STEERABLE CATHETER WITH MULTIPLE BENDING RADII VIA A STEERING MECHANISM WITH TELESCOPING TUBULAR COMPONENTS
First Claim
1. A steerable catheter comprising:
- a tubular sheath having a lumen formed within a wall thereof; and
a steering mechanism disposed within the lumen, the steering mechanism comprising first and second steering components with at least a segment of the second steering component being coaxially disposed within the first steering component, wherein the first steering component and the second steering component are separately tensioned to bend respective regions of the tubular sheath.
1 Assignment
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Accused Products
Abstract
A steerable catheter includes a tubular sheath having a longitudinally-extending lumen formed within a wall thereof and a steering mechanism disposed within the longitudinally-extending lumen. The steering mechanism includes a pull tube and a pull wire. At least a segment of the pull wire is coaxially disposed within the pull tube. The pull tube has a distal end attached at a first anchor point to the tubular sheath, and the pull wire has a distal end attached at a second anchor point to the tubular sheath. The second anchor point is distal of the first anchor point. The pull tube and the pull wire are separately tensioned to bend respective regions of the tubular sheath.
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Citations
20 Claims
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1. A steerable catheter comprising:
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a tubular sheath having a lumen formed within a wall thereof; and a steering mechanism disposed within the lumen, the steering mechanism comprising first and second steering components with at least a segment of the second steering component being coaxially disposed within the first steering component, wherein the first steering component and the second steering component are separately tensioned to bend respective regions of the tubular sheath. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A steerable guide catheter comprising:
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a tubular sheath defining a central lumen sized to receive a medical device there-through, wherein a longitudinally-extending lumen is formed with a wall of the tubular sheath; a pull tube defining a pull wire lumen, the pull tube having a distal end attached at a first anchor point to the tubular sheath and having at least a segment slidably disposed within the longitudinally-extending lumen of the tubular sheath; and a pull wire having a distal end attached at a second anchor point to the tubular sheath and having at least a segment slidably disposed within the pull wire lumen of the pull tube, wherein the second anchor point is distal of the first anchor point, and wherein the pull tube and the pull wire are separately tensioned to bend respective regions of the tubular sheath. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A steerable delivery system for a prosthesis comprising:
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a tubular sheath defining a central lumen and having a lumen formed within a wall thereof; a pull tube having at least a segment slidably disposed in the lumen within the wall of the tubular sheath; a pull wire having at least a segment slidably disposed within the pull tube, wherein a distal end of the pull tube is attached at a first anchor point to the tubular sheath and a distal end of the pull wire is attached at a second anchor point to the tubular sheath and wherein the second anchor point is distal of the first anchor point; and wherein the pull tube and the pull wire are separately tensioned to bend respective regions of the tubular sheath. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification