When intended to promote fusion of the cervical spine, and the thoracic spine, (C3-T3), the Gibralt Spinal System is indicated for the following: DDD (neck pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), spondylolisthesis, spinal stenosis, fracture, dislocation, failed previous fusion and/or tumors. The hooks and rods are also intended to provide stabilization to promote fusion following reduction of fracture/dislocation or trauma in the cervical/upper thoracic (C3-T3) spine. The use of polyaxial screws is limited to placement in T1-T3 in treating thoracic conditions only. Polyaxial screws are not intended to be placed in the cervical spine. This system can be used independently or in conjunction with Exactech 5.5mm or 6.0mm rod-based Thoraco-Lumbar Pedicle Screw Systems.
Device Story
Gibralt Rod-to-Rod Cross Connectors are line extension components for Gibralt Spinal System; designed to increase construct rigidity. Surgeons use connectors to immobilize/stabilize spinal segments as adjunct to fusion. Unlike previous connectors limited to specific connection points, these can be placed at any point along system rods. Device used in clinical settings by surgeons; provided non-sterile for hospital steam sterilization. Output is mechanical stabilization of spinal construct; aids clinical decision-making by providing additional options for construct configuration. Benefits patient through enhanced spinal segment immobilization during fusion process.
Clinical Evidence
Bench testing only. Mechanical properties assessed per ASTM F1717-13, including static compression bending and dynamic compression bend strength.
Technological Characteristics
Titanium alloy per ASTM F136. Mechanical spinal fixation components. Non-sterile; requires hospital steam sterilization. No software or electronic components.
Indications for Use
Indicated for patients requiring spinal fusion in the cervical and upper thoracic spine (C3-T3) due to DDD, spondylolisthesis, spinal stenosis, fracture, dislocation, failed previous fusion, or tumors. Polyaxial screws restricted to T1-T3 for thoracic conditions; not for cervical spine use.
Regulatory Classification
Identification
A spinal interlaminal fixation orthosis is a device intended to be implanted made of an alloy, such as stainless steel, that consists of various hooks and a posteriorly placed compression or distraction rod. The device is implanted, usually across three adjacent vertebrae, to straighten and immobilize the spine to allow bone grafts to unite and fuse the vertebrae together. The device is used primarily in the treatment of scoliosis (a lateral curvature of the spine), but it also may be used in the treatment of fracture or dislocation of the spine, grades 3 and 4 of spondylolisthesis (a dislocation of the spinal column), and lower back syndrome.
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K140645 Page 1 of 2
## Exactech® Gibralt® Rod-to-Rod Cross Connectors Special 510(k) - 510(k) Summary of Safety and Effectiveness
Sponsor: Exactech, Inc. 2320 N.W. 66th Court Gainesville, FL 32653
> Phone: (352) 327-4762 (352) 378-2617 Fax:
FDA Establishment Number 1038671
Contact: Patrick Hughes Senior Regulatory Affairs Specialist
Date: March 12, 2014
Trade of Proprietary or Model Name(s): Exactech® Gibralt® Rod-to-Rod Cross Connectors
Common Name: Spinal Fixation System
#### Classification Name:
- 21 CFR 888.3050 Spinal interlaminal fixation orthosis, Class II, Product . Code: K WP - appliance, fixation, spinal interlaminal
Information on devices to which substantial equivalence is claimed:
| 510(k) Number | Trade or Proprietary Model Name | Manufacturer |
|---------------|---------------------------------|---------------|
| K110197 | Gibralt Spinal System | Exactech, Inc |
#### Indications for Use:
When intended to promote fusion of the cervical spine, and the thoracic spine, (C3-T3), the Gibralt Spinal System is indicated for the following: DDD (neck pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), spondylolisthesis, spinal stenosis, fracture, dislocation, failed previous fusion and/or tumors. The hooks and rods are also intended to provide stabilization to promote fusion following reduction of fracture/dislocation or trauma in the cervical/upper thoracic (C3-T3) spine.
The use of polyaxial screws is limited to placement in T1-T3 in treating thoracic conditions only. Polyaxial screws are not intended to be placed in the cervical spine.
This system can be used independently or in conjunction with Exactech 5.5mm or 6.0mm rod-based Thoraco-Lumbar Pedicle Screw Systems.
