The cryoprobe was
the tool used in earlier forms of prostate cancer cryotherapy.
The cryoprobe is both thicker and less precise than
the ultra-thin 17-guage cryoneedles used in prostate
cancer cryotherapy today. Rather than argon and helium
gases for growing the iceball that treats the prostate
cancer cells, the cryoprobe uses liquid nitrogen. Today’s
form of prostate cancer cryotherapy is more effective
and precise than the cryoprobe with liquid nitrogen.