Fundamentally new design of ultrasonic waveguide-catheter system to eliminate the obstruction of blood vessels was developed. The effect thrombus/plaques destruction is carried out by using a cavitation jet of liquid formed by supplying through internal cavity of concentrator-waveguide at its distal part simultaneously with ultrasound action. This kind of effect, unlike mechanical ...

Technological foundations for the manufacture of a concentrator-waveguide of complex shape with elements of low rigidity have been developed, which provide the required accuracy of dimensions and shapes, high surface quality, and improved physical and mechanical characteristics from corrosion-resistant steel 12Kh18N9. In practice, a technology for obtaining a stepped tubetype ...

The authors have developed a new method of polishing and cleaning the interior surfaces of long-length tubular products on the basis of electrolytic plasma treatment that – as compared to the existing methods – ensures a high-quality high intensity treatment using nontoxic, environmentally friendly, and cheap electrolytes. This paper presents the results of a study of the ...

Разработаны и исследованы режимы электрохимической прошивки, обеспечивающие формирование микроотверстий требуемой точности в тонкостенных деталях малой жёсткости и размеров из коррозионностойкой стали, применяемых в медицинской технике. В статье представлены результаты исследований влияния напряжения, концентрации и расхода электролита в процессе электрохимической прошивки на ...