Development and Characterisation of New Hydrogels for Medical Science Education

Abstract

Organ models that resemble the original anatomy are needed in the education and training of human and veterinary doctors. The organs should be as close as possible to the original in shape, colour and feel. Furthermore, these organ models must be able to be handled in such a way that they can be examined by palpation and imaging (ultrasound, X-ray, CT and endoscopy). The diagnostic procedures should detect pathologies such as cysts, tumours, ruptures, haemorrhages or air collections. Following the diagnostic measures, it must be possible to initiate a therapy. Possible therapeutic measures are surgery with a scalpel, electrosurgery or puncture. The present work deals with the production of training models by means of a casting process. With this method, the models can be produced quickly and at low cost. Different compositions of hydrogels and other biomaterials are investigated. These gels are examined for the following properties, among others: thermostability, electrical conductivity and dimensional stability under pressure. Other parameters such as pot life, cross-linking time and durability in relation to mould formation will also be considered.