Micro-magnetic reporter and systems
AssigneeThe Charles Stark Draper Laboratory, Inc.
InventorJonathan J. Bernstein
Life of this patent
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Abstract
The present disclosure describes system and methods for detecting and amplifying weak magnetic fields generated by anatomical structures. The disclosure describes an implantable magnetic reporter system. The magnetic reporter system includes a magnetic reporter. The magnetic reporter includes a platform coupled to a support structure by a plurality of torsional flexures. A magnet is disposed on the platform, and the magnet and platform rotate when exposed to a magnetic field. The rotation of the magnet generates a stronger magnet field that is detectable external to the patient.
Claims17
A system comprising:
- a magnetic reporter comprising:
- a platform coupled to a support structure by a plurality of torsional flexures, wherein the platform is configured to rotate about an axis;
- and
- a magnet disposed on the platform;
- a wound coil disposed proximal to the magnetic reporter;
- an energy source electrically coupled with the wound coil;
- a sensor configured to measure a physiological signal;
- a controller electrically coupled to the sensor and configured to control a flow of current between the energy source and the wound coil based on the measured physiological signal;
- and
- a hermetical package forming a seal around the magnetic reporter.
A method comprising:
- implanting a magnetic reporter system in a patient, the magnetic reporter system comprising:
- a magnetic reporter comprising a platform coupled to a support structure by a plurality of torsional flexures, wherein the platform is configured to rotate about an axis;
- and a magnet disposed on the platform;
- a wound coil disposed proximal to the magnetic reporter;
- an energy source electrically coupled with the wound coil;
- a controller to control a flow of current between the energy source and the wound coil;
- a sensor electrically coupled to the controller and configured to measure a physiological signal;
- and
- a hermetical package forming a seal around the magnetic reporter;
- monitoring a physiological parameter with the magnetic reporter system;
- measuring a magnetic field generated by the magnetic reporter system in response to a change in the monitored physiological parameter.
Dependencies are inferred from the claim text.