K Number
K093394
Date Cleared
2010-04-08

(160 days)

Product Code
Regulation Number
864.5220
Reference & Predicate Devices
N/A
Predicate For
N/A
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The BC-3200 auto hematology analyzer is a quantitative, automated hematology analyzer and leukocyte differential counter to be used in clinical laboratories for In Vitro Diagnostic purpose. The intended use of BC-3200 Auto Hematology Analyzer is to identify the normal patient, with all normal system-generated parameters, and to flag or identify patient results that require additional studies.

Device Description

The BC-3200 Auto Hematology Analyzer is a quantitative, automated hematology analyzer and leukocyte differential counter for In Vitro Diagnostic Use in clinical laboratories. It is only to be used by trained medical professionals to identify the normal patient, with all normal system-generated parameters, and to flag or identify patient results that require additional studies. The analyzer provides analysis results of 16 parameters (listed below) of human blood and three histograms. The BC-3200 Auto Hematology Analyzer system consists of the analyzer, reagents (M-30D DILUENT, M-30R RINSE, M-30CFL LYSE, M-30E E-Z CLEANSER and M-30P PROBE CLEANSER), controls (BC-3D Hematology Control), calibrator (SC-CAL PLUS Hematology Calibrator) and accessories. The two independent measurement methods used in this analyzer are: the Coulter method for determining the WBC, RBC, and PLT data and the colorimetric method for determining the HGB.

AI/ML Overview

Here's a summary of the acceptance criteria and study details for the BC-3200 Auto Hematology Analyzer, based on the provided text:

1. Table of Acceptance Criteria and Reported Device Performance

The acceptance criteria are generally implied by the performance characteristics tested and compared to a predicate device (COULTER® AC-T diff 2™ Analyzer) and/or established laboratory standards (e.g., CLSI guidelines for reproducibility, linearity). The provided document mostly reports the observed performance without explicit pre-defined "acceptance criteria" values in all cases, but rather demonstrates that the device performs comparably to the predicate or meets general expectations for such a device. Where specific target criteria are stated (e.g., for carryover), they are included.

Performance CharacteristicParameterAcceptance Criteria (Implied/Stated)Device Performance (Reported)
ReproducibilityWBC (CV%)-Low: 0.99 - 1.84%Normal: 0.99 - 1.18%High: 0.93 - 1.85%
RBC (CV%)-Low: 1.06 - 1.76%Normal: 0.73 - 0.78%High: 0.60 - 1.24%
HGB (CV%)-Low: 0.8 - 1.1%Normal: 0.4 - 0.8%High: 0.7 - 0.8%
MCV (CV%)-Low: 0.28 - 0.62%Normal: 0.25 - 0.45%High: 0.71%
PLT (CV%)-Low: 3.12 - 8.39%Normal: 1.95 - 3.70%High: 1.58 - 2.32%
Inter-Laboratory PrecisionWBC (CV%)-Low: 2.35%Normal: 1.95%High: 1.20%
Gran (CV%)-Low: 5.20%Normal: 1.46%High: 0.49%
Lymph (CV%)-Low: 3.60%Normal: 4.09%High: 6.02%
Mid (CV%)-Low: 4.36%Normal: 2.86%High: 8.84%
RBC (CV%)-Low: 1.34%Normal: 1.81%High: 1.59%
HGB (CV%)-Low: 1.11%Normal: 1.78%High: 1.71%
MCV (CV%)-Low: 1.99%Normal: 1.43%High: 1.74%
PLT (CV%)-Low: 5.56%Normal: 3.60%High: 1.89%
LinearityWBCError acceptance criteria not explicitly stated, but comparable to predicate's ±0.3 or ±5%Proportional error up to 32.4% for lowest concentration (0.625%), but generally within +/- 5% for concentrations 2.5% and above.
RBCError acceptance criteria not explicitly stated, but comparable to predicate's ±0.05 or ±5.0%Proportional error up to -6.9% for 5% dilution, generally within +/- 3.6% for higher dilutions.
HGBError acceptance criteria not explicitly stated, but comparable to predicate's ±0.2 or ±3.0%Proportional error up to -2.7% for 10% dilution, generally within +/- 1.7% for higher dilutions.
PLTError acceptance criteria not explicitly stated, but comparable to predicate's ±10.0 or ±10.0%Proportional error up to 55.2% for 1.25% dilution, but generally within +/- 27.3% for concentrations 2.5% and above. Error generally higher at very low concentrations.
CarryoverWBC0.5% or less0% (in both whole blood and high level control tests)
RBC0.5% or less0.46% (whole blood), 0% (high level control)
HGB0.5% or less0.46% (whole blood), 0% (high level control)
PLT1.0% or less0% (in both whole blood and high level control tests)
Correlation to Predicate DeviceAll parametersCorrelation coefficients (r) close to 1, small difference ratio/slope ~1, intercept ~0.WBC: r=0.9990Gran%: r=0.9581Mid%: r=0.3926 (not strong)Lymph%: r=0.9709Gran#: r=0.9961Mid#: r=0.8701Lymph#: r=0.9886RBC: r=0.9955HGB: r=0.9972HCT: r=0.9923MCV: r=0.9778MCH: r=0.9712MCHC: r=0.6038 (not strong)RDW: r=0.9387PLT: r=0.9943MPV: r=0.9169
Correlation to Manual DifferentialLymph%Correlation coefficient (r) close to 1.r=0.95
Mid%Correlation coefficient (r) close to 1.r=0.57 (not strong)
Gran%Correlation coefficient (r) close to 1.r=0.94
WBC Histogram FlaggingAgreementImplied satisfactory agreement for flagging.Agreement: 82.5%False Positive Ratio: 10.6%False Negative Ratio: 45%

