MAUDE Adverse Event Report: GLAUKOS CORPORATION ISTENT INFINITE TRABECULAR MICRO-BYPASS SYSTEM; AQUEOUS SHUNT

Model Number	IS3-BR
Medical Device Problem Code	Malposition of Device (2616)
Health Effect - Clinical Code	Foreign Body In Patient (2687)
Date of Event	03/26/2026
Type of Reportable Event	Malfunction
Event or Problem Description
Initially it was reported that during attempt to implant the first stent from a trabecular microbypass stent system, two (2) stents (of three (3) stents) deployed simultaneously.The report noted that the third stent was not implanted.Through follow-up, the following information was received.Per report, the first stent was implanted successfully in the patient's right eye (od), however the second stent remained in the anterior chamber (ac).Reportedly, the surgeon attempted to remove the second stent from the (ac), but was unsuccessful.The report noted that a back-up device was not used to implant additional stents, and the patient has one (1) stent implanted with the second stent remaining in the (ac).The report also noted that surgical technique contributed to the event.
Additional Manufacturer Narrative
Additional information: the device was not available; therefore, product testing on the actual device could not be performed.The device history record review of the manufacturing lot was performed and there were no non-conformities found to be related to the reported event.A review of the device labeling and associated risk documents was completed.Malpositioned stent is identified in the labeling as a known inherent risk of trabecular micro-bypass stent procedure.The ifu adequately provides instructions for stent implantation, precautions, and warnings for the proper use and handling of the device.The reported event (malpositioned stent) is an established risk associated with use of the device, which is clearly specified documented.Based on the information received, the root cause of the reported event could not be conclusively identified.Mfr# reference: (b)(4).

• Brand Name: ISTENT INFINITE TRABECULAR MICRO-BYPASS SYSTEM
• Common Device Name: AQUEOUS SHUNT
• Manufacturer (Section D): GLAUKOS CORPORATION; 229 avenida fabricante; san clemente CA 92672
• Manufacturer (Section G): GLAUKOS CORPORATION; 229 avenida fabricante; san clemente CA 92672
• Manufacturer Contact: brittany massey ; 229 avenida fabricante; san clemente, CA 92672 ; 949367960
• MDR Report Key: 25145008
• Report Number: 2032546-2026-00039
• Device Sequence Number: 16135710
• Product Code: KYF
• UDI-Device Identifier: 00853704002470
• UDI-Public: 01008537040024701032594917270630
• Combination Product (Y/N): N
• Initial Reporter Country: BR
• PMA/510(K) Number: K220032
• 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: Foreign,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 05/11/2026

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: IS3-BR
• Device Lot Number: 325949
• 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: 04/13/2026
• Initial Report FDA Received Date: 05/11/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 07/29/2025
• 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 Age: 68 YR
• Patient Sex: Male
• Patient Race: White