DUO-MAX BLOOD PRESSURE & GLUCOSE MONITOR HMF-100

K080636 · Hubdic Co., Ltd. · CGA · Feb 13, 2009 · Clinical Chemistry

Device Facts

• Record ID: K080636
• Device Name: DUO-MAX BLOOD PRESSURE & GLUCOSE MONITOR HMF-100
• Applicant: Hubdic Co., Ltd.
• Product Code: CGA · Clinical Chemistry
• Decision Date: Feb 13, 2009
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 862.1345
• Device Class: Class 2

Indications for Use

The Duo-Max Blood pressure and Glucose Monitor, Model HMF-100 consists of a meter with wrist cuff and test strips. The system is intended for use in the quantitative measurement of glucose in whole blood taken from the fingertip. Testing is done outside the body (In Vitro diagnostic use). It is indicated for use at home (over the counter [OTC]) by persons with diabetes mellitus, or in clinical settings by healthcare professionals, as an aid to monitor the effectiveness of diabetes control. It is not intended for use on neonates. Also the system measures systolic and diastolic blood pressure and pulse rate from adult's wrist in the home care environment. The device employs a wrist cuff and the oscillometric metric method of measurement.

Device Story

Duo-Max HMF-100 combines blood pressure (BP) monitor and blood glucose (BG) monitor in single wrist-mounted unit. BP component uses wrist cuff with oscillometric measurement method; BG component uses test strips for capillary whole blood analysis. User interface includes LCD displaying systolic/diastolic BP, pulse rate, date, and time. Device stores 180 BP and 270 BG readings. Used in home care or clinical settings by patients or healthcare professionals. Provides quantitative glucose and BP/pulse data to aid diabetes management and BP monitoring.

Clinical Evidence

Bench testing only. Device conforms to ANSI/AAMI SP-10 (BP), IEC 60601-1 (Safety), and IEC 60601-1-2 (EMC) requirements. No clinical trial data reported.

Technological Characteristics

Wrist-mounted unit with integrated cuff. Oscillometric BP measurement; test strip-based glucose measurement. Memory: 180 BP readings, 270 BG readings. Pulse rate range: 20-199 bpm. Battery-powered. Standards: ANSI/AAMI SP-10, IEC 60601-1, IEC 60601-1-2.

Indications for Use

Indicated for quantitative measurement of capillary whole blood glucose in adults for diabetes management; not for neonates, critically ill, dehydrated, or hyperosmolar patients; not for screening or diagnosis of diabetes. Also indicated for non-invasive measurement of systolic/diastolic blood pressure and pulse rate in adults in home care settings.

Regulatory Classification

Identification

A glucose test system is a device intended to measure glucose quantitatively in blood and other body fluids. Glucose measurements are used in the diagnosis and treatment of carbohydrate metabolism disorders including diabetes mellitus, neonatal hypoglycemia, and idiopathic hypoglycemia, and of pancreatic islet cell carcinoma.

Special Controls

*Classification.* Class II (special controls). The device, when it is solely intended for use as a drink to test glucose tolerance, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 862.9.

Predicate Devices

• Blood Glucose and Blood Pressure Monitor System, Model BGP-100 Sein Electronics Co., Ltd (k052108)
• Infopia GlucolabTM Blood Glucose Monitoring System (k051285)

Submission Summary (Full Text)

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510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION
DECISION SUMMARY
ASSAY AND INSTRUMENT COMBINATION TEMPLATE

A. 510(k) Number:
k080636

B. Purpose for Submission:
Clearance of a new device

C. Measurand:
Capillary whole blood glucose

D. Type of Test:
Whole blood glucose concentration through a quantitative amperometric assay
(Glucose Oxidase)

E. Applicant:
HuBDIC Co., Ltd.

F. Proprietary and Established Names:
Duo-Max Blood Pressure and Glucose Monitor, Model HMF-100

G. Regulatory Information:
1. Regulation section:
21 CFR § 862.1345, Glucose Test System
21 CFR § 870.1130, Noninvasive Blood Pressure Measurement System
21 CFR § 862.1660, Quality control material (assayed and unassayed)
2. Classification:
Class II
Class I (reserved)
3. Product code:
NBW, CGA, JJX
DXN
4. Panel:
75 (Clinical Chemistry)
74 (Cardiovascular)

