| US 7,500,988 B1 | ||
| Stent for use in a stent graft | ||
| Frank Butaric, Pembroke Pines, Fla. (US); Bill K. Ng, Sunnyvale, Calif. (US); Marc Ramer, Weston, Fla. (US); Dieter Stoeckel, Los Altos, Calif. (US); Gregory Mast, Fremont, Calif. (US); Luis A. Davila, Pleasanton, Calif. (US); and Kenneth S. Solovay, Ft. Lauderdale, Fla. (US) | ||
| Assigned to Cordis Corporation, Miami Lakes, Fla. (US) | ||
| Filed on Nov. 16, 2000, as Appl. No. 9/714,093. | ||
| Int. Cl. A61F 2/06 (2006.01) | ||
| U.S. Cl. 623—1.16 [623/1.15] | 4 Claims |
| 1. A monolithic, hollow substantially cylindrical radially expandable stent having proximal and distal open ends and a longitudinal
axis extending therebetween, said stent for deployment within a human body vessel, said stent comprising:
a. a plurality of hoops comprising a plurality of interconnected struts forming a substantially diamond shape configuration,
said stent having a proximal end hoop and a distal end hoop, wherein said distal end hoop and said proximal end hoop are configured
to have greater radial and longitudinal strength than the hoops therebetween and said proximal hoop is flared;
b. a plurality of sinusoidal rings connecting adjacent hoops to one another, said sinusoidal rings being formed from a plurality
of alternating struts, the plurality of alternating struts being substantially shorter in length than the plurality of interconnected
struts of the plurality of hoops, each of the plurality of sinusoidal rings having more than twice the number of struts forming
the plurality of hoops and each of said plurality of sinusoidal rings having a periodic structure of less than one-half of
the periodic structure of said plurality of hoops, wherein the union of each of the plurality of sinusoidal rings and each
of the plurality of hoops is made at the apex of at least one diamond configuration of the plurality of hoops and the apex
of at least one intersection of the plurality of alternating struts of the sinusoidal rings; and
c. proximal and distal attachment devices for securing a graft member to the substantially cylindrical radially expandable
stent, the proximal attachment device being positioned distal of the proximal open end of the stent such that the proximal
end hoop of the stent is configured to be exposed to a body vessel, said proximal and distal attachment devices comprising
tabs formed from the joining of two struts and having at least two apertures therein, wherein the plurality of hoops, the
plurality of sinusoidal rings and the proximal and distal attachment devices form a monolithic structure.
|