REAL INTELLIGENCE™ CORI™ XT (CORI XT)

K252841 · Blue Belt Technologies, Inc. · OLO · Dec 5, 2025 · Neurology

Device Facts

• Record ID: K252841
• Device Name: REAL INTELLIGENCE™ CORI™ XT (CORI XT)
• Applicant: Blue Belt Technologies, Inc.
• Product Code: OLO · Neurology
• Decision Date: Dec 5, 2025
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 882.4560
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

REAL INTELLIGENCE™ CORI™ XT is intended to assist the surgeon in providing software-defined spatial boundaries for orientation and reference information to anatomical structures during orthopedic procedures.

Device Story

CORI XT is a robotic orthopedic surgical navigation and burring system used in clinical settings by surgeons. It utilizes a passive infrared tracking camera to navigate anatomical structures. The system assists in surgical planning and execution by controlling the cutting engagement of a surgical bur based on proximity to a planned target surface. Two control modes are employed: exposure control (adjusting bur exposure relative to a guard) and speed control (regulating motor signal). If the surgeon deviates from the planned path, the system automatically disables cutting by retracting the bur or limiting drill speed; the surgeon may also override these controls to use the device as a standard navigated drill. The system provides real-time spatial boundaries and orientation information, aiding in accurate implant placement for knee and shoulder arthroplasty. This technology benefits patients by enhancing surgical precision and adherence to the preoperative plan.

Clinical Evidence

Bench testing only. Evidence includes software verification per IEC 62304, biocompatibility per ISO 10993-1, and EMC/safety testing per IEC 60601-1/1-2. Accuracy and usability engineering validation were performed using sawbone and cadaver models per IEC 62366-1. Results demonstrated that representative users could safely and effectively perform TKA, UKA, RKA, aTSA, and rTSA in simulated environments. Cut-to-plan accuracy data was found to be equivalent to predicate devices.

Technological Characteristics

Robotic surgical navigation and burring system. Uses passive infrared tracking camera for navigation. Features software-defined spatial boundaries and active cutting control (exposure and speed regulation). Connectivity/network details not specified. Biocompatibility per ISO 10993-1. Safety/EMC per IEC 60601-1 and 60601-1-2. Software developed per IEC 62304.

Indications for Use

Indicated for surgical procedures where stereotactic surgery is appropriate and rigid anatomical bony structures can be referenced. Procedures include unicondylar knee replacement (UKR), total knee arthroplasty (TKA), revision knee arthroplasty, anatomic total shoulder arthroplasty (aTSA), and reverse total shoulder arthroplasty (rTSA).

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

• REAL INTELLIGENCE™ CORI™ (K240139)
• ExactechGPS Total Shoulder Application, Equinoxe Planning Software (K213546)

Submission Summary (Full Text)

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FDA U.S. FOOD & DRUG ADMINISTRATION

December 5, 2025

Blue Belt Technologies, Inc.
Amy Zhi
Sr. Regulatory Affairs Specialist
2875 Railroad St.
Pittsburgh, Pennsylvania 15222

Re: K252841
Trade/Device Name: REAL INTELLIGENCE™ CORI™ XT (CORI XT)
Regulation Number: 21 CFR 882.4560
Regulation Name: Stereotaxic Instrument
Regulatory Class: Class II
Product Code: OLO, HSX, JWH, MBH, KWS
Dated: September 5, 2025
Received: September 8, 2025

Dear Amy Zhi:

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 (the 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 available 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.

U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov

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K252841 - Amy Zhi
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Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

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 Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-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 Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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-devices/medical-device-safety/medical-device-reporting-mdr-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/medical-devices/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-devices/device-advice-comprehensive-regulatory-

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assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

Shumaya Ali -S

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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Page 1 of 1

| Indications for Use | | |
| --- | --- | --- |
| Please type in the marketing application/submission number, if it is known. This textbox will be left blank for original applications/submissions. | K252841 | ? |
| Please provide the device trade name(s). | | ? |
| REAL INTELLIGENCE™ CORI™ XT (CORI XT) | | |
| Please provide your Indications for Use below. | | ? |
| REAL INTELLIGENCE™ CORI™ XT is indicated for use in surgical procedures, in which the use of stereotactic surgery may be appropriate, and where reference to rigid anatomical bony structures can be determined. These procedures include:
• unicondylar knee replacement (UKR),
• total knee arthroplasty (TKA),
• revision knee arthroplasty,
• anatomic total shoulder arthroplasty (aTSA), and
• reverse total shoulder arthroplasty (rTSA). | | |
| Please select the types of uses (select one or both, as applicable). | ☑ Prescription Use (Part 21 CFR 801 Subpart D)
☐ Over-The-Counter Use (21 CFR 801 Subpart C) | ? |

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Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, Pennsylvania 15222
USA
T: 412-683-3844
www.smith-nephew.com
SmithNephew
Blue Belt Technologies, Inc. is a subsidiary of Smith & Nephew, Inc.

