URITEK-720+ URINE ANALYZER
Device Facts
| Record ID | K051526 |
|---|---|
| Device Name | URITEK-720+ URINE ANALYZER |
| Applicant | Teco Diagnostics |
| Product Code | KQO · Clinical Chemistry |
| Decision Date | Aug 16, 2005 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 862.2900 |
| Device Class | Class 1 |
Indications for Use
The Uritek-720+ Urine Analyzer is intended for use with Teco Urine Reagent Strips for Urinalysis such as URS-10, used in the determination of glucose, protein, pH, bilirubin, blood, ketone, urobilinogen, nitrite, specific gravity, and leukocytes in urine.
Device Story
Uritek-720+ Urine Analyzer is an automated urinalysis system; processes urine reagent strips (e.g., URS-10). Input: colorimetric changes on reagent strips; captured via Contact Image Sensor (CIS). Operation: user dips strip, places on test table; device scans reflectance of red, green, blue light; computes reflectance ratio using internal algorithm. Output: semi-quantitative/qualitative results for 10 analytes. Used in clinical settings; operated by healthcare personnel. Benefits: standardized, automated interpretation of urine chemistry compared to visual reading; reduces subjectivity; improves consistency in clinical decision-making regarding patient metabolic or renal status.
Clinical Evidence
No clinical data. Bench testing only. Precision/reproducibility evaluated using 20 replicates of three control levels across two instruments and two lots, showing high agreement (95-100%). Method comparison performed on 100 specimens using Teco strips on Uritek-720+ versus Bayer Multistix 10SC on Clinitek-200+, confirming substantial equivalence.
Technological Characteristics
Automated urinalysis system using reflectance photometry. Sensing: Contact Image Sensor (CIS). Energy: Electrical. Form factor: Benchtop (260 x 320 x 178 mm; 2.4 kg). Connectivity: Manual or barcode patient ID entry. Calibration: Self-calibrating on power-up using internal white reference. Software: Embedded system for signal processing and reflectance ratio computation.
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:
k051526
B. Purpose for Submission:
New submission for the Uritek-720+ Urine Analyzer for the use with Teco Diagnostic’s previously cleared urine strips URS-10 k970250.
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-720+ Urine Analyzer
G. Regulatory Information:
1. Regulation section:
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
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21 CFR § 862.2900 Automated urinalysis system
2. Classification:
Class II; Urinary glucose (nonquantitative) test system and Occult blood test
Class I; Leukocyte peroxidase test, Refractometer for clinical use, Urinary pH (nonquantitative) test system, Nitrite (nonquantitative) test system, Urinary protein or albumin (nonquantitative) test system, Ketones (nonquantitative) test system, Urinary urobilinogen (nonquantitative) test system and Urinary bilirubin and its conjugates (nonquantitative) test system and Automated urinalysis system
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-dye, colorimetric, Bilirubin & its conjugates (urinary, non-quant.)
KQO Automated urinalysis system
4. Panel:
75 Chemistry
H. Intended Use:
1. Intended use(s):
See indications for use.
2. Indication(s) for use:
The Uritek-720+ Urine Analyzer is intended for use with Teco Urine Reagent Strips for Urinalysis such as 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
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4. Special instrument requirements:
Uritek-720+ Urine Analyzer
I. Device Description:
The Uritek-720+ Urine Analyzer combines a contact Image Sensor (CIS), electronics and computer technology with other technologies. The controlling system processes the reflectance ratios of the lights and converts them into electrical signals for result interpretation.
