K152251 · Henan Tuoren Medical Device Co., Ltd. · CBI · Jun 10, 2016 · Anesthesiology
Device Facts
Record ID
K152251
Device Name
Endobronchial Tube
Applicant
Henan Tuoren Medical Device Co., Ltd.
Product Code
CBI · Anesthesiology
Decision Date
Jun 10, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 868.5740
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Endobronchial Tube is used to isolate the left or right lung of a patient for surgery, one lung ventilation or one lung anesthesia.
Device Story
Endobronchial tube; double-lumen PVC tube with two cuffs; used to isolate left or right lung for surgery, one-lung ventilation, or anesthesia. Input: manual placement by clinician in hospital OR or ICU. Operation: tube inserted into trachea/bronchus; cuffs inflated to isolate lung; 15mm connectors attach to ventilation source. Output: isolated lung ventilation. Benefits: enables selective lung ventilation during thoracic surgery. Includes radiopaque line for X-ray detection; stylet and Carlens adapter included. Single-use, disposable.
Clinical Evidence
No clinical or animal data provided. Substantial equivalence supported by bench testing, including biocompatibility (cytotoxicity, sensitization, irritation per ISO 10993) and mechanical performance testing (cuff diameter, collapse, herniation, seal, kink resistance, valve gauging, bond strength, and radiopacity).
Technological Characteristics
Materials: PVC. Design: Double-lumen tube with 2 cuffs, 15mm connectors, radiopaque line. Standards: ISO 5361 (cuffed tubes), ISO 5356-1 (connectors), ISO 8836 (suction catheters), ISO 10993 (biocompatibility). Sterilization: Ethylene Oxide (ISO 11135). Dimensions: 26Fr to 41Fr. Connectivity: None (mechanical).
Indications for Use
Indicated for patients undergoing surgical procedures requiring isolation of one lung for one lung ventilation or one lung anesthesia.
Regulatory Classification
Identification
A tracheal/bronchial differential ventilation tube is a device used to isolate the left or the right lung of a patient for anesthesia or pulmonary function testing.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
June 10, 2016
Henan Tuoren Medical Device Co., Ltd C/O Long Yang COO Shenzhen Hlongmed Biotech Company R15-08, East Building, Yihai Plaza, Chuangye Road, Nanshan District, Shenzhen, Guangdong, 518054 China
Re: K152251 Trade/Device Name: Endobronchial Tube Models: Left: Fr26, Fr28, Fr31, Fr32, Fr33, Fr35, Fr37, Fr39, Fr41; Right: Fr26, Fr28, Fr31, Fr32, Fr33, Fr35, Fr37, Fr39, Fr41 Regulation Number: 21 CFR 868.5740 Regulation Name: Tracheal/Bronchial Differential Ventilation Tube Regulatory Class: Class II Product Code: CBI Dated: May 6, 2016 Received: May 12, 2016
Dear Long Yang:
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
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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 yours.
*Tejashri Purohit-Sheth, M.D.*
Tejashri Purohit-Sheth, M.D. Clinical Deputy Director DAGRID/ODE/CDRH FOR
Erin I. Keith, M.S. 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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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
#### Indications for Use
510(k) Number (if known)
K152251
#### Device Name
Endobronchial Tube
Models: Left: Fr26, Fr31, Fr32, Fr33, Fr35, Fr37, Fr39, Fr41; Right: Fr26, Fr28, Fr33, Fr33, Fr33, Fr37, Fr39, Fr41
Indications for Use (Describe)
The Endobronchial Tube is used to isolate the left or right lung of a patient for surgery, one lung ventilation or one lung anesthesia.
