Tissue retrieval device with buckling arms

US8409216B2 · kind B2 · utility

Assignee

• Ethicon Endo-Surgery, Inc. · US

Inventors

• Shailendra K. Parihar · Mason, US
• Frederick E. Shelton, IV · Hillsboro, US
• Haresh Digambar Patil · Dhule, IN
• Mark J. Bookbinder · Blue Ash, US
• Wells D. Haberstich · Loveland, US

Key dates

• Filing date: Jan 25, 2010
• Grant date: Apr 2, 2013
• Expiry date: Mar 9, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/2932
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A specimen retrieval instrument comprises a handle assembly, an actuating rod, an introducer tube, and a retrieval bag. In some versions the instrument includes a fixed arm and a buckling arm that attach to the retrieval bag and that are in communication with the actuating rod. Upon translation of the rod through the tube, the bag may be distally deployed from a proximal position within the introducer tube, and the buckling arm may open the bag for receiving a specimen. In some versions the instrument includes a support arm and a spring loop, with the spring loop attaching to the retrieval bag and the support arm attaching to the spring loop. The support arm and spring loop are in communication with the actuating rod such that movement of the rod deploys the bag from an initial position within the tube and opens the retrieval bag for receiving a specimen.