FLUID-DRIVEN MEDICAL OR DENTAL HANDLE

摘要

A medical or dental fluid-driven handle with a control or regulation circuit for the control or regulation of the rotational speed of a rotary part to a predetermined rotational speed and methods are presented. The handle comprises a rotary part that can be set in rotary motion by a drive fluid, a fluid line carrying the drive fluid to or from the rotary part or a fluid branch line that is connected to a fluid line carrying the drive fluid, and a control or regulation circuit that is designed to control or regulate the rotational speed of the rotary part. An electrodynamic converter is driven by the rotary part for generating electrical energy. An actuator element is configured to act on the drive fluid and is electrically connected to the electrodynamic converter such that the actuator element is supplied with electrical energy generated by the electrodynamic converter.

主权项

1. A medical or dental treatment device, comprising
a handle, a rotary part provided in the handle that can be set into rotary motion by a drive fluid, the rotary part being capable of driving a tool that can be connected to the rotary part, a device for determining a rotational speed of the rotary part, and a control and/or regulation device for the control and/or regulation of the rotational speed of the rotary part that is designed to compare the rotational speed of the rotary part determined by the device for determining the rotational speed of the rotary part with a set value and in the case of deviation of the determined rotational speed from the set value to operate an actuator element which acts upon the drive fluid in order to cause the rotational speed of the rotary part to approach the set value, wherein the actuator element can be driven with electrical energy and is located in the handle.