Design and Realization of Experimental Device for Particular Biomechanics

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en

The contribution deals with the testing of selected biomechanical components, total hip joint endoprosthesis and cervival fixators in particular. The device for testing the cervival fixators is designed and build. Currently we focus on mutual correction of motion. The motion on the experimental device is realized using stepper motors. Actuators are formed as stepper motors with gear. Using coupling those are connected to the coiling bowls which swing under the influence of brought torque and thus induce given load (inflexion). Another type of load of spine fixator is torsion, which is again induced using the stepper motor. The test element is made of two cervival vertebrae with intervertebral disk between. The test element is then bathed into the dentacryl and after curing it is put into the test machine bowls where it is fixed using screws. Test elements prepared this way is ready for the test. Test experiment was performed on the test device with the aim to determine the functionality of the device and possibilities of its enhancement. The experiments showed that the torsion and inflexion motion is not sufficiently coordinated. Technical problems were discovered in the control area connected to the requirements of interoperability of torsion and bending load of the test samples. Motor motion was synchronized and further measurement of spine segment with applied fixator was performed.

Particular Biomechanics, spine,

2007-07-09

Biomedical Enginering Society

Singapore

978-81-904262-8-2

Program and Abstracts

1–4

4