公开(公告)号：US11510794B2

公开(公告)日：2022-11-29

申请号：US16935044

申请日：2020-07-21

Applicant: Edwards Lifesciences Corporation

Inventor： Tomer Saar ,  Gregory Rinberg

IPC: A61F2/95 ,  A61F2/24

Abstract: Disclosed herein is a method of crimping a prosthetic heart valve using a compact crimping mechanism. The crimping mechanism includes a plurality of jaws configured for coordinated inward movement toward a crimping axis to reduce the size of a crimping iris around a stented valve. A rotating cam wheel acts on the jaws and displaces them inward. A number of Cartesian guide elements cooperate with the jaws to distribute forces within the crimping mechanism. The guide elements are located between the crimping jaws and an outer housing and are constrained by the outer housing for movement along lines that are tangential to a circle centered on the crimping axis. The guide elements engage at least some of the crimping jaws while the rest are in meshing engagement so as to move in synch. An actuation mechanism includes a lead screw, carriage assembly and a linkage to rotate the cam wheel with significant torque.

公开(公告)号：US20250049568A1

公开(公告)日：2025-02-13

申请号：US18929335

申请日：2024-10-28

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： Hanoch Cohen-Tzemach ,  Tamir S. Levi ,  Yair A. Neumann ,  Tomer Saar ,  Gregory Rinberg

IPC: A61F2/24

Abstract: A radially expandable prosthetic valve can include an annular frame, at least one expansion mechanism, and a biasing member. The annular frame can be radially collapsible and expandable between a radially compressed configuration and a radially expanded configuration. The at least one expansion mechanism can include a first member attached to the frame at a first location and a second member attached to the frame at a second location axially spaced from the first location. Movement of the first member relative to the second member in a first direction can cause the frame to radially expand, and movement of the first member relative to the second member in a second direction, opposite the first direction, causes the frame to radially compress. The biasing member can exert a biasing force against the first member in the first direction, to cause the first member to move relative to the second member, which can further expand the frame as the native annulus enlarges over time.

公开(公告)号：US20230111584A1

公开(公告)日：2023-04-13

申请号：US18078823

申请日：2022-12-09

Applicant: Edwards Lifesciences Corporation

Inventor： Tomer Saar ,  Gregory Rinberg

IPC: A61F2/95

Abstract: Disclosed herein is a method of crimping a prosthetic heart valve using a compact crimping mechanism. The crimping mechanism includes a plurality of jaws configured for coordinated inward movement toward a crimping axis to reduce the size of a crimping iris around a stented valve. A rotating cam wheel acts on the jaws and displaces them inward. An actuation mechanism includes a lead screw, carriage assembly and a linkage to rotate the cam wheel with significant torque.

公开(公告)号：US11523923B2

公开(公告)日：2022-12-13

申请号：US17247605

申请日：2020-12-17

Applicant: Edwards Lifesciences Corporation

Inventor： Tomer Saar ,  Gregory Rinberg

IPC: A61F2/95 ,  A61F2/24

Abstract: Disclosed herein is a method of crimping a prosthetic heart valve using a compact crimping mechanism. The crimping mechanism includes a plurality of jaws configured for coordinated inward movement toward a crimping axis to reduce the size of a crimping iris around a stented valve. A rotating cam wheel acts on the jaws and displaces them inward. An actuation mechanism includes a lead screw, carriage assembly and a linkage to rotate the cam wheel with significant torque.

公开(公告)号：US20210282922A1

公开(公告)日：2021-09-16

申请号：US17337711

申请日：2021-06-03

Applicant: Edwards Lifesciences Corporation

Inventor： Hanoch Cohen-Tzemach ,  Tamir S. Levi ,  Yair A. Neumann ,  Tomer Saar ,  Gregory Rinberg

IPC: A61F2/24

Abstract: A radially expandable prosthetic valve can comprise an annular frame, at least one expansion mechanism and a cord. The annular frame can be radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration. The expansion mechanism can comprise a first member attached to the frame at a first location and a second member attached to the frame at a second location axially spaced from the first location. The cord can extend at least partially along the expansion mechanism in a first direction, be reeved around a portion of the second member, and extend at least partially along the expansion mechanism in a second direction opposite the first direction. Applying a proximally directed force to a first portion of the cord can cause the second member to move relative to the first member, which can cause the frame to foreshorten axially and expand radially.

