System and method for delivering a target volume of fluid
AssigneeDEKA Products Limited Partnership
InventorsCarl R. Distler, Gregory L. Distler, Jason A. Demers, Geoffrey P. Spencer, Robert J. Bryant, JR.
Life of this patent
Estimating the term…
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.
Claims16
-26. (canceled)
A method for delivering a volume of medical fluid, the system comprising:
- pumping fluid in a first volume increment using a first pump chamber;
- pumping fluid in a first volume increment using a second pump chamber;
- repeating the first two pumping acts until a predetermined amount of fluid is delivered;
- determining which of the first and second pump chambers pumped the least amount of fluid;
- pumping fluid in a second volume increment using the determined one of the first and second pump chambers that pumped the least amount of fluid;
- and
- repeating pumping of the second volume increments until the total volume pumped equals a target volume.
-42. (canceled)
A method for operation of a cassette configured to pump a volume of fluid, the cassette having at least a membrane with at least a first and second membrane portion the method comprising:
- actuating the first membrane portion to move fluid in approximately a first volume increment;
- actuating the second membrane portion to move fluid in approximately the first volume increment;
- repeating the first two pumping acts until a predetermined amount of fluid is delivered;
- determining which of the first and second pump chambers pumped the least amount of fluid;
- pumping fluid in a second volume increment using the determined one of the first and second pump chambers that pumped the least amount of fluid;
- and
- repeating pumping of second volume increments until the total volume pumped equals a target volume.
Dependencies are inferred from the claim text.