Cannula CONNECTIONS PUMP circulatory support Since the cardiovascular system

摘要

The utility model relates to medicine and can be used in the field of organ transplantation to provide blood flow for connection to various mechatronic devices (e.g., a pump of an artificial heart ventricle (SGF) and serves to provide a uniform flow of the patient's heart to the pump for the subsequent pumping it to ascending aorta. The technical result is the elimination of dead space to prevent the formation of thrombi with blood flow, ensuring compactness and manufacturability manufacturing apparatus. For this proposed cannula for connecting the pump circulatory support with the cardiovascular system, designed as a curved tube with a straight inlet and outlet portions and mounted therein a means to eliminate stagnant zones in the flow circulation, with means to eliminate stagnant zones is in the form divider streamlined hydrodynamic flow profile, installed in a bent tube portion and dividing it into two parts noncommunicating. The splitter has a smoothly diminishing in the flow direction of thickness h (z), and the thickness of the flow deflector h depending on the radial coordinate rh (r) may be constant or variable, the angle between the rectilinear portions of the cannula is selected in the range of 70-75 °. N.p.f. 1, 3 z.p.f. 4 yl.