MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBH INNOVANCE® D-DIMER

Model Number	INNOVANCE® D-DIMER
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	No Known Impact Or Consequence To Patient (2692)
Date of Event	08/18/2017
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
A siemens healthcare diagnostics inc.(siemens) customer service engineer (cse) and a technical application specialist (tas) were dispatched to the customer's site to determine the cause of the potential false negative d-dimer results on the bcs xp system.During the investigation, the cse observed that the calibration curve, used to run patient samples, on the bcs xp system was unacceptable.The cse changed the reagent lot, calibrated the system, replaced the sample probes, and flushed the bcs xp system of the barbicide disinfectant cleaner.The precision test, validation and lamp were within specifications.The internal qc recovered within expected ranges.Upon further investigation, siemens determined that the customer is using recycled cuvette rotors.Based on the bcs® xp system's instruction manual, cuvettes are only intended for single use.If used more than once, this could result in inaccurate measurement results.The use of recycled cuvette rotors is a user error and potentially contributed to the discordant result.Siemens has instructed the customer to discontinue the use of recycled cuvette rotors.The system is performing according to specifications.No further evaluation of this system is required.Mdr 9610806-2017-00098, mdr 9610806-2017-00099, mdr 9610806-2017-00100, and mdr 9610806-2017-00101 were filed for the same event.
Event or Problem Description
Multiple potential false negative d-dimer results were obtained on multiple patient samples using an unacceptable calibration curve on the bcs xp system.The d-dimer results were reported to the physician(s), who did not question the results.The affected patient samples were not rerun and corrected reports were not provided to the physician(s).The correct results for the affected patients are unknown.There are no known reports of patient intervention or adverse health consequences due to the potential false negative d-dimer results obtained on the patient samples on the bcs xp system.
Additional Manufacturer Narrative
Siemens healthcare diagnostics inc.(siemens) filed the initial mdr 9610806-2017-00102 on september 13, 2017.Additional information (september 18, 2017): the customer indicated that they will discontinue the use of recycled cuvette rotors.The customer resumed the use of barbicide disinfectant and the customer has not experienced any issues since they used new cuvette rotors for sample and control determination.Additional information (september 21, 2017): since september 11, 2017, all d-dimer quality controls recovered within expected ranges.The internal quality controls for the other assays also recovered within expected ranges.Additional information (september 22, 2017): a siemens headquarters support center (hsc) specialist reviewed the event and field service reports and determined that the cause of the potential false negative d-dimer results on the bcs xp system was due to the customer's use of recycled cuvette rotors.Mdr 9610806-2017-00098_s1, mdr 9610806-2017-00099_s1, mdr 9610806-2017-00100_s1, and mdr 9610806-2017-00101_s1 were filed for the same event.

• Brand Name: INNOVANCE® D-DIMER
• Common Device Name: INNOVANCE® D-DIMER
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBH; emil-von-behring-str. 76; marburg, D-350 41; GM D-35041
• MDR Report Key: 6861375
• Report Number: 9610806-2017-00102
• Device Sequence Number: 16301969
• Product Code: DAP
• UDI-Device Identifier: 00842768022821
• UDI-Public: 00842768022821
• Combination Product (Y/N): N
• Initial Reporter State: IN
• Initial Reporter Country: US
• PMA/510(K) Number: K093626
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: health professional,user faci
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 10/16/2017

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 Expiration Date: 02/26/2019
• Device Model Number: INNOVANCE® D-DIMER
• Device Catalogue Number: 10445982
• Device Lot Number: 47386
• Was Device Available for Evaluation?: No
• Was the Report Sent to FDA?: No
• Initial Date Received by Manufacturer: 08/18/2017
• Supplement Date Received by Manufacturer: 09/18/2017
• Initial Report FDA Received Date: 09/13/2017
• Supplement Report FDA Received Date: 10/16/2017
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1