Provision of treatment and / or dental examination, dental coupling unit as well as procedure for rinsing the liquid transport system of a treatment and / or dental examination arrangement

摘要

Dental coupling unit (1), which at its front end (11) can be detachably coupled with an instrument accessory (2) for dental treatment and / or examination and can also be connected with a delivery unit (3) to provide supply means for the instrument accessory (2), the supply means comprising at least one liquid, extending through the coupling unit (1) to the instrument accessory (2) a means supply line ( 4) for the liquid and additionally extending a return means conduit (5) through the coupling unit (1), which joins with an end zone directed towards the instrument accessory (2), of the conduit media supply (4) extending through the coupling unit (1), characterized in that the coupling unit (1) has a valve arrangement (6), which in a position placed on the instrument accessory (2) ) co The liquid flows from the coupling unit (1) to the instrument accessory (2) and in an unplaced state of the instrument accessory (2) conducts the liquid to the media return line (5) and blocks an outlet of the liquid at the front end (11) of the coupling unit (1).