Patent ID: 8636760
Filing Date: 2014-01-28
Classification: A61B,A61M

Abstract:
1. A method for delivering a self-expanding device within a vessel, the method comprising: introducing an assembly and a self-expanding device into a lumen of an elongate member, the assembly comprising an innermost delivery wire extending through a lumen of the device, the innermost delivery wire having a distal retaining member for receiving a first end of the device and a proximally positioned retaining member for engaging a second end of the device when the device is axially positioned against said proximally positioned retaining member; the innermost delivery wire having an expandable portion with a radially compressed state and a radially expanded state, wherein the expandable portion is radially constrained in the radially compressed state by the elongate member and the device as the device and the expandable portion remain within the elongate member; positioning an end of the elongate member proximate a weakened wall of a vessel; advancing at least a portion of the assembly out of the elongate member, so that the expandable portion forms a non-rectilinear shape when transitioning from the radially compressed state to the radially expanded state and as the device expands radially and engages the vessel wall; wherein the device foreshortens longitudinally as the device expands; and wherein the expandable portion foreshortens longitudinally, while releasing the device, at a slower rate than does the device.