2. Sample Sizes Used for Test Set and Data Provenance

  • Reproducibility (within-run): N=11 replicates for 3 low, 3 normal, and 3 high concentration samples (n=9 samples total). Data provenance is not specified, but implied to be from internal lab testing.
  • Inter-Laboratory Precision: 3 samples (low, normal, high concentrations), each run twice at two different laboratories. Data provenance is not specified, but implied to be from internal lab testing involving two labs.
  • Linearity: Diluted samples (concentrations from 0 to 100%), each concentration run twice. Data provenance is not specified.
  • Carryover: High concentration sample run 3 times, then low concentration sample run 3 times. Also, high level control run 3 times, then specified diluent run 3 times. Data provenance is not specified.
  • Correlation to Predicate Device: 103 samples for CBC parameters (WBC, RBC, HGB, HCT, MCV, MCH, MCHC, RDW, PLT, MPV). 98 samples for differential parameters (Gran%, Mid%, Lymph%, Gran#, Mid#, Lymph#). Data provenance is not specified (e.g., country of origin, retrospective/prospective).
  • Correlation to Manual Differential: 196 samples for differential parameters (Lymph%, Mid%, Gran%). Data provenance is not specified.
  • Ability to flag abnormal WBC histograms: 200 samples. Data provenance is not specified.
  • Reference Ranges (Normal Population Study): 121 donors. Data provenance is not specified (e.g., country of origin, retrospective/prospective).

3. Number of Experts and Qualifications for Ground Truth (Test Set)

  • Correlation to Manual Differential: The text states "comparing the DIFF results obtained by the BC-3200 to those by manual differential." This implies that manual differential counts performed by trained laboratory personnel served as the ground truth. The number of experts and their specific qualifications (e.g., years of experience, specific certifications) are not specified in the document.
  • Ability to flag abnormal WBC histograms: The comparison was "to those obtained by manual differential." Similar to the above, this implies manual review by trained personnel as ground truth, but the number and qualifications of experts are not specified.

4. Adjudication Method (Test Set)

  • The document does not specify any explicit adjudication method (e.g., 2+1, 3+1) for establishing ground truth for any of the studies mentioned. It simply refers to "manual differential" or "Coulter A.T diff 2™" as comparators/ground truth.

5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

  • No, an MRMC comparative effectiveness study was not explicitly described or conducted for human readers with and without AI assistance. The document focuses on the performance of the device itself (standalone) compared to a predicate device and manual methods.

6. Standalone Performance (Algorithm Only) Study

  • Yes, a standalone study was performed. All the performance characteristics described (reproducibility, inter-laboratory precision, linearity, carryover, correlation to predicate, correlation to manual differential, ability to flag abnormal histograms, reference ranges) are evaluations of the BC-3200 Auto Hematology Analyzer's performance without direct human intervention in the result generation itself. The comparisons to manual differential and the predicate device assess its standalone accuracy and equivalence.

7. Type of Ground Truth Used

  • Expert Consensus / Expert Reading (Manual Differential): For differential parameters (Lymph%, Mid%, Gran%) and WBC histogram flagging, the ground truth was based on "manual differential" performed by laboratory personnel. This typically involves microscopic review and counting of cells by trained experts.
  • Reference Instrument/Method (Predicate Device): For most CBC and differential parameters, the BC-3200 was correlated against the COULTER® AC-T diff 2™ Analyzer, which served as a reference standard.

8. Sample Size for the Training Set

  • The document does not specify a separate training set or its sample size. The studies described are performance validation studies. For a device like this, the "training" (i.e., algorithm development and calibration) might have occurred during the design phase using internal datasets, which are not detailed in this submission summary. The "Reference Ranges" study involved 121 donors, which could be considered a dataset used for defining normal operating parameters, but not explicitly a training set for an AI/ML algorithm.

9. How Ground Truth for the Training Set was Established

  • As a training set is not explicitly mentioned or described, the method for establishing its ground truth is also not specified in this document.