# 510(k) Summary

510(k) Owner
Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, PA 15222 USA
Tel: [phone]

Contact Person
Amy Zhi
Senior Regulatory Affairs Specialist
Tel: [phone]
Email: [e-mail]

Date of Submission
September 05, 2025

Classification Reference
21 CFR 882.4560

Product Code
OLO

Supported Codes
HSX, JWH, MBH, KWS

Common/Usual Name
Orthopedic Stereotaxic Instrument

Trade/Proprietary Name
REAL INTELLIGENCE™ CORI™ XT (CORI XT)

Predicate Devices
Primary - REAL INTELLIGENCE™ CORI™ (K240139)
Additional - ExactechGPS Total Shoulder
Application, Equinoxe Planning Software (K213546)

Reason for Submission
The purpose of this submission is to seek clearance
for the REAL INTELLIGENCE CORI XT robotic
orthopedic surgical navigation and burring system.

K252841
Page 1 of 7

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Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, Pennsylvania 15222
USA
T: 412-683-3844
www.smith-nephew.com
SmithNephew
Blue Belt Technologies, Inc. is a subsidiary of Smith & Nephew, Inc.

# Intended Use

REAL INTELLIGENCE™ CORI™ XT is intended to assist the surgeon in providing software-defined spatial boundaries for orientation and reference information to anatomical structures during orthopedic procedures.

# Indications for Use

REAL INTELLIGENCE™ CORI™ XT is indicated for use in surgical procedures, in which the use of stereotactic surgery may be appropriate, and where reference to rigid anatomical bony structures can be determined. These procedures include:

- unicondylar knee replacement (UKR),
- total knee arthroplasty (TKA),
- revision knee arthroplasty,
- anatomic total shoulder arthroplasty (aTSA) and
- reverse total shoulder arthroplasty (rTSA).

# Device Description

The subject of this Traditional 510(k) is REAL INTELLIGENCE CORI XT (CORI XT), a robotic orthopedic surgical navigation and burring system. Like its predecessor, REAL INTELLIGENCE CORI (K240139), CORI XT uses established technologies of navigation via a passive infrared tracking camera. CORI XT aids the surgeon in planning the surgical implant location and in executing the surgical plan by controlling the cutting engagement of the surgical bur. CORI XT intraoperative software controls the cutting engagement of the surgical bur based on its proximity to the planned target surface. The cutting control is achieved with two modes:

- Exposure control adjusts the bur's exposure with respect to a guard.
- Speed control regulates the signal going to the motor control module.

When the surgeon encroaches on a portion of bone that is not to be cut per the surgeon's plan, the robotic system will disable cutting by retracting the bur inside the guard or by limiting the speed of the drill. Alternatively, the surgeon can disable both cutting controls and operate the robotic drill as a standard navigated surgical drill.

K252841

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Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, Pennsylvania 15222
USA
T: 412-683-3844
www.smith-nephew.com
SmithNephew
Blue Belt Technologies, Inc. is a subsidiary of Smith & Nephew, Inc.

# Currently Supported Knee Implants

The following Smith+Nephew knee implants are supported on CORI XT:

Table 1: Currently Supported Smith+ Nephew Knee Implants

| Implant Model Name | 510(k) Number | Classification Product Code |
| --- | --- | --- |
| JOURNEY II Unicompartmental Knee System | K191211 | HSX |
| JOURNEY II CR | K121443 | JWH |
| JOURNEY II BCS | K111711 | JWH |
| JOURNEY II XR | K141471, K152726 | JWH |
| LEGION CR/PS | K951987, K962557, K093746 | JWH |
| LEGION Porous CR Femoral Components | K073325, K091543 | MBH |
| LEGION Porous CR Narrow Femoral Components | K210566 | MBH |
| LEGION Porous Tibia | K100897 | MBH |
| Porous Tibia Baseplate | K211221 | MBH |
| GENESIS II CR/PS | K951987, K962557 | JWH |
| ANTHEM | K142807 | JWH |
| SMITH & NEPHEW, INC. REVISION KNEE SYSTEM | K043440 | JWH |
| REVISION KNEE SYSTEM | K041106 | JWH |
| LEGION RK TIBIAL WEDGES (Hemi-Step & Full-Step) | K953274 | JWH |
| LEGION COBALT CHROME REVISION KNEE SYSTEM | K060742 | JWH |
| LEGION Knee System | K180334 | JWH, MBH |

