Correction: h6 (annex a).Investigation ¿ evaluation: (b)(6) (united kingdom) informed cook that on 20oct2022 the balloon in an arndt endobronchial blocker set (rpn: c-aebs-5.0-65-sph-as; lot: 4888536) deflated while being used on a patient.The device was removed, but it is unknown how the procedure was completed.It was reported that there were no adverse effects to the patient due to this occurrence.Reviews of the complaint history, device history record (dhr), drawing, instructions for use (ifu), manufacturing instructions, and quality control procedures of the device, were conducted during the investigation.The complaint device was not returned; therefore, no physical examinations could be performed.However, a document-based investigation evaluation was performed.In response to this incident, cook completed a review of the product device master record (dmr) and concluded that sufficient inspection activities are in place to identify this failure mode prior to distribution.Cook also reviewed the device history record (dhr).The dhr for lot 14888536 records a failed leak test non-conformance.There are inspections in place to identify this failure before shipment, and the non-conforming device was scrapped per procedures.A database search for complaints on the reported lot found no additional complaints reported from the field.The information provided upon review of device master record and device history record does not indicate the device was manufactured out of specification.There is no evidence of nonconforming material in house or in the field.Cook also reviewed product labeling.The product ifu ,[c_t_aebs_rev6] ¿arndt endobronchial blocker set,¿ provides the following information to the user related to the reported failure mode: warnings: ¿the enclosed blocker balloon is a high-volume, low-pressure design.Excessive manipulation over a prolonged period may cause balloon rupture or deflation.¿ precautions: ¿following insertion of the blocker balloon through the multiport adapter, the balloon should be test inflated.¿ instructions for use: ¿9.Under bronchoscopic vision, inflate the balloon with air using the pilot balloon assembly.¿ based on the information provided, no device return, and the results of the investigation, cook has concluded that component failure unrelated to manufacturing or design deficiencies contributed to the event.There was not enough information provided regarding the use of the device to determine the cause of the failure.The appropriate personnel have been notified.Cook will continue to monitor for similar complaints.Per the risk assessment no further action is required.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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