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APR - 8 2010

510(K) SUMMARY

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

The assigned 510(k) number is: 5093394

Submitter:

Shenzhen Mindray Bio-medical Electronics Co., LTD Mindray Building, Keji 12th Road South, Hi-tech Industrial Park, Nanshan, Shenzhen, 518057, P. R. China

Tel: +86 755 2658 2888

Fax: +86 755 2658 2680

Contact Person: ●

Li Dongling Shenzhen Mindray Bio-medical Electronics Co., LTD Mindray Building, Keji 12th Road South, Hi-tech Industrial. Park, Nanshan, Shenzhen, 518057, P. R. China

  • Date Prepared: .
    Oct. 20, 2009

Name of the device:

  • Trade/Proprietary Name: BC-3200 Auto Hematology Analyzer
  • Common Name: Automated Differential Cell Counter
  • Classification

21 CFR§864.5220 Automated Differential Cell Counter Class II

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Legally Marketed Predicate Device:

K#990352, COULTER® AC-T diff 2TM Analyzer, Coulter Corporation.

Description:

The BC-3200 Auto Hematology Analyzer is a quantitative, automated hematology analyzer and leukocyte differential counter for In Vitro Diagnostic Use in clinical laboratories. It is only to be used by trained medical professionals to identify the normal patient, with all normal system-generated parameters, and to flag or identify patient results that require additional studies. The analyzer provides analysis results of 16 parameters (listed below) of human blood and three histograms.

ParameterAbbreviation
White Blood Cell or leukocyteWBC
LymphocyteLymph#
Mid-sized cellMid#
GranulocyteGran#
Lymphocyte percentageLymph%
Mid-sized cell percentageMid%
Granulocyte percentageGran%
Red Blood Cell or erythrocyteRBC
Hemoglobin ConcentrationHGB
Mean Corpuscular (erythrocyte) VolumeMCV
Mean Cell (erythrocyte) HemoglobinMCH
Mean Cell (erythrocyte) Hemoglobin ConcentrationMCHC
Red Blood Cell (erythrocyte) Distribution WidthRDW
HematocritHCT
PlateletPLT
Mean Platelet VolumeMPV
White Blood Cell HistogramWBC Histogram
Red Blood Cell HistogramRBC Histogram
Platelet HistogramPLT Histogram

The BC-3200 Auto Hematology Analyzer system consists of the analyzer, reagents (M-30D DILUENT, M-30R RINSE, M-30CFL LYSE, M-30E E-Z CLEANSER and M-30P PROBE CLEANSER), controls (BC-3D Hematology Control), calibrator (SC-CAL PLUS Hematology Calibrator) and accessories.

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Performance of the system depends on the combined integrity of all components.

The two independent measurement methods used in this analyzer are: the Coulter method for determining the WBC, RBC, and PLT data and the colorimetric method for determining the HGB.

Statement of intended Use:

The BC-3200 auto hematology analyzer is a quantitative, automated hematology analyzer and leukocyte differential counter to be used in clinical laboratories for In Vitro Diagnostic purpose.

The intended use of BC-3200 Auto Hematology Analyzer is to identify the normal patient, with all normal system-generated parameters, and to flag or identify patient results that require additional studies.

Performance characteristics:

Reproducibility .

Reproducibility is stated in terms of both Standard Deviation (SD) and Coefficient of Variation (CV%).Reproducibility was deterrmined by replicate testing(n = 11)with samples of low, normal and high concentrations.three samples for each concentration. For each sample,results ofthe 2nd to 11th runs were adopted to calculate the SD and CV % . See Table 1 to Table 3 .

WBCRBCHGBMCVPLT
1(×103 / μL)(×106 /μL)(g/dL)(fl)(×103 /μL)
mean4.12.889.264.6162
SD0.070.040.10.405.06
CV(%)1.631.450.80.623.12
2(×103 / μL)(×106 /μL)(g/dL)(fl)(×103 /μL)
mean3.23.029.372.9155
SD0.030.030.10.217.02
CV(%)0.991.061.00.284.53
3(×103 / μL)(×106 /μL)(g/dL)(fl)(×103 /μL)
mean3.11.915.661.061
SD0.060.030.10.245.11
CV(%)1.841.761.10.398.39

Table 1 Imprecision , low concentration samples

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WBCRBCHGBMCVPLT
1(×10³/μL)(×10⁶/μL)(g/dL)(fl)(×10³/μL)
mean10.14.6013.183.3
SD0.120.030.090.38
CV(%)1.180.730.70.453.30
2WBCRBCHGBMCVPLT
(×10³/μL)(×10⁶/μL)(g/dL)(fl)(×10³/μL)
mean9.85.3415.283.1
SD0.100.040.120.274.86
CV(%)0.990.780.80.331.95
3WBCRBCHGBMCVPLT
(×10³/μL)(×10⁶/μL)(g/dL)(fl)(×10³/μL)
mean11.35.2715.085.9
SD0.130.040.060.218.53
CV(%)1.110.730.40.253.70