H. Intended Use:
1. Intended use(s):
See indications for use below.
2. Indication(s) for use:

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The Blood pressure and glucose monitor, Duo-Max™ consists of a meter with wrist cuff and glucose test strips. The glucose test system is intended for use in the quantitative measurement of glucose in capillary whole blood taken from the fingertip, dorsal hand, ventral palm, upper arm, forearm, calf and thigh. Glucose testing is done outside the body (In Vitro diabetes mellitus, or in clinical settings by healthcare professionals. Glucose testing system is not to be used for the diagnosis or screening of diabetes. It is not intended for use on neonates. Also the blood pressure test system measures systolic and diastolic blood pressure and pulse rate from adult's wrist in the home care environment. The device employs a wrist cuff and the oscillometric metric method of measurement.

3. Special conditions for use statement(s):
- Not for use on critically ill patients, dehydrated patients or hyperosmolar patients
- Not for neonatal use
- Not for screening or diagnosis of diabetes mellitus
- Alternative site testing is for use at times of steady state only

4. Special instrument requirements:
Duo-Max Blood Pressure and Glucose Monitor, Model HMF-100

I. Device Description:
HuBDIC's Duo- Max Blood Pressure and Glucose Monitor System, Model HMF-100 combines the function of a blood pressure meter and a blood glucose monitoring system in one unit. Supplies with the meter are test strips, lancets, Lancing device, storage case, batteries and log book.

HMF-100 adopts the wrist type cuff for blood pressure monitoring. The cuff and control unit are combined into a single wrist-mounted assembly. The user interface pane has power switch, timer switch, memory switch and LCD for displaying the systolic and diastolic blood pressure, pulse rate, date and time. This device has the memory function that permits memory and display of the 180 most recent measurement results.

J. Substantial Equivalence Information:

1. Predicate device name(s):
Blood Glucose and Blood Pressure Monitor System, Model BGP-100 Sein Electronics Co., Ltd
Infopia GlucolabTM Blood Glucose Monitoring System

2. Predicate 510(k) number(s):
k052108
k051285

3. Comparison with predicate:

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| Similarities | | |
| --- | --- | --- |
| Item | Device | Predicate (k052108) |
| Detection method | Amperometry | Amperometry |
| Enzyme | Glucose oxidase
(Aspergillus niger) | Glucose oxidase
(Aspergillus niger) |
| Test range | 20-600 mg/dL | 30-550 mg/dL |
| Hematocrit range | 30-55% | 30-55% |
| Sample volume | 1 μL | 1 μL |
| Glucose test time | 5 seconds | 5 seconds |
| Differences | | |
| --- | --- | --- |
| Item | Device | Predicate |
| Pulse Rate | 20 ~ 199 pulse/min | 40 ~ 199 pulse/min |
| Number of readings stored in memory | 180 (Blood Pressure) | 60 (Blood Pressure) |
| | 270 (Blood Glucose) | 150 (Blood Glucose) |
| Size L x W x H (mm) | 64(W) x 84(W) x | 62(W) x 83(W) x |
| | 31(H)(mm) | 33(H)(mm) |
| Weight | 163g | 192g |

K. Standard/Guidance Document Referenced (if applicable):
- CLSI EP7-A, Interference Testing in Clinical Chemistry; Proposed Guideline
- ISO 15197:2003, In Vitro Diagnostic Test Systems – Requirements for Blood Glucose Monitoring Test Systems for Self Managing Diabetes Mellitus
- AAMI SP10:2002, Manual, Electronic or Automated Sphygmomanometers

L. Test Principle:
Glucose measurement is based on electrical potential caused by the reaction of glucose with the reagents contained on the strip’s electrodes. The glucose in the sample is oxidized by the enzyme glucose oxidase, and the current resulting from this enzymatic reaction is measured and converted to glucose concentration by the meter. The magnitude of the current is proportional to the concentration of glucose in the sample.

