Small vessel stent designs
OwnerNicholas DeBeer, Frank Beckinginventors
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Abstract
Medical device and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures.
Claims33
A self-expanding stent comprising a plurality of struts, each strut having two ends, each strut end connected to a circumferentially adjacent strut end, the stent having an expanded shape and a compressed shape, wherein in the compressed shape, the struts define a plurality of teardrop-shaped openings along substantially a whole length of the struts.
A self-expanding stent comprising a plurality of struts, each strut having two ends, each strut end connected to a circumferentially adjacent strut end, the stent having an expanded shape and a compressed shape, wherein in the compressed shape, the struts define a plurality of teardrop-shaped openings only.
A self-expanding stent comprising a plurality of struts, each strut having two ends, each strut end connected to a circumferentially adjacent strut end, the stent having an expanded shape and a compressed shape, wherein in the compressed shape, the struts define a plurality of close-packed teardrop shaped forms.
A self-expanding stent comprising a plurality of struts, a medial portion of the struts having an S-curve shape as originally cut from a tube.
A method of making a self-expanding stent comprising:
- providing a tube of elastic or superelastic material;
- and
- cutting the tube in a pattern comprising a plurality of struts, a medial portion of the struts having an S-curve shape.
The stent of claim, wherein terminal ends of the cells are rounded-off so as to be atraumatic.
A method of designing a self-expanding stent, the method comprising:
- providing a precursor stent strut design in a desired compressed configuration;
- expanding the precursor stent strut design to a desired expanded configuration;
- and
- setting a stent strut cutting pattern for the self-expanding stent corresponding to the expanded configuration shape of the precursor stent design.
A self-expanding stent made of a metal suitable for implantation in a mammalian body at stress levels of at least about 1.5%.
A self-expanding stent comprising:
- crossing wires connected at junctions to form a plurality of strut sections,
- wherein uniform radiused sections are provided between adjacent struts.
A self-expanding stent comprising a plurality of struts, each strut having two ends, each strut end connected to a circumferentially adjacent strut end, the stent having an expanded shape and a compressed shape, the improvement consisting of:
- the struts defining a plurality of teardrop shapes in a compressed configuration.
Dependencies are inferred from the claim text.