Device for controlled operation of a surgical or dental drive unit

摘要

A device for controlled operation of a surgical or dental drive unit driven by a compressed fluid source p available in the operating room and comprising A) a control valve attachable to the drive unit for controlling a flow rate of a compressed fluid flowing from a compressed fluid source p to a drive unit; B) a first control means by means of which the control valve is operable; and C) a second control means by means of which a flow rate of compressed fluid may be controlled. The device further comprises D) a control switch which is attached to the control valve and allowing to select between at least three positions (A;B;C): in position A the control valve is locked and closed; in position B the control valve is unlocked and a flow rate of the compressed fluid is controllable by means of the first control means; and in position C the control valve is unlocked and open permitting the control of a flow rate by means of the second control means.