Bolus tip design for a multi-lumen catheter

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/00 (2006.01) A61M 1/36 (2006.01) A61M 25/00 (2006.01) A61M 1/16 (2006.01)

Patent

CA 2389227

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).

L'invention concerne un embout à bolus (100) destiné à un cathéter multilumière (10) permettant l'injection et l'extraction simultanées de fluides chez un patient. L'embout à bolus (100), constitué de préférence de silicone ou de polyuréthane, possède un corps allongé arrondi composé d'une partie de liaison (105) et d'une pointe avant (140). La partie de liaison (105) comprend deux canaux distincts (112, 122) pour l'écoulement du fluide. Le premier et le second canal (112, 122) sont parallèles l'un à l'autre et sont séparés par une partie de séparation (130). Le premier canal (112) s'ouvre sur une cavité de bolus en forme de U (114) située entre la partie de liaison (105) et la pointe avant (140). Le second canal (122) peut soit traverser la pointe avant (140) soit se terminer dans une seconde cavité de bolus (224) située longitudinalement entre la première cavité de bolus (114) et l'embout (142) de la pointe avant (140) sur un côté directement en face de la première cavité de bolus (114).

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