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When an accidental scratch happens, you use a cotton stick and potion to deal with the wounds.But there're probably problems that the amount of medicine is not enough at the first time and you forget to change a new cotton stick at the second time. Repeatedly using the same cotton stick does not meet the requirement of sanitary. What's worse, putting it into the container again will pollute the remaining potion,leaving room for the virus to grow. The combination of a cotton stick and a dropper makes it possible for a straw to contain enough potion. For the wounds all you need to do is squeeze the dropper and let the potion drop onto the cott
Guangdong University of Technology
Guangzhou, China
Zhibin Liu,
Guangdong University of Technology
Chao Zhong,
Guangdong University Of Technology
Pei Xie,
Guangdong University Of Technology
Hanhao Liang,
Guangdong University Of Technology