Aesculap Ag

Aesculap Ag & Co Kg

Harald Konrath

Martin Machill

Juergen Schneider

Roland Alois Hoegerle

Uwe Schaz

Thomas Kahler

Ronald Hafner

Ernst Moosmann

Jürgen Schneider

Timo KLEINWÄCHTER

Roland Alois HÖGERLE

A drive control device for a surgical motor system includes a motor control unit for controlling an electric motor in an open and/or closed loop, the electric motor driving a surgical tool. In order to use the drive control device for the most varied application cases, a parameter specification device is provided upstream of the motor control unit. The parameter specification device determines the current medical application on the basis of a detected state or state history of the surgical motor system, in particular of the electric motor, selects a control mode which is suitable for the medical application, and gives the motor control unit the open or closed loop parameters that the open or closed loop control profile of the electric motor corresponds to the selected control mode.

Drive control device and drive control method for a surgical motor system

A surgical motor control device for controlling a surgical drive unit comprises a sensorless electric motor with M motor windings. The motor control device is configured to perform a method for controlling the drive unit. The motor control device be configured to control the drive unit using a multiphase PWM method. An improved method for controlling a surgical drive unit and an improved surgical drive system are also proposed.

Surgical motor control device, surgical drive system and method for controlling a surgical drive unit

To improve a surgical machine with a sensorless electric motor comprising a rotor and at least two motor windings, and with a motor controller for controlling and/or regulating the electric motor, so that the electric motor is operable with optimum efficiency at low rotational speeds and a starting of the motor in accordance with the purpose, also under load, is enabled, it is proposed that a space vector pulse width modulation (SVPWM) method for controlling and/or regulating the electric motor, in which all motor windings are able to be simultaneously supplied with electric current, be performable with the motor controller. A method for controlling and/or regulating a surgical machine is also proposed.

Surgical machine and method for controlling and/or regulating a surgical machine

To improve a surgical machine with an electric motor comprising a rotor and a plurality of motor windings, and with a motor controller for controlling and/or regulating the electric motor so that, in particular, the efficiency of the electric motor can be optimized essentially over the entire rotational speed range, it is proposed that the entire rotational speed range of the surgical machine be divided into at least one lower rotational speed range for low rotational speeds and at least one upper rotational speed range for higher rotational speeds than those in the at least one lower rotational speed range, that the motor controller be so designed that a first controlling and/or regulating method for controlling and/or regulating the electric motor is performable in the at least one lower rotational speed range, and that a second controlling and/or regulating method for controlling and/or regulating the electric motor is performable in the at least one upper rotational speed range.

Surgical machine and method for operating a surgical machine

Growing community of inventors

Rottenburg-Hailfingen, Germany

Harald Konrath