The EAUM Total Knee System is intended for use in total knee arthroplasty surgery for the following indications: Painful. disabling joint disease of the knee resulting from noninflammatory degenerative ioint disease (including osteoarthritis, traumatic arthritis or avascular necrosis) or rheumatoid arthritis: Post-traumatic loss of knee joint configuration and function; Moderate varus, valgus, or flexion deformity in which the ligamentous structures can be returned to adequate function and stability; Correction or revision of unsuccessful osteotomy, arthrodesis, or failure of previous arthroplasty procedure. The EAUM Total Knee System is intended for cemented use only.

Device Description

The EAUM Total Knee System is a patellofemoroltibial knee prosthesis system for cemented total knee arthroplasty. The EAUM Total Knee System consists of the following components: Femoral Components - eight (8) sizes in cruciate-retained (CR) and posterior stabilized (PS) designs, each for left and right sides; Tibial Baseplate (Tray) - nine (9) sizes for use on either the left or right side; Tibial Insert Components - nine (9) sizes for use on either the left or right side, with thicknesses ranging from 6 mm to 24 mm, provided in CR and PS designs; Patellar Components - five (5) sizes in two designs (dome and sombrero); and EAUM Total Knee Instrumentation for use with the system implant components. The components are manufactured from C-Cr-Mo alloy conforming to ASTM F75, Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075) and UHMWPE conforming to ASTM F648 Standard Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants, Type 1 (GUR 1020). The components are sterilized by gamma irradiation.

AI/ML Overview

The provided document is a 510(k) summary for the EAUM Total Knee System, a medical device for total knee arthroplasty. It does not contain information on acceptance criteria or a study that specifically proves the device meets acceptance criteria in the context of an AI/ML algorithm or diagnostic tool. Instead, it demonstrates substantial equivalence to predicate devices through design comparisons, material comparisons, and performance testing against established international standards for orthopedic implants.

Here's an analysis based on the information provided, recognizing that the request's format is geared towards AI/ML device descriptions, which this document is not:

1. A table of acceptance criteria and the reported device performance

This document does not specify "acceptance criteria" in the sense of performance metrics (e.g., sensitivity, specificity, accuracy) for an AI/ML algorithm. Instead, for this orthopedic implant, the "acceptance criteria" are implicitly met by demonstrating substantial equivalence to predicate devices and adherence to relevant international performance standards.

Acceptance Criteria (Implied by Substantial Equivalence and Standards)	Reported Device Performance (as stated in document)
Intended Use: Similar to predicate devices	Aligned with indications for total knee arthroplasty (osteoarthritis, rheumatoid arthritis, post-traumatic loss, deformity, revision of failed procedures).
Operating Principles: Same as predicate devices	EAUM Total Knee System uses the same operating principles as predicate devices.
Basic Designs: Similar to predicate devices	Components are similar in overall shape and design (femoral, tibial baseplate, tibial insert, patellar components). Includes CR and PS designs.
Materials: Same or very similar to predicate devices	Co-Cr-Mo alloy (ASTM F75) for femoral and tibial baseplate components. UHMWPE (ASTM F648, GUR 1020) for tibial insert and patellar components.
Packaging & Sterilization: Similar to predicate devices	Similar packaging and sterilized by gamma irradiation.
Performance Testing: Conformance to relevant standards (ISO 7207-2, ASTM F2083, ISO 7207-1, ISO 21536, ISO 14879-1, ASTM F1800, ASTM F1223, ASTM F1814, ISO 14243-1)	"Performance testing was conducted to demonstrate substantial equivalence and included methods described in the following standards: ISO 7207-2. ASTM F2083. ISO 7207-1. ISO 21536. ISO 14879-1, ASTM F1800, ASTM F1223, ASTM F1814, and ISO 14243-1." (No specific numerical results are provided in the summary, just that tests were conducted and support substantial equivalence).
No New Issues of Safety or Efficacy: Differences in technological characteristics do not raise new issues.	"Any differences in the technological characteristics between the subject and predicate devices do not raise new issues of safety or efficacy."

2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

Not applicable, as this is a medical device (implant) submission, not an AI/ML algorithm or diagnostic tool that uses patient data in a "test set" in this manner. The "test" mentioned relates to physical and mechanical testing of the implant.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)

Not applicable. This information is not relevant to an orthopedic implant submission.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set

Not applicable.

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

Not applicable. This is not an AI-assisted diagnostic device.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

Not applicable.

