Intervertebral Fusion Cages Torsion Fatigue Tester

Standard

YY/T 0959-2014 (China): Specifies torsional fatigue testing protocols for intervertebral fusion devices, including load ratios, frequency, and failure criteria.

ASTM F2077-17 (International): Defines methodologies for evaluating the fatigue strength of intervertebral body fusion devices under torsional loading.

ISO 12189-1: Additional compliance for mechanical testing of spinal implant components.

Product Advantages

Bidirectional Torsion Control: Advanced electromagnetic actuator maintains R=-1 load ratio (fully reversed torsion) with ±0.1% accuracy.

5 Million Cycle Endurance: Proven capability to complete YY/T 0959’s 5×10⁶-cycle fatigue test without calibration drift.

Dynamic Angle Control: 0.001° resolution ensures precise replication of physiological spinal motion.

Real-Time Fracture Detection: AI-powered acoustic emission monitoring identifies micro-cracks at sub-millisecond intervals.

Intuitive Workflow: 21.5” capacitive touchscreen with gesture control and pre-loaded SOPs for 8+ implant geometries.

Modular Environmental Chambers: Quick-swap pods for simulated physiological (-20°C to +50°C) and corrosive environment testing.

Product Features

Electromagnetic Servo Motor: 50 Nm peak torque capacity with programmable load ratios (R=-1 to R=0.1).

Torsional Actuator: ±180° rotation range with 0.001° angular resolution.

Dynamic Load Control: 0.1–5 Hz frequency range with programmable waveforms (sine, square, random, custom).

Thermal-Mechanical Chamber: ±0.3°C temperature stability with integrated humidity control (10–95% RH).

High-Speed Imaging Ready: Syncs with external cameras for full-field strain mapping (DIC optional upgrade).

Safety First: Triple-redundant emergency stop, overload clutches, and laser-based specimen breakage detection.

Technical Parameters

Parameter	Specification
Max. Torsional Moment	±50 Nm (10 Nm resolution)
Angular Range	±180° (0.001° resolution)
Frequency Range	0.1–5 Hz (0.01 Hz increments)
Load Ratio (R)	-1 to 0.1 (adjustable)
Temperature Control	-20°C to +50°C (PT1000 sensors)
Humidity Control	10–95% RH (non-condensing)
Data Sampling Rate	100 kHz (synchronized across 16 channels)
Power Requirements	220V/110V ±10%, 50/60Hz, 2.000W
Dimensions (W×D×H)	1.500 × 1.000 × 2.000 mm
Weight	750 kg (including environmental chamber)
Noise Level	<65 dB (A-weighted)

Accessories

Spinal Implant Fixture Kit:

Self-centering collet system (8–20 mm implant diameter compatibility)

Laser-aligned loading anvils with diamond-like carbon (DLC) coating

Thermal-Mechanical Chamber:

15L capacity with rapid cooling/heating (15°C/min)

316L stainless steel interior with HEPA filtration

TorsionMaster Pro Software:

Automated S-N curve generation and fatigue limit calculation

21 CFR Part 11-compliant audit trail with blockchain timestamping

Remote monitoring via dedicated iOS/Android app

Operator Kit:

Calibrated torque wrench set (0.5–50 Nm)

Specimen alignment gauges (ASTM F2077 compliant)

Calibration Bundle:

NIST-traceable torque calibration weights

Angular encoder verification tool

Safety Kit:

Laser safety curtains

Acoustic enclosure with 30 dB noise reduction

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