Medtronic, Inc.

Yu Wang

William C Phillips

David P Olson

Garrett R Sipple

George C Rosar

Gregory John Haubrich

John J Grevious

Nicholas C Wine

Michele A Waldner

David W Lee

Far field telemetry operations are conducted between an external device and an implantable medical device while power is being transferred to the implantable medical device for purposes of recharging a battery of the implantable medical device. The far field operations may include exchanging recharge information that has been collected by the implantable medical device which allows the external device to exercise control over the recharge process. The far field operations may include suspending far field telemetry communications for periods of time while power continues to be transferred where suspending far field telemetry communications may include powering down far field telemetry communication circuits of the implantable medical device for periods of time which may conserve energy. The far field operations may further include transferring programming instructions to the implantable medical device.

Far field telemetry operations between an external device and an implantable medical device during recharge of the implantable medical device via a proximity coupling

A device includes an antenna, a parasitic element, and a telemetry control module. The parasitic element modifies a radiation pattern of the antenna. The parasitic element has an impedance value that is adjustable, and the radiation pattern of the antenna depends on the impedance value of the parasitic element. The telemetry control module is configured to transmit data to a medical device using the antenna, receive data from the medical device using the antenna, and detect communication errors using data that is received from the medical device. Additionally, the telemetry control module is configured to adjust the impedance value of the parasitic element in response to detection of communication errors.

Wireless communication device for medical telemetry

An implantable medical device is provided having circuitry to control operation of the implantable medical device and a receiver configured to receive communication signals on an allocated band of a plurality of communication channels separated in frequency by a channel spacing. The receiver includes an oscillator and a signal source configured to apply a quench signal to the oscillator. The quench signal has a frequency corresponding to the channel spacing. The receiver is enabled to receive on all of the plurality of communication channels simultaneously by applying the quench signal.

Medical device communication system and method

A medical device communication system transmitter may include a resonator coupled to a local oscillator for stabilizing an operating frequency of the local oscillator. A control device of the transmitter receives an open-loop control signal, and the local oscillator and the control device are configured to generate a direct modulated radio frequency transmission signal in response to the open-loop control signal.

A device includes a housing, a radio-frequency (RF) antenna, a ground plane, an inductive telemetry antenna, and a processing module. The RF antenna is associated with the housing. The ground plane of the RF antenna is within the housing. The inductive telemetry antenna is within the housing and is disposed over a portion of the ground plane. The processing module is within the housing and is configured to communicate with a medical device using at least one of the RF antenna and the inductive telemetry antenna.

Converter device for communicating with multiple medical devices

External instruments and implantable medical devices communicate using modulation parameter settings that may be adapted during communication sessions based on a quality of the wireless communications link. An analysis of the quality of the link is performed and a request to change modulation parameters is sent to one of the devices by the other. The analysis may be based on measuring noise and interference during idle communication frames. The devices may then change the modulation parameter settings, for the uplink, downlink, or both. The devices may also employ a recovery operation to revert back to the previous modulation parameter settings if the transmissions are not properly received using the changed modulation parameter settings. The modulation parameter settings may include modulation type, modulation symbol rate, and the like.

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Plymouth, MN, United States of America

Yu Wang