Magnetic Resonance-Compatible Stepper Motor for use in a Magnetic Resonance Apparatus with a Brake Unit
AssigneeSiemens Healthineers AG
InventorsJohann Sukkau, Jakob Grün
Life of this patent
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Abstract
The disclosure relates to a magnetic resonance-compatible stepper motor for use in a medical magnetic resonance apparatus, configured to implement a dominant or stray component of a basic magnetic field of the magnetic resonance apparatus as a stator. The magnetic resonance-compatible stepper motor also comprises a drive shaft, and at least two rotatably mounted motor coil elements for generating a drive torque of the stepper motor. The drive torque is transmissible by means of the drive shaft, and the stepper motor has a brake unit which is designed to lock a position of the drive shaft.
Claims15
A magnetic resonance-compatible stepper motor for use in a medical magnetic resonance apparatus, the stepper motor comprising:
- a drive shaft;
- two rotatably mounted motor coil elements configured to generate a drive torque of the stepper motor ;and
- a brake unit configured to lock a position of the drive shaft,
- wherein the drive torque is transmittable via the drive shaft, and
- wherein the magnetic resonance-compatible stepper motor is configured to use a basic magnetic field of the magnetic resonance apparatus as a stator of the stepper motor.
A magnetic resonance apparatus, comprising:
- a patient reception area configured to receive a patient for a magnetic resonance examination;
- and
- a magnetic resonance-compatible stepper motor disposed within the patient reception area, the stepper motor comprising:
- a drive shaft;
- two rotatably mounted motor coil elements configured to generate a drive torque of the stepper motor;
- and
- a brake unit configured to lock a position of the drive shaft,
- wherein the drive torque is transmittable via the drive shaft, and
- wherein the magnetic resonance-compatible stepper motor is configured to use a basic magnetic field of the magnetic resonance apparatus as a stator of the stepper motor.
Dependencies are inferred from the claim text.