DENTAL PREPARATORY METHOD AND APPARATUS USING FREE STREAM OF FLUID

摘要

The hand-tool (5) has a treatment-element and is connected to an energy source. A nozzle (6) emits a high-pressure jet of concentrated liquid and is supplied by an hydraulic supply unit (2) as energy source and controlled by an adjustable pressure-regulator (28). A hydraulic pump (17) is connected to a liquid-container (3) and is operated by a drive unit. A pneumatically controlled three-way valve in the feed pipe leading to the nozzle. The pneumatic control circuit contains a tool-sensor-valve (39) and a foot-valve (40) operated by a pedal switch