MAUDE Adverse Event Report: COOK ENDOSCOPY ACUSNARE POLYPECTOMY SNARE; KNS, UNIT, ELECTROSURGICAL, ENDOSCOPIC (WITH OR WITHOUT ACCESSORIES)

Catalog Number	ASJ-1-S
Medical Device Problem Code	Failure to Conduct (1114)
Health Effect - Clinical Code	No Consequences Or Impact To Patient (2199)
Date of Event	06/24/2017
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Concomitant medical products: erbe electrosurgical unit.Investigation evaluation: a product evaluation was not performed in response to this report because the product said to be involved was not provided to cook for evaluation.The report could not be confirmed.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: we could not conduct a complete investigation because the product said to be involved was not returned for evaluation.A definitive cause for the reported observation could not be determined.The instructions for use contains the following information to assist with proper set-up and use of the device: "before using this device, follow recommendations provided by electrosurgical unit manufacturer to ensure patient safety through proper placement and utilization of patient return electrode.Ensure a proper path from patient return electrode to electrosurgical unit is maintained throughout the procedure." "inspect active cord.Cord must be free of kinks, bends, breaks and exposed wires to allow for accurate transfer of current.If an abnormality is noted, do not use active cord." "with electrosurgical unit off, prepare equipment.Securely connect active cord to device handle and electrosurgical unit.Active cord fittings should fit snugly into both device handle and electrosurgical unit.Following instructions from electrosurgical unit manufacturer, position patient return electrode and connect it to electrosurgical unit." "following electrosurgical unit manufacturer's instructions for settings, verify desired settings and activate electrosurgical unit.Note: maximum rated input voltage for this device is 2kvp-p for cut mode and 5kvp-p for coagulation mode." prior to distribution, all acusnare polypectomy snares 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: a review of the complaint history was conducted.The likelihood of occurrence is considered rare.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.
Event or Problem Description
During a polypectomy in the colon, the physician used a cook acusnare polypectomy snare.The user advanced the device into descending colon and snared the polyp.They connected the device with electrosurgical settings, but the device did not electrify.They replaced [the] high frequency electric wire to electrify the device, but it still didn't work.[the user] replaced [with a] new device to finish the procedure.
Additional Manufacturer Narrative
Concomitant medical products: erbe electrosurgical unit.Investigation evaluation: our laboratory evaluation of the product said to be involved could not confirm the report as it was described.During the evaluation of the device a visual inspection of the returned device indicated a kink at 74.8 cm in the drive wire from the distal end of the handle.The handle of the device was manipulated and the snare would open and close as intended.A functional test was performed by placing the device down a pentax colonoscope (2.8 mm channel) and the scope was placed in a curved position.The handle of the device was manipulated and the snare would open and close smoothly with no resistance felt.An additional functional test was performed by attaching the active cord.The active cord connected easily and remained securely connected.The continuity from the electrical pin to the snare head was tested with an ohm meter and passed.The device was connected to a valley lab generator and power was applied.The snare cut the simulated tissue as expected.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.The instructions for use contains the following information to assist with proper set-up and use of the device: "before using this device, follow recommendations provided by electrosurgical unit manufacturer to ensure patient safety through proper placement and utilization of patient return electrode.Ensure a proper path from patient return electrode to electrosurgical unit is maintained throughout the procedure." "inspect active cord.Cord must be free of kinks, bends, breaks and exposed wires to allow for accurate transfer of current.If an abnormality is noted, do not use active cord." "with electrosurgical unit off, prepare equipment.Securely connect active cord to device handle and electrosurgical unit.Active cord fittings should fit snugly into both device handle and electrosurgical unit.Following instructions from electrosurgical unit manufacturer, position patient return electrode and connect it to electrosurgical unit." "following electrosurgical unit manufacturer's instructions for settings, verify desired settings and activate electrosurgical unit.Note: maximum rated input voltage for this device is 2kvp-p for cut mode and 5 kvp-p for coagulation mode." prior to distribution, all acusnare polypectomy snares 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: a review of the complaint history was conducted.The likelihood of occurrence is considered rare.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.

• Brand Name: ACUSNARE POLYPECTOMY SNARE
• Common Device Name: KNS, UNIT, ELECTROSURGICAL, ENDOSCOPIC (WITH OR WITHOUT ACCESSORIES)
• Manufacturer (Section D): COOK ENDOSCOPY; 4900 bethania station rd; winston-salem NC 27105
• MDR Report Key: 6728717
• Report Number: 1037905-2017-00487
• Device Sequence Number: 653045
• Product Code: KNS
• UDI-Device Identifier: 00827002226302
• UDI-Public: (01)00827002226302(17)200220(10)W3833107
• Combination Product (Y/N): N
• Initial Reporter Country: CN
• PMA/510(K) Number: K851958
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: distributor,foreign,user faci
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 09/21/2017

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: ASJ-1-S
• Was Device Available for Evaluation?: Yes
• Was the Report Sent to FDA?: No
• Distributor Facility Aware Date: 06/24/2017
• Device Age: 4 MO
• Event Location: Hospital
• Initial Date Received by Manufacturer: 06/27/2017
• Supplement Date Received by Manufacturer: 08/30/2017
• Initial Report FDA Received Date: 07/20/2017
• Supplement Report FDA Received Date: 09/21/2017
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: OLYMPUS TJ-260V ENDOSCOPE
• Patient Age: 35 YR
• Patient Weight: 50