公开(公告)号：US20200345526A1

公开(公告)日：2020-11-05

申请号：US16935044

申请日：2020-07-21

Applicant: Edwards Lifesciences Corporation

Inventor： Tomer Saar ,  Gregory Rinberg

IPC: A61F2/95

Abstract: Disclosed herein is a method of crimping a prosthetic heart valve using a compact crimping mechanism. The crimping mechanism includes a plurality of jaws configured for coordinated inward movement toward a crimping axis to reduce the size of a crimping iris around a stented valve. A rotating cam wheel acts on the jaws and displaces them inward. A number of Cartesian guide elements cooperate with the jaws to distribute forces within the crimping mechanism. The guide elements are located between the crimping jaws and an outer housing and are constrained by the outer housing for movement along lines that are tangential to a circle centered on the crimping axis. The guide elements engage at least some of the crimping jaws while the rest are in meshing engagement so as to move in synch. An actuation mechanism includes a lead screw, carriage assembly and a linkage to rotate the cam wheel with significant torque.

公开(公告)号：US20170367858A1

公开(公告)日：2017-12-28

申请号：US15630711

申请日：2017-06-22

Applicant: Edwards Lifesciences Corporation

Inventor： Tomer Saar ,  Gregory Rinberg

IPC: A61F2/95 ,  A61F2/24

Abstract: A compact crimping mechanism well-suited for use with devices such as stented prosthetic heart valves. The crimping mechanism includes a plurality of jaws configured for coordinated inward movement toward a crimping axis to reduce the size of a crimping iris around a stented valve. A rotating cam wheel acts on the jaws and displaces them inward. A number of Cartesian guide elements cooperate with the jaws to distribute forces within the crimping mechanism. The guide elements are located between the crimping jaws and an outer housing and are constrained by the outer housing for movement along lines that are tangential to a circle centered on the crimping axis. The guide elements engage at least some of the crimping jaws while the rest are in meshing engagement so as to move in synch. An actuation mechanism includes a lead screw, carriage assembly and a linkage to rotate the cam wheel with significant torque.

公开(公告)号：US12268598B2

公开(公告)日：2025-04-08

申请号：US17337711

申请日：2021-06-03

Applicant: Edwards Lifesciences Corporation

Inventor： Hanoch Cohen-Tzemach ,  Tamir S. Levi ,  Yair A. Neumann ,  Tomer Saar ,  Gregory Rinberg

IPC: A61F2/24

Abstract: A radially expandable prosthetic valve can comprise an annular frame, at least one expansion mechanism and a cord. The annular frame can be radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration. The expansion mechanism can comprise a first member attached to the frame at a first location and a second member attached to the frame at a second location axially spaced from the first location. The cord can extend at least partially along the expansion mechanism in a first direction, be reeved around a portion of the second member, and extend at least partially along the expansion mechanism in a second direction opposite the first direction. Applying a proximally directed force to a first portion of the cord can cause the second member to move relative to the first member, which can cause the frame to foreshorten axially and expand radially.

公开(公告)号：US20240225867A1

公开(公告)日：2024-07-11

申请号：US18617784

申请日：2024-03-27

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： Tomer Saar ,  Gregory Rinberg

IPC: A61F2/95 ,  A61F2/24

CPC classification number: A61F2/95 ,  A61F2/9524 ,  A61F2/2412 ,  A61F2/2427 ,  A61F2/2433 ,  A61F2/9522

Abstract: Disclosed herein is a crimping device for crimping a prosthetic heart valve. The crimping device includes a plurality of crimping jaws circumferentially arranged around a crimping orifice having a central crimping axis, each crimping jaw having an inner crimping wedge. The crimping device also includes a rotating cam wheel adapted to act on the crimping jaws, a stationary outer housing containing the crimping jaws and the cam wheel, and a plurality of guide elements. Each guide element is constrained by fixed grooves in the outer housing for translating the crimping jaws inwardly toward the crimping axis, thereby reducing a size of the crimping orifice. Molded halves are provided for sandwiching the rotating cam wheel, the crimping jaws, and the guide elements.

公开(公告)号：US11951025B2

公开(公告)日：2024-04-09

申请号：US18078823

申请日：2022-12-09

Applicant: Edwards Lifesciences Corporation

Inventor： Tomer Saar ,  Gregory Rinberg

IPC: A61F2/95 ,  A61F2/24

CPC classification number: A61F2/95 ,  A61F2/9524 ,  A61F2/2412 ,  A61F2/2427 ,  A61F2/2433 ,  A61F2/9522

Abstract: Disclosed herein is a method of crimping a prosthetic heart valve using a compact crimping mechanism. The crimping mechanism includes a plurality of jaws configured for coordinated inward movement toward a crimping axis to reduce the size of a crimping iris around a stented valve. A rotating cam wheel acts on the jaws and displaces them inward. An actuation mechanism includes a lead screw, carriage assembly and a linkage to rotate the cam wheel with significant torque.