(191 days)
No
The document describes a mechanical implant (offset stem adapter for a knee system) and its material properties and mechanical testing. There is no mention of software, algorithms, or data processing that would indicate the use of AI/ML.
Yes.
The device is used in knee arthroplasty to reduce or relieve pain and improve knee function in patients with severe knee conditions, which aligns with the definition of a therapeutic device.
No
Explanation: The device is a total knee system component (Offset Stem Adapter) used in knee arthroplasty to mechanically augment and stabilize the knee joint. Its purpose is to physically restore function and relieve pain, not to diagnose a condition.
No
The device description explicitly states it is manufactured from Ti-6AI-4V alloy and is a physical component (Offset Stem Adapter) intended for surgical implantation.
No, this device is not an IVD (In Vitro Diagnostic).
Here's why:
- Intended Use: The intended use clearly describes a device used in the body during surgery (knee arthroplasty) to address structural and functional issues of the knee joint. IVDs are used outside the body to examine specimens (like blood, urine, or tissue) to provide information about a person's health.
- Device Description: The description details a physical implant made of metal (Ti-6AI-4V alloy) designed to be assembled with other components of a knee replacement system and implanted into bone. This is characteristic of a surgical implant, not an IVD.
- Anatomical Site: The device is used in the "Knee joint," which is an anatomical location within the body. IVDs analyze samples taken from the body.
- Performance Studies: The performance study mentioned is a "fatigue strength test," which is relevant to the mechanical integrity of an implant, not the analytical performance of a diagnostic test.
In summary, this device is a surgical implant used in knee replacement surgery, not a diagnostic tool used to analyze biological samples.
N/A
Intended Use / Indications for Use
This device is indicated in knee arthroplasty for reduction or relief of pain and/or improved knee function in skeletally mature patients with severe knee pain and disability due to rheumatoid arthritis, osteoarthritis, primary and secondary traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral condyle or pseudogout, posttraumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy, moderate valgus, varus, or flexion contraction. This device is intended for use in patients who require augmentation and/or stem extensions due to inadequate bone stock and/or require constrained stabilization for tibiofemoral joint due to soft tissue imbalance.
Product codes
JWH
Device Description
"UNITED" U2 Total Knee System – PSA Type, Offset Stem Adapter is a modification of cleared Offset Stem Adapter (K082424). This device is manufactured from Ti-6AI-4V alloy (ASTM F136) and identical to the previously cleared offset stem adapter. The Offset Stem Adapter is intended for use in patients with inadequate bone stock. It allows the stem extension to be positioned away from the center of femoral or tibial component, and to center the stem extension within the bone medullar canal.
There are three available offset sizes for the subjected device including 2, 4 and 6mm. It is able to be assembled with the femoral component, tibial baseplate and stem component utilizing Morse taper locking mechanism, and the Morse taper design is identical to our cleared Offset Stem Adapter (K082424). The modification does not affect the intended use of the device or alter the fundamental scientific technology of the device.
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
Knee
Indicated Patient Age Range
Skeletally mature patients
Intended User / Care Setting
Not Found
Description of the training set, sample size, data source, and annotation protocol
Not Found
Description of the test set, sample size, data source, and annotation protocol
Not Found
Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)
A fatigue strength test was conducted to evaluate the configuration strength of the Offset stem adapter, and the test result demonstrated that this device is safe and effective.
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Not Found
Predicate Device(s)
Reference Device(s)
Not Found
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 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.
