[Cyborg] Building a home polysomnograph to record heart rate, blood oxygen while you sleep.

Kevin Burton burtonator at gmail.com
Wed Jun 1 19:43:40 PDT 2011


There's this one:

http://focus.ti.com/docs/toolsw/folders/print/tmdxmdkpo8328.html#buy

But it's $400.

The problem is that there is so much money in the medical industry that they
can charge whatever the F they want because insurance just pays for it
(granted it's a bit more complicated than that)

....

http://tinkerish.com/blog/?p=181

this guy build a hard core one :)

On Wed, Jun 1, 2011 at 6:38 PM, John E <neurofog at gmail.com> wrote:

> Kevin,
>
> +1 Its a good idea, and can be made surprisingly cheap.
>
> The trick for Spo2 measurement is buy the sensors, and make the
> measuring electronics yourself. TI offers Hardware Development kits
> for medical applications that might help.
>
> Regards,
> John
>
> On Wed, Jun 1, 2011 at 6:18 PM, Eric Boyd <mrericboyd at yahoo.com> wrote:
> > Hey, great idea, it'd be super awesome to have a USB-capable
> pulse-oximetry
> > device.  I haven't heard of such a thing, at any price, though you're
> > probably right that expensive ones exist.  I once hacked a cheap ($30)
> > finger-clamp one in order to get out the heart-beat information, but
> > basically all I did was wire into the LED display - it had a little
> display
> > with 5 LEDs serving as a kind of bar-graph display for the signal from
> the
> > heart, so all I did was wire into the 3rd and 4th LED, and feed that into
> > the digital pins on my microcontroller.  Easy hack.  But I imagine it
> > wouldn't be that much harder to find e.g. the control circuitry for the
> > display and reverse it to get out the characters that are being shown
> (and
> > thus the oxi-reading).  Feed that into a new Uno arduino and you could
> write
> > the USB-interfacing stuff.  I'd love to help but sadly I'm in Toronto
> now.
> > Hopefully someone will step forward to help you out!
> >
> > Eric
> >
> >
> > On 6/1/11 8:31 PM, Kevin Burton wrote:
> >
> > Hey gang.
> > Long story short.  I'm a data/fitness/compsci geek.
> > I've been aggressively tracking all of my body telemetry as part of my
> long
> > term project to improve my health (and live at peak physical condition).
> > Here are a few links:
> >
> http://feedblog.org/2011/04/19/on-polysomnographs-apnea-oximeters-ant-and-data-recorders/
> >
> http://feedblog.org/2011/04/17/reflecting-on-my-recent-sleep-experiments/
> >
> http://feedblog.org/2011/03/29/the-horrible-problem-of-synchronized-fitness-data/
> > http://feedblog.org/2011/03/19/my-quantified-self/
> > I'd like to now build a cheap home polysomnograph.
> > http://en.wikipedia.org/wiki/Polysomnography
> > I did a bunch of research and a professional ONE NIGHT visit to a sleep
> > clinic to get a polysomnograph is $2500.
> > So what I want to do is basically buy a cheap oximeter to measure blood
> > oxygen and heart rate.
> > A recent paper was released showing that oximetry is the leading
> indicator
> > of apnea and that this $2500 polysomnograph is just a waste of money (I
> can
> > find the link if someone wants it but I have to track it down).
> > But these oximeters are cheap... $24.
> >
> http://www.google.com/products/catalog?client=safari&rls=en&q=oximeter&oe=UTF-8&um=1&ie=UTF-8&tbm=shop&cid=312759277086602921&sa=X&ei=I9nmTZ3zEoT0swPxpOSKCw&ved=0CJIBEPMCMAE#ps-sellers
> > The problem is that none of them have PC integration support.  There is a
> > chinese company that has one for USB but Windows only drivers and it's
> $150.
> > These are designed to be spot monitors.
> > I think the reason is that the market for more professional ones is like
> > $500-1000 for "professional" home monitoring.
> > What I'd like to do is buy one of these cheap ones and mod the hardware
> to
> > interface with USB and then publish the specs on how to mod them.
> > I'm not a hardware hacker though... nor do I have any real motivation to
> > work on hardware.  This is a one time project.
> > Any pointers?  I can do the software and analytics component of this and
> > will volunteer myself as a guinea pig.  I just need a USB interface for
> the
> > oximeter data..
> > Kevin
> >
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>
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