The device is indicated for use by the Health Care Professional (HCP), where it may aid in the diagnosis and assessment of sleep disordered breathing for adult patients. MATRx plus records the following data: patient respiratory nasal airflow, snoring, blood oxygen saturation, pulse, respiratory effort and body position during sleep. The device uses these recordings to produce a report for the HCP that may aid in the diagnosis of sleep disordered breathing. The device is intended for home and hospital use under the direction of a HCP.
Device Story
MATRx plus is a 5-channel battery-powered ventilatory effort recorder for home/hospital use. Inputs: nasal airflow (dual lumen cannula), snoring, blood oxygen saturation, pulse (finger oximeter), respiratory effort (inductance belt), and body position (3D accelerometer). Device worn on abdomen; sensors connect to recorder. Recorder wirelessly transmits data via Bluetooth to a bedside tablet; tablet guides user through setup and study conduct. Post-study, data automatically uploads to a secure portal for HCP access. HCP uses Data Viewer to generate reports on respiratory pressure, effort, pulse, and oxygen saturation to aid diagnosis. Benefits include remote data collection and automated study quality feedback to patients.
Clinical Evidence
Bench testing only. Performance characteristics for oximeter and sensor inputs compared to predicate. Autoscoring algorithm for Oxygen Desaturation Index (ODI) validated against Snore SAT monitor (K002159) using data from 179 patients. Electrical safety (IEC 60601-1), EMC (IEC 60601-1-2), and environmental testing (IEC 60601-1-11) performed.
Technological Characteristics
Battery-powered recorder (Li-Ion, 3.7V) with ARM Cortex M4 processor. Sensors: dual-lumen nasal cannula, finger oximeter, inductance effort belt. Connectivity: Bluetooth to tablet, web portal upload. Materials: ABS housing, TPE grip, polyester film keypad. Software lifecycle per IEC 62304. Safety tested to IEC 60601-1, 60601-1-11, 60601-1-2, and 62133.
Indications for Use
Indicated for adult patients (18+ years) to aid in the diagnosis and assessment of sleep disordered breathing. Contraindicated for use as an apnea monitor, in life-supporting/sustaining situations, or for patients under 18.
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.
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Image /page/0/Picture/1 description: The image is a black and white logo for the Department of Health & Human Services - USA. The logo features a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" written around it. Inside the circle is an emblem depicting three stylized human profiles facing to the right, with flowing lines suggesting movement or connection.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
May 5, 2017
Zephyr Sleep Technologies Sabina Bruehlmann Director, Technology 610A 70 Ave SE Calgary, Alberta T2H-2J6 Canada
Re: K163665
Trade/Device Name: Matrx Plus Regulation Number: 21 CFR 868.2375 Regulation Name: Breathing Frequency Monitor Regulatory Class: Class II Product Code: MNR Dated: April 5, 2017 Received: April 6, 2017
Dear Sabina Bruehlmann:
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.
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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 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.
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,
Tina
Kiang-S
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
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# Indications for Use
510(k) Number (if known) K163665
Device Name MATRx plus
Indications for Use (Describe)
The device is indicated for use by the Health Care Professional (HCP), where it may aid in the diagnosis and assessnt of sleep disordered breathing for adult patients.
MATRx plus records the following data: patient respiratory nasal airflow, snoring, blood oxygen saturation, pulse, respiratory effort and body position during sleep.
The device uses these recordings to produce a report for the HCP that may aid in the diagnosis of sleep disordered breathing. The device is intended for home and hospital use under the direction of a HCP.
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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Image /page/3/Picture/0 description: The image shows the logo for Zephyr Sleep Technologies. The logo features the word "ZEPHYR" in large, bold, teal letters, with the words "Sleep Technologies" in a smaller font underneath. To the right of the word "ZEPHYR" is a crescent moon shape with a star above it. The address "Unit A, 610-70th Avenue S.E. Calgary, AB, T2H 2J6, Canada" is printed below the logo.
