Indigo Aspiration System – Lightning Aspiration Tubing
K193244 · Penumbra, Inc. · QEW · Mar 13, 2020 · Cardiovascular
Device Facts
Record ID
K193244
Device Name
Indigo Aspiration System – Lightning Aspiration Tubing
Applicant
Penumbra, Inc.
Product Code
QEW · Cardiovascular
Decision Date
Mar 13, 2020
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.5150
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
INDIGO Aspiration Catheters and Separators As part of the INDIGO Aspiration System, the INDIGO Aspiration Catheters and Separators are indicated for the removal of fresh, soft emboli and thrombi from vessels of the peripheral arterial and venous systems. INDIGO Aspiration Tubing As part of the INDIGO Aspiration System, the INDIGO Sterile Aspiration Tubing is indicated to connect the INDIGO Aspiration Catheters to the Penumbra Aspiration Pump. Penumbra Aspiration Pump The Penumbra Aspiration Pump is indicated as a vacuum source for Penumbra Aspiration Systems.
Device Story
Lightning Aspiration Tubing is a component of the Indigo Aspiration System; facilitates vacuum transfer between Indigo Aspiration Catheters and Penumbra Aspiration Pump. System uses mechanical aspiration to remove thrombus from peripheral vasculature. Catheter introduced via guide catheter/sheath over guidewire to occlusion site; pump provides vacuum source. Separator may be deployed to clear catheter lumen. Used in clinical settings by trained physicians. Output is visual (fluoroscopy) and physical (thrombus removal). Benefits patient by restoring vessel patency.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing, including biocompatibility (ISO 10993-1), design verification (tensile strength, simulated use, compatibility), shelf-life testing, and electrical/EMC safety (IEC 60601 series).
Technological Characteristics
Sterile, single-use aspiration tubing. Materials are biocompatible and commonly utilized for interventional devices. Connects catheter to vacuum pump. Sterilized via Ethylene Oxide (EO) per BS EN ISO 11135. Complies with IEC/EN 60601-1, 60601-1-2, 60601-1-6, and 62366-1.
Indications for Use
Indicated for removal of fresh, soft emboli and thrombi from peripheral arterial and venous vessels. Used by trained physicians in surgical/interventional procedures.
Regulatory Classification
Identification
An embolectomy catheter is a balloon-tipped catheter that is used to remove thromboemboli, i.e., blood clots which have migrated in blood vessels from one site in the vascular tree to another.
Predicate Devices
110 Aspiration Tubing (Modified) – INDIGO Aspiration System (K180939)
Reference Devices
110 Aspiration Tubing – INDIGO Aspiration System (K142870)
Submission Summary (Full Text)
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image contains two logos. On the left is the Department of Health & Human Services logo. On the right is the FDA logo, which includes the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.
March 13, 2020
Penumbra, Inc. Ms. Micaela Victoria Regulatory Affairs Specialist III One Penumbra Place Alameda, California 94502
Re: K193244
Trade/Device Name: Indigo Aspiration System - Lightning Aspiration Tubing Regulation Number: 21 CFR 870.5150 Regulation Name: Embolectomy Catheter Regulatory Class: Class II Product Code: QEW Dated: February 11, 2020 Received: February 12, 2020
Dear Ms. Victoria:
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 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
{1}------------------------------------------------
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 mediation-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.
Gregory O'Connell Assistant Director DHT2C: Division of Coronary and Peripheral Intervention Devices OHT2: Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
## Indications for Use
510(k) Number (if known) K193244
Device Name
Indigo Aspiration System - Lightning Aspiration Tubing
Indications for Use (Describe)
INDIGO Aspiration Catheters and Separators
As part of the INDIGO Aspiration System, the INDIGO Aspiration Catheters and Separators are indicated for the removal of fresh, soft emboli and thrombi from vessels of the peripheral and venous systems.
INDIGO Aspiration Tubing
As part of the INDIGO Aspiration System, the INDIGO Sterile Aspiration Tubing is indicated to connect the INDIGO Aspiration Catheters to the Penumbra Aspiration Pump.
Penumbra Aspiration Pump
The Penumbra Aspiration Pump is indicated as a vacuum source for Penumbra Aspiration Systems.
