ElectroForce® 5900 BioDynamic® Test Instrument

Overview

Bose Corporation has developed a multi-specimen ElectroForce® BioDynamic® test instrument for intervertebral disc and other orthopaedic applications to mimic the complex loading that tissues experience in vivo. Spinal discs, cartilage and bone tissues, scaffolds and tissue-engineered constructs can be characterized under multiaxial stimulation.

The 5900 BioDynamic test instrument accommodates four disc specimens in a single chamber mounted between porous compression platens. The specimens are subjected to axial compression, pulsatile flow through porous platens, and radial cyclic hydrostatic pressure while maintaining sterility in a cell culture incubator. All system components in contact with the samples and the fluid are sterilizable to allow long term stimulation and characterization in an incubator.

Key Features

• The chamber accommodates 4 samples with a clear membrane sheath surrounding each sample circumferentially
• The chamber’s cyclic hydrostatic pressure is exerted on each sample via the flexible membrane and is the same for all 4 samples.
• Each sample has its own load cell as well as two pressure transducers, one upstream (flow inlet) and one downstream (flow outlet) of each sample while an additional pressure transducer measures chamber pressure.

Technology Benefits

Specific Test Configurations

5900 Axial/Pulsatile/Hydrostatic

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5900 Axial/Hydrostatic

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