Patent ID: 6699279
Filing Date: 2004-03-02
Classification: A61F

Abstract:
An expandable frame and wire for deployment in a body lumen, comprising:a plurality of flexible torsion spring joints linked by spacing arms with said torsion spring joints and spacing arms when in an expanded state defining an open structure surrounding and spaced from a longitudinal axis; at least alternate ones of said flexible torsion spring joints movable radially inwardly toward said longitudinal axis to define a structure with a inner plurality of said flexible torsion spring joints in close proximity to said axis and with a remaining plurality of said flexible torsion spring joints disposed radially spaced outwardly from said inner plurality and with said inner and outer plurality connected by said spacing arms extending substantial radially from said axis wherein said expandable frame is in a compressed configuration as a result of moving alternating flexible torsion spring joints to a center of the frame, and comprises at least one wire threaded through a flexible torsion spring joint in said center of the frame.