MAUDE Adverse Event Report: GLAUKOS CORPORATION ISTENT INJECT W TRABECULAR MICRO BYPASS SYSTEM; INTRAOCULAR PRESSURE LOWERING IMPLANT

Model Number	G2-W-US
Medical Device Problem Code	Device Dislodged or Dislocated (2923)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/24/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Additional information: the device remains in the patient's eye; 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.Dislodged/dislocated 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.An adverse event appears to have occurred, but does not appear to have been a problem with the device or the way it was used.Dislodged/dislocated stent is an established risk associated with use of the device, which is clearly specified in the product's labeling.Based on the information received, the root cause of the reported event could not be conclusively identified.Mfr# reference: (b)(4).
Event or Problem Description
It was reported that following a left eye (os) cataract plus trabecular microbypass stent system procedure, a gonioscope examination on postop day three (3) identified a dislodged stent sitting in the anterior angle of the patient's eye with no associated report of patient injury.Per report, the surgeon is seeking counsel to manage the dislodged stent, and a medical expert consultation has been offered.Additional information has been requested.

• Brand Name: ISTENT INJECT W TRABECULAR MICRO BYPASS SYSTEM
• Common Device Name: INTRAOCULAR PRESSURE LOWERING IMPLANT
• 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: 21316069
• Report Number: 2032546-2025-00018
• Device Sequence Number: 15600943
• Product Code: OGO
• UDI-Device Identifier: 00853704002319
• UDI-Public: 01008537040023191031019717260131
• Combination Product (Y/N): N
• Initial Reporter State: SC
• Initial Reporter Country: US
• PMA/510(K) Number: P170043
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 02/05/2025

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: 01/31/2026
• Device Model Number: G2-W-US
• Device Lot Number: 310197
• 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: 01/24/2025
• Initial Report FDA Received Date: 02/05/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 03/06/2023
• 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
• Patient Age: 82 YR
• Patient Sex: Female