Catheter with multiple lumens

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/00 (2006.01) A61M 25/06 (2006.01)

Patent

CA 2164195

The invention provides a catheter assembly (20) including a catheter (21) having an elongate main body (22) extending longitudinally between proximal and distal ends. A tip structure (26) is attached to the distal end of the main body and also extends longitudnally. The main body and tip structure combine to define side-by-side intake (28) and return (30, 51) lumens and the intake lumen terminates at a transverse intake opening (44) at the distal end of the main body. The return lumen terminates at the distal end of the tip structure at a transverse return opening (46) and a side opening (52) is provided adjacent the return opening. The assembly also includes a tubular applicator (54) which passes through the intake lumen, through the side opening and into the return lumen. This permits the assembly to be passed over a guide wile (55) by engaging the guide wire inside the tubular applicator and sliding the assembly over the guide wire.

L'invention se rapporte à un ensemble cathéter (20) comprenant un cathéter (21) qui présente un corps principal allongé (22) s'étendant longidudinalement entre les extrémités proximales et distales. Une structure (26) terminale est fixée à l'extrémité distale du corps principal et s'étend également longitudinalement. Le corps principal et la structure terminale s'associent pour définir des lumières adjacentes d'entrée (28) et de retour (30, 51), la lumière d'entrée se terminant au niveau d'un orifice d'entrée transversal (44) situé à l'extrémité distale du corps principal. La lumière de retour se termine à l'extrémité distale de la structure terminale, au niveau d'un orifice de retour transversal (46), et une ouverture latérale (52), adjacente à l'orifice de retour, est également prévue. L'ensemble comprend également un applicateur tubulaire (54) qui passe à travers la lumière d'entrée et l'ouverture latérale pour pénétrer dans la lumière de retour. Ceci permet de faire passer l'ensemble au-dessus d'un fil de guidage (55) par l'introduction de ce dernier dans l'applicateur tubulaire et le coulissement de l'ensemble au-dessus de fil de guidage.

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