MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS INC. ATELLICA CH CARBON DIOXIDE, CONCENTRATED (CO2_C)

Model Number ATELLICA CH CARBON DIOXIDE, CONCENTRATED (CO2_C)

Device Problem High Test Results (2457)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 12/06/2022

Event Type  malfunction  

Manufacturer Narrative

A united states customer contacted a siemens customer care center and reported that a falsely elevated concentrated carbon dioxide (co2_c) result was obtained on a patient sample on an atellica ch 930 analyzer.The quality control was within range on the day of event.The customer indicated that the pack calibration on current pack in use was expired and lot calibration was in use at the time of sample processing.After noticing the issue, the customer recalibrated the well using a lot calibration and resolved the issue.Siemens is investigating the issue.

Event Description

A falsely elevated concentrated carbon dioxide (co2_c) result was obtained on a patient sample on an atellica ch 930 analyzer.The erroneous result produced a negative anion gap, failed delta check, and the erroneous result was not reported to the physician(s).The sample was repeated on the original instrument.The repeat result was lower than the erroneous result and gave a positive anion gap.The repeat result was reported, as the correct result, to the physician(s).There are no known reports of patient intervention or adverse health consequences due to the falsely elevated co2_c result.

Manufacturer Narrative

Siemens filed the initial mdr 2432235-2022-00397 on 28-dec-2022.Additional information (04-jan-2023): siemens reviewed the instrument data and noted that the quality control (qc) recovery was within acceptable limits prior to processing the initial run of affected sample.The instrument files demonstrated that initial and repeat runs were processed within 40 minutes of each other.The customer calibrated concentrated carbon dioxide (co2_c) assay prior to repeating the sample and the repeat run was performed with a new sample pre-dilution.Since qc recovery was within acceptable limits prior to processing the initial run of sample id (b)(6), an improper calibration has been ruled out as a contributing factor.Siemens reviewed the process error log from 05-dec-2022 through 07-dec-2022 and observed 4 sample aspiration errors and 10 sample clog detect errors, which delineates that samples of poor quality were potentially processed on the instrument.Siemens further investigated the issue and concluded that poor sample quality and the presence of gel, fibrin, micro clots, and/or the presence of red cells, white cells, and platelets, impacting the proper sample aspiration and delivery of the sample, potentially contributed to the falsely elevated co2_c result.The investigation conclusions code in section h6 was updated based on the additional information.The device is performing according to specifications.No further evaluation of this device is required.

• Brand Name: ATELLICA CH CARBON DIOXIDE, CONCENTRATED (CO2_C)
• Type of Device: ATELLICA CH CARBON DIOXIDE, CONCENTRATED (CO2_C)
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS INC.; 511 benedict avenue; tarrytown NY 10591
• Manufacturer (Section G): SIEMENS HEALTHCARE DIAGNOSTICS INC.; 500 gbc drive, po box 6101; registration # 2517506; newark DE 19714 6101
• Manufacturer Contact: christina lam ; 511 benedict avenue; tarrytown, NY 10591 ; 9142550090
• MDR Report Key: 16060613
• MDR Text Key: 308498664
• Report Number: 2432235-2022-00397
• Device Sequence Number: 1
• Product Code: KHS
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: K100289
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,User Facility
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date: 01/12/2023

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
• Device Operator: Health Professional
• Device Expiration Date: 09/12/2023
• Device Model Number: ATELLICA CH CARBON DIOXIDE, CONCENTRATED (CO2_C)
• Device Catalogue Number: 11097521
• Device Lot Number: 120235
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 12/06/2022
• Initial Date FDA Received: 12/28/2022
• Supplement Dates Manufacturer Received: 01/04/2023
• Supplement Dates FDA Received: 01/12/2023
• Was Device Evaluated by Manufacturer?: No
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Reuse
• Patient Sequence Number: 1