里面有一个专门储存麻醉剂的区域，Sara伸手拿起麻醉剂，接着迅速地将麻药抽入注射针管，然后用一块布带绕系在她的上臂，找到静脉，她的动作显得麻利而熟练。

She reaches for the drugs, her movements quick but confident. She quickly fills a hypodermic needle with morphine, and then ties a piece of cloth around her upper arm to find the vein.

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本发明提供了一种带安全回套的注射针，它包括连成一体的针座与针管以及用于保护针管的针管保护套，还包括固定套筒和保护套筒。

The invention provides a inject needle with safe loop which includes needle base and needle tube linking in one unit, needle tube protect loop for protect needle tube and fixed loop and protect loop.

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