Advanced applicator systems and methods

Systems, methods, and apparatuses are provided for an advanced gynecological applicator. In accordance with some embodiments, a brachytherapy applicator head and assembly is provided. The assembly may include two ovoid tubes configured to receive radiation sources, the two ovoid tubes combining to form a rounded applicator having a middle opening and comprising a plurality of needle holes to guide interstitial needles. The assembly may also include a central applicator tube configured to receive a radiation source that is located within the middle opening. Additionally, the assembly may include a vaginal cap that includes a tool-free connection to the two ovoid tubes and includes needle guides that align with the needle holes of the two ovoid tubes. The assembly may include a one-piece template for securing interstitial needles. The assembly may further include a tool- free connector to secure the two ovoid tubes to the central applicator tube.