DUAL CHAMBER SYRINGE WITH RETRACTABLE NEEDLE

摘要

PROBLEM TO BE SOLVED: To provide: a retractable syringe assembly with a retraction mechanism that does not interfere with a normal operation of the syringe assembly and reduces the risk of premature activation or the retraction mechanism; and a retractable syringe assembly which incorporates a reuse prevention structure.SOLUTION: Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel structure. One or more embodiments include reuse prevention structures and structures that prevent premature activation of a retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.SELECTED DRAWING: Figure 1