K152116 · Merit Medical Systems, Inc. · DYB · Aug 27, 2015 · Cardiovascular
Device Facts
Record ID
K152116
Device Name
5.5 F Worley Advanced LVI Lateral Vein Introducer
Applicant
Merit Medical Systems, Inc.
Product Code
DYB · Cardiovascular
Decision Date
Aug 27, 2015
Decision
SESE
Submission Type
Special
Regulation
21 CFR 870.1340
Device Class
Class 2
Indications for Use
For the introduction of various types of pacing or defibrillator leads and catheters.
Device Story
The 5.5 F Worley Advanced LVI Lateral Vein Introducer is a single-use catheter introducer designed to access the coronary venous system. It functions as a conduit for guidewires, pacing/defibrillator leads, and catheters, or for contrast medium delivery. The device features a shaft with two stiffness segments, metal braid reinforcement, and a lubricious coating. The proximal end includes a hemostasis valve and a side-port with a 3-way stopcock for fluid/contrast infusion. The distal end features a radiopaque marker for fluoroscopic visualization. Used in clinical settings by cardiologists, the device facilitates sub-selective access to angulated lateral vein branches via various curve configurations. It is used either alone or in a telescopic assembly. The output is the physical placement of leads or catheters, which aids in cardiac rhythm management procedures, potentially benefiting patients requiring pacing or defibrillation therapy.
Clinical Evidence
No clinical data. Substantial equivalence is supported by bench testing, including dimensional tests, functional tests (e.g., pull force, valve housing integrity), simulated use tests (e.g., slitting, tip bending), and biocompatibility testing (cytotoxicity).
Technological Characteristics
Materials: Primarily polymers. Design: 5.5 F introducer with 2-segment stiffness, metal braid reinforcement, and lubricious coating. Features: Hemostasis valve, side-port with 3-way stopcock, radiopaque tip. Sterilization: Ethylene oxide (ISO 11135-1). Standards: ISO 11070, ISO 10993-1/7/17, ISO 11607-1, ISO 14971, ASTM D4169.
Indications for Use
Indicated for the introduction of pacing or defibrillator leads and catheters into the coronary venous system. Intended for use by trained cardiologists for short-term application (< 24 hours).
Regulatory Classification
Identification
A catheter introducer is a sheath used to facilitate placing a catheter through the skin into a vein or artery.
Predicate Devices
Coronary Sinus Guide and Lateral Vein Introducer Kits (K120158)
Submission Summary (Full Text)
{0}------------------------------------------------
Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three heads, representing the department's mission to protect the health of all Americans. The eagle is surrounded by a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA".
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
August 27, 2015
Merit Medical Systems, Inc. Alina Stubbs Regulatory Affairs Specialist II 65 Great Valley Parkway Malvern, Pennsylvania 19355
Re: K152116
Trade/Device Name: 5.5 F Worley Advanced LVI Lateral Vein Introducer Regulation Number: 21 CFR 870.1340 Regulation Name: Catheter Introducer Regulatory Class: Class II Product Code: DYB Dated: July 29, 2015 Received: July 30, 2015
Dear Alina Stubbs:
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
{1}------------------------------------------------
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,
Mitchell Stein
forBram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
Merit Medical Systems, Inc. 5.5 F Worley Advanced LVI Lateral Vein Introducer Special 510(k)
> DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
#### Indications for Use
510(k) Number (if known) K152116
#### Device Name
5.5 F Worley Advanced LVI Lateral Vein Introducer
Indications for Use (Describe)
For the introduction of various types of pacing or defibrillator leads and catheters.
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)
## PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
This section applies only to requirements of the Paperwork Reduction Act of 1995.
## *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimated on any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.
- Over-The-Counter Use
_ Over-The-Counter Use (21 CFR 801 Subpart C)
{3}------------------------------------------------
# 510(k) Summary
| General<br>Provisions | Correspondent Name:<br>Address:<br>Telephone Number:<br>Fax Number:<br>Contact Person:<br>Date of Preparation:<br>Registration Number: | Merit Medical Systems, Inc.<br>65 Great Valley Parkway<br>Malvern, PA 19355<br>(610) 651-5046<br>(801) 545-4285<br>Alina Stubbs<br>July 29, 2015<br>2529252 | |
|-----------------------|----------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--|
| Subject<br>Device | Trade Name:<br>Common/Usual Name:<br>Classification Name: | 5.5 F Worley Advanced LVI Lateral Vein<br>Introducer<br>Sheath Introducer<br>Introducer, Catheter (21 CFR §870.1340) | |
| Predicate<br>Device | Trade Name:<br>Classification Name:<br>Premarket Notification:<br>Manufacturer: | Coronary Sinus Guide and Lateral Vein<br>Introducer Kits<br>Introducer, Catheter (21 CFR §870.1340)<br>K120158<br>Merit Medical Systems, Inc.<br>65 Great Valley Parkway<br>Malvern, PA 19355<br>(formerly operating as<br>Thomas Medical Products, Inc.) | |
| Classification | Class II<br>21 CFR §870.1340<br>FDA Product Code: DYB<br>Review Panel: Cardiovascular | | |
| Intended Use | For the introduction of various types of pacing or defibrillator leads<br>and catheters. | | |
{4}------------------------------------------------
The 5.5 F Worley Advanced LVI Lateral Vein Introducer is intended to access the coronary venous system either alone or in a telescopic assembly with other devices. The 5.5 F Worley Advanced LVI Lateral Vein Introducer serve as a conduit to quide devices, including guidewires, pacemaker or defibrillator leads, and catheters, or to deliver contrast medium into specific branches of the coronary venous system. They have direct contact to the inner heart. 5.5 F Worley Advanced LVI Lateral Vein Introducers come with various curve configurations to facilitate sub-selective access to angulated lateral vein branches. 5.5 F Worley Advanced LVI Lateral Vein Introducers are designed as single use devices and for short term application (< 24 hours). Only medical doctors and medical personnel, who are well trained in cardiology, should apply these introducers.
