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The sales representative reported on behalf of the customer that the pro6450m, mpower 2 battery sternum saw, was being used on 4feb26 and the ¿saw blade falls off mid case¿.Per further assessment it was reported the "saw blade fell off into the site.Was retrieved.¿ there was no report of impact or injury to the patient or user.This report is being raised due to the reported malfunction with potential for injury upon reoccurrence.
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An evaluation of the returned device found that the saw blade does not fall off once tightened with wrench.The gearbox was loosened from motor, however, no damage found.Preventative maintenance is overdue.Preventative maintenance was completed on this repair order.Repair/evaluation completed.Final test completed and met all specifications.The service history was reviewed, and no prior data was found.A device history record (dhr) review found no abnormalities that would contribute to this reported event.A two-year review of complaint history revealed there has been a total of two reports, regarding two devices, for this device family and failure mode.During this same time frame 10,322 devices have been manufactured and shipped worldwide.Should all the complaint devices have been found confirmed for this reported failure, the rate of failure would be (b)(4).Per the instructions for use, the user is advised the following: the mpower 2 handpieces shall be returned every 12 months for servicing.Prior to each use, perform the following: ensure all accessories are correctly and completely attached.Perform the required preoperative functional tests for the equipment and accessories.With the blade guard in the proper position, release the locking sleeve.It will snap into place, locking the blade guard to the handpiece.Make sure the blade is inserted inside the slot of the blade guard, not outside.Otherwise, damage or injury may occur.We will continue to monitor per regulatory requirements to help ensure patient safety.
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