Patent ID: 11921183
Assignee: KING'S COLLEGE LONDON
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A magnetic resonance (MR) compatible transducer system for magnetic resonance elastography, comprising:
a rotationally mounted eccentric mass arranged to rotate within a container having at least one outer surface that in use transmits vibrations to contacting objects; and
a flexible drive shaft functionally connected to the rotationally mounted eccentric mass and arranged to impart rotational energy to the rotationally mounted eccentric mass, wherein the rotationally mounted eccentric mass, the container, and the flexible drive shaft are made from MR compatible material, and wherein the flexible drive shaft comprises a flexible rotating core within a flexible non-rotating sheath,
wherein the MR compatible transducer is configured to determine the rotational position of the rotationally mounted eccentric mass about its rotational axis, whereby a phase of vibrations is maintained and matched between subsequent uses of the MR compatible transducer.