According to the reporter, during a laparoscopic low anterior resection procedure, there was an incident right after the powered stapler was set up.An open/close test of the jaws was performed with no problem.The three indicator lights illuminated green.When the surgeon attempted to approach the tissue, the self-check of the stapler started on its own and the reload started to articulate.The device was dissembled and was assembled again to correct the problem.The same issue occurred.The status of the patient is no problem.The procedure was completed with another device.
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(b)(4).Evaluation summary: post market vigilance (pmv) led an evaluation of one adapter opened by the account.This evaluation was based on a technical review of all data received from the site, a pmv review of manufacturing records, a pmv review of complaint trends and an evaluation of the returned device.Visual inspection by engineering noted two (2) cracked solder joints and a bowed switch.Functional evaluation of the adapter did not replicate the reported condition of uncontrolled articulation but replicated a secondary condition of reload not recognized.A malfunctioning switch is the result of several variables including: improper solder operation at the vendor location, improper assembly of the sealed switch to the mma board at the vendor location, and/or improper soldering during assembly.A product enhancement has been implemented to prevent this condition from re-occurring.Should new information become available, the file will be re-opened and the investigation summary will be amended as appropriate.
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