Medtronic Surgical Instruments are intended to be used during the preparation and placement of Medtronic implants during spinal surgery to assist the surgeon in precisely locating anatomical structures in either open, or minimally invasive, procedures. Medtronic Surgical Instruments are specifically designed for use with the MAZOR X Stealth™ Edition, which is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as a skull, a long bone, or vertebra can be identified relative to a CT or MR-based model, fluoroscopy images, or digitized landmarks of the anatomy. Medtronic Surgical Instruments can be navigated or non-navigated manual instruments that may or may not be guided through the MAZOR X Arm Guide. Medtronic surgical drills shall only be used through the MAZOR X arm guides, Medtronic crill guides. Some of the Medtronic Surgical Instruments are also compatible with the IPC™ POWEREASE™ System. An instrument may incorporate a measuring function which has uses as described on the instrument.
Device Story
CD HORIZON Spinal System instruments assist surgeons in spinal implant preparation and placement. Instruments include manual taps, drivers, and drills; designed for use with MAZOR X Stealth Edition stereotactic system. Instruments feature proximal bushings for NavLock tracker attachment, enabling optical navigation; dimensions compatible with MAZOR X arm guides for trajectory guidance. Some instruments compatible with IPC POWEREASE power system. Used in OR by surgeons; instruments provide physical guidance and anatomical localization. Navigation system processes inputs from trackers and imaging (CT/MR/fluoroscopy) to display instrument position relative to anatomy. Output assists surgeon in precise screw placement; benefits include improved surgical accuracy and procedural guidance.
Clinical Evidence
Bench testing only. No clinical data presented. Testing included navigation accuracy analysis, anatomical simulated use, navigation simulated use, CAD model evaluation, and navigation software module functional testing to verify instrument attributes and system compatibility.
Technological Characteristics
Non-sterile, reusable manual surgical instruments (taps, drivers, drills). Materials meet national/international standards. Features include proximal bushings for optical navigation trackers and specific geometries for MAZOR X arm guide compatibility. Compatible with IPC POWEREASE power system. Software interaction via navigation system module.
Indications for Use
Indicated for patients undergoing spinal surgery where stereotactic navigation is appropriate, including open or minimally invasive procedures requiring reference to rigid anatomical structures (skull, long bone, vertebra) via CT, MR, fluoroscopy, or digitized landmarks.
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
CD HORIZON Spinal System Instruments For Use With MAZOR X Stealth Edition (K182121)
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June 23, 2021
Image /page/0/Picture/1 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
Medtronic Diamond Wallace Regulatory Affairs Specialist 1800 Pyramid Place Memphis, Tennessee 38132
## Re: K211596
Trade/Device Name: CD Horizon Spinal System Regulation Number: 21 CFR 882.4560 Regulation Name: Stereotaxic Instrument Regulatory Class: Class II Product Code: OLO Dated: May 19, 2021 Received: May 24, 2021
## Dear Diamond Wallace:
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.
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
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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 (QS) 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 mediation-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,
For; 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 Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K211596
Device Name CD HORIZON™ Spinal System
### Indications for Use (Describe)
Medtronic Surgical Instruments are intended to be used during the preparation and placement of Medtronic implants during spinal surgery to assist the surgeon in precisely locating anatomical structures in either open, or minimally invasive, procedures. Medtronic Surgical Instruments are specifically designed for use with the MAZOR X Stealth™ Edition, which is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as a skull, a long bone, or vertebra can be identified relative to a CT or MR-based model, fluoroscopy images, or digitized landmarks of the anatomy. Medtronic Surgical Instruments can be navigated or non-navigated manual instruments that may or may not be guided through the MAZOR X Arm Guide. Medtronic surgical drills shall only be used through the MAZOR X arm guides, Medtronic crill guides. Some of the Medtronic Surgical Instruments are also compatible with the IPC™ POWEREASE™ System. An instrument may incorporate a measuring function which has uses as described on the instrument.
| 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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## 510(k) SUMMARY
## May 20th, 2021
- I. Medtronic Sofamor Danek, USA Inc. Company: 1800 Pyramid Place Memphis. TN 38132 Telephone Number: (901) 396-3133
- Contact: Diamond Wallace Regulatory Affairs Specialist Telephone number: (901) 396-3133 Email: diamond.m.wallace(@medtronic.com
- II. Proprietary Trade Name: CD HORIZON™ Spinal System
Common Name: Stereotaxic Instrument, Navigated Instruments
Classification Name: Stereotaxic Instrument (21 CFR 882.4560)
Classification: Class II
Product Code: OLO
#### III. Predicate Devices:
Primarv Predicate: CD HORIZON Spinal System Instruments For Use With MAZOR X Stealth Edition (K182121, S.E. 11/08/2018)
The predicate devices have not been subject to a design-related recall.
