Staple forming pocket arrangements

US10499914B2 · kind B2 · utility

Assignee

• Ethicon, Inc. · US

Inventors

• Zhifan F. Huang · Mason, US
• Frederick E. Shelton, IV · Hillsboro, US
• Jason L. Harris · Lebanon, US
• Gregory J. Bakos · Mason, US
• Geoffrey C. Hueil · Cincinnati, US

Key dates

• Filing date: Dec 21, 2016
• Grant date: Dec 10, 2019
• Expiry date: Aug 22, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/2936
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In various embodiments, a stapling assembly is disclosed. The stapling assembly comprises, among other things, an anvil configured to deform staples. The anvil comprises a tissue-engaging surface and a pair of forming pockets defined in the tissue engaging surface, wherein the pair of forming pockets is configured to deform the legs of a staple. The forming pockets comprise, one, a proximal forming pocket comprising a forming surface, wherein the forming surface comprises an entry zone comprising a first radius of curvature and an exit zone comprising a second radius of curvature, wherein the first radius of curvature and the second radius of curvature comprise a ratio of 1.5:1 to 3:1, and wherein the first radius of curvature is between 8 times and 10 times larger the staple diameter and, two, a distal forming pocket.