K200514 · Medtronic · OCL · Jun 3, 2020 · General, Plastic Surgery
Device Facts
Record ID
K200514
Device Name
Cardioblate Gemini-s Surgical Ablation Device
Applicant
Medtronic
Product Code
OCL · General, Plastic Surgery
Decision Date
Jun 3, 2020
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4400
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Cardioblate Gemini-s surgical ablation device is intended to ablate cardiac tissue during cardiac surgery using radiofrequency (RF) energy. The system is indicated for use, under direct or endoscopic visualization, in surgical procedures, including minimally invasive surgical procedures.
Device Story
Hand-held, single-use, bipolar RF ablation device for cardiac surgery. Inputs: RF energy from external generator; saline for irrigation. Operation: Physician positions dual linear electrodes (6.3 cm) on cardiac tissue; squeezes handle to lock parallel jaws; triggers RF delivery and simultaneous saline flow to cool tissue/electrode interface. Output: Linear transmural lesions via resistive heating. Used in open or closed chest procedures under direct/endoscopic visualization. Flexible neck (0-180 degrees) allows anatomical access. Saline flow automatically stops when jaws open or device inactive. Benefits: Enables creation of Cox-Maze lesion patterns to treat cardiac arrhythmias.
Clinical Evidence
Bench testing only. No clinical or animal data required. Verification included mechanical, electrical, and electromagnetic compatibility testing per IEC 60601-1 and IEC 60601-2-2. Benchtop lesion verification in a soft tissue model demonstrated equivalent ablation performance to the predicate. Usability testing validated normal and worst-case use scenarios.
Technological Characteristics
Bipolar RF ablation device; dual linear electrodes (6.3 cm). Materials: Sterile, nonpyrogenic, single-use. Energy: RF from external generator (Valleylab FT10). Connectivity: Electrical connection to generator; luer connection for saline irrigation. Standards: IEC 60601-1, IEC 60601-2-2, IEC 60601-1-2. Sterilization: Ethylene oxide.
Indications for Use
Indicated for patients undergoing cardiac surgery requiring cardiac tissue ablation. Contraindicated for patients with active endocarditis or for ablation in a pool of blood.
Regulatory Classification
Identification
An electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current.
Predicate Devices
Cardioblate Gemini-s Surgical Ablation Device, Model 49260 (K121767)
Reference Devices
Valleylab™ FT10 Energy Platform, Model VLFT10GEN (K191601)
Submission Summary (Full Text)
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, with the letters "FDA" in a blue square. Next to that is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
June, 3, 2020
Medtronic Rahul Shah Principal Regulatory Affairs Specialist 7611 Northland Drive Minneapolis, Minnesota 55428
Re: K200514
Trade/Device Name: Cardioblate Gemini-s Surgical Ablation Device, Model 49351 Regulation Number: 21 CFR 878.4400 Regulation Name: Electrosurgical Cutting and Coagulation Device and Accessories Regulatory Class: Class II Product Code: OCL Dated: April 8, 2020 Received: April 10, 2020
Dear Rahul Shah:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Mark Fellman Assistant Director Division of Cardiac Electrophysiology, Diagnostics and Monitoring Devices Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K200514
Device Name
Cardioblate Gemini-s Surgical Ablation Device, Model 49351
Indications for Use (Describe)
The Cardioblate Gemini-s surgical ablation device is intended to ablate cardiac tissue during cardiac surgery using radiofrequency (RF) energy. The system is indicated for use, under direct or endoscopic visualization, in surgical procedures, including minimally invasive surgical procedures.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|
| <div style="display:flex; align-items:center;"><input checked="true" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D)</div> | <div style="display:flex; align-items:center;"><input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C)</div> |
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# 510(k) Summary
| Date Prepared: | February 28, 2020 |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter: | Medtronic, Inc.<br>Medtronic Perfusion Systems<br>7611 Northland Drive<br>Minneapolis, MN 55428<br>Establishment Registration Number: 2184009 |
| Contact Person: | Rahul Shah<br>Principal Regulatory Affairs Specialist<br>Medtronic Perfusion Systems<br>Phone: 763.514.9846<br>Email: rahul.m.shah@medtronic.com |
| Alternate Contact: | Mike Green<br>Senior Regulatory Affairs Manager<br>Medtronic Perfusion Systems<br>Phone: 763.514.9774 |
# Device Name and Classification
| Trade Name: | Cardioblate Gemini-s Surgical Ablation Device, Model 49351 |
|----------------------|----------------------------------------------------------------|
| Common Name: | Electrosurgical device |
| Classification name: | Electrosurgical cutting and coagulation device and accessories |
| Classification: | Class II |
| Regulation Number: | 21 CFR 878.4400 |
| Product Code: | OCL |
Email: mike.green@medtronic.com
# Name of Predicate Device
K121767 Cardioblate Gemini-s Surgical Ablation Device, Model 49260
## Name of Reference Device
| K191601 | Valleylab™ FT10 Energy Platform, Model VLFT10GEN |
|---------|--------------------------------------------------|
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## Device Description
The Cardioblate Gemini-s surgical ablation device (Model 49351) is a hand-held, single-use, bipolar, radio-frequency (RF) ablation device for use in cardiac surgery. It has a saline irrigation system to deliver fluid at the contact point between the tissue and electrode to cool the tissue during RF energy delivery. This device is intended for intermittent operation.
