circular stapler
Surgical instrument that creates a circular anastomosis with concurrent resection.
Full Definition
A circular stapler is a specialized surgical device used to create end-to-end or end-to-side anastomoses in gastrointestinal surgery. The instrument simultaneously cuts tissue and places a double row of titanium staples in a circular configuration, creating a secure, hemostatic anastomosis. Circular staplers are available in various diameters (21mm to 34mm) and are commonly used in colorectal surgery, particularly for low pelvic anastomoses where hand-sewn techniques would be technically challenging. The device consists of an anvil, cartridge, and firing mechanism, and proper sizing and technique are crucial for optimal outcomes.
Usage
Usage note: Often specified by diameter size in operative reports.
In Context
- "A 29mm circular stapler was used to create the colorectal anastomosis." — Operative report
- "The circular stapler firing was completed with intact donuts confirming adequate tissue compression." — Intraoperative note