The 5.5 F Worley Advanced LVI Lateral Vein Introducers have a Device shaft design with two (2) stiffness segmentations. The shaft is Description reinforced by a metal braid from the proximal end until approximately 0.130 inches from the distal end. The shaft is coated by a medicalgrade coating that provides enhanced lubricity when advanced through the Coronary Sinus Guide Introducer.
> The proximal end of the 5.5 F Worley Advanced LVI Lateral Vein Introducers are equipped with a hemostasis valve that reduces the risk of blood loss and air embolism and a side-port with 3-way stopcock to allow fluid infusion and contrast injection.
> There are various versions of the introducer curves that are used according to the anatomy of the present coronary vasculature. The distal soft tip has a radius on the outer diameter and the distal tip further contains a polymeric x-ray marker for enhanced visibility under fluoroscopy.
The materials of construction are primarily polymers.
{5}------------------------------------------------
| Summary of the technological characteristics of the modified device | |
|---------------------------------------------------------------------|--|
| compared to the predicate devices: | |
| | Technical<br>Characteristics | Predicate Device<br>K120158 | Subject Device |
|----------------------------|-----------------------------------------------------------|-------------------------------------------------------------|-------------------------------------------------------------|
| Comparison to<br>Predicate | Hemostasis valve<br>provided | Yes | Yes |
| | Compatible with<br>.038" guide wire | Yes | Yes |
| | Lengths: | 62 cm | 66cm |
| | French sizes: | 7 F I.D. | 5.5 F I.D. |
| | Curves: | 0 to 180 degree,<br>single or compound<br>curves | 0 to 180 degree,<br>single or compound<br>curves |
| | Sheath introducer<br>break-away<br>hemostasis valve | Yes | Yes |
| | Wire braid<br>reinforcement<br>completely<br>encapsulated | Yes | Yes |
| | Radiopaque tip | Yes | Yes |
| | Side port for infusion<br>and contrast<br>injection | Yes | Yes |
| | UV & heat<br>stabilizers | Yes | Yes |
| | Stiffness<br>segmentations | 3 | 2 |
| | Device Materials | The materials of<br>construction are<br>primarily polymers. | The materials of<br>construction are<br>primarily polymers. |
{6}------------------------------------------------
The 5.5 F Worley Advanced LVI Lateral Vein Introducer has been thoroughly tested through verification of product specifications and user requirements. The following quality assurance measures were applied during the development of the 5.5 F Worley Advanced LVI Lateral Vein Introducer:
- Risk Analysis ●
- Requirements/Specification Reviews ●
- Design Reviews
- Performance Testing (Verification) including but not limited to: ●
- o Dimensional Tests
- Sheath introducer Curve dimensions ■
- Sheath introducer outer diameter (O.D.) ■
- . Sheath introducer inner diameter (I.D.)
- 트 Sheath introducer free length, overall length
- I o Functional Tests
- Sheath introducer soft tip joint integrity ■
- Sheath introducer valve housing separation
- Sheath introducer tube/valve housing pull force
- . Sheath introducer radiopaque tube segment joint pull force
- 트 Sheath introducer tube joint pull force
- Simulated Use Test o
- Sheath introducer tube slitting with slitter l
- I Sheath introducer radiopaque tip bend
- Visual Tests o
- Kit pouch integrity 트
- 트 Kit package integrity
- . Sheath Introducer visual appearance
- 트 Guiding catheter visual appearance
- l TVI visual appearance
- Slitter (Cutter) visual appearance
- . Sterilization Validation
- Biocompatibility Testing .
- o Cytotoxicity
Safety & Performance Tests
{7}------------------------------------------------
| International<br>Standards | No performance standards have been established under section 514<br>of the Food, Drug and Cosmetic Act for this device. Performance<br>testing of the 5.5 F Worley Advanced LVI Lateral Vein Introducer<br>was conducted based on the risk analysis and based on the<br>requirements of the following international standards:<br>ISO 11070: 1998(E), Sterile, single-use intravascular catheter<br>introducers ISO 11135-1: 2007, Sterilization of health care products -<br>Ethylene oxide - Part 1: Requirements for development,<br>validation and routine control of a sterilization process for medical<br>devices AAMI TIR28:2009, Product adoption and process equivalence for<br>ethylene oxide sterilization ISO 10993-1: 2009, Biological Evaluation of Medical Devices<br>Part-1: Evaluation and Testing within a risk management<br>process, ISO 10993-7: 2008, Biological Evaluation of Medical Devices<br>Part-7 Ethylene Oxide Sterilization Residuals ISO 10993-17: 2002, Biological evaluation of medical devices -<br>Part 17: Methods for the establishment of allowable limits for<br>leachable substances ASTM D4169-09, Standard Practice for Performance Testing of<br>Shipping Containers and Systems ISO 11607-1: 2009, Packaging for terminally sterilized medical<br>devices - Part 1: Requirements for materials, sterile barrier<br>systems and packaging systems ISO 14971:2012, Medical devices - Application of risk<br>management to medical devices |
|------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Summary of<br>Substantial<br>Equivalence | Based on the indications for use, design, safety and performance<br>testing, the subject 5.5 F Worley Advanced LVI Lateral Vein<br>Introducer meets the requirements that are considered essential for<br>its intended use and is substantially equivalent to the predicate<br>device, the Coronary Sinus Guide and Lateral Vein Introducer Kits -<br>K120158, manufactured by Merit Medical Systems, Inc |
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.