MAUDE Adverse Event Report: WILSON-COOK MEDICAL INC HERCULES 3 STAGE BALLOON ESOPHAGEAL; DILATOR, ESOPHAGEAL

Model Number	G31927
Medical Device Problem Code	Fluid/Blood Leak (1250)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/28/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
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 report states that negative pressure was not applied to the balloon prior to advancement through the endoscope.A possible contributing factor to balloon material damage and/or balloon leakage is failure to apply negative pressure to the balloon dilator prior to advancement through the endoscope.Negative pressure will also aid in balloon preservation and optimize balloon performance.The instructions for use direct the user "to facilitate passage through the endoscope, apply negative pressure to the catheter." in addition, the user is further instructed to "maintain balloon deflation with negative pressure and introduce into the accessory channel of the endoscope, advancing in short increments until the dilator is completely visualized endoscopically." a leakage can also occur if the balloon comes into contact with a sharp object or a burr in the endoscope channel.Another possible contributing factor to a leakage in the balloon material is using a compromised inflation device to inflate the balloon.If the pressure reading of the inflation device is inaccurate, this could contribute to over inflation, possibly resulting in damage to the balloon material.Prior to distribution, all hercules 3 stage balloons esophageal 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: 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.Additional comments: based on the information provided that negative pressure was not applied to the balloon prior to advancement through the endoscope, a cook representative has been directed to contact the medical facility involved in an effort to promote further education and understanding related to appropriate usage of this product.
Event or Problem Description
During an endoscopic procedure in the esophagus, the physician used a cook hercules 3 stage balloon esophageal.It was reported [that] when they got to 20 [atm], the balloon burst at the distal end.They finished the procedure by removing the scope and balloon and used another device.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: HERCULES 3 STAGE BALLOON ESOPHAGEAL
• Common Device Name: DILATOR, 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
• Manufacturer Contact: sabrina o¿brien ; 4900 bethania station rd; winston salem, NC 27105 ; 3367440157
• MDR Report Key: 24433394
• Report Number: 1037905-2026-00093
• Device Sequence Number: 10297916
• Product Code: KNQ
• UDI-Device Identifier: 00827002319271
• UDI-Public: (01)00827002319271(17)281105(10)W4984249
• Combination Product (Y/N): N
• Initial Reporter State: ND
• Initial Reporter Country: US
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 02/24/2026

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 Model Number: G31927
• Device Catalogue Number: HBD-18-19-20
• Device Lot Number: W4984249
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/28/2026
• Initial Report FDA Received Date: 02/24/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 11/05/2025
• 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: UNKNOWN ENDOSCOPE MAKE AND MODEL
• Patient Sex: Unknown