Ultrasonic-Assisted Wound Debridement (uaw)

for wound debridement.

Sonoca 185:

 Practical and compact.

UAW handpieces:

 Versatility for a range of wounds.

Spatula sonotrode:  

Used for wounds in difficult-to-reach intermediate 

spaces, such as between the toes

Double-ball sonotrode:  

Debridement of wound pockets

Hoof sonotrode: 

Ideal for wound surfaces

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Ultrasonic-Assisted Wound Debridement – 

use of the cavitation effect for debridement and 

the cleansing of wounds.

Ultrasonic-Assisted Wound Debridement (UAW) 

uses the effects of cavitation to selectively debride 

wounds. Cavitation is caused by the vibrations of 

the UAW handpiece at an ultrasonic frequency of 

25 kHz in an irrigation solution (see figure). The vib-

rations of the UAW handpiece are generated by the 

use of an ultrasonic generator and piezo electronics 

in the UAW handpiece. The required irrigation solu-

tion is guided directly through the UAW handpiece.

Cavitation effects occur beneath the sonotrode of 

the UAW handpiece. Devitalised tissue, foreign bo-

dies  and  biofilm  structures  are  removed  by  these 

cavitation effects. They do not, however, have any 

negative impact on healthy tissue which therefore 

remains intact. This means thorough debridement 

is possible without damage to healthy structures, 

which is particularly important for residue-free remo-

val of biofilms, during initial debridement and during 

the course of wound cleansing.

During UAW, the sonotrode vibrates back 

and forth 25,000 times a second.

When the sonotrode moves back, vacuum 

bubbles arise in the irrigation solution (cavitation 

bubbles).

When the sonotrode moves forward again, the bub-

bles implode and generate a strong current which 

removes devitalised tissue and biofilms from the 

wound ground.

© 2013 by Söring