inforMED
MalfunctionMZP

KIT COBAS 58/68/8800 DPX 480T US

Received Feb 11, 2026 · Event occurred Jan 16, 2026

Report 2243471-2026-00464 · MDR key 24312535

Device

Generic name

Assay, Hybridization And/or Nucleic Acid Amplification For Detection Of Hepatiti

Catalog number

09040714190

Lot number

M26462

Product problems

  • False Negative Result
  • Incorrect, Inadequate or Imprecise Result or Readings

Patient

NA · Unknown

  • No Clinical Signs, Symptoms or Conditions

Narrative

Additional Manufacturer Narrative

THE SERIAL NUMBERS OF THE ANALYZERS WERE (B)(6). THE INVESTIGATION IS ONGOING.

Description of Event or Problem

THERE WAS AN ALLEGATION OF DISCREPANT RESULTS WITH THE KIT COBAS 58/68/8800 DPX 480T US ASSAY FOR DONOR PATIENT SAMPLES TESTED ON 4 COBAS 8800 ANALYZERS. THE PRIMARY POOL OF 96 (PP96) WAS B19 NON-REACTIVE. THE MANUFACTURING POOL WAS B19 REACTIVE.

Additional Manufacturer Narrative

A FULL REVIEW OF THE CUSTOMER'S DATA WAS PERFORMED FOR ALL FOUR COBAS® 8800 INSTRUMENTS THAT WERE OPERATING WITH THE LATEST SOFTWARE. THIS EVALUATION REVEALED NO ANOMALIES OR IRREGULAR DATA PATTERNS. THE INVESTIGATION REVEALED NO EVIDENCE OF FALSE-NEGATIVE B19 RESULTS. ADDITIONALLY, NO PRODUCT QUALITY ISSUE WAS IDENTIFIED.