FORA D40 BLOOD GLUCOSE PLUS BLOOD PRESSURE MONITORING SYSTEM
Applicant
Taidoc Technology Corporation
Product Code
NBW · Clinical Chemistry
Decision Date
Dec 20, 2011
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 862.1345
Device Class
Class 2
Indications for Use
The FORA D40d Blood Glucose plus Blood Pressure Monitoring System is intended to be used for the quantitative measurement of glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm. This system is intended to be used by a single person and should not be shared. The FORA D40d Blood Glucose plus Blood Pressure Monitoring System is intended for self testing outside the body (in vitro diagnostic use) by people with diabetes at home as an aid to monitor the effectiveness of diabetes control. This system should not be used for the diagnosis of or screening for diabetes, nor for neonatal use. Alternative site testing should be done only during steady – state times (when glucose is not changing rapidly). The FORA D40d Test Strips are for use with the FORA D40d Blood Glucose plus Blood Pressure Monitoring System to quantitatively measure glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm. This system is also intended to be used to measure non-invasively the systolic and diastolic blood pressure and pulse rate of an adult individual at home. The blood pressure is measured by using an inflatable cuff wrapped around the arm. This system contains speaking function, but is not intended for use by the visually impaired. The FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System is intended to be used for the quantitative measurement of glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm. This system is intended for multiple-patient use in professional healthcare settings as an aid to monitor the effectiveness of diabetes control. This system is only used with single-use auto-disabling lancing devices. The FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System should not be used for the diagnosis of or screening for diabetes, nor for neonatal use. Alternative site testing such as the palm, forearm, and upper arm should be done only during steady – state times (when glucose is not changing rapidly). The FORA Wisdom D40d Test Strips are for use with the FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System to quantitatively measure glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm. This system is also intended to be used to measure non-invasively the systolic and diastolic blood pressure and pulse rate of an adult individual at home. The blood pressure is measured by using an inflatable cuff wrapped around the arm. This system contains speaking function, but is not intended for use by the visually impaired.
Device Story
System combines glucose meter and oscillometric blood pressure monitor. Glucose measurement: electrochemical amperometric assay using glucose oxidase; requires 0.5µL capillary blood; provides results in 5 seconds. Blood pressure measurement: non-invasive oscillometry via arm cuff; provides systolic/diastolic pressure and pulse rate. Used at home (single-patient) or professional settings (multiple-patient). Features include speaking function, USB/Bluetooth data transmission, and automatic temperature compensation via thermistor. Healthcare providers/patients use output to monitor diabetes control and blood pressure trends. Benefits include integrated monitoring, ease of use, and data connectivity for clinical review.
Clinical Evidence
Consumer study performed for blood glucose accuracy at fingertip and alternative sites (palm, forearm, upper arm) compared to YSI-2300 reference. Blood pressure accuracy validated against reference method per ANSI/AAMI SP10 requirements. Device met all ISO 15197 and ANSI/AAMI SP10 performance criteria.
Technological Characteristics
System includes monitor, test strips, control solution, and inflatable cuff. Glucose sensing via electrochemical test strips. Blood pressure via oscillometric method. Complies with IEC/EN 60601-1, IEC/EN 60601-1-2, EN 61326-1, IEC/EN 61010-1, and IEC/EN 61010-2-101. Includes audio output functionality.
Indications for Use
Indicated for quantitative measurement of capillary whole blood glucose and non-invasive blood pressure/pulse rate in adults. Intended for diabetes management aid. Contraindicated for neonates, diabetes diagnosis/screening, patients with dehydration, hypotension, shock, hyperglycemic-hyperosmolar state, or common arrhythmia. Alternative site testing restricted to steady-state conditions.
