The TruVue™ System is intended for use by patients who experience transient events that may suggest cardiac arrhythmia. Patients who require monitoring of effect of drugs to control ventricular rate in various atrial arrhythmias (e.g. atrial fibrillation). Patients with symptoms that may be due to cardiac arrhythmias. These may include but are not limited to symptoms such as: a) dizziness or lightheadedness; b) syncope of unknown etiology in which arrhythmias are suspected or need to be excluded; and c) dyspnea (shortness of breath). Patients recovering from cardiac surgery who are indicated for outpatient arrhythmia monitoring. ECG data recorded by the device can be analyzed by other processing systems, such as the BMS Century Holter system to provide Holter style reports. Caution: Federal Law (USA) restricts this device to sale by or on the order of a physician.
Device Story
TruVue system provides continuous ambulatory ECG monitoring; collects 2-channel ECG via body-worn sensor. Sensor transmits data via Bluetooth to handheld communications device; handheld transmits data to attended monitoring center via cellular or landline telephony. Data center provides full disclosure ECG for analysis by proprietary server-side algorithm and review by monitoring technician or physician. System aids in detecting cardiac arrhythmias in outpatient settings. Output allows clinicians to assess cardiac rhythm, evaluate drug efficacy, or generate Holter-style reports via external systems (e.g., BMS Century Holter). Device does not provide automated diagnostic interpretations; physician remains responsible for diagnosis.
Clinical Evidence
Bench testing only. Device performance validated against AAMI EC-38 (Ambulatory Electrocardiographs) and ANSI/AAMI EC-57 (Testing and Reporting - Performance Results of Cardiac Rhythm and ST Segment Measurement Algorithms) standards. No clinical trial data presented.
Indicated for patients experiencing transient symptoms suggesting cardiac arrhythmia, requiring drug effect monitoring for atrial arrhythmias, or recovering from cardiac surgery. Symptoms include dizziness, lightheadedness, syncope of unknown etiology, or dyspnea. Contraindicated for patients requiring attended, in-hospital monitoring for life-threatening arrhythmias.
Regulatory Classification
Identification
The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to produce a visible or audible signal or alarm when atrial or ventricular arrhythmia, such as premature contraction or ventricular fibrillation, occurs.
Special Controls
*Classification.* Class II (special controls). The guidance document entitled “Class II Special Controls Guidance Document: Arrhythmia Detector and Alarm” will serve as the special control. See § 870.1 for the availability of this guidance document.
Predicate Devices
CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector (K081257)
Medicalgorithmics Real-Time ECG Monitor and Arrhythmia Detector (K090037)
Submission Summary (Full Text)
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K100155
pi/3
| 510(k) Summary of Safety & Effectiveness | Date: Jan 14, 2010 | |
|------------------------------------------|------------------------------------------------------------------------------|-------------|
| 1.) Submitter Name & Address: | Biomedical Systems, Inc<br>77 Progress Parkway<br>Maryland Heights, MO 63043 | APR 20 2010 |
| 2.) Contact Person: | K. Michael Kroehnke<br>Phone: 314-576-6800<br>Fax: 877-581-7858 | |
| 3) Device: | | |
| Trade Name: | TruVue™ System | |
| Classification Name | Arrhythmia Detector and Alarm | |
| Product Code: | DSI | |
| Regulation No: | 870.1025 | |
| Class: | Class II, Special Controls | |
| 4) Substantial Equivalence: | | |
The TruVue™ System is substantially equivalent to following previously cleared devices:
- 1) CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector, K081257
- 2) NUVANT, Mobile Cardiac Telemetry System, K091971
3) Medicalgorithmics Real-Time ECG Monitor and Arrhythmia Detector, K090037
| | TruVue™ | CG-6108<br>ACT-3L | PocketECG | NUVANT | SE<br>Determination |
|-----------------------------------------------|---------------------------------------------------|---------------------------------------------------|---------------------------------------------------|---------------------------------------------------|---------------------|
| ECG Channels | 2 | 2 | 1 | 1 | SE, see note a |
| Ambulatory<br>ECG<br>performance<br>standards | EC 38<br>compliant | EC 38<br>compliant | EC 38<br>compliant | EC 38<br>compliant | SE, see note b |
| ECG<br>Acquisition /<br>WAN<br>communications | Body worn<br>sensor,<br>handheld<br>WAN<br>device | Body worn<br>sensor,<br>handheld<br>WAN<br>device | Body worn<br>sensor,<br>handheld<br>WAN<br>device | Body worn<br>sensor,<br>handheld<br>WAN<br>device | SE |
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| Transmission<br>Technology<br>(PAN) | Bluetooth | Bluetooth | Bluetooth | Bluetooth | SE |
|-------------------------------------|---------------------------------|---------------------------------|-------------------------------|---------------------------------|----------------|
| Transmission<br>Technology<br>(WAN) | Cellular<br>POTS<br>Modem | Cellular<br>POTS<br>Modem | Cellular | Cellular | SE, see note c |
| User Event<br>Trigger | Handheld<br>user<br>Interface | Handheld<br>User<br>Interface | Handheld<br>User<br>Interface | Patient<br>Magnet | SE, see note d |
| Algorithm | Proprietary<br>/ Server<br>side | Proprietary<br>/ Device<br>side | Proprietary<br>/ Device side | Proprietary<br>/ Device<br>side | SE, see note e |
- a) All predicates devices provide at least one channel of ECG, the minimum requirement cited in AAMI-EC38 for ambulatory arrhythmia monitoring.
