[FORMATION OF BILIODIGESTIVE ANASTOMOSES BY THE METHOD OF HIGH-FREQUENCY ELECTRIC WELDING].

The aim of the study was to develop a new method of formation of biliodigestive anastomoses, which would make it possible to form anastomoses both on unchanged bile ducts and in conditions of their inflammation. An experimental study was carried out on 50 rabbits of the "Chinshila" breed, which formed biliodigestive and interintestinal anastomoses by the method of high-frequency (HF) electric welding using the "Patonmed EKVZ-300" coagulator. Anastomoses were formed both on non-inflamed tissues and under conditions of biliary peritonitis.

[Analysis of tension-distraction state in the shin bones fractures in conditions of external fixation with application of apparatuses with different spatially oriented supports].

In Autodesk Inventor 11 program, using method of end-capping elements, a three- dimensional computeric modelling of biomechanical systems of two models was conducted: I - "tibia - Ilizarov's apparatus with concentric location of supports"; II - "tibia - Ilizarov's apparatus with excentric location of supports". The loading, which was applied towards distal fragment in 6 standard degrees of freedom, was modelled for studying of the fixation rigidity of tibial fragments in these systems. Determination of the loading value in various directions, in which the fragment have had shifted by 1 mm, have constituted the main task of the investigation.

[Experimental substantiation of the construction peculiarities of the universal apparatus, applied for transosseal osteosynthesis based on three-dimensional modelling].

Comparative analysis of constructive peculiarities was done for Ilizarov's apparatus and elaborated universal apparatus, which is applied in transosseal ostheosynthesis in fractures of the shin bones, basing on results of the three-dimensional computeric modelling. The universal apparatus due to its unification done secures possibility to conduct the individual selection of a support, using adaptation of their form to anatomic configuration of the injured segment. This permits to lower by 19 - 49.