Coupling system, applicator tool, attachment ring and method for connecting a conduit to biological tissue

US10772623B2 · kind B2 · utility

Assignee

• TC1 LLC · US

Inventors

• Carine Hoarau · Pleasant Hill, US
• Steven H. Reichenbach · Pleasanton, US
• J. Donald Hill · San Francisco, US
• George Chao-chih Hsu · Augusta, US
• Andrew Ross Miller · Oakland, US
• James Badia · Redwood City, US
• Nina Boiadjieva · Belmont, US
• Shuo-Hsiu Chang · Fremont, US
• Philip J. Haarstad · Eagan, US
• Olga M. Stanescu · San Jose, US
• Stephen K. Sundquist · Minnetonka, US

Key dates

• Filing date: Dec 21, 2017
• Grant date: Sep 15, 2020
• Expiry date: Jul 10, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M60/896
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A coupling system includes an applicator tool and an attachment ring mounted on the applicator tool. Clips are contained within the applicator tool and are deployed through the attachment ring in order to anchor the attachment ring to biological tissue. When deployed, tips of the clips follow a curved trajectory through an annular cuff of the attachment ring and through the underlying tissue. The tips loop back out of the tissue and to a location where they are later trapped or clamped by the attachment ring. While the tips are trapped or clamped, the applicator tool cinches the clips by pulling rear segments of the clips. Thereafter, the applicator tool disconnects from the attachment ring which remains anchored to the tissue and serves as a coupling for a cannula. The cannula can have movable lock members that secure it to the attachment ring.