Bifurcated stent

Details Bifurcated stent Bifurcated stent

2011-06-14

2011-06-14

Isabella, David (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Bifurcated

C623S001150

Reexamination Certificate

active

07959668

ABSTRACT:
In at least one embodiment, a stent comprises a plurality of interconnected framework members defining a plurality of cells. A portion of the interconnected framework members comprise a side branch structure defining an inner side branch cell that is shaped differently than other cells of the stent. The side branch structure comprises a first serpentine ring extending around the inner side branch cell. The first serpentine ring comprises alternating inner turns and outer turns connected by straight struts. The inner turns are distributed around a reference circle centered upon a side branch center point. The side branch structure further comprises a second serpentine ring extending around the first serpentine ring. The second serpentine ring comprises alternating inner turns and outer turns connected by straight struts. The second serpentine ring has the same number of inner turns and outer turns as the first serpentine ring. The side branch structure further comprises a plurality of inner side branch connectors, each inner side branch connector spanning between the first serpentine ring and the second serpentine ring in a side branch radial direction.

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