Which of the following dilators are used in the common duct?

The use of dilators in surgical procedures is crucial for manipulating and enlarging structures within the body. In this context, when referring to common duct dilation, Bake's dilators are specifically designed for this purpose. They have a unique tapered design that allows for controlled and gradual widening of the common bile duct, facilitating access during procedures such as stone removal or stenting.

Bake's dilators are particularly advantageous because they can help avoid trauma to the ductal walls while providing the necessary expansion. Their effective use can improve visibility and access for the surgeon, ultimately enhancing the success of the procedure related to the common duct.

In contrast, other dilators like Pratt and Van Buren are typically used for different anatomical structures or situations, such as the urethra, and Hegar dilators are primarily utilized in gynecological procedures for cervical dilation. Understanding the specific applications of different dilators is essential for ensuring safe and effective surgical techniques.