# 510k Summarv - MATRx plus
| Manufacturer Name: | Zephyr Sleep Technologies Inc. |
|------------------------------|-------------------------------------------------------|
| Contact Name: | Sabina Bruehlmann, PhD |
| Postal Address: | 610A, 70 Ave SE<br>Calgary, Alberta T2H-2J6<br>Canada |
| Phone Number: | 587-332-0285 |
| Title: | Director, Technology |
| Date: | May 2, 2017 |
| Device Proprietary Name: | MATRx plus |
| Device Common or Usual Name: | Ventilatory Effort Recorder |
| Classification Name: | Breathing Frequency Monitor |
| Classification Code: | Class II |
| Product Codes: | MNR (Ventilatory Effort Recorder) |
| Regulation Number: | MNR 21 CFR 868.2375 |
#### Predicate Devices:
The MATRx plus is a ventilatory effort recorder. Substantial equivalence is claimed to the Apnealink Air (K143272).
The Snore SAT Recorder (K002159), Nox T3 (K082113), and Masimo SET Rad-8 pulse oximeter (K053269) and Compumedics Somte System (K021176) are used as reference devices.
### Device Description:
The MATRx plus is a new ventilatory effort recorder device. The MATRx plus recorder is a 5-channel battery-powered respiratory pressure sensor and oximetry system. MATRx plus provides recordings of respiratory pressure, respiratory effort, pulse rate, oxygen saturation, snoring and body position during sleep. The physician prescribed device is worn on the patient's abdomen attached to a reusable effort belt and all relevant respiratory information during sleep is collected via nasal cannula, pulse oximetry
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Image /page/4/Picture/0 description: The image shows the logo for Zephyr Sleep Technologies. The logo features the word "ZEPHYR" in large, bold, teal letters, with the words "Sleep Technologies" in a smaller font underneath. To the right of the text is a stylized image of a crescent moon with a star. Below the logo is the address "Unit A, 610-70th Avenue S.E. Calgary, AB, T2H 2J6, Canada".
module and respiratory effort sensor. The disposable plastic nasal cannula is connected to the MATRx plus recorder and fixed at the patient's nose. The cannula is dual lumen and functions to individually sample the pressure from each naris. The oximetry sensor is fixed at the patient's finger and connects directly to the device. The Recorder receives input from the sensors and wirelessly transmits the data to a bedside Tablet during the study.
The Tablet is set up through a connection to the web portal by the Health Care Professional (HCP) prior to deploying the device to the patient for use in the home. The Tablet runs the MATRx plus application according to the selected study type, records and stores the data. The MATRx plus application on the Tablet is also used to guide the user through the set up and conduct of the study through a stepwise user interface. At the end of a recording the Tablet advises the patient if sufficient data for analysis were recorded during the night.
After recording, the MATRx plus must be returned to the HCP. The data are automatically uploaded to the secure Portal where they can be accessed and downloaded to the Data Viewer. The Data Viewer can generate a report with the recorded and analyzed data (respiratory pressure, respiratory effort, pulse rate, ox ygen saturation) to aid in diagnosis.
| Subject Device<br>Components | Material | Use type |
|------------------------------|----------------------------------------------------------------------------------------------|------------------|
| Nasal Cannula | Polyvinyl Chloride (PVC) | Single patient |
| Oximeter Sensor | 3rd party accessory (K051212, K090662, K101896) provided in finished form | Multiple patient |
| Recorder | Housing: ABS<br>Soft grip edge: Thermoplastic Elastomer<br>Key pad: Autotex (polyester film) | Multiple patient |
| Recorder Body Strap | Nylon | Multiple patient |
| Effort Belt | 3rd party accessory (K042253) provided in finished form | Multiple patient |
### Indications for Use:
The device is indicated for use by the Health Care Professional (HCP), where it may aid in the diagnosis and assessment of sleep disordered breathing for adult patients.
MATRx plus records the following data: patient respiratory nasal airflow. snoring, blood oxygen saturation, pulse, respiratory effort and body position during sleep.
The device uses these recordings to produce a report for the HCP that may aid in the diagnosis of sleep disordered breathing. The device is intended for home and hospital use under the direction of a HCP.
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Image /page/5/Picture/0 description: The image displays the logo for Zephyr Sleep Technologies. The logo features the word "ZEPHYR" in a large, teal, sans-serif font, with the words "Sleep Technologies" in a smaller font to the right. Above and to the right of the word "ZEPHYR" is a graphic of a crescent moon with a star. Below the logo is the address "Unit A, 610-70th Avenue S.E. Calgary, AB, T2H 2J6, Canada".