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
TD-3252 Blood Glucose plus Blood Pressure Monitoring System (k091555)
Submission Summary (Full Text)
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# 510(k) SUBSTANTIAL EQUIVALENCE DETERMINATION DECISION SUMMARY ASSAY AND INSTRUMENT COMBINATION TEMPLATE
A. 510(k) Number:
k101926
B. Purpose for Submission:
New device
C. Measurand:
Capillary whole blood glucose and blood pressure
D. Type of Test:
Whole blood glucose concentration through a quantitative amperometric assay (Glucose Oxidase)
E. Applicant:
TaiDoc Technology Corporation
F. Proprietary and Established Names:
There are two proprietary names for the same device intended for:
1. Single patient use: FORA D40d Blood Glucose plus Blood Pressure Monitoring System
2. Multiple patient use: FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System
G. Regulatory Information:
1. Regulation section:
21 CFR § 862.1345 Glucose Test System
21 CFR 870.1130 Noninvasive blood pressure measurement system
2. Classification:
Class II (assay)
3. Product code:
NBW, Blood Glucose Test System, Over-the-Counter
CGA, Glucose Oxidase
DXN, System, Measurement, Blood-Pressure, Non-Invasive
4. Panel:
Clinical Chemistry (75) and Cardiovascular
H. Intended Use:
1. Intended use(s):
See indication for use below.
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2. Indication(s) for use:
1. FORA D40d Blood Glucose plus Blood Pressure Monitoring System
Indications for Use:
The FORA D40d Blood Glucose plus Blood Pressure Monitoring System is intended to be used for the quantitative measurement of glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm. This system is intended to be used by a single person and should not be shared.
The FORA D40d Blood Glucose plus Blood Pressure Monitoring System is intended for self testing outside the body (in vitro diagnostic use) by people with diabetes at home as an aid to monitor the effectiveness of diabetes control. This system should not be used for the diagnosis of or screening for diabetes, nor for neonatal use. Alternative site testing should be done only during steady – state times (when glucose is not changing rapidly).
The FORA D40d Test Strips are for use with the FORA D40d Blood Glucose plus Blood Pressure Monitoring System to quantitatively measure glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm.
This system is also intended to be used to measure non-invasively the systolic and diastolic blood pressure and pulse rate of an adult individual at home. The blood pressure is measured by using an inflatable cuff wrapped around the arm.
This system contains speaking function, but is not intended for use by the visually impaired.
2. FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System
Indications for Use:
The FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System is intended to be used for the quantitative measurement of glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm. This system is intended for multiple-patient use in professional healthcare settings as an aid to monitor the effectiveness of diabetes control. This system is only used with single-use auto-disabling lancing devices.
The FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System should not be used for the diagnosis of or screening for diabetes, nor for neonatal use. Alternative site testing such as the palm, forearm, and upper arm should be done only during steady – state times (when glucose is not changing rapidly).
The FORA Wisdom D40d Test Strips are for use with the FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System to quantitatively measure glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips, palm, forearm, and upper arm.
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This system is also intended to be used to measure non-invasively the systolic and diastolic blood pressure and pulse rate of an adult individual at home. The blood pressure is measured by using an inflatable cuff wrapped around the arm.
This system contains speaking function, but is not intended for use by the visually impaired.
3. Special conditions for use statement(s):
- For in vitro diagnostic use only
- Over-the-Counter and Prescription Use
The following limitations apply to the glucose measurement function:
- Not intended for use on neonates
- Not for the diagnosis of or screening for diabetes mellitus
- Not for use on patients who are dehydrated, hypotensive, in shock, or for individuals in hyperglycemic-hyperosmolar state, with or without ketosis.
- Critically ill patients should not be tested with a blood glucose meter.
- Allows testing on the fingertip, palm, forearm, upper arm, calf, or thigh
- Alternative site testing (AST) can be used only during steady-state blood glucose conditions. AST should ONLY be used in the following intervals:
- In a pre-meal or fasting state (more than 2 hours since the last meal)
- Two hours or more after taking insulin
- Two hours or more after exercise
- Not intended for use by the visually impaired
The following limitations apply to the blood pressure measurement function:
- Allows testing only on the arm
- Not for use in the presence of common arrhythmia
4. Special instrument requirements:
1. FORA D40d Blood Glucose plus Blood Pressure Meter
2. FORA Wisdom D40d Blood Glucose plus Blood Pressure Meter
I. Device Description:
This system consists of a glucose meter, arm cuff, user manual, protective wallet, quick start user guide, daily log book, warranty card, and batteries. Control solutions (cleared in k093724) are not included in the kit with the meter and are sold separately.