Blood pressure: the pressure sensor in the cuff detects small changes in pressure and converts them to electrical signals. The meter analyzes the signals and converts them to standard measurements of pulse rate and systolic and diastolic blood pressure.

M. Performance Characteristics (if/when applicable):
1. Analytical performance:
a. Precision/Reproducibility:
Within-Run
The testing was conducted using venous blood, collected in a heparin blood collection tube. Glucose was added to the blood to prepare 5 different levels of glucose for the testing. The glucose concentration ranges

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were: $30 - 50\mathrm{mg / dL}$ , $51 - 110\mathrm{mg / dL}$ , $111 - 150\mathrm{mg / dL}$ , $151 - 250\mathrm{mg / dL}$ , and $251 - 400\mathrm{mg / dL}$ . For each testing range, the samples were tested 50 times.

| Range (mg/dL) | Assays | Mean (mg/dL) | SD (mg/dL) | CV (%) |
| --- | --- | --- | --- | --- |
| 30~50 | 50 | 43.7 | 1.8 | 4.2 |
| 51~110 | 50 | 86.8 | 2.4 | 2.8 |
| 111~150 | 50 | 138.4 | 4.1 | 3.0 |
| 151~250 | 50 | 215.9 | 5.9 | 2.8 |
| 251~400 | 50 | 373.6 | 10.7 | 2.9 |

# Day-to-Day Precision

Three control solutions of Low, Normal and High were prepared. Each control was tested four times a day, twice in the morning and twice in the afternoon for 20 days.

| Control solution | N | mean (mg/dL) | SD (mg/dL) | CV (%) |
| --- | --- | --- | --- | --- |
| Low | 80 | 50.5 | 1.0 | 2.1 |
| Normal | 80 | 106.6 | 1.9 | 1.7 |
| High | 80 | 306.3 | 2.9 | 1.0 |

# b. Linearity/assay reportable range:

To establish the linearity of the system through the range of 20 to $600\mathrm{mg / dL}$ , 11 glucose adjusted whole blood samples across the range were tested on the meter and compared to the YSI 2300 using 5 replicate measurements. Linear regression yields the following statistics:

| Slope | 1.0031 |
| --- | --- |
| Y-intercept | 0.1625 |
| R² | 0.9999 |

# c. Traceability, Stability, Expected values (controls, calibrators, or methods):

The sponsor claims that the device is traceable to a laboratory analyzer which is calibrated to a NIST traceable glucose standard.

The two control solutions (normal and high levels) consist of buffered aqueous solutions of $\beta$ -D-glucose and non-reactive ingredients. Lot-specific ranges are printed on the test strip bottle label.

Closed Vial Stability of Control Solution: The measured glucose levels of 3 lots of each level of control solution were tested using a real-time stability study. The results showed that during the tested time frame of 847 days at room temperature, the controls were within the specified ranges. The sponsor

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claims a closed vial stability of 26 months.

Opened Vial Stability of Control Solution: The measured glucose levels of 3 lots of each level of control solution were tested during 96 days and were found to be within the specified ranges. The sponsor claims an open vial stability of 90 days.

## d. Detection limit:

The measuring range of the system is 20 - 600 mg/dL. See the linearity study above (section M.1.b.).

