Patent ID: 8956381
Filing Date: 2015-02-17
Classification: A61B

Abstract:
1. A delivery system for delivering an occlusive element to an implantation site in the vasculature system, comprising: an elongate sheath having a distal end and a proximal end and lumen extending between the distal and proximal ends; a distal blocking member located at the distal end of the elongate sheath, the distal blocking member including an aperture therein; an elongate releasing member disposed within the lumen of the elongate sheath, the elongate releasing member including a proximal end and a distal end, the distal end of the elongate releasing member terminating in first and second retaining members formed from a common filament or wire and having pre-formed configuration wherein the first and second retaining members include respective distal ends that overlap in the closed configuration; an occlusive element including a securing member positioned at a proximal end thereof and releasably secured to the first and second retaining members when the first and second retaining members are in the overlapping, closed configuration; wherein the securing member of the occlusive element passes through the aperture of the distal blocking member, and the first and second retaining members are released from the securing member by pulling on the elongate releasing member in a proximal direction, wherein the aperture of the distal blocking member is sized to prevent the releasing member from deploying out of the distal end of the elongate sheath and to prevent the occlusive element from moving proximally into the elongate sheath, and wherein the first and second retaining members comprise an elastic material configured to return to the overlapping, closed configuration after being released from the securing member.