Circular stapler sizer
A reusable stainless-steel instrument with an oval/rounded head in graduated sizes (e.g. 25/29/33 mm), introduced transanally to measure rectal or colonic lumen diameter.
How it is used
Used before firing a circular stapler for a colorectal anastomosis (e.g. after low anterior resection) to select the correct stapler head/cartridge size.
Sources
This entry is part of the Instriq catalog, researched and written per specialty from real web research -- never generated or invented without verification -- and reviewed skeptically and independently before publication. How this catalog is written.
History
Added to the catalog on 2026-10-16.
Dates derived from the project's public version-control history on GitHub, not a live collaborative edit log.