Enterotomy Scissors — GI Surgery Instrument Guide

Enterotomy scissors are a specialized instrument that most general surgery procurement lists either overlook entirely or lump together with standard Mayo scissors. The difference matters — an enterotomy requires controlled, precisely directed cuts through the bowel wall, and a scissors designed for that specific task produces cleaner wounds with better anastomotic outcomes than a repurposed general-purpose scissors.

What Is an Enterotomy Scissors?

An enterotomy scissors is designed for incising the intestinal or gastric wall to create an opening (enterotomy) for anastomosis, stoma formation, or access to the bowel lumen. The key design features that distinguish it from standard scissors are:

• One blunt tip, one sharp tip — the blunt tip is introduced through the bowel wall lumen first to guide the incision direction without perforating the opposite wall; the sharp tip stays external and provides the cutting force
• Angled blades — the blade plane is typically angled 30 to 45 degrees from the handle axis; this allows the surgeon to direct the cut along the antimesenteric bowel wall while holding the handles in a natural position
• Narrow blade width — reduces the displacement of bowel contents during the cut and provides better visual control of the incision line

Standard Enterotomy Scissors Patterns

Potts-Smith Enterotomy Scissors (Angled on Flat)

The Potts-Smith scissors is the most widely recognized enterotomy pattern. Available in two standard angles:

• 22.5-degree angle (most ordered) — used for standard bowel enterotomy and side-to-side anastomosis stapler access sites
• 45-degree angle — used in technically demanding angles of approach where the 22.5-degree version does not provide adequate access without repositioning the bowel

Overall length: 18 cm, giving sufficient reach into the abdominal cavity without excessive instrument bulk in the field.

Straight Enterotomy Scissors

Used for transverse bowel incisions where a straight cut is required — gastrotomy access, purse-string suture placement for stapler anvil insertion (PPSD technique), and duodenotomy. Straight blades, one blunt tip, 17 to 19 cm overall length.

Enterotomy vs Mayo Scissors — Why the Substitution Fails

Curved Mayo scissors are sometimes used for enterotomies in resource-limited settings, but the substitution introduces two problems: the rounded tip of a Mayo scissors is shorter than a dedicated enterotomy tip, making guidance into the bowel lumen less controlled; and the Mayo blade angle is designed for external tissue cutting rather than intraluminal guidance, which requires more repositioning between cuts along the enterotomy line.

A dedicated enterotomy scissors costs little more than a quality Mayo scissors but produces consistently cleaner enterotomy lines with less mucosal tearing — which matters for anastomotic healing.

Use in Laparoscopic-Assist Procedures

In hand-assisted laparoscopic colectomy and laparoscopic anterior resection with extracorporeal anastomosis, enterotomy scissors are used through the hand-assist port or after specimen delivery through the mini-laparotomy. Long enterotomy scissors (21 to 23 cm) are available for cases where the mini-laparotomy is positioned higher in the abdomen and standard 18 cm scissors do not reach comfortably.

Material and Certification

All Fizza Surgical enterotomy scissors are manufactured from 316L stainless steel with hollow-ground blade bevels for long-term edge retention. Instruments are manufactured under ISO 13485:2016 with CE marking and are validated for steam autoclave at 134 degrees Celsius.

Available individually (Potts-Smith 22.5-degree, 45-degree, and straight pattern) or as part of configured bowel surgery and anastomosis instrument sets. Contact Fizza Surgical for pricing or to request a catalog of our complete gastrointestinal surgery instrument range.