公开(公告)号：US20240315843A1

公开(公告)日：2024-09-26

申请号：US18582940

申请日：2024-02-21

Applicant: Medtronic, Inc.

Inventor： Luke A. CLARKE ,  Constantin F. CIOBANU ,  Patricia MCAFEE ,  Fionnuala MORELLI ,  Timothy Desmond FARRELL ,  Colm CALLAGY ,  Chris MORAN

IPC: A61F2/24

CPC classification number: A61F2/2436

Abstract: A prosthetic valve delivery assembly includes a dilator including a first tapered region extending along a dilator axis. The first tapered region includes a tapered shape with a first diameter at a distal end and a second diameter at a first central end. The second diameter is greater than the first diameter. A central region includes the second diameter that is substantially constant along a central length of the central region. A second tapered region includes a tapered shape with the second diameter at the second central end and a third diameter at a third central end. The third diameter is less than the second diameter. A proximal shaft region extends from the third central end. The proximal shaft region includes the third diameter such that a difference between the second diameter and the third diameter is within a French gauge range from about 3 Fr to about 5 Fr.

公开(公告)号：US20250001139A1

公开(公告)日：2025-01-02

申请号：US18615140

申请日：2024-03-25

Applicant: Medtronic, Inc.

Inventor： Timothy Desmond FARRELL ,  Chris MORAN ,  Marc A. ANDERSON ,  Patricia MCAFEE ,  Luke A. CLARKE ,  Antonia TROTTA ,  Andrea Quero MARTIN ,  Tomas Patrick KITT ,  Ross L. WILCOX ,  Patrick GRIFFIN

IPC: A61M25/06 ,  A61M25/00

Abstract: An expandable introducer includes a hub having a distal end and a proximal end, and a sheath coupled to the hub and extending distally therefrom, the sheath defining a central lumen. The sheath is configured to radially expand from a radially unexpanded, folded state having a first diameter and to a radially expanded, unfolded state having a second diameter larger than the first diameter in response to a device passing through the central lumen. A wall of the sheath includes a thick wall region having a first wall thickness and a thin wall region having a second wall thickness smaller than the first wall thickness, wherein the thick wall region includes a coil embedded within the wall of the sheath.