Pma/510(k) number = exempt.This report includes information known at this time.A follow-up report will be submitted should additional relevant information become available.This report is required by the fda under 21 cfr part 803 and is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement contained herein is intended to be an admission that any cook device is defective or malfunctioned, that a death or serious injury occurred, nor that any cook device caused, contributed to, or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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Blank fields on this form indicate the information is unknown, unchanged, or unavailable.Corrected information: b5, d1, d4 event description: it was reported that a user opened the packaging to a ngage nitinol stone extractor and found that the sheath near the handle was broken and the basket would not open.A new device was used to complete the procedure.There was no impact to the patient.Investigation ¿ evaluation a visual inspection and functional testing of the returned device was conducted.A document based investigation was also performed including a review of complaint history, device history record (dhr), manufacturing instructions, the instructions for use (ifu), and quality control procedures.One ngage nitinol stone extractor was returned for investigation in an open package with label.The basket sheath was kinked.The basket sheath and support sheath were no longer secured together.A functional test determined the handle did not actuate basket formation.A review of the device history record found no non-conformances related to the reported failure mode.A review of complaint history records shows no other complaints associated with the complaint device lot.Because there were no related non-conformances, adequate inspection activities have been established, there is objective evidence that the dhr was fully executed, and no other lot related complaints that have been received from the field, it was concluded that there is no evidence that nonconforming product exists in house or in the field.A review of relevant manufacturing and quality control documents was conducted.All extractors are verified to assure the basket opens and closes properly.Cook has concluded that sufficient inspection activities are in place to identify this failure mode prior to distribution.The instructions for use (ifu), provides the following information to the user related to the reported failure mode: suggested handling instructions for extractors and forceps important: excessive force could damage device.It is likely the basket sheath was initially kinked, which prevented the basket assembly from moving freely within the basket sheath, then the increased force between those two components caused the basket sheath and support sheath to separate.The cause for the damage is unknown.Excessive force may have been inadvertently applied to the device, however no information was known regarding device handling, therefore the cause of the issue could not be conclusively determined.Per the quality engineering risk assessment, no further action is required.The appropriate personnel have been notified, and we will continue to monitor for similar complaints.This report is required by the fda under 21 cfr part 803.This report is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement made in it is intended to be an admission that any cook device is defective or malfunctioned; that a death or serious injury occurred; or that any cook device caused or contributed to; or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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