K Number
K203523
Date Cleared
2021-12-25

(389 days)

Product Code
Regulation Number
888.3030
Panel
OR
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The Fixone Hybrid Knotless Anchor is intended for fixation of suture (soft tissue) to bone in the shoulder, foot/ankle, knee and elbow in the following procedures:

Shoulder: Rotor Cuff Repair, Bankart Repair, Biceps Tenodesis, Acromio-Clavicular Separation Repair, Deltoid Repair, Capsular Shift or Capsulolabral Reconstruction;

Foot/Ankle: Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair;

Knee: Medial Collateral Ligament Repair, Lateral Collateral Ligament Repair, Posterior Oblique Ligament Repair, lliotibial Band Tenodesis;

Elbow: Biceps Tendon Reattachment, Ulnar or Radial Collateral Ligament Reconstruction

Device Description

The Fixone Hybrid Knotless Anchor is intended for reattaching soft tissue to bone with sutures. The anchor is manufactured from biodegradable materials (PLGA copolymer and β-TCP) and nonabsorbable PEEK tip. A nonabsorbable suture manufactured from cobraided UHMWPE and PET fibers is inserted into the anchor. The anchor is implanted using a provided driver.

This device is could used with instrument that manufactured by Aju Pharm Co.,Ltd. It is consist of 11 models. It provide non-sterile (user must sterilization before use).

AI/ML Overview

Here's a summary of the acceptance criteria and the study that proves the device meets them, based on the provided FDA 510(k) summary for the Fixone Hybrid Knotless Anchor.

1. Table of Acceptance Criteria and Reported Device Performance

Test ItemAcceptance CriteriaReported Performance
Mechanical Testing
External Surface (ASTM F2502, USP)Not explicitly stated in table, but implied to meet standards.Pass
MeasurementWithin 5% of the dimensions specified in specifications.Pass
Insertion Torque (ASTM F1839)Not less than 0.15 Nm.Pass
Fixation StrengthNot less than 100 N.Pass
Tensile Strength (suture threads)Not less than 34.5 N.Pass
Torsional TestMaximum torque should not be less than insertion torque. Anchor should endure movement of tissues and bones (Arthrex pull-out and cyclic pull-out testing cited as supporting this).Pass
Extraction TestNot explicitly stated in table.Pass
pHDifference should be 1.5 and less.Pass
Potassium Permanganate Reducing SubstancesDifference of consumption of potassium permanganate should be 2.0 mL and less.Pass
Residue after EvaporationWeight of the residue should be 1.0 mg and less.Pass
Heavy MetalsAny brown color produced within 10 minutes in the tube containing the extract of the prepared sample does not exceed that in the tube containing the standard lead solution.Pass
UV Spectrum (250nm~350nm)Maximum absorbance between 250 to 350 nm should be 0.1 and less.Pass
Property (Visual inspection)Test solution should be clear and have no foreign particles.Pass
Biocompatibility (Anchor)
Cytotoxicity (ISO 10993-5)Meets ISO 10993-5 criteria.Pass
Maximization test for delayed hypersensitivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Intracutaneous reactivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Acute Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Material-mediated Pyrogen (ISO 10993-11, USP39)Meets ISO 10993-11 criteria.Pass
Sub acute Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Bacterial reverse mutation test (ISO 10993-3, OECD 471)Meets ISO 10993-3 and OECD 471 criteria.Pass
Mammalian erythrocyte micronucleus test (ISO 10993-3, OECD 474)Meets ISO 10993-3 and OECD 474 criteria.Pass
Implantation test (ISO 10993-6, Annex D for bone)Meets ISO 10993-6 criteria for local effects after implantation in bone.Pass
Biocompatibility (Suture)
Cytotoxicity (ISO 10993-5)Meets ISO 10993-5 criteria.Pass
Maximization test for delayed hypersensitivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Intracutaneous reactivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Acute Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Material-mediated Pyrogen (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Sub acute Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Bacterial reverse mutation test (ISO 10993-3, OECD 471)Meets ISO 10993-3 and OECD 471 criteria.Pass
Mammalian erythrocyte micronucleus test (ISO 10993-3, OECD 474)Meets ISO 10993-3 and OECD 474 criteria.Pass
Implantation test (ISO 10993-6, 4 & 12 weeks)Meets ISO 10993-6 criteria for local effects after implantation.Pass
Biological risk assessmentAssessment according to ISO 10993-1, EN ISO 14971, FDA G95-1, EU Medical Device Directive. Examines components, literature, and history of safe use.-
Biocompatibility (Tip)
Cytotoxicity (ISO 10993-5)Meets ISO 10993-5 criteria.Pass
Maximization test for delayed hypersensitivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Intracutaneous reactivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Acute Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Material-mediated Pyrogen (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Sub acute Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Bacterial reverse mutation test (ISO 10993-3, OECD 471)Meets ISO 10993-3 and OECD 471 criteria.Pass
Mammalian erythrocyte micronucleus test (ISO 10993-3, OECD 474)Meets ISO 10993-3 and OECD 474 criteria.Pass
Implantation test (ISO 10993-6, Annex D for bone)Meets ISO 10993-6 criteria for local effects after implantation in bone.Pass
Biocompatibility (Colored Suture)
Cytotoxicity (ISO 10993-5)Meets ISO 10993-5 criteria.Pass
Maximization test for delayed hypersensitivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Intracutaneous reactivity (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Acute Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Material-mediated Pyrogen (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Sub chronic Systemic toxicity (ISO 10993-11)Meets ISO 10993-11 criteria.Pass
Bacterial reverse mutation test (ISO 10993-3, OECD 471)Meets ISO 10993-3 and OECD 471 criteria.Pass
Mammalian erythrocyte micronucleus test (ISO 10993-2, OECD 474)Meets ISO 10993-2 and OECD 474 criteria.Pass
Implantation test (ISO 10993-6, 4 & 12 weeks)Meets ISO 10993-6 criteria for local effects after implantation.Pass
Biocompatibility (Driver shaft - Stainless steel 304)
Cytotoxicity (ISO 10993-5)Meets ISO 10993-5 criteria.Pass
Intracutaneous reactivity test (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Maximization sensitization (ISO 10993-10)Meets ISO 10993-10 criteria.Pass
Sterilization & Shelf Life
Pyrogen (Material-mediated)Meets ISO10993-11, USP39 criteria.Pass
Shelf life testing (Accelerated aging)Real-time equivalent (RTE) and Accelerated aging temperature (Taa) as per AAMI TIR17 and ASTM F 1980-02 confirmed stability at 55±2°C for 229 days.Pass
Shelf life testing (Real-time)Physicochemical changes and packaging tested at 0, 1, 2, 3, 4, and 5 years for validity and safety per ISO 11607-1:2006, ISO 11607-2:2006. Valid for 5 years.Pass
EO sterilization Validation (EO residual test)ISO11135(2014) standards met.Pass
Endotoxin (USP 43 , LAL)Endotoxin level conforms.Pass