Table 2 Imprecision , normal concentration samples

1WBC(×10³/μL)RBC(×10⁶/μL)HGB(g/dL)MCV(fl)PLT(×10³/μL)
mean16.76.9822.4112.1419
SD0.310.090.20.799.73
CV(%)1.851.240.70.712.32
2WBC(×10³/μL)RBC(×10⁶/μL)HGB(g/dL)MCV(fl)PLT(×10³/μL)
mean25.16.2218.8/408
SD0.260.050.2/6.45
CV(%)1.030.840.8/1.58
3WBC(×10³/μL)RBC(×10⁶/μL)HGB(g/dL)MCV(fl)PLT(×10³/μL)
mean18.56.0918.0/495
SD0.170.040.2/11.44
CV(%)0.930.600.8/2.31

Table 3 Imprecision , high concentration samples

. Iner-Laboratory Precision

Two laboratories, each having one BC-3200 installed, were selected for the test. Three samples of various concentrations (respectively low, normal and high) were prepared, each with sufficient volume to run twice on both of the BC-3200s. Each BC-3200 was operated by one operator, who conducted the test from

{4}------------------------------------------------

beginning to the end. Each sample was divided into two aliquots, and the two aliquots were analyzed respectively by the two selected laboratories within the same day of preparation. Each aliquot was run twice on the BC-3200 and both runs were conducted within a short interval. No outlier was found during the test.

Based on the data acquired, repeatability variance (8), between laboratory variance ( ( ), and reproducibility variance ( ( ) of the following parameters, . WBC, RBC, HGB, MCV, PLT, Lymph%, Mid% and Gran%, were calculated for each concentration. The inter-laboratory precision see table 4.

LowNormalHigh
WBC ( $\times 10^3 / \mu L$ )
Mean2.138.1020.68
Repeatability variance$S_r^2$0.00250.00980.0613
Between Laboratory variance$S_L^2$0.00000.01510.0000
Reproducibility variance$S_R^2$0.00250.02490.0613
$S_R$0.05000.15780.2476
CV%2.35%1.95%1.20%
Gran (%)
Mean32.5360.9881.30
Repeatability variance$S_r^2$1.10500.02210.0637
Between Laboratory variance$S_L^2$1.75880.77030.0932
Reproducibility variance$S_R^2$2.86380.79240.1569
$S_R$1.69230.89020.3961
CV%5.20%1.46%0.49%
Lymph (%)
Mean12.6528.8351.30
Repeatability variance$S_r^2$0.20730.06133.0439
Between Laboratory variance$S_L^2$0.00001.33076.4781
$S_R^2$0.20731.39209.5220
Reproducibility variance$S_R$0.45531.17983.0858
CV%3.60%4.09%6.02%
Mid (%)
Mean6.0510.2016.18
Repeatability variance$S_r^2$0.04900.00980.6655
Between Laboratory variance$S_L^2$0.02050.07511.3786
$S_R^2$0.06950.08492.0441
Reproducibility variance$S_R$0.26360.29141.4297
CV%4.36%2.86%8.84%
RBC (×106/μL)
Mean2.484.895.80
Repeatability variance$S_r^2$0.00040.00650.0085
Between Laboratory variance$S_L^2$0.00070.00130.0000
$S_R^2$0.00110.00780.0085
Reproducibility variance$S_R$0.03320.08830.0922
CV%1.34%1.81%1.59%
HGB (g/L)
Mean6.3514.0819.13
Repeatability variance$S_r^2$0.00000.00250.0123
Between Laboratory variance$S_L^2$0.00500.06010.0952
$S_R^2$0.00500.06260.1075
Reproducibility variance$S_R$0.07070.25020.3279
CV%1.11%1.78%1.71%
MCV (fl)
Mean77.2886.7396.33
Repeatability variance$S_r^2$0.11030.01230.0907
Between Laboratory variance$S_L^2$2.25621.52522.7160
Reproducibility variance$S_R^2$2.36651.53752.8067
$S_R$1.53831.24001.6753
CV%1.99%1.43%1.74%
PLT (×103 /μL)
Mean94.75258.25468.50
Repeatability variance$S_r^2$13.245316.269912.5033
Between Laboratory variance$S_L^2$14.502469.990165.7484
Reproducibility variance$S_R^2$27.747786.260078.2517
$S_R$5.26769.28768.8460
CV%5.56%3.60%1.89%

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{6}------------------------------------------------

:

.

Table 4 Within-run precision and total precision

Appendix of Table 4:

WBCForm AForm BForm C
LaboratoryLowNormalHighLowNormalHighLowNormalHigh
12.28.120.52.158.220.750.070.140.35
2.18.321
22.1820.62.1820.6000
2.1820.6
Gran(%)LaboratoryForm AForm BForm C
LowNormalHighLowNormalHighLowNormalHigh
132.560.281.131.4560.3581.051.480.210.07
30.460.581
233.561.681.833.661.681.550.1400.35
33.761.681.3
Lymph (%)Form AForm BForm C
LaboratoryLowNormalHighLowNormalHighLowNormalHigh

