公开(公告)号：US11007061B2

公开(公告)日：2021-05-18

申请号：US16412224

申请日：2019-05-14

Applicant: Edwards Lifesciences Corporation

Inventor： Joseph Arthur Passman ,  Omar Fawzi Azanki ,  Kokou Anani Amefia

IPC: A61F2/24

Abstract: Devices and methods for treating patients with functional tricuspid regurgitation (TR) who are unsuitable for surgery include an interoperative, adjustable-size coapting element on a catheter which may be implanted within the left or right side of the heart and extends upward into the vasculature and out of the body. The radial diameter of the coapting element can be modulated in tandem with electrocardiographic imaging to reduce valve regurgitation. One system has an elongated catheter and an expandable coapting element mounted to a distal end with an auxetic structure connected to opposite end caps. A tensioning mechanism controlled from a proximal end of the catheter is configured to pull apart the two end caps and thus elongate and radially expand the auxetic structure. Other forms of the coapting element are disclosed, as well as a kink-resistant catheter sheath having a triangular cross-section.

公开(公告)号：US20190059876A1

公开(公告)日：2019-02-28

申请号：US16107718

申请日：2018-08-21

Applicant: Edwards Lifesciences Corporation

Inventor： Steven Eric Decker ,  Matthew Michael Becerra ,  Nancy Hoang Khuu ,  Timothy Allen Dalton ,  Sue-Lynn Wu ,  Mark Chau ,  Omar Fawzi Azanki ,  Robert C. Taft ,  Emil Karapetian ,  Praveen De Silva ,  Hien T. Nguyen

IPC: A61B17/04 ,  A61F2/24

Abstract: Devices and methods for securing a tissue anchor in tissue of a patient, in particular to ensure proper deployment of a cardiac tissue anchor by regulating the force or pressure of a deployment tool against the tissue. One way to ensure proper deployment force is to visualize the distal end of the tissue anchoring catheter from outside the body using a display for an imaging sensor, where the distal end of the catheter changes configuration when it is pressed against the tissue. Another method involves automatically regulating the pressure applied to the tissue prior to deployment of the tissue anchor, which may also be used in conjunction with visualization. Several safety locks to prevent deployment of the tissue anchor prior to establishment of the proper pressure are disclosed, which again may be used with visualization and/or an automated pressure regulator.