K161579 · Itamar Medical , Ltd. · MNR · Feb 24, 2017 · Anesthesiology
Device Facts
Record ID
K161579
Device Name
Watch-PAT200U
Applicant
Itamar Medical , Ltd.
Product Code
MNR · Anesthesiology
Decision Date
Feb 24, 2017
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.2375
Device Class
Class 2
Attributes
Pediatric
AI Performance
Output
Algorithm
Acceptance
Observed
Dev DS
Dev Readers
Test DS
Test Readers
Central Apnea-Hypopnea Index (pAHIc)
—
—
substantially equivalent performance
—
—
Overnight sleep study: 72 subjects
—
Indications for Use
The Watch-PAT200U (WP200U) device is a non-invasive home care device for use with patients suspected to have sleep related breathing disorders. TheWP200U is a diagnostic aid for the detection of sleep related breathing disorders, sleep staging (Rapid Eye Movement (REM) Sleep, Light Sleep, Deep Sleep and Wake), snoring level and body position. The WP200U generates a peripheral arterial tonometry ("PAT") Respiratory Disturbance Index ("PRDI"), Apnea-Hypopnea index ("PAHI"), Central Apnea-Hypopnea index ("PAHIc"), PAT sleep staging identification (PSTAGES) and optional snoring level and body position discrete states from an external integrated snoring and body position sensor. The WP200U's PSTAGES and snoring level and body position provide supplemental information to its PRDI/PAHI/PAHIc. The WP200U's PSTAGES and snoring level and body position are not intended to be used as the sole or primary basis for diagnosing any sleep related breathing disorder, prescribing treatment, or determining whether additional diagnostic assessment is warranted.
Device Story
Watch-PAT200U is a non-invasive home-care diagnostic aid for sleep-related breathing disorders. Inputs: peripheral arterial tonometry (PAT) signal from finger probe, blood oxygen saturation from integrated oximeter, actigraphy from wrist-worn device, and chest movement/snoring/body position from optional RESBP sensor. Device records signals via controller; software processes data to calculate PRDI, PAHI, PAHIc, and sleep stages (REM, light, deep, wake). Healthcare providers review output to assist in diagnosing sleep disorders. Benefits include home-based assessment of sleep breathing and staging without full polysomnography.
Clinical Evidence
Clinical study of 72 subjects evaluated the device's capability to identify central sleep apnea and Cheyne-Stokes Respiration. Study compared device output against manual polysomnographic (PSG) scoring. Results demonstrated substantially equivalent performance.
Technological Characteristics
Ventilatory effort recorder using Peripheral Arterial Tonometry (PAT). Components: unified PAT/pulse oximeter probe, embedded actigraph, optional RESBP sensor (snoring, body position, chest movement), controller, and power supply. Connectivity: standalone recording. Software: algorithm-based analysis for sleep staging and respiratory indices. Electrical safety/EMC per IEC 60601-1, 60601-1-2, and 60601-1-11.
Indications for Use
Indicated for patients suspected of sleep-related breathing disorders. PAHIc parameter indicated for patients 17 years and older; all other parameters indicated for patients 12 years and older.
Regulatory Classification
Identification
A breathing (ventilatory) frequency monitor is a device intended to measure or monitor a patient's respiratory rate. The device may provide an audible or visible alarm when the respiratory rate, averaged over time, is outside operator settable alarm limits. This device does not include the apnea monitor classified in § 868.2377.
Embla Systems' Embletta MPR Sleep Data Recording System (K122516)
Submission Summary (Full Text)
{0}------------------------------------------------
Image /page/0/Picture/1 description: The image shows the seal of the U.S. Department of Health and Human Services. The seal features a stylized eagle with three heads in profile, facing right. The eagle is surrounded by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement. The text is in all capital letters and is evenly spaced around the eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
February 24, 2017
Itamar Medical, Ltd. % Jonathan Kahan Partner Hogan Lovells US LLP 555 13th Street, NW Washington, District of Columbia 20004-1109
Re: K161579
Trade/Device Name: Watch-PAT200U Regulation Number: 21 CFR 868.2375 Regulation Name: Breathing Frequency Monitor Regulatory Class: Class II Product Code: MNR Dated: January 23, 2017 Received: January 23, 2017
Dear Mr. Kahan:
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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
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.
