K161392 · Merit Medical Systems, Inc. · KTI · Sep 1, 2016 · Ear, Nose, Throat
Device Facts
Record ID
K161392
Device Name
Elation Pulmonary Balloon Dilation
Applicant
Merit Medical Systems, Inc.
Product Code
KTI · Ear, Nose, Throat
Decision Date
Sep 1, 2016
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 874.4680
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Elation™ Pulmonary Balloon Dilation Catheter is intended to endoscopically dilate strictures of the trachea and bronchi.
Device Story
Multi-lumen catheter with distal dilation balloon; designed for use with endoscope working channel and 0.035-inch guidewire. Two redundant inflation lumens enable balloon inflation/deflation. Features include endoscopic and radiopaque marker bands for visualization and a glow-in-the-dark shaft tag indicating diameter/pressure. Used by clinicians in clinical settings to dilate airway strictures; provides mechanical dilation to improve airway patency. Benefits include relief of airway obstruction.
Clinical Evidence
Bench testing only. No clinical data. Performance testing included radiopacity, tip perforation, guidewire pushability, simulated insertion/withdrawal, balloon diameter, deflation time, burst/leakage, tensile strength, pushability, kink/kink recovery, and high tensile load balloon deflation. Biocompatibility testing (cytotoxicity, sensitization, irritation) and sterilization validation (EO) performed per ISO standards.
Technological Characteristics
Multi-lumen catheter; Pebax balloon material; 7.5F diameter; 100 cm length; 6-20 mm balloon diameters. Compatible with 2.8 mm endoscope working channels and 0.035 in guidewires. Radiopaque and endoscopic markers. Sterilized via ethylene oxide (ISO 11135:2014). Standards: ISO 594-1/2, ISO 10555-1/4, ASTM F640-12, ISO 10993 series.
Indications for Use
Indicated for endoscopic dilation of tracheal and bronchial strictures in patients requiring airway management.
Regulatory Classification
Identification
A bronchoscope (flexible or rigid) and accessories is a tubular endoscopic device with any of a group of accessory devices which attach to the bronchoscope and is intended to examine or treat the larynx and tracheobronchial tree. It is typically used with a fiberoptic light source and carrier to provide illumination. The device is made of materials such as stainless steel or flexible plastic. This generic type of device includes the rigid ventilating bronchoscope, rigid nonventilating bronchoscope, nonrigid bronchoscope, laryngeal-bronchial telescope, flexible foreign body claw, bronchoscope tubing, flexible biopsy forceps, rigid biopsy curette, flexible biopsy brush, rigid biopsy forceps, flexible biopsy curette, and rigid bronchoscope aspirating tube, but excludes the fiberoptic light source and carrier.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
September 1, 2016
Merit Medical Systems, Inc. Mr. David Thomas Principal Regulatory Affairs Specialist 1600 West Merit Parkway South Jordan, UT 84095
Re: K161392
Trade/Device Name: Elation Pulmonary Balloon Dilation Catheter Regulation Number: 21 CFR 874.4680 Regulation Name: Bronchoscope (Flexible or Rigid) and Accessories Regulatory Class: Class II Product Code: KTI Dated: August 3, 2016 Received: August 4, 2016
Dear Mr. Thomas:
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.
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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 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.
# Eric A. Mann -S
for Malvina B. Eydelman, M.D. Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K161392
Device Name
Elation(TM) Pulmonary Balloon Dilation Catheter
Indications for Use (Describe)
The Elation™ Pulmonary Balloon Dilation Catheter is intended to endoscopically dilate strictures of the trachea and bronchi.
