| 摘要 |
<p>A sonic scalpel comprises a handpiece incorporating a compressed gas driven vibrator and carrying a tip. A base unit which controls the gas supply to the handpiece, is connected to the hand piece by a flexible tube. The tube has a first internal channel for the supply of gas under pressure to the handpiece, a second internal channel for the return of exhaust gas to the base unit, and a third internal channel for the supply of a sterile liquid to the tip. An adapter is provided for releasably connecting the tube to the base unit and a source of the sterile liquid so as to permit the handpiece and tube to be sterilised.</p> |
