MAUDE Adverse Event Report: Alcon Research, LLC - Houston CONSTELLATION ULTRAVIT Probe; Vitrectomy, Instrument Cutter

Catalog Number	8065751570
Medical Device Problem Code	Failure to Cut (2587)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/30/2026
Type of Reportable Event	Malfunction
Event or Problem Description
A physician reported that probe had poor cutting during vitrectomy surgery.The surgery was completed on same day by replacing it with new product.There was no patient impact.
Additional Manufacturer Narrative
Investigation including root cause analysis is in progress.A supplemental mdr will be filed as necessary in accordance with 21 cfr 803.56 when additional reportable information becomes available.The manufacturer internal reference number is: (b)(4).

• Brand Name: CONSTELLATION ULTRAVIT Probe
• Common Device Name: Vitrectomy, Instrument Cutter
• Manufacturer (Section D): Alcon Research, LLC - Houston; 9965 buffalo speedway; houston TX 77054
• Manufacturer (Section G): Alcon Research, LLC - Houston; 9965 buffalo speedway; houston TX 77054
• Manufacturer Contact: jonathan schlech ; 6201 south freeway; mail stop ab2-6; fort worth, TX 76134 ; +1(800)757-9780
• MDR Report Key: 50883316
• Report Number: 1644019-2026-04918
• Device Sequence Number: 13218018
• Product Code: MLZ
• UDI-Device Identifier: 00380657515707
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K093305
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 09/24/2026

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 Catalogue Number: 8065751570
• Device Lot Number: 17F73K
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Initial Date Received by Manufacturer: 09/03/2026
• Initial Report FDA Received Date: 09/24/2026
• Date Device Manufactured: 06/02/2025
• 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