Hi everyone,
I carring out a master in biomaterials developpement and i need some
information about neuroprosthesis. I have to writte a few pages about
the key parametters of biocompatibility of electrode. I have to answer
the simple question: why thoose device become out of order after few
month?? I know it's the impedance which is rising like hell, but i
still don't know why??
Is anyone, know somethings about it??

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Request for Question Clarification by mathtalk-ga on 11 Nov 2004 09:05 PST

Hi, joul-ga:

Is there a specific medical device that you are asking about?  Would
you be satisfied with a link to a page that discusses biocompatibility
of electrodes in a general context?  Such an Answer would seem
commensurate with the list price you've chosen to offer for this
Question.

regards, mathtalk-ga

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Clarification of Question by joul-ga on 15 Nov 2004 08:45 PST

yep for sur it's ok... I gonna really happy with just a link to a good
net page. I don'T really ask for more. I just want to check how i made
my mind with some other explanation than the one provided in
scientific articles... thanks for helping.
see ya

This might help, it has some failure cases and reasons why they failed.
http://www.vard.org/jour/03/40/6/kilgore.html