## e. Analytical specificity:

Spiked whole blood samples containing three levels of glucose, with and without interfering substances, were prepared to test common endogenous and exogenous substances for interference. Levels tested for each interferant (in mg/dL) are summarized below:

Low glucose sample < (60mg/dL)

| Interference substance | Highest interference Level Tested (mg/dL) | Mean of Test Results | | (mg/dL) Difference |
| --- | --- | --- | --- | --- |
| | | Glucose Level With No Interferant (mg/dL) | Glucose Level With Interferant Added (mg/dL) | |
| Acetaminophen | 20 | 45.0 | 43.4 | -1.6 |
| Bilirubin | 40 | 52.4 | 46.4 | -6.0 |
| Gentistic acid | 50 | 45.0 | 52.0 | 7.0 |
| Uric acid | 20 | 52.4 | 49.2 | -3.2 |
| Levo-Dopa | 4 | 47.6 | 46.0 | -1.6 |
| Creatinine | 30 | 45.0 | 44.2 | -0.8 |
| Methyl-Dopa | 2.5 | 47.6 | 49.2 | 1.6 |
| Tolazamide | 5 | 52.4 | 51.2 | -1.2 |
| Dopamine | 13 | 45.0 | 46.4 | 1.4 |
| Ascorbate | 3 | 45.0 | 48.0 | 3.0 |
| EDTA | 640 | 45.0 | 49.8 | 4.8 |
| Glutathione | 1 | 45.0 | 42.8 | -2.2 |
| Heparin | 1,000 | 45.0 | 43.2 | -1.8 |
| Ibuprofen | 40 | 52.6 | 48.4 | -4.2 |
| Salicylic acid | 50 | 45.0 | 44.2 | -0.8 |

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Mid-level glucose sample (170mg/dL)

| Interference substance | Highest interference Level Tested (mg/dL) | Mean of Test Results | | (%) Difference |
| --- | --- | --- | --- | --- |
| | | Glucose Level With No Interferant (mg/dL) | Glucose Level With Interferant Added (mg/dL) | |
| Acetaminophen | 20 | 171.0 | 168.6 | -1.4 |
| Bilirubin | 40 | 166.2 | 157.2 | -5.4 |
| Gentistic acid | 50 | 171.0 | 181.6 | 6.2 |
| Uric acid | 20 | 166.2 | 161.6 | -2.8 |
| Levo-Dopa | 4 | 167.6 | 164.6 | -1.8 |
| Creatinine | 30 | 171.0 | 168.8 | -1.3 |
| Methyl-Dopa | 2.5 | 167.6 | 171.2 | 2.1 |
| Tolazamide | 5 | 166.2 | 163.4 | -1.7 |
| Dopamine | 13 | 171.0 | 172.8 | 1.1 |
| Ascorbate | 3 | 171.0 | 175.2 | 2.5 |
| EDTA | 640 | 171.0 | 178.2 | 4.2 |
| Glutathione | 1 | 171.0 | 167.4 | -2.1 |
| Heparin | 1,000 | 171.0 | 167.4 | -2.1 |
| Ibuprofen | 40 | 169.2 | 162.8 | -3.8 |
| Salicylic acid | 50 | 171.0 | 168.4 | -1.5 |
| Tetracycline | 0.4 | 171.0 | 169.4 | -0.9 |
| Tolbutamide | 100 | 169.2 | 167.4 | -1.1 |
| Urea | 500 | 171.0 | 184.2 | 7.7 |
| Cholesterol | 500 | 171.0 | 179.8 | 5.1 |
| TG | 3000 | 169.6 | 179.2 | 5.7 |
| Galactose | 50 | 171.0 | 166.6 | -2.6 |

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High glucose sample $> (240\mathrm{mg / dL})$

