Medtronic, Inc.

Other

Douglas W Brown

Andrew Thomas Fried

Venkat R Gaddam

Brett Otteson

Robert J Monson

Charles M Nowell, Jr

Robert M Schulzetenberg

Devices and methods described herein facilitate rapid wireless recharging, while reducing risk of injury, damage, or discomfort caused by heat generated during recharging. The embodiments described herein are useful in a variety of context, including for IoT devices, personal electronics, electric vehicles, and medical devices, among others.

Estimating and controlling skin temperature with low temperature thermal conductivity recharger

Devices, systems, and techniques are described to detect when a power transmitting and receiving system is in an inefficient position, which may cause a thermal response that less desirable than a more efficient position. The system may power transmitting device configured to wirelessly transfer electromagnetic energy to a power receiving device. Processing circuitry of the system may compute a target output power deliverable by the power transmitting device for a first duration and control the power transmitting device to output the target output power based in part on a heat limit. The processing circuitry may further calculate an energy transfer efficiency to the power receiving unit, update an adjustment factor based on the calculated energy transfer efficiency, and apply the adjustment factor to the heat limit for a subsequent duration.

Implant location detection and adaptive temperature control

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.

Recharge algorithm for accurate heat control estimation in presence of ferrite and electronics

A product line of specialty fishing floats&#x2014;floats designed specifically for overcast days and for night-fishing, and designed to work in conjunction with chemically luminescent 'light sticks' to illuminate the strike-indicating float and help ensure that the angler will hook the striking fish.

Growing community of inventors

Shakopee, MN, United States of America

Douglas W Brown