Abstract: An intracavitary applicator, such as a vaginal applicator, includes an elongate outer shell selectively housing an elongate cylinder insert, each having an open, proximal end and a closed and curved, distal end. An endcap selectively closes the proximal ends. A central through-bore extends substantially the length of the cylinder insert. Outer guide channels run along the length and around the curved distal end of the cylinder insert to terminate near an opening of the central through-bore. Guide holes and an endcap through-bore on the endcap align and communicate with the guide channels and central through-bore, respectively, when assembled to form pathways for introduction of radioactive sources and/or other instruments. The outer shell has a thinner wall at the distal end than the side to enable the insert to be closer to the target treatment area. An anchor collar can be used to fix positioning of the intracavitary applicator.

Abstract: An intracavitary applicator, such as a vaginal applicator, includes an elongate outer shell selectively housing an elongate cylinder insert, each having an open, proximal end and a closed and curved, distal end. An endcap selectively closes the proximal ends. A central through-bore extends substantially the length of the cylinder insert. Outer guide channels run along the length and around the curved distal end of the cylinder insert to terminate near an opening of the central through-bore. Guide holes and an endcap through-bore on the endcap align and communicate with the guide channels and central through-bore, respectively, when assembled to form pathways for introduction of radioactive sources and/or other instruments. The outer shell has a thinner wall at the distal end than the side to enable the insert to be closer to the target treatment area. An anchor collar can be used to fix positioning of the intracavitary applicator.