AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip
K160454 · AtriCure, Inc. · FZP · Mar 18, 2016 · General, Plastic Surgery
Device Facts
Record ID
K160454
Device Name
AtriClip LAA Exclusion System with preloaded Gillinov-Cosgrove Clip
Applicant
AtriCure, Inc.
Product Code
FZP · General, Plastic Surgery
Decision Date
Mar 18, 2016
Decision
SESE
Submission Type
Special
Regulation
21 CFR 878.4300
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The AtriClip® LAA Exclusion System is indicated for the occlusion of the heart's left atrial appendage, under direct visualization, in conjunction with other open cardiac surgical procedures. Direct visualization, in this context, requires that the surgeon is able to see the heart directly, without assistance from a camera, endoscope, etc., or any other viewing technology. This includes performed by sternotomy (full or partial) as well as thoracotomy (single or multiple).
Device Story
The AtriClip LAA Exclusion System is a sterile, single-use implantable device designed for permanent occlusion of the left atrial appendage (LAA). It consists of a self-closing Gillinov-Cosgrove clip preloaded onto a disposable applier. The system is used by surgeons during open cardiac procedures (sternotomy or thoracotomy) under direct visualization. The applier features a handle, shaft, and deployment loop; the PRO2 version introduces active articulation controls to facilitate clip positioning and deployment. The surgeon manually positions the clip over the LAA; upon deployment, the clip provides uniform pressure to ensure secure occlusion. The device remains as a permanent implant. Benefits include consistent, reproducible LAA exclusion, which may reduce the risk of thromboembolic events. No electronic or software components are involved.
Clinical Evidence
Bench testing only. Evidence includes mechanical testing, reliability testing, MR compatibility testing per FDA guidance, and animal model bench testing. Biocompatibility testing was performed in accordance with ISO 10993-1 for an external communicating device with tissue/bone contact < 24 hours, including cytotoxicity, sensitization, irritation, systemic toxicity, and material-mediated pyrogenicity.
Technological Characteristics
Implantable clip and applier system. Materials: medical-grade metals and plastics. Principle: mechanical self-closing clip providing uniform pressure for LAA occlusion. Features: active articulation controls, disposable handle/shaft/deployment loop. Sterilization: sterile. Connectivity: none. Software: none.
Indications for Use
Indicated for occlusion of the left atrial appendage in patients undergoing open cardiac surgical procedures requiring direct visualization (sternotomy or thoracotomy).
Regulatory Classification
Identification
An implantable clip is a clip-like device intended to connect internal tissues to aid healing. It is not absorbable.
AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip (K093679)
AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip (K131107)
AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip (K142120)
AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip (K150996)
AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove PRO-V Clip (K153500)
Submission Summary (Full Text)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
March 18, 2016
AtriCure, Inc. Mr. Jonathan McElwee Senior Regulatory Specialist 6217 Centre Park Drive West Chester, Ohio 45069
Re: K160454
Trade/Device Name: AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip
Regulation Number: 21 CFR 878.4300 Regulation Name: Implantable Clip Regulatory Class: Class II Product Code: FZP Dated: February 17, 2016 Received: February 18, 2016
Dear Mr. McElwee:
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 of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
M.A. Hillebrand
for
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K160454
Device Name
AtriClip® LAA Exclusion System with Gillinov-Cosgrove® Clip
Indications for Use (Describe)
The AtriClip® LAA Exclusion System is indicated for the occlusion of the heart's left atrial appendage, under direct visualization, in conjunction with other open cardiac surgical procedures.