Type of Use (Select one or both, as applicable)
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
### CONTINUE ON A SEPARATE PAGE IF NEEDED.
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
{3}------------------------------------------------
#### 1 510(k) Summary
(as required by 21 CFR 807.92)
Pursuant to Section 12, Part (a)(i)(3A) of the Safe Medical Devices Act of 1990, Penumbra, Inc. is providing the summary of Substantial Equivalence for the Indigo® Aspiration System - Lightning Aspiration Tubing.
#### 1.1 Sponsor/Applicant Name and Address
Penumbra, Inc. One Penumbra Place Alameda, CA 94502 USA
#### 1.2 Sponsor Contact Information
Micaela Victoria Regulatory Affairs Specialist III Phone: (510) 995-2082 FAX: (510) 217-6414 Email: mvictoria@penumbrainc.com
#### 1.3 Date of Preparation of 510(k) Summary
January 14, 2020
#### 1.4 Device Trade or Proprietary Name
Indigo® Aspiration System – Lightning Aspiration Tubing
#### 1.5 Device Classification
| Regulatory Class: | II |
|-----------------------|-----------------------|
| Classification Panel: | Cardiovascular |
| Classification Name: | Catheter, Embolectomy |
| Regulation Number: | 21 CFR §870.5150 |
| Product Code: | QEW |
#### 1.6 Predicate and Reference Devices
| 510(k) Number/Clearance Date | Name of Device | Name of Manufacturer | System Name | INDIGO® Aspiration System | | |
|---------------------------------|-------------------------------------------------------------------|---------------------------------------------------------------|--------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------|
| Predicate Device | | | Device Name | 110 Aspiration Tubing (modified)<br>[Predicate Device] | 110 Aspiration Tubing<br>[Reference Device] | Lightning Aspiration<br>Tubing<br>Subject Device |
| K180939 cleared on May 3, 2018 | 110 Aspiration Tubing<br>(Modified) – INDIGO<br>Aspiration System | Penumbra, Inc.<br>One Penumbra Place<br>Alameda, CA 94502 USA | 510(k) Number | K180939 | K142870 | TBD |
| Reference Device | | | Classification | DXE | SAME | QEW |
| K142870 cleared on May 26, 2015 | 110 Aspiration Tubing –<br>INDIGO Aspiration<br>System | Penumbra, Inc.<br>One Penumbra Place<br>Alameda, CA 94502 USA | Indication for Use | INDIGO Aspiration Catheters and Separators<br>As part of the INDIGO Aspiration System, the<br>INDIGO Aspiration Catheters and Separators are<br>indicated for the removal of fresh, soft emboli<br>and thrombi from vessels of the peripheral arterial<br>and venous systems.<br>INDIGO Aspiration Tubing<br>As part of the INDIGO Aspiration System, the<br>INDIGO Sterile Aspiration Tubing is indicated to<br>connect the INDIGO Aspiration Catheters to the<br>Penumbra Aspiration Pump.<br>Penumbra Aspiration Pump<br>The Penumbra Aspiration Pump is indicated as a<br>vacuum source for Penumbra Aspiration Systems. | The Penumbra Embolectomy<br>Aspiration System is<br>intended for the removal of<br>fresh, soft emboli and<br>thrombi from vessels of the<br>peripheral arterial and<br>venous systems.<br>Not for use in the coronaries<br>or the neurovasculature. | SAME as Predicate<br>Device |
| Materials | Biocompatible, commonly utilized for<br>interventional devices | SAME | SAME | | | |
| Dimensions | | | | | | |
| Tubing inner diameter<br>(ID) | 0.110 in | SAME as Predicate Device | 0.131 in | | | |
{4}------------------------------------------------
#### 1.7 Predicate Comparison
{5}------------------------------------------------
| Tubing outer diameter<br>(OD) | 0.188 in | SAME as Predicate Device | 0.237 in |
|-------------------------------|----------------------------------------------|--------------------------|-----------------------------|
| Overall Length | 100.0 in | 112.0 in | SAME as Predicate<br>Device |
| Distal length | N/A (Single piece construction) | 7.9 in | 8 in |
| Packaging<br>Configurations | Individual and Kit | SAME as Predicate Device | Kit only |
| Packaging Materials | Commonly utilized for interventional devices | SAME | SAME |
| Aspiration Source | Penumbra Aspiration Pump | SAME | SAME |
| Sterilization | EO | SAME | SAME |
| Shelf Life | 36 months | SAME as Predicate Device | 12 months |
{6}------------------------------------------------
Image /page/6/Picture/1 description: The image shows the logo for Penumbra, Inc., a healthcare company. The word "Penumbra" is written in a red sans-serif font. To the right of the word is a red circle with a white "P" inside of it.