| 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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TUOREN Henan Tuoren Medical Device Co., Ltd
## 510(k) Summary
(as required by 807.92(c))
The assigned 510(K) number is: K152251
Date of Summary: June 9, 2016
#### 1. Submitter information
Manufacturer Name: Henan Tuoren Medical Device Co., Ltd
Address: Weiyuan Industrial Zone, Menggang ,Changyuan Country, Henan, China
Establishment Registration Number: 3006984712
Contact Person and Title: Meizi Zhang/Manager of Registration Department
Tel: 0086-13633736073
Fax: 0086-373-8605321
Email: 13633736073@163.com
#### 2. Contact person
#### 2.1 Primary Contact Person
Long Yang (COO) Shenzhen Hlongmed Biotech Company R1508, East Building, Yihai Plaza, Chuangye Road, Nanshan District,Shenzhen, P.R. China Tel: 0086-755-86664986 Fax: 0086-755-86664933 E-mail: yanglong@hlongmed.com
#### 2.2 Secondary Contact Person
Meizi Zhang(Manager of Registration Department) Henan Tuoren Medical Device Co., Ltd Tel: 0086-13633736073
#### 3. Device Classification
| Device Sponsor | Henan Tuoren Medical Device Co., Ltd |
|----------------|--------------------------------------|
|----------------|--------------------------------------|
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| Trade/Device Name | Endobronchial Tube |
|------------------------------|---------------------------------------------------------------------------------------------------------------------------|
| Model | Left: Fr26, Fr28, Fr31, Fr32, Fr33, Fr35, Fr37, Fr39, Fr41<br>Right: Fr26, Fr28, Fr31, Fr32, Fr33, Fr35, Fr37, Fr39, Fr41 |
| Common Name | Endobronchial Double Lumen Tube |
| Classification Name | Tube, Tracheal/Bronchial, Differential Ventilation (W/Wo Connector) |
| Regulatory Class | Class II |
| Classification regulation | 21CFR 868.5740 |
| Review Panel | Anesthesiology |
| Regulation Medical Specialty | Anesthesiology |
| Regulation Name | Tracheal/bronchial differential ventilation tube |
| Product Code | CBI |
## OREN Henan Tuoren Medical Device Co., Ltd
#### 4. Intended Use/ Indications for Use
The Endobronchial Tube is used to isolate the left or right lung of a patient for surgery, one lung ventilation or one lung anesthesia.
#### 5. Predicate Device
Well LEAD Endobronchial Tubes(K092886)
#### 6. Device Description
The Endobronchial Tube is made of Polyvinylchloride and is available in sizes 26fr to 41fr. They are designated as double lumen tube with 2 cuffs and separate 15mm connectors for isolating and ventilating one lung during surgical procedures. The tubes contain an x-ray opaque line that runs through the tube making them detectable by x-ray. Environments of use: Hospital-OR and ICU
#### 7. Substantial Equivalence
Henan Tuoren Medical Device Co., Ltd claims the proposed devices to be substantially equivalent to the devices previously cleared by FDA in K092886. Henan Tuoren Medical
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# TUOREN Henan Tuoren Medical Device Co., Ltd
Device Co.. Ltd claims this equivalence because the proposed devices have an equivalent intended use, manufacturing materials, operating principles and physical operational specifications as compared to the predicate devices. The similarities and differences between the proposed and predicate devices have been identified and explained in the comparison matrix, the comparison matrix can be referred to the below table. The differences between subject device and the predicate device is just the size and packaging, these differences do not effect substantial equivalence, the analysis and justification is: For the size differences, all models of proposed devices comply to the same standard ISO 5361 compared to predicate devices. For the packaging differences, the multi-functional joint of proposed device comply to the same standard ISO 5356-1 compared to predicate devices, and the suction catheters of proposed devices comply to the same standard ISO 8836 compared to predicate devices..
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| Item | Element Of Comparison | Proposed Device | Predicate Device | S/D* |
|------|------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------|
| 1 | Classification Name | Tube, Tracheal/Bronchial, Differential Ventilation<br>(W/Wo Connector) | Tube, Tracheal/Bronchial, Differential Ventilation<br>(W/Wo Connector) | S |
| 2 | Regulatory Class | Class II | Class II | S |
| 3 | Classification regulation | 21CFR 868.5740 | 21CFR 868.5740 | S |
| 4 | Classification Panel | Anesthesiology | Anesthesiology | S |
| 5 | Product Code | CBI | CBI | S |
| 6 | Regulation Name | Tracheal/bronchial differential ventilation tube | Tracheal/bronchial differential ventilation tube | S |
| 7 | Indications<br>for<br>Use/Intended Use | Endobronchial Tubes is used to isolate the left or the<br>right lung of a patient for surgery,one lung ventilation<br>or one lung anesthesia. | The Well Lead Endobronchial Tubes is used to<br>isolate the left or the right lung of a patient for<br>surgery,one lung ventilation or one lung anesthesia. | S |