J. Substantial Equivalence Information:
1. Predicate device name(s):
TD-3252 Blood Glucose plus Blood Pressure Monitoring System
2. Predicate k number(s):
k091555
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3. Comparison with predicate:
| Item | FORA D40d/FORA Wisdom D40d
Blood Glucose plus Blood Pressure Monitoring Systems | TD-3252 Blood Glucose plus Blood Pressure (k091555) |
| --- | --- | --- |
| Blood Glucose Test Principle: Similarities and Differences | | |
| Intended use | The FORA D40d/ Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System are intended for use in the quantitative measurement of glucose in fresh capillary whole blood from the finger and the following alternative sites: palm, forearm and upper-arm. It is intended for use by people with diabetes mellitus for a single patient at home as an aid in monitoring the effectiveness of diabetes control. The alternative site testing can be used only during steady-state blood glucose conditions. It is not intended for the diagnosis of or screening for diabetes mellitus, hypertension, or for testing on neonates.
The systems are also intended to be used to measure non-invasively the systolic and diastolic blood pressure and pulse rate of an adult individual at home. The blood pressure is measured by using an inflatable cuff wrapped around the arm.
The systems offer cable and wireless communication function which is able to transmit the test result. It contains speaking function but is not intended for use by the | Same |
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| | visually impaired. | |
| --- | --- | --- |
| Enzyme | Glucose Oxidase | Same |
| Test sample | Whole blood from fingertip, palm, forearm, and upper-arm | Whole blood from fingertip, palm, forearm, upper-arm, calf and thigh |
| Measuring range | 20 – 600 mg/dL | Same |
| PC connection/Transmission function | USB and Bluetooth | RS232 and Bluetooth |
| Reaction time | 5 seconds | 7 seconds |
| Code function | No coding | No coding |
| Storage/Transportation condition | 39°F – 104°F (4°C - 40°C), below 85% R.H. | Same |
| Operation condition | 10°C (50°F) to 40°C (104°F), below 85% R.H. | Same |
| Temperature compensation | Automatic compensation with built-in thermister | Same |
| Speaking function | Yes | Yes |
| Strip ejector | Yes | Yes |
| Earphone port | Yes | Yes |
| Memory | 864 measurements | 400 measurements |
| Measurement mode | General, AC, PC and QC (quality control) | Same |
| Special message | Lo/Hi/Ketone | Same |
| Blood Pressure Test Principle: Similarities and Differences | | |
| Detection method | Oscillometry – non-invasive arm measurement | Same |
| Inflation & Deflation | Automatic control | Same |
| Maximum inflation pressure | 300 mmHg | 280 mmHg |
| Systolic Measurement Range | 55 mmHg – 255 mmHg | 50 mmHg – 250 mmHg |
| Diastolic Measurement Range | 25 mmHg – 195 mmHg | 30 mmHg – 180 mmHg |
| Pulse rate | 40 -199 per minute | Same |
| Measurement mode | Single measurement and triple measurements for obtaining an average value | Single measurement |
| Accuracy | Blood pressure: ±3 mmHg or ±2% of reading; Pulse rate: ±4% of reading | Same |
# K. Standard/Guidance Document Referenced (if applicable):
- ISO 14971:2007. Medical devices-Application of risk management to medical
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devices.
- ISO 15197. In vitro diagnostic test systems. Requirements for blood-glucose monitoring systems for self-testing in managing diabetes mellitus.
- EN 60601-1-1. Medical electrical equipment, Part 1-1. General requirements for safety. Safety requirements for medical electrical systems.
