BOLUS TIP DESIGN FOR A MULTI-LUMEN CATHETER

摘要

A bolus tip (100) for a multi-lumen catheter (10) for simultaneous injection and withdrawal of fluids to and from a patient. The bolus tip (100), preferably made of silicone or polyurethane, has a rounded elongate body consisting of an interfacing section (105) and a nose section (140). The interfacing section (105) includes two separate channels (112, 122) for fluid flow. The first and second channels (112, 122) run parallel to one another and are separated by a dividing section (130). The first channel (112) opens to a first bolus U-shaped cavity (114) located between the interfacing section (105) and nose section (140). The second channel (122) can extend either through the nose section (140) or terminates at a second bolus cavity (224) located longitudinally between the first bolus cavity (114) and the tip (142) of the nose section (140) on a side directly opposite the first bolus cavity (114).