Patent ID: 11883248
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 20:
21. A passive medical identification device, comprising:
a casing,
a magnetic object, wherein the magnetic object is arranged within the casing such that the magnetic object is rotatable out of an equilibrium orientation when an external magnetic torque is acting on the magnetic object, and
a restoring torque provider, wherein the restoring torque provider is configured to provide a restoring torque to force the magnetic object back into the equilibrium orientation when the external magnetic torque has rotated the magnetic object out of the equilibrium orientation, in order to allow for a rotational oscillation of the magnetic object excited by the external magnetic torque,
wherein the rotational oscillation generates a response magnetic signal, and
wherein the casing, magnetic object and the restoring torque provider are arranged such that at least one property of the response magnetic signal is suitable to be used by an identifying system to extract identification data from an induction signal.