- EN 60601-1-2:2001 (A1:2006). Medical electrical equipment, Part 1-2. General requirements for basic safety and essential performance. Electromagnetic Compatibility.
- EN 61326-1:2006. Electrical equipment for measurement, control, and laboratory use. EMC Requirements. General requirements.
- IEC/EN 61010-2-101:2002. Safety requirements for electrical equipment for measurement, control, and laboratory use, Part 2-101. Particular requirements for in vitro diagnostic (IVD) medical equipment.
- ISO15197:2003 ISO 14971:2000 - Medical devices – Application of risk management
L. Test Principle:
The FORA D40d/FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring uses electrochemical methodologies. This system quantitatively measures blood glucose levels using an amperometric method, which involves detecting the current produced from glucose oxidation. The electrons generated during this reaction are transferred from the blood to the electrodes. The magnitude of the resultant current is proportional to the concentration of glucose in the specimen and the signal is converted into a readout displayed on the meter.
M. Performance Characteristics (if/when applicable):
1. Analytical performance:
a. Precision/Reproducibility:
The sponsor performed precision studies in accordance with the ISO 15197 and CLSI EP-5A. Venous whole blood adjusted to 5 glucose levels with hematocrit ~45% was used for within-day precision studies. Each concentration was tested 10 times each on 10 meters, using 3 test strip lots, for a total of 300 tests per blood glucose level. Results are summarized below:
Within Day precision:
| | Level 1 | | | Level 2 | | | Level 3 | | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Lot | Average (mg/dL) | SD (mg/dL) | %CV | Average (mg/dL) | SD (mg/dL) | %CV | Average (mg/dL) | SD (mg/dL) | %CV |
| 1 | 42.8 | 1.86 | 4.36 | 80.3 | 3.13 | 3.90 | 146.0 | 4.20 | 2.88 |
| 2 | 42.6 | 1.56 | 3.67 | 77.7 | 2.99 | 3.85 | 146.8 | 3.54 | 2.41 |
| 3 | 42.7 | 1.85 | 4.33 | 78.8 | 3.18 | 4.03 | 148.3 | 2.64 | 1.78 |
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| | Level 4 | | | Level 5 | | |
| --- | --- | --- | --- | --- | --- | --- |
| Lot | Average (mg/dL) | SD (mg/dL) | %CV | Average (mg/dL) | SD (mg/dL) | %CV |
| 1 | 203.5 | 4.47 | 2.20 | 307.1 | 6.93 | 2.26 |
| 2 | 204.4 | 5.75 | 2.81 | 302.7 | 6.59 | 2.18 |
| 3 | 203.7 | 3.82 | 1.88 | 307.0 | 7.13 | 2.32 |
In addition to the study above, the sponsor also evaluated day-to-day precision using control samples with 3 different levels of glucose. Three lots of test strips and 10 meters were used in the study, with 1 test performed on each meter per day for 10 days, for a total of 100 tests per control level. Results for each test strip lot are summarized below:
Between Day precision:
| | Level 1 | | | Level 2 | | | Level 3 | | |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Lot | Average (mg/dL) | SD (mg/dL) | %CV | Average (mg/dL) | SD (mg/dL) | %CV | Average (mg/dL) | SD (mg/dL) | %CV |
| 1 | 83.7 | 2.06 | 2.46 | 145.0 | 3.83 | 2.64 | 334.9 | 4.82 | 1.44 |
| 2 | 82.5 | 2.75 | 3.33 | 145.4 | 2.98 | 2.05 | 334.9 | 5.76 | 1.72 |
| 3 | 82.1 | 2.45 | 2.98 | 144.9 | 2.56 | 1.77 | 334.8 | 5.66 | 1.69 |
b. Linearity/assay reportable range:
The sponsor performed linearity studies using whole blood samples with 11 different glucose concentration ranges (from $\sim 10$ to $\sim 780\mathrm{mg / dL}$ ). Testing was performed using the FORA D40d/ FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring Systems and the YSI-2300 glucose analyzer (reference method). Three lots of test strips were used in the study. Linear regression analysis for each test strip lot is summarized below:
Lot 1 $y = 0.9621x + 5.6476, r^2 = 0.9975$
Lot 2 $y = 0.9514x + 7.1043, r^2 = 0.9973$
Lot 3 $y = 0.9605x + 6.0252, r^2 = 0.9971$
The measuring range of the FORA D40d/ FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System is $20 - 600\mathrm{mg / dL}$
c. Traceability, Stability, Expected values (controls, calibrators, or methods):
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The method comparison was performed using the proposed device and YSI 2300 glucose analyzer.
