[BC] Diathermy

[John Lyles]

Yikes
One of the photos shows a girl getting her sinus treated with a big RF electrode. Now that is a BAD idea. Too close to the eyeballs. (My Aloe diathermy has a D&C knife (wire hoop at the end of a phenolic probe) with it, and the book recommends testing your skills with a rare cut of steak before tearing into a patient. Remember this was pre-WWII.) 

Another photo shows a Raytheon Microtherm. That unit ran on 915 or 2450 MHz, with a small magnetron. It was not recommended to put the little corner reflector/dipole over your important parts, like your eyes....
Thanks for the article,
John 


> From: Kevin Tekel <amstereoexp at yahoo.com>
> Subject: [BC] RF injuries

> John Lyles wrote:
> > My family's physician had a diathermy machine when he retired, and gave
> > it to me. It runs at ~13 -17 MHz, free wanderer. It was a pushpull
> > circuit, and it had no ground on it.
> 
> Modern Mechanix article from 1957 about diathermy and its potential for
> harmful RFI:
> 
> http://blog.modernmechanix.com/2007/11/22/what-you-should-know-about-diathermy/