Patent ID: 8678830

Claim:
A circulatory heart model of similitude to a biological heart with respect to shape and function, said model comprising: a heart structure, said heart structure being made of a pliable material that is displaceable under moderate external pressure and including hollow portions configured in likeness to major vessels of said biological heart including a base portion having chambers including left and right ventricles, a left atrium portion, a right atrium portion, an aorta portion and a pulmonary trunk portion, said heart structure also including pulmonary flow openings through said left atrium portion and said pulmonary trunk portion for providing flow communication within said heart structure, said heart structure further including systemic flow openings through said aorta portion and said right atrium portion; pulmonary circulation means, said pulmonary circulation means including at least one enclosed conduit interconnected between said pulmonary flow openings for providing analogous pulmonary flow communication between said pulmonary trunk portions to said left atrium portion of said heart structure; systemic circulation means, said systemic circulation means including at least one enclosed conduit interconnected between said systemic flow openings for providing analogous systemic flow communication between said aorta portion and said right atrium portion of said heart structure; said pulmonary circulation means and said systemic circulation means each including a respective expandable reservoir portion adapted for holding increased volume fluid under increased pressure; and wherein said circulatory heart model once fluid filled is substantially leak tight and is characterized with a closed flow loop interconnecting said hollow portions of said heart structure thereby providing closed loop circulation of fluid through said heart structure via pliable compression of said expandable reservoir portions under moderate external pressure.