Controls: The 3-level control solutions were originally cleared in k093724. However, values of these Control Solutions specific for use with the FORA D40d/ FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring System, were established by repeat analysis using 25 FORA D40d/ FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring devices and 25 corresponding test strips. The mean and standard deviation are used to establish the acceptable range for the strips.
Calibration: no calibration is required by the user.
## Stability:
Storage Stability Study: The storage claim for this device is: 90 days for open vial of test strips and controls stored at 39 – 104 °F (4 – 40 °C) and 24 months for unopened vials of strips and controls stored at 39 – 104 °F. The study protocols (accelerated testing and real time studies), summary of results and acceptance criteria were reviewed and found to be adequate.
## d. Detection limit:
The measuring range of the devices is 20-600 mg/dL. This range was validated via the linearity study (see section M.1.b.).
## e. Analytical specificity:
The sponsor performed interference studies with spiked venous blood samples at three glucose concentrations (~70, 120 and 300 mg/dL) that were prepared and divided into a test (dosed) pool and a control pool. The potential interferants were added to the sample, tested at least at two concentrations (therapeutic/normal and above therapeutic/toxic) and each sample was analyzed in duplicate using 4 FORA D40d/ FORA Wisdom D40d Blood Glucose plus Blood Pressure Monitoring Systems. The table below lists all substances tested at concentrations with insignificant (<10%) interference:
| Substance | Concentration with <10% interference (mg/dL) |
| --- | --- |
| Acetaminophen | 6.25 |
| Acetylsalicilic acid | 50 |
| Acyclovir | 3.1 |
| Allopurinol | 5 |
| Amitriptyline | 0.27 |
| Amoxicillin | 12.5 |
| Ampicilin | 5 |
| Ascorbic acid | 5 |
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| Aspirin | 60 |
| --- | --- |
| Atenolol | 10 |
| Bicarbonate | 40 mM |
| Bile acids | 6 |
| Bilirubin | 20 |
| Caffeine | 10 |
| Calcium | 5 mM |
| Chloride | 140 mM |
| Cholesterol | 500 |
| Clonidine | 2 |
| Creatinine | 5 |
| Digoxin | 0.16 |
| Diphenhydramine | 1 |
| Dopamine | 1.25 |
| Enalapril | 0.15 |
| K2EDTA | 180 |
| K3EDTA | 175.5 |
| Erythromycin | 20 |
| Estrone | 0.1 |
| Ephedrine HCl | 60 |
| Famotidine | 0.13 |
| Fluoxetine | 0.8 |
| Fructose | 1000 |
| Furosemide | 2 |
| Galactose | 250 |
| Gentisic acid | 2 |
| Glutathione | 23 |
| Glyburide | 1.07 |
| Hemoglobin | 100 |
| Heparin (Li) | 1700 U/dL |
| Heparin (Na) | 1700 U/dL |
| Ibuprofen | 55 |
| Lactose | 1000 |
| Lactitole | 1000 |
| L-dopa | 1.4 |
| Lidocaine | 6 |
| Magnesium | 5 mM |
| Maltitole | 1000 |
| Maltose | 1000 |
| Mannitol | 1000 |
| Mannose | 250 |
| Metaproterenol | 1.81 |
| Methyl-dopa | 1.875 |
| Metoprolol | 0.3 |
| Naproxen | 100 |
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| Nifedipine | 0.17 |
| --- | --- |
| Nortriptyline | 0.15 |
| Penicillin | 12 |
| pH | 6.7 – 9.8 |
| Phenytoin | 10 |
| Piroxicam | 5 |
| Potassium | 10 mM |
| Pralidoxime Iodide | 5 |
| Sodium | 200 mM |
| Sorbitol | 1000 |
| Sulfamethoxazole | 120 |
| Sulfate | 5 mM |
| Terfenadine | 0.45 |
| Tetracycline | 4 |
| Theophylline | 25 |
| Tolazamide | 12.5 |
| Tolbutamide | 64 |
| Total protein | 12000 |