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)
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# K161392 - 510(k) Summary
| General<br>Provisions | Submitter Name:<br>Address:<br>Telephone Number:<br>Fax Number:<br>Contact Person:<br>Date of Preparation:<br>Registration Number: | Merit Medical Systems, Inc.<br>1600 West Merit Parkway<br>South Jordan, UT 84095<br>(801) 316-4956<br>(801) 253-6982<br>David Thomas<br>August 29, 2016<br>1721504 |
|-----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Subject Device | Trade Name:<br>Common/Usual Name:<br>Classification Name: | Elation™ Pulmonary Balloon Dilation<br>Catheter<br>Pulmonary Balloon Dilation Catheter<br>Bronchoscope (flexible and rigid) and<br>accessories |
| Predicate Device | Trade Name:<br>Classification Name:<br>Premarket Notification:<br>Manufacturer: | CRE™ Pulmonary Balloon Dilatation Catheter<br>Bronchoscope (flexible and rigid) and<br>accessories<br>K023337<br>Boston Scientific Corporation |
| Classification | Class II<br>21 CFR § 874.4680<br>FDA Product Code: KTI<br>Review Panel: Ear, Nose & Throat | |
| Intended Use | The Elation™ Pulmonary Balloon Dilation Catheter<br>is intended to be used to endoscopically dilate strictures of the trachea<br>and bronchi. | |
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The Elation™ Pulmonary Balloon Dilation Catheter is a multi-lumen catheter with a dilation balloon on the distal tip. The catheter is designed to pass through the working channel of an endoscope and accept a 0.035 in (0.89 mm) guidewire through its guidewire lumen. Two redundant inflation lumens are used to inflate and deflate the dilation balloon.
The dilation balloon will be available in a 7.5F catheter with a length of Device 100 cm, balloon lengths of 2.0 cm, 3.0 cm or 5.5 cm and in six balloon Description diameter ranges from 6 mm to 20 mm. Each balloon size will inflate to three different diameters for the specified inflation pressures. The balloon will be identifiable with both endoscopic and radiopaque marker bands. A glow-in-the-dark tag that can be read in low light conditions is attached to the catheter shaft. The tag indicates diameter and corresponding pressure of the balloon.
> The balloon will be available in eleven configurations of multiple lengths and diameters. The balloon will be identifiable with both endoscopic and fluoroscopic markers and will be provided sterile.
Comparison to Predicate Device
The Elation™ Pulmonary Balloon Dilation Catheter has the same technological features as the CRE™ Pulmonary Balloon Dilatation Catheter by Boston Scientific Co.( K023337). Both balloons are multistage that come in three distinct diameters ranging from 6 to 20 mm for six balloon sizes. Both catheters pass through a minimum 2.8 mm working channel endoscope. Both systems utilize a 0.035 inch floppy tip quidewire. The balloons for the CRE™ Balloon and the Elation™ Pulmonary Balloon Dilation Catheter are both manufactured from Pebax material. The primary differences are that the Elation™ Pulmonary Balloon Dilation Catheter is available in 2.0 cm, 3.0 cm and 5.5 cm balloon length sizes where the CRE™ Pulmonary Balloon Dilatation Cather has only the 5.5 cm and 3.0 cm sizes and the catheter length for the Elation™ Pulmonary Balloon Dilation Catheter is 100 cm instead of the 75 cm length for which the CRE™ Pulmonary Balloon Dilatation Catheter is available.
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No performance standards have been established under Section 514 of the Food, Druq and Cosmetic Act for these devices. Performance testing of the subject Elation™ Pulmonary Balloon Dilation Catheter was conducted based on the risk analysis and based on the requirements of the following international standards and guidance documents:
ISO 594-1: 1986 (E) Conical fittings with a 6% (Luer) taper for svringes, needles, and certain other medical equipment - Part 1: General Requirements
ISO 594-2: 1998 (E) Conical fittings with a 6% (Luer) taper for syringes, needles, and certain other medical equipment – Part 2: Lock fittings
ISO 10555-1: 2013 - Intravascular catheters - Sterile and single use catheters - Part 1: General Requirements
ISO 10555-4: 2013 - Intravascular catheters - Sterile and single use catheters - Part 4: Balloon dilatation catheters
Safety & Performance Tests
ASTM F 640 – 12 Standard Test Methods for Determining Radiopacity for Medical Use
Class II Special Controls Guidance Document for Certain Percutaneous Transluminal Coronary Angioplasty (PTCA) Catheters, September 8, 2010.
ISO 11135:2014, Sterilization of health care products – Ethylene oxide-Requirements for the development, validation and routine control of a sterilization process for medical devices
ISO 10993-1:2009. Biological Evaluation of Medical Devices Part 1: Evaluation and Testing within a risk management process.
