Orthopedic Implants Compression Torsion Fatigue Testing System Orthopedic Implants Compression Torsion Fatigue Testing System Functional Parameters: → Orthopedic implants compression-torsion fatigue testing system, designed to evaluate the lifespan, failure modes, and wear conditions of orthopedic implants (such as intervertebral fusion devices, shoulder joints, knee joints, intramedullary nails, etc.) under dynamic loads including tension-compression and rotational reciprocating motions. Complies with YY/T0959-2014 Test Method for Mechanical Properties of Spinal Implants - Intervertebral Fusion Devices; YY/T1634-2018 Dynamic Evaluation Test Method for Glenoid Loosening or Separation of Joint Replacement Implants - Shoulder Prostheses; YY/T0857-2011 Test Method for Spinal Implants in a Vertebrectomy Model (for testing dynamic compression of posterior spinal rod-screw systems); ASTM F2777-16 Standard Test Method for Evaluating the Durability and Deformation of Knee Braces (Tibial Inserts) Under High Flexion Conditions. → Vertical dynamic load ±30kN, frequency 0.2–5Hz, stroke ±50mm, amplitude ±50mm, sinusoidal wave loading. → Horizontally adjustable load 1000N (manual), shear displacement. → Rotational torque load ±30Nm, rotation angle ±30°, frequency 0.2–5Hz. → High-rigidity load frame, compression-torsion fatigue test area ≈600x600mm. → 30kN/30N.m high-precision symmetrical fatigue-grade compression-torsion composite sensor; HRJ-Test dual-channel dynamic controller; water bath circulation system and heating system; anatomical shoulder joint biaxial test device (shear force and axial force pulley and guide wheel fixture); knee brace evaluation test device under high flexion conditions. | 
