RECHARGE ALGORITHM FOR ACCURATE HEAT CONTROL ESTIMATION IN PRESENCE OF FERRITE AND ELECTRONICS

A method for controlling charging a power source of an implantable medical device (IMD) in a patient including determining a power being delivered to a primary coil of an external charging device for recharging, determining an estimated power delivered to the IMD power source an estimated heat gener...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Otteson, Brett, Gaddam, Venkat, Fried, Andrew, Brown, Douglas
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELECTROTHERAPY GENERATION HUMAN NECESSITIES HYGIENE MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE RADIATION THERAPY SYSTEMS FOR STORING ELECTRIC ENERGY ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:	A method for controlling charging a power source of an implantable medical device (IMD) in a patient including determining a power being delivered to a primary coil of an external charging device for recharging, determining an estimated power delivered to the IMD power source an estimated heat generated by the primary coil based on a resistance of the primary coil determined as function of at least one of a recharge frequency, a temperature of the primary coil, and a current supplied to the primary coil, calculating an estimated heat generated by the IMD by subtracting the estimated heat generated by the primary coil and the estimated power delivered stored by the rechargeable power source from the power being delivered to a primary coil; and controlling based on the heat generated by the IMD, the power being delivered by the primary coil of the external charging device.