# Currently Supported Shoulder Implants

The following Smith+Nephew shoulder implants are supported on CORI XT:

Table 2: Currently Supported Smith+ Nephew Shoulder Implants

| Implant Model Name | 510(k) Number | Classification Product Code |
| --- | --- | --- |
| AETOS Implant system | K230572, K220847 | KWS |

K252841

{7}

Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, Pennsylvania 15222
USA
T: 412-683-3844
www.smith-nephew.com
SmithNephew
Blue Belt Technologies, Inc. is a subsidiary of Smith & Nephew, Inc.

# Discussion of Similarities and Differences

Blue Belt Technologies believes that CORI XT is subject to premarket notification requirements under Section 510(k) of the Federal Food, Drug and Cosmetic Act ("FFDCA" or "the Act") and is substantially equivalent to the primary predicate, REAL INTELLIGENCE CORI (K240139) and the secondary predicate device, ExactechGPS Total Shoulder Application (K213546).

Table 3: Primary Predicate Device

| Manufacturer | Description | Submission Number | Clearance Date |
| --- | --- | --- | --- |
| Blue Belt Technologies, Inc. | REAL INTELLIGENCE CORI | K240139 | January 18, 2024 |

Table 4: Secondary Predicate Device

| Manufacturer | Description | Submission Number | Clearance Date |
| --- | --- | --- | --- |
| Blue Ortho | ExactechGPS Total Shoulder Application, Equinoxe Planning Software | K213546 | January 06, 2022 |

Table 5: Summary of Technological Similarities with Predicates

| Feature | Proposed Device
REAL INTELLIGENCE CORI XT | Primary Predicate Device
REAL INTELLIGENCE CORI
(K240139) | Additional Predicate Device
ExactechGPS Total
Shoulder Application,
Equinoxe Planning
Software (K213546) |
| --- | --- | --- | --- |
| Intended Use | REAL INTELLIGENCE CORI XT (CORI XT) is intended to assist the surgeon in providing software-defined spatial boundaries for orientation and reference information to anatomical structures during orthopedic procedures. | REAL INTELLIGENCE CORI (CORI) is intended to assist the surgeon in providing software-defined spatial boundaries for orientation and reference information to anatomical structures during orthopedic procedures. | The ExactechGPS is intended for use during preoperative planning and during orthopedic surgery to aid the surgeon in locating anatomical structures and aligning the endoprosthesis with the anatomical structures provided that the required anatomical landmarks can be identified on the patient's preoperative CT scan. |
| Indications for Use | REAL INTELLIGENCE CORI XT is indicated for use in surgical procedures, in which the use of stereotactic surgery may be appropriate, and where reference to rigid anatomical bony structures can be determined. These procedures include: | REAL INTELLIGENCE CORI is indicated for use in surgical procedures, in which the use of stereotactic surgery may be appropriate, and where reference to rigid anatomical bony structures can be determined. These procedures include: | The ExactechGPS Total Shoulder Planning Application is specifically indicated for pre-operative planning of Total Shoulder Arthroplasty using the Equinoxe system. The ExactechGPS Total Shoulder Planning Application permits to visualize, measure and reconstruct anatomical |

K252841

{8}

Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, Pennsylvania 15222
USA
T: 412-683-3844
www.smith-nephew.com
SmithNephew
Blue Belt Technologies, Inc. is a subsidiary of Smith & Nephew, Inc.

| | • unicondylar knee replacement (UKR),
• total knee arthroplasty (TKA),
• revision knee arthroplasty,
• anatomic total shoulder arthroplasty (aTSA), and
• reverse total shoulder arthroplasty (rTSA) | • unicondylar knee replacement (UKR),
• total knee arthroplasty (TKA),
• revision knee arthroplasty, and
• total hip arthroplasty (THA). | structures in order to select and place the glenoid and humeral components. The ExactechGPS Total Shoulder Navigation Application is specifically indicated for Total Shoulder Arthroplasty using the Equinoxe system to aid the surgeon in locating anatomical structures and aligning the glenoid component with the anatomical structures. |
| --- | --- | --- | --- |
| Supported Product Codes | Supported Knee Product Codes: HSX, JWH, MBH
Supported Shoulder Product Code: KWS | Supported Knee Product Codes: HSX, JWH, MBH, NJD | Supported Shoulder Product Code: KWS |
| Technological Characteristics | Same as primary predicate | CORI aids the surgeon in planning the surgical implant location and in executing the surgical plan by controlling the cutting engagement of the surgical bur. CORI intraoperative software controls the cutting engagement of the surgical bur based on its proximity to the planned target surface. The cutting control is achieved with two modes:
• Exposure control adjusts the bur's exposure with respect to a guard.
• Speed control regulates the signal going to the motor control module.

