MAUDE Adverse Event Report: VENTANA MEDICAL SYSTEMS INC. BENCHMARK ULTRA SYSTEM; SLIDE STAINER, AUTOMATED

Catalog Number	05342716001
Medical Device Problem Codes	Failure to Transmit Record (1521); Data Problem (3196)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/26/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The investigation is ongoing.
Event or Problem Description
There was an allegation of a staining issue with the benchmark ultra system.The customer reports that the pathologist originally ordered a mart 1 stain, then deleted the mart 1 and recreated it for prame.However, the stain was completed for mart 1.The label was printed after the order was placed at 9:22 am, and the run started at 11:40 am.The run report shows mart1 and the protocols were verified to be correct.

• Brand Name: BENCHMARK ULTRA SYSTEM
• Common Device Name: SLIDE STAINER, AUTOMATED
• Manufacturer (Section D): VENTANA MEDICAL SYSTEMS INC.; 1910 e innovation park dr; tucson AZ 85755
• Manufacturer (Section G): VENTANA MEDICAL SYSTEMS INC.; 1910 e innovation park dr; tucson AZ 85755
• Manufacturer Contact: natalie catton ; 9115 hague road; indianapolis, IN 46250 ; 9253534412
• MDR Report Key: 24931338
• Report Number: 2028492-2026-01504
• Device Sequence Number: 10652232
• Product Code: KPA
• UDI-Device Identifier: 04015630981052
• UDI-Public: 04015630981052
• Combination Product (Y/N): N
• Initial Reporter State: MI
• Initial Reporter Country: US
• PMA/510(K) Number: EXEMPT
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 06/03/2026

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: 05342716001
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 03/26/2026
• Supplement Date Received by Manufacturer: 05/14/2026
• Initial Report FDA Received Date: 04/20/2026
• Supplement Report FDA Received Date: 06/03/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Sex: Unknown