公开(公告)号：US20240238555A1

公开(公告)日：2024-07-18

申请号：US18412217

申请日：2024-01-12

Applicant: Teleflex Life Sciences LLC

Inventor： Christopher E. Buller ,  Joshua Brenizer ,  Dean Peterson ,  Allison Margulies

IPC: A61M25/00 ,  A61M25/06

CPC classification number: A61M25/0023 ,  A61M25/0012 ,  A61M25/005 ,  A61M25/0662 ,  A61M2025/0024

Abstract: A guide extension catheter positionable within a guide catheter and configured to receive an interventional device for insertion into vasculature is disclosed. The guide extension catheter can comprise a push member, a first reinforcement member in contact with the push member, and a radially-collapsible, tubular membrane in contact with the push member and the first reinforcement member. The tubular membrane can be positioned distal to the first reinforcement member and radially collapsed or wrapped about the push member prior to receiving the interventional device. The push member can provide column strength sufficient to prevent longitudinal collapse of the tubular membrane during use. The guide extension catheter can provide a low friction, large diameter (for a given compatible guide catheter size) pathway proximal to, and optionally through, a target lesion in the vasculature, thereby reducing micro and macro vasculature injury attributable to delivery of interventional devices. Related systems and methods are also disclosed.

公开(公告)号：US20250049426A1

公开(公告)日：2025-02-13

申请号：US18797479

申请日：2024-08-07

Applicant: Teleflex Life Sciences LLC

Inventor： Joshua Brenizer ,  Darren Prom ,  Christopher E. Buller ,  Nicholas Mark Donnay

IPC: A61B17/00 ,  A61M25/09

Abstract: A vascular closure device is configured to seal a puncture in an artery or vein. The vascular closure device includes a deployment assembly having a proximal end and a distal end opposite the proximal end, a suture carried by the deployment assembly, and a footplate carried by the deployment assembly and coupled to the suture. The footplate is configured to exit the distal end of the deployment assembly for deployment in the puncture. The vascular closure device includes a retraction assembly coupled to the footplate, the retraction assembly configured to, after deployment of the footplate, retract the footplate in a proximal direction.

公开(公告)号：US20250049425A1

公开(公告)日：2025-02-13

申请号：US18797456

申请日：2024-08-07

Applicant: Teleflex Life Sciences LLC

Inventor： Joshua Brenizer ,  Darren Prom ,  Christopher E. Buller ,  Nicholas Mark Donnay

IPC: A61B17/00

Abstract: A vascular closure device is configured to seal a puncture in an artery or vein. The vascular closure device includes a deployment assembly having a proximal end and a distal end opposite the proximal end, a suture carried by the deployment assembly, and a sealing plug carried by the deployment assembly and coupled to the suture. The sealing plug is configured to exit the distal end of the deployment assembly for deployment in the puncture. The vascular closure device includes a retraction element coupled to the sealing plug, the retraction element configured to, after deployment of the sealing plug, retract the sealing plug in a proximal direction.

公开(公告)号：US20240189547A1

公开(公告)日：2024-06-13

申请号：US18581812

申请日：2024-02-20

Applicant: Teleflex Life Sciences LLC

Inventor： Joshua Brenizer ,  Dean Peterson ,  Mark Wendle

IPC: A61M25/01 ,  A61M25/00 ,  A61M25/06

CPC classification number: A61M25/0113 ,  A61M25/0023 ,  A61M25/0053 ,  A61M25/0662 ,  A61M2025/0004 ,  A61M25/0009 ,  A61M25/0012

Abstract: A guide extension catheter can comprise an elongate tube member, a push member, and a concave track. The elongate tube member can define a lumen and three distinct portions of different diameter. A distal portion can define a first diameter, a proximal portion can define a second diameter which is larger than the first diameter but smaller than a lumen of a guide catheter with which the guide extension catheter is used, and a tapered portion, positioned between the distal portion and the proximal portion, can have a variable diameter. The push member can be eccentrically coupled relative to the tube member and extends proximally therefrom for slidably positioning the tube member within and partially beyond a distal end of the guide catheter. The concave track forms a transition between the tube member and the push member, and defines a partially cylindrical opening leading into the tube member.