K192340 · Opsens, Inc. · DXO · Dec 12, 2019 · Cardiovascular
Device Facts
Record ID
K192340
Device Name
OptoMonitor
Applicant
Opsens, Inc.
Product Code
DXO · Cardiovascular
Decision Date
Dec 12, 2019
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.2870
Device Class
Class 2
Indications for Use
To measure pressure in blood vessels including both coronary and peripheral vessels, during diagnostic angiography and/or any interventional procedures. Blood pressure measurements provide hemodynamic information, such as fractional flow reserve, for the diagnosis and treatment of blood vessel disease.
Device Story
OptoMonitor is a pressure monitoring system for coronary and peripheral vessels. It processes pressure signals from fiberoptic sensors in compatible catheters. The system includes a Signal Conditioner Unit, Display Unit, and Handle Unit. The device provides real-time pressure curves and calculates hemodynamic indices, including Fractional Flow Reserve (FFR) and the new Diastolic Pressure Ratio (dPR). dPR is a resting index calculated as the ratio of distal pressure (Pd) to aortic pressure (Pa) during the diastolic portion of the heartbeat cycle. Used in clinical settings (e.g., cath lab) by physicians to assess stenosis severity without requiring hyperemic agents. Output is displayed on the unit for clinical decision-making regarding revascularization. Benefits include reduced patient risk by avoiding hyperemic drugs.
Clinical Evidence
No clinical investigations were conducted for this submission. Equivalence was established via bench testing and comparative analysis of dPR performance against the reference standard (iFR) using data from the CONTRAST and VERIFY 2 studies. Reported dPR accuracy, sensitivity, and specificity were 97.1%, 95.9%, and 98.4% respectively, with a cut-off of 0.89.
Technological Characteristics
System components: Signal Conditioner Unit, Display Unit, Handle Unit, and fiberoptic pressure guidewires. Sensing principle: Fiberoptic pressure transducer. Connectivity: Standalone monitor. Software: Embedded, moderate level of concern. Operating pressure: 70-106 kPa. Pressure range: -30 to 300 mmHg. Electrical isolation: Class 1.
Indications for Use
Indicated for patients undergoing diagnostic angiography or interventional procedures requiring hemodynamic assessment of coronary or peripheral blood vessels.
Regulatory Classification
Identification
A catheter tip pressure transducer is a device incorporated into the distal end of a catheter. When placed in the bloodstream, its mechanical or electrical properties change in relation to changes in blood pressure. These changes are transmitted to accessory equipment for processing.
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December 12, 2019
Opsens Inc % Chris Henza Regulatory Consultant Ultra LifeScience Inc. 872 S. Milwaukee Avenue #286 Libertyville, Illinois 60048
Re: K192340
Trade/Device Name: OptoMonitor Regulation Number: 21 CFR 870.2870 Regulation Name: Catheter Tip Pressure Transducer Regulatory Class: Class II Product Code: DXO Dated: November 8, 2019 Received: November 12, 2019
Dear Chris Henza:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
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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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Stephen Browning Assistant Director Division of Cardiac Electrophysiology, Diagnostics and Monitoring Devices Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known)
K192340
Device Name OptoMonitor
Indications for Use (Describe)
To measure pressure in bood vessels including both coronary and peripheral vessels, during diagnostic angiography and or any interventional procedures.
Blood pressure measurements provide hemodynamic information, such as fractional flow reserve, for the diagnosis and treatment of blood vessels.
| 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)
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# 5 510(k) Summary
#### SUBMITTER 5.1
Address: Opsens, Inc.
750, Boulevard du Parc Technologique
Quebec (Quebec) G1P 4S3
Phone: 418-781-0333
Fax Number: 418-781-0024
Contact Person: Marc Chaunet, Director of Requlatory Affairs, Opsens Inc.