J. Substantial Equivalence Information:
1. Predicate device name(s):
Bayer, Clinitek 200+ Urine Chemistry Analyzer
2. Predicate 510(k) number(s):
k0926359
3. Comparison with predicate:
| Comparison | | |
| --- | --- | --- |
| Item | Device | Predicate |
| Intended use | Used in 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 |
| Environment Requirement | 0-40 °C Relative humidity ≤ 85% | 18-30 °C Relative humidity 20% - 85% |
| Dimension | 260 x 320 x 178 mm | 49.3 x 35.4 x 19.7 cm |
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| Comparison | | |
| --- | --- | --- |
| Item | Device | Predicate |
| Weight | 2.4 kg | 13.6 kg |
K. Standard/Guidance Document Referenced (if applicable):
None Referenced
L. Test Principle:
The instrument uses three electric signals of red, green and blue (conversion of reflected light) to scan the difference and depth of color change. The controlling system processes the electrical signal and computes the reflectance ratio of testing color according to the following equation:
$$
\mathrm{R}\% = \frac{\mathrm{Tm} \times \mathrm{Cr}}{\mathrm{Tr} \times \mathrm{Cm}} \times 100\%
$$
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
M. Performance Characteristics (if/when applicable):
1. Analytical performance:
a. Precision/Reproducibility:
The repeatability study was performed on 20 replicates of three levels of controls using two instruments and two lots. The 2x2 contingency table was applied to evaluate the total agreement, in terms of percentage, on each parameter. Cutoff values were used to determine the difference of positive and negative samples. Results are summarized below:
Control I
| Sample | Glucose | | Bilirubin | | Ketone | | SG | | Blood | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Cutoff | 759.8 mg/dL | | 4.6 mg/dL | | 59.4 mg/dL | | 1.022 | | 129.9 cells/μl | |
| | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 20 | 0 | 20 | 0 | 19 | 0 | 20 | 0 |
| Negative | 0 | 20 | 0 | 20 | 0 | 20 | 1 | 20 | 0 | 20 |
| Agreement % | 100% | 100% | 100% | 100% | 100% | 100% | 95% | 100% | 100% | 100% |
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Control I
| Sample | pH | | Protein | | Urobilinogen | | Nitrite | | Leukocyte | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Cutoff | 7.7 | | 178.7 mg/dL | | 4.9 mg/dL | | 0.8 | | 315.4 cells/μl | |
| | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 |
| Negative | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 |
| Agreement % | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
Control II
| Sample | Glucose | | Bilirubin | | Ketone | | SG | | Blood | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Cutoff | 417.2 mg/dL | | 1.9 mg/dL | | 27.9 mg/dL | | 1.013 | | 39.3 cells/μl | |
| | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 20 | 1 | 20 | 0 | 20 | 1 | 20 | 1 |
| Negative | 0 | 20 | 0 | 19 | 0 | 20 | 0 | 19 | 0 | 19 |
| Agreement % | 100% | 100% | 100% | 95% | 100% | 100% | 100% | 95% | 100% | 95% |
Control II
| Sample | pH | | Protein | | Urobilinogen | | Nitrite | | Leukocyte | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Cutoff | 7.3 | | 67.4 mg/dL | | 0.5 mg/dL | | 0.8 | | 98.6cells/μl | |
| | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 19 | 0 | 20 | 0 | 20 | 0 | 19 | 0 |
| Negative | 0 | 20 | 1 | 20 | 0 | 20 | 0 | 20 | 1 | 20 |
| Agreement % | 100% | 100% | 95% | 100% | 100% | 100% | 100% | 100% | 95% | 100% |
Control III
| Sample | Glucose | | Bilirubin | | Ketone | | SG | | Blood | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Cutoff | 60 mg/dL | | 0.6 mg/dL | | 2.6 mg/dL | | 1.007 | | 8.8cells/μl | |
| | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 |
| Negative | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 |
| Agreement % | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
Control III
| Sample | pH | | Protein | | Urobilinogen | | Nitrite | | Leukocyte | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Cutoff | 6.2 | | 11 mg/dL | | 0.5 mg/dL | | 0.8 | | 9.7cells/μl | |
| | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg | Pos | Neg |
| Positive | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 |
| Negative | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 | 0 | 20 |
| Agreement % | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
b. Linearity/assay reportable range:
See k970250
c. Traceability, Stability, Expected values (controls, calibrators, or methods):
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See k970250
d. Detection limit:
See k970250
e. Analytical specificity:
See k970250
f. Assay cut-off:
See k970250
2. Comparison studies:
a. Method comparison with predicate device:
100 specimens were tested using the Teco strips (Lot 3: 04454 Exp.: 10/07) on Uritek-720+ (S/N: 6015-2184) verses the Bayer Multistix 10SC reagent strips (Lot#: 2K02C Exp.: 04/06) on the Clinitek-200+ (S/N: 1034). The samples included every range measurement for every analyte. The Percent agreement for each analyte was determined by the number of positive and negative results. The comparison data showed substantial equivalence to the predicate device.
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
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5. Expected values/Reference range:
See k970250
N. Instrument Name:
URITEK-720+ Urine Analyzer
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 or Barcode patient ID entry
4. Specimen Sampling and Handling:
Manual Dip and place urine strip onto test table
5. Calibration:
Uritek-720+ is self-calibrated every time the power is turned on. The calibration is performed twice when the strip bed moves in-out two times. As a preliminary step, the sponsor recommends that users should ensure the position of strip bed and clean the calibration white dot.
6. Quality Control:
The sponsor recommends the following to their users:
1. Positive and negative controls are always recommended for testing purpose.
2. Use commercially available 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
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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.
P. Other Supportive Instrument Performance Characteristics Data Not Covered In The "Performance Characteristics" Section above:
Software documentation provided demonstrates the Uritek-720+ 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.
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