Gelpi vs Weitlaner Retractor: Which Self Retaining Retractor Fits the Job
Instrument guides
Gelpi vs Weitlaner Retractor: Which Self Retaining Retractor Fits the Job
How the Gelpi and the Weitlaner hold a wound open, where each design came from, the sizes we make, and which one suits a deep or a shallow incision.
Both are self retaining retractors: you open them, the ratchet holds them open, and nobody has to stand there pulling. The difference is the tip. A Gelpi ends in one sharp, curved point on each arm, so it reaches down into a deep, narrow wound and holds at depth. A Weitlaner ends in a row of rake prongs on each arm, so it spreads the force along a shallower, wider incision. Choose a Gelpi for depth and a Weitlaner for breadth.
Where did the Gelpi and the Weitlaner come from?
The Weitlaner is named after Franz Weitlaner, an Austrian doctor who ran a general practice in the village of Ottenthal. He had no trained assistant to hold a wound open, so he made an instrument that would do it for him, and he described it in 1905 in an article called "Ein automatischer Wundspreizer", an automatic wound spreader. He never patented it. The account of Weitlaner and his retractor draws on Sharma and Swan's 2009 paper in The Journal of Trauma.
The Gelpi is named after Maurice Joseph Gelpi, a New Orleans surgeon who graduated from Tulane School of Medicine in 1909 and later taught clinical surgery there. Tulane's library guide to Dr Gelpi credits him with a self retaining perineal retractor, first made by V. Mueller and Co. in 1911, that is now known as the Gelpi retractor.
Both designs answered the same problem a century ago: a surgeon who needs an extra pair of hands. That is still why they are on almost every general and orthopaedic tray.
How does a Gelpi differ from a Weitlaner?
| Gelpi | Weitlaner | |
|---|---|---|
| Tips | One sharp, curved point on each arm | Rake prongs on each arm: 2x3 or 3x4 |
| Where it holds | At depth, in a narrow wound | Along the edges of a shallower incision |
| Force | Concentrated on two points | Spread over six or seven points |
| Typical use | Deep layers, fascia, spine and perineal access | Skin and subcutaneous layers, wider exposure |
| Our lengths | 9, 11.5, 13.5 and 18 cm | 11 cm (2x3), 14, 16.5 and 19.5 cm (3x4), Beckman to 24.5 cm |
A Gelpi's two points press hard on a small area, which is why it holds well deep down and why it needs care near delicate tissue. A Weitlaner spreads the load, so it is gentler on skin edges but cannot reach as deep.
Which Gelpi and Weitlaner sizes can you order?
| Pattern | Lengths | Tip | Choose it when |
|---|---|---|---|
| Gelpi retractor | 9, 11.5, 13.5, 18 cm | Single sharp point | You need to hold a deep, narrow wound open |
| Weitlaner 2x3 prongs | 11 cm | Two and three prongs | The incision is small or confined |
| Weitlaner 3x4 prongs | 14, 16.5, 19.5 cm | Three and four prongs | General superficial retraction |
| Beckman Weitlaner 3x4 | 14, 16.5, 20, 24.5 cm | Three and four prongs | The field is larger and you need a longer frame |
| Weitlaner solid blade | 13 cm, 18 mm deep blades | Solid blunt blades | You want no points at all against the tissue |
Length here is overall length. A longer instrument opens wider and reaches further, but it also takes more room on the field, so match the length to the incision rather than buying the largest.
How do you choose between them?
- Depth first. If the tissue you need to hold back sits deep below the skin, a Gelpi. If it is skin and the layer under it, a Weitlaner.
- Then width. For a long incision, two Weitlaners placed along it often work better than one large one.
- Then the tissue. Near thin or friable tissue, prefer the Weitlaner's spread load or the solid blade version.
- Sets. Many trays carry one of each: a 13.5 cm Gelpi and a 16.5 cm Weitlaner cover a wide range of cases.
What do we check when we make them?
A self retaining retractor fails in two places: the ratchet and the tips. We check that the ratchet engages on every tooth and releases with one thumb, that the arms close square so the tips meet, and that every prong or point is the same length and free of burrs. These are hand finished in Sialkot from surgical grade stainless steel and are fully autoclavable.
How should they be cleaned and inspected?
Rinse the instrument under warm water straight after use so blood does not dry in the ratchet or between the prongs, then clean it before sterilization. A soft nylon brush reaches the ratchet teeth and the hinge. Never leave instruments in saline, because it causes corrosion. Before every use, check that the ratchet holds, that the arms close evenly and that no tip is bent or burred. Our instrument care guide gives the full routine, and the CDC guidance on cleaning instruments before sterilization sets out why cleaning comes before the autoclave.
Frequently asked questions
Is a Gelpi retractor self retaining?
Yes. Both the Gelpi and the Weitlaner hold themselves open with a ratchet lock, so no assistant is needed to keep the wound open.
What is the difference between a Weitlaner and a Beckman Weitlaner?
Both have 3x4 rake prongs. We make the Beckman version in longer sizes, up to 24.5 cm, for larger fields.
Can a Gelpi retractor be autoclaved?
Ours can. It is surgical grade stainless steel. Clean it first and open the ratchet before the cycle.
Sharp or blunt prongs on a Weitlaner?
Sharp prongs grip skin edges firmly. Blunt prongs or the solid blade version are kinder near vessels and nerves. If you are not sure, tell us the procedure and we will suggest one.
Related instrument guides
Order or build a retractor set
See the full self retaining retractor range. For a mixed set for a hospital or a distributor, send us your list and we will send you a quote.