URITEK 151 URINE ANALYZER, MODEL TC-151
Device Facts
| Record ID | K042421 |
|---|---|
| Device Name | URITEK 151 URINE ANALYZER, MODEL TC-151 |
| Applicant | Teco Diagnostics |
| Product Code | KQO · Clinical Chemistry |
| Decision Date | May 9, 2005 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 862.2900 |
| Device Class | Class 1 |
Indications for Use
The Uritek-151 Urine Analyzer is intended for use with Teco Urine Reagent Strips for Urinalysis such URS-10, used in the determination of glucose, protein, pH, bilirubin, blood, ketone, urobilinogen, nitrite, specific gravity, and leukocytes in urine.
Device Story
Uritek-151 Urine Analyzer is an automated urinalysis system for clinical use. It processes urine reagent strips (e.g., URS-10) to determine clinical values for ten analytes. The device uses a cold light source to scan reaction pads on the strip with two monochromatic light beams. Optical signals are transformed into electrical signals, which are processed by an internal controller to compute reflectance ratios. The device compares these ratios against internal standards to produce clinical results, which are displayed or printed. The system is self-calibrating using a white calibration bar upon power-up. It supports single-step or continuous testing modes. Operators manually dip the strip and place it on the test table. The device provides automated analysis to assist healthcare providers in urinalysis, reducing manual interpretation variability and improving testing reliability.
Clinical Evidence
No clinical data provided; substantial equivalence is based on bench testing and comparison to legally marketed predicate devices.
Technological Characteristics
Automated urine analyzer; optical reflectance sensing principle; utilizes Teco Urine Reagent Strips for colorimetric analysis of urine analytes. Device is a standalone benchtop instrument.
Indications for Use
Indicated for use with Teco Urine Reagent Strips (e.g., URS-10) for the semi-quantitative or qualitative determination of glucose, protein, pH, bilirubin, blood, ketone, urobilinogen, nitrite, specific gravity, and leukocytes in urine samples.
Regulatory Classification
Identification
An automated urinalysis system is a device intended to measure certain of the physical properties and chemical constituents of urine by procedures that duplicate manual urinalysis systems. This device is used in conjunction with certain materials to measure a variety of urinary analytes.
Submission Summary (Full Text)
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# 510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION DECISION SUMMARY ASSAY AND INSTRUMENT COMBINATION TEMPLATE
A. 510(k) Number:
k042421
B. Purpose for Submission:
New submission for the Uritek 151 Urine Analyzer for use with Teco Diagnostic’s previously cleared urine test strips URS-10 k970250. Urinary Glucose and Blood are class II and the subject of the review on the Uritek 151 analyzer.
C. Measurand:
Glucose, Blood, Leukocytes, Specific Gravity, pH, Nitrite, Protein, Ketone, Urobilinogen, and Bilirubin, in urine
D. Type of Test:
Qualitative/Semi-Quantitative
E. Applicant:
TECO DIAGNOSTICS
F. Proprietary and Established Names:
URITEK 151 URINE ANALYZER, MODEL TC-151
G. Regulatory Information:
1. Regulation section:
Measurand
21 CFR § 862.1340 Urinary glucose (nonquantitative) test system.
21 CFR § 864.6550 Occult blood test.
21 CFR § 864.7675 Leukocyte peroxidase test.
21 CFR § 862.2800 Refractometer for clinical use.
21 CFR § 862.1550 Urinary pH (nonquantitative) test system.
21 CFR § 862.1510 Nitrite (nonquantitative) test system.
21 CFR § 862.1645 Urinary protein or albumin (nonquantitative) test system
21 CFR § 862.1435 Ketones (nonquantitative) test system.
21 CFR § 862.1785 Urinary urobilinogen (nonquantitative) test system.
21 CFR § 862.1115 Urinary bilirubin and its conjugates (nonquantitative) test system.
Analyzer
21CFR § 862.2900 Automated urinalysis system.
2. Classification:
Class II, I
3. Product code:
JIL ENZYMATIC METHOD, GLUCOSE (URINARY, NON-QUANT.)
JIO BLOOD, OCCULT, COLORIMETRIC, IN URINE
LJX TEST, URINE LEUKOCYTE
JRE REFRACTOMETER FOR CLINICAL USE
CEN DYE-INDICATOR, PH (URINARY, NON-QUANT.)
JMT DIAZO (COLORIMETRIC), NITRITE (URINARY, NON-QUANT)
JIR INDICATOR METHOD, PROTEIN OR ALBUMIN (URINARY, NON-QUANT.)
JIN NITROPRUSSIDE, KETONES (URINARY, NON-QUANT.)
CDM DIAZONIUM COLORIMETRY, UROBILINOGEN (URINARY, NON-QUANT.)
