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510(k) Data Aggregation
(307 days)
The iGlucose Blood Glucose Monitoring System is intended to be used for the quantitative measurement of glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips. The iGlucose Blood Glucose Monitoring System is intended to be used by a single person and should not be shared.
The iGlucose Blood Glucose 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. The iGlucose Blood Glucose Monitoring System should not be used for the diagnosis of, or screening for diabetes or for neonatal use.
The iGlucose Blood Glucose Test Strips are for use with the iGlucose Meter to quantitatively measure glucose (sugar) in fresh capillary whole blood samples drawn from the fingertips.
The iGlucose Blood Glucose Monitoring System consists of the iGlucose meter, the iGlucose test strips and the Rightest Glucose Control Solutions (GC550 level 2 and 4 (previously cleared under K092052). Bionime is seeking FDA's clearance to market and commercially distribute in the United States the iGlucose Meter and its corresponding iGlucose Test Strips.
The iGlucose meter is an electronic device that utilizes electrical characteristics technology. When used with its corresponding iGlucose Test Strips, it quantitatively measures glucose in a small drop of fresh capillary whole blood (minimum 0.75 µL). The blood drop is placed on the test strip where it interacts with reagents in the presence of glucose oxidase to produce an electrical current proportional to the amount of glucose in the sample. The oxidase electrochemical sensor of the meter measures the current and using meter software converts it to the corresponding glucose concentration. The glucose result is then displayed on the meter within 5 seconds.
Other system components include:
- Rightest lancing device labeled for "Single Patient Use only" as well as its . disposable sterile lancets.
- Meter charger and cable
- A clear cap for the lancing device
Here's a breakdown of the acceptance criteria and study information for the iGlucose Blood Glucose Monitoring System, extracted from the provided FDA 510(k) summary:
iGlucose Blood Glucose Monitoring System: Acceptance Criteria and Study Details
1. Acceptance Criteria and Reported Device Performance
The document states that the iGlucose meter's performance falls within acceptance criteria, and specific metrics are provided from a lay-user trial comparing the iGlucose to a reference method (YSI 2300 Plus).
| Glucose Concentration Range | Acceptance Criteria (relative to YSI) | Reported Device Performance |
|---|---|---|
| < 75 mg/dL | Not explicitly stated in table, but performance is compared against ranges. | Within ±5 mg/dL: 33.3% (2/6) Within ±10 mg/dL: 83.3% (5/6) Within ±15 mg/dL: 100.0% (6/6) |
| ≥ 75 mg/dL | Not explicitly stated in table, but performance is compared against ranges. | Within ±5%: 43.5% (64/147) Within ±10%: 81.6% (120/147) Within ±15%: 95.2% (140/147) |
| Measuring Range (Linearity) | 20-600 mg/dL | Linear regression analysis resulted in a mean slope ranging from 0.9808 to 0.9952 and an R^2^ value of 0.9996 to 0.9997, supporting linearity between 20 and 600 mg/dL. |
| Precision (Repeatability) | Not explicitly stated in table, but implied to be equivalent to predicate. | Mean mg/dL (SD, CV%) 44.4 (1.6, 3.6%) 97.6 (2.0, 2.1%) 132.5 (2.3, 1.8%) 213.2 (3.5, 1.6%) 364.0 (5.4, 1.5%) (Falls within acceptance criteria and equivalent to predicate device) |
| Precision (Intermediate) | Not explicitly stated in table, but implied to be equivalent to predicate. | Mean mg/dL (SD, CV%) 42.7 (1.2, 2.8%) 96.7 (2.0, 2.0%) 274.3 (4.6, 1.7%) (Falls within acceptance criteria and equivalent to predicate device) |
| Hematocrit Range | 20-60% | Measurements were within acceptance criteria for the entire HCT range of 20-60%. |
| Minimum Sample Volume | 0.75 µL | Error message displayed if sample < 0.70µL. At sample volumes ≥ 0.75µL, all test results were within ±10% compared to reference measurements. |
| Operating Temperature | 10-40°C (50-104°F) | Results met acceptance criteria and support this range. |
| Operating Humidity | 10-90% RH | Results met acceptance criteria and support this range. |
| Altitude | Up to 10,000 ft | Results met acceptance criteria and support this claim. |
2. Sample Sizes and Data Provenance
-
Test Set (Lay-User Trial):
- Sample Size: 153 subjects.
- Data Provenance: Conducted in a US clinic (prospective, clinical trial). ClinicalTrials.gov Identifier: NCT02709707.
-
Bench Studies (Precision, Linearity, Interferences, Hematocrit, Sample Volume, Temperature/Humidity, Altitude): Specific sample numbers are provided for each of these studies (e.g., 300 tests for each glucose level in repeatability, venous blood samples spiked to 15 levels for linearity, 19 substances at 2 glucose concentrations for interferences). The data provenance for bench studies is not explicitly stated as country of origin but implies laboratory testing.
3. Number of Experts and Qualifications for Ground Truth (Test Set)
Not applicable for this type of device and study. The ground truth for the lay-user trial and other performance studies was established using a reference laboratory instrument, not human experts.
4. Adjudication Method for the Test Set
Not applicable. The lay-user trial involved direct comparison of iGlucose readings to a reference laboratory method (YSI 2300 Plus).
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
No, an MRMC comparative effectiveness study was not done. This type of study is typically relevant for interpretative devices (e.g., imaging devices) where human readers interpret results, and the AI's impact on their performance is being evaluated. This device (blood glucose monitoring system) is an objective quantitative measurement device.
6. Standalone Performance Study
Yes, standalone performance studies were extensively conducted. The summary describes "Bench studies including evaluation of analytical performance as well as clinical performance studies" where the iGlucose meter's readings were compared directly against the reference method (YSI 2300 Plus). The lay-user trial also evaluates the device's standalone performance in the hands of lay-users.
7. Type of Ground Truth Used (Test Set)
Reference Method: The ground truth for the performance evaluations (precision, linearity, interferences, hematocrit, sample volume, temperature/humidity, altitude, and lay-user trial) was established by comparing the iGlucose meter's results to those obtained from the Yellow Springs Instrument YSI 2300 Plus analyzer. This is a recognized laboratory reference method for glucose measurement.
8. Sample Size for the Training Set
The document does not specify a separate "training set" in the context of machine learning. This is a traditional medical device (electro-chemical sensor) where performance is characterized through bench and clinical testing against a reference standard, rather than a machine learning model that requires a distinct training phase.
9. How Ground Truth for the Training Set Was Established
As mentioned above, a separate "training set" as understood in machine learning is not applicable here. The performance of the device (both subject and predicate) is based on established electrochemical principles, and its accuracy is validated through comparison to the YSI 2300 Plus reference analyzer across various conditions and samples.
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