Patent ID: 10008960

Abstract:
Ultrasonic actuator device (100) includes actuator arm arrangement (10) including first and second actuator sections (11,12), wherein the first section is arranged for coupling with support structure (50) and the second section is movable relative to the first section, and ultrasonic driver device (20) including at least one ultrasonic driver unit (21-28) coupled with at least one of first and second sections for driving actuator arm arrangement (10) and for providing movement of the second section relative to the first section, and wherein actuator arm arrangement (10) is movable with at least two degrees of freedom and the at least one ultrasonic driver unit includes an array of oscillating elements being arranged for creating an acoustic stream in an adjacent medium in response to application of ultrasound. Furthermore, an operational instrument including at least one ultrasonic actuator device (100) and a method of using the device are described.