Patent ID: 11951041
Assignee: PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 0:
1. A positioning device for positioning an object in a positioning plane, the positioning device comprising:
two rotation drives having different diameters; and
an object receiver for receiving an object, where said object receiver is coupled to a first of said two rotation drives and said first of said two rotation drives is coupled to a second of said two rotation drives, so that said object receiver is configured to be rotated about axes of rotation of both rotation drives that are arranged parallel and offset from one another, and is adjustable in said positioning plane,
wherein said first rotation drive and/or said second rotation drive is/are ring-shaped, wherein each ring-shaped rotation drive includes:
two rings rotatable relative to one another, one of which is formed as a stator ring and another of which is formed as a rotor ring, and

wherein said first rotation drive and/or said second rotation drive is/are configured as a piezoelectric rotation drive.