| Triglycerides | 2000 |
| Urea | 600 |
| Uric acid | 10 |
| Vancomycin | 25 |
| Verapamil | 0.45 |
| Vitamin E | 20 |
| Warfarin | 2 |
| Xylitol | 1000 |
| Xylose | 6.25 |
f. Assay cut-off: Not applicable
2. Comparison studies:
a. Method comparison with predicate device:
The sponsor conducted a combined accuracy study and consumer study, with trained operators and 150 samples (136 study subjects/natural patient samples + 14 altered samples) comparing accuracy of the candidate device to the YSI 2300 analyzer. The study subjects ranged in age, education, and were about equally divided between males and females. The blood samples with glucose concentrations ranging from 22 to 581 mg/dL were tested. Samples with glucose concentrations less than 40 and greater than 400 mg/dL were either glycolyzed or spiked and tested by trained operators as well as lay-users. Distribution of blood glucose concentration across the samples tested was in accordance with the ISO15197. The studies met the ISO 15197 accuracy
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criteria where ninety-five percent (95%) of the individual glucose results shall fall within $\pm 15\mathrm{mg/dL}$ of the results at glucose concentrations $< 75\mathrm{mg/dL}$ and within $\pm 20\%$ at glucose concentrations $\geq 75\mathrm{mg/dL}$. The results relative to YSI are summarized in the tables below:
**Trained operators vs. YSI**
**Linear Regression Analysis:**
Finger: $y = 1.004x + 3.8033$, $r^2 = 0.9849$
Palm: $y = 0.9969x + 1.8077$, $r^2 = 0.9801$
Forearm: $y = 1.004x + 3.6933$, $r^2 = 0.9867$
Upper arm: $y = 0.9835x + 6.2784$, $r^2 = 0.9831$
For samples $< 75\mathrm{mg/dL}$
| | Within ± 5 mg/dL | Within ± 10 mg/dL | Within ± 15 mg/dL |
| --- | --- | --- | --- |
| Fingertip | 20/26 (77%) | 25/26 (96%) | 26/26 (100%) |
| Palm | 15/26 (58%) | 25/26 (96%) | 26/26 (100%) |
| Forearm | 15/24 (54%) | 23/24 (96%) | 24/24 (100%) |
| Upper arm | 16/25 (64%) | 23/25 (96%) | 25/25 (100%) |
For samples $\geq 75\mathrm{mg/dL}$
| | Within±5% | Within±10% | Within±15% | Within±20% |
| --- | --- | --- | --- | --- |
| Fingertip | 64/124 (52%) | 100/124 (81%) | 120/124 (97%) | 124/124 (100%) |
| Palm | 57/124 (44%) | 92/124 (73%) | 120/124 (97%) | 124/124 (100%) |
| Forearm | 55/126 (44%) | 92/126 (73%) | 119/126 (94%) | 126/126 (100%) |
| Upper arm | 48/125 (38%) | 87/125 (70%) | 121/125 (97%) | 125/125 (100%) |
**Lay-users vs. YSI**
**Linear Regression Analysis:**
Finger: $y = 1.0622x + 0.55771$, $r^2 = 0.9789$
Palm: $y = 1.0427x - 4.9914$, $r^2 = 0.9722$
Forearm: $y = 1.0154x + 1.393$, $r^2 = 0.9747$
Upper arm: $y = 1.0306x - 1.956$, $r^2 = 0.9711$
| For samples < 75 mg/dL | Within ± 5 mg/dL | Within ± 10 mg/dL | Within ± 15 mg/dL |
| --- | --- | --- | --- |
| Fingertip | 13/18 (72%) | 17/18 (94%) | 18/18 (100%) |
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| Palm | 9/18 (50%) | 17/18 (94%) | 18/18 (100%) |
| --- | --- | --- | --- |
| Forearm | 11/16 (69%) | 15/16 (94%) | 16/16 (100%) |
| Upper arm | 8/17 (47%) | 16/17 (94%) | 17/17 (100%) |
For samples $\geq 75\mathrm{mg / dL}$
| | Within±5% | Within±10% | Within±15% | Within±20% |
| --- | --- | --- | --- | --- |
| Fingertip | 50/118 (42%) | 82/118 (69%) | 112/118 (95%) | 118/118 (100%) |
| Palm | 38/118 (32%) | 78/118 (66%) | 113/118 (96%) | 118/118 (100%) |
| Forearm | 46/120 (38%) | 83/120 (69%) | 114/120 (95%) | 120/120 (100%) |
