Patent ID: 9089448
Filing Date: 2015-07-28
Classification: A61F

Abstract:
1. A method of deploying an expandable stent within a body vessel, the method comprising: providing self-expandable stent and delivery system, wherein said self-expandable stent is mounted about a distal portion of an elongated core member of said delivery system, and wherein the core member has a longitudinal core member axis and a distal portion along the longitudinal core member axis; said providing of the self-expandable stent further includes providing the self-expandable stent having a compressed state and an expanded state, the self-expandable stent having a longitudinal stent axis substantially coaxial with the longitudinal core member axis, a stent body having a proximal section and a distal section and a first strut member defining a threaded strut member portion and extending away from the self-expandable stent in a direction generally parallel to the stent axis and offset radially outwardly from the stent axis and that extends longitudinally and away from and beyond either the proximal section or the distal section of the stent body; providing the distal portion of the elongated core member with a diameter such that the distal portion is radially spaced away from a stent body portion when the self-expandable stent is in its compressed state; threadedly engaging at least a portion of said threaded strut member portion with at least a portion of a threaded core member portion disposed at the distal portion of said elongated core member, said providing of the delivery system further includes disposing a deployment catheter about said self-expandable stent to compress said at least a portion of said threaded strut member portion into engagement with said at least a portion of said threaded core member portion, the deployment catheter having a lumen; coaxially placing the deployment catheter about the elongated core member such that the deployment catheter compresses the self-expandable stent to its compressed state, causing the first threaded strut member portion but not the stent body portion of the self-expandable stent to interlock onto the first threaded core member portion, while the core member distal portion remains spaced away from and does not interlock with the stent body portion; inserting said self-expandable stent and at least a portion of said delivery system into a body vessel; positioning said self-expandable stent adjacent to a defect of the body vessel; moving said deployment catheter proximally with respect to said elongated core member, allowing said self-expandable stent to begin expanding within the body vessel; and further moving said deployment catheter proximally with respect to said elongated core member, allowing said self-expandable stent to fully deploy.