Alex A. Peterson,Jason S. Diedering,Saravana B. Kumar
申请号：
US16558897
公开号：
US20200069423A1
申请日:
2019.09.03
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A device and method for predictably and controlling the collapsing of a collapsible and expandable stent for subsequent translation through a delivery sheath lumen to an anatomical target such as a heart valve or intravascular location for expansion and implantation. The loading device defines in inner lumen comprising a successively decreasing, from the proximal to the distal direction, inner diameter alternating between two sections of decreasing diameter and two sections of constant diameter until reaching the inner diameter of the delivery sheath. A fluid-filled reservoir is provided at the proximal end of the loading device that is configured to provide moisture or wetting for materials associated with or attached to the stent that require moisture retention. Thus, as the stent is being collapsed with the loading device, at least a portion of the stent may be immersed in the fluid reservoir to preserve the subject material.
