Patent ID: 7963946
Filing Date: 2011-06-21
Classification: A61M,G16H,Y10S

Abstract:
1. A method for infusing an infusate into the body of a human or animal subject using an infusion profile having a number of infusion steps, said method comprising: A) assigning i) total infusate volume; ii) total number of infusion steps; iii) time duration per infusion step, iv) maximum infusion rate, v) initial infusion rate, vi) incremental increase in infusion rate and vii) ramp rate; B) calculating a first infusion step having i) a ramping segment wherein the infusion rate increases at the assigned ramp rate from zero to the assigned initial infusion rate and ii) a terminal segment; C) performing the first infusion step, wherein the infusion continues at approximately the assigned initial infusion rate until the assigned time duration has been reached; D) calculating a volume of infusate delivered during the preceding infusion step; E) calculating the remaining volume of infusate to be infused to deliver the assigned total infusate volume; F) calculating an additional infusion step based on the incremental increase in infusion rate, remaining volume of infusate to be infused and the volume of infusate delivered during the preceding infusion step, the additional infusion step having i) a ramping segment wherein the infusion rate increases at the assigned ramp rate from the infusion rate of the terminal portion of the preceding infusion step to a new infusion rate that is equal to the infusion rate of the terminal portion of the preceding infusion step plus the incremental increase in infusion rate, wherein the new infusion rate does not exceed the assigned maximum infusion rate and ii) a terminal segment; G) performing the additional infusion step, wherein the infusion continues at approximately said new infusion rate until the assigned time duration has been reached; and H) repeating Steps D through G until the assigned total infusate volume has been delivered.