It was noticed that after following all the surgical steps for manipulation, (preparation) the exit's channel (cartridge tip) was damaged by excessive tightening in an unknown number of cartridges.The injectors were changed as well as the assistant (user), and after further attempts the results were the same.Therefore, the box of injectors was changed.With the new injectors everything was normal.No patient involvement/injury reported.No additional information was provided to abbott medical optics.
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