Dilatation catheter
AssigneeSchneider (Europe) A.G.
InventorsEugen Hofmann, Susanne Pfenninger, Werner Niederhauser
Life of this patent
Estimating the term…
Abstract
The dilatation catheter has a shaft which consists of two separately produced shaft portions. Both portions have a first lumen for a guide wire and a second lumen for a pressure liquid. The two portions overlap at a connection point and are preferably welded to one another at this point. The proximal portion consists of two coaxial tube portions and the distal portion consists of an extruded two-lumen tube piece. The proximal portion is stiffer than the distal portion, which permits an optimal adaptation to a non-straight course of a blood vessel. The dilatation catheter according to the invention is particularly suitable for the treatment of arterial occlusions, which are situated in or downstream of a vessel curve.
Claims10
A dilation catheter for percutaneous transluminal recanalization of chronic arterial occlusions comprising a shaft having proximal and distal ends and a first shaft lumen extending therebetween, a dilatation balloon located proximate said distal end, with said first shaft lumen being adapted to receive a guide wire and with said shaft having a second shaft lumen for pressurizing said balloon, said shaft comprising at least two separately produced segments connected to one another wherein said segments include a proximal portion having two coaxial tube pieces defining inner and outer lumens and a more flexible distal portion having a two-lumen tube piece, said portions being connected to one another such that a first lumen of the distal portion is connected to said inner lumen of the proximal portion, and a second lumen of the distal portion is connected to said outer lumen of the proximal portion.
Dependencies are inferred from the claim text.