COOK ENDOSCOPY MEMORY II DOUBLE LUMEN EXTRACTION BASKET; FFL, DISLODGER, STONE, BASKET, URETHRAL, METAL
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Model Number G25149 |
Device Problem
Fracture (1260)
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Patient Problem
No Consequences Or Impact To Patient (2199)
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Event Date 08/25/2019 |
Event Type
malfunction
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Manufacturer Narrative
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Investigation evaluation: our laboratory evaluation of the product said to be involved confirmed the report and determined that the drive wire had separated from the handle.The basket was returned fully retracted and with a clear liquid substance inside the tubing.During a function test the handle would not move when attempted.The device was disassembled and it was noted that the drive wire had separated from the handle.The drive wire was slightly bent inside the white handle.There was a piece of the wire hanging out of the purple hub with nesting noted inside the purple hub.For further evaluation of the drive wire cable and basket, the catheter was cut to push the drive wire cable out of the sheath.The wire was slightly discolored near the purple hub, presumably from the clear liquid substance inside the tubing.The basket was fully formed and intact.Solder was present on the handle cannula at the joint.No other anomalies were detected with the device.The device history record for the lot number said to be involved was reviewed.A discrepancy or anomaly was not observed with the product that was released for distribution.Investigation conclusion: a definitive cause for this observation could not be determined because the actual use conditions could not be duplicated in the laboratory setting.Due to a variety of clinical conditions such as patient anatomy, endoscope position or progression of disease state, we could not reproduce the actual conditions of product usage during our laboratory analysis.This limits our ability to conclusively determine a cause.Basket advancement/retraction difficulties and nesting of the drive wire can occur if the device experiences excessive pressure.Resistance in basket movement and bends in the catheter can occur if the elevator of the endoscope is used to deflect the device at a sharp angle.The instructions for use indicate: "advance device through channel, in short increments, until basket sheath exits endoscope." the instructions for use state: "confirm desired position of basket sheath relative to target.Advance basket out of sheath.Caution: pulling on sheath while advancing or retracting basket may damage device, rendering it inoperable." prior to distribution, all memory ii double lumen extraction baskets are subjected to a visual inspection and functional testing to ensure device integrity.A review of the device history record confirmed that the lot said to be involved met all manufacturing requirements prior to shipment.Corrective action: corrective action is not warranted at this time based on the quality engineering risk assessment.Quality assurance will continue to monitor for complaint trends and reassess the risk assessment results as post market feedback continues to become available.
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Event Description
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During a stone removal procedure, the physician used a cook memory ii double lumen extraction basket.The device was advanced through the endoscope for stone removal in the bile duct.When the physician attempted to open the basket, the handle did not move and the basket could not be opened.Therefore, the device was removed from the endoscope and another manufacturer's basket device was used instead to complete the procedure.There have been no adverse effects to the patient reported.There was no reportable information at this time.The device was received for evaluation on 09-sep-2019 and it was determined that the drive wire was broken and separated from the handle.A section of the device did not remain inside the patient¿s body.The patient did not require any additional procedures due to this occurrence.According to the initial reporter, the patient did not experience any adverse effects due to this occurrence.
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