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 devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
{1}------------------------------------------------
the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education 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. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 Industry and Consumer Education 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,
Michael J. Ryan -S
for Tina Kiang, Ph.D. Acting Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control, and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement on last page
510(k) Number (if known)
## K161579
Device Name
### Watch-PAT200U
Indications for Use (Describe)
The Watch-PAT200U (WP200U) device is a non-invasive home care device for use with patients suspected to have sleep related breathing disorders. TheWP200U is a diagnostic aid for the detection of sleep related breathing disorders, sleep staging (Rapid Eye Movement (REM) Sleep, Light Sleep, Deep Sleep and Wake), snoring level and body position. The WP200U generates a peripheral arterial tonometry ("PAT") Respiratory Disturbance Index ("PRDI"), Apnea-Hypopnea index ("PAHI"), Central Apnea-Hypopnea index ("PAHIc"), PAT sleep staging identification (PSTAGES) and optional snoring level and body position discrete states from an external integrated snoring and body position sensor. The WP200U's PSTAGES and snoring level and body position provide supplemental information to its PRDI/PAHI/PAHIc. The WP200U's PSTAGES and snoring level and body position are not intended to be used as the sole or primary basis for diagnosing any sleep related breathing disorder, prescribing treatment, or determining whether additional diagnostic assessment is warranted.
PAHIc is indicated for use in patients 17 years and older. All other parameters are indicated for 12 years and older.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------|--|
| Prescription Use (Part 21 CFR 801 Subpart D) | |
| Over-The-Counter Use (21 CFR 801 Subpart C) | |
# CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW *
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
FORM FDA 3881 (8/14)
{3}------------------------------------------------
- 5.1 Applicant's Name: Itamar Medical Itd. 9 Halamish st. Caesarea 3088900, Israel Tel: +972 4 617 7000 Fax: +972 4 627 5598 5.2 Contact Person: Jonathan Kahn, Esq. Hogan Lovells US LLP Columbia Square 555 Thirteenth Street, NW Washington, DC 20004-1109 Tel: (202)637-5794 Fax: (202)637-5910 Email: jonathan.kahan@hoganlovells.com 5.3 Date Prepared: February 23, 2017
- Watch-PAT 200U ("WP200U") 5.4 Trade Name:
- 5.5 Common or Usual Name: Ventilatory Effort Recorder
- Classification Name: Breathing Frequency Monitor 5.6
- 5.7 Medical Specialty: Anesthesiology
- 5.8 Product Code: Ventilatory Effort Recorder, MNR
- 5.9 Device Class: Class II
- 5.10 Regulation Number: 868.2375
- 5.11 Panel: Anesthesiology
### 5.12 Predicate Devices:
- Primary Predicate Device: Watch-PAT200U ("WP200U") (Itamar Ltd), cleared under K133859: product code MNR (ventilatory effort recorder)
- Additional Predicate Device: Embla Systems' Embletta MPR Sleep Data Recording System ● (K122516)
### 5.13 Intended Use / Indication for Use:
The Watch-PAT200U (WP200U) device is a non-invasive home care device for use with patients suspected to have sleep related breathing disorders. TheWP200U is a diagnostic aid for the detection of sleep related breathing disorders, sleep staging (Rapid Eye Movement (REM) Sleep, Light Sleep, Deep Sleep and Wake), snoring level and body position. The WP200U generates a peripheral arterial tonometry ("PAT") Respiratory Disturbance Index ("PRDI"), Apnea-Hypopnea index ("PAHI"), Central Apnea-Hypopnea index ("PAHIc"), PAT sleep staging identification (PSTAGES) and optional snoring level and body position discrete states from an external integrated snoring and body position sensor. The WP200U's PSTAGES and snoring level and body position
{4}------------------------------------------------
provide supplemental information to its PRD/PAHI/PAHIc. The WP200U's PSTAGES and snoring level and body position are not intended to be used as the sole or primary basis for diagnosing any sleep related breathing disorder, prescribing treatment, or determining whether additional diagnostic assessment is warranted.
PAHIc is indicated for use in patients 17 years and older. All other parameters are indicated for 12 years and older.
