What instrument is used to dilate the urethra?

The Van Buren sounds are specifically designed for the dilation of the urethra. These instruments are made of metal and come in various sizes, allowing for gradual dilation. They are particularly useful in surgical procedures involving the urethra, such as urethral strictures or during certain types of urethral surgeries.

In contrast, the Hegar dilator is primarily used for cervical dilation rather than urethral dilation, making it less suitable for this specific application. The Heaney needle holder is intended for holding needles during suturing and is not used for dilation. The Kelly clamp, commonly utilized for grasping tissues or clamping blood vessels, also does not serve the purpose of dilation. Thus, the Van Buren is the appropriate choice for urethral dilation in this context.