Methods and systems for establishing retrograde carotid arterial blood flow

US9833555B2 · kind B2 · utility

Assignee

• Silk Road Medical, Inc. · US

Inventors

• Enrique Criado · Sunnyvale, US
• Tony M. Chou · Berkeley Heights, US
• Michi E. Garrison · Sunnyvale, US
• Gregory M. Hyde · Sunnyvale, US
• Alan Schaer · San Jose, US
• Richard Renati · Los Gatos, US

Key dates

• Filing date: Sep 2, 2014
• Grant date: Dec 5, 2017
• Expiry date: Dec 11, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/3334
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.