IP Library › Patent Application 19240872
Patent Application
App. No. 19/240,872

SYSTEMS AND METHODS TO LOCATE AN IMPLANTABLE STIMULATOR DEVICE INSIDE A SUBJECT

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Quick Facts
Patent No.
US None
App. No.
19/240,872
Abstract

Implementations provide a method that includes: placing a controller device over a surface region of the patient where the implantable wireless stimulation device has been implanted; configuring the controller device to (i) monitor a return loss representing electrical power reflected from the implantable wireless stimulation device to the controller device; (ii) compute a first path loss metric based on a first monitored return loss when the controller device is place over a first location within the surface region; (iii) compute a second path loss metric based on a second monitored return loss when the controller device is over a second location within the surface region; and (iv) generate a feedback to an operator to indicate whether the second path loss is smaller than the first path loss such that the controller device is placed at a location with more electrical energy non-inductively transferred to the implantable wireless stimulation device.

Claims (7)

1 . A method to locate an implantable wireless stimulation device implanted inside a patient and configured to receive electrical energy wirelessly from outside the patient via non-inductive coupling, the method comprising:

placing a controller device over a surface region of the patient where the implantable wireless stimulation device has been implanted;

configuring the controller device to non-inductively couple to the implantable wireless stimulation device such that the controller device:

monitors, by modulating an impedance of a receiving non-inductive antenna on the implantable wireless stimulation device, a return loss representing electrical power reflected from the implantable wireless stimulation device to the controller device;

computes a first path loss metric based on a first monitored return loss when the controller device is place over a first location within the surface region;

computes a second path loss metric based on a second monitored return loss when the controller device is over a second location within the surface region; and

generates a feedback to an operator to indicate whether the second path loss is smaller than the first path loss such that the controller device is placed at a location with more electrical energy non-inductively transferred to the implantable wireless stimulation device.