Enjoy the Benefits of the THELKIN Newsletter

Receive interesting news about new products, test applications, promotions and interesting facts in the field of testing technology.

Subscribe

ISO 9585

Osteosynthesis Implants

Dynamic testing machines from THELKIN are suitable for testing osteosynthesis plates in accordance with ISO 9585.

Background

The static and dynamic strength of bone plates or so-called osteosynthesis plates must be tested for research and development as well as for product approval. This test can be carried out in accordance with the ISO 9585 standard, which defines the methodology and parameters for the mechanical testing of the static and dynamic strength of osteosynthesis plates. The test is carried out according to standards in a three- or four-point bending test.

Test Setup

The static and dynamic strength of the bone plates are determined in three point or four point bending tests, whereby the bending device consists of two fixed and parallel supports. The bone plate is fixed or clamped on the specimen holder. 
A cyclic, sinusoidal load is applied to the implant via a punch until the specimen breaks or until the maximum number of cycles is reached. Testing in a liquid bath (heated to body temperature) with Ringer's solution increases the physiological relevance of the test. Force and displacement signals - i.e. the deflection of the sample - must be recorded during the test.

Equipment

The fatigue test according to ISO 9585 can be performed easily, reliably and reproducibly with servo-dynamic testing systems from THELKIN and the corresponding specimen holder:

  • THELKIN Servo-Dynamic Load Frame SDL-M-010 - complies with the specifications of the standard and enables simple and safe specimen mounting, programming of the test as well as data acquisition and test execution.
  • 4-Point-Bending Fixture FI.BE.4P - enables fast and precise positioning of the specimen.

The test system can also be equipped with an uninterruptible power supply, thus enabling long-term tests to be performed safely.

Osteosynthesis Implants ISO 9585
Osteosynthesis Implants ISO 9585 Fixture

THELKIN GmbH

Technoparkstrasse 2

CH-8406 Winterthur

Switzerland

Latest News