| Interference substance | Highest interference Level Tested (mg/dL) | Mean of Test Results | | (%) Difference |
| --- | --- | --- | --- | --- |
| | | Glucose Level With No Interferant (mg/dL) | Glucose Level With Interferant Added (mg/dL) | |
| Acetaminophen | 20 | 290.2 | 285.6 | -1.6 |
| Bilirubin | 40 | 289.4 | 273.0 | -5.7 |
| Gentistic acid | 50 | 290.2 | 308.8 | 6.4 |
| Uric acid | 20 | 289.4 | 281.8 | -2.6 |
| Levo-Dopa | 4 | 291.0 | 284.6 | -2.2 |
| Creatinine | 30 | 290.2 | 286.0 | -1.4 |
| Methyl-Dopa | 2.5 | 291.0 | 296.4 | 1.9 |
| Tolazamide | 5 | 289.4 | 284.8 | -1.6 |
| Dopamine | 13 | 290.2 | 293.0 | 1.0 |
| Ascorbate | 3 | 290.2 | 297.0 | 2.3 |
| EDTA | 640 | 290.2 | 301.8 | 4.0 |
| Glutathione | 1 | 290.2 | 284.4 | -2.0 |
| Heparin | 1,000 | 290.2 | 283.2 | -2.4 |
| Ibuprofen | 40 | 289.4 | 278.6 | -3.7 |
| Salicylic acid | 50 | 290.2 | 286.4 | -1.3 |
| Tetracycline | 0.4 | 290.2 | 288.6 | -0.6 |
| Tolbutamide | 100 | 289.4 | 286.8 | -0.9 |
| Urea | 500 | 290.2 | 313.2 | 7.9 |
| Cholesterol | 500 | 288.8 | 304.4 | 5.4 |
| TG | 3000 | 291.0 | 307.4 | 5.6 |
| Galactose | 50 | 290.2 | 281.8 | -2.9 |
| Xylose | 10 | 290.2 | 284.8 | -1.9 |
| Maltose | 300 | 290.2 | 281.0 | -3.2 |

Interference testing showed that the system results in less than $\pm 10\%$ bias (or $\pm 10\mathrm{mg / dL}$ for glucose samples less than $60~\mathrm{mg / dL}$ ) in the presence of high concentrations of interferants, even beyond clinically significant ranges.

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An altitude study was performed with 9 venous blood samples ranging from 30 to 530 mg/dL. Testing was performed at altitudes of sea level and 10,000 feet (using a chamber). The test data showed that the bias versus YSI at 10,000 feet is the same bias versus YSI observed at sea level. These data indicate no additional effect due to altitude up to the claimed altitude of 10,000 feet.

Hematocrit interference was evaluated by adjusting the glucose concentrations and hematocrit levels of venous blood samples. The venous blood samples were spiked to 8 glucose concentrations (40, 70, 110, 180, 250, 350, 450, and 550 mg/dL). The hematocrit levels were adjusted to 30%, 40%, 55%. Each sample was assayed 15 times and the maximum percent bias was calculated compared to the 40% hematocrit samples. The sponsor demonstrated that the bias did not exceed ±15 mg/dL when glucose concentration is ≤75 mg/dL and bias did not exceed ±15% when glucose concentration is >75 mg/dL for hematocrit concentrations within the claimed range of 30% to 55%.

f. Assay cut-off:
Not Applicable.

2. Comparison studies:

a. Method comparison with predicate device:

To demonstrate the accuracy performance of the Duo-Max Blood Pressure and Glucose Monitor, 160 patients samples were tested in duplicate using capillary blood samples from the finger (with samples ranging from 31 to 487 mg/dL) and compared to the results from a laboratory reference method using samples taken at the same time. Samples with blood glucose levels below 50 mg/dL were obtained by glycolysis of patient samples and samples above 400 were obtained by supplementing the samples with glucose. Results are summarized below:

| | Fingerstick vs. Reference |
| --- | --- |
| Samples < 75 mg/dL within ±15 mg/dL YSI | 60/60 (100%) |
| Samples ≥ 75 mg/dL within ±20% YSI | 258/260 (99%) |
| Total | 318/320 (99%) |

A consumer study was performed with 150 lay-users and a technician to see how well results obtained from a lay user compared to results obtained by a technician. The labeling provided to the users was in English only. Each participant performed their own test and tested their blood using the instructions in the user's manual, then a technician performed a test using the same meter. Samples ranged from 50 - 537 mg/dL. Results are summarized below:

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| | Lay User Fingerstick vs. Technician Fingerstick |
| --- | --- |
| Samples < 75 mg/dL within ±15 mg/dL YSI | 25/25 (100%) |
| Samples ≥ 75 mg/dL within ± 20% YSI | 124/125 (99%) |
| Total | 149/150 (99%) |

A study was performed with 100 participants to determine if the performance of the Duo-Max on alternate site (palm, forearm, thigh, and calf) were comparable to fingertip when obtained by lay users). The labeling provided to the users was in English only. Each participant performed their own test and tested their blood using the instructions in the user's manual. Samples ranged from 61 - 485 mg/dL. Results are summarized below:

| | Dorsal Palm vs. Fingerstick | Ventral Palm vs. Fingerstick | Forearm vs. Fingerstick | Upper Arm vs. Fingerstick | Calf vs. Fingerstick | Thigh vs. Fingerstick |
| --- | --- | --- | --- | --- | --- | --- |
| Samples < 75 mg/dL within ±15 mg/dL Fingerstick | 6/6 (100%) | 6/6 (100%) | 6/6 (100%) | 7/7 (100%) | 6/6 (100%) | 8/8 (100%) |
| Samples ≥ 75 mg/dL within ± 20% Fingerstick | 93/94 (99%) | 93/94 (99%) | 93/94 (99%) | 92/93 (99%) | 93/94 (99%) | 91/92 (99%) |
| Total | 99/100 (99%) | 99/100 (99%) | 99/100 (99%) | 99/100 (99%) | 99/100 (99%) | 99/100 (99%) |

b. Matrix comparison:
Not applicable. Capillary whole blood is the only indicated matrix.

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):
The sponsor provided a readability study that indicated that the user manual, test strip labeling, and control solution labeling is at an 8th grade reading level or below.

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4. Clinical cut-off:
Not Applicable.

5. Expected values/Reference range:
The sponsor included the following expected values for normal glucose levels for people without diabetes in their strip labeling:

70 mg/dL (3.9 mmol/L) - 110 mg/dL (6.1 mmol/L)¹
Two hours after meals: less than 140 mg/dL (7.8 mmol/L)²

¹Stedmans Medical Dictionary, 27th Edition, 1999, p 755.
²American Diabetes Association Clinical Practice Recommendations 2004, Diabetes Care, Vol. 27 Supplement 1, p. S9

N. Instrument Name:
Duo-Max Blood Pressure and Glucose Monitor, Model HMF-100

O. System Descriptions:

1. Modes of Operation:
Each test strip is single use and must be replaced with a new strip for additional readings.

Does the applicant’s device contain the ability to transmit data to a computer, webserver, or mobile device?:
Yes ______ or No ☐ X

Does the applicant’s device transmit data to a computer, webserver, or mobile device using wireless transmission:
Yes ______ or No ☐ X

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:
There is no sample identification function with this device. Samples are applied directly to the test strip as they are collected.

4. Specimen Sampling and Handling:
This device is intended to be used with capillary whole blood from the finger, palm, and forearm. Since the whole blood sample is applied directly to the test strip there are no special handling or storage issues.

5. Calibration:
A code number is provided with each batch of test strips to calibrate the meter for

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that lot. The code number is associated with the meter by inserting a test strip and entering the code number to match that found on the test strip bottle. No further calibrations are required of the user.

6. **Quality Control:**
The sponsor has two levels of controls available for this meter with one level coming with the kit. When a test strip is inserted into the meter, a control can be run. An acceptable range for each control level is printed on the test strip vial label. The user is referred to a troubleshooting section at the end of the control test instructions of the owner's manual to identify possible reasons control results fall outside these ranges.

P. **Other Supportive Instrument Performance Characteristics Data Not Covered In The "Performance Characteristics" Section above:**
The blood pressure monitoring system was reviewed by the Office of Device Evaluation and found to be acceptable.

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.