The EVOS Lumbar Interbody System (EVOS device) is an intervertebral body device intended for use in skeletally mature patients with Degenerative Disc Disease (DDD) of the lumbar spine with up to Grade 1 spondylolisthesis at one or two contiguous levels from L2-S1. Degenerative disc disease is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies. The EVOS Lumbar Interbody System is intended to be used with autologous bone graft to facilitate fusion. It is to be used in patients who have had six months of non-operative treatment and is to be implanted via a direct posterior or transforaminal approach. The EVOS CURVED devices are implanted singly, while the EVOS ROTATE and EVOS STRAIGHT devices may be implanted singly or in pairs in the lumbosacral spine. The EVOS Lumbar Interbody System is intended to be used with supplemental fixation.
Device Story
EVOS Lumbar Interbody System is an intervertebral fusion implant for lumbar spine stabilization. Device consists of PEEK-OPTIMA (standard or HA-enhanced) spacers with embedded tantalum beads for radiographic visualization. Implants feature internal cavities for autologous bone graft and surface ridges/teeth for vertebral endplate anchoring. Available in STRAIGHT, CURVED, and ROTATE geometries with varying heights, widths, and lordotic angles. Surgical instruments facilitate implantation via direct posterior or transforaminal approach. Used by surgeons to treat DDD; requires supplemental fixation. Benefits include structural support and facilitation of spinal fusion in patients with discogenic pain.
Clinical Evidence
Bench testing only. Mechanical testing performed on gamma-irradiated, aged devices per FDA guidance. Tests included expulsion, static axial compression (ASTM F2077), static compressive shear (ASTM F2077), static subsidence (ASTM F2267), and dynamic axial compression (ASTM F2077).
Technological Characteristics
Materials: PEEK-OPTIMA LT1 or PEEK-OPTIMA HA Enhanced; Tantalum beads for radiopacity. Design: Rectangular spacers with surface ridges/teeth. Energy: None (passive implant). Connectivity: None. Sterilization: Gamma irradiation. Standards: ASTM F2077 (axial compression, compressive shear, dynamic axial compression), ASTM F2267 (subsidence).
Indications for Use
Indicated for skeletally mature patients with lumbar Degenerative Disc Disease (DDD) and up to Grade 1 spondylolisthesis at 1-2 contiguous levels (L2-S1) who failed 6 months of non-operative treatment.
Regulatory Classification
Identification
An intervertebral body fusion device is an implanted single or multiple component spinal device made from a variety of materials, including titanium and polymers. The device is inserted into the intervertebral body space of the cervical or lumbosacral spine, and is intended for intervertebral body fusion.
Special Controls
*Classification.* (1) Class II (special controls) for intervertebral body fusion devices that contain bone grafting material. The special control is the FDA guidance document entitled “Class II Special Controls Guidance Document: Intervertebral Body Fusion Device.” See § 888.1(e) for the availability of this guidance document.(2) Class III (premarket approval) for intervertebral body fusion devices that include any therapeutic biologic (e.g., bone morphogenic protein). Intervertebral body fusion devices that contain any therapeutic biologic require premarket approval.
(c)
*Date premarket approval application (PMA) or notice of product development protocol (PDP) is required.* Devices described in paragraph (b)(2) of this section shall have an approved PMA or a declared completed PDP in effect before being placed in commercial distribution.
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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" arranged around it. Inside the circle is a stylized image of three human profiles facing right, layered on top of each other to create a sense of depth.
July 13, 2015
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
Cutting Edge Spine, LLC Mr. John Souza, Sr. Director of Engineering 101 Waxhaw Professional Park Drive, Suite A Waxhaw, North Carolina 28173
Re: K150321
Trade/Device Name: EVOS Lumbar Interbody System Regulation Number: 21 CFR 888.3080 Regulation Name: Intervertebral body fusion device Regulatory Class: Class II Product Code: MAX Dated: July 2, 2015 Received: July 7, 2015
Dear Mr. Souza:
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 of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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Page 2 - Mr. John Souza, Sr.
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/Resourcesfor You/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 vours.
# Mark N. Melkerson -S
Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K150321
Device Name EVOS Lumbar Interbody System
### Indications for Use (Describe)
The EVOS Lumbar Interbody System (EVOS device) is an intervertebral body device intended for use in skeletally mature patients with Degenerative Disc Disease (DDD) of the lumbar spine with up to Grade 1 spondylolisthesis at one or two contiguous levels from L2-S1. Degenerative disc disease is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies.
The EVOS Lumbar Interbody System is intended to be used with autologous bone graft to facilitate fusion. It is to be used in patients who have had six months of non-operative treatment and is to be implanted via a direct posterior or transforaminal approach. The EVOS CURVED devices are implanted singly, while the EVOS ROTATE and EVOS STRAIGHT devices may be implanted singly or in pairs in the lumbosacral spine. The EVOS Lumbar Interbody System is intended to be used with supplemental fixation.
