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

Claim 0:
1. An identifying system for identifying a passive medical identification device,
wherein the passive medical identification device comprises,
a casing:
a magnetic object, wherein the magnetic object is arranged within the casing such that the magnetic object 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, 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 the identifying system to extract identification data from an induction signal,
wherein the identifying system comprises:
an excitation and induction signal coil system configured to:
a) generate a magnetic field providing a magnetic torque for rotating the magnetic object of the passive medical identification device out of its equilibrium orientation and for exciting a rotational oscillation of the magnetic object, wherein the rotational oscillation induces a response magnetic field, and
b) transduce the response magnetic field into an induction signal, and

a processor, wherein the processor is configured to receive the induction signal and to extract identification data.