A V-type uterine manipulator is a surgical instrument used in laparoscopic hysterectomies. It helps improve access and exposure to the pelvic cavity. It also helps identify the vaginal fornices and maintain pneumoperitoneum during the procedure. 

Uterine manipulators are essential instruments for mobilizing the uterus, identifying the vaginal fornices, and sealing the vagina during a hysterectomy. They are often used in simple and radical hysterectomies.