7. The type of ground truth used (expert concensus, pathology, outcomes data, etc)

For an orthopedic implant like the EAUM Total Knee System, the "ground truth" for demonstrating safety and effectiveness is primarily established through:

Established engineering and biological principles: Conformance to internationally recognized standards (e.g., ISO, ASTM) for materials, design, and mechanical performance.
Clinical history of predicate devices: The long-term performance and safety record of the substantially equivalent predicate devices inform the acceptability of the new device.
Material properties: Established safety and biocompatibility of the materials used (Co-Cr-Mo alloy, UHMWPE).

8. The sample size for the training set

Not applicable. This is not an AI/ML device.

9. How the ground truth for the training set was established

Not applicable.

Summary of the Study that Proves the Device Meets Acceptance Criteria:

The document describes a submission seeking substantial equivalence to legally marketed predicate devices. The study to "prove the device meets acceptance criteria" is primarily an engineering and comparative analysis, rather than a clinical trial with patient outcomes or an AI model validation.

The key components of this "study" are:

Design Comparison: Detailed comparison of the EAUM Total Knee System's femoral components, tibial baseplate, tibial insert, and patellar components to those of the predicate devices (DePuy Sigma Knee Femoral Adapter, Triathlon Total Knee System, Scorpio® NRG™ Knee System Components). This comparison covered overall shape, design features (e.g., CR/PS designs, stabilizing keel), and physical dimensions (AP/ML, thickness).
Material Comparison: Verification that the materials used (Co-Cr-Mo alloy, UHMWPE) conform to established ASTM standards (ASTM F75, ASTM F648) and are the "same or very similar" to those in predicate devices.
Performance Testing: Physical and mechanical testing was conducted on the device to demonstrate substantial equivalence. The summary states these tests "included methods described in the following standards: ISO 7207-2, ASTM F2083, ISO 7207-1, ISO 21536, ISO 14879-1, ASTM F1800, ASTM F1223, ASTM F1814, and ISO 14243-1." While specific results are not detailed in this summary, the completion of these tests according to recognized standards is key to demonstrating performance characteristics suitable for the intended use.
Intended Use Comparison: Confirmation that the indications for use are the same as or very similar to the predicate devices.

The conclusion drawn from this combination of comparative analysis and performance testing against recognized standards is that "Any differences in the technological characteristics between the subject and predicate devices do not raise new issues of safety or efficacy," thereby establishing substantial equivalence and implicitly meeting the "acceptance criteria" for market clearance.

Summary

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KII0404 EAUM Total Knee System

510(k) Summary

Corentec Co., Ltd.

EAUM Total Knee System

February 11, 2011

ADMINISTRATIVE INFORMATION

Manufacturer Name:	Corentec Co., Ltd.
	247 Giro-ri, Ipjang-myeon, Seobuk-Gu
	Cheonan-si, Chungcheongnam-do, 331-822 South Korea
	Telephone:	+82-41-585-7114
	Fax:	+82-41-585-7113
Official Contact:	J. S. Daniel
	Project Manager, Regulatory Affairs
Representative/Consultant:	Kevin A. Thomas, PhD
	Floyd G. Larson
	PaxMed International, LLC
	11234 El Camino Real, Suite 200
	San Diego, CA 92130
	Telephone:	+1 (858) 792-1235
	Fax:	+1 (858) 792-1236
	Email:	kthomas@paxmed.com flarson@paxmed.com

DEVICE NAME AND CLASSIFICATION

Trade/Proprietary Name:	EAUM Total Knee System
Common Name:	Total Knee Prosthesis System
Classification Regulations:	21 CFR 888.3560, Class II
Product Code:	JWH
Classification Panel:	Orthopedic Products Panel
Reviewing Branch:	Orthopedic Devices Branch

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K110404(2/3)
EAUM Total Knee System

INTENDED USE

The EAUM Total Knee System is intended for use in total knee arthroplasty surgery for the following indications:

Painful. disabling joint disease of the knee resulting from noninflammatory degenerative ioint disease (including osteoarthritis, traumatic arthritis or avascular necrosis) or rheumatoid arthritis:

Post-traumatic loss of knee joint configuration and function;

Moderate varus, valgus, or flexion deformity in which the ligamentous structures can be returned to adequate function and stability;

Correction or revision of unsuccessful osteotomy, arthrodesis, or failure of previous arthroplasty procedure.

The EAUM Total Knee System is intended for cemented use only.