JJB AZO-DYES, COLORIMETRIC, BILIRUBIN & ITS CONJUGATES (URINARY, NON-QUANT.)
KQO AUTOMATED URINALYSIS SYSTEM respectively
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4. Panel:
Chemistry (75)
H. Intended Use:
1. Intended use(s):
see Indication(s) for use
2. Indication(s) for use:
The Uritek-151 Urine Analyzer is intended for use with Teco Urine Reagent Strips for Urinalysis such URS-10, used in the determination of glucose, protein, pH, bilirubin, blood, ketone, urobilinogen, nitrite, specific gravity, and leukocytes in urine.
3. Special conditions for use statement(s):
for prescription use
4. Special instrument requirements:
URITEK 151 URINE ANALYZER, MODEL TC-151
I. Device Description:
URITEK-151 Urine Analyzer is designed combining optics, electronics, and computer technology with other technologies. The super-high cold light source testing used in the optical system, enhances the discerning ability and reduces the influence of ambient light on test. The modular system design and large-scale integrated circuit reduces the interference of each fixture of system and improve its reliability and stability.
The instrument applies to two monochromatic light beams scanning one at a time the different reaction pads, and transforms optical signals into electrical signal. The controlling system processes the electrical signal and computes the reflectance ratio of testing color according to the following equation:
$$
R(\%) = \frac{T_m \times Cr \times 100\%}{Tr \times C_m}
$$
R -- Reflectance ratio
Tr -- Reflectance intensity of reference light of test sector
Cr -- Reflectance intensity of reference light of blank sector
Tm -- Reflectance intensity of test sector of test light
Cm -- Reflectance intensity of blank sector of test light
Comparison of the Reflectance ratio for each pad with internal standards produces a clinical value for each of the tests in the strip. The results can be visually read and printed.
J. Substantial Equivalence Information:
1. Predicate device name(s):
Bayer, Clinitek 50 Urine Chemistry Analyzer
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2. Predicate 510(k) number(s): k960546
3. Comparison with predicate:
| Comparison | | |
| --- | --- | --- |
| Item | Device | Predicate |
| Intended use | Used in the determination of glucose, protein, pH, bilirubin, blood, ketone, urobilinogen, nitrite, specific gravity, and leukocytes in urine. | Same |
| Basic Operating Principle | Reflectance | Same |
| Testing Options | Single-step or continuous testing | Same |
| Test steps | Dip, and place urine strip onto test table | Same |
| Printer | Internal or external | Same |
| Environment Requirement | 0-40 °C Relative humidity ≤ 85% | 18-30 °C Relative humidity 20 - 85% |
| Power Source | A110V (± 10%), 50 Hz (± 1 Hz) Input: 30VA | Input: 100 – 250 V, 50/60 Hz, 0.5 – 0.3 A
Output: +9 V, 2.78 A |
| Dimension | 350 x 315 x 130 mm | 23.5 x 15.2 x 15.5 cm |
| Weight | 4.0 kg | 1.25 kg |
| Calibration | Self-calibrating – white calibration bar | Same |
K. Standard/Guidance Document Referenced (if applicable):
None Referenced
L. Test Principle:
The instrument applies to two monochromatic light beams scanning one at a time the different reaction pads, and transforms optical signals into electrical signal. The controlling system processes the electrical signal and computes the reflectance ratio of testing color according to the following equation:
$$
R(\%) = \frac{T_m \times Cr \times 100\%}{Tr \times C_m}
$$
R -- Reflectance ratio
Tr -- Reflectance intensity of reference light of test sector
Cr -- Reflectance intensity of reference light of blank sector
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Tm -- Reflectance intensity of test sector of test light
Cm -- Reflectance intensity of blank sector of test light
Comparison of the Reflectance ratio for each pad with internal standards produces a clinical value for each of the tests in the strip. The results can be visually read and printed.
## M. Performance Characteristics (if/when applicable):
### 1. Analytical performance:
#### a. Precision/Reproducibility:
The repeatability study is performed with 20 replications on three levels of controls. The contingency table 2x2 is applied to evaluate the total agreement, in term of percentage, on each parameter. The ±20% Cutoff is used as the breaking point between high positive and low negative samples.
