MAUDE Adverse Event Report: APOLLO ENDOSURGERY OVERSTITCH ENDOSCOPIC SUTURE SYSTEM; ENDOSCOPIC TISSUE APPROXIMATION DEVICE

Model Number	ESS-G02-160
Medical Device Problem Codes	Difficult to Remove (1528); Device-Device Incompatibility (2919); Difficult to Advance (2920)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/06/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported to boston scientific corporation that an overstitch endoscopic suture system was used during an esophageal stent fixation procedure on (b)(6) 2026.During the procedure, the anchor exchange catheter was difficult to move in and out of the endoscope channel.The anchor exchange also failed to unload the anchor from the needle shaft.The procedure was completed using an alternate method.There was no patient complications reported as a result of this event.
Additional Manufacturer Narrative
Block h6: device code a1702 is being used to capture the reportable event of anchor exchange failure to retrieve.
Additional Manufacturer Narrative
Block h6 device code a1702 is being used to capture the reportable event of anchor exchange failure to retrieve.Device evaluation block h11 the device was discarded; therefore, a technical analysis could not be performed.The reported events of anchor exchange difficult to advance, device difficult to remove and anchor exchange failure to retrieve anchor could not be confirmed.A risk review of the overstitch ess was completed and confirmed that the events of anchor exchange difficult to advance, device difficult to remove and anchor exchange failure to retrieve anchor were defined in the risk documentation.These event types have been accounted for during product risk analysis to support acceptable risk benefit for the product.It was confirmed this device met manufacturing specification prior to distribution and there were no manufacturing deviations which could have contributed to the reported event.Review of the instructions for use (ifu) confirmed there was relevant content and sufficient guidance with respect to the circumstances described within this complaint.No updates are required to the ifu as a result of this event.Based on all gathered information, there is not enough evidence to determine whether the anchor exchange difficult to advance, device difficult to remove and anchor exchange failure to retrieve anchor was due to the physician's technique during the procedure or was related to a device malfunction.Without proper evaluation of the device, it remains unknown the most probable causes that contributed to the event.Also, the evidence from the product record review did not identify a potential product quality issue or new patient harm.Based on a thorough review of the reported complaint, boston scientific has assigned an investigation conclusion code of cause not established.
Event or Problem Description
It was reported to boston scientific corporation that an overstitch endoscopic suture system was used during an esophageal stent fixation procedure on (b)(6) 2026.During the procedure, the anchor exchange catheter was difficult to move in and out of the endoscope channel.The anchor exchange also failed to unload the anchor from the needle shaft.The procedure was completed using an alternate method.There was no patient complications reported as a result of this event.

• Brand Name: OVERSTITCH ENDOSCOPIC SUTURE SYSTEM
• Common Device Name: ENDOSCOPIC TISSUE APPROXIMATION DEVICE
• Manufacturer (Section D): APOLLO ENDOSURGERY; 1120 s. capital of texas hwy; bldg 1 suite 300; austin TX 78746
• Manufacturer (Section G): VIANT MEDICAL INC; 5079 33rd street; grand rapids MI 49512
• Manufacturer Contact: christina lam ; 300 boston scientific way; marlborough, MA 01752 ; 9145716918
• MDR Report Key: 24223409
• Report Number: 3005099803-2026-00373
• Device Sequence Number: 8085598
• Product Code: OCW
• UDI-Device Identifier: 20811955020661
• UDI-Public: (01)20811955020661(11)241021(17)270930(10)2024100967
• Combination Product (Y/N): N
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: K181141
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 04/29/2026

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: ESS-G02-160
• Device Catalogue Number: ESS-G02-160
• Device Lot Number: 2024100967
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/06/2026
• Supplement Date Received by Manufacturer: 04/06/2026
• Initial Report FDA Received Date: 01/30/2026
• Supplement Report FDA Received Date: 04/29/2026
• Date Device Manufactured: 10/21/2024
• 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
• Patient Sex: Unknown