Final answer:
The Van Buren dilator is used for male urethral dilation to treat urethral strictures. It is designed to match the natural curvature of the male urethra, facilitating the passing of the dilator through the urethra.
Step-by-step explanation:
The type of dilator used for male urethral dilation is known as a Van Buren dilator.
Dilation of the urethra may be necessary to treat urethral strictures, which are narrowings of the urethra due to scar tissue. The procedure involves using gradually increasing sizes of dilators to stretch the stricture. Van Buren dilators are designed with a specific curve to match the natural curvature of the male urethra, which helps in passing the dilator smoothly through the urethra and the stricture. Other types of dilators like Jackson, Bakes, and Hegar may be used for other purposes, such as gynecological exams or to dilate other body orifices or ducts.