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Assessment of Electromagnetic Interference with Active Cardiovascular Implantable Electronic Devices (CIEDs) Caused by the Qi A13 Design Wireless Charging Board.

Seckler T, Jagielski K, Stunder D - Int J Environ Res Public Health (2015)

Bottom Line: To do so the voltage induced in CIEDs by Qi A13 design magnetic fields were measured and compared with the performance limits set by ISO 14117.With the Qi‑A13‑Board in power transfer mode 10.8% and in pinging mode 45.7% (2.2% at 10 cm distance) of the performance limit were reached at maximum.In neither of the scrutinized cases, did the voltage induced by the Qi‑A13‑Board exceed the performance limits.

View Article: PubMed Central - PubMed

Affiliation: The Research Center for Bioelectromagnetic Interaction (FEMU), Institute and Out-patient Clinic of Occupational Medicine, RWTH Aachen University, Pauwelsstr 30, 52074 Aachen, Germany. seckler@femu.rwth-aachen.de.

ABSTRACT
Electromagnetic interference is a concern for people wearing cardiovascular implantable electronic devices (CIEDs). The aim of this study was to assess the electromagnetic compatibility between CIEDs and the magnetic field of a common wireless charging technology. To do so the voltage induced in CIEDs by Qi A13 design magnetic fields were measured and compared with the performance limits set by ISO 14117. In order to carry this out a measuring circuit was developed which can be connected with unipolar or bipolar pacemaker leads. The measuring system was positioned at the four most common implantation sites in a torso phantom filled with physiological saline solution. The phantom was exposed by using Helmholtz coils from 5 µT to 27 µT with 111 kHz sine‑bursts or by using a Qi A13 design wireless charging board (Qi‑A13‑Board) in two operating modes "power transfer" and "pinging". With the Helmholtz coils the lowest magnetic flux density at which the performance limit was exceeded is 11 µT. With the Qi‑A13‑Board in power transfer mode 10.8% and in pinging mode 45.7% (2.2% at 10 cm distance) of the performance limit were reached at maximum. In neither of the scrutinized cases, did the voltage induced by the Qi‑A13‑Board exceed the performance limits.

No MeSH data available.


Related in: MedlinePlus

Pinging sequence recorded during pinging mode of the Qi-A13-Board. The amplitude is normalized to one.
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ijerph-12-05886-f003: Pinging sequence recorded during pinging mode of the Qi-A13-Board. The amplitude is normalized to one.

Mentions: Figure 3 shows a typical pinging sequence recorded during pinging mode of the Qi-A13-Board. The pinging sequence had a length of 3200 ms and consisted of two or three consecutive sine-bursts with a frequency of 111 kHz. The bursts had a width of 66 ms and a 32 ms pause in between. The pause between the consecutive bursts varied from 430 ms to 840 ms during our recordings. The burst amplitudes varied depending on which of the three coils on the Qi-A13-Board was driven. For the evaluation of the induced voltage (cf.Section 3.3) always the burst with the highest amplitude was chosen.


Assessment of Electromagnetic Interference with Active Cardiovascular Implantable Electronic Devices (CIEDs) Caused by the Qi A13 Design Wireless Charging Board.

Seckler T, Jagielski K, Stunder D - Int J Environ Res Public Health (2015)

Pinging sequence recorded during pinging mode of the Qi-A13-Board. The amplitude is normalized to one.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4483677&req=5

ijerph-12-05886-f003: Pinging sequence recorded during pinging mode of the Qi-A13-Board. The amplitude is normalized to one.
Mentions: Figure 3 shows a typical pinging sequence recorded during pinging mode of the Qi-A13-Board. The pinging sequence had a length of 3200 ms and consisted of two or three consecutive sine-bursts with a frequency of 111 kHz. The bursts had a width of 66 ms and a 32 ms pause in between. The pause between the consecutive bursts varied from 430 ms to 840 ms during our recordings. The burst amplitudes varied depending on which of the three coils on the Qi-A13-Board was driven. For the evaluation of the induced voltage (cf.Section 3.3) always the burst with the highest amplitude was chosen.

Bottom Line: To do so the voltage induced in CIEDs by Qi A13 design magnetic fields were measured and compared with the performance limits set by ISO 14117.With the Qi‑A13‑Board in power transfer mode 10.8% and in pinging mode 45.7% (2.2% at 10 cm distance) of the performance limit were reached at maximum.In neither of the scrutinized cases, did the voltage induced by the Qi‑A13‑Board exceed the performance limits.

View Article: PubMed Central - PubMed

Affiliation: The Research Center for Bioelectromagnetic Interaction (FEMU), Institute and Out-patient Clinic of Occupational Medicine, RWTH Aachen University, Pauwelsstr 30, 52074 Aachen, Germany. seckler@femu.rwth-aachen.de.

ABSTRACT
Electromagnetic interference is a concern for people wearing cardiovascular implantable electronic devices (CIEDs). The aim of this study was to assess the electromagnetic compatibility between CIEDs and the magnetic field of a common wireless charging technology. To do so the voltage induced in CIEDs by Qi A13 design magnetic fields were measured and compared with the performance limits set by ISO 14117. In order to carry this out a measuring circuit was developed which can be connected with unipolar or bipolar pacemaker leads. The measuring system was positioned at the four most common implantation sites in a torso phantom filled with physiological saline solution. The phantom was exposed by using Helmholtz coils from 5 µT to 27 µT with 111 kHz sine‑bursts or by using a Qi A13 design wireless charging board (Qi‑A13‑Board) in two operating modes "power transfer" and "pinging". With the Helmholtz coils the lowest magnetic flux density at which the performance limit was exceeded is 11 µT. With the Qi‑A13‑Board in power transfer mode 10.8% and in pinging mode 45.7% (2.2% at 10 cm distance) of the performance limit were reached at maximum. In neither of the scrutinized cases, did the voltage induced by the Qi‑A13‑Board exceed the performance limits.

No MeSH data available.


Related in: MedlinePlus