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 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. Assessment of EASI derived 12-lead ST measurements is recommended for patients that meet the following parameters: 1. Ages: 33 to 82 years 2. Heights: 147 to 185 cm (58 to 73 in) 3. Weights: 53 to 118 kg (117 to 261 lb) 4. Height to Weight ratios: 1.41 to 2.99 cm/kg (0.25 to 0.54 in/lb.)
Device Story
2010 Plus Holter for Windows analyzes pre-recorded cardiac ECG data from cassettes or digital media; provides reports on cardiac rhythm patterns and performance. Used by trained medical personnel in clinical settings to diagnose cardiac conditions. System features include individual ECG printouts, multi-channel automatic ST analysis, derived 12-lead ST analysis, and multi-channel morphology analysis. Input consists of 2 or 3-channel ECG data; output includes diagnostic reports and cardiac rhythm visualizations. Clinicians use these outputs to assess arrhythmia, pacemaker function, and myocardial ischemia, facilitating clinical decision-making regarding patient therapy and risk management.
Clinical Evidence
Bench testing only. Performance validated using industry-standard databases: AHA, MIT, and European ST-T (EST). Metrics included sensitivity (SE), positive predictivity (+P), false positive rate (FPR), episode sensitivity (ESE), episode positive predictivity (E+P), duration sensitivity (DSE), and duration positive predictivity (D+P). Results demonstrated performance nearly identical to the predicate device. High heart rate performance (up to 300 bpm) and noise robustness (baseline, electrode, muscle) were verified as equivalent to the predicate.
Technological Characteristics
IBM PC AT compatible platform; Pentium II 400 MHz CPU; 128 MB RAM; 6 GB hard disk; Windows 98/NT OS. Data acquisition: 2 or 3 channels, 8-bit resolution, 192 samples/second sampling frequency, 240x real-time playback. Connectivity via USB 1.2. Derived 12-lead ST analysis algorithm. Standard clinical workstation form factor.
Indications for Use
Indicated for pediatric to adult patients requiring assessment of cardiac rhythm disturbances, palpitations, arrhythmia risk (including cardiomyopathy and post-MI), antiarrhythmia therapy efficacy, pacemaker function, and myocardial ischemia (Prinzmetal's angina). EASI derived 12-lead ST measurements indicated for patients aged 33-82, height 147-185 cm, weight 53-118 kg, and specific height-to-weight ratios.
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.
{0}------------------------------------------------
KOO3763
# 7 med
# JAN - 5 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: | 12-5-00 |
| Contact: | G. Lumley - see above |
2010 Plus Holter for Windows Trade Name: Common Name: Holter Analyzer Electrocardiograph, ambulatory, with analysis algorithm Classification Name: (per 21 CFR 870.2800)
Legally marketed device to which S.E. is claimed.
Zymed Holter Scanner Model Holter 2000 - 510(k) K990170 Zymed's EasiView Telemetry System - 510(k) K984089
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 Holter 2000. 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, derived 12 lead ST analysis 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
{1}------------------------------------------------
#### 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 . ASSessment of risk in Patenas With of the of the 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.
- Assessment of EASI derived 12-lead ST measurements is recommended for patients that . meet the following parameters.
- 1. Ages: 33 to 82 years
- 2. Heights: 147 to 185 cm (58 to 73 in)
- 3. Weights: 53 to 118 kg (117 to 261 lb)
- Height to Weight ratios: 1.41 to 2.99 cm/kg ( 0.25 to 0.54 in/lb.) .
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 |
{2}------------------------------------------------
| Hardware and Software<br>Diagnostics | Included | Same |
|----------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------|--------------------------------------|
| Data Acquisition:<br>Number of Channels<br>Resolution<br>Sampling Frequency<br>Playback Speed<br>Digital Input | 2 or 3<br>8 bit<br>192 samples per second<br>240 times real time<br>Yes | Same<br>Same<br>Same<br>Same<br>Same |
The only difference between the two Zymed systems is the extension of ST analysis from 3 channels to the derived 12 lead.
Performance was measured against industry accepted AHA (AHA), MIT (MIT) and European I enormance has mees aresults were typical for the Holter as targeted. Separate sensitivities (SE), positive predictivity (+P), and false positive rate (FPR) were examined for each database (00), positive proched for QRS, Ventricular, Couplets, Short runs and Long runs. Separate Episode and measured for Qres, Venerious, Decalictivity (E+P), Duration Sensitivity (DSE) and Duration Bositive 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 indicates the new system is equivalent 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.
{3}------------------------------------------------
DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Image /page/3/Picture/2 description: The image shows the seal of the Department of Health & Human Services (USA). The seal features the department's name encircling a stylized emblem. The emblem consists of a stylized abstract design, resembling an eagle or a symbol of human services. The text is arranged in a circular pattern around the emblem.
JAN - 5 2001
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Ms. Gretel Lumley Zymed Corp. 1201 "B" N. Rice Ave. Oxnard, CA 93030
K003763 Re: Trade Name: 2010 Plus Holter For Windows Regulatory Class: II (two) Product Code: 74 MLO Dated: December 5, 2000 Received: December 6, 2000
Dear Ms. Lumley:
We have reviewed your Section 510(k) notification of intention market we nave revrenced your boose and we have determined the device is the device fererenced above and a indications for use stated in the substantially equivalence to the redicate devices marketed in encrosure) co regarif maries in the enactment date of the Incelstate Commerce prob or to devices that have been reclassified redical beview imending, with Federal Food, Drug, and In accordance with the provisions of therefore, market the device, which controle the general controls provisions of the Act. The general controls che general ocherozo include requirements for annual registration, provisions of thes, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special II your a viol as III (Premarket Approval), it may be subject to such controls) or Grace - Existing major regulations affecting your device aan be found in the Code of Federal Regulations, Title 21, Parts 800 can be round in the equivalent determination assumes compliance with the Current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic QS ocheral rogarderen od Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this concerning your download notification submission does not affect any response of your have under sections 531 through 542 of the Act
{4}------------------------------------------------
Page 2 - Ms. Gretel Lumley
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 InIs lecter will afrow you co boyin in the FDA finding of substantial In your Stormance to a legally marketed predicate device equivalence of your device of a region and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling II you desire specific advarse additionally 809.10 for in vitro regulation (21 CFR Fare contact the Office of Compliance at draghoser devices), promally, for questions on the promotion and (301) 39 4010. Hautevice, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, (21CFR 807) by reference to premarket notification" (21CFR 807.927) -MISDIanding by reference co-proir responsibilitities under the Acc may Ocher general Information of Small Manufacturers Assistance at its be obtained from the brives.
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,
A Stipt Rhodes
E. Dillard III Director Division of Cardiovascular · and Respiratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
K003763 510(k) Number:
Device Name: Zymed Holter 2000
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 . r woodsteens 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.
- Assessment of EASI derived 12-lead ST measurements is recommended for patients that . meet the following parameters.
- 1. Ages: 33 to 82 years
- 2. Heights: 147 to 185 cm (58 to 73 in)
- 3. Weights: 53 to 118 kg (117 to 261 lb)
- 4. Height to Weight ratios: 1.41 to 2.99 cm/kg ( 0.25 to 0.54 in/lb.)
## (PLEASE DO NOT WRITE BELOW THIS LINE -- CONTINUE ON ANOTHER PAGE (F NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Stup Rhodes
Division of Cardiovascular & Respiratory Devices
510(k) Number K003763
Prescription Use A (CFR21 CFR 801.109) Over-The-Counter Use
or
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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.