How to Choose the Right Scalpel Blade Size for Your Procedure

by Nice Products

Scalpel blades come in a wide variety of sizes and shapes, each designed with specific surgical applications in mind. Choosing the correct blade is essential for precision, patient safety, and procedural efficiency. Here's a practical guide to the most commonly used sizes.

Small Blades (No. 10, 11, 15)

  • No. 10 : One of the most widely used blades, the No. 10 has a large, curved cutting edge ideal for making large incisions in skin and muscle. It's a staple in general surgery.
  • No. 11 : A long, triangular blade with a sharp point, the No. 11 is used for stab incisions, opening abscesses, and procedures requiring a fine, pointed tip.
  • No. 15 : Smaller than the No. 10 with a similar curved shape, the No. 15 is favored for precise incisions in areas requiring greater control, such as facial surgery, cupping therapy / Hijama or pediatric procedures.

Medium Blades (No. 20, 21, 22)

  • No. 20, 21, 22 : These larger blades are designed for use with No. 4 handles and are suited to deeper or broader incisions, commonly used in orthopedic and general surgery.

Specialist Blades

  • No. 12 : A sickle-shaped blade used in ENT and oral surgery.
  • No. 23 : A larger, curved blade often used in cardiovascular procedures.
  • Stitch Cutters : Specifically designed for suture removal, minimising the risk of accidental tissue damage.

Matching Blade to Handle

It's equally important to pair the correct blade with the right handle. Blades No. 6 - 17 are typically used with a No. 3 handle, while larger blades (No. 18 - 36) require a No. 4 handle.

When in doubt, consult your procedure guidelines or speak with your theatre team. Having a well-stocked selection of blade sizes ensures you're always prepared.

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