2. Sample Size for the Test Set and Data Provenance

The document describes bench testing for mechanical and biocompatibility properties. It doesn't specify a "test set" in the context of patient data or clinical images. The tests were performed on the device components themselves.

  • Sample Size: Not explicitly stated as a single number across all tests. Each test (e.g., tensile strength, insertion torque, various biocompatibility tests) would have its own sample size, which is not detailed but assumed to be sufficient for the relevant standards (e.g., ASTM, ISO, USP). For tensile strength, it mentions "measuring 10 suture threads."
  • Data Provenance: The studies were bench tests conducted by the manufacturer, AJU Pharm Co., Ltd., which is located in Korea. The details provided do not indicate the use of retrospective or prospective patient data, as this is a physical device rather than a diagnostic or AI-driven system.

3. Number of Experts Used to Establish Ground Truth and Qualifications

This information is not applicable to this type of medical device submission. The Fixone Hybrid Knotless Anchor is a physical surgical implant, not a device that generates or interprets diagnostic images or data requiring expert review for ground truth. The "ground truth" here is established through adherence to recognized international and national standards (e.g., ISO, ASTM, USP) for mechanical properties, material properties, and biocompatibility.

4. Adjudication Method for the Test Set

This is not applicable as there is no "test set" in the clinical imaging or diagnostic sense requiring expert adjudication. The performance is assessed against predefined quantitative and qualitative criteria in bench testing.

5. Multi Reader Multi Case (MRMC) Comparative Effectiveness Study

This is not applicable. The device is a surgical anchor, not an AI-assisted diagnostic tool or a system that involves human readers interpreting output. Therefore, there is no concept of improving human reader performance with or without AI assistance in this context.

6. Standalone (Algorithm Only Without Human-in-the-Loop Performance) Study

This is not applicable. The Fixone Hybrid Knotless Anchor is a physical medical device, not a software algorithm or an AI system.

7. Type of Ground Truth Used

The "ground truth" in this submission is established through:

  • International Standards: Adherence to widely recognized standards from organizations like ISO (e.g., ISO 10993 for biocompatibility, ISO 11135 for sterilization, ISO 11607 for packaging), ASTM (e.g., ASTM F2502, F1839, F1980-02 for mechanical and aging tests), and USP (e.g., USP for material properties, USP39 for pyrogen, USP 43 for endotoxin).
  • Predicate Device Comparison: The primary method for proving substantial equivalence is demonstrating that the test results of the Fixone Hybrid Knotless Anchor are comparable to a legally marketed predicate device (Fixone Biocomposite Anchor, K192484) and meet relevant performance benchmarks. The new device is substantially similar, with the only noted difference being the material of the tip (PEEK in the new device versus PLGA + β-TCP in the predicate).

8. Sample Size for the Training Set

This is not applicable. There is no "training set" as this is not a machine learning or artificial intelligence device.

9. How the Ground Truth for the Training Set Was Established

This is not applicable for the reasons mentioned above.

§ 888.3030 Single/multiple component metallic bone fixation appliances and accessories.

(a)
Identification. Single/multiple component metallic bone fixation appliances and accessories are devices intended to be implanted consisting of one or more metallic components and their metallic fasteners. The devices contain a plate, a nail/plate combination, or a blade/plate combination that are made of alloys, such as cobalt-chromium-molybdenum, stainless steel, and titanium, that are intended to be held in position with fasteners, such as screws and nails, or bolts, nuts, and washers. These devices are used for fixation of fractures of the proximal or distal end of long bones, such as intracapsular, intertrochanteric, intercervical, supracondylar, or condylar fractures of the femur; for fusion of a joint; or for surgical procedures that involve cutting a bone. The devices may be implanted or attached through the skin so that a pulling force (traction) may be applied to the skeletal system.(b)
Classification. Class II.