4 ms·
as far as I know, it's not particularly clear yet (surprising, since Negative Pressure Wound Therapy - NPWT - has been around for ages. The USSR had some guys w
by flipbrad 17y ago
as far as I know, it's not particularly clear yet (surprising, since Negative Pressure Wound Therapy - NPWT - has been around for ages. The USSR had some guys working on it, inc. Bagoutdinov). Possibly, it's just vacuuming up nasty crap, keeping the wound moist but not covered in pus. alternatively, it's directing the growth inwards. lastly, it might be creating conditions unfavourable to bacterial colonisation (low pressure, low oxygen, etc)
I was reading up about a patent dispute involving precisely this type of device (connected to an active pump, not this accordion) and the innovation there was a big of sponge placed in the wound (and then the lot is wrapped in clingfilm). The pressure it applies - evenly - also seems to help wound healing, especially by preventing overgrowth, and keeping the clingfilm off the wound itself.
Just something to note if you want to try this at home.
sterilise everything, kids!
- est 17y agoIs NPWT similar to 拔火罐 in China? It also creates a near vacuum negative pressure using hot air. It's been practiced for thousands of years. And it also costs about 3 dollars, in RMB.
- jcl 17y agoYou mean this?: http://en.wikipedia.org/wiki/Fire_cupping http://en.wikipedia.org/wiki/Fire_cupping I think it differs in that fire cupping is not traditionally done over an existing open wound but rather specific locations on the body (neck, back). It might be a cheap way to do NWPT, but it would be hard to apply to uneven or bony areas like joints or hands/feet.