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US 9,435,830 B2Granted
Implantable medical device depth estimation
AssigneeCyberonics, Inc.
InventorHimanshu Joshi
Life of this patent
Estimating the term…
Abstract
A method includes applying a signal to a primary coil of an external charging device. The signal causes the primary coil to inductively couple to a secondary coil of an implantable medical device that is implanted within tissue of a patient. The method also includes measuring a current at the primary coil. The method further includes estimating a depth of the implantable medical device within the tissue of the patient based on the measured current.
Claims20
A method comprising:
- applying a signal to a primary coil of an external charging device, wherein the signal causes the primary coil to inductively couple to a secondary coil of an implantable medical device that is implanted within tissue of a patient;
- measuring a current at the primary coil;
- estimating a depth of the implantable medical device within the tissue of the patient based on the measured current;
- and
- causing a configuration of a matching network of the implantable medical device to be adjusted by a processor in the implantable medical device, based on the depth.
2 more elements
A device comprising:
- a primary coil to inductively couple to a secondary coil of an implantable medical device;
- a current measurement device coupled to the primary coil that measures a current applied to the primary coil while the secondary coil is inductively coupled to the primary coil;
- a processor coupled to the current measurement device, the processor programmed to:
- estimate a depth of the implantable medical device within tissue of a patient based on the measured current;
- and
- cause settings for a matching network of the implantable medical device to be adjusted based on the depth.
3 more elements
An implantable medical device comprising:
- a secondary coil to inductively couple to a primary coil of a second device;
- a receiver to receive depth data from the second device, wherein the depth data indicates a depth of the implantable medical device within tissue of a patient;
- a matching network coupled to the receiver;
- and
- a processor coupled to the matching network programmed to adjust a configuration of the matching network based on the depth data.
2 more elements
Dependencies are inferred from the claim text.