Vascular stent
First Claim
Patent Images
1. A vascular stent having a longitudinal axis comprising:
- wire bent into a waveform pattern and having a middle portion spirally wrapped into a hollow cylindrical shape;
said middle portion being made up of successively converted substantially straight wire segments of alternating short and long lengths serially connected by bent wire segments; and
wherein the longer length of said substantially straight wire segments of alternating short and long lengths is substantially parallel to said longitudinal axis when the stent is in a radially compressed state.
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Accused Products
Abstract
A vascular stent includes at least one filament formed into a wave-like pattern, the filament being wound into a substantially spiral shape; and a device for connecting at least one end of the filament to slide on a another portion of the filament so as to form a hoop at each end of the spiral shape.
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Citations
20 Claims
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1. A vascular stent having a longitudinal axis comprising:
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wire bent into a waveform pattern and having a middle portion spirally wrapped into a hollow cylindrical shape; said middle portion being made up of successively converted substantially straight wire segments of alternating short and long lengths serially connected by bent wire segments; and wherein the longer length of said substantially straight wire segments of alternating short and long lengths is substantially parallel to said longitudinal axis when the stent is in a radially compressed state.
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2. A vascular stent having a longitudinal axis comprising:
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wire bent into a waveform pattern and having a portion spirally wrapped into a hollow cylindrical shape; said waveform pattern including a plurality of substantially straight wire segments serially connected by bent wire segments, successively connected said straight wire segments alternating between short and long lengths; and a plurality of said straight wire segments being substantially parallel to said longitudinal axis when the stent is in a radially compressed state. - View Dependent Claims (3, 4)
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5. A vascular stent having a longitudinal axis comprising:
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wire bent into a waveform pattern and having a portion spirally wrapped into a hollow cylindrical shape; and successively connected said waveform pattern including a plurality of substantially straight wire segments serially connected by bent wire segments, said successively connected said straight wire segments alternate between long and short lengths. - View Dependent Claims (6, 7)
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8. A vascular stent comprising:
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a longitudinal axis; a filament formed into a wave-like pattern having a middle portion and a first end portion, said middle portion being wrapped into a radially expandable shape around said longitudinal axis and having a longitudinal centerline, said middle portion also including a plurality of substantially straight wire segments serially connected by bent wire segments, successively connected said straight wire segments alternating between short and long lengths, said first end portion extending from said middle portion and having an amplitude smaller than any amplitude in said middle portion and a longitudinal centerline inclined to said longitudinal centerline of said middle portion; and a hoop formed around said longitudinal axis and from said first end portion. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification