Hydrodynamic vortex aspiration catheter

US10960178B2 · kind B2 · utility

Assignee

• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Luis Emilio Savastano · Ypsilanti, US
• Jeffrey Stephen Plott · Ferguson Road, US
• Yang Liu · Ossining, US
• Yihao Zheng · Ann Arbor, US
• Albert Shih · Columbus, US

Key dates

• Filing date: Oct 10, 2018
• Grant date: Mar 30, 2021
• Expiry date: May 3, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2206/20
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An actuated telescoping system for navigation within a vascular lumen and thrombectomy of a thrombus. The system includes a tubular catheter member having an open distal end defining a catheter lumen, a vacuum source, a rotational drive system, a flexible shaft having a channel coupled to the rotational drive system for rotational movement in response thereto, and an optional guidewire selectively inserted at least partially within the flexible shaft. The flexible shaft is at least partially disposed within the tubular catheter member configured for uncoupled rotational and translational motion therein and to optionally define a corkscrew motion in response to rotational driving force by the drive system that results in formation of hydrodynamic vortices within the catheter lumen. The telescoping system can be capable of reversibly transitioning between navigation and thrombectomy modes by differentially disposing and actuating the components and enable faster, more efficient and simpler removal of thromboembolic material.