K Number
K051693
Device Name
MODIFICATION TO BAYER ADVIA 2120 HEMATOLOGY ANALYZER WITH AUTOSLIDE SYSTEM
Date Cleared
2005-12-07

(167 days)

Product Code
Regulation Number
864.5200
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The ADVIA® 2120 Nucleated Red Blood Cell (nRBC) method is intended to provide an in vitro diagnostic, quantitative determination of nucleated red blood cells in peripheral whole blood.
Device Description
The technological and methodological principles of the ADVIA 2120 with Autoslide used for the quantitative measurement of blood cells in whole blood specimens will be used without change except for the addition of a new methodology to quantitate nucleated red blood cells and correct for white blood cells in peripheral whole blood. The ADVIA 2120 Nucleated Red Blood Cell (nRBC) method is described below: a) The ADVIA 2120 nRBC Analysis method uses histogram analysis routines to analyze the unstained region of the Peroxidase channel as well as an arithmetic algorithm that combines counts from the Peroxidase and Basophil/Lobularity channels to enumerate nRBCs. b) The analysis corrects the White Blood Cell Count for the presence of nRBCs, as well as the WBC Differential. It reports the corrected WBC count and the corrected differential. The new nRBC method will report the following Red Blood Cell Parameters- 1) % nucleated Red Blood Cells (% nRBC) 2) absolute nRBC (# of nRBC per microliter)
More Information

Not Found

No
The description focuses on histogram analysis and arithmetic algorithms, which are traditional signal processing techniques, not AI/ML. There is no mention of AI, ML, or related concepts.

No
The device is an in vitro diagnostic tool used for quantitative determination of nucleated red blood cells, not for treating or managing a disease.

Yes
The "Intended Use / Indications for Use" section explicitly states that the device is "intended to provide an in vitro diagnostic, quantitative determination of nucleated red blood cells in peripheral whole blood," which is the definition of a diagnostic device.

No

The device is described as a "method" on the ADVIA 2120 with Autoslide, which is a hematology analyzer. The description details the use of histogram analysis and arithmetic algorithms within the existing hardware platform (ADVIA 2120). This indicates it's a software component or feature added to a hardware medical device, not a standalone software-only device.

Yes, based on the provided information, this device is an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The "Intended Use / Indications for Use" section explicitly states that the method is intended to provide an in vitro diagnostic, quantitative determination of nucleated red blood cells in peripheral whole blood. This directly aligns with the definition of an IVD, which are medical devices used to examine specimens taken from the human body to provide information for diagnosis, monitoring, or treatment.
  • Device Description: The description details how the device analyzes blood specimens (peripheral whole blood) to quantify nRBCs and correct other blood cell counts. This process is performed in vitro (outside the living body).
  • Anatomical Site: The specified anatomical site is "peripheral whole blood," which is a specimen taken from the body for analysis.

The other sections, while providing details about the device's functionality and performance, further support its classification as an IVD by describing how it processes and analyzes biological samples.

N/A

Intended Use / Indications for Use

The ADVIA® 2120 Nucleated Red Blood Cell (nRBC) method is intended to provide an in vitro diagnostic, quantitative determination of nucleated red blood cells in peripheral whole blood.

Product codes

GKL, GKZ, KPA

Device Description

The technological and methodological principles of the ADVIA 2120 with Autoslide used for the quantitative measurement of blood cells in whole blood specimens will be used without change except for the addition of a new methodology to quantitate nucleated red blood cells and correct for white blood cells in peripheral whole blood.

The ADVIA 2120 Nucleated Red Blood Cell (nRBC) method is described below:

  • a) The ADVIA 2120 nRBC Analysis method uses histogram analysis routines to analyze the unstained region of the Peroxidase channel as well as an arithmetic algorithm that combines counts from the Peroxidase and Basophil/Lobularity channels to enumerate nRBCs.
  • b) The analysis corrects the White Blood Cell Count for the presence of nRBCs, as well as the WBC Differential. It reports the corrected WBC count and the corrected differential.

