STAND FOR RESEARCH prosthetic heart valves

摘要

The utility model relates to medicine, namely to cardiac surgery, and may be used for medical and biological evaluation of materials and the interaction of the influence of components of the heart valves to their final characteristics.; Technical result of utility model is to improve the effectiveness of the degassing hydraulic fluids and the ability to use a variety of solutions, including poisonous, due to tightness of hydraulic damper degassing.; Propose a stand for studying heart valve prostheses, comprising a circulation system comprising the aortic and atrial 1 2 test chambers with the test sites for installing the valves, solenoid pneumatic valve 9 connected to pnevmomagistralyami pnevmogidroprivodom 3 and the compressor 11 and vacuum pump 12. The solenoid air valve 14 connects the damping unit and adjusting a residual pressure of 16 4 with a compressor and a vacuum pump 17. The hydraulic damper, degasser included in the circulation system, configured germeti chnym and comprises a perforated pipe for supplying a working fluid, a layer of spherical bodies of inert material, collection of the working fluid and an elastic air reservoir is connected via valve to the upper part of the hydraulic damper, degasser. Stand operation is controlled by pressure sensors, flow sensors, and digital video cameras.; Control of the operating parameters of the stand and management performed by the computer 22 with incoming information processing unit 21 and outputting control signals 23. z.p.f. 1, 2 Fig.