Assessment of symptoms that may be related to rhythm disturbances of the heart in patients from pediatric to adult age. Patients with palpitations. Assessment of risk in Patients With or Without Symptoms of Arrhythmia. Patients with symptomatic or asymptomatic idiopathic hypertrophic cardiomyopathy and postmyocardial infarction patient with left ventricular dysfunction using arrhythmia e.g.: ventricular ectopy, as method of risk assessment. Assessment of efficacy of Antiarrhythmia Therapy. Patients with baseline high frequency, reproducible, sustained, symptomatic premature ventricular complexes supraventricular arrhythmia or ventricular tachycardia. Assessment of Pacemaker Function. Evaluation of patients with paroxysmal symptoms, detection of myopotential inhibition, detection of pacemaker mediated tachycardia, evaluation of antitachycardia pacing device function, evaluation of rate-responsive physiological pacing function. Detection of Myocardial Ischemia. Patients with chest pain suggestive of Prinzmetal's angina.
Device Story
2010 Plus Holter for Windows analyzes pre-recorded cardiac ECG data from cassette or digital storage. System performs multi-channel automatic ST analysis, frequency domain heart rate variability, and multi-channel morphology analysis. Operated by trained medical personnel in clinical settings to generate reports and review cardiac performance. Output includes ECG printouts and diagnostic reports used to identify rhythm patterns, assess pacemaker function, and evaluate ischemia. Benefits include improved diagnostic capability for cardiac rhythm disturbances and therapy monitoring.
Clinical Evidence
Bench testing only. Performance validated against industry-standard AHA, MIT, and European ST-T (EST) databases. Metrics included sensitivity (SE), positive predictivity (+P), false positive rate (FPR), duration sensitivity (DSE), and duration positive predictivity (D+P) for arrhythmias, couplets, runs, and ST analysis. Performance in high heart rates (>300 bpm) and noise conditions (baseline, electrode, muscle) was comparable to the predicate system.
Technological Characteristics
PC-based Holter analyzer (Pentium II, 128MB RAM, Windows 98/NT). Data acquisition: 2 or 3 channels, 8-bit resolution, 192 Hz sampling frequency. Connectivity: USB 1.2. Software-based analysis of ECG waveforms. Includes frequency domain heart rate variability, multi-channel ST analysis, and morphology analysis.
Indications for Use
Indicated for pediatric to adult patients requiring assessment of cardiac rhythm disturbances, arrhythmia risk (including hypertrophic cardiomyopathy and post-MI), antiarrhythmia therapy efficacy, pacemaker function, and myocardial ischemia detection.
Regulatory Classification
Identification
A medical magnetic tape recorder is a device used to record and play back signals from, for example, physiological amplifiers, signal conditioners, or computers.
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## KOO3940
# FEB = 8 2001
#### Zymed Inc.
1201-B N. Rice Ave. Oxnard, California 93030 800.235.5941 - 805.604.0457 Fax 805.604.0493
#### 510(k) Summary
Submitter:
| Gretel Lumley, Quality Assurance Engineer | |
|-------------------------------------------|-----------------------|
| Zymed Medical Instrumentation | |
| 1201 B North Rice Avenue | |
| Fax: | 805-604-0493 |
| Phone: | 800-235-5941 (7417) |
| Date of Summary: | 12-20-00 |
| Contact: | G. Lumley - see above |
Trade Name: Common Name: Classification Name: 2010 Plus Holter for Windows Holter Analyzer Electrocardiograph, ambulatory, with analysis algorithm (per 21 CFR 870.2800)
Legally marketed device to which S.E. is claimed.
Zymed Holter Scanner Model Holter 2000 -- 510(k) K990170 Zymed Holter Scanner Model 1610 - 510(k) K895208 Biosensor's Holter Monitor System - 510(k) K974192
Description: The 2010 Plus Holter for Windows is a device that analyzes recorded cardiac ECG and creates reports from the recorded data. The ECG is pre-recorded onto one of several data storage mediums, which is fed into the 2010 Plus Holter for Windows. The 2010 Plus Holter for Windows software analyzes the ECG and provides reports on a variety of cardiac data. The cardiac data that is analyzed is individual ECG waveforms and patterns of consecutive waveforms. Cardiac data provided by 2010 Plus Holter for Windows is used by trained medical personnel to diagnosis patients with various cardiac rhythm patterns.
The Zymed system presents the user with a number of clinical tools such as ECG report generation. The system also provides tools to review a patient's cardiac performance. Features such as individual ECG printouts, multi-channel automatic ST analysis, frequency domain Heart Rate Variability, multi-channel morphology analysis and Custom Reports further enhance the system's qualities as a valuable and practical clinical tool.
The system has the options available: Full Arrhythmia analysis to include multi-channel automatic ST Analysis 12 lead ECGD Data Acquisition on 2 or 3 Channels Choice of Cassette Tape or Digital Input Laser Printer
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Indications for Use:
- Assessment of symptoms that may be related to rhythm disturbances of the heart in patients . from pediatric to adult age. Patients with palpitations.
- Assessment of risk in Patients With or Without Symptoms of Arrhythmia. Patients with . symptomatic or asymptomatic idiopathic hypertrophic cardiomyopathy and postmyocardial infarction patient with left ventricular dysfunction using arrhythmia e.g.: ventricular ectopy, as method of risk assessment.
- Assessment of efficacy of Antiarrhythmia Therapy. Patients with baseline high frequency, . reproducible, sustained, symptomatic premature ventricular complexes supraventricular arrhythmia or ventricular tachycardia.
- Assessment of Pacemaker Function. Evaluation of patients with paroxysmal symptoms, . detection of myopotential inhibition, detection of pacemaker mediated tachycardia, evaluation of antitachycardia pacing device function, evaluation of rate-responsive physiological pacing function.
