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The pinch injector is designed for a single use. Meanwhile, its easy to recognize, convenient for transportation and economize the material in addition.
The injector just looks like a capsule. Medicinal liquid is in the first half, which can be pinched. The pinhead is covered by the bottom half. So, the nurses dont have to use a injector to absorb medicinal liquid from another bottle. All they need to do is just pinching the capsule to give the patients an injection.
Cheng Qiying, Gu Shaoting, Cai Juexiao, Le Yiyan