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(b)(4).Batch # n53t92.Investigation summary: the analysis showed that the 6tb45 device was received with no apparent damage and with a 6r45b cartridge loaded in the device.The reload was received partially fired 1/3 and with the reload lock out spring damaged.The returned device was tested for functionality with a test reload and it fired, cut and formed all the staples as intended.The staple line and cut line were complete, and the staples meet the staple form release criteria.The damage to the reload lockout spring is consistent with damage observed when the firing cycle is started, interrupted, released, and restarted.When firing the device make sure that the firing stroke is completed.Do not partially fire the device.Fire the device by squeezing the firing trigger completely until it rests on the closing trigger.Once the firing cycle has been initiated, it must be completed.If re-initiation of firing is resumed, the device will lockout.Firing through the lockout mechanism will break the device.Please reference the instruction for use for more information.A manufacturing record evaluation was performed for the finished device batch number, and no non-conformances were identified.Attempts are being made to obtain the following information.To date no response has been provided.If further details are received at a later date, a supplemental medwatch will be sent.Can you please provide more event details? did the safety lockout engage (no staples or a cut line delivered beyond the lockout)? or, were staples missing or not visible after being deployed? were any staple lines formed at all? did the device staple at all? if yes, what was the appearance of the staples that deployed into the tissue? (b-formation, irregular, legs straight)? if the device did cut the tissue, but did not staple the tissue how was the transected tissue managed? what is the current patient status? was there any patient consequence or change in the post-operative care of the patient as a result of the event (extended hospital stay, readmission, re-operation, etc.)? please explain.
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