Handpiece with Cartridge for a Skin Photo-Tratment Apparatus

Handpiece for a cosmetic, medical/therapeutic skin phototreatment device, which handpiece is connected to a power and liquid coolant supply unit by a cable and tube connection in the device and comprises

• a shell which houses, in a removable manner, a cartridge with a window having a light source and its cooling circuit, a cap which closes the site of the cartridge in the shell,
• a light guide which is connected to the light source by the window of the cartridge and the outlet surface of which is to be applied to or above the surface of the skin to be treated,
• characterised in that
• the site of the cartridge above the light guide is defined by a base carrying the connection members for the cartridge and by a guide surface, one end of which corresponds to the base and the sides of which are lateral guide rails around the site of the light guide, and
• the cartridge is in the form of a planar casing one end of which carries a transverse assembly plate provided with connection members homologous to those of the base, and the sides of which comprise guide ribs for cooperating with the lateral rails of the site and positioning the cartridge and guiding it in its translational movement towards its site for insertion and connection at the end of its travel, and for keeping it connected.