Needle holders are specialized surgical instruments used by medical professionals to securely grasp and manipulate needles during suturing procedures. They typically feature a ratchet mechanism that allows the user to lock the needle in place, providing better control and precision while stitching tissues together. These tools come in various sizes and designs, catering to different surgical needs. Some common types include Mayo-Hegar and Crile-Wood needle holders, each suited for specific applications. Proper use of needle holders is essential for effective wound closure and minimizing tissue damage during surgeries.