#### 1.8 Device Description
The Indigo Aspiration System ("Indigo System") is intended for the removal of fresh, soft emboli and thrombi from vessels of the peripheral arterial and venous systems using the Indigo Aspiration Catheter, Indigo Separator, Indigo Aspiration Tubing, and Penumbra Aspiration Pump. The Indigo System was most recently cleared under K180939.
The INDIGO® Aspiration System is comprised of the several devices:
- · INDIGO Aspiration Catheter
- Penumbra Aspiration Pump
- INDIGO Pump/Canister Tubing
- INDIGO Aspiration Tubing
- INDIGO Separator
The INDIGO Aspiration System is designed to remove thrombus from the vasculature using mechanical aspiration. The INDIGO Aspiration Catheter targets aspiration from the pump directly to the thrombus. The INDIGO Separator may be used to clear the lumen of the INDIGO Aspiration Catheter should it become blocked with thrombus. The INDIGO Aspiration Catheter is introduced through a guide catheter or vascular sheath into the peripheral vasculature and guided over a guidewire to the site of the primary occlusion. The INDIGO Aspiration Catheter is used with the Penumbra Aspiration Pump to aspirate thrombus from an occluded vessel. As needed, an INDIGO Separator may be deployed from the INDIGO Aspiration Catheter to assist with thrombus removal. The INDIGO Separator is advanced and retracted through the INDIGO Aspiration Catheter at the proximal margin of the primary occlusion to facilitate clearing of the thrombus from the INDIGO Aspiration Catheter tip. The devices are visible under fluoroscopy. For the aspiration source, the INDIGO Aspiration Catheter is used in conjunction with the Penumbra Aspiration Pump, which is connected using the INDIGO Aspiration Tubing and the INDIGO Aspiration Pump Canister. The INDIGO Aspiration Catheter may be provided with a steam shaping mandrel, rotating hemostasis valve, and introducer. The INDIGO Separator may be provided with an introducer and torque device.
### Lightning Aspiration Tubing
The Lightning Aspiration Tubing is a component to the currently available Indigo Aspiration System. The Lightning Aspiration Tubing facilitates the transfer of vacuum between the INDIGO Aspiration Catheter and the Penumbra Aspiration Pump while providing
{7}------------------------------------------------
Image /page/7/Picture/1 description: The image shows the word "Penumbra" in a red, sans-serif font, followed by a red circle with a white "P" inside. The "P" is stylized with a horizontal line extending from the left side of the "P" to the edge of the circle. The logo is simple and modern, with a focus on the company name and a stylized initial.
aspiration. Intended users for this device are physicians who have received appropriate training in surgical procedures and/or interventional techniques. The device is provided sterile, non-pyrogenic, and intended for single use only.
#### 1.9 Indications for Use
## INDIGO Aspiration Catheters and Separators
As part of the INDIGO Aspiration System, the INDIGO Aspiration Catheters and Separators are indicated for the removal of fresh, soft emboli and thrombi from vessels of the peripheral arterial and venous systems.
### INDIGO Aspiration Tubing
As part of the INDIGO Aspiration System, the INDIGO Sterile Aspiration Tubing is indicated to connect the INDIGO Aspiration Catheters to the Penumbra Aspiration Pump.
### Penumbra Aspiration Pump
The Penumbra Aspiration Pump is indicated as a vacuum source for Penumbra Aspiration Systems.
### 1.10 Summary of Non-Clinical Data
As required under Section 12, Part (a)(i)(3A) of the Safe Medical Devices Act of 1990, a summary of any information regarding substantial equivalence of the device follows.
Included in this section are summary descriptions of the testing (or rationale for not testing if not applicable) which substantiates the performance of the subject Indigo Aspiration System - Lightning Aspiration Tubing as well as its substantial equivalence to the predicate device:
- Biocompatibility (Leveraged) ●
- Design Verification (Bench-Top Testing) .
- Shelf Life .
- Sterilization
- Packaging ●
- Software .
- Electrical/EMC ●
The subject Lightning Aspiration Tubing met all established requirements.
