K152181 · Spectranetics, Inc. · MCW · Nov 12, 2015 · Cardiovascular
Device Facts
Record ID
K152181
Device Name
Turbo-Power Laser Atherectomy Catheter
Applicant
Spectranetics, Inc.
Product Code
MCW · Cardiovascular
Decision Date
Nov 12, 2015
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.4875
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Turbo-Power™ Laser Atherectomy Catheter is indicated for laser atherectomy of de novo or restenotic lesions in native infrainguinal arteries and for the treatment of femoropopliteal artery in-stent restenosis (ISR) in bare nitinol stents, with adjunctive Percutaneous Transluminal Angioplasty (PTA).
Device Story
Turbo-Power Laser Atherectomy Catheter is a sterile, single-use peripheral atherectomy device used with the CVX-300 Excimer Laser System. It consists of a catheter subassembly and a motor drive unit (MDU). The catheter features optical fibers arranged around a 0.018" guidewire lumen, a hydrophilic-coated working length, and a radiopaque marker band. The device is operated by a physician in a clinical setting. It transmits ultraviolet energy from the CVX-300 laser to the target lesion to photoablate atheroma, fibrosis, calcium, and thrombus via molecular bond disruption without thermal damage. The MDU mechanizes the rotation process, improving ease of use compared to manual systems. By recanalizing diseased vessels, the device facilitates lumen enlargement, aiding in the treatment of peripheral artery disease.
Clinical Evidence
No new clinical data was required. Substantial equivalence is supported by leveraging clinical studies of predicate devices (Turbo-Elite/Turbo-Tandem). The EXCITE trial (prospective randomized controlled) compared ELA+PTA vs. PTA alone for femoropopliteal ISR, meeting primary safety (freedom from MAE at 30 days) and efficacy (freedom from TLR at 6 months) endpoints. The PATENT and CELLO studies (prospective registries) evaluated safety and performance in PAD and ISR, demonstrating procedural success and low MAE rates through 6-month follow-up.
Technological Characteristics
Catheter subassembly with optical fibers, 0.018" guidewire lumen, stainless steel torque wire, and hydrophilic coating. Radiopaque marker band for visibility. Energy source: CVX-300 Excimer Laser (ultraviolet). Mechanized rotation via Motor Drive Unit (MDU). Single-use, sterile. No specific ASTM material standards cited.
Indications for Use
Indicated for patients with de novo or restenotic lesions in native infrainguinal arteries and femoropopliteal artery in-stent restenosis (ISR) in bare nitinol stents. Requires adjunctive PTA.
Regulatory Classification
Identification
An intraluminal artery stripper is a device used to perform an endarterectomy (removal of plaque deposits from arterisclerotic arteries.)
Predicate Devices
Turbo-Tandem Laser Guide Catheter with Laser Atherectomy Catheter (K140775)
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#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
November 12, 2015
Spectranetics, Inc. Ms. Priscila Tapia Regulatory Specialist 9965 Federal Drive Colorado Springs, Colorado 80921
Re: K152181
Trade/Device Name: Turbo-Power Laser Atherectomy Catheter Regulation Number: 21 CFR 870.4875 Regulation Name: Intraluminal Artery Stripper Regulatory Class: Class II Product Code: MCW Dated: October13, 2015 Received: October 14, 2015
Dear Ms. Tapia:
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 devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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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 vours
Mitchell Stein
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) K152181
Device Name
Turbo-Power™ Laser Atherectomy Catheter
#### Indications for Use (Describe)
Turbo-Power™ Laser Atherectomy Catheted for laser atherectomy of de novo or restenotic lesions in native infrainguinal arteries and for the treatment of femoropopliteal artery in-stent restenosis (ISR) in bare nitinol stents, with adjunctive Percutaneous Transluminal Angioplasty (PTA).
