Dilation catheter
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United States of America Patent
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Jun 30, 1998
Grant Date -
N/A
app pub date -
Oct 30, 1995
filing date -
Mar 2, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A dilation catheter comprising a sealed distal end section (8), an open proximal end section (3) and an elongated middle section with an elongated flexible balloon section (11). The middle section comprises an inner elastic tube (1), a reinforcement net (2) made of metallic monofilaments surrounding the inner tube (1) and an outer elastic tube (6) surrounding the reinforcement net (2). The reinforcement net (2) is made of metallic monofilaments crossing each other and being helically wound around the longitudinal axis of the middle section. There is no special bond between the monofilaments so that said filaments are moveable with respect to each other in the crossover points (5) during expansion of the balloon section (11). As a result the entire catheter assumes the geometrical configuration of the blood vessel during insertion and inflation of the dilation section without noticeable axial dislocation or distortion of the natural bent of the blood vessel.
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