Infusion pump system and method with common line auto flush

Abstract

An infusion pump system and method with common line auto flush, wherein the infusion pump system has a first reservoir, a second reservoir, a junction, a common line having one end in fluid connection with the junction and having a terminal fluid delivery end, and an infusion pump. The method includes infusing the first fluid at a first rate along a first flow path; entering a common line flush volume value for the common line; switching from the first flow path to a second flow path; driving the second fluid at the first rate along the second flow path; monitoring volume of the second fluid driven at the first rate; and driving the second fluid at a second rate along the second flow path when the monitored volume is equal to or greater than the common line flush volume value.

What is claimed is: 
     
         1 . A control system for controlling operation of an infusion pump of an infusion pump system, the infusion pump system comprising a first reservoir configured to hold a first fluid, a second reservoir configured to hold a second fluid, a junction in fluid communication with the first reservoir and the second reservoir, a common line in fluid communication with the junction and having a terminal fluid delivery end, and the infusion pump, wherein the infusion pump is operable to drive fluid through the common line toward the terminal fluid delivery end, the control system comprising:
 one or more hardware processors; and   a memory storing executable instructions that when executed by the one or more hardware processors, configure the infusion pump to:
 receive instructions to deliver the first fluid at a first rate followed by the second fluid at a second rate; 
 infuse the first fluid at the first rate along a first flow path, the first flow path including the common line; 
 determine a common line volume corresponding to a volume of the common line; 
 infuse the second fluid at the first rate along a second flow path, the second flow path including the common line; 
 determine that an infused volume of the second fluid equals or exceeds the common line volume; and 
 change the infusion rate of the second fluid from the first rate to the second rate, and continue to infuse the second fluid along the second flow path. 
   
     
     
         2 . The control system of  claim 1 , wherein the instructions further configure the infusion pump to receive the common line volume from a user input. 
     
     
         3 . The control system of  claim 1 , wherein the instructions further configure the infusion pump to retrieve the common line volume from the memory. 
     
     
         4 . The control system of  claim 1 , wherein the instructions further configure the infusion pump to retrieve the common line volume over a network. 
     
     
         5 . The control system of  claim 1 , wherein the common line volume is predetermined. 
     
     
         6 . The control system of  claim 1 , wherein the instructions further configure the infusion pump to determine the common volume based on the first fluid. 
     
     
         7 . The control system of  claim 1 , wherein the first rate is different than the second rate. 
     
     
         8 . The control system of  claim 1 , wherein the instructions further configure the infusion pump to receive the instructions for the delivery from an input via a user interface. 
     
     
         9 . The control system as in  claim 1 , wherein the instructions further configure the infusion pump to automatically generate a user interface configured to receive an input for the first volume based on a determination of sequential delivery of two different fluids. 
     
     
         10 . The control system of  claim 9 , wherein the instructions further configure the infusion pump to control a valve, wherein the valve is configured to switch the infusion of the first fluid along the first flow path to the infusion of the second fluid along the second path. 
     
     
         11 . The control system of  claim 1 , wherein the instructions further configure the infusion pump to generate a control signal to begin the infusion. 
     
     
         12 . The control system of  claim 11 , wherein the instructions further configure the infusion pump to generate a control signal to stop the infusion. 
     
     
         13 . A method for controlling operation of an infusion pump of an infusion pump system, the infusion pump system comprising a first reservoir configured to hold a first fluid, a second reservoir configured to hold a second fluid, a junction in fluid communication with the first reservoir and the second reservoir, a common line in fluid communication with the junction and having a terminal fluid delivery end, and the infusion pump, wherein the infusion pump is operable to drive fluid through the common line toward the terminal fluid delivery end, the method comprising:
 receiving instructions to deliver the first fluid at a first rate followed by the second fluid at a second rate;   infusing the first fluid at the first rate along a first flow path, the first flow path including the common line;   determining a common line volume corresponding to a volume of the common line;   infusing the second fluid at the first rate along a second flow path, the second flow path including the common line;   determining that an infused volume of the second fluid equals or exceeds the common line volume; and   changing the infusion rate of the second fluid from the first rate to the second rate, and continuing to infuse the second fluid along the second flow path.   
     
     
         14 . The method of  claim 13 , wherein determining the common line volume comprises receiving the common line volume from a user input. 
     
     
         15 . The method of  claim 13 , wherein determining the common line volume comprises retrieving the common line volume from a memory. 
     
     
         16 . The method of  claim 13 , wherein determining the common line volume comprises retrieving the common line volume over a network. 
     
     
         17 . The method of  claim 13 , wherein the first volume is predetermined. 
     
     
         18 . The method of  claim 13 , wherein determining the common line volume comprises determining the common line volume based on the first fluid. 
     
     
         19 . The method of  claim 13 , wherein the first rate is different than the second rate. 
     
     
         20 . The method of  claim 13 , wherein receiving the delivery instructions comprises receiving the instructions from an input via a user interface.