US 11,938,283 B2
Bendable sheath and delivery system using bendable sheath
Mao Chen, Hangzhou (CN); Yuan Feng, Hangzhou (CN); Zhifei Zhang, Hangzhou (CN); Feng Guo, Hangzhou (CN); Quangang Gong, Hangzhou (CN); and Shiguang Wu, Hangzhou (CN)
Assigned to VENUS MEDTECH (HANGZHOU), INC., Hangzhou (CN)
Filed by VENUS MEDTECH (HANGZHOU), INC., Zhejiang (CN)
Filed on Sep. 2, 2020, as Appl. No. 17/010,415.
Application 17/010,415 is a continuation of application No. PCT/CN2019/070146, filed on Jan. 2, 2019.
Claims priority of application No. 201810003498.5 (CN), filed on Jan. 3, 2018; and application No. 201810242064.0 (CN), filed on Mar. 22, 2018.
Prior Publication US 2021/0008344 A1, Jan. 14, 2021
Int. Cl. A61M 25/01 (2006.01); A61F 2/24 (2006.01); A61M 25/00 (2006.01)
CPC A61M 25/0147 (2013.01) [A61F 2/243 (2013.01); A61M 25/0023 (2013.01); A61M 25/0136 (2013.01); A61M 2025/0024 (2013.01); A61M 2205/04 (2013.01); A61M 2210/125 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A bendable delivery system for an implantable valve, comprising:
a bendable sheath, comprising a tube and a pull wire, wherein the tube has a distal end and a proximal end, and the distal end of the tube is configured to be bent by the pull wire, and wherein one end of the pull wire extends towards the proximal end of the tube, a connection portion of the other end of the pull wire and the tube is located at or adjacent to the distal end of the tube, and at least one section of the pull wire is configured as a movable section which is movable outside of the tube; the tube comprises a first section at the distal end for accommodating an implantable instrument, and a connection section connected to the first section and extending towards the proximal end;
a sheath core arranged in the bendable sheath, and an operating handle connected to proximal ends of the bendable sheath and the sheath core; wherein a proximal end of the pull wire is connected with the operating handle;
wherein the sheath core comprises a core tube, and the core tube has a loading section at a distal end for placing the implantable instrument; before release, the first section of the bendable sheath is configured to surround the loading section; and
wherein a distal end of the movable section is configured to enter an inner cavity of the tube from an outer wall of the tube through a first through hole, and then pass out of the tube from the inner cavity through a second through hole, and thereafter being knotted with a portion of the movable section outside the tube.