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	09/05/2024
Type of Reportable Event	Malfunction
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 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.Based on the information received, the root cause of the reported event could not be conclusively identified.Mfr# reference: 42920.
Event or Problem Description
It was reported that following a left eye (os) cataract surgery, during attempt to implant the stents from a trabecular microbypass stent system, one (1) stent dislodged intraoperatively following the removal of viscoelastic and was subsequently removed from the eye during injection/aspiration (ia).At one (1) week postop, the patient presented with the remaining stent visualized in the inferior angle.During the patient's two (2) week postop examination it was noted that the stent remained in the inferior angle without inflammation in the anterior chamber (ac).Per report, the surgeon was seeking counsel regarding the reported event.Through follow-up, the surgeon consulted with a medical expert who reported discussing ways to manage a dislodged stent based on the positioning of the stent postoperatively, and additional treatment options to manage the patient's glaucoma were also discussed.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: 20251335
• Report Number: 2032546-2024-00106
• Device Sequence Number: 18165165
• Product Code: OGO
• UDI-Device Identifier: 00853704002319
• UDI-Public: 0100853704002319
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: P170043
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 09/18/2024

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: 07/31/2026
• Device Model Number: G2-W-US
• Device Lot Number: 315628
• 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: 09/06/2024
• Initial Report FDA Received Date: 09/18/2024
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 09/05/2023
• 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 Sex: Male