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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## 510(k) Summary
#### I. SUBMITTER
Cutting Edge Spine, LLC 101 Waxhaw Professional Park Dr., Suite A Waxhaw, NC 28173
Tel: (704) 243-0892 ext 12 Fax: (704) 731-2559
Contact Person: John Souza Sr., Director of Engineering Date Prepared: February 06, 2015
#### II. DEVICE
Name of Device: EVOS Lumbar Interbody System Common or Usual Name: Intervertebral fusion device with bone graft, lumbar Classification Name: Intervertebral body fusion device (21 CFR 888.3080) Regulatory Class: II Product Code: MAX
#### III. PREDICATE DEVICE
| | 510(k) Number | Device | Manufacturer |
|-------------------------|---------------|---------------------------------------------|-------------------------|
| Primary<br>Predicate | K102957 | EVOL Intervertebral Body<br>Fusion Device | Cutting Edge Spine, LLC |
| Additional<br>Predicate | K071724 | Lucent Intervertebral Body<br>Fusion Device | Spinal Elements |
| Additional<br>Predicate | K073291 | Capstone Spinal System | Medtronic |
| Additional<br>Predicate | K120368 | Capstone Control Spinal<br>System | Medtronic |
No reference devices were used in this submission.
#### IV. DEVICE DESCRIPTION
The EVOS Lumbar Interbody System is an Intervertebral Body Fusion System for the lumbar spine. The EVOS Lumbar Interbody System includes surgical instruments to deliver the EVOS devices via a Posterior or Transforaminal approach. The generally rectangular design of the EVOS device
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incorporates an internal cavity for insertion of biological bone growth material through the top and bottom openings, as well as four small transverse holes (two on each side) that are designed to enhance bony ingrowth. Each device has a series of ridges or "teeth" on the top and bottom surfaces that are designed to ensure strong anchoring on the vertebral body endplates and resist backing out of the implant. The EVOS devices are provided sterile (gamma irradiated) for single use.
The EVOS device is made of radiolucent PEEK-OPTIMA® LT1 or PEEK-OPTIMA® HA Enhanced material. In addition, tantalum beads are embedded in the spacers to allow for radiographic visualization. The geometric shape of the EVOS devices are categorized as either STRAIGHT, CURVED, or ROTATE. All are available in a range of sizes, as well as flat and biconvex endplates, and with various degrees of lordosis to accommodate variations in patients' anatomy. Most of the EVOS STRAIGHT devices are offered with an option of a Standard nose, Wide nose, or Narrow nose. The devices are available in various heights, widths, and lengths to accommodate various surgical technique options.
#### V. INDICATIONS FOR USE
The EVOS Lumbar Interbody System (EVOS device) is an intervertebral body device intended for use in skeletally mature patients with Degenerative Disc Disease (DDD) of the lumbar spine with up to Grade 1 spondylolisthesis at one or two contiguous levels from L2-S1. Degenerative disc disease is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies.
The EVOS Lumbar Interbody System is intended to be used with autologous bone graft to facilitate fusion. It is to be used in patients who have had six months of non-operative treatment and is to be implanted via a direct posterior or transforaminal approach. The EVOS CURVED devices are implanted singly, while the EVOS ROTATE and EVOS STRAIGHT devices may be implanted singly or in pairs in the lumbosacral spine. The EVOS Lumbar Interbody System is intended to be used with supplemental fixation.
### VI. COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE PREDICATE DEVICE
Intervertebral Body Fusion through a Posterior or Transformanial approach is the technological principle for both the subject and predicate devices. It is based on the use of surgical instrumentation to insert PEEK implants into the intervertebral space in order to assist in fusion. At a high level, the subject and predicate devices are based on the following same technological elements:
- Indications for Use
- Structural support mechanism .
#### VII. PERFORMANCE DATA
The EVOS device was tested in compliance with FDA's guidance document titled "Class II Special Controls Guidance Document: Intervertebral Body Fusion Device" and demonstrated substantially equivalent performance characteristics to the identified predicate devices.
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The EVOS device has been tested in the following test modes:
- Mechanical Testing on the final device that has been gamma irradiated and aged. ●
- o Expulsion Testing
- o Static Axial Compression per ASTM F2077
- Static Compressive Shear per ASTM F2077 O
- Static Testing in Subsidence per ASTM F2267 O
- Dynamic Axial Compression per ASTM F2077 O
#### VIII. CONCLUSIONS
The overall technology characteristics and mechanical performance data lead to the conclusion that the EVOS Lumbar Interbody System is substantially equivalent to the EVOL Intervertebral Body Fusion Device from Cutting Edge Spine (K102957), the Lucent Intervertebral Body Fusion Device from Spinal Elements (K071724), the Medtronic Capstone Spinal System (K073291), and the Medtronic Capstone Control Spinal System (K120368).
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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
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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.
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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.
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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.
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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.
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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.