### IV. Device Description:
The CD HORIZON™ Spinal System surgical instruments are non-sterile, single or re-usable instruments that may be used during the preparation and placement of various Medtronic spinal implants during spinal surgery. The subject instruments are made of a variety of materials commonly used in orthopedic and neurological procedures which meet available national or international standards specifications. Single-use Medtronic Surgical instruments should never be reused under any circumstances.
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The CD Horizon™ instruments are intended to be used when preparing and placing Medtronic screws during spinal surgery. To enable optical navigation compatibility of the surgical instruments with the MAZOR X Stealth™ Edition System, the proximal ends of the instrument shafts have been designed with a bushing that provides a connect ion site where the NavLock™ trackers (K171267, S.E. 07/03/2017; K182104, 11/02/2018; K201327, S.E. 06/18/2020) can be attached. To enable trajectory guidance compatibility of the surgical instruments with the MAZOR X Stealth™ Edition System, the instrument dimensions have been designed to work with the MAZOR X arm guides. The subject taps and drivers may also be operated under power when attached to the POWEREASE™ Driver (K111520, S.E. 10/26/2011). The instruments will be provided non-sterile and are reusable.
#### Indications for Use: V.
Medtronic Surgical Instruments are intended to be used during the preparation and placement of Medtronic implants during spinal surgery to assist the surgeon in precisely locating anatomical structures in either open, or minimally invasive, procedures. Medtronic Surgical Instruments are specifically designed for use with the MAZOR X Stealth™ Edition, which is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as a skull, a long bone, or vertebra can be identified relative to a CT or MR-based model, fluoroscopy images, or digitized landmarks of the anatomy. Medtronic Surgical Instruments can be navigated or non-navigated manual instruments that may or may not be guided through the MAZOR X Arm Guide. Medtronic surgical drills shall only be used through the MAZOR X arm guides, Medtronic cannulas, and Medtronic drill guides. Some of the Medtronic Surgical Instruments are also compatible with the IPC™ POWEREASE™ System. An instrument may incorporate a measuring function which has uses as described on the label and the instrument.
### VI. Comparison of the Technological Characteristics with the Predicate Device:
The CD HORIZON™ instruments are intended to be used during the preparation and placement of Medtronic screws during spinal surgery and are specifically designed for use with the MAZOR X Stealth™ Edition. Like the predicate devices, the subject instruments
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work through an arm guide for trajectory guidance and attach to NavLock™ Trackers to allow for optical navigation. The subject devices have similar designs, principle of operation, fundamental scientific technology, material, intended use, as the predicate devices and incorporate the same design features to enable navigation, arm guide compatibility and use with the IPC™ POWEREASE™ System, when desired.
The subject drivers perform the same function as the predicate drivers by delivering a screw through the arm guide. Unlike the predicate, the subject drivers can be dis-assembled to clean or change out outer sleeves. The subject cannulas are identical to the predicate tapered cannulas except that the outer diameter is smaller. The subject taps are identical to the predicate taps however, they have a cortical thread form to match the bone screws.
#### Performance Data: VII.
Testing was completed to ensure the functionality and compatibility with the identified Medtronic products. The following table summarizes the performance testing completed:
| Test | Description |
|-------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|
| Navigation<br>Accuracy Analysis | Confirmed navigated instrument accuracy |
| Anatomical<br>Simulated Use | Confirmed instrument functionality under expected use conditions |
| Navigation<br>Simulated Use | Confirmed navigation system functionality under expected use<br>conditions |
| CAD Model<br>Evaluation | Verified that the CAD models are accurately reflected in the<br>application software |
| Navigation<br>Software Module<br>Instrument<br>Functional Testing | Verified that the instrument attributes are correctly implemented in<br>the navigation software module. |
### VIII. Conclusions
The CD HORIZON™ Instruments for use with the MAZOR X Stealth™ Edition have shown through comparison and testing to be substantially equivalent to the identified predicate devices.
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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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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.
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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.
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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.