Email: marc.chaunet@opsens.com
Date Prepared: Auqust 23, 2019
## 5.2 DEVICE
Name of Device: OptoMonitor
Common or Usual Name: Pressure Monitor
Classification name: Transducer, pressure, catheter tip (870.2870)
Regulatory Class: II
Product Code: DXO
#### 5.3 PREDICATE DEVICE
OptoMonitor System cleared via K142598 (cleared on 06/12/2015).
#### REFERENCE DEVICE 5.4
The dPR index calculation algorithm software upgrade subject to this submission is substantially equivalent to the reference device, Volcano iFR Modality cleared under K173860, cleared on 04/11/2018 for similar intended use.
#### DEVICE DESCRIPTION 5.5
The proposed OptoMonitor is a software upgrade that includes software modifications allowing for the calculation of dPR index, and revised labeling relevant to this change. This device and its components are considered accessories to catheter pressure transducers and are intended for use with leqally marketed catheters.
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## Software Description
The OptoMonitor with the new dPR calculation is an upgraded version of the software embedded in the previously cleared OptoMonitor's Display Unit. The OptoMonitor comprises the exact same hardware as cleared version with most of the software remaining unchanged, except for the display unit software which in addition to the current calculation of Fractional Flow Reserve (FFR), the upgraded version will also calculate the diastolic pressure ratio (dPR).
dPR is a resting index which consists in calculating the ratio of Pd and Pa over the diastolic portion of the heart beat cycle. dPR is a resting index for the diagnostic of the severity of stenosis equivalent to iFR (instantaneous wave-Free Ratio). IFR calculates the ratio of Pd and Pa over 75% of the diastolic portion.
The accuracy, specificity and sensitivity of dPR compared to iFR as a reference standard', using the same cut-off value of 0.89 and calculated from both CONTRAST² and VERIFY 22 studies, are 97.1% [95.7%, 98.1% @95%C11, 95.9% [93.6%, 97.5% @95%C1] and 98.4 [96.6%, 99.3% @95%C1] respectively.
The diagnostic performance of dPR (cut-off=0.89) vs FFR (cut-off=0.80) compared to iFR (cut-off=0.89) vs FFR (cut-off=0.80) was also assessed. It was demonstrated that the diagnostic performance of dPR vs FFR is not statistically different from the diagnostic performance of iFR vs FFR, with 95% confidence interval significantly overlapping.
### Hardware Description
The OptoMonitor is composed of 3 parts: The Hybrid Cable Unit (HCU), the Signal Conditioner Unit (SCU) and the Display Unit (DU). There are no changes to the device hardware (HCU and SCU) from device system cleared under K142598. The device is a non-sterile, non-patient contact device.
## 5.6 INDICATIONS FOR USE
To measure pressure in blood vessels including both coronary and peripheral vessels, during diagnostic angiography and/or any interventional procedures.
Blood pressure measurements provide hemodynamic information, such as fractional flow reserve, for the diagnosis and treatment of blood vessel disease.
#### COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE 5.7 DEVICE
The proposed OptoMonitor with dPR software upgrade is substantially equivalent to the OptoMonitor System (K142598 cleared on 06/12/2015), the catheter (pressure quidewire) from the predicate device is not affected by this submission. The OptoMonitor Optical Unit (SCU), the Handle Unit (HU) and accessories (cables, power supply, etc) are not affected by this submission. The only change is a software
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An JER cut-point of 0.89 matches hest with an FFR ischemic cut-point of 0.80 with a specificity of 87.8% and st Johnson et al., "Continuum of Vasodilator Stress From Rest to Contrast Medium to A
B. et al.. "The VERIEY 2 Study (A Comparative Study of Resting Coronary Pressure Gradient Instantaneous Wave-Free Ratio
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upgrade to the Display Unit (DU) and updated labeling (updated OptoMonitor Instructions for Use) to describe the additional software features. The proposed device and the predicate device are considered accessories to catheter pressure transducers and are coded as DXO.
Indications for the device remain unchanged from the predicate device.