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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#### FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
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Image /page/3/Picture/0 description: The image contains the Spectranetics logo with the tagline "Always Reaching Farther" underneath. The logo is in blue and features a stylized design. Above the logo, the text "K152181" is present.
# 510(k) Summary
This 510(k) summary was prepared in accordance with 21 CFR 807.92(c) Prepared on 07 October 2015
| 510(k) Submitter / Holder: | Spectranetics<br>9965 Federal Drive<br>Colorado Springs, CO 80921.3617 |
|----------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Establishment Registration No: 3007284006 |
| Contact: | Ms. Priscila Tapia<br>Regulatory Affairs Specialist<br>Office: 719.447.2587<br>Mobile: 719.393.5354<br>Fax: 719.447.2070<br>Email: Priscila.Tapia@spnc.com |
### Subject Device
| 510(k) Number: | K152181 |
|----------------------------|-----------------------------------------------|
| Device Trade Name: | Turbo-Power™ Laser Atherectomy Catheters |
| Device Common Name: | Laser Atherectomy Catheter |
| Device Class: | II |
| Classification Regulation: | 21 CFR 870.4875, Intraluminal Artery Stripper |
| Regulation Description: | Cardiovascular |
| Product Code: | MCW |
| 510(k) Type: | Traditional |
| Model Numbers: | 423-050 |
### Predicate Devices
The Turbo-Power Laser Atherectomy Catheter is being compared to the following legally marketed predicate devices:
| Turbo-Tandem | |
|---------------------|----------------------------------------------------------------------|
| 510(k) Number: | K140775 |
| Manufacturer: | The Spectranetics Corporation |
| Trade Name: | Turbo-Tandem Laser Guide Catheter with<br>Laser Atherectomy Catheter |
| Device Common Name: | Percutaneous Laser Ablation Catheter |
| Turbo-Elite | |
| 510(k) Number: | K140775 |
| Manufacturer: | The Spectranetics Corporation |
| Trade Name: | Turbo-Elite Laser Atherectomy Catheter |
| Device Common Name: | Laser Atherectomy Catheter |
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### Intended and Indications for Use
Turbo-Power™ Laser Atherectomy Catheter is indicated for laser atherectomy of de novo or restenotic lesions in native infrainquinal arteries and for the treatment of femoropopliteal artery in-stent restenosis (ISR) in bare nitinol stents, with adjunctive Percutaneous Transluminal Angioplasty (PTA).
K152181
### Device Description
The Turbo-Power System (Laser Atherectomy Catheter) is a laser atherectomy device designed for use with the CVX-300™ Excimer Laser System. The Turbo-Power Laser Atherectomy Catheter is a sterile, single use, prescription only device used for peripheral atherectomy.
Turbo-Power is used to directionally ablate infrainguinal concentric and eccentric lesions in vessels that are 3.5mm or greater in diameter. Turbo-Power Laser Atherectomy Catheter is comprised of 2 subassemblies:
- 1. Catheter Subassembly
- 2. Motor Drive Unit (MDU) Subassembly
The working length of the Turbo Power Laser Atherectomy Catheter is constructed of multiple optical fibers arranged eccentrically around a 0.018" (0.46 mm) quidewirecompatible lumen. The PTFE guidewire lumen tip is attached to a stainless steel torque wire which is connected to the MDU at the proximal end of the working length. The multifiber laser catheter transmits ultraviolet energy from the Spectranetics CVX-300 Excimer Laser System through the tip of the laser to an obstruction in the patient's artery. The outer surface of the laser catheter working length is hydrophilic-coated, and the distal tip of the catheter contains a radiopaque marker band for in situ visibility. The ultraviolet energy transmitted from the CVX-300 laser system is used to photoablate multiple morphology lesions which mav be comprised of atheroma, fibrosis, calcium, and thrombus, thus recanalizing diseased vessels. Photoablation is the process by which energy photons cause molecular bond disruption at the cellular level without thermal damage to surrounding tissue.
