US 12,268,603 B2
Catheter delivery system for stent valve
Jacques Essinger, Wollerau (CH); Stephane Delaloye, Bülach (CH); Jean-Luc Hefti, Cheseaux-Noréaz (CH); and Luc Mantanus, Lausanne (CH)
Assigned to Symetis SA, Ecublens (CH)
Filed by Symetis SA, Ecublens (CH)
Filed on Sep. 14, 2023, as Appl. No. 18/368,524.
Application 18/368,524 is a continuation of application No. 16/670,117, filed on Oct. 31, 2019, granted, now 11,779,461.
Application 16/670,117 is a continuation of application No. 15/588,498, filed on May 5, 2017, abandoned.
Application 15/588,498 is a continuation of application No. 13/821,434, granted, now 9,675,485, issued on Jun. 13, 2017, previously published as PCT/EP2011/065620, filed on Sep. 9, 2011.
Claims priority of provisional application 61/431,333, filed on Jan. 10, 2011.
Claims priority of application No. 10176263 (EP), filed on Sep. 10, 2010.
Prior Publication US 2024/0000568 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/00 (2006.01); A61B 90/00 (2016.01); A61F 2/24 (2006.01); A61F 2/95 (2013.01)
CPC A61F 2/2436 (2013.01) [A61B 90/08 (2016.02); A61F 2/2418 (2013.01); A61B 2090/0811 (2016.02); A61F 2/9517 (2020.05); A61F 2250/0097 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A delivery catheter configured to deliver a stent, the delivery catheter comprising:
a distal end and a proximal end, the distal end including a stent attachment region adapted to receive a stent, the delivery catheter further comprising a handle at its proximal end and at least one sheath configured to at least partially circumferentially cover the stent to retain the stent in a collapsed configuration, the at least one sheath being coupled at a proximal end to an actuator located in or on the handle and configured to move the at least one sheath along the stent,
wherein the actuator comprises a manual rotary control associated with a helical threaded element that causes linear translation of the manual rotary control relative to the handle as the manual rotary control is turned,
wherein the threaded element is configured and adapted to present a first level of resistance to movement of the actuator relative to the handle when the distal end of the at least one sheath has reached a first defined position on the stent during proximal and/or distal movement of the at least one sheath along the stent, and to present a second level of resistance to movement of the actuator relative to the handle when the distal end of the at least one sheath has reached a second defined position on the stent during proximal and/or distal movement of the at least one sheath along the stent, wherein the first and second levels of resistance are different.