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112.829.951.712.7529.6553.30.070.352.26
12.729.454.9
212.1285012.552849.30.6400.99
132848.6
Mid (%)Form AForm BForm C
LaboratoryLowNormalHighLowNormalHighLowNormalHigh
16.19.915.86.21015.250.140.140.78
6.310.114.7
26.110.416.55.910.417.10.2800.85
5.710.417.7
RBCForm AForm BForm C
LaboratoryLowNormalHighLowNormalHighLowNormalHigh
12.444.785.842.4554.8455.7650.020.090.11
2.474.915.69
22.514.995.892.4954.945.840.020.070.07
2.484.895.79
HGBForm AForm BForm C
LaboratoryLowNormalHighLowNormalHighLowNormalHigh
16.313.918.86.313.918.9000.14
16.313.919
26.414.319.46.414.2519.3500.070.07
26.414.219.3
MCVForm AForm BForm C
LaboratoryLowNormalHighLowNormalHighLowNormalHigh
176.585.995.276.285.8595.150.420.070.07
75.985.895.1
278.587.597.878.3587.697.50.210.140.42
78.287.797.2
PLTForm AForm BForm C
LaboratoryLowNormal` HighLOWNormalHighLowNormalHigh
8826546691.5264.5462.54.950.714.95
તેર264459
9724847498252474.51.41રું રહ્યું રેણવાડી તેમ જ દૂધની ડેરી જેવી સવલતો પ્રાપ્ય થયેલી છે. આ ગામનાં છે. આ ગામનાં છે. આ ગામનાં છે. આ ગામનાં છે. આ ગામનાં છે. આ ગામનાં લોકોનો મુખ્ય વ્યવસાય ખેતી, ખેતમજૂર0.71
99256475

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· Linearity

Linearity was determined by running diluted samples. RBC,HGB are diluted by blood plasma of the sample , while WBC and PLT are diluted by specified diluent . Concentrations from 0 to 100 % were tested , each concentration twice . The average of the two runs is taken as the result , together with the concentration , to calculate per the linear regression equation . See Table 5 to Table 8 .

Dilution (%)Test 1Test 2MeanIdealErrorProportionalerror
100117.1115.9116.50120.013.512.9
8099.8100.199.9596.01-3.94-4.1
6073.472.172.7572.00-0.75-1.0
4047.848.648.2048.00-0.20-0.4
2023.123.123.1023.990.893.7
1012.112.012.0511.99-0.06-0.5
56.06.26.106.00-0.10-1.7
2.53.02.92.952.990.041.3
1.251.31.31.301.490.1912.8
0.6250.50.50.500.740.2432.4
0.31250.20.10.150.360.2158.3
0000.00-0.01-0.01/
Slope1.2002
Intercept-0.0129

Table 5 WBC Linearity

Dilution (%)Test 1Test 2MeanIdealErrorProportionalerror
1008.468.438.4458.5190.0740.9
806.916.866.8856.819-0.066-1.0
605.125.175.1455.119-0.026-0.5
403.423.463.4403.419-0.021-0.6
201.711.691.7001.7190.0191.1
100.890.870.8800.869-0.011-1.3
50.460.460.4600.444-0.016-3.6
2.50.210.220.2150.2320.0177.3
1.250.100.130.1150.1250.0108.0
00.000.000.0000.0190.019/
Slope0.0850

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Intercept

0.0191

Dilution (%)Test 1Test 2MeanIdealErrorProportionalerror
10025.625.625.6025.40-0.20-0.8
8020.520.120.3020.330.030.1
6015.114.915.0015.260.261.7
4010.110.110.1010.190.090.9
205.25.05.105.110.010.2
102.72.62.652.58-0.07-2.7
51.41.41.401.31-0.09-6.9
2.50.70.70.700.68-0.02-2.9
1.250.40.40.400.36-0.04-11.1
00.00.00.000.040.04/
Slope0.2536
Intercept0.0425

Table 6 RBC Linearity


Table 7 HGB Linearity

Dilution (%)Test 1Test 2MeanIdealErrorProportionalerror
100101410081011.01040.329.32.8
80850858854.0832.5-21.5-2.6
60631650640.5624.8-15.7-2.5
40425419422.0417.0-5.0-1.2
20221208214.5209.3-5.2-2.5
10109101105.0105.40.40.4
5535353.053.50.50.9
2.5231720.027.57.527.3
1.25856.514.58.055.2
0000.01.61.6/
Slope10.3871
Intercept1.5618

Table 8 PLT Linearity

Carryover ●

Carryover was determined by first running the high concentration sample for

{10}------------------------------------------------

three consecutive times (i1, i2, i3) and then the low concentration sample three consecutive times (j1, j2, j3), and finally calculating per the following equation:

Carryover (%) = [(j1 - j3)/ (i3-j3)]×100%

The test was then repeated using the high level control. See Table 9 and Table 10.

