CATHETER ASSEMBLY WITH DISTINCT INFLATION AND DRUG DELIVERY CHANNELS AND OVERLAPPING BALLOON LAYERS

摘要

A catheter 100 is comprised of a shaft 120 having a distal end and a proximal end, the distal end being the end an end of the catheter 100 to be placed within the bladder 105, the proximal end being the end of the catheter 100 to be coupled to the inputs outside of the body, the shaft 120 having at least three discrete lumens, the at least three lumens including an inflation lumen 124, the inflation lumen 124 in fluid communication with an inflation side hole 130 in the shaft 120. The shaft has a drug delivery lumen 122, the drug delivery lumen 122 in fluid communication with a drug fluid side hole 128 in the shaft 120. The shaft has a bladder fluid lumen 126, the bladder fluid lumen 126 in fluid communication with a bladder drainage aperture 132 in the shaft 120, ;wherein distally refers to a distal reference direction 101 towards the elements to be placed in the bladder, and proximally refers to a proximal reference direction 103 towards inputs that remain outside of the body,wherein drug delivery lumen 122, the inflation lumen 124, and the bladder fluid lumen 126 are not in fluid communication.