- b) All predicate devices meet the ECG performance requirements (or claim SE to a predicate device that meets the performance requirements) of AAMI EC-38 and are therefore SE.
- c) All predicate devices use public communication networks for transmission of data to a monitoring center, whether cellular, POTS, or both and are therefore SE.
- d) All predicate devices have a means for the patient to indicate a symptomatic event and are therefore SE.
- e) All predicate devices contain an analysis algorithm with SE capabilities between the signal acquisition point and the reviewer of the data and are therefore SE.
### 5) Device Description
The TruVue™ system is a continuous ECG monitor and Arrhythmia detector. The system is comprised of a body worn sensor that collects, stores and transmits 2 channels of ECG, a handheld communications device that transmits the ECG to an attended monitoring center and analysis software that continuously analyzes the ECG signal for arrhythmia.
The sensor communicates with the handheld over a Bluetooth link, the handheld communicates with the data center over the cellular telephony network or a land line telephony network. Full disclosure ECG is available at the data center for use by the analysis algorithm or for review and further analysis by a monitoring technician or physician.
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# 6) Indications for use
Caution: Federal Law (USA) restricts this device to sale by or on the order of a physician.
# Indications:
- 1. The TruVue System is intended for use by patients who experience transient symptoms that may suggest cardiac arrhythmia.
- Patients who require monitoring of effect of drugs to control ventricular rate 2. in various atrial arrhythmias (e.g. atrial fibrillation)
- 3. Patients with symptoms that may be due to cardiac arrhythmias. These may include but are not limited to symptoms such as: a) dizziness or lightheadedness; b) syncope of unknown etiology in which arrhythmias are suspected or need to be excluded; and c) dyspnea (shortness of breath)
- 4. Patients recovering from cardiac surgery or interventional procedures who are indicated for outpatient arrhythmia monitoring
- 5. ECG data recorded by the device can be analyzed by other processing systems, such as the BMS Century Holter system to provide Holter style reports
### Contraindications
The TruVue System is contraindicated for those patients requiring attended, Inhospital monitoring for life threatening arrhythmias.
# Note
The TruVue system does not provide interpretive statements. Interpretation and diagnosis is the responsibility of a physician.
# 7) Conclusions
The TruVue system has the same intended use, similar operating principles and similar technological characteristics as the predicate devices. As supported by the describtive information and performance validation it is concluded that the TruVye system.ip as safe and effective as its predicates.
# 8) Referenced standards
FDA Class II Special Controls Guidance Document: Arrhythmia Detector and Alarm
-IEC 60601-1 Medical Electrical Equipment Part 1: General Requirements for Safety
-IEC 60601-1-2 Medical Electrical Equipment -- Part 1: General Requirements for Safety; Electromagnetic Compatibility
-AAMI EC 38-2007, Ambulatory Electrocardiographs
-ANSVAAMI-EC 57:1998, Testing and Reporting - Performance Results of Cardiac Rhythm and ST Segment Measurement Algorithms
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image is a seal for the Department of Health & Human Services - USA. The seal is circular and contains the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the seal is an abstract image of a bird-like figure.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room W-O66-0609 Silver Spring, MD 20993-0002
Biomedical Systems Corporation c/o Mr. K. Michael Kroehnke Director of Quality Management 77 Progress Parkway St. Louis, MO 63043
# APR 2 0 2010
K100155 Re:
> Trade/Device Name: TruVue™ Wireless Ambulatory ECG Regulatory Number: 21 CFR 870.1025 Regulation Name: Detector and Alarm, Arrhythmia · Regulatory Class: II (two) Product Code: 74 DSI Dated: March 18, 2010 Received: March 19, 2010
Dear Mr. Kroehnke:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA), You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration. Insting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Page 2 -- Mr. K. Michael Kroehnke
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. 1
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHQffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Bram D. Zuckerman, M.D.
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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#### Indications for Use
510(k) Number (if known):
### Device Name:_TruVue™ Wireless Ambulatory ECG
Indications For Use:
- 1. The TruVue™ System is intended for use by patients who experience transient events that may suggest cardiac arrhythmia
- Patients who require monitoring of effect of drugs to control ventricular rate in various atrial 2. arrhythmias (e.g. atrial fibrillation)
- 3. Patients with symptoms that may be due to cardiac arrhythmias. These may include but are not limited to symptoms such as: a) dizziness or lightheadedness; b) syncope of unknown etiology in which arrhythmias are suspected or need to be excluded; and c) dyspnea (shortness of breath)
- 4. Patients recovering from cardiac surgery who are indicated for outpatient arrhythmia monitoring.
- 5. ECG data recorded by the device can be analyzed by other processing systems, such as the BMS Century Holter system to provide Holter style reports
#### Contraindications:
The TruVue™ System is contraindicated for those patients requiring attended, In-hospital monitoring for life threatening arrhythmias.
Note: The TruVue™ System does not provide interpretive statements. Interpretation and diagnosis is the responsibility of the physician.
Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
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| (Division Sign-Off) |
|------------------------------------|
| Division of Cardiovascular Devices |
| 510(k) Number | K100155 |
|---------------|---------|
|---------------|---------|
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.