STENT DELIVERY CATHETER
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Accused Products
Abstract
Stent delivery catheters adapted to provide both flexibility and strength are disclosed. Such stent delivery catheters may have outer shafts adapted for tensile strength and inner shafts adapted for compressive strength. In some instances, at least one of the outer shaft and/or the inner shaft may include a micromachined portion.
117 Citations
21 Claims
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1. (canceled)
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2. A micromachined hypotube comprising:
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an elongate cylindrical shaft having an interior surface and an exterior surface; a plurality of rings formed within the elongate cylindrical shaft, the plurality of rings sized and configured for tensile strength; a plurality of beams interspersed between adjacent rings, the plurality of beams sized and configured for flexibility; and a plurality of voids extending between the interior surface and the exterior surface, the plurality of voids defining the plurality of rings and the plurality of beams; wherein a first void of the plurality of voids extends circumferentially about the elongate cylindrical shaft between a first beam of the plurality of beams and a second beam of the plurality of beams; wherein the first void comprises a first widened portion proximate the first beam and a second widened portion proximate the second beam. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 19, 20, 21)
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14. A micromachined hypotube comprising:
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an elongate cylindrical shaft having an interior surface and an exterior surface; a plurality of rings formed within the elongate cylindrical shaft, the plurality of rings sized and configured for tensile strength; a plurality of beams interspersed between adjacent rings, the plurality of beams sized and configured for flexibility; and a plurality of voids extending between the interior surface and the exterior surface, the plurality of voids defining the plurality of rings and the plurality of beams; wherein each void of the plurality of voids extends circumferentially about the elongate cylindrical shaft between a first beam of the plurality of beams and a second beam of the plurality of beams; wherein each void comprises a first widened portion proximate the first beam and a second widened portion proximate the second beam - View Dependent Claims (15, 16, 17, 18)
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Specification