Advances in circular stapling techniques for gastric bypass: the circular stapler introducer
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Updated: Jun 26, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
Rudolf Steffen1, Ahmed Guweidhi, Alejandro Metzger
1Berner Viszeralchirurgie, Klinik Beau-Site, Hirslanden, Switzerland. rudolf.steffen@bluewin.ch
Background:
Modern laparoscopic bariatric surgery relies strongly on stapling devices and the perfection of the anastomotic technique is at the core of the patient's safety.
Methods:
Circular stapler anastomosis is a common technique for performing gastro-jejunostomy in gastric bypass surgery. In obese patients, transabdominal circular stapler introduction can be challenging and associated with morbidity. To overcome these technical obstacles, we have developed a new device, circular stapler introducer (CSI) to assist both the abdominal wall passage of the circular staplers and its introduction into the jejunum.
Results:
The CSI facilitates the insertion of the circular stapler not only into the abdomen but also into the jejunum enhancing safety and swiftness of laparoscopic Roux-en-Y gastric bypass.
Conclusions:
Our innovative CSI device facilitates this part of the operation significantly and makes the performance of bariatric surgery more convenient.