MAUDE Adverse Event Report: WILSON-COOK MEDICAL INC 6 SHOOTER SAEED MULTI-BAND LIGATOR; LIGATOR, ESOPHAGEAL

Model Number	G22692
Medical Device Problem Code	Failure to Fire (2610)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/22/2026
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 and tray from the lot number provided in the report.The label matches the product returned.Some of the bands were not returned with the device.Our laboratory evaluation of the product said to be involved confirmed the report.Two bands remained on the barrel, and one leg of the trigger cord appeared to be loose between the bands.A functional test was performed on the 2 remaining bands on the barrel.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.It was observed that the 2 remaining bands deployed with difficulty.As the amber band was deploying, it was taking longer than expected, and then the last black band deployed with the amber band onto the simulated varices due to the difficulty experienced during deployment.The bands did not constrict as expected.This is due to the functional testing being conducted at room temperature instead of at body temperature as the test was only intended to test for successful deployment.A visual examination of the device was performed.The trigger cord was examined and all twelve deployment beads were present.The beads were verified for correct location.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 laboratory evaluation of the returned device confirmed the report.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 6 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: based on the quality engineering risk assessment no corrective action is warranted at this time.A review of the complaint history was conducted.Based on this review, the likelihood of this type of report is rare.Quality assurance will continue to monitor for complaint trends.
Event or Problem Description
During an endoscopic variceal ligation in the esophagus, the physician used a cook 6 shooter saeed multi-band ligator.It was reported that after two bands of ligation, the third band could not be released.After removing the endoscope and reinstalling the device, it still could not be released.The endoscope body had been severely twisted by the trigger cord of the device.After replacing with another box of mbl-6-f, the remaining varicose vein ligation was completed.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: 6 SHOOTER SAEED MULTI-BAND LIGATOR
• Common Device Name: LIGATOR, ESOPHAGEAL
• Manufacturer (Section D): WILSON-COOK MEDICAL INC; 4900 bethania station rd; winston salem NC 27105
• Manufacturer (Section G): WILSON-COOK MEDICAL INC; 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: 25406609
• Report Number: 1037905-2026-00261
• Device Sequence Number: 21516839
• Product Code: MND
• UDI-Device Identifier: 00827002226920
• UDI-Public: (01)00827002226920(17)260611(10)W4946983
• Combination Product (Y/N): N
• Initial Reporter Country: CN
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Company Representative,Distributor
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 06/05/2026

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: 06/11/2026
• Device Model Number: G22692
• Device Catalogue Number: MBL-6-F
• Device Lot Number: W4946983
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 05/26/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 05/10/2025
• Initial Report FDA Received Date: 06/05/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 06/11/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: FUJI EG-200 GASTROSCOPE
• Patient Age: 59 YR
• Patient Sex: Male
• Patient Weight: 50 KG