| Upper arm | 38/119 (32%) | 80/119 (67%) | 113/119 (95%) | 119/119 (100%) |
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:
Expected blood glucose levels for people without diabetes (referenced from the American Diabetes Association, Clinical Practice Recommendations (2010). Diabetes Care, Vol. 33, Supplement 1, p. S1-S100.
Time
Fasting and before meals
Two hours after meals
Range (mg/dL)
Less than 100 mg/dL
Less than 140 mg/dL
Range (mmol/L)
5.6mmol/L
7.8 mmol/dL
N. Instrument Name:
FORA D40d (TD-3216A) Blood Glucose Meter
FORA Wisdom D40d (TD-3216B) Blood Glucose Meter
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O. Systems 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 ☐ X (reviewed under k070941) or No ☐
Does the applicant’s device transmit data to a computer, webserver, or mobile device using wireless transmission?:
Yes ☐ X or No ☐
2. Software:
FDA 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 and other alternate sites (palm, forearm, and upper-arm only). Since the whole blood sample is applied directly to the test strip, there are no special handling or storage issues.
5. Calibration:
No calibration is required by the user. The meter accommodates auto-coding, in that each strip is designed and manufactured to code the meter appropriately when the strip is inserted.
6. Quality Control:
The sponsor has three levels of controls that are not provided with the device, but can be purchased separately. When a test strip is inserted into the meter, each control can be measured by following the instructions for “Performing a Control Solution Test” provided in the User’s Manuals for the meters. An acceptable range for each control level is printed on the test strip vial label. If the test results fall outside the range printed on the test strip vial, the user is instructed to contact the Customer Care Line at 1-866-469-2632 for customer support. The Customer Care service is available 24 hours a day, 7 days a week, 365 days a year.
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P. Other Supportive Instrument Performance Characteristics Data Not Covered In The "Performance Characteristics" Section above:
1. These devices are intended for single-patient use (FORA D40d) and multiple-patient use (FORA Wisdom D40d). Disinfection studies (viral efficacy studies) were performed by an outside service to evaluate the virus elimination effectiveness of disinfecting wipes in preventing the spread of bloodborne pathogens, particularly hepatitis B virus (HBV). Specifically, Micro-Kill+ cleaner disinfectant towels (with EPA registration # 59894-10-37549) were validated demonstrating complete inactivation of live virus. The sponsor does not market a lancing device for use with the device. The sponsor also performed robustness studies and demonstrated that there was no change in performance or in the external materials of the meters after 10,000 cleaning and disinfection cycles designed to simulate 5 years (5 cleaning and disinfection cycles per day) of single-patient device use or 3 years of multiple-patient use with cleaning and disinfecting after each patient up to 9 uses per day. In addition, the sponsor provided a risk analysis specific to the potential harm due to infection. Labeling has been reviewed for adequate instructions in validated cleaning and disinfection procedures.