### Contraindications:
- This device is not to be used as an apnea monitor or in a life supporting or life sustaining situation.
- This device is not to be used by persons under the age of 18. ●
- The MATRx plus is MR Unsafe. .
# Patient Population:
The device is intended to be used on adult patients, upon referral from their healthcare provider.
### Technological Characteristics:
The MATRx plus is substantially equivalent to the ApneaLink Air [510(k) # K143272, Summary Exhibit 12-01], manufactured by Resmed Germany Inc. The following tables provide a detailed comparison of the MATRx plus technological characteristics in comparison of the intended use for the predicate.
| Trade Name | APNEALINK AIR | MATRX plus |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510k<br>Number | K143272 | K163665 |
| Manufacturer | Resmed Germany Inc. | Zephyr Sleep Technologies, Inc. |
| Intended Use | The ApneaLink™ Air device is<br>indicated for use by Health Care<br>Professionals (HCP), where it may<br>aid in the diagnosis of sleep<br>disordered breathing for adult<br>patients.<br><br>ApneaLink Air records the following<br>data: patient respiratory nasal<br>airflow, snoring, blood oxygen<br>saturation, pulse, respiratory effort<br>and body position during sleep.<br><br>The device uses these recordings to<br>produce a report for the HCP that<br>may aid in the diagnosis of sleep<br>disordered breathing or for further<br>clinical investigation. The device is<br>intended for home and hospital use<br>under the direction of a HCP. | The MATRx plus™ is indicated for<br>use by the Health Care Professional<br>(HCP), where it may aid in the<br>diagnosis and assessment of sleep<br>disordered breathing for adult<br>patients.<br><br>MATRx plus records the following<br>data: patient respiratory nasal<br>airflow, snoring, blood oxygen<br>saturation, pulse, respiratory effort<br>and body position during sleep.<br><br>The device uses these recordings to<br>produce a report for the HCP that<br>may aid in the diagnosis of sleep<br>disordered breathing. The device is<br>intended for home and hospital use<br>under the direction of a HCP. |
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Image /page/6/Picture/0 description: The image shows the logo for Zephyr Sleep Technologies. The logo features the word "ZEPHYR" in a large, bold, teal font, with the words "Sleep Technologies" in a smaller font underneath. To the right of the text is a graphic of curved lines with a star above them. Below the logo is the address "Unit A, 610 - 70th Avenue S.E. Calgary, AB, T2H 2J6, Canada".
K163665
| Trade Name | APNEALINK AIR | MATRX plus | | |
|-------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|
| 510k<br>Number | K143272 | K163665 | | |
| Manufacturer | Resmed Germany Inc. | Zephyr Sleep Technologies, Inc. | | |
| Environment<br>of Use | Deployed from Clinics, Hospitals<br>Used unsupervised in the Home or<br>Clinic<br>Analyzed from physician's office | Deployed from Clinics, Hospitals<br>Used unsupervised in the Home or<br>Clinic<br>Analyzed from physician's office | | |
| Outcome | Data to aid in the diagnosis of<br>sleep disordered breathing | Data to aid in the diagnosis of<br>sleep disordered breathing | | |
| Contra-<br>indications | The ApneaLink<br>Air system must not be used in the<br>vicinity of an MRI device. | The MATRx<br>plus system must not be used in the<br>vicinity of an MRI device.<br>This device is not to be used as an<br>apnea monitor or in a life supporting<br>or life sustaining situation. | | |
| Proprietary Name | APNEALINK AIR | MATRx plus | Comments | |
| 510k Number | K143272 | K163665 | | |
| Manufacturer | Resmed Germany Inc. | Zephyr Sleep Technologies, Inc. | Predicate vs MATRx plus | |
| | | | | |
| Sensors | | | | |
| Finger Pulse<br>Oximeter | Third party oximeter sensor (Nonin Xpod<br>3012 LP) attaches to patient worn<br>recorder, measure degree of oxygen<br>saturation of the blood and pulse rate.<br>Sampling frequency of 1 Hz | Third party oximeter sensor (Masimo<br>SET 2040) attaches to patient worn<br>recorder, measure degree of oxygen<br>saturation of the blood and pulse rate.<br>Sampling frequency of 1 Hz | Substantially Equivalent | |
