MECHANICAL INTERLOCK FOR CATHETERS
First Claim
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1. An intravascular device delivery system, the system comprising:
- an elongated member, the elongated member including;
a steerable catheter having a proximal end, a distal end, and a longitudinal axis extending therebetween; and
a flexible hypotube sheath positioned radially outside and circumferentially about the steerable catheter and coaxial with the steerable catheter, the flexible hypotube sheath including at least one island cut and at least one slit cut to direct flexibility of the flexible hypotube,wherein the flexible hypotube and the steerable catheter are rotationally fixed to one another at a first key assembly.
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Abstract
An intravascular device delivery system has an elongated member with a flexible hypotube. The hypotube can be rotationally keyed to a steerable catheter. The flexible hypotube includes one or more cuts to allow bending of the flexible hypotube within a first plane. The steerable catheter is steerable to bend the flexible hypotube within the first plane, and longitudinally movable relative to the flexible hypotube to allow distal movement of the steerable catheter relative to a distal end of the flexible hypotube.
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Citations
27 Claims
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1. An intravascular device delivery system, the system comprising:
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an elongated member, the elongated member including; a steerable catheter having a proximal end, a distal end, and a longitudinal axis extending therebetween; and a flexible hypotube sheath positioned radially outside and circumferentially about the steerable catheter and coaxial with the steerable catheter, the flexible hypotube sheath including at least one island cut and at least one slit cut to direct flexibility of the flexible hypotube, wherein the flexible hypotube and the steerable catheter are rotationally fixed to one another at a first key assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An intravascular device delivery system, the system comprising:
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a handle having one or more controls thereon; and an elongated member operably coupled to the handle, the elongated member including; a steerable catheter having a proximal end, a distal end, and a longitudinal axis extending therebetween, the steerable catheter being steerable in at least two planes, a flexible hypotube sheath positioned radially outside and circumferentially about the steerable catheter and coaxial with the steerable catheter, the flexible hypotube sheath including at least one island cut and at least one slit cut to direct flexibility of the flexible hypotube, wherein the flexible hypotube and the steerable catheter are rotationally fixed to one another at a first key assembly at a proximal end of the flexible hypotube, at least one of the one or more controls configured to move the steerable catheter longitudinally relative to the flexible hypotube. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for positioning an end of an intravascular device delivery system, the method comprising:
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steering a steerable catheter in a first plane, the steerable catheter being positioned radially inside a flexible hypotube; bending the flexible hypotube in the first plane to create a first bend in the flexible hypotube; advancing the steerable catheter distally relative to the flexible hypotube and distal of a distal end of the flexible hypotube; steering the steerable catheter in a second plane; and positioning a distal end of the steerable catheter at a target location. - View Dependent Claims (24, 25, 26, 27)
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Specification