The HawkOne Directional Atherectomy System is intended for use in atherectomy of the peripheral vasculature. The HawkOne catheter is indicated for use in conjunction with the SpiderFX Embolic Protection Device in the treatment of severely calcified lesions. The HawkOne catheter is NOT intended for use in the coronary, carotid, iliac or renal vasculature.
Device Story
HawkOne Directional Atherectomy System treats peripheral artery disease by removing atherosclerotic plaque. System comprises flexible catheter with distal rotating cutting assembly and battery-powered cutter driver. Physician advances catheter over 0.014" guidewire to lesion site; activates thumb switch to engage rotating blade; shaves occlusive material; captures excised tissue in catheter tip. Process repeated as needed. Used in clinical setting; requires SpiderFX Embolic Protection Device for severely calcified lesions to mitigate distal embolization. Output is physical removal of plaque, improving vessel patency.
Clinical Evidence
Bench testing only. Performance evaluated via device inspections, urge force, cycle/life testing, cutter height, tracking force, shaft torque, carbide edge attachment, tensile tests, catheter/driver interaction, embolization, cut mass per pass, tissue removal cycles, package integrity, and biocompatibility.
Technological Characteristics
Directional atherectomy catheter with rotating inner blade in tubular housing; battery-powered cutter driver; 0.014" guidewire compatible. Mechanical cutting principle. Sterilized via validated method. Standalone operation.
Indications for Use
Indicated for atherectomy of peripheral vasculature in patients with de novo and restenotic atherosclerotic calcified and non-calcified lesions. Use with SpiderFX Embolic Protection Device required for severely calcified lesions. Contraindicated for use in coronary, carotid, iliac, or renal vasculature.
Regulatory Classification
Identification
An intraluminal artery stripper is a device used to perform an endarterectomy (removal of plaque deposits from arterisclerotic arteries.)
Predicate Devices
TurboHawk Peripheral Plaque Excision System (K111723)
TurboHawk Peripheral Plaque Excision System (K103618)
Reference Devices
SpiderFX Embolic Protection Device
Submission Summary (Full Text)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
October 16, 2014
Covidien, LLC c/o Julie Underdahl Senior Regulatory Affairs Specialist 3033 Campus Drive Plymouth, MN 55441-2651
Re: K141801
Trade/Device Name: HawkOne Directional Atherectomy System Regulation Number: 21 CFR 870.4875 Regulation Name: Intraluminal Artery Stripper Regulatory Class: Class II Product Code: MCW Dated: September 15, 2014 Received: September 16, 2014
Dear Ms. Underdahl:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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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 Small Manufacturers, International and Consumer Assistance at its tollfree 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" (21CFR 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
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance 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.
of Surveillance and Biometrics/Division of Postmarket Surveillance.
Sincerely yours,
# Kenneth J. Cavanaugh -S
for
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known)
Device Name
HawkOne Directional Atherectomy System
K141801
Indications for Use (Describe)
The HawkOne Directional Atherectomy System is intended for use in atherectomy of the peripheral vasculature. The HawkOne catheter is indicated for use in conjunction with the SpiderFX Embolic Protection Device in the treatment of severely calcified lesions. The HawkOne catheter is NOT intended for use in the coronary, carotid, iliac or renal vasculature.
Type of Use (Select one or both, as applicable)
2 Prescription Use (Part 21 CFR 801 Subpart D)
_ Over-The-Counter Use (21 CFR 801 Subpart C)
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# 510(k) Summary
## HawkOne™ Directional Atherectomy System
This 510(k) summary is being submitted in accordance with the requirements of 21 C.F.R § 807.92.