The new nRBC method will report the following Red Blood Cell Parameters-

    1. % nucleated Red Blood Cells (% nRBC)
    1. absolute nRBC (# of nRBC per microliter)

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

peripheral whole blood

Indicated Patient Age Range

Not Found

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

The information and performance data provided as part of this submission demonstrate that the nRBC method on the ADVIA 2120 with Autoslide is substantially equivalent to products already in commercial distribution

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s)

K042251

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 864.5200 Automated cell counter.

(a)
Identification. An automated cell counter is a fully-automated or semi-automated device used to count red blood cells, white blood cells, or blood platelets using a sample of the patient's peripheral blood (blood circulating in one of the body's extremities, such as the arm). These devices may also measure hemoglobin or hematocrit and may also calculate or measure one or more of the red cell indices (the erythrocyte mean corpuscular volume, the mean corpuscular hemoglobin, or the mean corpuscular hemoglobin concentration). These devices may use either an electronic particle counting method or an optical counting method.(b)
Classification. Class II (performance standards).

0

DEC 7 2005

510(k) SUMMARY OF SAFETY AND EFFECTIVENESS ADVIA® 2120 with Autoslide and NRBC Method

This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of the Safe Medical Device Act of 1990 and 21 CFR 807.92.

The assigned 510(k) number is: K051693

1. Submitted By:

Andres Holle Manager, Regulatory Affairs Bayer HealthCare LLC Diagnostics Division 511 Benedict Avenue Tarrytown, NY 10591 Telephone: (914) 524-3494 FAX: (914) 524-2500 E-mail: andres.holle.b(@bayer.com

2. Intended Use

The ADVIA 2120 nRBC method is intended to provide an in vitro diagnostic, quantitative determination of nucleated red blood cells in peripheral whole blood.

3. Predicate Device

Proprietary Name: Bayer ADVIA 2120 Hematology Analyzer with Autoslide Common name: Automated Hematology Analyzer with Autoslide Classification name: Automated hematology complete blood cell counter (§ 864.5200), differential cell counter (§ 864.5220) Classification number: 21 CFR Parts 864.5200, 864.5220, Class II 510(k) Number: K042251

nRBC counts are performed by manual methods that are well established as reference methods in clinical laboratories and consistent with NCCLS H-20A.

1

4. Device Information

Proprietary Name: Bayer ADVIA 2120 Hematology Analyzer with Autoslide System Common name: Automated Hematology Analyzer and Automated Slide Maker and Stainer Classification name: Automated hematology complete blood cell counter (§ 864.5200), differential cell counter (§ 864.5220) and automated slide stainer (§ 864.3800) Classification number: 21 CFR Parts 864.5200, 864.5220, 864.3800 , Class II

The only change between the predicate device and the new device is the introduction of a new method for nucleated red blood cell analysis.

5. Device Description

The technological and methodological principles of the ADVIA 2120 with Autoslide used for the quantitative measurement of blood cells in whole blood specimens will be used without change except for the addition of a new methodology to quantitate nucleated red blood cells and correct for white blood cells in peripheral whole blood.

The ADVIA 2120 Nucleated Red Blood Cell (nRBC) method is described below:

  • a) The ADVIA 2120 nRBC Analysis method uses histogram analysis routines to analyze the unstained region of the Peroxidase channel as well as an arithmetic algorithm that combines counts from the Peroxidase and Basophil/Lobularity channels to enumerate nRBCs.
  • b) The analysis corrects the White Blood Cell Count for the presence of nRBCs, as well as the WBC Differential. It reports the corrected WBC count and the corrected differential.

