Embolization microcatheter for delivery of beads to peripheral vessels
OwnerJudy Cashdan, Tom Dagan +3inventors
InventorsJudy Cashdan, Tom Dagan, Yuval Zipory, Osnat Harbater, Eran Miller
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Abstract
An embolization microcatheter including an elongated main body and a distal section, the distal section comprising an off-setting portion and a winding portion, wherein the winding portion comprises about half a loop of a three-dimensional spiral, such that a longitudinal axis of the winding portion is offset and/or disposed at an acute angle relative to a longitudinal axis of the elongated main body, and wherein the off-setting portion is disposed at an angle of between about 60° and about 120° degrees relative to the longitudinal axis of the elongated main body.
Claims19
An embolization microcatheter comprising an elongated main body and a distal section, the distal section comprising an off-setting portion and a winding portion;
- wherein the winding portion comprises about half a loop of a three-dimensional spiral, such that a longitudinal axis of the winding portion is offset and/or disposed at an acute angle relative to a longitudinal axis of the elongated main body;
- wherein the off-setting portion is disposed at an angle of between about 60° and about 120° degrees relative to the longitudinal axis of the elongated main body, and wherein the winding portion is configured to maneuver the microcatheter longitudinally in a screw-like motion thereby preventing collapsing and/or vibrating and/or whipping of the distal section of the microcatheter, and
- wherein the embolization microcatheter has an average peak tracking force of less than 0.4 N.
A method for producing an embolization microcatheter distal section that defines a non-planar curve, the method comprising:
- providing a 3-dimensional mandrel comprising an off-setting portion and a winding portion, wherein the winding portion comprises about half a loop of a three-dimensional spiral, such that a longitudinal axis of the winding portion is offset and/or disposed at an acute angle relative to a longitudinal axis of the elongated main body;
- and
- wherein the off-setting portion is disposed at an angle of between about 60° and about 120° degrees relative to the longitudinal axis of the elongated main body;
- in a heat chamber forming the embolization microcatheter tube on the mandrel, thereby producing the embolization microcatheter having the shape of the mandrel.
Dependencies are inferred from the claim text.