MTS Bionix EM Electromechanical Torsion and Tensile Testing System
| Brand | MTS |
|---|---|
| Origin | USA |
| Model | MTS Bionix EM |
| Type | Electromechanical Universal Testing System for Biomedical Torsion & Tensile Applications |
| Compliance Context | Designed for ISO 17025-accredited labs, supports GLP/GMP documentation workflows, compatible with FDA 21 CFR Part 11–compliant audit trails when configured with validated TestWorks software modules |
Overview
The MTS Bionix EM Electromechanical Torsion and Tensile Testing System is an integrated, high-fidelity biomechanical test platform engineered specifically for the evaluation of orthopedic implants, surgical instruments, suture materials, bone anchors, spinal fixation components, and other critical medical devices. Unlike general-purpose universal testing machines, the Bionix EM employs a dual-axis electromechanical architecture that enables synchronized or independent application of axial tensile/compressive loads and rotational torque—within a single, compact test frame. Its measurement principle is based on precision load cell transduction (axial) and torque sensor feedback (rotational), coupled with closed-loop digital motion control via the MTS Digital Controller. This architecture ensures traceable force resolution down to 0.01 N and torque resolution to 0.001 N·m, supporting rigorous validation per ASTM F543 (metallic bone screws), ISO 14801 (dental implants), and ISO 7206-4 (femoral stems), while maintaining mechanical stability under dynamic cyclic loading up to 10 Hz.
Key Features
- Modular dual-actuator design: Independent linear and rotary axes enable true biaxial loading protocols—including torsion-tension coupling, torsional fatigue, and multi-step ramp-hold sequences.
- MTS Digital Controller: Real-time PID-controlled actuation with sub-millisecond sampling, programmable through TestWorks software; supports user-defined control modes (load, displacement, torque, angle, or hybrid).
- Compact footprint (< 0.8 m²): Optimized for cleanroom-integrated lab environments and ISO Class 7/8 biomedical testing suites.
- Interchangeable load frames and fixtures: Includes standardized ISO/ASTM-compliant grips, torsion collets, and implant-specific adapters (e.g., for pedicle screw head testing per ASTM F1717).
- Thermal-stable structural frame: Cast aluminum base with hardened steel guide columns minimizes thermal drift and vibration coupling during low-force micro-torque measurements.
- Compliance-ready configuration options: Optional IQ/OQ documentation packages, electronic signature support, and 21 CFR Part 11 audit trail logging available through validated TestWorks v5.x software deployment.
Sample Compatibility & Compliance
The Bionix EM accommodates specimens ranging from 2 mm diameter suture strands to 200 mm long spinal rods, with standard test specimen geometries defined in ISO 5832-1 (titanium alloys), ASTM F2503 (MRI safety labeling), and USP (mechanical testing of absorbable polymers). Fixture interfaces conform to ISO 26203-2 for torsional testing of orthopedic fasteners. All force and torque calibrations are traceable to NIST standards, and system-level verification follows ISO/IEC 17025 requirements for accredited testing laboratories. The platform is routinely deployed in preclinical R&D labs and contract testing facilities supporting IDE submissions to the U.S. FDA and CE Mark technical documentation under MDR Annex II.
Software & Data Management
TestWorks software provides full lifecycle test management—from method creation and instrument calibration tracking to raw data export (CSV, XML, HDF5) and automated report generation. Method templates include preconfigured protocols for ASTM F2193 (cortical bone screw pullout), ISO 14801 (implant-abutment interface torque), and ISO 7206-4 (static bending of femoral stems). Data integrity safeguards include time-stamped operator logins, immutable test records, version-controlled method libraries, and optional integration with LIMS platforms via ODBC or REST API. When deployed in regulated environments, TestWorks supports electronic signatures, role-based access control, and audit trail review functions compliant with FDA 21 CFR Part 11 and EU Annex 11.
Applications
- Mechanical validation of resorbable polymer screws and plates under combined torsion-tension loading.
- Static and cyclic torsional fatigue testing of intramedullary nails per ISO 5832-3.
- Quantification of insertion torque–removal torque hysteresis in dental implant systems.
- Shear strength evaluation of bone–implant interfaces using custom shear fixtures.
- Dynamic characterization of suture knot security under physiological loading rates (0.1–5 mm/min).
- Verification of manufacturing consistency for orthopedic tooling (e.g., torque-limiting drivers, reduction forceps).
FAQ
Is the MTS Bionix EM suitable for ISO 17025 accreditation?
Yes—the system’s metrological traceability, documented calibration procedures, and TestWorks software’s audit trail capabilities support laboratory accreditation under ISO/IEC 17025:2017.
Can the Bionix EM perform both static and dynamic tests?
Yes—it supports quasi-static tests (0.001–500 mm/min) and dynamic cyclic loading up to 10 Hz with amplitude control within ±0.5% of setpoint.
Does MTS provide application-specific fixture design support?
Yes—MTS Application Engineering offers custom fixture development services aligned with ASTM, ISO, and internal device specifications, including finite element–informed load-path validation.
What software validation packages are available for regulated environments?
IQ/OQ documentation kits, 21 CFR Part 11 compliance add-ons, and GxP-aligned test method templates are available upon request and require site-specific installation qualification.
Is remote operation supported?
Yes—TestWorks supports secure remote monitoring and limited control via TLS-encrypted network connections, subject to local IT security policy approval.