#### 1. Submitter Information
| Applicant | Covidien llc<br>4600 Nathan Lane N<br>Plymouth, MN 55441-2651<br>Tel: 763-398-7000<br>Fax: 763-591-3248 |
|----------------|---------------------------------------------------------------------------------------------------------|
| Contact Person | Julie Underdahl<br>Senior Regulatory Affairs Specialist |
| Date Prepared | July 2, 2014 |
#### 2. Subject Device
| Device Trade Name | HawkOne Directional Atherectomy System |
|----------------------|-------------------------------------------------------------------|
| Device Common Name | Catheter, Peripheral, Atherectomy |
| Classification Name | Intraluminal Artery Stripper<br>21 CFR 870.4875, Product Code MCW |
| Classification Panel | Cardiovascular |
#### 3. Predicate Devices
| Device Trade Name | TurboHawk™ Peripheral Plaque Excision System |
|-----------------------|----------------------------------------------|
| 510(k) Number | K111723 |
| 510(k) Clearance Date | October 27, 2011 |
| Device Trade Name | TurboHawk™ Peripheral Plaque Excision System |
| 510(k) Number | K103618 |
| 510(k) Clearance Date | January 5, 2011 |
### 4. Device Description
The HawkOne™ directional atherectomy system (HawkOne catheter and cutter driver) is designed for the treatment of de novo and restenotic atherosclerotic calcified and non-calcified lesions located in native peripheral arteries. When used in complex, hard, calcified lesions, the HawkOne catheter should be paired with the SpiderFX™ embolic protection device to mitigate risk of distal embolization that may be generated by the breakdown of heavily calcified plaque. The HawkOne catheter consists of a flexible shaft designed to track over a 0.014" guidewire. At the distal end of the HawkOne catheter is a small cutting assembly comprised of a rotating inner
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blade contained within a tubular housing. The proximal end of the HawkOne catheter contains a connector and cutter positioning lever (thumb switch) designed to fit into the cutter driver. The cutter driver (catalog number H1-14550) is a battery driven, internally powered device, designed to power the HawkOne directional atherectomy catheter. For information about the SpiderFX embolic protection device, reference the Instructions for Use provided with the device.
The HawkOne directional atherectomy system has two switches: 1) the cutter driver main power switch and 2) the HawkOne catheter thumb switch. The cutter driver main power switch supplies power to the device when turned On. The HawkOne catheter thumb switch activates the drive shaft and engages the cutter when pulled proximally to the On position. With the cutter engaged, the HawkOne catheter is slowly advanced across the lesion, shaving occlusive material from the artery. The excised tissue is captured and stored in the tip of the device. The cutting process is completed by advancing the HawkOne catheter thumb switch distally, deactivating the drive shaft and disengaging the cutter. The HawkOne catheter thumb switch is fully advanced distally to the Off position in order to pack the excised plaque into the tip. This cutting sequence is repeated as necessary to achieve the desired degree of plaque excision.
### 5. Indications for Use
The HawkOne Directional Atherectomy System is intended for use in atherectomy of the peripheral vasculature. The HawkOne catheter is indicated for use in conjunction with the SpiderFX Embolic Protection Device in the treatment of severely calcified lesions. The HawkOne catheter is NOT intended for use in the coronary, carotid, iliac or renal vasculature.
#### 6. Comparison of Technological Characteristics
The proposed HawkOne Directional Atherectomy System is substantially equivalent to the currently marketed TurboHawk Peripheral Plaque Excision Systems (K111723 and K103618). The proposed and predicate devices share the following technological characteristics:
- Intended Use
- Fundamental scientific technology ●
- Principles of Operation ●
- . Conditions of Use
- Packaging Materials
- Sterilization site, method, parameters, and sterility assurance level
Additionally, the indications for use, labeling, device materials, and manufacturing site and methods are similar between the proposed and marketed devices.
#### 7. Performance Testing Summary
To demonstrate substantial equivalence of the proposed HawkOne Directional Atherectomy System to the predicate device, bench testing was performed.
Using internal Risk Analysis procedures, the following tests were performed:
- . Device Inspections
- Urge Force ●
- Cycle and Life
- Cutter Height
- Tracking Force ●
- . Repeated Cutter Spin Down and Packing
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- Shaft Torque Tests ●
- Carbide Edge Attachment
- DFT Torque and Pressure Tests
- Device Tensile Tests ●
- . Catheter and Cutter Driver Interaction
- . Embolization
- . Cut Mass Per Pass (Tissue Removal Rate)
- Tissue Removal Cycles
- Package Integrity
- . Biocompatibility
The results from these tests demonstrate that the technological characteristics and performance criteria of the HawkOne Directional Atherectomy System are comparable to the predicate device and that the HawkOne Directional Atherectomy System performs in a manner equivalent to the predicate device currently on the market.
#### 8. Conclusions
Based on the intended use, technological characteristics, safety and performance testing included in this submission, Covidien considers the proposed HawkOne Directional Atherectomy System to be substantially equivalent to the currently marketed TurboHawk Peripheral Plaque Excision Systems (K11723 and K103618).
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.