Trocar with retention cannula

US8167843B2 · kind B2 · utility

Assignee

• Applied Medical Resources Corporation · US

Inventors

• Jeremy J. Albrecht · Atascadero, US
• Gary M. Johnson · Boise, US
• Matthew M. Becerra · Lake Forest, US
• Travis King · Diamond Bar, US
• Donald L. Gadberry · San Clemente, US
• Isabel Simons · Oceanside, US

Key dates

• Filing date: Oct 12, 2010
• Grant date: May 1, 2012
• Expiry date: Oct 12, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/349
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A trocar comprises a retention cannula comprising an inverted or incised retention pattern disposed thereon. Embodiments of the incised cannula exhibit reduced tissue trauma compared with screw-threaded cannula, improved fixation and/or retention compared with an unthreaded cannula, and good sealing between the cannula and the incision.