## 5.14 Device Description:
The Watch-PAT200U System (WP200U) is a non-invasive home care device for use with patients suspected to have sleep related breathing disorders. The WP200U is a diagnostic aid for the detection of sleep related breathing disorders [Respiratory disturbance index (RDI), apnea hypopnea index (AHI)] and sleep staging (Rapid Eye Movement (REM), Light Sleep, Deep Sleep and Wake) based on Peripheral Arterial Tonometry (PAT), a non-invasive technology. According to the physician discretion, the WP200U may be connected to an external integrated snoring and body position (SBP) sensor.
The WP200U device consists of the following: (1) a unified PAT and pulse oximeter probe which is used to detect the PAT signal and to measure blood oxygen saturation; (2) an embedded actigraph, which is used to determine periods of sleep based on the wrist: (3) external integrated snoring and body position sensor – SBP/RESBP (optional); (4) electronics, which include a controller that records the signals provided by the PAT finger probe, oximeter, actigraph and SBP/RESBP; (5) the device software; and (6) a power supply.
The subject WP200U introduces the RESBP sensor - an additional Snoring and Body Position (SBP) integrated sensor which also includes chest movement signal.
Another change in the subject WP200U is the introduction of new sleep disorder parameter - central apnea/hypopnea index (pAHIc).
### 5.15 Substantial Equivalence:
### Intended Use
The intended use of the subject Watch-PAT200U ("WP200U") is similar to the intended use of its predicate, the Watch-PAT200U (Itamar Ltd). The only difference is that the subject device provides new sleep disorder parameter - central apnea/hypopnea index (pAHIc). All other information supplied, are exactly the same as the predicate device. The additional information in the subject device does not alter the intended diagnostic use of the WP200U.
For the added capability of identification of central ApnealHypopnea events, the company selects additional predicate device - Embla Systems' Embletta MPR Sleep Data Recording System (K122516) intended to assist in the identification of sleep-related medical disorders, including Central Sleep Apnea Syndrome.
### Comparison of Technological Characteristics
The technological characteristics and principles of operation of the subject device are identical to the predicate device. The subject WP200U, like its predicate, is a ventilatory effort recorder that utilizes PAT technology. Specifically, the hardware and the subject device are similar to that of the primary predicate device, except the following modifications:
{5}------------------------------------------------
- 1. RESBP sensor an additional Snoring and Body Position (SBP) integrated sensor which also includes chest movement signal.
- 2. The algorithms of the primary predicate are further developed in the subject device to provide the information regarding central Apnea/Hypopnea events.
Please note that the pAHIc is presented only when the patient uses the RESBP sensor in the sleep study.
The subject device also has similar technological characteristics to the additional predicate Embletta. Although the subject device uses PAT signal to measure physiological parameters, this difference does not raise different types of safety and effectiveness questions. Specifically, the agency has cleared PAT signal in the primary predicate device.
The subject WP200U principle of operation is identical to the cleared WP200U principles of operation.
### Performance Testing
Since there were no modifications to the WP200U predicate device K133859, consensus standards conducted on the predicate device is applicable to the subject device. The following consensus standards were used to evaluate the predicate device:
- . Electrical safety and Electromagnetic compatibility testing per IEC 60601-1:2005 +01:2006 +C2:2007 +AM1:2012, IEC 60601-1-2:2014, and 60601-1-11:2015
- . Software verification and validation
- . Bench testing to show that the snore intensity in decibels and body position discrete states measured by the new respiratory effort snore and body position (RESBP) sensor is the same as that measured by the cleared snore and body position (SBP) sensor.
- . Clinical study was conducted to evaluate the WP200U's capability to identify central sleep apnea and Cheyne-Stokes Respiration. 72 subjects were evaluated in an overnight sleep study using the subject device and polysomnographic (PSG) manual scoring. Test results demonstrated substantially equivalent performance.
All these tests demonstrate that the WP200U is substantially equivalent to its predicate without raising any different issues of safety or effectiveness.
### Summary
Based on the performance testing results, including the electromagnetic testing, clinical study, software verification and validation process and bench test, Itamar Ltd, believes that the WP200U System is substantially equivalent to its predicates.
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.