What is the function of the ratchet on a hemostat?

• A. To open the jaws wider
• B. To change the instrument length
• C. To clean clamping surfaces
• D. To lock the instrument in a closed position by engaging teeth on the handles

Answer: (D)

The ratchet on a hemostat is a locking mechanism that keeps the jaws closed by engaging teeth on the handles, so you can clamp tissue or vessels and maintain the grip without continuous hand pressure. This locking feature provides stability and reduces fatigue during a procedure. Release is done by disengaging the ratchet when you’re ready to open, while widening the jaws, changing instrument length, or cleaning clamping surfaces are not functions of the ratchet.