Spinal cord stimulator system
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Mar 10, 2015
filing date -
Mar 15, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A wireless charger for inductively charging a rechargeable battery of an implantable pulse generator (IPG) is provided. The charging coil in the charger is wirelessly coupled to a receiving coil of the IPG to charge the rechargeable battery. The alignment circuit continuously detects a reflected impedance of the charging coil through a reflected impedance sensor, and controls a vibrator to output a tactile signal which is indicative of the alignment of the charging coil to the receiving coil based on the detected reflected impedance. Advantageously, the tactile feedback to the patient provides an optimal way to indicate the extent of the charger's alignment with the IPG.
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