Argon-helium cryoablation, commonly known as "argon-helium knife," is an ablation technology using "ultra-low temperatures" to treat tumors. When argon gas is rapidly released at the needle tip, tumor tissue temperature drops rapidly to -160°C, forming an ice ball causing coagulative necrosis of cancer cells; when helium gas is rapidly released, temperature rises to 20-40°C, rapidly thawing and fragmenting the solid ice ball. Repeated freeze-thaw cycles achieve the goal of destroying tumor tissue. Meanwhile, the dead tumor tissue left in situ after cryoablation can modulate tumor antigens, activate anti-tumor immune responses, and enhance immunity. Argon-helium cryoablation offers advantages including no surgery, minimal trauma, few side effects, few complications, and broad indications. The cancer-killing effect is promptly visible with confirmed efficacy, especially bringing new hope to elderly, frail patients unable to tolerate or unwilling to undergo surgery, effectively prolonging life and improving quality of life.