DEVICE DESCRIPTION

EQUIVALENCE TO MARKETED DEVICES

Corentec Co., Ltd., submits the following information in this Premarket Notification to demonstrate that for the purposes of FDA's regulation of medical devices, the EAUM Total Knee System is substantially equivalent in indications and design principles to the following predicate devices, each of which has been determined by FDA to be substantially equivalent to pre-amendment devices:

DePuy Orthopaedics, Inc., DePuy Sigma Knee Femoral Adapter, K060515; Howmedica Osteonics Corp., Triathlon Total Knee System, K053514; and Howmedica Osteonics Corp., Scorpio® NRG™ Knee System Components, K030978.

The EAUM Total Knee System and the predicate devices are all patellofemoroltibial knee prosthesis systems, intended for cemented total knee arthroplasty, and all have similar indications for use.

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KI10404 (3/3) EAUM Total Knee System

The EAUM Total Knee System and the predicate devices are made of the same materials, Co-Cr-Mo alloy (femoral components and tibial baseplate components) and UHMWPE (tibial insert components and patellar components), and all are provided sterilized by gamma irradiation.

The subject and predicate devices all have femoral components designed specifically for the right and left knees, provided in a range of sizes, and all include cruciate retaining (CR) and posterior stabilized (PS) designs. Similarly, the subject device and the predicate devices all include universal tibial baseplate (tray) components for use on either the left or right tibia, and all tibial baseplates incorporate a similar stabilizing keel design. All devices also include UHMWPE tibial inserts in CR and PS designs for use with the corresponding femoral components.

The EAUM Total Knee System and the predicate device components are similar in overall shape and design. The subject device and the predicate devices encompass a similar range of physical dimensions, including the AP and ML dimensions of the femoral and tibial baseplate components, the thickness of the tibial insert components, and the thickness and diameter of the patellar components.

Any differences in the technological characteristics between the subject and predicate devices do not raise new issues of safety or efficacy.

Performance testing was conducted to demonstrate substantial equivalence and included methods described in the following standards: ISO 7207-2. ASTM F2083. ISO 7207-1. ISO 21536. ISO 14879-1, ASTM F1800, ASTM F1223, ASTM F1814, and ISO 14243-1.

Overall, the EAUM Total Knee System has the following similarities to the predicate devices:

has the same intended use. .
uses the same operating principles, .
incorporates the same basic designs, .
incorporates the same or very similar materials, and t
has similar packaging and is sterilized using the same materials and processes. ●

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DEPARTMENT OF HEALTH & HUMAN SERVICES

Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three stripes representing the department's mission. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" are arranged in a circular pattern around the eagle.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002

Corentec Corporation, LTD. % Mr. Kevin A. Thomas PaxMed International 11234 El Camino Real, Suite 200 San Diego, California 92130

FEB 1 6 2012

Re: K110404

Trade/Device Name: EAUM Total Knee System Regulation Number: 21 CFR 888.3560 Regulation Name: Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis Regulatory Class: Class II Product Code: JWH Dated: January 27, 2012 Received: January 30, 2012

Dear Mr. Thomas:

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

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Page 2 - Mr. Kevin A. Thomas

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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. 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 Small Manufacturers, International and Consumer Assistance 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.

Sincerely yours,

Mark N. Melkerson

Director Division of Surgical, Orthopedic, and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Indications for Use

K110404 510(k) Number:

EAUM Total Knee System Device Name:

Indications for Use:

The EAUM Total Knee System is intended for use in total knee arthroplasty surgery for the following indications: ·

Painful, disabling joint disease of the knee resulting from noninflammatory degenerative joint disease (including osteoarthritis, traumatic arthritis or avascular necrosis) or rheumatoid arthritis;

Post-traumatic loss of knee joint configuration and function;

Moderate varus, valgus, or flexion deformity in which the ligamentous structures can be returned to adequate function and stability;

Correction or revision of unsuccessful osteotomy, arthrodesis, or failure of previous arthroplasty procedure.

The EAUM Total Knee System is intended for cemented use only.

Prescription Use X (Part 21 CFR 801 Subpart D)

Over-The-Counter Use AND/OR (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Surgical, Orthopedic,
and Restorative Devices

510(k) Number K110404

Page 1 of -

Regulation Number and Section

§ 888.3560 Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis.

(a)
Identification. A knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a knee joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. This generic type of device includes prostheses that have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and a tibial component or components and a retropatellar resurfacing component made of ultra-high molecular weight polyethylene. This generic type of device is limited to those prostheses intended for use with bone cement (§ 888.3027).(b)
Classification. Class II.