K112812 · Jeil Medical Corporation · GWO · Feb 22, 2012 · Neurology
Device Facts
Record ID
K112812
Device Name
LEFORTE NEURO SYSTEM BONE PLATE
Applicant
Jeil Medical Corporation
Product Code
GWO · Neurology
Decision Date
Feb 22, 2012
Decision
SESE
Submission Type
Special
Regulation
21 CFR 882.5320
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
This device is intended for use in selective trauma of the cranial skeleton, cranial surgery and reconstructive procedures.
Device Story
LeForte Neuro System Bone Plate & Screw consists of titanium plates and screws used for rigid fixation in cranial surgery, trauma, and reconstruction. Device provides mechanical stabilization of bone segments. Operated by surgeons in clinical/surgical settings. Output is physical fixation of bone; aids healing by maintaining alignment. Benefits include structural support for cranial bone during recovery. Device is non-sterile, single-use, and requires surgical implantation.
Clinical Evidence
No clinical data. Bench testing only.
Technological Characteristics
Materials: Pure Titanium (ASTM F67) for plates, Titanium Alloy (ASTM F136) for screws. Plate thickness 0.3-0.6mm; screw diameter 1.4-1.9mm; screw length 2.2-5.0mm. Surface treatment: Anodizing on plates. Non-sterile, single-use. Mechanical fixation device.
Indications for Use
Indicated for patients requiring fixation in selective trauma of the cranial skeleton, cranial surgery, and reconstructive procedures. Contraindicated in cases of active or suspected infection, patients sensitized to Titanium, or patients unable to adhere to rigid fixation limitations.
Regulatory Classification
Identification
A preformed alterable cranioplasty plate is a device that is implanted into a patient to repair a skull defect. It is constructed of a material, e.g., tantalum, that can be altered or reshaped at the time of surgery without changing the chemical behavior of the material.
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K112812
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## 510 (k) Summary
This summary of 510(k) safety and effectiveness information is being submitted in accordance with requirements of 21 CFR Part 807.92
Date: January 17, 2012
#### 1. Contact:
| | Company |
|----------|-------------------------------------------------------------------------------------------------|
| Name | Jeil Medical Corporation |
| Address | #702, Kolon Science Valley 2nd<br>811, Guro-dong, Guro-gu, Seoul, 152-050,<br>Republic of Korea |
| Phone | +82 2 850-3524 |
| Fax | +82 2 850-3525 |
| Contact | Mr. Ron Arkin |
| Internet | ronarkin@arkinconsulting.com |
#### 2. Device:
| · Proprietary Name - | LeForte Neuro System Bone Plate & Screw |
|-------------------------|-------------------------------------------|
| · Common Name - | Bone Plate, Bone Screw |
| · Classification Name - | Plate, Cranioplasty, Preformed, Alterable |
Plate, Cranioplasty, Preformed, Alterable Fastener, Plate, Cranioplasty
#### 3. Predicate Devices:
.
- Jeil Medical Corporation/ LeForte Neuro System Bone Plate / K091679 .
- Jeil Medical Corporation/ LeForte Neuro System Bone Plate / K103778 .
- Jeil Medical Corporation/ LeForte Neuro System Bone Screw / K091686
- 4. Regulatory Classifications, Product Code: 21CFR882.5320, GWO, Class II 21CFR882.5360, HBW, Class II
#### 5. Performance Standards:
No applicable performance standards have been issued under section 514 or under section 513(b) of the Food, Drug and Cosmetic Act.
- 6. Description:
The LeForte Neuro System Bone Plate & Screw is made of pure Titanium (ASTM F67) and Titanium Alloy (ASTM F136). It is intended for use in selective trauma of the cranial skeleton, cranial surgery and reconstructive procedures.
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LeForte Neuro System Bone Plate & Screw
- 7. Indications for Use:
This device is intended for use in selective trauma of the cranial skeleton, cranial surgery and reconstructive procedures.
- 8. Contraindications:
- · Not for use in cases of active or suspected infection or in patients previously sensitized to Titanium.
- · Not for use in patients exhibiting disorders which would cause the patient to ignore the limitations of rigid fixation plate and screw implants.
