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Since the device has not been returned for analysis, no product failure analysis can be conducted, and no determination of possible contributing factors can be made.As such, the investigation will be closed.If the complaint device is received in the future, the investigation will be reopened and conducted as appropriate.Since no lot number was provided, no manufacturing record evaluation could be performed.Reason for device explant and/or reoperation: deflation.Manufacturer¿s reference number: (b)(4).
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On october 13, 2021, the mentor failure analysis lab received the device for evaluation.Upon receipt, the previously unknown lot number was confirmed to be 9490032.On november 7, 2021, mentor completed evaluation of the device.Device evaluation summary: the product was returned to mentor for evaluation.Mentor conducted a visual inspection, leak test, and microscopic examination of the returned device.During the visual evaluation, no apparent damage or visual anomalies were observed on the medium height te 650cc returned device.However, a blue coloration was noted on the shell.Leak testing was performed, according to mentor procedure, and it identified a tear at the juncture of the shell and the posterior patch.Microscopic examination was performed and the cause of the tear could not be identified.A manufacturing record evaluation was performed for the finished device lot number, and no non-conformances were identified.A clarification from the customer was received regarding the origin of the blue dye, it was to detect any leakage from the expander.As stated in the product insert data sheet, is contraindicated to place drugs or substances inside the tissue expanders other than sterile saline for injection since this could compromise the product integrity.As part of mentor¿s quality process, all devices are manufactured, inspected, and released to approved specifications.Additional complaint information monitoring for potential safety signals is conducted through complaint trending as part of post-market surveillance.Manufacturer¿s reference number: (b)(4).
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