Hi Amund, I read your email (below). I'm no medical device expert; but I'm wondering if the magnetic strength limit was set so high due to MRI (Magnetic Resnonance Imaging) devices. My understanding is that MRI devices produce HUGE magnetic field levels. According to a recent newspaper story that I read, these fields are strong enough to draw a metal oxygen tank across the room to the MRI machine.
Is there any chance that the device in question could be used around an MRI? It would be a real bummer if someone's infusion pump suddenly changed its run rate due to a nearby magnetic field. Could that be what the standard is safeguarding against? Any medical device gurus care to comment? Chris Maxwell | Design Engineer - Optical Division email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024 NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA web www.nettest.com | tel +1 315 797 4449 | > -----Original Message----- > From: am...@westin-emission.no [mailto:am...@westin-emission.no] > Sent: Sunday, April 28, 2002 3:40 PM > To: emc-p...@majordomo.ieee.org > Subject: IEC 60601-2-24 / Magnetic Field > > > > Hi all, > > A colleague was checking the IEC 60601-2-24:98 and found the Magnetic > Field > Req't (paragraph 36.202.6) far too high: 400 Ampere-per-meter! I'd > like to > check this requirement for its correctness or history with backgrounds > for > such a demand. I know that 3A/m, 10A/m and 30A/m are often used, but > 400A/m > ..... > > Can anybody help? > > Best regards > Amund Westin, Oslo/Norway > > PS: IEC 60601-2-24:98 - "Medical electrical equipment - Part 2-24: > Particular requirements for the safety of infusion pumps and > controllers" > > > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