0
OCT 30 2013
510(k) Summary of Safety and Effectiveness
| Submitted by: | United Orthopedic Corporation |
|---|---|
| Address: | No 57, Park Ave 2, Science Park, Hsinchu 300, Taiwan |
| Phone Number: | +886-3-5773351 ext. 2212 |
| Fax Number: | +886-3-577156 |
| Date of Summary: | April 17, 2013 |
| Contact Person | Fang-Yuan Ho |
| Regulation and Document Management | |
| Proprietary Name: | U2 Total Knee System - PSA Type, Offset Stem Adapter |
| Common Name: | Semi-constrained total knee prostheses |
| Device Classification | Knee joint patellofemorotibial polymer/metal/polymer |
| Name and Reference: | semi-constrained cemented prosthesis per 21CFR 888.3560. |
| This falls under the Orthopedics panel. | |
| Device Class | Class II |
| Panel Code | Orthopaedics Device |
| Device Product Code: | JWH |
| Predicate Device: | 1. "UNITED" U2 Total Knee System – PSA Type (K082424) |
| 2. "BIOMET" Vanguard™ 360 Revision Knee System (K093293) | |
| 3. "MEDACTA" GMK® Total Knee System- Revision |
(K102437)
Device Description:
"UNITED" U2 Total Knee System – PSA Type, Offset Stem Adapter is a modification of cleared Offset Stem Adapter (K082424). This device is manufactured from Ti-6AI-4V alloy (ASTM F136) and identical to the previously cleared offset stem adapter. The Offset Stem Adapter is intended for use in patients with inadequate bone stock. It allows the stem
1
extension to be positioned away from the center of femoral or tibial component, and to center the stem extension within the bone medullar canal.
There are three available offset sizes for the subjected device including 2, 4 and 6mm. It is able to be assembled with the femoral component, tibial baseplate and stem component utilizing Morse taper locking mechanism, and the Morse taper design is identical to our cleared Offset Stem Adapter (K082424). The modification does not affect the intended use of the device or alter the fundamental scientific technology of the device.
Indications:
This device is indicated in knee arthroplasty for reduction or relief of pain and/or improved knee function in skeletally mature patients with severe knee pain and disability due to rheumatoid arthritis, osteoarthritis, primary and secondary traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral condyle or pseudogout, posttraumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy, moderate valgus, varus, or flexion contraction. This device is intended for use in patients who require augmentation and/or stem extensions due to inadequate bone stock and/or require constrained stabilization for tibiofemoral joint due to soft tissue imbalance.
Basis for Substantial Equivalence:
The intended use, raw material, design rationale and sterilization method of current submission device is substantially equivalent to legally marketed "UNITED" U2 Total Knee System - PSA Type (K082424), "BIOMET" VanguardTm 360 Revision Knee System (K093293) and "MEDACTA" GMK® Total Knee System- Revision (K102437).
Performance Data:
A fatigue strength test was conducted to evaluate the configuration strength of the Offset stem adapter, and the test result demonstrated that this device is safe and effective.
2
Image /page/2/Picture/0 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a stylized eagle with three stripes forming its body and wing. The eagle is positioned to the right of the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA", which is arranged in a circular fashion around the eagle.
DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
October 30, 2013
United Orthopedic Corporation Attn: Fang-Yuan Ho Regulatory Affairs Manager Number 57, Park Avenue 2, Science Park Hsinchu 300 TAIWAN
Re: K131116
Trade/Device Name: U2 Total Knee System - PSA Type, Offset Stem Adapter Regulation Number: 888.3560 Regulation Name: Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis Regulatory Class: Class II Product Code: JWH Dated: September 30, 2013
Received: October 1, 2013
Dear Fang-Yuan Ho:
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. Ilsting 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
3
Page 2 - Fang-Yuan Ho
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 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 Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resources/or 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 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/ResourcesforYou/Industry/default.htm.
Sincerely vours.
Erin|阿弥eith
for
Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
4
Indication for Use
510 (k) Number (if known): K131116
Device Name: U2 Total Knee System- PSA Type, Offset Stem Adapter
Indications for Use:
This device is indicated in knee arthroplasty for reduction or relief of pain and/or improved knee function in skeletally mature patients with severe knee pain and disability due to rheumatoid arthritis, osteoarthritis, primary and secondary traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral condyle or pseudogout, posttraumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy, moderate valgus, varus, or flexion contraction. This device is intended for use in patients who require augmentation and/or stem extensions due to inadequate bone stock and/or require constrained stabilization for tibiofemoral joint due to soft tissue imbalance.
Over-The-Counter Use Prescription Use AND/OR (Part 21 CFR 801 Subpart D) (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)
Casey L. Hanley, Ph.D.
Division of Orthopedic Devices
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