A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/82 (2006.01) A61F 2/84 (2006.01) A61F 2/90 (2006.01)
Patent
CA 2561119
An intraluminal medical device having nested interlocking axially adjacent segments that remain interlocked during delivery to an intended treatment site. The medical device is preferably a stent in which the nested interlocked axially adjacent segments provide increased control and stability of the stent during delivery and increased vessel support when full deployment is effected. The stent may be a self- expanding stent or a balloon expandable stent. In either case, a series of repeating cells comprise a segment. Each cell comprises a protrusion and a radially and circumferentially adjacent receptacle. The protrusion from at least one cell in a segment interlocks with the receptacle of an axially adjacent segment to form the stent. The protrusions remain coupled with a corresponding receptacle during delivery of the stent to the intended treatment site, and can remain engaged thereafter, or can disengage from the corresponding receptacle after full deployment of the stent is effected. An L/D ratio of the expanded length of the stent segment relative to the expanded diameter of the stent is preferably greater than one to enhance stent delivery and maximize fatigue durability of the structure. Radiaopaque markers may be inserted within, integral therewith, or coated thereon ends of the protrusions.
Nitinol Development Corporation
Sim & Mcburney
LandOfFree
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