For the record...
My mother received a heart pacemaker last year. Naturally, I had some
concern about EMI if she was going to ride in my Voltsrabbit. I surfed
the internet looking for info, as well as talked with the pacemaker
manufacturer, and basically concluded the odds were low that there was
going to be an issue. So far my mom hasn't had any problem with riding
in the electric, although she doesn't go with me often, but usually with
one of her home healthcare people in the usual ICE vehicle. Also, when
she has had her pacemaker scanned on a semi-annual basis by the
cardiologist, they have not turned up anything and have said the
pacemaker is functioning normally. I haven't told the cardiologist or
the pacemaker rep that scanned her one time anything about the EV - I
wanted a blind test and not a lot of hand wringing.
So in case some don't know, the VoltsRabbit is a conversion kit from
ElectroAutomotive for late '70s / early '80s VW Rabbits. My conversion
was done in 1994. 16 flooded 6V batteries for total pack voltage of
96V, with eight batteries in the rear and eight in front. The 2/0
cabling between the packs goes down the tunnel in the middle of the car,
and the two cables are tied together (although not wrapped around each
other). 8" ADC motor in the place of the old diesel engine in the
transaxle arrangement. Controller is alongside the right front fender.
I upgraded after a year from the standard Curtis 1221B to a 1231C with
a different orientation and heatsink arrangement. The approx. 3-foot
cables from the controller to the motor are tied together for some of
their length. Also, I've changed the cabling arrangement of the battery
pack, so the EMI there might be a little different from stock.
So from my mom's pacemaker (she's short and doesn't sit high in the
passenger seat), it's probably about two feet or a little more to the
cables in the tunnel. About the same distance to the cable that goes
through the circuit breaker at the base of the dash. Controller is
probably about twice that distance, maybe like five feet. I'm sure
there's EMI in the car, as when I had an AM radio in the early days, it
would certainly sing and whistle along with what the controller and
motor were doing. None of that is shielded. But there is a lot of EMI
out there in the world, and for a pacemaker to work, it's got to be
resistant enough so that the odds are very very low that there will be a
malfunction.
Chuck
On 3/11/2013 2:37 AM, brucedp5 wrote:
EMI is an non-issue, EVs are Safe.
http://www.newswise.com/articles/mayo-clinic-study-finds-electric-car-does-not-interfere-with-implanted-cardiac-devices
[image] Electric Car Does Not Interfere with Implanted Cardiac Devices
3/9/2013 Source Mayo Clinic
VIDEO ALERT: To view a video of Dr. Scott discussing the Hybrid Cars and
Implantable Cardioverter Defibrillators: Is it Safe? study [
http://youtu.be/nk5DvjmubVE
] ...
Newswise — PHOENIX – A Mayo Clinic study has concluded that patients with
implanted cardiac devices such as pacemakers and defibrillators can safely
drive or ride in an electric car without risk of electromagnetic
interference (EMI).
The study, titled “Hybrid Cars and Implantable Cardioverter Defibrillators:
Is It Safe?” is the first of its kind to address the interaction between
these devices and electric cars. It will be presented at the 2013 American
College of Cardiology Annual Scientific Session in San Francisco on March 9.
In some cases, implanted devices may sense signals from electrical or
magnetic objects and misinterpreted them as potential distress coming from
the patient’s heart.
The increasing prevalence of electric and hybrid cars, one of the fastest
growing segments of the American automotive industry, prompted Mayo Clinic
cardiac investigators to study the potential risk of the effects of EMI on
patients with implantable devices. Mayo Clinic researchers used implantable
devices from the three major manufacturers and a 2012 Toyota Prius hybrid in
the study. Electric and magnetic fields were measured in six positions: from
the driver’s seat, front passenger seat, the left and right rear seats and
in front of and behind the car from the outside.
Each position was evaluated at different speeds: 30 mph, 60 mph and at
variable speeds of acceleration and deceleration.
The 30 study participants with implanted devices were continuously monitored
while rotating positions in the car and driving the car, with a particular
focus on real-time detection of any interruption in the normal functionality
of their devices.
Luis R. Scott, M.D., Cardiologist, and Fernando Tondato, M.D., Cardiology
Fellow, both of Mayo Clinic in Arizona and the study’s lead investigators,
called for additional study. They said that although the study results
revealed that the car tested did not generate clinically relevant amounts of
EMI and that the car is safe for patients with implanted devices, more
research will help define and solidify the results. “Further studies may be
necessary to evaluate the interaction between implantable devices and other
models of hybrid or electric cars,” says Dr. Scott ...
The study was funded by the Mayo Clinic Center for Translational Science
Activities.
[© 2013 Newswise]
...
[images
http://www.blogcdn.com/www.autoblog.com/media/2013/03/volkswagen-e-co-motion-concept.jpg
http://images.gizmag.com/inline/vw-e-co-motion-concept-7.jpg
http://www.autoweek.com/galleryimage/CW/20130306/GENEVA/306009998/PH/1/4/Volkswagen-VW-e-CO-motion-Geneva-concept-dashboard.jpg
]
http://www.inquisitr.com/564887/hybrid-cars-dont-harm-heart-implants/
Hybrid Cars Don't Harm Heart Implants
Your hybrid car, or even your all electric car, will not harm your cardiac
implant. That's the good news from the Mayo Clinic, which reported on its
new study ...
http://www.eurasiareview.com/10032013-electric-cars-safe-to-drive-for-patients-with-implanted-cardiac-devices/
Electric Cars Safe To Drive For Patients With Implanted Cardiac Devices
Patients with implanted cardiac devices such as pacemakers and
defibrillators can safely drive or ride in an electric car without risk of
electromagnetic interference (EMI). These are the findings of a study by the
Mayo …
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