Artificial heart consisting of a biventricular pump with control mechanisms for total replacement of human heart

Claim 1

A pneumatically controlled biventricular artificial heart for orthotopic implantation comprising: a left ventricular pump unit and a separate right ventricular pump unit, each said unit being adapted for attachment to the interatrial septum and, respectively, the left and right residual atrial walls of the heart, and for subsequent attachment together; each said pump unit comprising a ventricle chamber having a connection to an external source of fluid pressure, a movable diaphragm molded in the systolic position extending across said ventricle chamber and thereby defining said ventricle chamber into a variable size blood chamber and a variable size fluid pressure chamber, a blood inlet into each said blood chamber and inflow blood pressure monitor at each said inlet, and a blood outlet from each said blood chamber and an outflow blood valve at each said blood outlet; control means to operate said left ventricular pump at about 150 - 160 mm. Hg systolic pressure, and separate control means to operate said right ventricular pump at about 50 mm. Hg. systolic pressure and -2 to 4 mm. Hg. diastolic pressure, to pulse said diaphragms from said external power source; and wherein said blood chambers are lined with a Dacron reticular fabric embedded in silicone rubber to provide a nonporous, impervious layer.