{8}------------------------------------------------
Image /page/8/Picture/1 description: The image shows the word "Penumbra" in red font, followed by a red circle with a white "P" inside. The "P" is stylized with a horizontal line extending from the left side of the "P" to the edge of the circle. The logo is simple and modern, with a focus on the company name and a distinctive symbol.
# 1.10.1 Biocompatibility (Leveraged)
Biocompatibility was leveraged for the subject Lightning Aspiration Tubing. The studies were selected in accordance with ISO 10993-1 guidelines (Biological Evaluation of Medical Devices) for a limited exposure (< 24 hours), externally communicating device with circulating blood contact. All studies were conducted pursuant to 21 CFR, Part 58, Good Laboratory Practices (GLP).
| Biocompatibility Test Summary | | |
|-------------------------------|------------------------------------------------------------|-------------------------|
| Test | Method | Results |
| In Vitro Cytotoxicity | ISO Elution Test (MEM<br>Elution) | Pass<br>Non-Toxic |
| Sensitization | ISO Maximization Test<br>(Magnusson and Kligman<br>Method) | Pass<br>Non-Sensitizing |
| Irritation | ISO Intracutaneous Reactivity | Pass<br>Non-Irritant |
# 1.10.2 Design Verification (Bench-Top Testing)
The physical and mechanical properties of the subject Lightning Aspiration Tubing was assessed using standard test methods and pre-determined acceptance criteria. The following tests were performed and all tests passed successfully:
| Attribute | Specification | Results |
|-------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|---------|
| Dimensional/Visual<br>Inspection | These evaluations confirm that the units used in this<br>Design Verification testing meet all product<br>specification. | Pass |
| Simulated Use | Simulated use testing of the Aspiration Tubing was<br>conducted to verify units met specifications | Pass |
| Tensile Strength | Minimum value per specification | Pass |
| Indigo Aspiration System<br>Compatibility | Must meet specification | Pass |
| Lightning Aspiration<br>Tubing Valve Sense<br>Testing | Must meet specification | Pass |
Lightning Aspiration Tubing Design Verification Test Results Summary
{9}------------------------------------------------
Image /page/9/Picture/1 description: The image shows the Penumbra company logo. The word "Penumbra" is written in a bold, red font. To the right of the word is a red circle with a white, stylized "P" inside. The logo is simple and modern.
### 1.10.3 Shelf Life
Testing was performed on the subject Lightning Aspiration Tubing to support a 12-month shelf life based on accelerated aging.
### 1.10.4 Sterilization
The subject Lightning Aspiration Tubing is provided sterile and intended to be single-use. Ethylene Oxide (EO) gas exposure is used to sterilize the subject Lightning Aspiration Tubing accordance with BS EN ISO 11135.
## 1.10.5 Packaging
Packaging Validation Testing has been completed for the subject Lightning Aspiration Tubing. The subject device met all acceptance criteria.
## 1.10.6 Software Verification and Validation
Software verification and validation testing and documentation for the Lightning Aspiration Tubing was provided as recommended by FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices" (issued May 11, 2005). The software for this device was considered as a Minor Level of Concern.
## 1.10.7 Electrical Safety/EMC Testing
Electrical Safety and EMC testing were conducted on the Lightning Aspiration Tubing. The subject device complies with the requirements of IEC/EN 60601-1, IEC/EN 60601-1-2, IEC 60601-1-6, and IEC/EN 62366-1
### 1.10.8 Animal Testing
Animal testing was not required for the determination of substantial equivalence.
## 1.10.9 Clinical Testing
Clinical testing was not required for the determination of substantial equivalence.
{10}------------------------------------------------
Image /page/10/Picture/1 description: The image shows the word "Penumbra" in a red sans-serif font. To the right of the word is a circular logo, also in red, with a white stylized "P" inside. The logo has a registered trademark symbol at the bottom right.
## 1.11 Summary of Substantial Equivalence
The subject Lightning Aspiration Tubing is substantially equivalent to the predicate device. The subject device has an identical intended use as the predicate device. The subject and the predicate devices differ slightly in regards to minor technological variations, while maintaining the same fundamental scientific technology. However, these differences do not raise different questions of safety and effectiveness.
The device testing described in the 510(k) Summary demonstrate the subject devices are substantially equivalent to the predicate device in regard to intended use, fundamental technology and device performance.
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.