K132645 · Medtronic, Inc. · GAD · Oct 4, 2013 · General, Plastic Surgery
Device Facts
Record ID
K132645
Device Name
THORATRAK MICS RETRACTOR SYSTEM, RACK, BLADES
Applicant
Medtronic, Inc.
Product Code
GAD · General, Plastic Surgery
Decision Date
Oct 4, 2013
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4800
Device Class
Class 1
Indications for Use
The ThoraTrakTM minimally invasive cardiac surgery (MICS) retractor system is intended to provide surgical access for minimally invasive cardiothoracic procedures, including minimally invasive coronary artery bypass grafting (CABG) surgery and LIMA harvest, by retraction of soft and bony tissue.
Device Story
ThoraTrak MICS Retractor System; manual surgical instrument for cardiothoracic procedures. Components: retractor rack, LIMA blades, thoracotomy blades, extended mount blades. Used in OR by surgeons to provide access to pleural space via minimally invasive thoracotomy. Retracts soft and bony tissue to facilitate CABG and LIMA harvesting. Reusable, non-sterile, nonpyrogenic device.
Clinical Evidence
No clinical data; bench testing only.
Technological Characteristics
Manual surgical retractor system. Materials: chrome-coated stainless steel. Components: rack, LIMA blades, thoracotomy blades, extended mount blades. Reusable, non-sterile, nonpyrogenic.
Indications for Use
Indicated for patients undergoing minimally invasive cardiothoracic procedures, including coronary artery bypass grafting (CABG) and LIMA harvest, requiring retraction of soft and bony tissue.
Regulatory Classification
Identification
A manual surgical instrument for general use is a nonpowered, hand-held, or hand manipulated device, either reusable or disposable, intended to be used in various general surgical procedures. The device includes the applicator, clip applier, biopsy brush, manual dermabrasion brush, scrub brush, cannula, ligature carrier, chisel, clamp, contractor, curette, cutter, dissector, elevator, skin graft expander, file, forceps, gouge, instrument guide, needle guide, hammer, hemostat, amputation hook, ligature passing and knot-tying instrument, knife, mallet, disposable or reusable aspiration and injection needle, disposable or reusable suturing needle, osteotome, pliers, rasp, retainer, retractor, saw, scalpel blade, scalpel handle, one-piece scalpel, snare, spatula, stapler, disposable or reusable stripper, stylet, suturing apparatus for the stomach and intestine, measuring tape, and calipers. A surgical instrument that has specialized uses in a specific medical specialty is classified in separate regulations in parts 868 through 892 of this chapter.
Predicate Devices
ThoraTrak™ MICS Retractor System (Class I Retractor System)
Submission Summary (Full Text)
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# K132645
OCT 0 4 2013
## 510(k) Summary
Date Prepared: Submitter:
August 21, 2013
Medtronic, Inc. Medtronic Perfusion Systems 7611 Northland Drive Minneapolis, MN 55428 Establishment Registration Number: 2184009
Contact Person:
Chelsea L. Pioske Associate Regulatory Affairs Specialist Medtronic Perfusion Systems Phone: 763.514.9838 Fax: 763.367.8360 Email: chelsea.pioske@medtronic.com
Alternate Contact:
Susan Fidler Senior Regulatory Affairs Manager Medtronic Perfusion Systems Phone: 763.514.9839 763.367.8360 Fax: Email: susan.c.fidler@medtronic.com
## Device Name and Classification
| Trade Name: | ThoraTrak™ MICS Retractor System |
|-------------------------|-------------------------------------------------------|
| Common Name: | Retractor, Manual surgical instrument for general use |
| Regulation Number: | 21 CFR 878.4800 |
| Product Code: | GAD |
| Product Classification: | Class I |
### Predicate Devices
| Legally Marketed | ThoraTrak™ MICS Retractor System |
|--------------------------|----------------------------------|
| Class I Retractor System | |
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### Device Description
The ThoraTrak™ minimally invasive cardiac surgery (MICS) retractor system is designed for use with a minimally invasive thoracotomy, an incision in the chest wall into the pleural space, for procedures that include Coronary Artery Bypass Grafting (CABG) and Left Internal Mammary Artery (LIMA) harvesting. It consists of a retractor rack, 2 sets of LIMA blades, 4 sets of thoracotomy blades, and 2 extended mount blades. The retractor rack and blades are chromecoated stainless steel. They are non-sterile, nonpyrogenic, and reusable.
#### Indications for Use
The ThoraTrakTM minimally invasive cardiac surgery (MICS) retractor system is intended to provide surgical access for minimally invasive cardiothoracic procedures, including minimally invasive coronary artery bypass grafting (CABG) surgery and LIMA harvest, by retraction of soft and bony tissue.
### Comparison to Predicate Devices
A comparison of the modified product to the currently marketed predicate products indicates the following similarities:
- o Same intended use and target market
- � Same technological characteristics
- � Same operating principle
- . Same design features
- . Same base materials
- . Same shelf life
#### Conclusion
Medtronic has demonstrated that the indications for use modification made to the ThoraTrak™ minimally invasive cardiac surgery (MICS) retractor system described in this submission results in a substantially equivalent device because the fundamental scientific principle, operating principle, design features, and overall intended use are unchanged from the predicate device.
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Image /page/2/Picture/0 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized caduceus symbol, which is a staff with two snakes coiled around it, and the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged in a circular pattern around the symbol. The logo is black and white and appears to be a scanned image.
#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Dog Administration 10903 New Hampshire Avenue Document Control Center - WO06-Gb09 Silver Spring, MD 20993-0002
October 4, 2013
Medtronic, Incorporated Ms. Chelsca Pioske Associate Regulatory Affairs Specialist 7611 Northland Drive Minneapolis, Minnesota 55428
Re: K132645
Trade/Device Name: ThoraTrak" MICS Retractor System Regulation Number: 21 CFR 878.4800 Regulation Name: Manual surgical instrument for general use Regulatory Class: Class I Product Code: GAD Dated: August 21, 2013 Received: August 23, 2013
Dear Ms. Pioske:
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 reclassitied 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. Iisting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH docs 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 (2 1 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
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Page 2 - Ms. Chelsea Pioske
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 contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree 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" (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/ResourcesforYou/Industry/default.htm.
Sincerely yours,
# Mark N. Melkerson -S
Mark N. Melkerson Acting Director Division of Surgical Devices Office of Device Evaluation . Center for Devices and Radiological Health
Enclosure
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#### K132645
#### Statement of Indications for Use
510(k) Number (if known):
Device Name: ThoraTrak™ MICS Retractor System
Indications for Use:
The ThoraTrakTM minimally invasive cardiac surgery (MICS) retractor system is intended to provide surgical access for minimally invasive cardiothoracic procedures. including minimally invasive coronary artery bypass graffing (CABG) surgery and LIMA harvest by retraction of soft and bony tissue.
X Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurence of CDRH. Office of Device Evaluation (ODE)
Long H. Chen -A
for MXM
(Division Sign-Off) Division of Surgical Devices 510(k) Number: K132645
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.