Circuit protection provider Littelfuse, Inc. has released the 450W SD05 unidirectional and SD05C bidirectional series of silicon-based TVS diode arrays designed to replace multilayer varistors (MLVs) as ESD protection. According to the company, “the low dynamic resistance [of the devices] provides up to a 50 percent reduction in clamping voltage when compared with competing … [Read more...]
New Controversial Report Suggests Evidence for Electromagnetic Field Health Risks Has Increased
A new report on the health effects of electromagnetic fields and radio frequency radiation from power lines, electrical wiring, appliances and hand-held electronic devices has been published by the BioInitiative Working Group, suggesting that evidence for health risks has increased since 2007. The BioInitiative Working Group grew out of the Bioelectromagnetics Society’s 2006 … [Read more...]
A/D Converter Boards for High Signal-to-Noise Ratio Observation in Multiple Time-Aligned Channels
Data acquisition and synthesis solutions company Ultraview Corporation has released the ULTRADYNE16-250Mx2AVE-8GB-50T/155T and ULTRADYNE16-250x4AVE-8GB-50T/155T 16-bit 4-channel 250-megasample-per-second A/D converter boards for medical, military and scientific applications. According to the company, the A/D converter boards are designed for applications in which signals on … [Read more...]
Filter for Interference Suppression in Test and Measurement, Medical and Industrial Equipment
Schurter Inc., a distributor of EMC products and components, has announced the 5123 series filter for use with interference suppression in test and measurement, medical and industrial equipment. The 5123 series filter is an upgrade of the previous 5120 series filter. According to a statement from the company, the new 5123 series filter is designed for nominal currents up to … [Read more...]
Debate Over Harmful Effects of Radio Waves Continues
Though the level of general concern about possible harmful effects from radio frequency radiation given off by mobile phones, wireless networks and smart meters has decreased in recent years, a small percentage of the population remains convinced that the electromagnetic radiation from wireless technology is dangerous. Patients with one condition, electromagnetic … [Read more...]
Upcoming Revision to the Medical Standard
We asserted last time that the existing amplifiers in the current test set up might be used to generate the higher stress levels if the test distance was reduced from 3 meters to 1 meter. As a reminder, we argued that testing at 1 meter means testing takes place in the near field as is the case for the threats faced by medical equipment (nearby cellphones etc.). Using the same … [Read more...]
Patent Awarded for New Method of Preventing RFID Tag Tampering
Canadian company Guard RFID Solutions has been granted a patent for a new method of determining and preventing RFID tag tampering for use in hospitals. Children staying overnight in a hospital pediatric ward are typically provided with an RFID tag that automatically triggers alarms and engages door locks, preventing the child from being forcefully removed from the area. While … [Read more...]
Wireless Medical Devices Face Security Concerns
A report issued recently by the U.S. Government Accountability Office (GAO) highlighted the growing use of wireless technology in complex medical devices and the concerns over adequate protection for the devices against security risks that could affect their safety and effectiveness. The report called on the Food and Drug Administration (FDA) to tighten security requirements of … [Read more...]
Tiny Pacemaker Powered by Radio Waves
In a paper published in Applied Physics Letters, Stanford University researchers demonstrated the feasibility of transferring power wirelessly to a tiny cardiac device implanted five centimeters inside the chest on the surface of the heart—a depth once considered unreachable for wireless power transmission. The device is contained in a cube measuring 0.8 mm per side and … [Read more...]
Guide to Risk Management Standards for Medical IT-Networks
IEC/TR 80001-2-1:2012(E) is a step-by-step guide to help in the application of risk management when creating or changing a medical IT-network. It provides easy to apply steps, examples and information helping in the identification and control of risks. All relevant requirements in IEC 80001-1:2010 are addressed and links to other clauses and subclauses of IEC 80001-1 are … [Read more...]
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