Problems of development of stereotaxic guidance systems designed to control surgical instruments, illustrated by brain biopsy

摘要

A description of carrying out brain biopsy was examined.It is emphasized that one of the major problems is to position the instrument precisely and to maintain a safe trajectory while carrying out the operation.A disadvantage of traditional stereotaxic systems, apart from constructive disadvantages (long preparation and repeated operations have to be carried out in case of multi-target procedures), is that it doesn't have the ability to observe the effectiveness of surgical manipulation in the target object in real time and, therefore, to reveal ongoing intracranial complications.Modern technologies which use robotic-manipulators allow to increase accuracy, speed and safety in high-precision operations simultaneously.The need for accuracy in positioning the instruments and automated support system are discussed in detail.