| 8 | Directions for Use | Prescription Use | Prescription Use | S |
| 9 | Patient Population | Patients undergoing surgical procedure requiring<br>isolation of one lung | Patients undergoing surgical procedure requiring<br>isolation of one lung | S |
| 10 | Patient contact Material | Tube-PVC and Cuff-PVC | Tube-PVC and Cuff-PVC | S |
| 11 | Size(Fr) | 26 to 41 French | 28 to 41 French | D, does not affect the<br>product performance |
| 12 | Design Features | Double lumen shaft, 2 cuffs, Stylet, Carlens adapter | Double lumen shaft, 2 cuffs, Stylet, Carlens adapter | S |
| 13 | Composition<br>of<br>Endobronchial Tubes | main tube, cuff, connector, inflating tube, valve, pilot<br>balloon | main tube, cuff, connector, inflating tube, valve,<br>pilot balloon | S |
| 14 | Angle of bevel | 70° | 70° | S |
| 15 | Radius of curvature | 140mm | 140mm | S |
| Item | Element Of Comparison | Proposed Device | Predicate Device | S/D* |
| 16 | Radiopaque line | Yes | Yes | S |
| 17 | Connection to ventilation<br>source | 15mm connector | 15mm connector | S |
| 18 | Shelf-life | 5 years | 5 years | S |
| 19 | Single Use<br>Single patient, disposable | Yes | Yes | S |
| 20 | Method of sterilization | Ethylene Oxide Sterilized per ISO 11135 | Ethylene Oxide Sterilized per ISO 11135 | S |
| 21 | The Sterility Assurance<br>Level | SAL 10-6 | SAL 10-6 | S |
| 22 | EO and ECH residual | The ethylene oxide residual is conform to ISO<br>10993:7 for Limited Exposure Devices of 4mg/day<br>for EO and 9/mg/day for ECH. | The ethylene oxide residual is conform to ISO<br>10993:7 for Limited Exposure Devices of 4mg/day<br>for EO and 9/mg/day for ECH. | S |
| 23 | Biocompatibility | 1.Cytotoxicity testing per 10993-5<br>2. Sensitization testing per ISO 10993-10<br>3.Irritation Test per ISO 10993-10<br>All the test passed. | 1. Cytotoxicity testing per 10993-5<br>2. Sensitization testing per ISO 10993-10<br>3. Irritation Test per ISO 10993-10<br>All the test passed. | S |
| 24 | Applied Standards | ISO 5361<br>ISO 10993-1<br>ISO 10993-5<br>ISO 10993-10<br>ISO 11135<br>ISO 10993-7 | ISO 5361<br>ISO 10993-1<br>ISO 10993-5<br>ISO 10993-10<br>ISO 11135<br>ISO 10993-7 | S |
| 25 | Packaging | Sterile, packed with a multi-functional joint and three<br>Suction Catheters | Sterile, packed with switch connector and two<br>suction catheters | D, does not affect the product performance |
| 26 | Environments of use | Hospital-OR and ICU | Hospital-OR and ICU | S |
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# TUORen Henan Tuoren Medical Device Co., Ltd
#### 8. Product Performance Testing
All testing that is required by the required standards has been performed. Non-clinical testing was performed and included standards such as ISO 5361 and ISO 10993-1. The Endobronchial Tube have been found to fall within the required limits of the testing. The test results can be found in both the Biocompatibility (Section16) and the Performance Testing_Bench (Section19) of this submission. Therefore we have concluded that the Endobronchial Tube are substantially equivalent.
A brief summary of tests relied upon to demonstrate substantial equivalence to the predicate can be found in the table below:
| Type of Test | Referenced Standard | Test result |
|---------------------------------------------------------------------|---------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| in vitro cytotoxicity | ISO10993-5:2009 | Under the conditions of using ISO10993-5: 2009<br>test method MTT method MEM extract, the test<br>article Endobronchial Tube extract showed no<br>potential toxicity to L-929 cells. |
| | | Under the conditions of using ISO10993-5: 2009<br>test method MTT method MEM with 10% FBS<br>extract, the test article Endobronchial Tube extract<br>showed no potential toxicity to L-929 cells. |
| Skin sensitization<br>Test using Guinea<br>Pig Maximization<br>test | ISO10993-10:2010 | Under the conditions of using ISO10993-10: 2010<br>test methods guinea pig maximization test 0.9%<br>sodium chloride injection extract, the test article<br>Endobronchial Tube extract showed no significant<br>evidence of causing skin sensitization in the guinea<br>pig; |
| | | Under the conditions of using ISO10993-10:2010<br>test methods guinea pig maximization test sesame<br>oil extract, the test article Endobronchial Tube<br>extract showed no significant evidence of causing<br>skin sensitization in the guinea pig; |
#### 1) Biocompatibility testing
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| Type of Test | Referenced Standard | Test result |
