Investigation ¿ evaluation cook was informed by (b)(6) hospital (taiwan) on 12jan2022 that the catheter in a thal-quick chest tube set (rpn: c-tqts-2400, lot#: 14013265) separated.The device was placed in the patient¿s right chest for post-surgical drainage and was connected to a drainage bottle.The day after the patient was transferred to the ward, separation of the universal hub (funnel end) of the catheter from the catheter shaft was discovered.As a result, the patient suffered a pneumothorax and required an additional procedure to replace the catheter with a competitor¿s product.Reviews of documentation including the complaint history, device history record (dhr), quality control procedures, and instructions for use (ifu), as well as a visual inspection and dimensional verification of the returned device, were conducted during the investigation.One used device was returned.The ¿funnel¿ end of the catheter was disconnected from the catheter tubing.Adhesive appeared to be present.Upon measuring the returned device, the device measured within specification.Cook has concluded that the device was manufactured to specification additionally, a document-based investigation evaluation was performed.A review of the device master record (dmr) concluded that sufficient inspection activities are in place to identify this failure mode prior to distribution.A review of the dhrs for the reported complaint device lot 14013265 found no additional complaints or non-conformances.Lot ic13770883 and ic13770885 has a possible related nonconformance.This step is checked 100% per qc.All nonconforming devices were scrapped prior to further processing.Sub-assembly lots sa13465984, sa13555803, sa13745411, and sa13836699 revealed no recorded non-conformances relevant to the failure mode.Based on the available information, cook has concluded that there is no evidence of nonconforming material in house or in the field.Cook requested a supplier investigation be performed for lots (2080966.1, 2095064.1, 2127283.1, 2127284.1, 2128041.1, and 2128973.1).The supplier performs visual, dimensional, and tensile testing on a sampling basis to evaluate the product.The supplier reviewed the dhr for each affected lot and determined there were related nonconformances.All nonconforming devices were scrapped.The supplier reviewed the photograph of the returned devices similar to the appearance of the product after tensile testing.It appears that the device was subjected to a tensile (pulling) load greater than the bond between the molded hub and extruded tube could withstand.The supplier stated that there are not any indications that the product failed to meet specifications.A tensile load was applied to the device resulting in the separation.Cook also reviewed product labeling.The product ifu, [t_thal_rev11] thal-quick chest tube sets and trays provides the following information to the user related to the reported failure mode: ¿instructions for use with the wire guide still positioned within the pleural space, advance the chest tube inserter/chest tube assembly over the wire guide and into the pleural space.Note: if resistance is encountered during chest tube assembly insertion, determine the cause of resistance and take necessary action to relieve resistance before proceeding.Note: it is important to advance the chest tube assembly into the pleural space in the same line as the wire guide.This will make introduction easier and avoid kinking of the wire guide.Note: the distal end of the chest tube inserter should not be advanced beyond the distal end of the wire guide.Remove the wire guide and chest tube inserter, leaving the chest tube in place.Note: it is important that all side ports of the chest tube are positioned within the pleural space.The chest tube can now be sutured to the skin and is ready for use.How supplied supplied sterilized by ethylene oxide gas in peel-open packages.Intended for one-time use.Sterile if package is unopened or undamaged.Do not use the product if there is doubt as to whether the product is sterile.Store in a dark, dry, cool place.Avoid extended exposure to light.Upon removal from package, inspect the product to ensure no damage has occurred." there are no relevant instructions/precautions/warnings.Based on the information provided, inspection of the returned device, and the results of the investigation, cook concluded the cause of event to be component failure unrelated to a manufacturing deficiency.Based on the supplier¿s evaluation, it appears the device was subjected to a tensile (pulling) load greater than the bond between the molded hub and extruded tube could withstand.It is unknown how or when after the device was placed that the failure occurred.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.
|