MAUDE Adverse Event Report: WILSON-COOK MEDICAL INC 10 SHOOTER SAEED MULTI-BAND LIGATOR; MND, LIGATOR

Model Number	G31919
Medical Device Problem Code	Failure to Fire (2610)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/29/2024
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Investigation evaluation: the product said to be involved was returned in a white plastic bag with an open box from the lot number provided in the report.The label matches the product returned.The loading catheter, irrigation adapter, the third band, and five of the beads on the trigger cord were not returned.The photo provided shows the barrel attached to the trigger cord, with 7 bands remaining on the barrel.Our laboratory evaluation of the product said to be involved confirmed the report.The barrel returned with 7 bands remaining on it, four of bands had moved as if they had attempted to be deployed.A functional test was performed on the 7 remaining bands on the barrel, using a loading catheter and irrigation adapter from our stock.The multi-band ligator device was attached to an endoscope that was placed in a simulated gastrointestinal position with vacuum attached.The endoscope has an accessory channel that is 2.8 mm in diameter (olympus 2.8 gif q20 endoscope).The multi-band ligator barrel was attached onto the end of the endoscope.Simulated varices were placed at the end of the barrel and vacuum pulled and the remaining bands were fired.There was significant resistance as one band attempted to be deployed and when the band did eventually deploy, five deployed at one time.The last two bands deployed as intended and constricted as expected.A visual examination of the device was performed.The trigger cord was examined and some of the deployment beads were missing, only 15 of the 20 beads were present.The beads were verified for correct location.Some of the beads have moved along the trigger cord as well, most likely during attempts to deploy the bands.The beads were examined using magnification and found to be correctly filled and had no evidence of excess flash.The trigger cord was intact and not broken.The length of the trigger cord was measured between the knots and was within the tolerance.An evaluation of the handle wheel movement was performed and the wheel functioned as intended.A product-specific discrepancy that could have caused or contributed to this observation was not observed during our laboratory analysis.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: our evaluation of the returned device confirmed the report of deployment difficulty.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.Band deployment difficulty can occur if the endoscope accessory channel is compromised.In these cases, the endoscope accessory channel collapses, restricting the trigger cord and preventing proper band deployment.The instructions for use contain the following statement: "use of an endoscope in a sound state of repair is a prerequisite for a successful multi-band ligation procedure." band deployment difficulty can also occur if the trigger cord is not properly seated in the handle assembly.The instructions for use advise the user: "note: knot must be seated into hole or handle will not function properly." a precaution in the instructions for use state: "it is vital that the integrity of the working channel is intact as grooves or other obstructions in the working channel can potentially cause the string to catch, resulting in band deployment difficulty." it is possible that this could lead to band deployment difficulty and damage to the trigger cord as well.Prior to distribution, all 10 shooter saeed multi-band ligators are subjected to a visual inspection 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 and esophageal varices ligation, the physician used a cook 10 shooter saeed multi-band ligator.It was reported that the user opened the package and installed the device correctly and successfully deployed the first and second bands, but third band could not be deployed by rotating the handle, and the endoscope body twisted.The user removed the device and installed a new one to complete the procedure.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.

• Brand Name: 10 SHOOTER SAEED MULTI-BAND LIGATOR
• Common Device Name: MND, LIGATOR
• Manufacturer (Section D): WILSON-COOK MEDICAL INC; 4900 bethania station rd; winston-salem NC 27105
• Manufacturer (Section G): COOK ENDOSCOPY; 4900 bethania station rd; winston-salem NC 27105
• Manufacturer Contact: sabrina o'brien ; 4900 bethania station rd; winston-salem, NC 27105 ; 3367440157
• MDR Report Key: 20035411
• Report Number: 1037905-2024-00477
• Device Sequence Number: 3075168
• Product Code: MND
• UDI-Device Identifier: 00827002319196
• UDI-Public: (01)00827002319196(17)240915(10)W4765177
• Combination Product (Y/N): N
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Distributor
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 08/21/2024

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 Expiration Date: 09/15/2024
• Device Model Number: G31919
• Device Catalogue Number: MBL-U-10
• Device Lot Number: W4765177
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 08/13/2024
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 07/30/2024
• Initial Report FDA Received Date: 08/22/2024
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 09/15/2023
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: OLYMPUS GIF-H260
• Patient Age: 55 YR
• Patient Sex: Male
• Patient Weight: 46 KG