DRIVE DEVICE FOR MEDICAL OR DENTAL TOOL

摘要

Various mechanical drive devices, mechanical gears, combinations thereof and medical or dental treatment devices with such mechanical drive devices or gears are described. The mechanical drive devices and mechanical gears convert a unidirectional rotational movement received by a motor drive into a multidirectional movement, so that a tool-holding device of the treatment device can be induced to a multidirectional movement, in particular to a, preferably simultaneous, lifting and rotating movement or to a lifting and oscillating rotational movement with a reduced rotational speed.

主权项

1. A drive device for a medical or dental tool, comprising:
a drive shaft arrangement designed to transmit a unidirectional rotational movement; an output shaft designed to induce an oscillating rotational movement of the tool, wherein the oscillating rotational movement comprises an alternating rotation of the tool about a first angle of rotation in a first direction of rotation and about a second angle of rotation in a second direction of rotation, wherein the second direction of rotation is substantially opposite the first direction of rotation, and wherein the first angle of rotation and the second angle of rotation differ in magnitude from each other; and a mechanical gear driveable by the drive shaft arrangement and configured to convert the unidirectional rotational movement transmitted by the drive shaft arrangement into the oscillating rotational movement and to transmit the oscillating rotational movement to the output shaft.