... , This product is disposable product, please do not reuse.2, This product has been sterilized by ethylene oxide, if ... Sliding sampling switch backward, making sure 1.it moves smoothly; 2.needle without defects (bending, tip damage, etc).6. If the product ... sound indicating the cannula is advanced, meantime biopsy procedure finished. 2. Press the button deeply; consecutive two "click" sound indicating ...