Retrograde coronary sinus cardioplegia catheters with and without Duraflo coating are intended for delivery of blood or cardioplegia solution intraoperatively to avoid cardiac damage and aid in myocardial protection. Retrograde coronary sinus cardioplegia catheters may be used in pediatric or adult populations based on the requirements of individual patient anatomy. This device is for short-term use only (≤ 6 hours). Extracorporeal circuit components with a Duraflo coating are intended for use in cardiopulmonary surgery when a heparin coated blood path is desired.
Device Story
Sterile, single-use, multi-lumen catheters for retrograde cardioplegia delivery during cardiopulmonary bypass; provides myocardial protection by delivering blood or cardioplegia solution to coronary sinus. Features include 2-3 lumens for cardioplegia delivery, pressure monitoring, and balloon inflation/stiffening wire; includes smooth or textured occlusion balloons (manually or self-inflating) and insertion stylet. Available with Duraflo (heparin) coating for heparin-bonded blood path. Used intraoperatively by surgeons; provides pressure monitoring feedback to guide delivery. Benefits include reduced cardiac damage during bypass. Device sizes range 9-14 French, 8-12.5 inches length; balloons 9mm-3cm.
Clinical Evidence
Clinical assessment based on published literature provided to support pediatric indication. Bench testing performed for sterility (ISO 11135-1), biocompatibility (ISO 10993-1), ethylene oxide residuals (ISO 10993-7), conical fittings, wire encapsulation, assembly leak, kink resistance, balloon burst/leak, pressure monitoring, corrosion, and tensile strength.
Technological Characteristics
Flexible/non-flexible polymeric materials; multi-lumen catheter design; occlusion balloon (smooth/textured); insertion stylet. Standards: ISO 10993-1 (biocompatibility), ISO 10993-7 (EO residuals), ISO 11135-1 (sterilization), ISO 14971 (risk management). Duraflo (heparin) coating option. Sizes: 9-14 French, 8-12.5 inches length. Balloon sizes: 9mm-3cm.
Indications for Use
Indicated for pediatric and adult patients undergoing cardiopulmonary bypass surgery requiring myocardial protection via delivery of blood or cardioplegia solution to the coronary sinus. Short-term use only (≤ 6 hours).
Regulatory Classification
Identification
A cardiopulmonary bypass vascular catheter, cannula, or tubing is a device used in cardiopulmonary surgery to cannulate the vessels, perfuse the coronary arteries, and to interconnect the catheters and cannulas with an oxygenator. The device includes accessory bypass equipment.
Retrograde Cardioplegia Cannulae with Duraflo Treatment (K991170)
Steerable Retrograde Cardioplegia Cannula with and without Duraflo Treatment (K001565)
Submission Summary (Full Text)
{0}------------------------------------------------
K128187
#### 510(k) Summary
| Submitter: | Edwards Lifesciences LLC |
|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Karen Jones, Senior Manager, Regulatory Affairs<br>12050 Lone Peak Pkwy<br>Draper, UT 84020<br>(801) 565-6231 |
| Date Prepared: | October 10, 2012 |
| Trade Name: | Edwards Lifesciences® Retrograde Cardioplegia Catheters<br>with and without Duraflo Coating |
| Classification Name: | Catheter, Cannula and Tubing, Vascular, Cardiopulmonary<br>Bypass, 21 CFR Part 870.4210, Product Code DWF, Class II |
| Predicate Device: | K880103 - Retrograde Coronary Sinus Cardioplegia Cannulae<br>K991170 - Retrograde Cardioplegia Cannulae with Duraflo<br>Treatment<br>K001565 - Steerable Retrograde Cardioplegia Cannula with and<br>without Duraflo Treatment |
#### Device Description:
Edwards Retrograde Coronary Sinus Cardioplegia Catheters (or Retrograde Cardioplegia Cannulae) are sterile, non-pyrogenic, single-use catheters made of flexible and non-flexible polymeric materials. They are intended to provide retrograde cardioplegia to the coronary sinus during cardiopulmonary bypass procedures.
Retrograde Cardioplegia Catheters have two or three lumens. One lumen delivers cardioplegia. A second lumen monitors pressure within the coronary sinus. If a third lumen is present, it either facilitates a manually inflated balloon or a stiffening wire.
{1}------------------------------------------------
Catheters include manually inflating or self-inflating smooth or textured occlusion balloons. A curved semi-rigid or malleable insertion stylet is provided with each catheter.
Edwards Retrograde Cardioplegia Catheters are also available with Duraflo™ (heparin) coating.
#### Indications for Use:
Retrograde coronary sinus cardioplegia catheters with and without Duraflo coating are intended for delivery of blood or cardioplegia solution intraoperatively to avoid cardiac damage and aid in myocardial protection.
