Patent ID: 7419479

Claim:
A catheter for delivering fluid into, or aspirating fluid out of, a body cavity or cavities, comprising: a) a multiple lumen tube containing at least first and second lumens and having a proximal end and a distal end, said tube containing a septum separating said first and second lumens, said tube being formed so that said first lumen is shorter than said second lumen at said distal end whereby said second lumen opens and said septum terminates at a predetermined distance from where said first lumen opens at said distal end of said multiple lumen tube; b) a first bolus having a nose end and a connector end and an axial passage therethrough; c) said first bolus being formed independently of said multiple lumen tube and said distal end of said multiple lumen tube being seated in said axial passage at said connector end of said first bolus; d) only a single lumen catheter tube separate from said multiple lumen tube and seated in said axial passage of said first bolus at its nose end, said single lumen tube extending from a proximal end to a distal end and a port in said distal end; and e) a second bolus on the distal end of said single lumen catheter tube; f) said port in said distal end of said single lumen tube being formed in the side of said second bolus.