The lot number was not reported, therefore, the device history records could not be reviewed.The investigation is inconclusive, as the sample was not returned for evaluation.Based upon the available information, the definitive root cause for this event is unknown.It is unknown whether procedural factors contributed to the event.The current ifu (instructions for use) states precautions - never test the product by firing into the air damage may occur to the needle/cannula tip and could result in patient and, or user injury - unusual force applied to the stylet or unusual resistance against the stylet while extended out of the supportive cannula may cause the stylet to bend at the specimen notch.A bent specimen notch ma, interfere with the needle function.Directions for use - energize (cock) instrument by pulling back on the top slide to withdraw the cannula and lock in place.Then pull back on the bottom slide to withdraw, the stylet and lock in place.Remove protective needle sheath and yellow guard instrument is ready to fire when both slides are locked back - verify instrument is energized (cocked).Note: do not place fingers in front of cocking slides once instrument is energized (cocked) impeding cocking slides' movement will impact functionality.Potential complications - potential complications associated with core biopsy procedures are site specific and include, but are not limited to hematoma, hemorrhage, infection, adjacent tissue injury, pain bleeding, hemoptysis, hemothorax, non-target tissue, organ or vessel perforation, and air embolism.
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To ensure compliance to 21 cfr 803.50 a retrospective review of this file was conducted to determine if good faith efforts were made to obtain the required information and/or an explanation of why any required information was not provided.Multiple follow up attempts were made with the facility to obtain any information pertaining to the patient, product, and procedural details (e.G.Date of the event, relevant test data, relevant history, lot #, catalog #, implant and/or explanted dates, and concomitant product(s) or therapy) that were not previously obtained during the initial investigation.The user facility did not have any additional details to provide at this time.
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