(b)(4).Batch #r94v8h.Investigation summary: the device was returned with the distal tip of the blade broken off and not returned.The remaining blade portion was scratched with evidence of contact with metal in or out of the operative field.This blade tip portion may have broken off of the device during transport to our analysis site.During functional testing on gen11, an alert screen was displayed.A probable cause for the device to stop activating and the gen11 to display an alert screen is blade damage.The manufacturing records were reviewed and the manufacturing/packaging criteria were met prior to the release of this batch.Probable causes of blade damage, including breakage, are external contact during pre-op or general use, blade contact with other devices, staples or clips during the procedure, or using any means other than the blade wrench to attach or detach the blade.Once minor blade damage has occurred, subsequent activations may increase damage severity and can result in not passing the pre-run test followed by an alert screen, such as ¿tighten assembly,¿ ¿blade error detected¿ or "relax pressure on blade," followed by a ¿replace instrument¿ screen later in the procedure.Continued usage can result in a broken blade.
|