公开(公告)号：US20210106446A1

公开(公告)日：2021-04-15

申请号：US17247605

申请日：2020-12-17

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：US10716691B2

公开(公告)日：2020-07-21

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.