- 9. Potential Adverse Affects:
- Poor bone formulation, Osteoporosis, Osteolysis, Osteomyelitis, inhibited revascularization, or infection can cause loosening, bending, cracking or fracture of the device or premature loss of fixation with the bone, leading to nonunion,
- Nonunion or delayed union which may lead to breakage of the implant
- Migration, bending, fracture or loosening of the implant
- Metal sensitivity, or allergic reaction to foreign body "
- . Decrease in bone density due to stress shielding
- . Pain, discomfort, or abnormal sensation due to the presence of the device
- . Increased fibrous tissue response around the fracture site and/or the implant
- . Necrosis of bone
- . Inadequate healing
Apart from these adverse effects there are always possible complications of any surgical procedure such as but not limited to, infection, nerve damage and pain which may not be related to the implant.
- 10. Predicate comparison:
The LeForte Neuro System Bone Plate & Screw has the same device characteristics, material, design and intended use as the predicate devices identified.
| Parameter | LeForte Neuro System<br>Bone Plate & Screw<br>Jeil Medical Corporation | LeForte Neuro System Bone Plate,<br>LeForte Neuro System Bone Screw<br>Jeil Medical Corporation |
|------------------------|--------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| K# | Modified<br>v | K091679, K103778, K091686 |
| Indications<br>for use | This device is intended for use in selective trauma of the cranial skeleton,<br>cranial surgery and reconstructive procedures. | |
| Shape | The same models with the addition of<br>Triangular shapes | Mesh, Straight, Y, Curved, Square,<br>Quad, X, Calvarium, Double Y, Gap,<br>Bur hole, Mesh_MA, Mesh_MB,<br>Mesh_MC, Mesh_MD, NF Auto<br>Screw-Micro, NF Auto Screw-Mid |
| Dimensional | Plate thickness 0.3~0.6m<br>Screw Outer diameter 1.4~1.9mm<br>Screw Length 2.2~5.0mm | Plate thickness 0.3~0.6m<br>Screw Outer diameter 1.4~1.9mm<br>Screw Length 3.0~5.0mm |
| Material | Plate - Titanium ASTM F67 Grade1, 2, 3<br>Screw - Titanium Alloy ASTM F136 | |
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#### LeForte Neuro System Bone Plate & Screw
| Parameter | LeForte Neuro System<br>Bone Plate & Screw<br>Jeil Medical Corporation | LeForte Neuro System Bone Plate,<br>LeForte Neuro System Bone Screw<br>Jeil Medical Corporation |
|---------------|------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------|
| Surface | Plate: Anodizing<br>Screw: N/A | |
| Sterilization | Non sterile | |
| Single use | Yes | |
| Packaging | Vial, PA+PE film sealing | |
## l 1. Conclusions:
: :
.
:
In accordance with the Federal Food, Drug and Cosmetic Act, 21 CFR Part 807, and based on the information provided in this premarket notification Jeil Medical Corporation Concludes that the LeForte Neuro System Bone Plate & Screw is safe and effective and substantially equivalent to the predicate device as described herein.
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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 an abstract image of an eagle. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged around the perimeter of the circle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Jeil Medical Corporation c/o Mr. Paul Sumner Official Correspondent Arkin Consulting Group LLC 1733 Canton Lane Marietta, GA 30062
Re: K112812
LeForte Neuro System Bone Plate & Screw Regulation Number: 21 CFR 882.5320 Regulation Name: Preformed alterable cranioplasty plate Regulatory Class: Class II Product Code: GWO, GXR, HBW Dated: January 19, 2012 Received: January 23, 2012
Dear Mr. Sumner:
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
FEB 2 2 2012
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Page 2 - Mr. Paul Sumner
device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) 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 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/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Kesia Alexander
Malvina B. Eydelman, M.D. Director Division of Ophthalmic, Neurological, and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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LeForte Neuro System Bone Plate & Screw
# Indications for Use Statement
510(k) K112812 Number (if known)
Device LeForte Neuro System Bone Plate & Screw Name
This device is intended for use in selective trauma of the cranial skeleton, Indications for Use cranial surgery and reconstructive procedures.
Prescription Use
(Per 21 CFR 801. Subpart D)
OR
Over-The-Counter Use (21CFR801 Subpart C)
### PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED
Concurrence of CDRH, Office of Device Evaluation (ODE)
Lia Nguyen
**(Division Sign-Off)**
Division of Ophthalmic, Neurological and Ear, Nose and Throat Devices
K 11-2812 510(k) Number_
Indications For Use Statement
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.