公开(公告)号：US20210290386A1

公开(公告)日：2021-09-23

申请号：US17338535

申请日：2021-06-03

Applicant: Edwards Lifesciences Corporation

Inventor： Asher L. Metchik ,  Thanh V. Nguyen ,  Raz Biran ,  Arvin T. Chang ,  Tarannum Ishaq Gutierrez ,  Jeff Lindstrom

IPC: A61F2/24

Abstract: A loader and method for loading a transcatheter heart valve into a delivery sheath or catheter is described that is also configured to facilitate retrieval of the heart valve back through the delivery sheath while protecting the delivery sheath from damage. Another loader provides for easier crimping and loading of a THV into a delivery sheath or catheter from a storage jar or container. A method for crimping a THV facilitates easier end user preparation of the valve for implantation and reduces the likelihood of tissue deformation in the valve during storage. These devices and methods for deploying THVs simplify the valve replacement procedure.

公开(公告)号：US12295842B2

公开(公告)日：2025-05-13

申请号：US18535242

申请日：2023-12-11

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： Asher L. Metchik ,  Thanh V. Nguyen ,  Raz Biran ,  Arvin T. Chang ,  Tarannum Ishaq Gutierrez ,  Jeff Lindstrom

IPC: A61F2/24 ,  A61F2/00 ,  A61F2/95

Abstract: A method for retrieving a previously inserted prosthetic valve is disclosed. In one example, a loader assembly is inserted through a hub of a delivery sheath device. The delivery sheath device includes an expandable sheath that extends into a blood vessel of a patient. The loader assembly is advanced in a distal direction until a distal section of the loader assembly extends into the expandable sheath which is attached to a distal end of the hub. The distal section has a larger inner diameter than a middle tube section of the loader assembly. A delivery catheter is retracted to move a prosthetic valve attached thereto in a proximal direction until the prosthetic valve is received within the distal section. The loader assembly and the delivery catheter are removed from a proximal end of the hub while the prosthetic valve is retained within the distal section.

公开(公告)号：US20170049567A1

公开(公告)日：2017-02-23

申请号：US15238605

申请日：2016-08-16

Applicant: Edwards Lifesciences Corporation

Inventor： Asher L. Metchik ,  Thanh V. Nguyen ,  Raz Biran ,  Arvin T. Chang ,  Taranum Nagpurwala ,  Jeff Lindstrom

IPC: A61F2/24 ,  B21D39/04 ,  A61F2/00

CPC classification number: A61F2/2433 ,  A61F2/0095 ,  A61F2/2436 ,  A61F2002/9522 ,  A61F2250/0039

Abstract: A loader and method for loading a transcatheter heart valve into a delivery sheath or catheter is described that is also configured to facilitate retrieval of the heart valve back through the delivery sheath while protecting the delivery sheath from damage. Another loader provides for easier crimping and loading of a THV into a delivery sheath or catheter from a storage jar or container. A method for crimping a THV facilitates easier end user preparation of the valve for implantation and reduces the likelihood of tissue deformation in the valve during storage. These devices and methods for deploying THVs simplify the valve replacement procedure.

Abstract translation: 描述了用于将经导管心脏瓣膜装载到输送鞘或导管中的装载器和方法，其还构造成便于通过输送护套回流心脏瓣膜，同时保护输送鞘免受损伤。 另一个装载机可以方便地从储存罐或容器将THV卷曲和装载到输送鞘或导管中。 用于压接THV的方法便于终端用户准备用于植入的阀，并且减少在储存期间阀组织变形的可能性。 这些用于部署THV的设备和方法简化了阀门更换过程。

公开(公告)号：US11957579B2

公开(公告)日：2024-04-16

申请号：US17338535

申请日：2021-06-03

Applicant: Edwards Lifesciences Corporation

Inventor： Asher L. Metchik ,  Thanh V. Nguyen ,  Raz Biran ,  Arvin T. Chang ,  Tarannum Ishaq Gutierrez ,  Jeff Lindstrom

IPC: A61F2/24 ,  A61F2/95 ,  A61F2/00

CPC classification number: A61F2/2433 ,  A61F2/0095 ,  A61F2/2436 ,  A61F2/9522 ,  A61F2250/0039

Abstract: A loader and method for loading a transcatheter heart valve into a delivery sheath or catheter is described that is also configured to facilitate retrieval of the heart valve back through the delivery sheath while protecting the delivery sheath from damage. Another loader provides for easier crimping and loading of a THV into a delivery sheath or catheter from a storage jar or container. A method for crimping a THV facilitates easier end user preparation of the valve for implantation and reduces the likelihood of tissue deformation in the valve during storage. These devices and methods for deploying THVs simplify the valve replacement procedure.

公开(公告)号：US20240099838A1

公开(公告)日：2024-03-28

申请号：US18535242

申请日：2023-12-11

Applicant: EDWARDS LIFESCIENCES CORPORATION

Inventor： Asher L. Metchik ,  Thanh V. Nguyen ,  Raz Biran ,  Arvin T. Chang ,  Tarannum Ishaq Gutierrez ,  Jeff Lindstrom

IPC: A61F2/24

CPC classification number: A61F2/2433 ,  A61F2/0095

Abstract: A method for retrieving a previously inserted prosthetic valve is disclosed. In one example, a loader assembly is inserted through a hub of a delivery sheath device. The delivery sheath device includes an expandable sheath that extends into a blood vessel of a patient. The loader assembly is advanced in a distal direction until a distal section of the loader assembly extends into the expandable sheath which is attached to a distal end of the hub. The distal section has a larger inner diameter than a middle tube section of the loader assembly. A delivery catheter is retracted to move a prosthetic valve attached thereto in a proximal direction until the prosthetic valve is received within the distal section. The loader assembly and the delivery catheter are removed from a proximal end of the hub while the prosthetic valve is retained within the distal section.

公开(公告)号：US11026788B2

公开(公告)日：2021-06-08

申请号：US15238605

申请日：2016-08-16

Applicant: Edwards Lifesciences Corporation

Inventor： Asher L. Metchik ,  Thanh V. Nguyen ,  Raz Biran ,  Arvin T. Chang ,  Tarannum Nagpurwala ,  Jeff Lindstrom

IPC: A61F2/24 ,  A61F2/00 ,  A61F2/95

Abstract: A loader and method for loading a transcatheter heart valve into a delivery sheath or catheter is described that is also configured to facilitate retrieval of the heart valve back through the delivery sheath while protecting the delivery sheath from damage. Another loader provides for easier crimping and loading of a THV into a delivery sheath or catheter from a storage jar or container. A method for crimping a THV facilitates easier end user preparation of the valve for implantation and reduces the likelihood of tissue deformation in the valve during storage. These devices and methods for deploying THVs simplify the valve replacement procedure.