Posts Tagged ‘medical equipment’

These Tiny Magnetometers Detect Fields Generated by Human Heart!

Sunday, October 24th, 2010


How can i imagine this tiny and ‘poor’ little thing can help a human life? hmm… I’m still thinking.

At the National Institute of Standards and Technology (NIST) scientists have been working on microfabricated atomic magnetometers capable of detecting faint magnetic fields. The devices, about 1cm3 in size, were taken to the Physikalisch Technische Bundesanstalt (PTB) in Berlin, Germany where supposedly resides the most magnetically isolated building in the world. Using the tiny magnetometers, investigators were able to detect the magnetic signature of human heartbeats, perhaps opening up the possibility for a new modality to complement ECG.

Courtesy of

Wireless and real-time health tracker

Tuesday, January 19th, 2010


A company calling its collective group of body monitoring products the WIN Human Recorder system has released a new device called the HRS-I. Designed to measure and record a person’s electrocardiographic signals, body surface temperature and overall body movements, the tiny unit can easily be worn under your shirt as you attend to your daily business.

The device communicates wirelessly with a remote base and can last on a single charge for up to three days. Targeted toward companies working to monitor employee health, the HRS-I can be purchased for just 30,000 yen ($331) and the monitoring service costs just 10,000 yen ($110) per month.

Via Nikkei

RFID may cause interference with medical equipments

Saturday, June 28th, 2008

Certain types of radio frequency identification tags can cause electromagnetic interference with medical equipment, according to a report in the Journal of the American Medical Association. The report cautions facilities to check for interference from an RFID system before deploying it.

The study examined the impact of 125-kHz and 868-MHz frequencies on medical equipment. The 125-kHz is the technology used in proximity cards while the 868-MHz is a long-range RFID tag. Contactless smart cards, which use the 13.56 MHz, were not mentioned in the report.

In 123 tests, RFID induced 34 incidents of interference: 22 were classified as hazardous, two as significant, and ten as light. The 868-MHz RFID signal induced a higher number of incidents, 26 incidents in 41 EMI tests. Compared with the 125-kHz RFID signal which cause eight incidents in 41 tests. The median distance between the RFID reader and the medical device in all EMI incidents was 30 centimeters.

Read a summary of the report here.