- Detection of Myocardial Ischemia. Patients with chest pain suggestive of Prinzmetal's . angina.
Review of Technology characteristics compared to the predicate device:
| Specification/Feature | Current Holter<br>Holter Scanner Holter 2000 | Modified Holter<br>2010 Plus Holter for<br>Windows |
|--------------------------------------|---------------------------------------------------------|----------------------------------------------------|
| Platform: | | |
| Type | IBM PC AT Compatible | Same |
| CPU | Pentium II 400 MHz<br>Or greater | Same |
| RAM | 128 Mbytes or greater | Same |
| Hard Disk | 6 Gbytes or greater | Same |
| Floppy Disk | 1.44 Mbytes | Same |
| Display | Direct Draw Capable,<br>1024 x 768 pixels, 16 bit Color | Same |
| Mouse | Yes | Same |
| USB | USB 1.2 or greater | Same |
| Software: | | |
| Operating System | Windows 98, Windows NT | Same |
| Hardware and Software<br>Diagnostics | Included | Same |
| Data Acquisition: | | |
| Number of Channels | 2 or 3 | Same |
| Resolution | 8 bit | Same |
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Sampling Frequency Playback Speed Digital Input
192 samples per second 240 times real time Yes
Same Same Same
The only difference between the two Zymed systems is the addition of Frequency Domain Heart Rate Variability to the 2010 Plus for Windows System.
Overall Holter performance was measured against industry accepted AHA (AHA), MIT (MIT) Overall Holter performance was mesal Results were typical for the Holter as targeted. Separate sensitivities (SE), positive predictivity (+P), and false positive rate (FPR) were examined for each Schartives (DD), positive production Couplets, Short runs and Long runs. Separate database and measured for Ques, Veneroitive Predictivity (E+P), Duration Sensitivity (DSE) and Duration Positive Predictivity (D+P) were examined for the European ST-T (EST) database and measured for ST analysis. High heart rates to include pediatric patients were demonstrated to be within recommended guidelines in excess of 300 bpm, and performance in the presence of noise whill 1000mmended gaudent to the old system when looking at baseline, electrode or muscle as the cause of noise.
In summary, performance data between the two systems were nearly identical, and therefore, supports a claim of Substantial Equivalence.
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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle or bird-like symbol with three curved lines representing the body and wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the symbol.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
FEB = 8 2001
Ms. Gretel Lumley Quality Assurance Engineer Zymed Inc. 1201-B North Rice Avenue Oxnard, CA 93030
Re: K003940
Trade Name: 2010 Plus Holter for Windows Regulatory Class: II (two) Product Code: MLO Dated: January 26, 2001 Received: January 29, 2001
Dear Ms. Lumley:
We have reviewed your Section 510(k) notification of intent to market the device referenced
for the indically of the last to the last the last interestively for the indicati We have reviewed your Section 910(x) notificantially equivalent (for the indications for use above and we nave delemined the devices marketed in interstate comments, or to devices th stated in the enclosure) to legally marked preaced is al Device Amendments, or to devices that
prior to May 28, 1976, the enactment date of the Federal Food, Drug, and prior to May 26, 1970, the chaomicn auto of the Federal Food, Drug, and Cosmetic Act (Act). You may, therefore, market the device, subject to the general control Cosmetic Act (Act). Tourmay, merciolo, manuel as act include requirements for annual provisions of the Act. "The general control provisions of the receing, and prohibitions against
registration, listing of devices, good manufacturing practice, labeling, and p misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III If your device is classifica (see abovo) into such additional controls. Existing major regulations (Premarket Apploval), it may be subject to saal and in the Code of Federal Regulations, Title Courset Good allecting your device can be round in also somes compliance with the Current Good 893. A substantially Cqurvaicht decommination the Quality System Regulation (OS) for Manufacturing I Tactice requirements, as certe Part 820) and that, through periodic QSS
Medical Devices: General regulation (21 CFR Part 820) and that, through personalisms, Medical Devices. General regulation (FDA) will verify such assumptions. Failure to mspections, the Food and Drag i may result in regulatory action. In addition, comply with the Unit Tegulation may result in regared in the Federal Register. Please FDA may publish luruler announcements contoning Jour affect any obligation you
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Page 2 - Ms. Lumley
might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4645. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrh/dsma/dsmamain.html".
Sincerely yours,
Stypt Rhodes
James E. Dillard III Director Division of Cardiovascular and Respiratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosures
{5}------------------------------------------------
#### 510(k) Number:
Device Name: 2010 Plus Holter for Windows
Indications for Use:
- Assessment of symptoms that may be related to rhythm disturbances of the heart in patients . from pediatric to adult age. Patients with palpitations.
- Assessment of risk in Patients With or Without Symptoms of Arrhythmia. Patients with . symptomatic or asymptomatic idiopathic hypertrophic cardiomyopathy and postmyocardial infarction patient with left ventricular dysfunction using arrhythmia e.g .: ventricular ectopy, as method of risk assessment.
- Assessment of efficacy of Antiarrhythmia Therapy. Patients with baseline high frequency, . reproducible, sustained, symptomatic premature ventricular complexes supraventricular arrhythmia or ventricular tachycardia.
- Assessment of Pacemaker Function. Evaluation of patients with paroxysmal symptoms, . detection of myopotential inhibition, detection of pacemaker mediated tachycardia, evaluation of antitachycardia pacing device function, evaluation of rate-responsive physiological pacing function.
- Detection of Myocardial Ischemia. Patients with chest pain suggestive of Prinzmetal's . angina.
### (PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Atut Rhodes
Division of Cardiovascular & Respiratory Devices
510(k) Number K003940
Prescription Use (CFR21 CFR 801.109)
or
Over-The-Counter Use
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.