Amputation system for field use

US11160576B1 · kind B1 · utility

Assignee

• United States of America as represented by the Secretary of the Air Force · US

Inventors

• Samuel Emery · Alexandria, US
• Lee Foltz · Indian Head, US
• Daniel McCarthy · Baltimore, US
• Keith Chamberlain · Waldorf, US
• Kerry Clark · La Plata, US
• Peter A. Margiotta · La Plata, US
• Matthew Bradley · Columbia, US
• David R. Whittaker · Watford, GB
• Erin E. Koelling · Washington, US

Key dates

• Filing date: Jun 29, 2020
• Grant date: Nov 2, 2021
• Expiry date: Jun 29, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/32006
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An amputation system includes a cutting element having a cutting blade traversing a V-shape. The V-shape has a vertex and an angle in a range of 90-120°. A rod, rigidly coupled to the cutting element, has its longitudinal axis aligned with the vertex so it bisects the angle of the V-shape. A barrel having a bore receives at least a portion of the rod therein wherein the rod's outboard end resides in the bore. An energetic energy source, positioned in the bore adjacent to the rod's outboard end, generates a pressure force that is incident on the rod's outboard end. The pressure force is one that peaks within 0.5 milliseconds to propel the rod from the bore at a velocity in a range of 300 to 1000 feet per second.