Investigation summary: a device history record review was completed for provided lot number 2104421.The review did not reveal any detected abnormalities during the production process that could have contributed to the reported defect and all quality tests were found to be within specification.To aid in the investigation of this issue, a video was provided for evaluation by our quality engineer team.Through examination of the video, it is observed that the plunger component cannot move down.The video displays the soloshot syringe with the clip activated.Once the clip is activated, the plunger is unable to move, as it is an intentional characteristic of the syringe.When examining the physical samples, one of them was found used with the clip activated.This means the plunger could go up, but it could not go down.Unused samples were also provided; however, no issues were observed with the unused syringes.Bd soloshot mini syringe is an auto-disable two-piece syringe, consisting of two plastic components (plunger and cylinder) and a metal clip.The function of the clip is to avoid reuse of the syringe in order to prevent infection transmission.The reason why the plunger cannot move forward is because the clip has already been activated.The user should ensure that the syringe is totally closed before drawing up medication.If it is preferred that the plunger move more than once, there are other bd syringes available with such abilities.
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