#### Technological Characteristics
The debulking performance of the Turbo-Power was developed to be similar to the Turbo-Tandem system, while maintaining the ability to cross difficult lesion morphologies, un-crossable with a quidewire, similar to the Turbo-Elite laser catheter, The Turbo-Power allows physicians to use a single tool for the full atherectomy procedure. To improve ease of use, the Turbo-Power device has mechanized the rotation process of the Turbo-Tandem system. In addition, the distal tip design of the subject device has been simplified by removing the tapered biasing tip of the Turbo-Tandem from the Turbo-Power design.
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### Performance Data
The following testing was conducted to validate and verify that the subject device met all specifications:
K152181
- Simulated Use Testing o
- Functional Testing ●
- o Physical Testing
- o Laser Testing
- Software Testing ●
- Sterility/Biocompatibility/Physiochemical Testing o
#### Pre-clinical and Clinical Data:
In addition to the design verification and validation tests, a pre-clinical GLP study was conducted to compare the usability and procedural safety of the Turbo-Power and Turbo-Tandem laser catheters, and support this premarket notification. New clinical data was not required to demonstrate substantial equivalence. The following clinical studies were leveraged to support the indications for use for Turbo-Power:
- Clinical Data: ●
- o The EXCITE trial evaluated the safety and efficacy of Excimer Laser Atherectomy (ELA) using the Spectranetics Turbo Elite Laser Ablation Catheter and the Spectranetics Turbo-Tandem Laser Guide Catheter with Laser Atherectomy Catheter with adjunctive percutaneous transluminal angioplasty (PTA) in comparison with PTA alone in the treatment of femoropopliteal bare nitinol in-stent restenosis in vessels ≥5mm. This trial was a prospective randomized controlled trial performed respectively in a 2:1 randomization scheme. The primary safety hypothesis was that freedom from a major adverse event (MAE) through 30 days with ELA+PTA, which included all-cause death, maior amputation in the target limb, or target lesion revascularization (TLR), would be non-inferior to PTA. The primary efficacy hypothesis was that freedom from TLR through 6 months with ELA+PTA would be superior to PTA. Both primary safety and efficacy hypothesis were met. There was no statistical difference in major amputation rates, mortality, serious adverse events, or adverse events between groups.
- The PATENT study was a multicenter prospective registry involving 5 EU o centers. The PATENT study was intended to evaluate the safety and performance of the Spectranetics peripheral atherectomy laser catheters (Turbo Elite) used in conjunction with Turbo-Booster catheters for the treatment of in-stent restenosis of nitinol stents implanted in the femoropopliteal arteries.
- The CELLO (CLiRpath Excimer Laser System to Enlarge Lumen o Openings) Study, was intended to study the safety and performance of the Turbo-Elite used in conjunction with Turbo-Booster catheters for the treatment of Peripheral Artery Disease (PAD). The primary effectiveness
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endpoint was ≥ 20 percent reduction in percent diameter stenosis, on average, as assessed by an angiographic core lab. The secondary effectiveness endpoint was acute procedural success (visual assessment of final residual stenosis). The primary safety endpoint measured was the occurrence of major adverse events, defined as clinical perforation, major dissection requiring surgery, major amputation, cerebrovascular accidents (CVA), myocardial infarction, and death at the time of procedure, through six (6) months. The study demonstrated that the Turbo-Booster is safe for the treatment of patients with stenoses and occlusions crossable by a guidewire in the superficial femoral artery and popliteal artery as evident by no occurrence of major adverse events through the six-month followup.
#### Substantial Equivalence
Based on the similarities in design between the subject and predicate devices currently in use, and the performance and pre-clinical data, the use of the Turbo-Power System for the proposed indication does not raise new questions related to safety and effectiveness compared with the predicates. Therefore Turbo-Power is substantially equivalent to Turbo-Tandem and Turbo-Elite.
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.