2. Hematocrit Study: A study to evaluate the effect of hematocrit was conducted on samples with 9 glucose concentrations spanning the range of 20-600 mg/dL at 9 hematocrit levels (20, 25, 30, 35, 40, 45, 50, 55, and 60%). Each glucose level/hematocrit combination was tested in duplicates of 6 using one test strip lot. The results from this study were within ±15% individual bias, supporting the claimed hematocrit range of 20-60%. Results of samples at each hematocrit level were compared to samples with the same glucose concentration at normal (40%) hematocrit as well as to the corresponding YSI value. All individual results for each meter type were ±15% of the YSI, supporting the claimed hematocrit range of 20-60%.
3. Altitude Study: An altitude study was performed in an altitude simulation chamber with whole blood spiked samples spanning the range of ~20 to 600 mg/dL. The device-specific measurements at level 0 ("sea level") were compared to the "high altitude" measurements and to the YSI measurements as well. The study protocol and data were provided, reviewed and found to be adequate. Altitude up to 11500 feet (3500 m) does not affect test results of the FORA D40d/FORA Wisdom D40d Monitoring Systems.
4. Temperature and humidity studies: Temperature and humidity studies were conducted to demonstrate that the FORA D40d/FORA Wisdom D40d Blood Glucose Monitoring Systems can be used at temperatures of 4 to 40°C and at a relative humidity below 85%, and stored at temperatures of 4 to 40°C with a relative humidity below 85%. The FORA D40d test strips are stable for 24 months when stored unopened and 90 days when stored opened at 4 to 40°C with a relative humidity below 85%. The study protocol and data of individual measurements compared to the YSI across the entire measuring range were provided and found to be adequate.
14
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5. Open-vial-in-use test strip studies were performed at the combined extremes of 10±2°C (46.4-56.3°F) and RH: 10 %, 10±2°C RH:85%, 40±2°C (100.4- 107.6°F) RH:10 %, and 40±2°C RH:85% with venous blood samples with concentrations across the measuring range and compared to the YSI. The study protocol, data and ±10% bias of individual measurements across the entire measuring range when compared to YSI were provided and found to be adequate.
6. A study to evaluate the effect of different sample volumes (0.3, 0.4, 0.5, 0.6, and 1.0μl) was conducted to demonstrate that the 0.5 μl volume provides accurate reading. The results from this study for the sample volume of 0.5 μl were within ±10% individual bias across the entire measuring range when FORA D40d/FORA Wisdom D40d measurements were compared to the YSI-2300.
7. Lay-User Study for USB and Bluetooth mediated Data Transmission: This study was performed as a part of the lay-user study described above in 2.a. The 50 study participants, following instructions in User's manual, were able to transmit results from the meter to the PC application (cleared under k070941) via either the USB or Bluetooth features. The study participants ranged in age, education, and were about equally divided between males and females. Those study participants also completed a questionnaire in response to whether the data transmission feature is easy to use. The sponsor concluded that the users' responses indicated that data transmission function was easy to operate by following the User's manuals for both the USB and the Bluetooth mediated data transmission.
8. Lay user questionnaire: 136 lay users evaluated the ease of use of the device and the presentation of the labeling. All users thought that the FORA D40d and FORA Wisdom D40d Monitoring Systems were easy to use and most answer "easy" and "very easy" that the user manuals were written to make it easy to use.
9. The sponsor provided a readability study and obtained Flesch-Kincaid grade level scores of 8 or lower for the User's Manual and test strip insert.
10. Additional electromagnetic interference study was performed to verify these new products. The results of this study complied with standards listed in the Standard/Guidance Document Referenced section above. Electromagnetic Compatibility (EMC) testing was performed/passed and a certificate to Taidoc Technology Corporation was provided.
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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Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.