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510(k) Data Aggregation
(445 days)
The Health-e-Connect System is intended for use in the home and clinical settings by people with diabetes and healthcare providers as an aid in the review, analysis and evaluation of historical glucose test results and associated usage data in support of an effective diabetes management program.
The ALRT Health-e-Connect System (HeC) is an internet based blood glucose monitoring system that allows healthcare providers and patients the opportunity to review, analyze and evaluate the efficacy of a diabetes management program. It is expected that this functionality will significantly improve HbA1C levels in patients with diabetes. Note there are no physical, electrical, biocompatibility or sterility specifications for this device as it is software only. It performs two functions: it is a data management tool and a communication platform. The Health-c-Connect System is comprised of a home based application, legally marketed peripherals (blood glucose meters) and a server. The home based application software collects data from blood glucose meters and transmits the data over the home's existing internet connection where it is uploaded to the Health-e-Connect System's web-based servers. The server is a web-based application that collects, range checks, stores and displays historical patient blood sugar levels. It also allows patients, healthcare providers, patient relatives and other healthcare providers involved in the case to send messages to each other and share patient information. This communication is retrospective and not a real- time alert or alarm. The Healthe-Connect System is a tool to monitor patients remotely and motivate them through notifications.
The ALRT Health-e-Connect System is a software-only device designed as an internet-based blood glucose monitoring system. It allows healthcare providers and patients to review, analyze, and evaluate the efficacy of a diabetes management program. The device acts as a data management tool and communication platform, collecting data from legally marketed blood glucose meters and transmitting it to web-based servers for storage and display of historical patient blood sugar levels. It also facilitates communication among patients, healthcare providers, and patient relatives.
Here is an analysis of its acceptance criteria and the supporting studies:
1. Table of Acceptance Criteria and Reported Device Performance
Acceptance Criteria (Test) | Reported Device Performance |
---|---|
Bench Testing | |
View Glucometer Summary of a User: Correct Glucometer summary (checked against paper copy & calculations). | Pass (for all tested glucose meter models: Bayer Breez™, Bayer Contour™, Abbott Freestyle Freedom™, Abbott Freestyle Freedom Lite™, Abbott Freestyle Lite™, Abbott Precision Xtra™, Roche ACCU-CHEK™ Aviva, Roche ACCU-CHEK™ Compact Plus, Lifescan OneTouch™ Ultra 2, Lifescan OneTouch™ Ultra Mini). |
Glucometer usage uploaded into the HeC: Correct value recorded after blood test and upload from glucometer. | Pass (for all tested glucose meter models). |
Patient information and import data are not associated correctly: Log created and manually checked for each upload. | Pass (for all tested glucose meter models). |
Glucose analysis is flawed and the results are not correct in the HeC-RCS: Code checked thoroughly against other algorithms for accuracy. | Pass. |
Test 1: Connection/communication between glucose meter and ALRT HeC System (using manufacturers' data cable and various rated operating systems). | Pass (Verified for all 10 tested glucose meter models). |
Test 2: Verification of data transfer (accuracy and completeness of data, all required fields, sent to correct account). | Pass (Verified for all 10 tested glucose meter models). |
Usability / Human Factor Studies | Results of this HFS indicate that the HeC System is user friendly, is fast and easy to use and that users were able to successfully perform the various functions within the system. This included manual data entry, electronic data uploads, reports, and messaging. |
2. Sample Size Used for the Test Set and Data Provenance
- Bench Testing: The test set for bench testing involved 10 different glucose meter models from various manufacturers (Bayer, Abbott, Roche, Lifescan). The data provenance is not explicitly stated as country of origin, but it can be inferred that these are commercially available meters. The testing appears to be prospective as it involved performing specific procedures (taking blood tests, uploading data, checking values, etc.) to verify the system's functionality.
- Usability / Human Factor Studies (HFS): The test set included 22 lay users and 2 healthcare providers. The data provenance is not specified regarding country of origin, but the study was conducted to evaluate the usability of the Health-e-Connect system. This was likely prospective through surveys and observations of user interactions.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications
- Bench Testing: For the "Correct Glucometer summary (checked against paper copy & calculations)" and "Glucose analysis is flawed and the results are not correct in the HeC-RCS" tests, the ground truth was established by checking against paper copies & calculations and by comparing the analysis code against other algorithms. While it implies expert knowledge in calculations and algorithm design, the number and specific qualifications of human experts involved in these direct "ground truth" determinations are not specified.
- Usability / Human Factor Studies: The "ground truth" for usability was established through the feedback and successful task completion of the 22 lay users and 2 healthcare providers. These individuals served as the "experts" in evaluating user experience. Their specific qualifications beyond being "lay users" and "healthcare providers" are not detailed (e.g., specific roles or years of experience).
4. Adjudication Method for the Test Set
- Bench Testing: The adjudication method for bench testing involved direct verification against established references (paper copies, calculations, other algorithms) and observations of successful data transfer and accurate association. There is no mention of a formal multi-expert adjudication method (like 2+1 or 3+1). The "Pass" results suggest a direct factual comparison rather than a consensus approach.
- Usability / Human Factor Studies: The usability study relied on surveys and observations of the 22 lay users and 2 healthcare providers. The conclusion states that the system was "user friendly, fast and easy to use," implying a qualitative assessment based on the collected feedback rather than a formal multi-reader adjudication process.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
No MRMC comparative effectiveness study was done. The submission does not mention any study comparing human reader performance with and without AI assistance for tasks related to interpreting glucose data. The device is a data management and communication tool, not an AI for medical image or diagnostic interpretation.
6. Standalone (Algorithm Only Without Human-in-the-Loop Performance) Study
A standalone performance study of the data processing algorithms was conducted as part of the bench testing.
- The test: "Glucose analysis is flawed and the results are not correct in the HeC-RCS".
- The procedure: "The code which analyzes the glucometers values is checked thoroughly against other algorithms calculating the same statistics to verify accuracy."
This demonstrates an evaluation of the algorithm's accuracy in processing glucose values independently.
7. Type of Ground Truth Used
- Bench Testing: The ground truth used for bench testing included:
- Manual calculations and paper records for verifying summary accuracy.
- Direct comparison with values displayed on the physical glucometers for data transfer accuracy.
- Comparison against other established algorithms for the accuracy of glucose analysis.
- Manual logging and checking for data association.
- Usability / Human Factor Studies: The ground truth was user feedback and observed task completion, assessing aspects like user-friendliness, speed, and ease of use.
8. Sample Size for the Training Set
The document does not provide any information regarding a training set sample size. This is a software system for data management and display, not a machine learning or AI model trained on a dataset in the conventional sense for diagnostic or predictive purposes. Its functionality is based on established logical processes for data handling and communication.
9. How the Ground Truth for the Training Set Was Established
As there is no mention of a training set in the context of machine learning, the question of how its ground truth was established is not applicable based on the provided document. The software's functionality is based on direct implementation of data handling rules and communication protocols rather than learning from a labeled dataset.
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