Sleeve catheter

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/14 (2006.01) A61M 25/00 (2006.01) A61M 25/10 (2006.01) A61B 17/22 (2006.01)

Patent

CA 2167573

In a sleeve catheter (10) for supplying medicine to the walls of a vessel or tubular organ in which a number of outer lumina (18) extend longitudinally around a central lumen, the outer lumina have radial discharge openings (24) in the area of the head portion (16) of the catheter, which is slidable onto a balloon catheter (11) in order to be disposed at least partially on the balloon of the balloon catheter so as to be expandable thereby into abutment with the inner wall of a vessel to be dilated whereby medicine can be supplied through the discharge openings (24) in the outer lumina under pressure directly to the tissue of the vessel adjacent the outer lumina, thereby applying the medicine solely to the area engaged by the outer surface of the head portion (16).

Un cathéther à manchon (10) avec une lumière centrale (20) présente sur son pourtour une couronne de lumières extérieures (18) qui se termine dans la section avant (16) par des orifices de sortie (24). Le cathéter à manchon est glissé avec sa lumière centrale sur un cathéter à ballonnet (11), de sorte que la section avant (16) peut s'élargir par gonflement du ballonnet (12) jusqu'à venir au contact de la paroi intérieure du vaisseau. Le fluide acheminé par les lumières extérieures (18) ou introduit dans ces lumières est appliqué dans le vaisseau ou la paroi du vaisseau au moyen d'une pression à travers les orifices de sortie (24). On peut ainsi transporter des médicaments par une opération simple, depuis l'extérieur du corps jusqu'à une zone à traiter étroitement délimitée.

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