Dynamic action valveless artificial heart utilizing dual fluid oscillator

Claim 1

An artificial heart to act as a circulatory aid for the natural heart either internally or externally of the body comprising a. first and second pulsing means for producing first and second pulsed flows of blood, respectively, each of said pulsing means comprising 1. an input conduit for receiving a mainstream of blood, 2. a capacitance chamber to store said mainstream of blood until a certain volume is attained, 3. a control conduit for transmitting the blood from said capacitance chamber to deflect said mainstream of blood upon the application of forcing means, said forcing means comprising a flexible diaphragm located between and physically separating said capacitance chambers whereby blood is ejected from one of said capacitance chambers by a force on the diaphragm applied by the blood that is filling the other of the said capacitance chambers, said filling and ejecting being a continuous alternating action whose repetition frequency is dependent upon the rate of flow of blood through the system, and 4. an output conduit for receiving said mainstream of blood after its deflection by the blood issuing from said control conduit; b. first and second pumping means for receiving and pumping said first and second pulsed flows of blood to the remainder of the circulatory system, the output volume flow of said first and second pumping means being directly proportional to the input pressure of the said first and second pulsed flows of blood and inversely proportional to the pressure against which they are pumping; and c. power means to drive said first and second pumping means at a continuous and nonvarying speed.