|--------------------------------|---------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Oral Mucosa<br>Irritation test | ISO10993-10:2010 | Under the conditions of using ISO10993-10:2010<br>test methods 0.9% sodium chloride extract, the test<br>result showed that the test article Endobronchial<br>Tube extract show no significant evidence of<br>causing oral irritation in the hamster.<br><br>Under the conditions of using ISO10993-10:2010<br>test methods sesame oil extract, the test result<br>showed that the test article Endobronchial Tube<br>extract show no significant evidence of causing<br>oral irritation in the hamster. |
# TUOREN Henan Tuoren Medical Device Co., Ltd
#### 2) Performance Testing
| Type of Bench Test | Reference standards | Acceptable Criteria | Pass/fail |
|----------------------------------------------------------|---------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|
| cuff diameter | ISO 5361: 2012 | The maximum cuff diameter shall be within ± 0.5mm of the nominal value when tested according to ISO 5361 Annex B | Pass |
| cuffed tube collapse test | ISO 5361: 2012 | the steel ball shall pass freely through the tube when tested according to ISO 5361 Annex C | Pass |
| Cuff herniation test | ISO 5361: 2012 | no part of the inflated cuff shall reach beyond the nearest edge of the bevel when tested according to ISO 5361 Annex D | Pass |
| Seal testing | ISO 5361: 2012 | The leakage limit is ≤2.0ml/h at cuff pressures not to exceed 2,7 kPa (27 cmH2O) when tested according to ISO 5361 Annex G | Pass |
| / | | Sealing of cuff inflating system:<br>No air leakage happens under the condition of continuous 3kPa positive pressure imposition for 10 seconds | Pass |
| / | | Sealing of connector assembly:<br>No air leakage happens on any joints under the condition of continuous 6kPa gas pressure imposition to lumen of main tube(shaft) for 60 seconds. | Pass |
| inflating tube | ISO 5361: 2012 | The inflating tube shall have an outside diameter of not more than 3.0mm | Pass |
| | ISO 5361: 2012 | The angle between the inflating tube and the Endobronchial tube at the point of separation shall not exceed 45°. | Pass |
| Kink resistance test | ISO 5361: 2012 | the steel ball shall pass freely through the lumen of the tube when tested according to ISO 5361 Annex H | Pass |
| Gauging of One Way Valve | ISO 594/1 1986 | The plane of the maximum diameter at the opening of the female conical fitting of One Way Valve lie between the two limit planes of the gauge. | Pass |
| Liquid leakage of One Way Valve | ISO 594/1 1986 | no leakage sufficient to form a falling drop of water | Pass |
| Air leakage of One Way Valve | ISO 594/1 1986 | Continued formation of air bubbles not be evident | Pass |
| Separation force of One Way Valve | ISO 594/1 1986 | The conical fitting under test remain attached to the test fixture | Pass |
| Stress cracking | ISO 594/1 1986 | There shall be no evidence of stress cracking of the conical fitting | |
| Security of construction of suction catheter | ISO 8836-2007 | the force required to detach any component permanently attached to the shaft shall be not less than that specified in standard | Pass |
| Shaft resistant to negative pressure of suction catheter | ISO 8836-2007 | a vacuum source at 40kPa below ambient pressure for 15s at a temperature of 23°C ±2°C with the patient end occluded, the shaft shall not collapse | Pass |
| 15mm connector | ISO5356-1: 2004 | Comply with the ISO5356-1: 2004 | Pass |
| Burst Testing | / | Cuff burst: The volume of injected gas when cuff bursting happens is larger than 40ml during inflation of endobronchial tube<br>bursting between cuff and main tube:<br>There should be no fracture on junctions while inflated 30kpa gas. | Pass |
| Bond Strength | / | The joints of endobronchial tube should be firm bonding.When an axial force of 50±5N is applied at 50±5mm/min, the testing portion(between connector and | Pass |
| Henan Tuoren Medical Device Co., Ltd | | | |
| Air flow resistance | / | Pressure increment should no more than 0.2Kpa/h when testing the endobronchial tube under the specified flow rate(3, 6, 9L/min) | Pass |
| Radiopaque test | / | When exposing the Endobronchial tube with the low dose rays, the X-ray machine should have film development. | Pass |
| Endotoxin test | USP36_NF31<85> | 0.25EU/ml, 20EU/Device | Pass |
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TUORen Henan Tuoren Medical Device Co., Ltd
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## TU●Ren Henan Tuoren Medical Device Co., Ltd
#### 9. Clinical Testing and animal testing
Clinical and animal testing were not performed for Endobronchial Tube as part of the premarket Notification requirements for this 510(k) submission and the subject of this premarket submission, Endobronchial Tube, did not require clinical and animal studies to support substantial equivalence.
### 10. Substantial Equivalence Conclusion
The information provided in the 510(k) submission is sufficient to demonstrate the substantial equivalence of subject device to the predicate 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.