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VASCULAR AND BODILY DUCT TREATMENT DEVICE AND METHODS
专利权人:
发明人:
RYAN M GRANDFIELD,SCOTT D WILSON,JOHN H MILLER,EMILY VU,KIRK L PEDERSEN,CRAIG L BONSIGNORE,ELLIOT H SANDERS
申请号:
IN1222/CHENP/2012
公开号:
IN2012CN01222A
申请日:
2012.02.08
申请国别(地区):
IN
年份:
2012
代理人:
摘要:
ABSTRACT A device including a self-expandable member having a proximal end portion and a main body portion. The self-expandable member is movable from a first delivery position to a second placement position, in the first delivery position the expandable member being in an unexpanded position and having a nominal first diameter and in the second position the expandable member being in a radially expanded position and having a second nominal diameter greater than the first nominal diameter for deployment within a vessel or duct of a patient. The expandable member includes a plurality of cell structures with the cell structures in the main body portion extending circumferentially around a longitudinal axis of the expandable member and the cell structures in the proximal end portion extending less than circumferentially around the longitudinal axis of the expandable member. In one implementation the cell structures have dimensional and material characteristics that result in about a -1.5N to a about a -3.5N overall reduction in radial force along the length of the expandable member per millimeter of expansion during about an initial 0.50mm diametric range of expansion from the nominal diameter and that results in about a -0.1 ON to about a -0.50N overall reduction in radial force along the length of the expandable member per millimeter of expansion during subsequent diametric ranges of expansion.
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