Electromagnetic Interference in the Hospital

Paperman, W. David; David, Yadin; Hibbetts, James

doi:10.1016/b978-012226570-9/50069-7

Cited by 3 publications

(2 citation statements)

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“…First, high-voltage sinusoidal bursts may be easier to generate than high-voltage bipolar square pulses, thanks to resonant circuit topologies (Dieckerhoff et al 1999, Yong-Nong andChih-Ming 2013). Second, sinusoidal bursts are less likely to cause electromagnetic compatibility issues because of their limited frequency spectrum (Paperman et al 2009). Considering these two potential advantages, we decided to perform the present experimental study.…”

Section: Avoiding Neuromuscular Stimulation In Liver Irreversible Ele...mentioning

confidence: 99%

Avoiding neuromuscular stimulation in liver irreversible electroporation using radiofrequency electric fields

et al. 2018

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Electroporation based treatments typically consist in applying high voltage dc pulses. As an undesired side effect, these dc pulses cause electrical stimulation of excitable tissues such as motor nerves. In the present in vivo study, it was explored the use of bursts of sinusoidal voltage in the frequency range from 50 kHz to 2 MHz to induce irreversible electroporation (IRE) whilst avoiding neuromuscular stimulation. Series of 100 dc pulses or sinusoidal bursts, both with an individual duration of 100 µs, were delivered to rabbit liver through thin needles in a monopolar electrode configuration and thoracic movements were recorded with an accelerometer. Tissue samples were harvested three hours after treatment and later postprocessed to determine the dimensions of the IRE lesions. Thermal damage due to Joule heating was ruled out via computer simulations. Sinusoidal bursts with a frequency equal or above 100 kHz did not cause thoracic movements and induced lesions equivalent to those obtained with conventional dc pulses when the applied voltage amplitude was sufficiently high. IRE efficacy dropped with increasing frequency. For 100 kHz bursts, it was estimated that the electric field threshold for IRE is about 1.4 kV/cm whereas that of dc pulses is about 0.5 kV/cm.

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Section: Avoiding Neuromuscular Stimulation In Liver Irreversible Ele...mentioning

confidence: 99%

Avoiding neuromuscular stimulation in liver irreversible electroporation using radiofrequency electric fields

et al. 2018

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“…The risks of electromagnetic interference (EMI) to active medical devices is well recognized [1,2] and partially addressed through appropriate design and testing to consensus standards such as IEC 60601-1-2 [3] for medical electrical equipment, ISO 14708-1 [4] for active implantable medical devices, and ANSI/AAMI PC69 [5] for implantable cardiac pacemakers and implantable cardioverter defibrillators. However, these standards concentrate on EMC aspects of the medical device and its function and pay minimal attention to the incorporation of wireless technology.…”

Section: Emc and Wireless Technology In Healthcarementioning

confidence: 99%

EMC and wireless healthcare

Witters¹,

Seidman²,

Bassen³

2010

2010 Asia-Pacific International Symposium on Electromagnetic Compatibility

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Electromagnetic compatibility (EMC) is a critical part of addressing the risks related to the effects of electromagnetic interference (EMI) on active medical devices exposed to emissions from wireless technology. In addition, for wireless technology in healthcare to be safe, effective, reliable, and secure specific wireless issues must also be addressed including quality of service, coexistence with other wireless equipment, data integrity, and wireless security. Unfortunately, these issues pose risks that are poorly addressed in present medical devices standards or other consensus documents. This paper discusses risks for wireless technology in healthcare with examples from research examining the effects of emissions from wireless technology such as RFID on implantable cardiac pacemakers and defibrillators and EMC with other emitters. The paper goes into ways that the risks, including EMI, can be addressed and makes the case for substantive engagement by stakeholders, including the IT community, wireless developers, and clinical organizations. There is clear need to develop unbiased, consensus information and tools that will set the pathways and tools needed to meet the risks and challenges for widespread incorporation of wireless technology in healthcare.

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Safety Program, Hospital

Dyro¹

2006

Encyclopedia of Medical Devices and Instrumentation

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This article describes the broad scope of safety issues in the hospital and recommends ways in which hospitals should address these issues. Particular emphasis is placed on medical devices and instrumentation and how they interrelate with the hospital’s environment, facility, patients and device users and other personnel. Medical device safety depends in large part upon a comprehensive medical device technology management program, which includes elements ranging from technology assessment, evaluation, and procurement to device replacement planning and includes such components as user training, medical device incident investigation, and device quality assurance. The clinical engineer by education, training and experience is shown to be ideally suited to implement and execute a technology management program and to lead in the effort to assure hospital‐wide patient safety. Available resources are described including web‐based training, distance learning, standards, publications, and professional organizations.

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Electromagnetic Interference in the Hospital

Cited by 3 publications

References 0 publications

Avoiding neuromuscular stimulation in liver irreversible electroporation using radiofrequency electric fields

Avoiding neuromuscular stimulation in liver irreversible electroporation using radiofrequency electric fields

EMC and wireless healthcare

Safety Program, Hospital

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