K120644 · Merit Medical Systems, Inc. · DQX · Sep 19, 2012 · Cardiovascular
Device Facts
Record ID
K120644
Device Name
MERIT HYDROPHILIC GUIDE WIRE
Applicant
Merit Medical Systems, Inc.
Product Code
DQX · Cardiovascular
Decision Date
Sep 19, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.1330
Device Class
Class 2
Indications for Use
The Merit Hydrophilic Guide Wire is intended to facilitate the placement of devices during diagnostic and interventional procedures.
Device Story
The Merit Hydrophilic Guide Wire is a catheter guide wire consisting of a jacketed core wire with a hydrophilic coating. It is available in various lengths with straight or angled tip configurations. The device is used by clinicians in diagnostic and interventional settings to facilitate the placement of other medical devices within the vasculature. The hydrophilic coating reduces friction, aiding navigation through vessels. The device is a sterile, single-use tool.
Clinical Evidence
Bench testing only. No clinical data provided. Testing included coating adherence/integrity, catheter compatibility, surface testing, fracture testing, flex testing, size designation, biocompatibility (ISO 10993-1, -5, -7, -18, ASTM F756-08), and accelerated aging (ASTM F1980-07).
Technological Characteristics
Jacketed core wire with hydrophilic coating. Available in straight and angled tip configurations. Sterilized via ethylene oxide (ISO 11135-1). Biocompatibility per ISO 10993 series. Mechanical testing per FDA Coronary and Cerebrovascular Guide Wire Guidance and ISO 11070.
Indications for Use
Indicated for use in patients undergoing diagnostic and interventional procedures to facilitate the placement of medical devices.
Regulatory Classification
Identification
A catheter guide wire is a coiled wire that is designed to fit inside a percutaneous catheter for the purpose of directing the catheter through a blood vessel.
Special Controls
*Classification.* Class II (special controls). The device, when it is a torque device that is manually operated, non-patient contacting, and intended to manipulate non-cerebral vascular guide wires, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image shows the logo for Merit Medical. The logo consists of a stylized "M" symbol on the left, followed by the words "MERIT MEDICAL" in a bold, sans-serif font. The word "MEDICAL" is outlined in white, while the rest of the logo is in black. There is a registered trademark symbol to the right of the word "MEDICAL".
.
Merit Medical Ireland Ltd., KV20644
Parkmore Business Park West, Galway, Ireland.
SEP 1 9 2012
int Tel: +353 (0) 91 703 700 Int Fax: +353 {0} 91 771 888
Web: www.merit.com
## Section 5
### 510(k) Summary
| General<br>Provisions | Submitter Name:<br>Address:<br>Telephone Number:<br>Fax Number:<br>Contact Person:<br>Registration Number: | Merit Medical Systems, Inc.<br>1600 West Merit Parkway,<br>South Jordan, UT 84095<br>(801) 208-4349<br>(801) 253-6967<br>Stephanie Erskine<br>1721504 |
|-----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Correspondent Name:<br>Address:<br>Telephone Number:<br>Fax Number:<br>Contact Person:<br>Date of Preparation:<br>Registration Number: | Merit Medical Ireland Ltd.<br>Parkmore Business Park,<br>Galway, Ireland<br>(353) 91 703 761<br>(353) 91 771 888<br>Mark Mullaney<br>March 1, 2012<br>9616662 |
| Subject<br>Device | Trade Name:<br>Common/Usual Name:<br>Classification Name: | Merit Hydrophilic Guide Wire<br>Hydrophilic Guide Wire<br>Catheter Guide Wire |
| Predicate<br>Devices | Trade Name:<br>Classification Name:<br>Premarket Notification:<br>Manufacturer: | Merit Hydrophilic Guide Wire<br>Catheter Guide Wire<br>K092303<br>Merit Medical Systems, Inc. |
| Classification | Class II<br>21 CFR § 870.1330, 74 DQX<br>Division of Cardiovascular Devices | |
| Intended Use | The Merit Hydrophilic Guide Wire is intended to facilitate the placement<br>of devices during diagnostic and interventional procedures. | |
| Device<br>Description | The Merit Hydrophilic Guide Wire consists of a jacketed core wire with a<br>hydrophilic coating applied to the jacket. The wire will be offered with<br>straight and angled tip configurations in various lengths. | |
Directors: F. Lampropoulos (American), R. Perry (American), K. Stanger (American), M. Butter (Irish) Registered in Dublin, Ireland No. 210890. Registered Office: 25/28 North Wall Quay, Dublin 2.