FDA guidance Required Biocompatibility Training and Toxicology Profiles for Evaluation of Medical Devices, May 1, 1995
ISO 10993-5:2009, Biological evaluation of medical devices – Part 5: Tests for in vitro cytotoxicity
ISO 10993-7:2008. Biological Evaluation of Medical Devices – Part 7 Ethylene Oxide sterilization residuals
ISO 10993-10:2010, Biological evaluation of medical devices – Part 10: Tests for irritation and skin sensitization.
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AAMI/ANSI/ISO 11607-1:2006. Packaging for terminally sterilized medical devices – Part 1 – Requirements for materials, sterile barrier systems and packaging systems (Sterility)
ASTM D4169-09, Standards Practice for Performance Testing of Shipping Containers and Systems (Sterility)
ISO 2233 (2000), Packaging - Complete, filled transport packages and unit loads - conditions for testing
# Performance Testing-Bench
- Radiopacity ●
- . Tip Perforation
- Guidewire Pushability .
- Simulated Bronchoscope Catheter Insertion and Withdrawal
- Balloon Diameter ●
- Balloon Deflation Time
- . Balloon Burst / Freedom from Leakage
- Distal Catheter Joints Tensile
- . Proximal Catheter Joints Tensile
- . Catheter Pushability
- Catheter Kink
- Kink Recovery ●
- High Tensile Load Balloon Deflation ●
## Sterilization Validation
The Elation™ Pulmonary Balloon Dilation Catheter will be sterilized using a validated 100% ethylene oxide (EO) sterilization process that is also used for other devices manufactured by Merit, including the predicate device. The EO sterilization cvcles employed by Merit Medical are validated by the half cycle / over-kill approach and meet the requirements of ISO 11135:2014 – Sterilization of health care products – Ethylene oxide-Requirements for the development, validation and routine control of a sterilization process for medical devices. Validation and annual revalidation have demonstrated a robust program that exceeds the minimum sterility assurance level of 10-6 as well as limiting residual sterilant levels to within limits established in EN ISO 10993-7:2008 - Biological Evaluation of Medical Devices, Part 7: Ethylene Oxide Sterilization Residuals.
Biological indicators, which are included with each sterilization lot. are sterility tested as part of the product release process.
Safetv & Performance Tests cont.
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## Shelf Life Validation
Merit determines shelf life for the packaging and device based on accelerated aging studies conducted according to the Arrhenius Model (Q10). An initial shelf life of 6 months was selected for the subject Elation™ Pulmonary Balloon Dilation Catheter based on the results of the accelerated aging studies. These studies were performed according to approved protocols and procedures following EO sterilization. The accelerated aging testing supported a 6-month shelf life of the product. Upon successful completion of requisite accelerated aging studies, the Elation™ Pulmonary Balloon Dilation Catheter may be labeled with a longer shelf life. Accelerated aging will be supported by real time aging studies which are ongoing.
# Packaging Performance
Sterile barrier maintenance was tested after exposure to simulated transportation and storage conditions up to 3 vears of accelerated and real time aging. All samples tested passed the tests listed below.
- Seal Peel Strength
- Burst Strength
- Visual Inspection ●
- Bubble Emission ●
- Dye Penetration ●
## Biocompatibility
The biocompatibility evaluation for the Elation™ Pulmonary Balloon Dilation Catheter was conducted in accordance with the FDA Blue Book Memorandum #G95-1 "Use of International Standard ISO-10993, 'Biological Evaluation of Medical Devices Part 1: Evaluation and Testing," May 1, 1995, and International Standard ISO 10993-1 "Biological Evaluation of Medical Devices - Part 1: Evaluation and Testing Within a Risk Management Process," as recognized by FDA. The battery of testing included the following tests:
- Cytotoxicity
- Sensitization ●
- Irritation ●
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| Summary of<br>Substantial<br>Equivalence | Based on the indications for use, design, safety and performance<br>testing, the subject Elation™ Pulmonary Balloon Dilatation Catheter<br>meets the requirements that are considered essential for its intended<br>use and is substantially equivalent to the predicate device, the CRE™<br>Pulmonary Balloon Dilatation Catheter, K023337. |
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Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
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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.
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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.
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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.
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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.