When the b ultrasound in operation, what's the general security information?

Safety of the operator and patients and reliability of the device are taken into consideration during designing and producing, the following safety precautions must be implemented:1.The device shall be operated by qualified operating staff or under their instructions.2.Do not open the device and change the parameters without permission. If necessary, please turn to authorized agents for service.3.The device has already been regulated into its optimal performance. Do not adjust any preset control or switch unless operate as instructions in the manual.4.If the device works failure, please shut down the device at once and contact our authorized agents.5.Do not hit the fragile TFT-LCD display. If it cracks, deal with it carefully in case the liquid crystal gets into eyes or mouths.6.Forbid hit the inner rechargeable lithium battery nor throw it into fire in case it trigger an explosion; Do not short circuitbattery output, or the battery might be damaged. Please use the original binding charger to charge the battery. Used battery will cause environment pollution, please handle the battery correctly for callback processing.7.Forbid disassemble the power supply adapter. If malfunction happens, please handle by the professional; the charging output can only be used for charging the battery of the device, any improper use on other battery may cause explosion, fire and other unexpected hazards.

Prophase prometaphase metaphase anaphase and telophase (i would make the diagram with arrows pointing down to the next step)