Coupling Screw For Dynamic Hip Screws

Description

Coupling Screw For Dynamic Hip Screws

The DHS coupling screw links the insertion wrench to the lag screw. It holds the two together so the screw cannot slip off during insertion.

A small but vital part

Without coupling, the lag screw could separate from the wrench inside the bone. Therefore this screw locks them together. Once the lag screw is in place, it comes out again.

How it is used

The coupling screw passes through the wrench and threads into the back of the lag screw. Then the surgeon drives the assembly over the guide wire. Finally, the coupling screw is removed.

Who uses a DHS coupling screw

Trauma surgeons use it in every DHS case. Also, scrub staff check it during set counts. Spares are useful because small parts go missing.

Some systems use it again

Certain techniques use the coupling screw to pull the plate onto the lag screw. However, follow your system’s instructions. Each system differs.

Fit

Threads must match your lag screws. Consequently, confirm your system before ordering. Also, we will check fit for you.

DHS coupling screw details

• Joins wrench and lag screw
• Threaded tip
• Removed once the screw is seated
• Supplied non-sterile

Care

Run a small brush along the thread, then rinse. After drying, keep the screw beside the DHS wrench.

Cover and support

Should each coupling screw show a material fault, you keep three years against manufacturing defects. Each coupling screw passes a thorough once-over in Atlanta prior to packing. The order FAQ handles most buying questions. See our complete orthopedic lineup for similar items. You might pair it with the DHS wrench. We gladly answer questions before you buy. The FDA lists ASTM F899 for surgical steels. A second coupling screw in stores saves a cancelled case.

For use by trained teams. Shipping options appear on our delivery terms. Pictures on this page are illustrative, and surgical steel has nickel in it; check the cleaning guide for advice.