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Conclusion not yet available, evaluation in process.A follow-up report will be submitted as soon as the investigation is complete.Oscor inc.Is submitting the above report to comply with 21 cfr part 803, the medical device reporting regulation.The report is based upon information obtained by oscor inc.Which the company may not have been able to investigate or verify prior to the date the report was required by fda.This report does not constitute an admission that the device, oscor inc., or its employees, caused or contributed to the event described in this report.Nor does this report reflect a conclusion by fda, oscor inc., or its employees, that the report constitutes an admission that the device, oscor inc., or its employees caused or contributed to the event described in this report.
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Two 6f occlutech delivery sheaths were returned under rma# (b)(4) with the dilators and loaders.There were no other accessories.Traces of blood were found on all components.According to the event description summary, it was hard to advance occluder & flexpusher cable through loader/ sheath assembly of both sheaths and the hub came off of the 1st sheath.The occluder & flexpusher cable were not returned for analysis to ensure fit so all that can be done is measure the devices that were returned.Sheath #1: the sheath was received with the hub attached, but when pulled with a light amount of force, it became detached from the sheath shaft.As per sheath drawing, the id of the sheath should be 0.086" ± 0.001".The inner diameter of the sheath was checked with a pin gauge and was within manufacturing specifications at 0.086".As per loader drawing, the id of the loader should be 0.087" ± 0.002".The inner diameter of the loader was checked with a pin gauge and was within manufacturing specifications at 0.087".Sheath #2: as per sheath drawing, the id of the sheath should be 0.086" ± 0.001".The inner diameter of the sheath was checked with a pin gauge and was within manufacturing specifications at 0.086".As per loader drawing, the id of the loader should be 0.087" ± 0.002".The inner diameter of the loader was checked with a pin gauge and was within manufacturing specifications at 0.087".Per mfg procedure (thermoplastic overmolding of adelante breezeway shaft hubs) shaft hub bond strength test - this test is performed periodically throughout the run with a pull tester.Activate the force gauge to apply a tensile force to the shaft-hub joint.Pull until destruction.The shaft-hub bond strength for all adelante breezeway models shall be > 6.74 lbf.Per qa procedure (breezeway ii guiding sheath shaft assembly) insert a rounded pin gauge of the appropriate french size and length into the proximal end of the shaft and through the distal tip to ensure correct fit and no obstructions.Pull test - for destructive testing, test per s-4 sampling level aql = 1.0, reduced.Using a tensile tester, a sheath hub holding fixture and/or clamp, perform the test to evaluate the bond strength between the sheath and hub.Per qa procedure (breezeway ii loader in-process and final inspection) using a set of pin gauges, measure and record the inner diameter (id) of the distal end of the loader.Starting off with the smallest o.D.Pin gauge inserting approximately 1 mm - 2 mm into distal tip.Increase pin gauge sizes by 0.001" until snug fit is felt.Insert a pin gauge of the appropriate french size and length into the proximal end of the loader and through the distal tip to ensure correct fit and no obstructions.Per ifu: select appropriate size of the sheath for the device to be delivered.Place a guidewire according to its own supplied instructions for use.Place dilator inside the sheath and lock both hubs together.Thread the dilator/sheath assembly over the guidewire, using a slight twisting motion.Aspirate all air from the sheath by connecting the syringe to the side port with three-way stopcock.When in desired position, unlock the dilator from the sheath and slowly pull it out to prevent air ingress.Remove the guidewire.Returned device analysis revealed the measurements of sheath and loader #1 were within manufacturing specifications as per the drawing, but the hub became detached from the sheath shaft.This would typically result from improper placement of the core pin during molding.Retraining was conducted with manufacturing and qa personnel on their hub overmolding procedure to prevent recurrence of this issue.Sheath and loader #2 revealed the measurements were within manufacturing specifications as per the drawing.No manufacturing rejects or anomalies of this type were recorded in the device history record.The sheaths and loaders passed all in-process and qa final inspections before shipping to the customer, including visual, dimensional, and mechanical testing.In conclusion, based on the information available at this time it is confirmed that sheath #1 failed to meet requirements only due to the detached hub.All other returned components were within specification.Oscor inc.Is submitting the above report to comply with 21 cfr part 803, the medical device reporting regulation.The report is based upon information obtained by oscor inc.Which the company may not have been able to investigate or verify prior to the date the report was required by fda.This report does not constitute an admission that the device, oscor inc., or its employees, caused or contributed to the event described in this report.Nor does this report reflect a conclusion by fda, oscor inc., or its employees, that the report constitutes an admission that the device, oscor inc., or its employees caused or contributed to the event described in this report.
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