No, more like the attached image. I’m glad you mentioned space or, I also had that inserted… Surgically between the rectum and the prostate, done when I had the markers installed for treatment.

When I had proton radiation treatments in April 2021, my RO had never used SpaceOAR; he had only used endorectal balloons. (So, I connected him with Boston Scientific to get the product in.) I was his first.

SpaceOAR Hydrogel was FDA-approved in 2015; an improved version (SpaceOAR Vue) was FDA-approved in 2019. Barrigel was FDA-approved in 2022. BioProtect was FDA-approved in 2023.

Clinical data showed that SpaceOAR offered improved benefits when compared to the older endorectal balloons: https://www.urologytimes.com/view/hydrogel-spacer-lowers-rectal-bleeding-vs-balloon-immobilization-treatment