Retrograde coronary sinus cardioplegia catheters may be used in pediatric or adult populations based on individual patient anatomy.
This device is for short-term use only (≤ 6 hours)
Extracorporeal circuit components with a Duraflo coating are intended for use in cardiopulmonary surgery when a heparin coated blood path is desired.
#### Comparative Analysis:
The Retrograde Cardioplegia Catheters have the same fundamental scientific technology and principles of operation as the predicate devices. Minor differences in features relate to customer reference rather than the clinical performance of the device. The product range of sizes now includes 9 to 14 French, 8 to 12.5 inches in length, and balloons from 9mm to 3cm. Size variations relate directly to patient anatomy. Balloons have a smooth or textured surface, and can either be self inflating or manually inflating. Additionally, the polymeric material formulations in the devices have evolved, but material types remain the same as those originally cleared in predicate submissions.
#### Non Clinical Testing:
Bench and laboratory testing was performed and assures that the product meets its specifications per the table below. The performance testing met the acceptance criteria.
{2}------------------------------------------------
| Testing | Criteria |
|-------------------------------------------|-----------------------------------------------------------------------------------------------------------|
| Sterility | Per ISO11135-1, Sterilization of health care products - Ethylene oxide - Part 1: |
| Ethylene oxide<br>sterilization residuals | ISO 10993-7, Biological evaluation of medical devices - Part 7: |
| Biocompatibility | Per ISO 10993-1 for External communicating device, direct<br>circulating blood path, duration ≤ 24 hours. |
| Conical Fittings | Fittings must be compatible with standard connections. |
| Wire Encapsulation | Cannula body wire reinforcement shall be fully encapsulated. |
| Assembly Leak | Pressure drop must meet minimum requirement. |
| Kink | The cannulae shall not kink at a pre determined diameter. |
| Balloon Burst | Minimum pressures, diameter, and volume at burst must be<br>maintained. |
| Balloon Leak | Balloon must not leak when inflated with pre determined volumes. |
| Pressure Monitoring | Flow testing will confirm patency of the pressure monitoring lumen. |
| Corrosion | The metallic components shall show no signs of corrosion. |
| Tensile | Confirmation of the bond strength of the catheter assembly must<br>meet pre determined loads. |
The Retrograde Cardioplegia Catheters conform to the following standards:
- · ISO 10993-1:2009, Biological evaluation of medical devices -- Part 1: Evaluation and testing.
- · 1SO 10993-7, Biological evaluation of medical devices Part 7: Ethylene oxide sterilization residuals
- · ISO11135-1, Sterilization of health care products Ethylene oxide Part 1: Requirements for development, validation and routine control of a sterilization process for medical devices
- · ISO14971, Medical devices Application of risk management to medical devices
#### Clinical Assessment:
A clinical assessment based on published studies was provided to support the pediatric indication.
#### Conclusion:
The Retrograde Cardioplegia Catheters are substantially equivalent to the cited predicate devices. The nonclinical tests and clinical assessment demonstrate that the devices are as safe and as effective as the legally marketed devices.
{3}------------------------------------------------
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle or bird-like figure with three curved lines representing its body and wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the bird symbol.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
February 22, 2013
Edwards Lifesciences LLC Karen Jones, Senior Principal Project Manager 12050 Lone Peak Pkwy. Draper, UT 84020
Re: K123187
Trade/Device Name: Retrograde Cardioplegia Catheter Regulation Number: 21 CFR 870.4210 Regulation Name: Cardiopulmonary bypass vascular catheter, cannula or tubing Regulatory Class: Class II Product Code: DWF Dated: January 25, 2013 · Received: January 28, 2013
Dear Ms. Jones:
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
{4}------------------------------------------------
Page 2 - Ms. Karen Jones
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,
## Matthew G. Hillebrenner
for Bram D. Zuckerman, M.D.
Director
Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
### Statement of Indications for Use
510(k) Number (if known): K123187
Device Name: Edwards Lifesciences® Retrograde Cardioplegia Catheter
Indications for Use:
Retrograde coronary sinus cardioplegia catheters with and without Duraflo coating are intended for delivery of blood or cardioplegia solution intraoperatively to avoid cardiac damage and aid in myocardial protection.
Retrograde coronary sinus cardioplegia catheters may be used in pediatric or adult populations based on the requirements of individual patient anatomy.
This device is for short-term use only (≤ 6 hours).
Extracorporeal circuit components with a Duraflo coating are intended for use in cardiopulmonary surgery when a heparin coated blood path is desired.
Prescription Use × (Per 21 CFR 801.109)
OR Over-The-Counter Use
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office Of Device Evaluation (ODE)
# Matthew GM lebrenner
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.