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Breakthroughs in modern spine research and the development of new therapeutic and curative techniques and technologies require an efficient and biomechanically accurate means of obtaining reliable test data.To meet this challenge, Applied Test Systems (ATS) has developed the ST21 and the ST21-TT Biomechanical Spine Test System, capable of performing flexion/extension, lateral bending, and torsion testing of cadaveric spine specimens in physiological loading conditions that simulate natural movement of the human spine through a full range of motion.The ST21 has been developed in close cooperation with major U.S. research universities to provide an improved testing setup that offers unhindered specimen access and unconstrained movements, resulting in superior test data and more reliable testing over a wider range of specimens, for solid results you and your team can depend on. |
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Key Features › A sturdy two-column frame with an offset testing area provides large specimen capacity and 360° access for efficient test setup and the use of various measurement devices. › Precision torque application provides un-restricted motion even on specimens with considerable movement (e.g., cervical) and supports high-demand cyclic testing in torsion, bending, and axial directions. › Crossheads are counterbalanced using constant-force springs and are mounted on roller-bearing slides with position locks to allow the vertical position of the cross-heads to be adjusted quickly and safely, while optional lateral adjustment of the crossheads permits numerous test setups. › A proprietary computer control system collects data that easily integrates into several popular motion-capture systems for rapid analysis, graphing, and report generation. Testing routines and pro-cedures can be programmed and stored for repeat testing, and software includes multilingual capabilities. |
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Specifications 20 Nm (14.75 ft.-lb.) torque capacity in both torsion and flexion/extension drives. 76.2 to 132.1 cm (30 to 52 in.) specimen mounting height (adjustable). 180° range of bending/flexion/extension load application. Torsion drive movement range: – X-axis (side-to-side): 31.8 cm (12.5 in.) – Y-axis (forward/back): 29.2 cm (11.5 in.) – Z-axis (up/down): 14.0 cm (5.5 in.) Bending/flexion/extension drive range: – X-axis (side-to-side): 31.8 cm (12.5 in.) – Y-axis (forward/back): 17.8 cm (7.0 in.) – Z-axis (up/down): 14.0 cm (5.5 in.) |