When the surgeon encroaches on a portion of bone that is not to be cut, the robotic system will disable cutting by retracting the bur inside the guard or by limiting the speed of the drill. | N/A |

K252841
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Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, Pennsylvania 15222
USA
T: 412-683-3844
www.smith-nephew.com
SmithNephew
Blue Belt Technologies, Inc. is a subsidiary of Smith & Nephew, Inc.

# Non-Clinical Testing (Bench)

Design verification and validation testing demonstrated that CORI XT meets all design requirements and is as safe and effective as its primary predicate device (K240139) and additional predicate device (K213546). Comprehensive performance testing demonstrated that the system meets required design inputs. Additionally, the following evidence was provided:

- Software verification testing, including software integration and workflow testing, was completed. Software was developed in accordance with IEC 62304 Medical device software - Software life cycle processes, and this submission contains documentation per the requirements of FDA's Guidance for the Content of Premarket Submissions for Device Software Functions.
- Biocompatibility evaluation demonstrating that the system satisfies the requirements of BS EN ISO 10993-1 Biological Evaluation of Medical Devices - Part 1: Evaluation and Testing within a risk management process.
- Safety and Electromagnetic Compatibility (EMC) testing demonstrating that the device complies with IEC 60601-1 Medical Electric Equipment – Part 1: General Requirements for Basic Safety and Essential Performance and IEC 60601-1-2 Medical Electrical Equipment - Part 1-2: General Requirements For Basic Safety And Essential Performance - Collateral Standard: Electromagnetic Disturbances - Requirements and Tests.
- Accuracy and Usability Engineering Validation Testing demonstrating that representative users were able to use CORI XT safely and effectively in a simulated use environment through sawbone and cadaver models. Human factors and usability engineering processes were followed per IEC 62366-1:2015+A1:2020 Application of Usability Engineering to Medical Devices.

Per Human Factors evaluation, CORI XT has been found to be safe and effective for the intended users, uses, and use environments to support orthopedic surgeons in performing robotic Total Knee Arthroplasty (TKA), Unicondylar Knee Arthroplasty (UKA), Revision Knee Arthroplasty (RKA), anatomic Total Shoulder Arthroplasty (aTSA) and reverse Total Shoulder Arthroplasty (rTSA).

# Conclusion

The subject device, CORI XT, described in this submission has the same intended use and fundamental scientific technology as the primary predicate device, CORI (K240139). CORI XT indications for use include: unicondylar knee replacement (UKR), total knee arthroplasty (TKA), revision knee arthroplasty, anatomic total shoulder arthroplasty (aTSA), and reverse total shoulder arthroplasty (rTSA). Inclusion of TSA procedures aligns with the additional predicate, ExactechGPS (K213546). Like ExactechGPS, CORI XT will aid the surgeon in the placement of glenoid and humeral components and support anatomic and reverse total shoulder arthroplasty.

K252841

{10}

Blue Belt Technologies, Inc.
2875 Railroad Street
Pittsburgh, Pennsylvania 15222
USA
T: 412-683-3844
www.smith-nephew.com
SmithNephew

Blue Belt Technologies, Inc. is a subsidiary of Smith & Nephew, Inc.

The key determining factor in establishing substantial equivalence is whether CORI XT can accurately accomplish the desired bone cutting in accordance with the surgical plan. The comparative results of the cut-to-plan accuracy, indicate that CORI XT implant placement accuracy data is acceptable and equivalent to the primary predicate, CORI, for knee procedures, and the secondary predicate, ExactechGPS, for shoulder procedures. The usability testing results demonstrate that representative users are able to use the subject device safely and effectively in a simulated use environment. Blue Belt Technologies, Inc. has concluded that all design inputs have been met and that the verification and validation testing performed did not raise any new questions of safety or effectiveness.

Summative usability validation testing established that representative users can use the subject device safely and effectively in a simulated use environment.

The information presented in this Traditional 510(k) premarket notification demonstrates that CORI XT is as safe and effective as the predicate CORI (K240139) and additional predicate ExactechGPS Total Shoulder Application (K213546). Blue Belt Technologies believes that FDA can find CORI XT to be substantially equivalent to the primary and additional predicate devices.

K252841
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