The change does not impact the fundamental scientific technology of the OptoMonitor device. The change does not include modifications to the device's operating principle(s) or mechanism of action. The technological characteristics of the software upgrade raise a question concerning whether its performance can be expected to be equivalent to predicate device or completive products. Performance testing has confirmed equivalence. No new questions of safety and effectiveness were identified during review of Risk Management documentation or execution of Verification and Validation activities.
The identified questions of safety and efficacy apply to both the new device and the predicate and so the new device does not raise different questions of safety and efficacy. Therefore, the proposed device, OptoMonitor with dPR software upgrade, meets substantial equivalence requirements with regards to the legally marketed predicate OptoMonitor System (K142598 cleared on 06/12/2015) and reference devices, Volcano iFR Modality (K173860 cleared on 04/11/2018).
## 5.8 PERFORMANCE DATA
The risk management process has been used to evaluate the dPR software update to the OptoMonitor System in accordance with the quidelines set forth in ISO 14971:2007, Medical Devices - Application of Risk Management to Medical Devices. The risk analysis for the OptoMonitor with dPR has taken into consideration the medical device vigilance data of predicate device and OptoMonitor product experience. All residual risks that relate to the software update to include dPR have been taken into consideration while reviewing the risks. All OptoMonitor residual risks are outweighed by potential benefits and, therefore, are acceptable.
Software verification and validation testing were conducted in accordance with IEC 62304 and documented as recommended by FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." The software for this device was considered as a "moderate" level of concern, could lead to an erroneous diagnosis or a delay in delivery of appropriate medical care that would likely lead to Minor Injury.
No new questions of safety and effectiveness were identified during review of Risk Management documentation or execution of Verification and Validation activities.
No animal studies or clinical investigations are included with this submission.
## 5.9 CONCLUSIONS
The results from these tests mentioned above demonstrate that the technological and performance characteristics of the proposed OptoMonitor is comparable to the predicate device, support the safety and effectiveness of the device that is the subject of this 510(k), and ensure the subject device can perform in a manner equivalent to the predicate device with the same intended use.
The results of the verification/validation tests and the risk analysis have demonstrated that the software upgrade to allow calculation of dPR does not add any new questions of safety and is therefore
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## K192340
substantially equivalent to the predicate OptoMonitor System (K142598 cleared on 06/12/2015) and reference devices, Volcano iFR Modality (K173860 cleared on 04/11/2018).
## 5.10 SUBSTANTIAL EQUIVALENCE
The new proposed device is the Opsens OptoMonitor including a new dPR modality. The predicate device is the currently marketed OptoMonitor (K142598 cleared on 06/12/2015) excluding the dPR modality. The OptoMonitor Optical Unit (SCU), the Handle Unit (HU) and accessories (cables, power supply, etc) are not affected by this submission. The only change is a software upgrade to the Display Unit (DU) calculating the new dPR index and an update to labeling (updated OptoMonitor Instructions for Use) to describe the additional software features. The OptoWire pressure quidewire that connects to the OptoMonitor is not affected by this submission. The reference device is the marketed Volcano s5 system (K173860), more specifically the iFR modality. The purpose of the reference device iFR modality is to demonstrate safety and effectiveness of the dPR modality.
## Equivalence of Intended Use:
Indications for the device remain unchanged from the predicate device. The reference device contains similar indications for the pressure measurement modality.
## Equivalence of Technological Characteristics:
The only difference between the proposed device and predicate is the addition of the dPR modality embedded into the software of the display unit. Technological Characteristics are herein identical between the proposed device and the predicate. dPR and iFR are resting indices used for the diagnostic of the severity of stenosis with the patient in resting condition, as opposed to inducing hyperemia when measuring FFR. dPR modality consists in calculating the ratio of Pd and Pa over the whole diastolic portion of the heart beat cycle while iFR calculate the same ratio over 75% of the diastole. Performance testing has confirmed equivalence of the proposed device to iFR (reference device). No new questions of safety and effectiveness were identified during review of Risk Management documentation or execution of Verification and Validation activities.
