公开(公告)号：US12115089B2

公开(公告)日：2024-10-15

申请号：US17909810

申请日：2021-03-22

Applicant: MEDTRONIC, INC.

Inventor： Brian Castelli

IPC: A61F2/95 ,  A61F2/24

CPC classification number: A61F2/9524 ,  A61F2/2433

Abstract: A crimper includes atop iris shell defining atop iris channel. The crimper also includes abase iris shell coupled to the top iris shell at a pivot connection, the base iris shell defining a base iris channel. The top iris shell is configured to rotate about the pivot connection relative to the base shell from an open state to a closed state. When in the open state, the base iris channel is exposed for loading the expandable medical device. When in the closed state, the top iris channel and the base iris channel define a crimper chamber. The crimper also includes a handle configured to operate the clamshell crimper. The actuation of the handle decreases a volume of the crimper chamber to transition the expandable medical device from the uncompressed state to the compressed state.

公开(公告)号：US11844713B2

公开(公告)日：2023-12-19

申请号：US17394025

申请日：2021-08-04

Applicant: Medtronic, Inc.

Inventor： Brian Castelli ,  Nathanael Glucklich

IPC: A61F2/95

CPC classification number: A61F2/9524

Abstract: A crimper for altering an implantable medical device from an uncompressed state to a compressed state. The crimper includes a plurality of crimper elements that define a crimper channel, each of the crimper elements including a non-planar surface that forms a portion of the crimper channel. Each non-planar surface is configured to apply non-uniform radial compression along a length of the implantable medical device during operation of the crimper when altering the implantable medical device from the uncompressed state to the compressed state. The crimper also includes handle configured to operate the crimper. Actuation of the handle decreases a volume of the crimper chamber to transition the implantable medical device from the uncompressed state to the compressed state.

公开(公告)号：US11446470B2

公开(公告)日：2022-09-20

申请号：US16907466

申请日：2020-06-22

Applicant: MEDTRONIC, INC.

Inventor： Brian Castelli ,  Ashley Spink ,  William Berthiaume ,  William Chang ,  Victoria Ung ,  James Mitchell

IPC: A61M25/01 ,  A61M25/00 ,  A61M25/09

Abstract: A catheter includes a handle with torqueing and steering mechanisms. The torqueing mechanism includes a rotatable nosecone and a bearing coupled to the nosecone to be rotatable therewith. The bearing is concentrically disposed over a shaft of the catheter. The steering mechanism includes a rack coupled to the bearing to be slideable therewith and a pull wire having a proximal end attached to the bearing and a distal end attached to a distal portion of the shaft. Rotation of the nosecone causes an entire length of the shaft to rotate and axial movement of the rack tensions the pull wire to bend the distal portion of the shaft. A valve relief component is slidingly disposed over the shaft and is configured to dock onto the handle when not in use.

公开(公告)号：US20230139876A1

公开(公告)日：2023-05-04

申请号：US17957943

申请日：2022-09-30

Applicant: Medtronic, Inc.

Inventor： Jason Bowe ,  Matthew Genovese ,  Victoria Ung ,  Jeffrey Sandstrom ,  Matthew Ziebol ,  Steven Claessens ,  Radhika Bhargav ,  Alkindi Kibria ,  Salvador O. Avelar ,  Brian Castelli

IPC: A61F2/24

Abstract: An assembly including a transcatheter valve prosthesis and a leaflet folding accessory configured for use when compressing the transcatheter valve prosthesis into the crimped configuration. The transcatheter valve prosthesis includes a frame and a prosthetic valve component including at least one leaflet disposed within and secured to the frame. The leaflet folding accessory includes a plurality of guide fingers. A leaflet contact portion of each guide finger is configured to be disposed radially within the frame and contact an inner surface of a leaflet of the at least one leaflet. During crimping of the transcatheter valve prosthesis, the plurality of guide fingers remain disposed radially within the frame such that the at least one leaflet preferentially folds around the plurality of guide fingers.