zwick testing solutions for biomechanics & orthopaedics
TRANSCRIPT
OVERVIEW
Intelligent testing
Zwick Testing Solutions
for Biomechanics &
Orthopaedics
Standards:
ISO 7206-4:2002; ASTM F 1612-95 (determination of endurance properties of stemmed femoral components, 5 million cycles, 15 Hz)
ISO 7206-8:1995 (specification for endurance of stemmed femoral components with application of torsion)
simulates and measures the natural wear of the joint in a shorter time for different body weights and types/level of activities
allows designers to develop improved prostheses with a reduced chance of implant failure for patients of different weight and activity levels
10kN or 25kN servo-hydraulic machine, optionally with temperature-conditioned water-bath
Biomechanics & orthopaedics
Durability of hip-joint implants
Amsler HC 10 Hip joint
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ISO 7206-9:1994 (method for determination of resistance to torque of head fixation of stemmed femoral components).
This test involves determining resistance to torque between the femoral head and the femoral stem.
Allows designers to develop improved fixation between the two components.
Zwick 20kN static biaxial testing machine with 500 Nm torque drive.
A static compressive preload is applied, then the transverse torque is increased until the head begins to rotate.
Biomechanics & orthopaedics
Zwick Z020 testing machine for compression and torque testing on
femoral head and stem of a hip implant
Component fixing in hip implants
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ASTM F 1717 (method for static and fatigue testing of spinal implant assemblies in a vertebrectomy model)
HC10 servo-hydraulic testing machine
integrated low-noise hydraulic pump
flexible fixture and specimen mounting via T-slotted table
easy, safe operation via proven software-controller combination
ASTM F 1717-04 fatigue test
6 samples
up to 5 million cycles
frequency up to 5 Hz
customer-specific: additional torsion drive
Biomechanics & orthopaedics
Durability of spinal implants
Zwick HCT25 testing machine for compression tests on a spinal
vertebrectomy model
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Mmax: 50 Nm
Dynamic: +- 20°
Static: 90°
Biomechanics & orthopaedics
Torsion test kit for static tests Torsion test kit for fatigue tests
Testing methods on spinal implants ASTM F2077
Torsion (static & dynamic)
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Biomechanics & orthopaedics
Testing methods on knee products (ISO 14879 or ASTM F1820)
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Biomechanics & orthopaedics
Testing trauma products
Fatigue in nails (ASTM F1264)
Tightening/unscrewing test on bone screws Fatigue in angled plates (ASTM F384) Screw pull-out tests (ASTM F543)
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Biomechanics & orthopaedics
This specification includes two test methods:
Single Cycle Bend Text
Bending Fatigue Test
optionally with displacement
transducer for direct
measurement of deflection
on the osteosynthesis specimen.
Fatigue test on plates acc. to ASTM F 382
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Biomechanics & orthopaedics
testing components,
implants, functions
lowest calibrated force
0.02 N
Combination with laserXtens Compact
PrecisionLine Vario Stapes prosthesis
(Heinz Kurz GmbH Medizintechnik)
Testing micro-components
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Contact
Zwick GmbH & Co. KG
August-Nagel-Str. 11
89079 Ulm, Germany
Tel: +49 7305 - 10-0
Fax: +49 7305 - 10-200
www.zwick.com/medical
Connect with us:
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Science blog
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