## Safety and Effectiveness:
The identified questions of safety and efficacy apply to both the new device and the predicate and so the new device does not raise different questions of safety and efficacy. Specifically, a resting index calculation poses less risk to the patient as there is no need to use a hyperemic agent. The proposed device does not raise any different questions of safety and efficacy.
## Conclusion
The proposed device, OptoMonitor with dPR software upgrade, was shown to be substantially equivalent to the legally marketed predicate OptoMonitor System (K142598 cleared on 06/12/2015), except for a software change that now includes a new dPR modality.
The safety and effectiveness of Opsens dPR modality has been shown to be substantially equivalent to the iFR modality of marketed device K173860 cleared on April 11, 2018.
| | | Proposed Device | Predicate Device<br>(Primary) | Reference Device |
|-------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Regulatory<br>Information | Name | OptoMonitor | OptoMonitor | Volcano s5/s5i/CORE/CORE Mobile<br>Precision Guided Therapy System |
| | 510(k)# | K182126 | K142598 | K173860 |
| | Predicates | K142598 | K111395<br>K041134 | K133323<br>K170133 |
| | | Proposed Device | Predicate Device<br>(Primary) | Reference Device |
| | Product Code | DXO | DXO, DXO | IYO |
| | Class | 2 | 2 | 2 |
| | Regulation Number | 870.2870 | 870.1330, 870.2870 | 892.1560 |
| | Regulation Generic<br>Name | Transducer, pressure,<br>catheter tip | Wire, guide, catheter;<br>Transducer, pressure,<br>catheter tip | Ultrasonic Pulsed Echo Imaging<br>System |
| Indications for Use | Indications for Use | To measure pressure in blood<br>vessels including both<br>coronary and peripheral<br>vessels, during diagnostic<br>angiography and/or any<br>interventional procedures.<br>Blood pressure<br>measurements provide<br>hemodynamic information,<br>such as fractional flow<br>reserve, for the diagnosis and<br>treatment of blood vessel<br>disease. | To measure pressure in blood<br>vessels including both<br>coronary and peripheral<br>vessels, during diagnostic<br>angiography and/or any<br>interventional procedures.<br>Blood pressure<br>measurements provide<br>hemodynamic information,<br>such as fractional flow<br>reserve, for the diagnosis and<br>treatment of blood vessel<br>disease. | The FFR v2.5 Modality of the<br>s5/s5i/Core and Core Mobile<br>Precision Guided Therapy System is<br>indicated in all blood vessels,<br>including coronary and peripheral<br>arteries, to measure intravascular<br>blood pressure during diagnostic<br>angiography and/or interventional<br>procedures.<br>The iFR Modality is intended to be<br>used in conjunction with currently<br>marketed Volcano Pressure wires. In<br>the coronary anatomy, the iFR<br>modality has a diagnostic cut-point<br>of 0.89 which represents ischemic<br>threshold and can reliably guide<br>revascularization decisions during<br>diagnostic catheterization<br>procedure. When used as for a<br>pullback assessment, the iFR<br>modality is intended as a visual aidAdditional, unrelated indications for use |
| | Prescription Use | Rx Only | Rx Only | Rx Only |
| Technological Characteristics | System Components | Reusable signal<br>processor/monitor;<br>Embedded software;<br>Connecting Cables | Reusable signal<br>processor/monitor;<br>Embedded software;<br>Connecting Cables.<br>Sterile disposable guide wire. | Reusable signal processor/monitor;<br>Embedded software;<br>Connecting Cables. |
