The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2004
Filed:
Dec. 16, 1999
Brian L. Bates, Bloomington, IN (US);
Dale T. Berry, West Lafayette, IN (US);
Neal E. Fearnot, West Lafayette, IN (US);
Coy M. Herald, West Lafayette, IN (US);
Palle M. Hansen, Bjaeverskov, DK;
Jesper Thyregod, Roskilde, DK;
Other;
Abstract
A stent ( ) formed from cannula and having flexible segments ( ) and high hoop strength segments ( ) alternating therealong. Axial tie bars ( ) interconnect the segments; minimal length reduction would occur upon expansion. In the high hoop strength segment ( ), struts ( ) are initially parallel in the unexpanded strut condition, while in the flexible segment ( ), struts ( ) extend from a respective bight ( ) to converge at distal ends when unexpanded. In one embodiment, certain adjacent struts ( ) of the hoop segment are spaced apart by a large gap ( ) while others are spaced apart by a small gap ( ). In another embodiment all the struts ( ) of the hoop segment are spaced apart uniformly from each other (or from an axial tie bar) by a small gap ( ), resulting in minimizing the occurrence of fatigue of high-stress sites upon expansion/contraction cycles from continuous pulsatile events.