K113475 · Endoscopic Technologies, Inc. D/B/A Estech · OCL · Mar 20, 2012 · General, Plastic Surgery
Device Facts
Record ID
K113475
Device Name
ESTECH COBRA ADHERE XL 2 SURGICAL SYSTEM
Applicant
Endoscopic Technologies, Inc. D/B/A Estech
Product Code
OCL · General, Plastic Surgery
Decision Date
Mar 20, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4400
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The ESTECH COBRA Adhere XL 2 is intended to ablate cardiac tissue during cardiac surgery using radiofrequency (RF) energy when connected directly to the Estech Electrosurgical unit (ESU). The ESTECH COBRA Adhere XL 2 may be used for temporary cardiac pacing, sensing, recording, and stimulation during the evaluation of cardiac arrhythmias during surgery when connected to a temporary external cardiac pacemaker or recording device.
Device Story
Estech COBRA Adhere XL 2 is a sterile, single-use surgical ablation probe. Device uses vacuum stabilizer to maintain contact between ablation electrodes and target cardiac tissue; internal ribcage provides structural integrity and shape conformability. RF energy delivered via electrodes when connected to COBRA Electrosurgical Unit (ESU). Device includes integrated indifferent electrode; surgeon-selectable modes allow energy return via integrated electrode or external patient-placed electrode. When disconnected from ESU and connected to auxiliary external pacemaker/recording device, probe provides temporary cardiac pacing, sensing, recording, and stimulation. Used in OR by surgeons during cardiac procedures. Output allows surgeon to ablate tissue or evaluate arrhythmias; benefits include controlled tissue ablation and intraoperative diagnostic capability.
Clinical Evidence
No clinical data. Substantial equivalence supported by in-vitro and in-vivo bench testing demonstrating device ability to pace, sense, stimulate, and ablate cardiac tissue equivalent to predicates. Biocompatibility tested per ISO 10993; electrical safety tested per IEC 60601-1-2 and IEC 60601-2-2.
Technological Characteristics
RF ablation probe with vacuum-assisted tissue contact. Features: internal ribcage for conformability, multiple active RF electrodes, two thermocouples per electrode, integrated indifferent electrode. Connectivity: ESU for ablation; auxiliary cable for external pacemaker/recording device. Biocompatibility: ISO 10993 compliant. Electrical safety: IEC 60601-1-2, IEC 60601-2-2.
Indications for Use
Indicated for patients undergoing cardiac surgery requiring cardiac tissue ablation or temporary cardiac pacing, sensing, recording, and stimulation for arrhythmia evaluation.
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.
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# KIT3445
## SECTION 5: 510(k) SUMMARY OF SAFETY AND EFFECTIVENESS
MAR 2 0 2012
#### Device Information:
| Category | Comments |
|--------------------------|--------------------------------------------------------------------------------------------|
| Sponsor: | ESTECH, Inc.<br>2603 Camino Ramon<br>Suite 100<br>San Ramon, CA 94583<br>Tel: 925-543-2110 |
| Correspondent: | Tamer Ibrahim<br>Vice President<br>ESTECH, Inc |
| Contact Information: | Tel: 925-543-2110<br>Fax: 925-866-7117 |
| Device Common Name: | Surgical Device, For Ablation of Cardiac<br>Tissue |
| Device Proprietary Name: | Estech COBRA Adhere XL 2 |
| Device Classification: | Class II, OCL (21 CFR 878.4400) |
#### Predicate Device Information:
| Predicate Devices: | Estech COBRA Adhere XL (K051749)<br>Estech COBRA Bipolar Recording Electrode<br>(K051749) |
|-----------------------------------------|-------------------------------------------------------------------------------------------|
| Predicate Device Manufacturers: | Endoscopic Technologies, Inc (dba Estech) |
| Predicate Device Common Name: | Surgical Device, For Ablation of Cardiac<br>Tissue |
| Predicate Device Classification: | 21 CFR 878.4400 |
| Predicate Device Classification Number: | Class II, OCL |
#### Predicate Device Information:
| Predicate Devices: | Multifunctional Linear Pen (K100501) |
|-----------------------------------------|----------------------------------------------------|
| Predicate Device Manufacturers: | AtriCure, Inc. |
| Predicate Device Common Name: | Surgical Device, For Ablation of Cardiac<br>Tissue |
| Predicate Device Classification: | 21 CFR 878.4400 |
| Predicate Device Classification Number: | Class II, OCL |
### b. Date Summary Prepared
21 November 2011 (Updated 22Feb2012)
#### c. Description of Device
The Estech COBRA Adhere XL 2 is a sterile, single use device intended for the ablation of The Esteon CODIA Cranel to deliver RF energy to the target tissue via electrodes in the device when connected to the COBRA Electrosurgical Unit (ESU).
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When the COBRA Adhere XL 2 is connected to an auxiliary temporary external pacemaker or recording device it can be used to provide temporary cardiac pacing, sensing, recording, and stimulation during the evaluation of cardiac arrhythmias during surgery. The COBRA Adhere XL 2 must be disconnected from the ESU and connected to a temporary external pacemaker or recording device using the accessory cable provided.
#### d. Intended Use
The ESTECH COBRA Adhere XL 2 is intended to ablate cardiac tissue during cardiac surgery using radiofrequency (RF) energy when connected directly to the Estech Electrosurgical unit (ESU).
The ESTECH COBRA Adhere XL 2 may be used for temporary cardiac pacing, sensing, recording, and stimulation during the evaluation of cardiac arrhythmias during surgery when connected to a temporary external cardiac pacemaker or recording device.
