摘要 |
A medical delivery or extraction system comprising a needle assembly having a needle and a hub coupled to the needle. The hub includes a verification region or component. A syringe body rotatably coupled to the needle assembly includes at least one indicia on the outer surface thereof. When the indicia corresponds to the verification region, the user is provided with an indication that the syringe body is properly connected to the needle assembly. The system also includes a lever arm coupled to the needle assembly. The lever arm is sized and positioned to provide a user with a mechanism of easily securing the needle assembly to the syringe without the use of external tools.
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