Characteristics of Telemetry Interference with Pacemakers Caused by Digital Media Players

Brunett, J.D.; Thaker, Jay P.; Patel, Mehul; Liepa, Valdis V.; Jongnarangsin, Krit; Thakur, Ranjan K.

doi:10.1111/j.1540-8159.2009.02672.x

Cited by 9 publications

(1 citation statement)

References 11 publications

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“…Traditionally, the device communicates with an external programmer through near field magnetic coupling. This is mainly done by using coils at low frequencies at several kilohertz [1], [2]. In 1999, the U.S. Federal Communications Commission (FCC) allocated the Medical Implant Communication Service (MICS) band (402 -405 MHz) to permit the use of a mobile radio device for data communication for implantable devices as a response to petition from Medtronic [3].…”

Section: Introductionmentioning

confidence: 99%

Feasibility Study of Using the Housing Cases of Implantable Devices as Antennas

et al. 2016

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A novel antenna design for implantable pacemakers is proposed. The housing of a pacemaker is utilized as an antenna to cover both the 402-405 MHz Medical Implant Communication Service band and the 433-MHz Industrial, Scientific and Medical band. This is achieved by exploiting radiating characteristic current modes of the housing case. These modes are excited using a capacitive coupling element with the help of a matching circuit. The radiation pattern of this antenna is optimized to be in a desirable direction away from the body (off-body direction). The ability of the proposed antenna for communications is demonstrated using a transceiver and a base station at 433 MHz. A communication range of 1 m is established when a transmitter with the proposed antenna is implanted in a rabbit and the power fed by the transceiver to the antenna is 25 µW. A longer range of up to 19 m can be established with the maximum allowable transmit power within the safety limits. Furthermore, the far field wireless power transfer through the proposed antenna is investigated by experiment. A received power of up to 22.38 µW by the proposed antenna is demonstrated when an equivalent isotropically radiated power of 140 mW is transmitted 1 m away from a transmitting antenna. From the same transmitting antenna in the same distance, a power of 4 mW can be received when the transmit power is within safety limits. This power can be used to recharge a small battery or a capacitor, which can potentially cover the communication power consumption of the pacemaker and hence extend the life span of the primary battery.INDEX TERMS Housing antenna, MICS band antenna, pacemaker.

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Section: Introductionmentioning

confidence: 99%