## APR 1 1 2014
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## Exactech® Gibralt® Rod-to-Rod Cross Connectors Special 510(k) - 510(k) Summary of Safety and Effectiveness
#### Device Description:
Gibralt Rod-to-Rod Cross Connectors represent a line extension to the Gibralt Spinal System. The Gibralt Spinal System is a top-loading spinal fixation system comprising a range of polyaxial screws, rods, hooks, and various connectors. Gibralt Spinal System devices are used by surgeons to immobilize and stabilize spinal segments as an adjunct to fusion of the cervical and/or upper thoracic spine.
As with other Gibralt System cross-connectors, Gibralt Rod-to-Rod Cross Connectors are designed to increase the rigidity of Gibralt Spinal System constructs. Gibralt Rod-to-Rod Cross Connectors can be used at any point along a Gibralt Spinal System rod, where previous cross connectors can only be used at connection points in a system construct. This line extension is proposed to provide surgeons with additional options for stabilizing and/or immobilizing spinal segments as an adjunct to spinal fusion.
Like all Gibralt Spinal System components, the proposed Gibralt Rod-to-Rod Cross Connectors are manufactured from titanium alloy per ASTM F136. All implantable Gibralt Spinal System components are provided non-sterile, and must be steam sterilized by the hospital prior to use.
#### Bench Testing:
Mechanical properties for Gibralt Rod-to-Rod Cross Connectors were assessed per ASTM F1717-13:
- · Static compression bending
- · Dynamic compression bend strength
#### Substantial Equivalence Conclusion:
Detailed device comparison, bench testing, and engineering studies included or referenced in this submission demonstrate the proposed Gibralt Rod-to-Rod Cross Connectors are substantially equivalent to cleared predicate Gibralt Spinal System devices.
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Image /page/2/Picture/0 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized symbol that resembles an abstract human figure embracing or protecting another form.
#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
April 11, 2014
Exactech, Incorporated Mr. Patrick Hughes Senior Regulatory Affairs Specialist 2320 N.W. 66th Court Gainesville, Florida 32653
Re: K140645
Trade/Device Name: Exactech® Gibralt® Rod-to-Rod Cross Connectors Regulation Number: 21 CFR 888.3050 Regulation Name: Spinal interlaminal fixation orthosis Regulatory Class: Class II Product Code: KWP Dated: March 12, 2014 Received: March 13, 2014
#### Dear Mr. Hughes:
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 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.
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#### Page 2 - Mr. Patrick Hughes
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/Resourcesfor You/Industry/default.htm. 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
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/MedicalDeviccs/ResourcesforYou/Industrv/default.htm.
Sincerely yours.
# Ronald R. Jean -S for
Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
### Indications for Use
510(k) Number (if known)
K140645
#### Device Name
Gibralt Spinal System Rod-to-Rod Connectors
#### Indications for Use (Describe)
When intended to promote fusion of the cervical spine, and the thoracic spine, (C3-T3), the Gibralt Spinal System is indicated for the following: DDD (neck pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), spondylolisthesis, spinal stenosis, failed previous fusion and/or uniors. The hooks and rods are also intended to provide stabilization to promote fusion of fracturedislocation of trauma in the cervice/upper thoracic (C3-T3) spine.
The use of polyazial screws is limited to placement in T1-T3 in treating thoracic conditions only. "Polyaxial screws are not intended to be placed in the cervical spine.
This system can be used independently or in conjunction with Exacted Thorsco-Lumbar Pedicle Screw Systems.
Type of Use (Select one or both, as applicable)
2 Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
Form Approved: OMB No. 0910-0120
Expiration Date: January 31, 2017
See PRA Statement on last page.
## PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
THE CONTRACT FOR FOR FOR FOR FOR USE ONLY PRODUCTION OF THE SERVED THE SERVED Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
Image /page/4/Picture/15 description: The image shows the name "James P. Bertram-S" in bold, black font. Below the name, the date and time "2014.04.10 16:25:37 -04'00'" is printed in a similar font. The text appears to be extracted from a document or label, with the date and time possibly indicating a timestamp or record of when the document was created or modified.
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This section applies only to requirements of the Paperwork Reduction Act of 1995.
#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRASTAFF EMAIL ADDRESS BELOW.*
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
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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.
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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.
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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.
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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.