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. 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.). QT measurements can be used by the physician in risk assessment process indicated for patients with and without symptoms of arrhythmia. QT measurement is intended to be used by competent health professionals in hospital or clinic environment. Composite QT measures the interval only and is not intended to produce any interpretation or diagnosis of those measurements.
Device Story
2010 Plus Holter for Windows analyzes pre-recorded cardiac ECG data from cassette or digital storage. System processes individual waveforms and consecutive patterns to generate clinical reports; features include multi-channel automatic ST analysis, frequency domain Heart Rate Variability, morphology analysis, and QT analysis. Used in hospital or clinic environments by trained medical personnel to diagnose cardiac rhythm patterns, assess pacemaker function, and evaluate antiarrhythmia therapy. Output consists of ECG printouts and diagnostic reports, assisting physicians in clinical decision-making regarding patient cardiac performance and risk assessment.
Clinical Evidence
Bench testing only. Performance validated against industry-standard AHA, MIT, and European ST-T databases. Metrics included sensitivity, false positive rates, and positive predictivity for arrhythmia, ST analysis, and duration measurements. Performance demonstrated to be consistent with predicate system, including high heart rate handling (up to 300 bpm) and noise robustness.
Technological Characteristics
PC-based system (IBM PC AT compatible, Pentium II 400 MHz, 128MB RAM). Data acquisition: 2 or 3 channels, 8-bit resolution, 192 samples/second, 240x real-time playback. Connectivity via USB. Software runs on Windows 98/NT. Includes automated analysis algorithms for ST, QT, morphology, and heart rate variability.
Indications for Use
Indicated for pediatric to adult patients for assessment of cardiac rhythm disturbances, palpitations, arrhythmia risk (including idiopathic hypertrophic cardiomyopathy and post-MI left ventricular dysfunction), antiarrhythmia therapy efficacy, pacemaker function, and myocardial ischemia (Prinzmetal's angina). EASI 12-lead ST measurements indicated for specific adult anthropometric ranges (ages 33-82, heights 147-185cm, weights 53-118kg).
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.
Marquette Medical System's QT Guard Analysis System (K981024)
Submission Summary (Full Text)
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#### SEP 2 8 2001 KO10949
Agilent Technologies, Inc. 1201-B N. Rice Avenue Oxnard, California 93030 800 235 5941 telephone 805 988 7000 telephone 805 604 0493 facsimile
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Image /page/0/Picture/4 description: The image shows a symmetrical, star-like design composed of dots. There is a central ring of eight larger dots, and radiating outward from each of these dots are three smaller dots, forming eight arms. The overall impression is that of a stylized snowflake or starburst pattern.
## Agilent Technologies
Innovating the HP Way
#### 510(k) Summary
Submitter:
| Gretel Lumley, Quality Assurance Engineer |
|-------------------------------------------|
| Agilent Technologies |
| 1201 B North Rice Avenue |
| Fax: 805-604-0493 |
| Phone: 800-235-5941 (7417) |
| Date of Summary: 6-29-01 |
| Contact: G. Lumley - see above |
2010 Plus Holter for Windows Trade Name: Holter Analyzer Common Name: 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 Marquette Medical System's QT Guard Analysis System - 510(k) 981024
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, QT 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.
- 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.)
- QT measurements can be used by the physician in risk assessment process indicated for . patients with and without symptoms of arrhythmia. OT measurement is intended to be used by competent health professionals in hospital or clinic environment. Composite QT measures the interval only and is not intended to produce any interpretation or diagnosis of those measurements.
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 |
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# K010949
| Mouse<br>USB | Yes<br>USB 1.2 or greater | Same<br>Same |
|----------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------|--------------------------------------|
| Software:<br>Operating System<br>Hardware and Software<br>Diagnostics | Windows 98, Windows NT<br>Included | Same<br>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 addition of QT Analysis to the 2010 Plus for Windows System.
Overall Holter performance was measured against industry accepted AHA (AHA), MIT (MIT) Overan Hotel performance was mesults were typical for the Holter as targeted. Separate and Edropean ST-1 (251) databases: Tresults (+P), and false positive rate (FPR) were examined for each softshivities (197, post: 10 products, Short runs and Long runs and Long runs. Separate database and modistivities (ESE), Follars 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 mediator of 31 milling in excess of 300 bpm, and performance in the presence of noise whilin recommended gardent 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 is a black and white logo for the U.S. Department of Health and Human Services. The logo features a stylized depiction of three human profiles facing to the right. The profiles are arranged in a way that they appear to be interconnected. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the central image.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
SEP 2 8 2001
Ms. Gretel Lumley Quality Assurance Engineer Agilent Technologies, Inc. 1201-B North Rice Avenue Oxnard, CA 93030
Re: K010949
Trade Name: 2010 Plus Holter for Windows Regulation Number: 21 CFR 870.2800 Regulation Name: Medical Magnetic Tape Recorder Regulatory Class: Class II (two) Product Code: MLO Dated: June 29, 2001 Received: July 2, 2001
Dear Ms. Lumley:
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, listing 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 such 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 - Ms. Gretel Lumley
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); good manufacturing practice requirements as set Orth 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.
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally presticated 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 21 CFR Part 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4646. 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 Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer 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,
V. Decker Tell III
James E. Dillard III Director Division of Cardiovascular and Respiratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### K010949 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 . i woosiment of not in it is it is no a 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.
- Ages: 33 to 82 years 1.
- Heights: 147 to 185 cm (58 to 73 in) 2.
- Weights: 53 to 118 kg (117 to 261 lb) 3.
- Height to Weight ratios: 1.41 to 2.99 cm/kg ( 0.25 to 0.54 in/Ib.) 4.
- QT measurements can be used by the plysician in risk assessment process indicated for patients with . and without symptoms of arrhythmia. QT measurement is intended to be used by competent health professionals in hospital or clinic environment. Composite QT measures the interval only and is not intended to produce any interpretation or diagnosis of those measurements.
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Division of Cardiovascular & Respiratory Devices
510(k) Number K010949
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.