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The device was returned to stryker sustainability solutions for evaluation.Upon inspection of the received complaint device, there was no evidence of bio-burden present on the device, the tray had stickers of biohazard on it.The handle, blade trigger, button, shaft, and jaws appeared to be intact.The device plug is stryker branded, the plug, barcode, and prongs were inspected for damage, corrosion, and deformation and found none.The spacer pads were inspected for damage and all appeared to be in good shape.The device was verified for proper mechanical functionality of the jaws and handle actuation.No mechanical issues or anomalies were detected.An audible click was heard when the jaw lever engaged the click tab and a second click was heard when engaging the purple activation button.While the jaws were in the closed position, they were inspected and found to be properly aligned and closed as intended.The blade trigger was tested and verified to maintain proper movement up and down the track.Manual continuity tests were performed and found an open connection on continuity on the plug prong #1 to bottom jaw.The cord was manipulated to see if there was an intermittent connection and no issues were found.The device was connected to the force triad generator to verify that the device could seal, coagulate, and cut on the test medium(pork intestine).The device was recognized by the force triad generator and the default number of power bars was displayed (2).The plug was manually manipulated while plugged into the force triad generator and no issues were observed.While grasping the test pork intestine the handle was compressed the purple activation button was activated, an error was displayed on the generator "check instrument".After the device failed to activate, it was carefully taken apart and inspected.All the internal components and wires were intact but the red to brown wire solder sleeve revealed a bare wire near the bottom heat shrink connector.Manual continuity test revealed the open was coming from the brown/red solder sleeve connection.While dissecting the solder sleeve the red wire came off and did not show it was connected to the solder ball.Most likely the wires were not secured together.The results of the visual and functional inspections determined that the reported event was confirmed.A review of the dhr for the reported lot/serial number supports that the device met all inspection and test criteria prior to release from stryker.The most likely root cause of the reported event is improper installation of wire placement and soldering assembly during manufacturing, resulting in no activation/electrical error during clinical use.The instructions for use (ifu) state: remove instrument from tray by firmly pulling on the handle.Do not pull on the instrument jaws or cable.Insert the connector into the receptacle on the generator.Follow the instructions in the generator user¿s guide to complete the setup procedure.Inspect the instrument and cords for breaks, cracks, nicks, or other damage before use.Failure to observe this caution may result in injury or electrical shock to the patient or surgical team, or cause damage to the instrument.If damaged, do not us.The reported event will continue to be monitored through post-market surveillance.
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