MAUDE Adverse Event Report: BIOMERIEUX SA PREVI COLOR GRAM INSTRUMENT V2; PREVI® COLOR GRAM INSTRUMENT V2

Model Number 414292

Device Problem Incorrect, Inadequate or Imprecise Result or Readings (1535)

Patient Problem No Consequences Or Impact To Patient (2199)

Event Type  malfunction  

Event Description

A customer in (b)(6) notified biomerieux of incorrect staining results in association with the previcolor® gram instrument v2 (ref.414292, serial number (b)(4)) while staining patient urine samples.The customer used 10¿l of urine sample when preparing the previcolor® gram slides.The samples was then adhered to the slides using air dry and burner fixation methods.The customer stated gram positive samples appeared pink in color.Biomerieux customer service advised the customer to increase the sample volume to 40 -50 ¿l.Retesting of the urine samples was performed using 40 ¿l and the correct gram stain results were obtained.The customer confirmed the incorrect stain results were not reported to the treating physician; there is no adverse event related to any patient¿s state of health.Biomerieux has initiated an internal investigation.

Manufacturer Narrative

This report was initially submitted following notification from a customer in columbia regarding incorrect staining results in association with the previcolor® gram instrument v2 (ref.414292, serial number (b)(6)) while staining patient urine samples.Local customer service visited the customer and fixed the issue.The staining issue was fixed by increasing the volume of urine from 10 ¿l to 40 ¿l.There are no specifications regarding the volume of urine to put on the previcolor® gram slides in the instructions for use (ifu) or in the user manual.However, the customer has to qualify their operational workflow.The customer has to define the appropriate amount of urine to put on their slide, and the best settings for getting the highest staining performances with their system.Under good microbiological practices, when a sample is a liquid, the smears are carried out using the centrifugation pellets.However, it could be done directly from urine (liquid) with the correct amount.Microbiology handbooks state that sufficient volume must be used for liquid samples that are not centrifuged, so the cells can be visible.The root causes of the customer¿s staining results are user error (not enough volume of urine put on the slide), and lack of information in the previ color® user manual regarding the volume of urine to put on a slide.A change request (28284) has been initiated to address the user manual.During the investigation, no issues were found regarding the previcolor® gram instrument v2 system.

• Brand Name: PREVI COLOR GRAM INSTRUMENT V2
• Type of Device: PREVI® COLOR GRAM INSTRUMENT V2
• Manufacturer (Section D): BIOMERIEUX SA; chemin de l orme; marcy l etoile 69280 ; FR 69280
• MDR Report Key: 10995239
• MDR Text Key: 248136852
• Report Number: 8020790-2020-00131
• Device Sequence Number: 1
• Product Code: KPA
• UDI-Device Identifier: 03573026415310
• UDI-Public: 03573026415310
• Combination Product (y/n): N
• PMA/PMN Number: C1 EXEMPT
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: foreign,health professional,u
• Type of Report: Initial,Followup
• Report Date: 01/26/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 12/12/2020
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: 414292
• Was Device Available for Evaluation?: No
• Date Manufacturer Received: 01/06/2021
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1