Application nozzle for skin beauty treatment of stains by cell selective cryotherapy

摘要

Problem to be solved: to provide a nozzle capable of reproducible and uniform cooling action in the therapeutic region without changing the inherent characteristic of cold gas, and to enable effective skin beauty treatment.The present invention relates to a nozzle for use in a skin beauty treatment apparatus for stains by cell selective freezing treatment.The apparatus is provided with a spray port to be supplied from a pressurized liquefied cryogenic gas tank.The nozzleHaving an upper ring portion (11) coupled to the shell bodyThe central body portion (12) extends from the upper ring portion (11);A sidewall (12a) which is narrowed below the central body portion (12) isWith longitudinal aperture (10),Defines a gas expansion space communicating with a truncated conical tube (13a) formed in the tip portion (13) applied to the skinThe spray conduitThis is characterized by an opening through the discharge port (13b).Diagram