ParameterHigh concentrationsample (whole blood)Low concentrationsample (whole blood)Carryover %
i1i2i3j1j2j3
WBC(×10³ / µL)19.720.420.01.91.91.90%
RBC(×10⁶ /µL)6.346.246.21.871.961.850.46%
HGB(g/dL)25.425.024.83.33.23.20.46%
PLT(×10³ /µL)4043903963134330%

Table 9 Carryover, high concentration sample

ParameterHigh concentrationsample (high levelcontrol)Low concentrationsample (specifieddiluent)Carryover %
i1i2i3j1j2j3
WBC(×10³ / µL)21.721.321.70.00.00.00%
RBC(×10⁶ /µL)5.885.795.790.000.000.000%
HGB(g/dL)18.818.718.90.00.00.00%
PLT(×10³ /μL)4534384290000%

Table 10 Carryover, high level control

Correlation ●

Correlation is determined by comparing the results ( both CBC and DIFF ) obtained by the BC-3200 to those by the Coulter A .T diff 2 TM and by comparing the DIFF results obtained by the BC-3200 to those by manual differential . See Table 11 and Table 12 .

ParametersSample(n)MeanDifferenceratio(D%)Slope(a)Intercept(b)Correlationcoefficients
BC-3200A c. Tdiiff 2
WBC10310.310.33.01.0091-0.03860.9990
Gran%9865.464.14.00.90467.34700.9581
Mid%988.66.546.30.75693.87980.3926
Lymph%9826.029.410.90.79352.57720.9709
Gran#986.16.04.50.98860.14600.9961
Mid#980.70.542.62.1022-0.37980.8701

MINDRAY PROPRIETARY

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Lymph#981.92.111.10.9918-0.18640.9886
RBC1034.314.272.00.99100.07670.9955
HGB10312.512.51.50.99390.09810.9972
HCT10337.637.22.71.00140.43340.9923
MCV10387.887.51.30.94924.82760.9778
MCH10329.229.51.80.93771.54890.9712
MCHC10333.333.72.20.74978.03140.6038
RDW10313.113.55.30.42957.31910.9387
PLT10322823010.00.885924.1930.9943
MPV1038.48.84.90.70372.22870.9169

Table 11 Correlation to Coulter A .T diff 2™

ParameterSamples(n)MeanSlope(a)Intercept(b)Correlationcoefficient(r)
BC-3200Manual differential
Lymph%19626.830.40.75753.79580.95
Mid%1969.29.00.37395.8220.57
Gran%19664.060.60.845612.7210.94

Table 12 Correlation to manual differential

Ability to flag abnormal WBC histograms ●

BC-3200's ability to flag abnormal WBC histograms was determined by comparing 200 sample results obtained by the BC-3200 to those obtained by manual diferential.See Table 13.

ManualdifferentialBC-3200
Positive (39)Negative (161)
Positive (40)TP (22)FN (18)
Negative (160)FP (17)TN (143)
Agreement (%)False Positive Ratio (%)False Negative Ratio (%)
82.510.645

Table 13 Ability to flag abnormal WBC histograms

Reference Ranges ●

A Normal Ranges Study was conducted to assess the Reference Ranges for the BC-3200 analyzer.Whole-blood samples were collected from 121 donors.

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ParameterUnitsSexMean90%ConfidenceLow Limit90%ConfidenceHigh Limit
WBC×10³cells /µLM/F6.863.4710.25
RBC×10⁶cells /µLM/F4.563.545.58
HGBg/ dLM/F13.4010.2716.52
HCT%M/F40.1230.9849.26
MCVfLM/F88.1880.8295.55
MCHpgM/F29.3626.5732.15
MCHCg/ dLM/F33.3332.0934.56
PLT×10³cells /µLM/F209.92119.62300.22
RDW%M/F12.8111.5314.10
MPVfLM/F8.477.079.87
Lymph%M/F27.3318.1136.55
Mid%M/F9.455.2313.67
Gran%M/F63.2651.6274.89

Normal Population Study

Table 14 Reference Range

Comparison of Technological Characteristics:

