What is the needle holder that has a self-locking mechanism called?

The needle holder with a self-locking mechanism is known as the Castroviejo needle holder. This type of needle holder is particularly useful during surgical procedures, as the self-locking feature allows for greater control and stability when suturing. The mechanism ensures that once the needle is grasped, it remains securely in place until the surgeon intentionally releases it, providing a reliable way to manage delicate suturing tasks.

The Castroviejo needle holder is often favored in microsurgery and other intricate surgical disciplines due to its precision and ability to hold fine needles securely. In contrast, the other options listed, while also being types of needle holders or clamps, do not have the self-locking feature that distinguishes the Castroviejo. For example, Mayo and Crile hemostats are designed primarily for clamping blood vessels and tissues, while Kelly clamps serve to control bleeding but do not have the locking mechanism associated with needle holders.