Patent ID: 7284981

Claim:
Functional handpiece, comprising an elongate handpiece body having a rearward end with a connection element for connection with a flexible supply line, said handpiece having a forward end with a light emisson element of a light permeable material for illuminating a treatment site, said light emission element having an outlet opening for a fluid medium, the light emission element forming a forward region of the functional handpiece and being releasably connected to a remaining region of the functional handpiece, and the light emission element having a plug-in fitting, and the remaining region comprising a cannula, the light emission element releasably connected to the cannula, the cannula including a latching edge; wherein the light emission element is connected to the remaining region of the functional handpiece by means of a latching device integral with the light emission element, the latching device including a latching nose integral with the light emission element, which can spring in radially inwardly and can self-actingly spring out behind the latching edge on the cannula; and a light conductor is disposed within the cannula and extends from a lamp through the cannula and butts against the light emission element within the cannula to emit light into the light emission element.