Tissue ligation devices and controls therefor

US9198664B2 · kind B2 · utility

Assignee

• SENTREHEART LLC · US

Inventors

• Gregory W. Fung · San Mateo, US
• Russell A. Seiber · Cullowhee, US
• Eduardo Sager · Milpitas, US
• Gary H. Miller · Milpitas, US
• Maria Garcia · San Jose, US
• Ryan Douglas Helmuth · Saratoga, US
• Arnold M. Escano · Santa Clara, US
• Douglas Todd Ellison · Plano, US
• William E. Cohn · Houston, US

Key dates

• Filing date: Apr 1, 2010
• Grant date: Dec 1, 2015
• Expiry date: May 10, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/0811
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Described here are devices for closing one or more tissues, and handles for controlling these devices. Generally, the devices described here comprise a snare loop assembly, wherein the snare loop assembly comprises a snare and a suture loop, and a handle for controlling the snare loop assembly. In some variations the snare loop assembly may comprise a retention member that may releasably connect the suture loop to the snare. In other variations the devices comprise one or more force-reducing suture locks to help prevent the suture loop from inadvertently disengaging from the snare loop assembly. In still other variations, the excess-suture management features. The handles described here may be configured to remove excess suture from a suture loop, and may also be configured to release the suture loop from the snare loop assembly.