Spinal cord stimulator system
First Claim
1. A method for a wireless charger to automatically tune an optimum frequency to inductively charge a rechargeable battery of an implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body, the method comprising:
- applying a plurality of charging frequencies in a selected frequency range to a charging coil;
detecting a reflected impedance of the charging coil for each applied charging frequency; and
selecting an optimum frequency of the charging coil.
3 Assignments
0 Petitions
Accused Products
Abstract
A wireless charger for automatically tuning an optimum frequency to inductively charge a rechargeable battery of an implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body is provided. The charging coil in the charger is wirelessly coupled to a receiving coil of the IPG to charge the rechargeable battery. An optimization circuit detects a reflected impedance of the charging coil through a reflected impedance sensor, and select an optimum frequency of a charging signal supplied to the charging coil based on the detected reflected impedances of a plurality of charging frequencies in a selected frequency range. Advantageously, the optimum charging frequency provides a more efficient way to charge the IPG'"'"'s rechargeable battery.
1 Citation
20 Claims
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1. A method for a wireless charger to automatically tune an optimum frequency to inductively charge a rechargeable battery of an implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body, the method comprising:
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applying a plurality of charging frequencies in a selected frequency range to a charging coil; detecting a reflected impedance of the charging coil for each applied charging frequency; and selecting an optimum frequency of the charging coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for a wireless charger to automatically tune an optimum frequency to inductively charge a rechargeable battery of an implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body, the method comprising:
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applying a plurality of charging frequencies in a selected frequency range to a charging coil; detecting a reflected impedance of the charging coil for each applied charging frequency; selecting an optimum frequency of the charging coil via an optimization circuit, wherein the optimization circuit comprises a optimization software, a processor, and a reflected impedance sensor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification