Series II Multi-specimen Test Instruments0 pages

ElectroForce® Multi-specimen
ttttttFatigue Test Instruments
Fatigue Testing of
tttNitinol Materials
tttttand Structures
To reduce time and costs for developing fatigue life (s/n) curves for NiTi, CoCr,
and SS stent materials and structures, Bose has configured multi-specimen test
systems utilizing the versatility of the ElectroForce® 3200 Series III and 3330
Series II test instruments. Both systems include the enhanced measurement
capability of the Bose® High Accuracy Displacement Sensor. This enables an
even wider range of testing by improving low-amplitude displacement
measurements, all through a single, easy-to-use displacement channel. The
sensor is calibrated to the highest accuracy class, Class A, of ASTM E-2309.
ElectroForce multi-specimen fatigue test systems are designed to provide
tension-tension, or compression-compression displacement controlled loading
for small soft structures and devices, such as stents, stent structures, stented
grafts, vena cava filters, septal patch structures or other similar devices.
The multi-specimen loading sites and a temperature controlled saline bath are
integrated into the 3200 or 3330 loading system to provide computer controlled
axial displacement for all loading stations. Each loading site has an
independent load cell that may be used to monitor the load on each test
specimen, or for failure detection. Standard ElectroForce 3200 Series III or
3330 Series II multi-specimen systems are available with 12 loading sites, and
optional 20 site configurations or higher force 6 site configurations are available
with longer delivery. ElectroForce 3200 and 3330 multi-specimen fatigue testing
systems can be used for high cycle fatigue life characterization of:
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Coronary and vascular device materials for s/n curve development:

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Diamond material samples

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ElectroForce® 3330 Series II
Multi-specimen Fatigue Test Instrument

V-shaped material samples

Coronary and vascular device structures:

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Stents (vascular and heart valve)

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Stent segments

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Vascular graft structures/hooks/wear

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Vena cava filter structures

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Septal closure devices

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Annuloplasty devices

ElectroForce Test Instrument Overview:
By incorporating proprietary Bose motor technologies and WinTest® controls,
ElectroForce instruments provide exceptional fidelity, precision and versatility for
a variety of test applications. The ElectroForce linear motor utilizes a simple and
durable moving-magnet design that provides excellent dynamic displacement
at accelerated test frequencies, and years of reliable operation. As a result,
ElectroForce test instruments have set a new standard for performance, simplicity
and elegance in a single test system.

37°C Circulating Saline Bath
with 12 Loading Sites