MAUDE Adverse Event Report: DIAGNOSTICA STAGO STA-R MAX; IVD COAGULATION DEVICE/INSTRUMENT

Model Number 59010

Device Problem Use of Incorrect Control/Treatment Settings (1126)

Patient Problem No Known Impact Or Consequence To Patient (2692)

Event Date 09/04/2019

Event Type  malfunction  

Manufacturer Narrative

The cause of the incorrect setting is still under investigation.

Event Description

A customer (b)(6)) called the (b)(6) on (b)(6) 2019 to report a bias of -100% on stago 1 (s/n (b)(4)) vs.Stago 2 (s/n (b)(4)) for protein c testing.The pc results from (b)(6) 2018 until (b)(6) 2019 on stago 1 (s/n (b)(4)) were recovering approximately half of expected levels due to an incorrect dilution factor setting.

Manufacturer Narrative

Investigation summary : the instrument (stago 1) was evaluated by both a field support engineer (fse) and a technical support specialist (tss).The sta-r max instrument was found to be within stago specifications and in good working order.However, an incorrect dilution "correction" factor was discovered for the pc-20 test.This corrector was set to 1 on stago 1 when it should have been 2.This was corrected immediately by the tss.Additionally, middleware data was reviewed by technical experts in the us and the advanced support team at the french manufacturing site reviewed system tracking files, and laboratory information system data provided by the customer.Findings : diagnostics stago has concluded that pc-20 results from (b)(6) 2019 were recovering approximately half of expected levels due the incorrect dilution factor.Root cause: the cause of the pc-20 result issue was an incorrect dilution "correction" factor setting on stago 1.Sna suspects that there was a setting error that originated by human error when stago and customer representatives met in person on (b)(6) 2018.Stago could not definitively confirm this suspected root cause, in part due to the fact that one of the persons directly involved in the meetings is no longer a stago employee and therefore could not be interviewed.Patient impact : we have no information about patients impact but we have to precise that these erroneous results could lead to a wrong treatment.Conclusion : we have concluded our investigations into this event.Please note that a vigilance will be added in the user manuals (sta-r max, sta compact max, sta satellite max) to avoid the problem : user methodology must be validated before releasing results.

• Brand Name: STA-R MAX
• Type of Device: IVD COAGULATION DEVICE/INSTRUMENT
• Manufacturer (Section D): DIAGNOSTICA STAGO; 3 allée thérésa; asnières-sur-seine, 92600 ; FR 92600
• MDR Report Key: 9195643
• MDR Text Key: 194772481
• Report Number: 8043723-2019-00010
• Device Sequence Number: 1
• Product Code: JPA
• UDI-Device Identifier: 03607450590104
• UDI-Public: (01)03607450590104(11)18092015(241)59010
• Combination Product (y/n): N
• PMA/PMN Number: K151867
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: foreign,health professional,u
• Remedial Action: Other
• Type of Report: Initial,Followup
• Report Date: 09/04/2019

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 10/16/2019
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Model Number: 59010
• Was Device Available for Evaluation?: Yes
• Date Manufacturer Received: 09/04/2019
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Other