Tool for neuroma treatment and nerve regeneration procedures

US11185344B2 · kind B2 · utility

Assignee

• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Nicholas B. Langhals · Ypsilanti, US
• Cynthia Anne Chestek · Ann Arbor, US
• Paul S. Cederna · Grass Lake, US
• Albert Shih · Columbus, US
• Melanie G. Urbanchek · Ann Arbor, US
• Grant Kruger · Ann Arbor, US
• Jeffrey Stephen Plott · Ferguson Road, US
• Jordan T. KREDA · Northville, US

Key dates

• Filing date: Mar 11, 2016
• Grant date: Nov 30, 2021
• Expiry date: Apr 1, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/062
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The present disclosure provides a mechanically-actuated tool for cutting a tissue graft having a hollow core and methods for use thereof. A portion of a biological structure, such as a nerve, is attached to the hollow core to form an implantable neural graft assembly. The tool has a cutter mechanism and a grasper mechanism. The grasper mechanism has one or more component(s) that open and close via an actuation mechanism, like a handle, and rotate via a controller component, like a rotatable wheel. The cutter mechanism may be a cutting tube component that harvests the tissue graft. The tool may also have an ejector mechanism to remove the tissue graft as part of the implantable neural graft assembly. Such devices and methods are particularly suitable for treating neuromas and other neural regeneration procedures.