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Paul RakoTechnical Editor Paul Rako looks at analog technology in power supplies, interface, the signal path, and life in general.



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Monday, November 9, 2009

Ultrasound does active wound healing

Nov 9 2009 3:17PM | Permalink |Comments (2) |


I came across a neat article in Forbes where researchers are using ultrasound to stimulate blood flow and heal chronic wounds. This is just another use for ultrasound. I wrote an article about diagnostic ultrasound a few months ago, Rob Cravotta wrote up 3-D ultrasound, and there are other uses like using a lot of ultrasound energy to break up tumors or kidney stones. There are also industrial uses like film thickness measurement. It is a fascinating area— and ultrasound system is a complex transmitter receiver chain with aspects far more interesting than a radar signal chain, which it resembles.


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Reader Comments



at 11/10/2009 3:08:31 PM, William Ketel said:
The applications of ultrasound, (ultrasonic frequencies through (sort of) solid materials, such as flesh and organs and even various fluids, will definitely grow, since these frequencies do allow a lot of information to be found. So seeing through things without radiation is a great new field. BUT there is also a down-side. Just because most of us humans can't hear or feel this sound does not mean that others hear and feel nothing. When you see the untrasonic scan of a fetus and it tries to cover it's ears, just consider that there may be some feeling going on. Fluid coupling works much better than air coupling, and it is entirely possible to rach levels that would not be acceptable at a loud concert. So perahps we need to think carefully and watch what is happening.



at 11/16/2009 12:09:34 AM, Andy T said:
I had u/s therapy on my knee cartilage a decade ago - when I asked, as a curious engineer, how it worked in promoting the knitting of cartilage they had no clue, it just did. If it wasn't for us engineers, modern medicinal practitioners would be wearing masks and dancing circles around us to invite a cure.

One nice thing about higher resolution u/s is that less power could, in theory, be used, and beam targeting could be more precise. Another approach might be to simply modulate the u/s "carrier" with "Baby Einstein Does Zeppelin", turning fetal kicks into toe taps.

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