The reprocessed vessel sealer/dividers are intended for use in general and gynecological laparoscopic surgical procedures where ligation and division of vessels and lymph is desired. Indications for use include general laparoscopic procedures including urologic, vascular, thoracic and thoracoscopic, and gynecologic procedures where ligation and division of the vessels is performed. These procedures include laparoscopically assisted vaginal hysterectomy, Nissen fundoplication, colectomy, adhesiolysis, oophorectomy, etc. The device has not been shown to be effective for tubal sterilization or tubal coagulation for sterilization procedures, and should not be used for these procedures. The reprocessed vessel sealer/dividers can be used to on vessels and lymphatics up to and including 7 mm, and tissue bundles.
Device Story
Reprocessed bipolar RF electrosurgical instrument; used with ForceTriad energy platform. Input: tissue bundles/vessels clamped between jaws. Operation: RF energy seals vessels/lymphatics; mechanical blade divides tissue. Used in laparoscopic surgery by surgeons. Hand-actuated lever opens/closes jaws; latching mechanism maintains pressure during sealing/cutting. Output: sealed and divided tissue. Benefits: enables minimally invasive vessel ligation and division. Device is reprocessed version of original OEM device.
Clinical Evidence
Bench testing only. Validated via cleaning, sterilization (ISO 11135, USP <71>), EO residuals (ISO 10993-7), packaging (ASTM D4169, F88, F2096), and shelf-life (ASTM 1980-07). Functional performance testing included electrical safety (IEC 60601-2-2), vessel seal burst pressure, thermal spread, mold stress, drop, spillage, and push testing.
Indicated for patients undergoing general, gynecological, urologic, vascular, or thoracic laparoscopic procedures requiring ligation and division of vessels/lymphatics up to 7mm and tissue bundles. Contraindicated for tubal sterilization or tubal coagulation.
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
Covidien LigaSure™ 5 mm, Blunt Tip Laparoscopic Sealer/Divider (K130744)
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" written around it. Inside the circle is an emblem featuring a stylized image of three human profiles facing right, with a design that resembles an abstract bird or wing above them.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
February 23, 2015
SterilMed % Dr. Sew-Wah Tay Libra Medical 8401 73rd Avenue North, Suite 63 Brooklyn Park, Minnesota 55428
Re: K143260
Trade/Device Name: Reprocessed Vessel Sealers Regulation Number: 21 CFR 878.4400 Regulation Name: Electrosurgical cutting and coagulation device and accessories Regulatory Class: Class II Product Code: NUJ Dated: January 23, 2015 Received: January 26, 2015
Dear Dr. Tay:
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 (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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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 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" (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 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.
# Jennifer R. Stevenson -S
For Binita S. Ashar, M.D., M.B.A., F.A.C.S. Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Page 3 – Dr. Sew-Wah Tay
### Device Models Subject to Clearance:
| Model<br>Number | Device Description | Shaft<br>Diameter | Shaft<br>Length | Shaft<br>Rotation |
|-----------------|----------------------------------------------------------------------------------|-------------------|-----------------|-------------------|
| LF1637 | Reprocessed Covidien Ligasure 5 mm,<br>Blunt Tip, Laparoscopic<br>Sealer/Divider | 5 mm | 37 cm | 180° |
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### Indications for Use
510(k) Number (if known) K143260
Device Name
Reprocessed Vessel Sealers
#### Indications for Use (Describe)
The reprocessed vessel sealer/dividers are intended for use in general and gynecological laparoscopic surgical procedures where ligation and division of vessels and lymph is desired.
Indications for use include general laparoscopic procedures including urologic, vascular, thoracoscopic, and gynecologic procedures where ligation of the vessels is performed. These procedures include laparoscopically assisted vaginal hysterectomy, Nissen fundoplication, colectory, adhesiolysis, oophorectomy, etc. The device has not been shown to be effective for tubal sterilization or tubal coagulation for sterilization procedures, and should not be used for these procedures.
The reprocessed vessel sealer/dividers can be used to on vessels and lymphatics up to and including 7 mm, and tissue bundles.
