Instron's MT torsion testing systems follow ASTM A938 and ISO 7800 standards for twist testing wire on the longitudinal axis until it breaks.
ASTM F1717 defines methods for static, fatigue, and torsion testing of spinal constructs to minimize failure from normal patient activity and fatigue.
ASTM F2077 reveals the axial-compression, compression-shear, and torsion tests needed to understand spinal intervertebral body fusion devices.
With Machine Solutions Incorporated, Instron has developed the RX575 and RX675 systems to test interventional devices like stents with compression and expansion.
The 8874 axial torsion system aligns with the needs of static and cyclic testing on implants for spinal intervertebral disc prostheses in accordance with ASTM F2346.
After orthopedic reconstructive surgery, metallic bone plates need to help the bone heal while supporting the bone segments, and flexural fatigue testing is needed.
From ASTM F543 and ISO 6475, bone screw manufacturers are required to use torque tests to replicate the torsional forces from implantation in surgery.
In vitro conditions need to be reproduced when testing the axial loading needed to insert a bone screw into laboratory material following ASTM F543.
While a high temperature test took place inside an environmental chamber, a specially designed ball indent test fixture adjusted the pushrods.
To prevent drill tip failure from cyclic loads and amplitude vibrations, test the drill tips with a 8874 testing system with compression and torsional loads.
A RX575 system can measure the radial expansion forces of a embolic filter to prevent dislodged material in interventional procedures.
The 8874 system can test the laxity of knee joints in simulated conditions before they are used for a total knee replacement and impacted by the surgery.