A complaint was received on 3/10/2023 reporting the skin hook broke off and had to be removed from the surgical site.A supplier corrective action request (scar) was issued to the skin hook supplier fine surgical.The sample has been returned to deroyal for evaluation and forwarded to fine surgical.They forwarded the sample to their manufacturer, crown surgical, for inspection and testing.Root cause was determined to be unknown by the supplier fine surgical.The manufacturer crown surgical determined that there are these areas which could have contributed to the skin hook breaking: the tip of the hook was weak/damaged and caused it to break during the procedure.The tip was not strength checked properly during inspection at manufacturer site.The following corrections have been taken by fine surgical and the manufacturer crown surgical.The instrument was sent to the material testing lab to ensure the chemistry and hardness was according to specifications.The test showed that the material was conforming to the specification.During raw material handling the supplier is making sure to cover the hook with a sleeve to ensure there are no logistics effects to the hook portion of the instrument.Monitoring a controlled heat-treatment process so the hardness is equal throughout the instrument.Making sure the hook isn't ground to an extent that it becomes weak.Inspecting each hook visually with a magnifier to spot any cracks at the tip.Retraining personnel on the manufacturing line.The following corrective and preventive actions have been taken by fine surgical and the manufacturer crown surgical: current stock was inspected.Checked the hardness of the hook to make sure the tip of the hook isn't brittle.Strength tested by pressing the hook portion against a hard surface during the inspection process.Testing lots and removing any rejected product prior to shipping.Retrained employees and updated the manufacturing and inspection process.Adding additional inspection team members to check all instruments that have been packed.Production records were reviewed, and no issues were found.An inventory check of the skin hook was made by deroyal, a total of 10 of the 1154327 were inspected, and no discrepancies were identified during the inspection.This investigation is complete at this time.No further information is available at this time.We will provide follow-up report if additional information becomes available.
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