The proposed Cardioblate Gemini-s device is intended for use with the Valleylab™ FT10 Energy Platform (VLFT10GEN) with software version 3.0.0 or higher.
The devices are provided sterile and nonpyrogenic, are disposable, and are for single use only. They are sterilized using ethylene oxide.
The Cardioblate Gemini-s is a bipolar electrode device that transmits radio frequency energy, generated by an external generator, between the two electrodes. The device has dual linear electrodes, 6.3 cm in length, with integral fluid delivery to the electrodes. The Gemini-s device is port accessible, intended for open or closed chest procedures to ablate tissue through resistive heating due to radiofrequency energy passing through tissue. The device is designed to reproduce the Cox-Maze lesion pattern by creating linear transmural lesions in both atria of the heart during cardiac procedures.
The Gemini-s surgical ablation device has a flexible neck design that provides the physician with the ability to access various anatomies utilizing a neck curve through the full range from 0 to 180-degree configuration.
Once the electrodes are correctly positioned, the parallel jaws lock by squeezing the handle. The electrodes have full contact with the tissue and the locking mechanism must be fully engaged to ensure accurate transmurality readings. Simultaneous with the actuation of the trigger and jaw closure is the opening of the (normally closed) fluid path to start the flow of saline. The device automatically shuts off the saline when the jaws are open and when the device is not in use.
#### Indications for Use
The Cardioblate Gemini-s surgical ablation device is intended to ablate cardiac tissue during cardiac surgery using radiofrequency (RF) energy. The system is indicated for use, under direct or endoscopic visualization, in surgical procedures, including minimally invasive surgical procedures.
#### Contraindications
The Cardioblate Gemini-s surgical ablation device should not be used for:
- Patients that have active endocarditis at time of surgery ●
- . Ablation in a pool of blood (for example, through a purse string suture on a beating heart) (Effects of this type of ablation are unknown.)
#### Comparison to Predicate Devices
When compared to predicate devices (K121767), the Cardioblate Gemini-s Surgical Ablation Device presented in this submission have the same:
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- Intended Use and Contraindications .
- Technological characteristics and operating principle
- . Design features
- Performance specifications
- Patient contacting components and materials ●
- . Shelf life
- Packaging design and configuration .
When compared to predicate devices (K121767), the Cardioblate Gemini-s Surgical Ablation Device presented in this submission have the following key differences:
- New plug connector for VLFT10GEN compatibility
- IFU, Label and shelf carton branding updates .
- Branding - Medtronic logo print on the handle of Gemini-s
### Accessories:
The Cardioblate Gemini-s requires two connections: a fluid connection to the saline source, and an electrical connection to the radio frequency generator (reference device, VLFT10GEN).
The saline source connection is a standard luer connection designed for a commercially available standard saline bag pressurized using a pressure cuff. The electrical connection enables ablation that can be activated/deactivated with the use of a hand switch.
#### Performance Testing
Performance testing was completed to demonstrate substantial equivalence of the system (the proposed Cardioblate Gemini-s surgical ablation devices, when used with the Valleylab FT10 Energy Platform, software version 3.0 or higher) to the identified predicate. Clinical and nonclinical animal testing was not required to establish substantial equivalence. The subject device underwent the following verification and validation testing, as applicable:
Mechanical: Mechanical verification testing was conducted for components of the subject devices to ensure compliance with current IEC 60601-1 and IEC 60601-2-2 standard requirements and Medtronic self-enforced requirements.
Electrical: Electrical verification testing was conducted for the subject devices to ensure compliance with current IEC 60601-1 and IEC 60601-2-2 electrical requirements.
Electromagnetic compatibility: Electromagnetic compatibility testing was completed for the subject devices to ensure compliance with current IEC 60601-1-2 standard requirements.
Benchtop Lesion Verification: Comparative lesion verification testing was performedusing a soft tissue model to demonstrate the substantially equivalent ablation performance of the subject and predicate systems.
Usability: Testing was performed to verify and validate the usability requirements of the subject devices as a system. Elements captured included normal use cases, a foreseeable worst-case use scenario, and testable requirements for primary operating functions.
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# Conclusion
Verification and validation test results demonstrate that the subject devices are substantially equivalent to the predicates cleared in K121767. Differences between the subject and predicate devices do not raise different questions of safety and effectiveness. The intended use of the devices has not changed. Moreover, the fundamental scientific technology, operating principle, and design features are unchanged from that of the predicate.
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.