Tissue stabilizing features for circular surgical stapler
US11896232B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2021 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Dec 4, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/3205
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument includes a stapling assembly and an anvil configured to cooperate to compress, staple, and cut tissue. The stapling assembly includes a deck member having a deck surface that faces distally and includes a plurality of staple openings configured to receive a plurality of staples, and a knife member having a distal end that defines a cutting edge. The anvil includes an anvil surface having a plurality of staple forming pockets configured to form the staples, and a washer positioned adjacent to the anvil surface and having a proximal face. The cutting edge of the knife member is configured to cut through the tissue and the proximal face when the surgical instrument is fired. The proximal face includes a tissue gripping feature configured to stabilize and inhibit the tissue from translating across the washer and the anvil surface during firing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.