The Mazor X is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery. It may be used in open or minimally invasive or percutaneous procedures. Mazor X 3D imaging capabilities provide a procession of 2D fluoroscopic projections from standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects. The Mazor X navigation tracks the position of instruments, during spinal surgery, in relation to the surgical anatomy and identifies this position on diagnostic or intraoperative images of a patient.
Device Story
Mazor X is a robotic-assisted surgical system for spinal procedures. It accepts 2D fluoroscopic projections from standard C-Arms as input, transforming them into volumetric 3D images. The system provides robotic trajectory guidance and navigation, tracking surgical instruments relative to patient anatomy on diagnostic or intraoperative images. Used in OR settings by surgeons, the system assists in the precise placement of spinal implants and instruments. Output is visualized on a display, aiding clinical decision-making by providing real-time spatial feedback during surgery. Benefits include increased precision in instrument/implant positioning. The system includes software for surgical planning and hardware for robotic guidance.
Clinical Evidence
No clinical data. Evidence consists of bench testing and software validation. Software validation followed FDA guidance and IEC 62304. Performance testing verified robotic trajectory accuracy (<1.5mm) and navigation accuracy (<2.0mm, 2.0°). Hardware verification confirmed modified components meet requirements identical to the predicate.
Technological Characteristics
Robotic trajectory guidance and navigation system. Includes 3Define camera, workstation, and software. Connectivity supports integration with C-Arm imaging. Software validation per IEC 62304. Robotic guidance accuracy <1.5mm; navigation accuracy <2.0mm, 2.0°.
Indications for Use
Indicated for patients undergoing general spinal surgery (open, minimally invasive, or percutaneous) requiring precise positioning of surgical instruments or spinal implants.
Regulatory Classification
Identification
A stereotaxic instrument is a device consisting of a rigid frame with a calibrated guide mechanism for precisely positioning probes or other devices within a patient's brain, spinal cord, or other part of the nervous system.
Predicate Devices
Mazor X System (Mazor X Stealth Edition) (K200935)
Submission Summary (Full Text)
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October 27, 2020
Mazor Robotics Ltd. Shiran Conforti Regulatory Affairs Manager 5 Shacham St. North Industrial Park Caesarea, 3079567 Israel
Re: K203005
Trade/Device Name: Mazor X Regulation Number: 21 CFR 882.4560 Regulation Name: Stereotaxic Instrument Regulatory Class: Class II Product Code: OLO, LLZ Dated: September 30, 2020 Received: October 1, 2020
Dear Shiran Conforti:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.
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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) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
Shumaya Ali, M.P.H. Assistant Director DHT6C: Division of Restorative, Repair and Trauma Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K203005
Device Name Mazor X system
### Indications for Use (Describe)
The Mazor X is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery. It may be used in open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a procession of 2D fluoroscopic projections from standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X navigation tracks the position of instruments, during spinal surgery, in relation to the surgical anatomy and identifies this position on diagnostic or intraoperative images of a patient.
| Type of Use (Select one or both, as applicable) |
|-------------------------------------------------|
|-------------------------------------------------|
X Prescription Use (Part 21 CFR 801 Subpart D)
| Over-The-Counter Use (21 CFR 801 Subpart C)
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# SUMMARY OF SAFETY AND EFFECTIVENESS
## K203005
(Premarket Notification [510(k)] Number)
#### 1. Submitter Information
| Manufacturer Name and Address | Official Correspondent |
|-------------------------------|------------------------------|
| Mazor Robotics Ltd. | Shiran Conforti |
| PO Box 3104, | Mazor Robotics Ltd. |
| 5 Shacham St., | PO Box 3104, |
| Caesarea Park North 3079567, | 5 Shacham St., |
| Israel | Caesarea Park North 3079567, |
| | Israel |
- 2. Date Prepared: September 30, 2020
- 3. Device Name Mazor X
| Proprietary Name: | Mazor X |
|--------------------------|------------------------------------------------------------------------------------------------|
| Common Name: | Combination of:<br>1. Stereotaxic instrument; and<br>2. System, Image Processing, Radiological |
| FDA Classification Name: | 21 CFR 882.4560; Stereotaxic instrument |
#### FDA Classification: Class II, Product Code OLO and LLZ
#### 4. Predicate Devices
The Mazor X is substantially equivalent to the following primary predicate device:
| Manufacturer | Device | 510(k) | Date Cleared |
|---------------------|---------------------------------------------|---------|--------------|
| Mazor Robotics Ltd. | Mazor X System (Mazor X<br>Stealth Edition) | K200935 | May 8, 2020 |
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#### 5. Device Description
The Mazor X system combines robotic trajectory guidance with navigated surgical instruments (either guided or free hand navigation) to enable the surgeon to precisely position surgical instruments and/or implants according to predefined planning. With the imaging capabilities of the system, the user can also visualize the implants on the patients CT. The modified Mazor X, the subject of this 510(k) application, introduces software and hardware modifications to the original Mazor X System cleared in 510(k) K200935.
#### 6. Indications for Use
The Mazor X is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery. It may be used in open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a processing and conversion of 2D fluoroscopic projections from standard C Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X navigation tracks the position of instruments, during spinal surgery, in relation to the surgical anatomy and identifies this position on diagnostic or intraoperative images of a patient.
#### 7. Performance Standards
There are no performance standards under the Federal Food, Drug and Cosmetic Act, for the Mazor X.
#### 8. Performance Testing
The following software validation and performance tests were performed on the modified Mazor X system:
- Software validation testing in accordance with the FDA Guidance for the Premarket Submissions for Software Contained in Medical Devices (May 11, 2005) and the IEC 62304 Standard for Medical Device Software - Software Life Cycle Processes.
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The software validation tests demonstrate that the Mazor X software version meets the design requirements. Test cases were designed for testing procedure simplicity, system startup, security, user interfaces, diagnostics and error handling, performance and robustness, installation, and database.
The modified Mazor X System was also tested to ensure that the software changes did not affect the previously cleared robotic guidance trajectory accuracy (i.e., < 1.5mm) and system navigation accuracy (i.e., < 2.0mm, 2.0°), following the software modifications.
- Hardware changes verification: the system hardware that was modified was tested to verify that it meets the requirements. The test protocols that were used are identical to the test protocols used to verify and validated the same parts for the cleared Mazor X.
#### 9. Technological Characteristics Compared to Predicate Device
The device modifications included modified software and a slightly modified Mazor X System (minor hardware change). The software modifications included software changes to allow planning of interbody implants in the main planning screen, enable navigation of additional Medtronic navigated surgical instruments used for interbody placement and drill systems (all were previously cleared by the FDA), enhanced functionalities within the established specifications as well as screen enhancements (graphical enhancements and information presented differently on screen). The modified Mazor X surgical system is similar to the cleared Mazor X surgical system with a minor change in the device's 3Define camera due to end of life (both camera models are similar in specifications).
The modifications do not adversely affect the safety, effectiveness and performance of the Mazor X system. The Mazor X system was tested according to the aforementioned validation and performance tests and found compliant.
{6}------------------------------------------------
The technological characteristics, e.g., overall design, materials, mechanism of action, mode of operation, performance characteristics, etc., of the Mazor X system are substantially equivalent to the predicate device cited above.
#### Conclusion 10.
The performance testing and comparison to the predicate device demonstrate that the Mazor X system is as safe, as effective and performs as well as the legally marketed Mazor X System predicate device. Therefore, the Mazor X system is substantially equivalent to the Mazor X System cleared under K200935.
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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 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).
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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.
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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.
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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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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.
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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.