Direct visualization, in this context, requires that the surgeon is able to see the heart directly, without assistance from a camera, endoscope, etc., or any other viewing technology. This includes performed by sternotomy (full or partial) as well as thoracotomy (single or multiple).
| Type of Use (Select one or both, as applicable) | |
|------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------|
| <span style="font-size:12px">☒</span> Prescription Use (Part 21 CFR 801 Subpart D) | <span style="font-size:12px">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) |
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# 510(k) Summary
#### l. Submitter
| Manufacturer: | AtriCure, Inc.<br>6217 Centre Park Drive<br>West Chester, OH 45069<br>P: 513-755-4100<br>F: 513-755-4108 |
|----------------------|----------------------------------------------------------------------------------------------------------|
| Contact Person: | Jonathan McElwee<br>Senior Regulatory Affairs Specialist |
| Alternate Contact: | Jim Taufen<br>Sr. Manager of Regulatory Affairs |
| Date Prepared: | 2/17/2016 |
| II.<br>Device | |
| Name of Device: | AtriClip® LAA Exclusion System with preloaded Gillinov-Cosgrove® Clip (PRO2) |
| Common Name: | Implantable Clip and Clip Applier |
| Classification Name: | Implantable Clip and Clip Applier (21 CFR 878.4300) |
| Regulatory Class: | Class II |
| Product Code: | FZP |
#### lll. Predicate Device
The device proposed for modification in this submission is the AtriClip LAA Exclusion System cleared via K122276 on August 29, 2012.
The predicate device has not been subject to a design-related recall.
The following reference devices were also used in this submission:
- K093679 AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip ●
- K131107 AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip ●
- K142120 AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip
- K150996 AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove Clip
- K153500 AtriClip LAA Exclusion System with Preloaded Gillinov-Cosgrove PRO-V Clip .
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### IV. Device Description
The AtriClip PRO2 LAA Exclusion System consists of a single use, sterile, self-closing, implantable Clip preloaded on a Single Use Clip Applier along with a selection guide. When closed, the Clip applies uniform pressure over the length of the Clip to ensure consistent, reproducible, and secure occlusion of the left atrial appendage (LAA). The clip is then deployed and is left as a permanent implant. The Clip is available in the following lengths to accommodate different sizes of LAA: 35 mm, 40 mm, 45 mm, and 50 mm.
The Clip Applier is a disposable device with a handle, shaft, suture anchors, and deployment loop which contains the Clip. This Special 510(k) contains design modifications to the predicate AtriClip LAA Exclusion System (PRO1) intended to eliminate the End Effector Hoop configuration, allow for active articulation via articulation controls, and increase ease of deployment of the clip.
#### V. Indications For Use
The AtriClip LAA Exclusion System is indicated for the left atrial appendage, under direct visualization, in conjunction with other open cardiac surgical procedures.
Direct visualization, in this context, requires that the surgeon is able to see the heart directly, without assistance from a camera, endoscope, etc., or any other viewing technology. This includes procedures performed by sternotomy (full or partial) as well as thoracotomy (single or multiple).
### VI. Comparison Of Technological Characteristics With The Predicate Device
- . The devices have the same intended use, and;
- No changes were made in operating principle, or specifications of performance, and;
- Both the PRO1 and PRO2 Appliers use the Gillinov-Cosgrove Clip, and;
- . Both the predicate and proposed device are made of similar patient contacting materials (medical grade metals and plastics) with long and safe histories of use.
- . The results of the verification and validation testing:
- Demonstrated equivalency in performance o
- o Device biocompatibility remains unchanged
- Did not raise any new issues of safety O
The modifications to the proposed AtriClip LAA Exclusion System are intended to eliminate the existing End Effector Hoop configuration, allow for active articulation controls, and to increase ease of deployment.
#### VII. Performance Data
Non-clinical Bench Testing
- Mechanical Testing ●
- Reliability Testing ●
- Magnetic Resonance Testing Per FDA Guidance (December 11, 2014) Establishing Safety and ● Compatibility of Passive Implants in the Magnetic Resonance (MR) Environment
- . Bench Testing on an Animal Model
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# Biocompatibility Testing
The biocompatibility evaluation for the PRO2 clip applier was conducted in accordance with the 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
- . Systemic Toxicity
- Material Mediated Pyrogen .
The PRO2 clip applier is categorized as an "External Communicating Device," contact for "Tissue/Bone" and contact duration for "under 24 hours."
#### VIII. Conclusions
The modified AtriClip LAA Exclusion System (PRO2) is equivalent to the previously cleared AtriClip LAA Exclusion System (PRO1) as there is no change to intended use, operating principals, or function of the device.
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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.
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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
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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.
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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.