| Airflow | Single channel nasal cannula attaches to<br>patient worn recorder; records pressure<br>and translates to airflow and snoring.<br>Sampling frequency of 100 Hz | Dual channel nasal cannula attaches to<br>patient worn recorder; records pressure<br>and translates to airflow and snoring.<br>Sampling frequency of 350 Hz. | Substantially Equivalent -<br>Sampling airflow separately from each<br>naris can reduce artefact with temporary<br>blockages. | |
| Respiratory Effort | Respiratory effort channel to measure the<br>respiratory effort using a pneumatic<br>principle.<br>Sampling frequency of 10 Hz. | Respiratory effort channel to measure<br>the respiratory effort using an<br>inductance principle.<br>Third-party belt (Sleep Sense,<br>K042253)<br>Sampling frequency of 25 Hz. | Substantially Equivalent -<br>Both are commonly used and are<br>sufficiently sensitive to detect breathing<br>effort | |
| Position | Channel to determine body position of<br>the patient during sleep by 3D axis<br>accelerometer | Channel to determine body position of<br>the patient during sleep by 3D axis<br>accelerometer | Substantially Equivalent - | |
| Snoring | Nasal airflow fluctuation envelope signal<br>(between 10 and 60 Hz).<br>User adjustable threshold. | Nasal airflow fluctuation envelope<br>signal (between 10 and 70 Hz).<br>Set threshold. | Substantially Equivalent - | |
| Other channels | none | none | Equivalent | |
| Method of<br>connection to the<br>patient | Plastic tubing and cannula for pressure sensing; belts for respiratory effort; probes or<br>Flexi Wrap for oximetry; touch proof electrode cables; belts for attaching of device<br>and clip straps to secure position of device.<br>The device is worn on the patient's chest. | | Equivalent | |
| Proprietary Name | APNEALINK AIR | MATRx plus | Comments | |
| 510k Number | K143272 | K163665 | Predicate vs MATRx plus | |
| Manufacturer | Resmed Germany Inc. | Zephyr Sleep Technologies, Inc. | | |
| Device Design | | | | |
| Sensor Connection | Sensors (airflow, oximeter, effort belt) are attached to a body worn recorder unit. | | Equivalent | |
| Recorder<br>Dimensions | Recorder: 2.4" x 4" x 1.2"<br>Oximeter: 2.1" x 0.8" x 0.6" | Recorder: 2.48" x 3.11" x 0.83"<br>Oximeter: 1.9"x 0.6"x 1.3" | Substantially Equivalent<br>Same as reference device (K021176)<br>which measures 2.5"x4.5"x1.2" | |
| Recorder Weight | 66 g | 230 g | Substantially Equivalent<br>Same as reference device (K021176)<br>which is body worn and weighs 234g | |
| Data collection | All sensors connect direct to recorder.<br>Study data is stored on the Recorder until<br>study conclusion and then uploaded via<br>USB cable upon return of the unit. | All sensors connect direct to recorder.<br>Study data is wirelessly transferred<br>(Bluetooth)<br>from recorder to tablet and stored on the<br>tablet until study conclusion. Data is<br>wirelessly collected via device to web<br>portal at the end of the study. | Substantially Equivalent –<br>If desired, the MATRx plus user can<br>have reviewed the data prior to the<br>return of the device and contact the<br>patient if the study was not successfully<br>completed.<br>Bluetooth connectivity substantially<br>equivalent to Nox T3 (K082113). | |
| Processor | The microprocessor system (ARM Cortex<br>M3 based LPC1853) processes the<br>recorder patient's data (1MB) | Recorder microprocessor system (ARM<br>Cortex M4 based, STM32 F4, 168<br>MHz) processes the patient's data<br>(1MB).<br>Tablet minimum requirements: 1.33<br>GHz processor, 1 GB RAM. | Substantially Equivalent –<br>The MATRx plus includes a Tablet to<br>store the data and guide user<br>interactions. | |
| Indicators | Via LED:<br>Test Complete<br>Respiratory Flow | Via Tablet User interface:<br>Test Started<br>Test Paused | Substantially Equivalent – | |
| Proprietary Name | APNEALINK AIR | MATRx plus | Comments<br>Predicate vs MATRx plus | |
| 510k Number | K143272 | K163665 | | |
