Rotational spun material covered medical appliances and methods of manufacture

US10675850B2 · kind B2 · utility

Assignee

• Merit Medical Systems, Inc. · US

Inventors

• John William Hall · North Salt Lake, US
• Zeke Eller · Plano, US
• Robert S. Kellar · Flagstaff, US
• Rachel Lynn Oberg · North Salt Lake, US
• Bart Dolmatch · Palo Alto, US
• Wayne Mower · Bountiful, US
• Robert J. Radford · Evanston, US

Key dates

• Filing date: Aug 21, 2015
• Grant date: Jun 9, 2020
• Expiry date: Aug 21, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2255/10
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A medical appliance or prosthesis may comprise one or more layers of rotational spun nanofibers, including rotational spun polymers. The rotational spun material may comprise layers including layers of polytetrafluoroethylene (PTFE). Rotational spun nanofiber mats of certain porosities may permit tissue ingrowth into or attachment to the prosthesis. Additionally, one or more cuffs may be configured to allow tissue ingrowth to anchor the prosthesis.