| | System Capabilities | Measurement of<br>intravascular blood pressure. | Measurement of<br>intravascular blood pressure. | Measurement of intravascular blood<br>pressure.<br>Additional, unrelated functions |
| | Pressure Sensing &<br>Signal Transmission<br>Technology | Senses pressure from<br>Fiberoptic sensor. | Fiberoptic sensor & fiber<br>bundle embedded in<br>guidewire. Senses pressure<br>from Fiberoptic sensor. | Pressure measurement is captured<br>through the use of pressure wires. |
| | Connected devices | OptoWire | OptoWire | SmartWire II, PrimeWire Prestige,<br>PrimeWire<br>Prestige Plus, Verrata, Verrata Plus |
| | Auto-zeroing | Yes | Yes | Yes. |
| | Real Time Curves | Aortic instantaneous<br>pressure, aortic mean<br>pressure | Aortic instantaneous<br>pressure, aortic mean<br>pressure | Aortic instantaneous pressure, aortic<br>mean pressure, distal instantaneous<br>pressure |
| | Proposed Device | Predicate Device<br>(Primary) | Reference Device | |
| | pressure, distal mean<br>pressure | instantaneous pressure,<br>distal mean pressure | Heart rate | |
| Real Time Numerical<br>Values | Mean aortic pressure, mean<br>distal pressure, mean<br>Pd/mean Pa, dPR | Mean aortic pressure, mean<br>distal pressure, mean<br>Pd/mean Pa | Mean aortic pressure, mean distal<br>pressure, mean Pd/mean Pa, iFR | |
| Recording Values | Instantaneous Pa, Pd and<br>Pd/Pa; mean Pa; mean Pd;<br>mean Pd/mean Pa | Instantaneous Pa, Pd and<br>Pd/Pa; mean Pa; mean Pd;<br>mean Pd/mean Pa | Instantaneous Pa, Pd and Pd/Pa;<br>mean Pa; mean Pd; mean Pd/mean<br>Pa | |
| Hyperemic agent | Not required for dPR<br>Required for FFR | Required for FFR | Required for FFR. Not required for<br>iFR | |
| Calculation types | dPR, FFR | FFR | FFR, iFR | |
| Diastolic Resting<br>Indices calculations | $dPR = \frac{P_{d,diastole}}{P_{a,diastole}}$ | N/A | $iFR = \frac{P_{d,WFP}}{P_{a,WFP}}$ | |
| Resting Indices<br>Wave selection | Automatically selected | N/A | Automatically selected | |
| Resting indices<br>cutoff point | .89 | N/A | .89 | |
| Aortic Input | High Level (100 mmHg/V) | High Level (100 mmHg/V) | High Level (100 mmHg/V) | |
| Distal pressure<br>output | Low level 5uV/mmHg | Low level 5uV/mmHg | Low level 5uV/mmHg | |
| Hardware<br>components | Signal Conditioner Unit (SCU),<br>the Display Unit (DU), The<br>Handle Unit (HU) and<br>accessories (cables, power<br>supply, etc) | Signal Conditioner Unit (SCU),<br>the Display Unit (DU), The<br>Handle Unit (HU) and<br>accessories (cables, power<br>supply, etc) | The reference device is a larger<br>system with additional capabilities<br>not related to this submission. | |
| Operating Pressure | 70 to 106 kPa | 70 to 106 kPa | 70 to 106 kPa | |
| Pressure Range | -30 to 300 mmHg | -30 to 300 mmHg | -30 to 300 mmHg | |
| Pressure Accuracy | +/- 1 mmHg plus +/- 1% of<br>reading<br>(pressure range -30 to 50<br>mmHg) or +/- 3% of reading<br>(pressure range 50 to 300<br>mmHg) | +/- 1 mmHg plus +/- 1% of<br>reading<br>(pressure range -30 to 50<br>mmHg) or +/- 3% of reading<br>(pressure range 50 to 300<br>mmHg) | Not specified. | |
| Thermal Zero Shift | <0.3 mmHg/deg C | <0.3 mmHg/deg C | Not specified | |
| Zero Drift | <1 mmHg/h | <1 mmHg/h | 5 mmHg / 10 minutes | |
| Electrical Isolation | class 1 (functional ground) | class 1 (functional ground) | class 1 (functional ground) | |
| User Interface | Touchscreen | Touchscreen | Bedside : Touchpad or joystick<br>Control room : Console | |
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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.