Retractor

Quick Answer: A retractor is an instrument that holds back the edges of an incision or tissue so that deeper structures stay in view. This surgical retractor is used in skills teaching and in dissection, where it keeps a specimen open while students observe.

Hand-Held and Self-Retaining Retractors

Retractors fall into two broad groups. Hand-held types, such as the Langenbeck (a single flat, angled blade on a handle), the Czerny (double-ended, with a bifid blade at one end) and the larger Deaver, are held by an assistant. Self-retaining types, such as the Weitlaner or the Gelpi, have ratcheted arms that spread and lock, so no one has to hold them.

The listing is titled simply ‘Retractor’, so the pattern, blade size and whether a self-retaining type is wanted should be specified when ordering. In biology teaching, a small retractor is also useful in dissection of larger preserved specimens, holding the body wall apart while students trace organs.

In surgical skills labs, retraction is one of the first assistant skills taught: holding steady, even tension without crushing tissue, and positioning the blade so the operator’s view is clear.

Applications

• Holding the body wall open during dissection of a preserved specimen
• Assistant-skills practice on skin pads and simulated wound models
• Instrument identification in operating-theatre technique courses
• Demonstration dissections where a teacher needs both hands free

Specifications

Care & Handling

• Clean the retractor promptly, paying attention to ratchets and hinged arms on self-retaining types, where debris collects.
• Steam sterilise metal retractors as required and dry before storage.
• Check blades and teeth for bending or sharp burrs, which tear tissue and gloves.

Why Choose LabEquip

Medical and nursing colleges order retractors to build instrument sets for skills teaching, and biology departments use them for demonstration dissections on a dissecting tray. LabEquip lists this item within its Biology Lab Products range; describe the pattern you need on the contact page.

Frequently Asked Questions

What is the difference between hand-held and self-retaining retractors?

A hand-held retractor must be held by an assistant. A self-retaining retractor has arms that spread and lock with a ratchet or screw, keeping the wound open on its own.

Which pattern suits a skills lab?

Langenbeck and Czerny retractors are common starting points for teaching assistant skills. A small self-retaining retractor such as a Weitlaner is useful for showing the other type.

Can a retractor be used in biology dissection?

Yes. A small retractor holds the body wall of a preserved specimen apart so students can see and trace organs without having to hold the flaps.

How much force should be used when retracting?

Only enough to keep the view clear. Excessive or uneven pull crushes tissue edges, so skills teaching stresses steady, gentle tension and regular repositioning.

How are retractors cleaned?

Rinse off tissue, wash with detergent using a brush on hinges and teeth, then sterilise and dry. Self-retaining types should be cleaned open.

What details are needed to order a retractor?

Name the pattern, the blade width or depth if known, and whether it is hand-held or self-retaining. When only the practical is known, describe that in your message instead.

Last Updated: September 2026