| Manufacturer | Resmed Germany Inc.<br>Oximetry Connection<br>Effort Sensor Connection | Zephyr Sleep Technologies, Inc.<br>Test Complete<br>Respiratory Flow<br>Oximetry Connection<br>Effort Sensor Connection<br>Battery Charge | Additional feedback provided to the<br>MATRx plus user to help facilitate the<br>test. | |
| Recording Time | 4 x 12 hours | 6 x 8 hours | The total number of study hours in the<br>MATRx plus is set by the software. | |
| Internal memory | 48 hours | 48 hours | Internal memory is > 100hours. | |
| Battery Cover | User accessible | Tamper-proof and locked | MATRx plus battery is recharged and is<br>not replaceable by the user. | |
| Study Set up and Management | | | | |
| Patient Set up | Set up on device software and transferred<br>to Device via USB | Set up on device software and<br>transferred to Device via internet | Substantially Equivalent -<br>Removal of USB port to increase<br>cybersecurity features of the device. | |
| Data Storage and<br>Access | Data is stored and accessible via local<br>database. Copies are downloaded locally<br>for analysis. | Data is stored and accessible via<br>database. Database is located on<br>manufacturer's secure internet<br>accessible server. Copies are<br>downloaded locally for analysis. | Substantially Equivalent - | |
| Design - Data Viewer (PC Application) | | | | |
| Data Display | Real time waveforms displayed for all channels; Autoscored oxygen<br>desaturation events are temporally displayed in relation to the airflow,<br>oxygen, pulse rate and other signals. Summary data is calculated. | | Equivalent | |
| Data Reporting | Data related to patient respiratory nasal airflow, snoring, blood oxygen saturation,<br>pulse, respiratory effort and body position can be analyzed/displayed by Software<br>and a report can be generated automatically. | | Equivalent - | |
| Proprietary Name | APNEALINK AIR | MATRx plus | Comments<br>Predicate vs MATRx plus | |
| 510k Number | K143272 | K163665 | Predicate vs MATRx plus | |
| Manufacturer | Resmed Germany Inc. | Zephyr Sleep Technologies, Inc. | | |
| Data Analysis | The following indices are<br>generated from the ApneaLink Software:<br>AHI, RI, Apnea Index (unclassified,<br>central, mixed, obstructive),<br>Hypopnea Index, Number of flow limited<br>breaths without snoring,<br>Number of flow limited breaths with<br>snoring, Cheyne-Stokes Breathing,<br>ODI, Average saturation, Minimum<br>saturation, Maximum saturation,<br>Basal saturation, Minimum Pulse Rate,<br>Maximum Pulse Rate, Average<br>Pulse Rate | The following indices are<br>generated from the MATRx plus<br>Software:<br>ODI, Average Saturation, minimum<br>saturation, maximum saturation, min<br>pulse rate, max pulse rate, average pulse<br>rate. | Substantially Equivalent –<br>The MATRx plus does not calculate or<br>report: AHI, RI, Apnea Index<br>(unclassified, central, mixed, obstructive),<br>Hypopnea Index, Number of flow limited<br>breaths without snoring, Number of flow<br>limited breaths with snoring, Cheyne-<br>Stokes Breathing.<br>The raw data necessary for manual<br>calculation of these parameters and to<br>review ODI, saturation, and pulse rate<br>are available for display. | |
| Components in<br>Patient contact | Recorder and Sensors (Nasal cannula,<br>finger oximeter, effort belt) | Recorder and Sensors (Nasal cannula,<br>finger oximeter, effort belt) | Substantially Equivalent – | |
| Biocompatibility | Cleared under K131932 | All body contacting components<br>previously cleared | Substantially Equivalent – | |
| Reprocessing | Patient contacting and indirectly<br>contacting components are reprocessed | Patient contacting and indirectly<br>contacting components are reprocessed | Substantially Equivalent – | |
| Safety Testing | Tested to IEC 60601-1-11: 2010; Tested to IEC 60601-1-2:2007; Tested to IEC<br>60601-1:2005 | | Equivalent | |
| Patient isolation | Device has no galvanic connections to mains as it is a battery-operated device. Not<br>possible to connect auxiliary devices to the device |…
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.