#### e. Comparison to Predicate Device and Summary of Technological Characteristics
The ESTECH COBRA Adhere XL2 has the identical intended use and the same technological characteristics as the predicate devices. There have been no significant changes in technological characteristics with respect to the predicate device including materials, design, energy sources, or other features from the predicate device.
The COBRA Adhere XL 2 and predicate COBRA Adhere XL both comprise a vacuum stabilizer to maintain contact between the ablation probe and target tissue to be ablated. These vacuum te hilizers are flexible. The COBRA Adhere XL 2 further comprises an internal ribeage which gives the device the ability to conform into various shapes while providing the flexible suction stabilizer with structural integrity. The predicate COBRA Adhere XL has a vacuum stabilizer with a centrally located series of electrodes. The COBRA Adhere XL 2 has a vacuum stabilizer with a laterally located series of electrodes. As the vacuum stabilizers form a seal with the tissue, while is drawn into the device creating contact between tissue to be ablated and the electrodes.
Both the COBRA Adhere XL2 and predicate COBRA Adhere XL include temperature controlled Doar are of endicate and application devices each have multiple active RF electrodes that are individually selectable and controlled by the ESU (generator). Predicate and application devices each have two (2) thermocouples attached to each active RF electrode. The COBRA Adhere XL2 also comprises an integrated indifferent electrode. With the COBRA Adhere XL 2, RF energy is directed from the active electrode to the integrated indifferent electrode or to the indifferent electrode placed on the patient's back, depending on the mode the device is in, as selected by the surgeon. The surgeon depresses the button on the device handle and the switch in serveted by the bargeon. I am enables or disables the integrated indifferent electrode.
The COBRA Adhere XL 2 also provides transient pacing/sensing capability when connected to an auxiliary temporary external pacemaker or recording device like the predicate devices.
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#### f. Summary of Nonclincal Testing
Appropriate testing, included in this application, has been performed to ensure that the ESTECH COBRA Adhere XL 2 meets its product specifications. The data demonstrates substantial equivalence to the predicate devices. In-vitro and in-vivo testing demonstrate that the COBRA Adhere XL2 is able to pace, sense, and stimulate and ablate cardiac tissue as safely and effectively as the predicate devices.
The patient contacting materials of the ESTECH COBRA Adhere XL 2 have been tested in accordance with ISO 10993: Biological Evaluation of Medical Device to ensure biocompatibility. The safety of the electrical design has been tested per and is in conformance with the pertinent sections of IEC 60601-1-2, (Second Edition, 2001), Medical Electrical Equipment – Part 1-2: General Requirements for Safety – Collateral Standard: Electromagnetic Compatibility – Requirements and Tests and IEC 60601-2-2: Medical electrical equipment - Part 2-2: Particular requirements for the safety of high frequency surgical equipment.
#### g. Summary of Substantial Equivalence
Estech concludes that the COBRA Adhere XL 2 is substantially equivalent to the predicate devices. The indications for use, basic overall function, materials, packaging, and sterilization methods are identical or substantially equivalent.
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#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image is a black and white circular seal for the Department of Health & Human Services USA. The seal features the department's logo, which is a stylized caduceus, a symbol often associated with medicine and healthcare. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged around the perimeter of the circle.
#### Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
MAR 2 0 2012
Endoscopic Technologies, Inc. C/O Mr. Tamer Ibrahim 2603 Camino Ramon, Suite 100 San Ramon, CA 94583
Re: K113475
Trade/Device Name: ESTECH Cobra Adhere XL 2 Regulation Number: 21 CFR 878.4400 Regulation Name: Electrosurgical Cutting and Coagulation Device and Accessories Regulatory Class: Class II Product Code: OCL Dated: February 21, 2012 Received: February 22, 2012
Dear Mr. Ibrahim:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your Section 310(x) premailer is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for use stated in the cherosure) to regally manatiment date of the Medical Device Amendments, or to commence prior to May 20, 1970, the enaounter with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). allu Cosmetic Act (Act) that do not required to the general controls provisions of the Act. The You may, therefore, market me device, basjever to assements for annual registration, listing of general controls provisions of the fielding, and prohibitions against misbranding and devices, good manufacturing practice, tabeling, and information related to contract liability adulteration. Please note: CDNT docs not overance increases and misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it If your device is classified (Scc above) finitials affecting your device can be may be subject to additional controls. "Internal Regulations, "In addition, FDA may lound in the Code of I each. Regarders
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 Please be advised that FDA s issualled of a bays of a be requirements of the Act
that FDA has made a determination that your device complies with on any must that FDA has made a decernmanch and Joan Seeel by other Federal agencies. You must or any Federal statutes and regulations daminding, but not limited to: registration and listing (21
comply with all the Act's requirements, including, but not issuesting of m comply with all the Act 3 requirements, incruaing, our access of the subsiting of medical
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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 1100 for 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/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Ronn D. Zuckerman, M.D.
Bram D. Zackerman, 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): K113475
Device Name: ESTECH Cobra Adhere XL 2
Indications For Use:
The ESTECH Cobra Adhere XL2 is intended to ablate cardiac tissue during cardiac surgery using radiofrequency (RF) energy when connected directly to the Estech Electrosurgical Unit (ESU).
The ESTECH Cobra Adhere XL 2 may be used for temporary cardiac pacing, sensing, recording, and stimulation during the evaluation of cardiac arrhythmias during surgery when connected to a temporary external pacemaker or recording device.
Prescription Use __ × (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
| Concurrence of CDRH, Office of Device Evaluation (ODE) | |
|--------------------------------------------------------|--------|
| (Division Sign-Off) | |
| Division of Cardiovascular Devices | |
| 510(k) Number | A13475 |
| | Page 1 |
of 1
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.