Type of Use (Select one or both, as applicable)
| <span></span> | Prescription Use (Part 21 CFR 801 Subpart D) |
|---------------|----------------------------------------------|
| <span></span> | Over-The-Counter Use (21 CFR 801 Subpart C) |
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## II. SUMMARY AND CERTIFICATION
## A. 510(k) Summary
| Submitter and Manufacturer: | Nicole Boser<br>Sterilmed, Inc.<br>5010 Cheshire Parkway N, Suite 2<br>Plymouth, MN 55446 |
|------------------------------------|---------------------------------------------------------------------------------------------------------------|
| Manufacturing Facility<br>Address: | 11400 73rd Avenue North<br>Maple Grove, MN 55369 |
| Primary Contact: | Sew-Wah Tay PhD<br>Libra Medical, Inc.<br>Tel: 612-801-6782<br>Fax: 763-477-6357<br>Email: swtay@libramed.com |
| Secondary Contacts: | Nicole Boser<br>Tel: (763) 488-2050<br>Fax: (763) 488-3441<br>Email: nboser@sterilmed.com |
| Date of Submission: | 12 November 2014 |
| Trade Name: | Reprocessed Vessel Sealer |
| Regulation Name: | Electrosurgical, cutting & coagulation accessories,<br>laparoscopic & endoscopic, reprocessed |
| Regulation Number | 21 CFR 878.4400 |
| Device Classification: | Class II |
| Product Code: | NUJ |
| Predicate Devices: | Covidien LigaSure™ 5 mm, Blunt Tip Laparoscopic Sealer/Divider (K130744).<br>Sterilmed Reprocessed Vessel Sealer (K123096) |
|------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Description: | The reprocessed vessel sealer is a sterile, hand-held bipolar RF electrosurgical<br>instrument designed exclusively for use with the ForceTriad™ energy platform<br>(generator) to ligate (seal) and divide (cut) vessels, tissue bundles, and<br>lymphatics clamped between the jaws, grasping tissue, and blunt dissection<br>during laparoscopic general surgical procedures (as indicated) using radio<br>frequency (RF) energy. A hand actuated lever allows the user to open and close<br>the instrument jaws, and includes a latching mechanism that holds the jaws in the<br>closed position during vessel sealing and cutting. |
| Intended Use: | The reprocessed vessel sealer/dividers are intended for use in general and<br>gynecological laparoscopic surgical procedures where ligation and<br>division of vessels and lymph is desired.<br><br>Indications for use include general laparoscopic procedures including<br>urologic, vascular, thoracic and thoracoscopic, and gynecologic<br>procedures where ligation and division of the vessels is performed. These<br>procedures include laparoscopically assisted vaginal hysterectomy, Nissen<br>fundoplication, colectomy, adhesiolysis, oophorectomy, etc. The device<br>has not been shown to be effective for tubal sterilization or tubal<br>coagulation for sterilization procedures, and should not be used for these procedures.<br><br>The reprocessed vessel sealer/dividers can be used to on vessels and<br>lymphatics up to and including 7 mm, and tissue bundles. |
| Technological<br>Characteristics: | The reprocessed vessel sealer has the same technological and performance<br>characteristics as the predicate, K130744. Similar to the predicate, this<br>reprocessed device seals vessels and lymphatics using radio frequency (RF)<br>energy to achieve its intended use and can mechanically divide the sealed areas<br>or tissue with a mechanical cutting device. The manner of reprocessing and<br>testing is identical to predicate K123096, Sterilmed reprocessed vessel sealer. |
| Functional and<br>Safety Testing: | Representative samples of reprocessed devices were tested to demonstrate<br>appropriate functional characteristics. Process validation testing was performed<br>to validate the cleaning and sterilization procedures as well as device packaging.<br>In addition, the manufacturing process includes visual and validated functional<br>testing of all products produced. |
| Summary of<br>Non-clinical Tests<br>Conducted: | Specific non-clinical tests performed included: cleaning validation, sterilization<br>validation (ISO 11135, USP <71>), ethylene oxide residual testing (ISO 10993-<br>7), packaging validation (ASTM D4169, ASTM F88, ASTM F2096), and shelf-<br>life validation (ASTM 1980-07). In addition, validation of functional<br>performance (bench testing) was performed through simulated use, visual<br>inspection, and fatigue testing. Testing performed:<br>• Electrical Safety (IEC 60601-2-2)<br>• Device Functionality<br>• Vessel Seal Burst (Static and Burst Pressure)<br>• Vessel Seal Thermal Spread<br>• Mold Stress<br>• Drop<br>• Spillage<br>• Push<br>Performance testing shows the reprocessed vessel sealers to perform as<br>originally intended. |
| Conclusion: | Sterilmed concludes that the reprocessed vessel sealer is safe, effective, and<br>substantially equivalent to the predicate device, Covidien LigaSure™ 5 mm,<br>Blunt Tip, Laparoscopic Sealer/Divider (K130744), as described in this<br>premarket notification submission. The reprocessing and validation methods<br>used are similar to the Sterilmed reprocessed vessel sealer predicate device<br>(K123096). |
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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.