{1}------------------------------------------------
#### Comparison to Predicate ·
Technological characteristics of the subject Merit Hydrophilic Guide Wire are substantially equivalent to those of the predicate, the Merit Hydrophilic Guide Wire {K092303]. The differences between the devices relate to the hydrophilic coating process. The guide wire design remains unchanged.
{2}------------------------------------------------
No performance standards have been established under Section 514 of the Food, Drug and Cosmetic Act for these devices. However, a battery of tests was performed according to protocols based on the requirements of industry standards and guidances and were shown to meet the acceptance criteria that were determined to demonstrate the safety and efficacy of the device.
Where appropriate, the tests were based on the requirements of the following documents:
- . FDA Guidance Coronary and Cerebrovascular Guide Wire Guidance January 1995.
- . ISO 11070:1998, Sterile Single-Use Intravascular Catheter Introducers.
- . ISO 11135-1:2007, Sterilization of health care products - Ethylene oxide - Part 1: Requirements for the development, validation, and routine control of a sterilization process for medical devices.
- ASTM F756-08 Standard Practice for Assessment of Hemolytic . Properties of Materials
- . ASTM F1980-07 Standard Guide for Accelerated Aging of Sterile Barrier Systems for Medical Devices.
- ISO 10993-1:2009, Biological Evaluation of Medical Devices Part 1: . Evaluation and Testing within a risk management process, and the FDA Modified ISO 10993 Test Profile FDA Memo G95-1.
- 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 10993-18:2005 Biological Evaluation of Medical Devices -. Part 18: Chemical Characterization of Materials
The Merit Hydrophilic Guide Wire was compared to the predicate device for various performance attributes that demonstrate the safety or efficacy of the device. Differences in materials between the modified device and the cleared device [K092303] raised no issues of safety and effectiveness. The hydrophilic coating process was modified. The coating solution is made with the identical raw materials, equipment, and processes used for the preparation of the predicate coating solution.
The following is a list of all significant testing that was successfully completed:
- . Coating Adherence/Integrity
- Catheter Compatibility .
- Surface .
- Fracture Test .
- . Flex Test
- Size Designation .
- Biocompatibility .
- Chemical Characterization .
# Safety & ● Performance Tests
{3}------------------------------------------------
# Summary of Substantial Equivalence
Based on the indications for use, design, safety, and performance testing, the subject Merit Hydrophilic Guide Wire meets the requirements that are considered essential for its intended use and is substantially equivalent to the predicate device, the Merit Hydrophilic Guide Wire manufactured by Merit Medical Systems, Inc. Differences between the two devices do not raise any significant issues of safety or effectiveness.
{4}------------------------------------------------
Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the circle is an abstract symbol that resembles an eagle or bird in flight. The symbol is composed of three curved lines that form the body and wings of the bird.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
SEP 19 2012
Merit Medical Systems, Inc. Mr. Mark Mullaney Regulatory Affairs Manager Parkmore Business Park West, Galway, Ireland
Re: K120644
Trade/Device Name: Merit Hydrophilic Guide Wire Regulation Number: 21 CFR 870.1330 Regulation Name: Catheter Guide Wire Regulatory Class: Class II Product Code: DQX Dated: September 10, 2012 Received: September 12, 2012
Dear Mr. Mullaney:
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.
{5}------------------------------------------------
Page 2 - Mr. Mark Mullaney
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 or ury 1 vith 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 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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. 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 of Surveillance and Biometrics/Division of Postmarket Surveillance.
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/Resourcesfor You/Industry/default.htm.
Sincerely yours,
CMA. Hellehn
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{6}------------------------------------------------
Merit Medical Systems, Inc. Merit Hydrophilic Guide Wire Premarket Notification 510(k)
#### Section 4
### Indications for Use Statement
K120644
510(k) Number (if known):
Device Name: Merit Hydrophilic Guide Wire
Indications for Use:
The Merit Hydrophilic Guide Wire is intended to facilitate the placement of devices during diagnostic and interventional procedures.
Prescription Use _ × (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
. S. Allelu
diovascular Devices
510(k) Number K120644
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.