| Control I | | | | |
| --- | --- | --- | --- | --- |
| Samples | Glu | | Bld | |
| Cutoff | 797.9mg/dL | | 152cells/μl | |
| | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 20 | 0 |
| Negative | 0 | 20 | 0 | 20 |
| Agreement % | 100% | 100% | 100% | 100% |
| Control II | | | | |
| --- | --- | --- | --- | --- |
| Samples | Glu | | Bld | |
| Cutoff | 305.5mg/dL | | 18cells/μl | |
| | Pos | Neg | Pos | Neg |
| Positive | 20 | 1 | 20 | 1 |
| Negative | 0 | 19 | 0 | 19 |
| Agreement % | 100% | 95% | 100% | 95% |
| Control III | | | | |
| Samples | Glu | | Bld | |
| Cutoff | 80.2mg/dL | | 3cells/μl | |
| | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 20 | 0 |
| Negative | 0 | 20 | 0 | 20 |
| TOTAL | 20 | 20 | 20 | 20 |
| Agreement % | 100% | 100% | 100% | 100% |
b. Linearity/assay reportable range: See k970250
c. Traceability, Stability, Expected values (controls, calibrators, or methods): See k970250
d. Detection limit: See k970250
e. Analytical specificity:
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See k970250
f. Assay cut-off:
See k970250
## 2. Comparison studies:
a. Method comparison with predicate device:
The comparison is performed by using the Teco strips (Lot#:E48051 Exp.:08/06) on Uritek-151(SN:30376) verses the Bayer Multistix 10SC Reagent strips(Lot#:2K02C Exp.:04/06) on Clinitek-151(S/N:6510A141818) patient samples are tested on both the analyzers. The data is analyzed with 2 contingency tabular formats and divided into two levels of percentage agreement: table 1) all the positive and negative samples, 2) every range measurement.
## Glucose
2x2 Contingency Comparison
| Clinitek-50 TC-151 | Positive | Negative |
| --- | --- | --- |
| +ve | 72 | 1 |
| -ve | 3 | 24 |
| TOTAL | 75 | 25 |
| Agreement % | 96% | 96% |
Range Comparison
| Clinitek-50 TC-151 | 1000 | 500 | 250 | 100 | 0 |
| --- | --- | --- | --- | --- | --- |
| 1000 | 18 | | | | |
| 500 | 0 | 18 | | | |
| 250 | | 1 | 18 | 1 | |
| 100 | | | 1 | 18 | 1 |
| 0 | | | | | 24 |
| TOTAL | 18 | 19 | 19 | 19 | 25 |
| Agreement % | 100% | 95% | 95% | 95% | 96% |
## Blood
2x2 Contingency Comparison
| Clinitek-50 TC-151 | Positive | Negative |
| --- | --- | --- |
| +ve | 73 | 1 |
| -ve | 2 | 24 |
| TOTAL | 75 | 25 |
| Agreement % | 97% | 96% |
Range Comparison
| Clinitek-50 TC-151 | 200 | 80 | 25 | 10 | 0 |
| --- | --- | --- | --- | --- | --- |
| 200 | 17 | | | | |
| 80 | 1 | 17 | 1 | | |
| 25 | | 1 | 18 | 1 | |
| 10 | | | | 19 | 1 |
| 0 | | | | | 24 |
| TOTAL | 18 | 18 | 19 | 20 | 25 |
| Agreement % | 94% | 94% | 95% | 95% | 96% |
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b. Matrix comparison:
Not Applicable
3. Clinical studies:
a. Clinical Sensitivity:
Not Applicable
b. Clinical specificity:
Not Applicable
c. Other clinical supportive data (when a. and b. are not applicable):
Not Applicable
4. Clinical cut-off:
Not Applicable
5. Expected values/Reference range:
See k970250
N. Instrument Name:
URITEK 151 URINE ANALYZER, MODEL TC-151
O. System Descriptions:
1. Modes of Operation:
Single-step or continuous testing
2. Software:
FDA has reviewed applicant’s Hazard Analysis and software development processes for this line of product types:
Yes ☐ X or No ☐
3. Specimen Identification:
Manual Patient ID entry
4. Specimen Sampling and Handling:
Manually Dip, and place urine strip onto test table
5. Calibration:
Uritek-151 is a self-calibrated analyzer every time power is turn on. The calibration is performed twice when the strip bed moves in-out two times. As a preliminary step, ensure steady position of strip bed and clean the calibration white dot.
6. Quality Control:
1. Positive and negative controls are always recommended for testing purpose.
2. Use HYCO® KOVA three levels controls: High Abnormal, Abnormal, and Normal.
3. Prepare the controls accordingly to the instruction insert provided.
4. Test the urine strips with the controls. Perform the control testing according to the sample test instructions.
5. Record the results and compare to the ranges provided. Remark: The control testing is only requested on every 100 tests or after turn on the power.
6. Retest the controls with different lot of strips, if test results are in doubt. If the test results are consistently in doubt, please contact TECO technical support for help.
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P. Other Supportive Instrument Performance Characteristics Data Not Covered In The "Performance Characteristics" Section above:
Software documentation provided demonstrates the Uritek 151 Urine Analyzer was designed and manufactured under well developed software lifecycle processes.
Q. Proposed Labeling:
The labeling is sufficient and it satisfies the requirements of 21 CFR Part 809.10.
R. Conclusion:
The submitted information in this premarket notification is complete and supports a substantial equivalence decision.
