Circular surgical stapler having staples with expandable crowns

US11911039B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Chad P. Boudreaux · Cincinnati, US
• Jeffrey L. Aldridge · Lebanon, US
• Nicholas M. Morgan · West Chester, US
• Michael J. Stokes · Cincinnati, US
• Marissa T. Kamenir · Cincinnati, US
• John Kevin Bruce · Burlington, US
• John S. Kimsey · Walton, US
• Yvan D. Nguetio Tchoumkeu · Blue Ash, US

Key dates

• Filing date: Aug 13, 2021
• Grant date: Feb 27, 2024
• Expiry date: Aug 13, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/1132
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical stapler instrument includes a stapling head assembly that receives a plurality of staples. The staples are configured with features that allow the staples to expand after deployment so that an anastomosis created by the instrument can increase in size after forming. In some versions the staples expand automatically after deployment, and in other versions the staples expand in response to tissue forces imparted upon the staples after deployment. In some versions the staples are configured to be deployed in various patterns that promote expandability of the circular staple line.