The new nRBC method will report the following Red Blood Cell Parameters-

    1. % nucleated Red Blood Cells (% nRBC)
    1. absolute nRBC (# of nRBC per microliter)

2

6. Summary of Technological Characteristics

Nucleated red blood cells (nRBCs, erythroblasts, normoblasts, or normocytes) are immature red blood cells that are normally found only in the bone marrow of healthy adults. Cells of this stage are usually observed in the peripheral blood of newborn infants or in patients with responses to hemolytic crisis.

The presence of nRBCs in peripheral blood can falsely elevate the WBC count in automated hematology analyzers and interfere with the accuracy of the automated WBC differential.

The ADVIA 2120 nRBC method reports nRBC counts for whole blood samples with either 200 or more nRBC/uL, or with at least 2% nRBCs with a WBC count of at least 3,000/ uL.

The method reports both an absolute nRBC count (10°/L) and a percentage count (#NRBC/100 WBC). The software also corrects the WBC count for nRBC, recalculates the WBC differential, and recalculates %MN and %PMN.

The method identifies nRBCs by nuclear size in the peroxidase negative area of the Peroxidase channel, and by nuclear density and volume in the Basophil/Lobularity channel.

In the unstained region of the Peroxidase channel cytogram, nRBC nuclei are located between the noise and lymphocytes. They often form distinct populations that are analyzed to produce counts.

In the Basophil/Lobularity channel cytogram, nRBC nuclei are located in the polymorphonuclear region, rather than the mononuclear region, because they are denser than lymphocyte or monocyte nuclei. Since they are not the nuclei of polymorphonuclear cells, the difference between the number of nuclei in this region and the sum of neutrophils and eosinophils in the Peroxidase channel may equal the nRBC count.

7. Conclusion

The information and performance data provided as part of this submission demonstrate that the nRBC method on the ADVIA 2120 with Autoslide is substantially equivalent to products already in commercial distribution

Paul de

Andres Holle Regulatory Affairs Bayer Corporation 511 Benedict Avenue Tarrytown, New York 10591-5097

6/21/2005
Date

Date

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Image /page/3/Picture/1 description: The image shows the seal of the Department of Health & Human Services (HHS). The seal features a stylized eagle with three lines representing its wings, and the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" encircles the eagle. The text is arranged in a circular fashion around the eagle, with "DEPARTMENT OF HEALTH & HUMAN SERVICES" on the left side and "USA" on the right.

Food and Drug Administration 2098 Gaither Road Rockville MD 20850

Mr. Andres Holle Manager. Regulatory Affairs Bayer HealthCare LLC Diagnostics Division 511 Benedict Avenue Tarrytown, New York 10591

2005 DEC 7

Re: K051693

Trade/Device Name: ADVIA® 2120 with nRBC Method Regulation Number: 21 CFR § 864.5200 Regulation Name: Automated cell counter Regulatory Class: II Product Code: GKL, GKZ, KPA Dated: October 26, 2005 Received: October 27, 2005

Dear Mr. Holle:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate 10 rate exaction to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in Title 21, Code of Federal Regulations (CFR), Parts 800 to 895. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must or any I with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Parts 801 and 809); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820). This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

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If you desire specific information about the application of labeling requirements to your device, or questions on the promotion and advertising of your device, please contact the Office of In Vitro Diagnostic Device Evaluation and Safety at (240) 276-0484. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html

Sincerely yours,

lobatz Beckerh

Robert L. Becker, Jr., MD, P Director Division of Immunology and Hematology Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known): 4051693

Device Name: ADVIA® 2120 with nRBC Method

Indications For Use:

The ADVIA® 2120 Nucleated Red Blood Cell (nRBC) method is intended to provide an in vitro diagnostic, quantitative determination of nucleated red blood cells in peripheral whole blood.

Prescription Use X (Part 21 CFR 801 Subpart D)


AND/OR

Over-The-Counter Use (21 CFR 807 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)

Josephine Bautista

Division Sign-Off

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Office of In Vitro Diagnostic Device Evaluation and Safety

510(k) K051693