Patent ID: 7507212

Claim:
An ultrasonic treatment device comprising: a handpiece having an ultrasonic transducer; an ultrasonic probe having a base end operatively connected to the ultrasonic transducer for transmitting ultrasonic vibration; a tubular inner sheath covering the probe; an outer sheath having a base end and covering the inner sheath with a predetermined space left between both sheaths, the space functioning as a suction path for mist; a base-end sealing member comprised of an elastic material, disposed on the base end of the outer sheath and engaged detachably with the inner sheath to seal a gap formed with the inner sheath; and a suction member disposed on a base-end side of the outer sheath, formed to communicate with the suction path formed between both the outer and inner sheaths, and configured to suck in the mist through the suction path.