| 主权项 |
1. A device for simulating blood flow comprising:
an anatomical unit including a sealed housing designed to replicate anatomical conditions in a human body; and a waveform generator for generating waveforms, the waveform generator comprising:
a pump capable of pumping a fluid through at least one fluid line and thereby transmitting the waveform from the waveform generator through the fluid line,wherein the fluid line is disposed inside and outside the anatomical unit;a bifurcation point capable of splitting the fluid line into a plurality of fluid lines, wherein the plurality of fluid lines comprise a main line and a parallel line,wherein each fluid line is capable of transmitting the waveform;a plurality of valves capable of at least partially occluding fluid flow,wherein the plurality of valves include at least two pinch valves and at least one proportional valve,wherein the main line and parallel line each include one of the at least two pinch valves,wherein the main line includes the at least one proportional valves,wherein one of the at least two pinch valves is capable of dynamically modulating pressure drop at the proportional valve,wherein the at least one proportional valve is capable of modulating static resistance of the waveform through the at least one fluid line,a reservoir capable of housing the fluid, andan air pocket disposed in the fluid line upon exit from the anatomical unit, wherein the air pocket hides everything outside the anatomical unit from an ultrasound machine;wherein the waveforms enter and exit the anatomical unit and the waveform generator through the fluid lines simulating blood flow,wherein one of the at least two pinch valves develops pressure and resistance at the at least one proportional valve, and wherein the valves are capable of controllably producing a continuous range of flow from no flow up to the flow the pump is capable of pumping over an interval of time to produce a waveform. |
