Dual lumen iv administration set

Abstract

A dual lumen IV administration set includes a first lumen having an inner diameter of a first value. A second lumen is paired with the first lumen, and the second lumen has an inner diameter of a second value that is greater than the first value. A flow merger merges flow output from a distal end of the first lumen and flow output from a distal end of the second lumen to form a single flow output in an exit lumen. An injection port intersects the first lumen, thereby providing injection access to flow therethrough, prior to merging with the flow output of the second lumen.

1 .- 20 . (canceled) 
     
     
         21 . A method of administering an IV to a patient, the method comprising steps of:
 connecting a dual lumen IV set to the patient, the dual lumen IV set including a first lumen having an inner diameter of a first value, and a second lumen having an inner diameter of a second value that is greater than the first value;   establishing an IV flow through the first lumen;   inputting a drug into the second lumen of the dual lumen IV set;   actuating a flush pump to draw IV fluid into the first lumen to regulate a volume of the IV flow; and   merging, into a merged flow, the IV flow in the first lumen and the drug in the second lumen, the merged flow being merged prior to entering the patient.   
     
     
         22 . The method according to  claim 21 , further comprising splitting the IV flow via a flow splitter to split input from a single flow input line into:
 a first flow into the first lumen, and   a second flow into the second lumen.   
     
     
         23 . The method according to  claim 22 , wherein the step of merging includes merging a flow output via a flow merger to combine the first flow that is output from a distal end of the first lumen and the second flow that is output from a distal end of the second lumen to form the merged flow in an exit lumen. 
     
     
         24 . The method according to  claim 23 , further comprising providing an injection port that intersects the first lumen after the flush pump and prior to the flow merger. 
     
     
         25 . The method according to  claim 23 , further comprising providing an injection port that intersects the second lumen after the flush pump and prior to the flow merger. 
     
     
         26 . The method according to  claim 23 , further comprising providing:
 a first injection port that intersects the first lumen after the flush pump and prior to the flow merger, and   a second injection port that intersects the second lumen after the flush pump and prior to the flow merger.   
     
     
         27 . The method according to  claim 23 , further comprising providing:
 a first injection port that intersects the first lumen after the flush pump and prior to the flow merger,   a second injection port that intersects the second lumen after the flush pump and prior to the flow merger, and   a third injection port that intersects the second lumen above the flush pump on the first lumen and before a lumen clamp on the second lumen.   
     
     
         28 . The method according to  claim 22 , wherein the flush pump is disposed inline with the first lumen after the flow splitter, the flush pump configured to regulate the volume of the IV flow via actuation of a valve disposed at a flow input end of the flush pump. 
     
     
         29 . The method according to  claim 21 , further comprising providing the first lumen as coupled longitudinally at least in part to the second lumen between respective outer surfaces thereof 
     
     
         30 . The method according to  claim 21 , wherein the step of actuating the flush pump includes manually squeezing the flush pump via hand. 
     
     
         31 . A method of administering an IV to a patient, the method comprising steps of:
 connecting a dual lumen IV set to the patient, the dual lumen IV set including a first lumen having an inner diameter of a first value, and a second lumen having an inner diameter of a second value that is greater than the first value;   establishing a first IV flow through the first lumen;   establishing a second IV flow through the second lumen;   providing an injection port in the second lumen for when a patient needs a drug injected;   actuating a flush pump to draw IV fluid into the first lumen to regulate a volume of the first IV flow; and   merging, into a merged flow, the first IV flow in the first lumen and the second IV flow in the second lumen, the merged flow being merged prior to entering the patient.   
     
     
         32 . The method according to  claim 31 , wherein the step of merging includes merging a flow output via a flow merger to combine the first IV flow that is output from a distal end of the first lumen and the second IV flow that is output from a distal end of the second lumen to form the merged flow in an exit lumen. 
     
     
         33 . The method according to  claim 31 , wherein the injection port is a first injection port, and
 wherein the method further comprises providing a second injection port that intersects the first lumen after the flush pump and prior to the flow merger.   
     
     
         34 . The method according to  claim 31 , wherein the injection port is a first injection port that intersects the second lumen before the flush pump, and
 wherein the method further comprises providing a second injection port that intersects the second lumen after the flush pump and prior to the flow merger.   
     
     
         35 . The method according to  claim 31 , wherein the injection port is a first injection port that intersects the second lumen before the flush pump, and
 wherein the method further comprises:
 a second injection port that intersects the first lumen after the flush pump and prior to the flow merger, and 
 a third injection port that intersects the second lumen after the flush pump and prior to the flow merger. 
   
     
     
         36 . The method according to  claim 31 , wherein the flush pump is disposed inline with the first lumen after a flow splitter, the flush pump configured to regulate the volume of the first IV flow via actuation of a valve disposed at a flow input end of the flush pump. 
     
     
         37 . The method according to  claim 31 , further comprising providing the first lumen as coupled longitudinally at least in part to the second lumen between respective outer surfaces thereof. 
     
     
         38 . The method according to  claim 31 , wherein the step of actuating the flush pump includes manually squeezing the flush pump via hand.