Compare the BC-3200 Auto Hematology Analyzer to COULTER® AC-T diff 2TM Analyzer

NOFeatureBC-3200 AutoHematology AnalyzerCOULTER® AC·T diff2TM Analyzer
1Intended UseThe BC-3200 autohematology analyzer is aquantitative, automatedhematology analyzer andleukocyte differentialcounter for In VitroDiagnostic Use inclinical laboratories.The COULTER® AC·Tdiff 2TM Analyzer is aquantitative, automatedhematology analyzerand leukocytedifferential counter ForIn Vitro Diagnostic Usein clinical laboratories.
2Sample TypesWhole Blood Mode andPrediluted ModeWhole blood modeand Prediluted mode
3Operating ModesClosed Vial WholeBlood modeOpen Vial Whole Bloodmode and Closed VialWhole Blood mode
4Throughput1 minute / analysis60 seconds or less
5Reagents RequiredM-30D DILUENT;dff AC.T Park or diff
M-30R RINSE;AC.T Tain reagent park,
M-30CFL LYSE;both of which contain
M-30E E-Zdiluent and lytic reagent.AC.T Rinse Shutdown
CLEANSER;Diluent
M-30P PROBE
CLEANSER
6Operating Range
WBC0.0 - 299.9 (×103/μL)0.0-150 (×103/μL)
RBC0.00 - 19.99 (×106/μL)0.00-8.00 (×106/μL)
HGB0-29.9 (×g/dL)0.00-30.0 (×g/dL)
PLT0 - 2999 (×103/μL)000-3000 (×103/μL)
MCV0.0 - 249.9fL50.0-130.0 fL
7Background Counts
WBC0.3×103 /μL or less0.4×103 /μL or less
RBC0.03×106 /μL or less0.04×106 /μL or less
HGB0.1 g/dL or less0.2 g/dL or less
PLT10 × 103 /μL or less7.0×103 /μL or less
8Reproducibility
WBC7.0-15.0×103 /μL6.0-15.0×103 /μL
3.0% or less3.0% or less
RBC3.50-6.00×106 /μL3.00-6.00×106 /μL
2.5% or less3.0% or less
HGB11.0-18.0 g/dL12.0-18.0 g/dL
2.0% or less2.0% or less
MCV80.0-110.0 fL80.0-100.0 fL
2.0% or less3.0% or less
PLT200-400×103 /μL200-500×103 /μL
6.0% or less7.0% or less
9Linearity
WBC0.3-99.9 (×103/μL)0 - 99.9(×103/μL)
±0.3 or ±5%±0.3 or ±5%
RBC0.20 -7.99(×106/μL)0-7.0(×106/μL)
±0.05 or ±5%±0.05 or ±5.0%
HGB1.0-24.9 (g/dL)0 - 25.0 (g/dL) □
±0.2 or ±3%±0.2 or ±3.0%
PLT10-999(×103/μL)0 - 999 (×103/μL) □
±10 or ±10%±10.0 or ±10.0%
10Carryover
WBC0.5% or less2.0% or less
RBC0.5% or less2.0% or less
HGB0.5% or less2.0% or less
PLT1.0% or less2.0% or less
11Principles
WBCCoulter methodCoulter method
RBCCoulter methodCoulter method
PLTCoulter methodCoulter method
HGBColorimetric methodHemoglobinometrymethod
12Analysis VesselsSimultaneous analysis ofRBC and WBC inseparate analysis vessels,and using a singleaperture each of WBCand RBC counting andsizing.Simultaneous analysis ofRBC and WBC inseparate analysisvessels, and using asingle aperture each ofWBC and RBC countingand sizing.
13Normal PatientAbility to set normalpatient ranges againstwhich sample results arecompared. Sampleresults are flagged with"H" is the result is abovethe normal range and"L" if below the normalrange.Ability to set normalpatient ranges againstwhich sample results arecompared. Sampleresults are flagged with"H" is the result is abovethe normal range and"L" if below the normalrange.
14Sample ProcessingUtilizes an automaticsampling, diluting andmixing device for sampleprocessing.Utilizes an automaticsampling, diluting andmixing device forsample processing.
15Quality ControlProvides 2 QC programs:L-J Analysis and X-BAnalysis.Provides QC programs:L-J Analysis.
16CalibrationProvides 2 calibrationprograms: manualcalibration and autocalibration usingcommercial calibrators.Provides 2 calibrationprograms: manualcalibration and autocalibration usingcommercial calibrators.
of reporting erroneousresults caused by apartial or transientaperture clog or by otheraperture disturbance.of reporting erroneousresults caused by apartial or transientaperture clog or by otheraperture disturbance.
18SoftwareThis system is run bycomputer software.Ability to calculate data,store data and reviewresults.This system is run bycomputer software.Ability to calculate data,store data and reviewresults.
19RecommendedControlsBC-3D :Low, Normaland High4C PLUS cell control:abnormal low, normal,and abnormal high.
20Listing parameters forControlsParameters: WBC, RBC,HGB, HCT, MCV,MCH, MCHC, PLT,Lymph%, Lymph#,RDW, MPV, Mid%,Mid#, Gran%, Gran#Parameters: WBC, RBC,Hgb, Hct, MCV, MCH,MCHC, Plt, LY%, LY#,RDW, MPV, MO%,MO#, GR%, GR#
21RecommendedCalibratorSC-CAL PLUSS-CAL calibrator
22Sample VolumeAspirated13µL of whole blood20µL of predilute blood18µL of whole blood20µL of prediluted blood
23ParametersParameters: WBC, RBC,HGB, HCT, MCV,MCH, MCHC, PLT,Lymph%, Lymph#,Mid%, Mid#, Gran%,Gran#, RDW, MPVParameters: WBC, RBC,Hgb, Hct, MCV, MCH,MCHC, Plt, LY%, LY#,MO%, MO#, GR%,GR#, RDW, MPV

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MINDRAY®PROPRIETARY

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.. .

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The BC-3200 Auto Hematology Analyzer is substantially equivalent to COULTER® ACT diff 2TM Analyzer. The design, components, characteristic performance of the BC-3200 Auto Hematology Analyzer is similar to its predicate device. The system provides a means for count WBC, RBC, PLT and HGB for human in clinical laboratory.

