System and method for delivering a target volume of fluid
First Claim
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1. A pumping system for delivering a target volume of medical fluid, the system comprising:
- a flow-control system unit;
a cassette mounted in the flow-control system unit;
the cassette having;
a first pump chamber configured to pump the medical fluid; and
a second pump chamber configured to pump the medical fluid; and
a controller in operative communication with the cassette to control the first and second pump chambers, wherein the controller is configured to;
deliver one or more strokes of the first and second pump chambers, each stroke delivering a first incremental volume, until a first volume of the medical fluid is delivered, anddeliver, using one of the first or second pump chambers, a second volume of the medical fluid in increments each having a second incremental volume, wherein the second incremental volume is less than the first incremental volume.
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Abstract
A method for delivering a target volume of fluid to a destination is provided. The method includes delivering a first volume of fluid to the destination in increments each having approximately a first incremental volume, the first volume of fluid being less than the target volume and delivering a second volume of fluid to the destination in increments each having approximately a second incremental volume, the second incremental volume being less than the first incremental volume, such that the sum of the first volume and the second volume is approximately equal to the target volume.
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Citations
23 Claims
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1. A pumping system for delivering a target volume of medical fluid, the system comprising:
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a flow-control system unit; a cassette mounted in the flow-control system unit; the cassette having; a first pump chamber configured to pump the medical fluid; and a second pump chamber configured to pump the medical fluid; and a controller in operative communication with the cassette to control the first and second pump chambers, wherein the controller is configured to; deliver one or more strokes of the first and second pump chambers, each stroke delivering a first incremental volume, until a first volume of the medical fluid is delivered, and deliver, using one of the first or second pump chambers, a second volume of the medical fluid in increments each having a second incremental volume, wherein the second incremental volume is less than the first incremental volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification