I'm a computer tech at a hospital. I'm working with our BioMed people
to try and find a solution to a problem.
We have a system for doing EEGs that uses a standard IBM compatible PC
and Monitor for the data collection and review.
My BioMed people tell me the Federal Regs say leakage current on a device
that could come in contact with a patient cannot exceed 300 microAmps. The
monitor is leaking 290 microAmps by itself. The PC, amplifiers, and other
devices combined are well with in this limit. Only the monitor is way out
there. If we can find a monitor that is leaking less than 100 microAmps I
think we would be OK.
Do any of you know of a large monitor, 17 to 21 inch, that is designed
to have low leakage current? Or have you dealt with this situation some
other way? Any suggestions would be apprecitated.
Thanks,
Chris Jones
Work: clj...@jpmc.org
Home: clj...@ionet.net
Take care, Michel.
Chris Jones wrote:
Hi Chris
I am reading your posting on a 17 inch LCD monitor - how about that as a
solution?
Ian Molesworth
As soon as you upgrade, or get a new piece of equipment, or perhaps
wire things differently, you (or your patient!) could be in trouble.
If your EEG input amplifiers aren't isolated, then you should upgrade
them. Possibly no more expensive than a 17" LCD monitor. Then you
can have complete freedom on the other side of the isolation barrier
to use any PC, monitor, whatever, and your patient will be in a
safer situation!
-frank
>I'm working with our BioMed people
>to try and find a solution to a problem.
>
Hello,
I don't know monitor manufacturers will publish leakage currents on their
specifications.Anyway you can check this thing with one company who is
specialised in Medical monitors
Clinton Electronics Corporation
Minnesota USA
Tel: 612-753-8452
e-mail: HRdi...@aol.com
Regards
SRI
In article <7c224g$me4$1...@ionews.ionet.net>,
"Chris Jones" <clj...@ionet.net> wrote:
> Hello,
>
> I'm a computer tech at a hospital. I'm working with our BioMed people
> to try and find a solution to a problem.
>
> We have a system for doing EEGs that uses a standard IBM compatible PC
> and Monitor for the data collection and review.
>
> My BioMed people tell me the Federal Regs say leakage current on a device
> that could come in contact with a patient cannot exceed 300 microAmps. The
> monitor is leaking 290 microAmps by itself. The PC, amplifiers, and other
> devices combined are well with in this limit. Only the monitor is way out
> there. If we can find a monitor that is leaking less than 100 microAmps I
> think we would be OK.
>
> Do any of you know of a large monitor, 17 to 21 inch, that is designed
> to have low leakage current? Or have you dealt with this situation some
> other way? Any suggestions would be apprecitated.
>
> Thanks,
>
> Chris Jones
> Work: clj...@jpmc.org
> Home: clj...@ionet.net
>
>
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Or am I missing something?
> "Chris Jones" <clj...@ionet.net> wrote:
> > Hello,
> > We have a system for doing EEGs that uses a standard IBM compatible PC
> > and Monitor for the data collection and review.
> >
> > My BioMed people tell me the Federal Regs say leakage current on a device
> > that could come in contact with a patient cannot exceed 300 microAmps. The
> > monitor is leaking 290 microAmps by itself. The PC, amplifiers, and other
> > devices combined are well with in this limit. Only the monitor is way out
> > there. If we can find a monitor that is leaking less than 100 microAmps I
> > think we would be OK.
--
Kenneth R Foster
Department of Bioengineering
University of Pennsylvania
220 S. 33rd St.
Philadelphia PA 19104-6392
215-898-8534
fax 215-573-2071
Chair, EMBS Committee on Man and Radiation 1997-
Faculty Associate, Ware College House
*****************************************************************************
SSIT Website: http://www4.ncsu.edu/unity/users/j/jherkert/
COMAR website http://homepage.seas.upenn.edu/~kfoster/comar.htm
Blurb for latest book http://homepage.seas.upenn.edu/~kfoster/book.htm
Recent Papers http://homepage.seas.upenn.edu/~kfoster/papers.htm