective pair of openings; stopping the valve cycle, such that rotation of the valve is stopped; starting linear motion of the dual linear pistons in a second linear direction, the second linear direction being opposite to the first linear direction that caused filling and draining of the fluid chambers that were drained and filled, respectively, when the dual linear pistons were moved in the first linear direction; stopping linear motion of the dual linear pumps when the draining and filling that define exhaust and intake phases, respectively, are completed; performing a valve cycle that causes a portion of the valve to rotate in a second direction to align the passageways with a different respective pair of openings, the second direction being either the same or opposite to the first direction; and stopping the valve cycle, such that rotation of the valve is stopped.
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Specification