The differences between the BC-3200 Auto Hematology Analyzer and COULTER® AC T diff 2TM Analyzer are performance value, sample volume aspirated and operating mole. These differences do not affect the safety or efficacy of the device.

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Testing:

Laboratory testing was conducted to validate and verify that the BC-3200 Auto Hematology Analyzer met all design specifications and was substantially equivalent to the predicate device. The testing was performed to demonstrate compliance with the hazard analysis of the system and its software was performed and testing was conducted to validate the systems overall operation. The BC-3200 Auto Hematology Analyzer has also been tested to assure compliance to the requirements of various published standards, including IEC61010-1, IEC61010-2-101, ISO14971, EN 13640, EN 591, EN 375, EN 980 and IEC 61326.

Clinical testing was conducted to validate and verify that the BC-3200 Auto Hematology Analyzer met all design performance characteristic and was substantially equivalent to the predicate device. The testing consisted of all performance identified in the Guidance Document issued on December 4, 2001 "Class II Special Controls Guidance Document: Premarket Notifications for Automated Differential Cell Counters for Immature or Abnormal Blood Cells; Final Guidance for Industry and FDA".

Although the device is neither life supporting nor life sustaining, diagnostic information derived from the use of the device and alarms generated by the device may be critical to the proper management of the patient. So, the areas of risk for this device are the same as other devices in this class, the significant risk is misdiagnosis:

  • Inadequate design of the signal processing and measurement circuitry or program can lead generation of inaccurate diagnostic data. If inaccurate diagnostic data are used in managing the patient. the physician may prescribe a course of treatment that places the patient at risk unnecessarily.
  • Inadequate design of the device's software, used to make various measurements, can lead to generation of inaccurate diagnostic data. If inaccurate diagnostic data are used in managing the patient, the physician may prescribe a course of treatment that places the patient at risk unnecessarily.

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Conclusion:

·

The conclusions drawn from clinical and laboratory testing of the BC-3200 Auto Hematology Analyzer demonstrates that the device is as safe, as effective, and performs as well as the legally marketed predicate device-COULTER® Aº.T diff 2™

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Image /page/18/Picture/0 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three lines representing its wings, and the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged in a circular fashion around the eagle. The logo is black and white.

DEPARTMENT OF HEALTH & HUMAN SERVICES

Public Health Service

Food and Drug Administration 10903 New Hampshire Avenue Document Mail Center-WO66-G609 Silver Spring, MD 20993-0002

Shenzhen Mindray Bio-Medical Electronics Co., Ltd. c/o Ms. Susan D. Goldstein-Falk Official Correspondent for Shenzhen Mindray Bio-Medical Electronics Co., Ltd MDI Consultants, Inc. 55 Northern Boulevard, Suite 200 Great Neck, New York 11021

Re: K093394

.. .

Trade/Device Name: BC-3200 Auto Hematology Analyzer Regulation Number: 21 CFR §864.5220 Regulation Name: Automated Differential Cell Counter Regulatory Class: Class II Product Code: GKZ Dated: April 5, 2010 Received: April 7, 2010

Dear Ms. Goldstein-Falk:

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 commerce prior 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 class II (Special Controls), 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 comply 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); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); 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

APR 0 8 2010

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Page 2 - Ms. Susan D. Goldstein-Falk

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.

If you desire specific advice for your device on our labeling regulation (21 CFR Parts 801 and 809), please contact the Office of In Vitro Diagnostic Device Evaluation and Safety at (301) 796-5450. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportalProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

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) 796-7100 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.

Sincerely yours,

inana in char

Maria M. Chan. Ph.D Director Division of Immunology and Hematology Devices Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health

Enclosure

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Page _ 1 __of_1

510(k) Number (if known): K093394

Device Name: BC-3200 Auto Hematology Analyzer

Indications for Use:

The BC-3200 auto hematology analyzer is a quantitative, automated hematology analyzer and leukocyte differential counter to be used in clinical laboratories for In Vitro Diagnostic purpose.

The intended use of BC-3200 Auto Hematology Analyzer is to identify the normal patient, with all normal system-generated parameters, and to flag or identify patient results that require additional studies.

Prescription Use X

Over-The Counter Use

(Per 21 CFR 801 Subpart D)

OR (21 CFR 807 Subpart C)

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

i m. Chan

Division Sign-Off

Office of In Vitro Diagnostic Device Evaluation and Safety

510(k) K093394

32

§ 864.5220 Automated differential cell counter.

(a)
Identification. An automated differential cell counter is a device used to identify one or more of the formed elements of the blood. The device may also have the capability to flag, count, or classify immature or abnormal hematopoietic cells of the blood, bone marrow, or other body fluids. These devices may combine an electronic particle counting method, optical method, or a flow cytometric method utilizing monoclonal CD (cluster designation) markers. The device includes accessory CD markers.(b)
Classification. Class II (special controls). The special control for this device is the FDA document entitled “Class II Special Controls Guidance Document: Premarket Notifications for Automated Differential Cell Counters for Immature or Abnormal Blood Cells; Final Guidance for Industry and FDA.”