Trocar stability assembly

US8597250B2 · kind B2 · utility

Assignee

• Applied Medical Resources Corporation · US

Inventors

• David T. Okihisa · Irvine, US
• Russell E. Ahlberg · Rancho Santa Margarita, US
• Gary M. Johnson · Boise, US
• Jeremy J. Albrecht · Atascadero, US
• Michael L. Michaud · Lake Forest, US
• Benjamin A. Gianneschi · Orange, US

Key dates

• Filing date: Apr 24, 2012
• Grant date: Dec 3, 2013
• Expiry date: Apr 24, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/3492
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A stability assembly for a trocar cannula includes a conical stability member, a base, and a cannula retention member. The base has a passage defining an inner surface, and a constriction in the passage. The cannula retention member is rotatable within the passage, and advancement of the cannula retention member over the constriction reduces the inner diameter of the passage to restrain a cannula in the passage. Various latch mechanisms including interface surfaces on the base and the cannula retention member can be used in the stability assembly to secure the stability assembly around a cannula. Various conical stability members can be used in the stability assembly.