Artificial bioconstructions as behavioural systems.
Human organ replacement is studied from the biomechanical, ergonomic and biocybernetic viewpoint and a new concept of endoprosthetics based on these sciences is advanced. Criteria are formulated for the evaluation of complex living systems originating after biomaterials implantation. The ergonomic concept suggests that many clinical and technical problems of endoprosthetics can be solved by a systematic approach, by patient selection on psychological as well as engineering grounds and by effective guiding of the endoprosthetized outcome of the man-machine system, so that the aim of endoprosthetics is effective functioning of the established man-machine system. The need to provide communication between the endoprosthesis and the operator after complex bioconstructions have been implanted, as well as the importance of purposeful training to handle the new system, is emphasised. Tasks are set in the context of a behavioural system for physicians, design engineers and patients.