Patent ES-8604777-A1 (ES)
Title: Total heart prosthesis having two decoupled pumps forming a functionally undissociable unit, and electrocontrolled valves for such a prosthesis.
IPC: A61M60/892
Filed: 1984-11-16
Abstract: The cardiac prosthesis includes a pericardiac module (3) which is positioned in the natural heart cavity, and is enclosed in a sealed envelope with four orifices. These are connected to a right auricle, the pulmonary artery, the left auricle, and the aorta. The orifices for connection to the right auricle and the pulmonary artery are provided with valves to serve the input and output orifices of a first pump which fulfils the function of the right hand part of the natural heart. - An extrapericardiac module (4) situated in a neutral physiological space fulfils the function of the left part of the natural heart. This includes a second pump, and is linked to the first module by both blood and gas conduits. EPAB- EP-146445 B Total artificial heart comprising two pumps, respectively representative of the right heart and of the left heart, as well as a device for controlling said pumps, characterised in that, on the one hand, it comprises the indissociable functional unit constituted by a pericardial module (3) adaptedto be housed in the cavity (2) of the natural heart (1) to be replaced and enclosed in a tight envelope (8) comprising four orifices (25,26, 29 and 30) for connection adapted respectively to be connected to the right atrium OD, to the pulomonary artery AP, to the left atrium OG and to the aorta AO, said orifices (25) and (26) for connection to the right atrium OD and to the pulmonary artery AP being provided with valves in order to serve respectively as input orifice and as output orifice for a first pump (13,14) housed in said envelope (8) and adapted to perform the furction of the right heart of the natural heart to be replaced; an extra-pericardial module (4) adapted to be housed in a physiologically neutral space in the recipient patient and to perform the function of the left heart of the natural heart (1) to be replaced, this extra-perirardial module comprising a second pump (50,52) enclosed in a tight envelope (40) provided with an input orifice (53) and an output orifice (56), each provided with a valve; a functional link (5) between said modules comprising a first duct (33) passing through said envelope (8) of said pericardial module (3) and connecting the orifice (29) thereof corresponding to the left atrium OG and the input orifice (53) of said second pump (50,52) incorporated in said extra-pericardial module (4); a second duct (34) passing through said envelope (8) of said pericardial module (3) and connecting the orifice (30) thereof corresponding to the aorta AO and the output orifice (56) of the second pump (50,52) incorporated in said extra-pericardial module (4); a third duct (32) establishing a gaseous communication between the sides of said first and seco - EP-146445 B Total artificial heart comprising two pumps, respectively representative of the right heart and of the left heart, as well as a device for controlling said pumps, characterised in that, on the one hand, it comprises the indissociable functional unit constituted by a pericardial module (3) adaptedto be housed in the cavity (2) of the natural heart (1) to be replaced and enclosed in a tight envelope (8) comprising four orifices (25,26, 29 and 30) for connection adapted respectively to be connected to the right atrium OD, to the pulomonary artery AP, to the left atrium OG and to the aorta AO, said orifices (25) and (26) for connection to the right atrium OD and to the pulmonary artery AP being provided with valves in order to serve respectively as input orifice and as output orifice for a first pump (13,14) housed in said envelope (8) and adapted to perform the furction of the right heart of the natural heart to be replaced; an extra-pericardial module (4) adapted to be housed in a physiologically neutral space in the recipient patient and to perform the function of the left heart of the natural heart (1) to be replaced, this extra-perirardial module comprising a second pump (50,52) enclosed in a tight envelope (40) provided with an input orifice (53) and an output orifice (56), each provided with a valve; a functional link (5) between said modules comprising a first duct (33) passing through said envelope (8) of said pericardial module (3) and connecting the orifice (29) thereof corresponding to the left atrium OG and the input orifice (53) of said second pump (50,52) incorporated in said extra-pericardial module (4); a second duct (34) passing through said envelope (8) of said pericardial module (3) and connecting the orifice (30) thereof corresponding to the aorta AO and the output orifice (56) of the second pump (50,52) incorporated in said extra-pericardial module (4); a third duct (32) establishing a gaseous communication between the sides of said first and seco USAB- US4623350 A The prosthesis comprises two pumps, a control and a functional unit comprising a pericardial unit (3) destined to be housed in the cavity (2) of the natural heart to be replaced (1) and enclosed in a tight envelope (8) provided with four coupling orifices (25,26,29,30). The orifices are respectively adapted to be connected to the right auricle (RA), and pulmonary artery (PA) and left auricle (LA), aorta (AO). The orifices for coupling the right auricle to the plumonary artery being provided with valves used respectively as inlet orifice and outlet orifice of a pump (13,14) housed in the envelope and destined to assume the right heart function of the natural heart to be replaced. An extra-pericardial unit (4) destined to be housed in a physiologically neutral space of the receiving sick person and to assume the function of the left heart of the natural heart to be replaced comprises a second pump (50,52) enclosed in a tight envelope (40) provided with an inlet orifice (53) and an outlet orifice (56), each provided with a valve. - A functional connection line (5) between the units comprises a duct (33) passing through the envelope of the pericardial unit and connecting the orifice of the latter corresponding to the left auricle with the inlet orifice of the second pump incorporated into the extra-pericardial unit. A second duct passes through the envelope of the extra-pericardial unit and connects the orifice (30) corresponding to the aorta with the outlet orifice of the second pump incorporated into the extra-pericardial unit. A third duct (32) establishes communication for the gases between the sides of the two pumps opposite to the blood flow.  (19pp)a - US4623350 A The prosthesis comprises two pumps, a control and a functional unit comprising a pericardial unit (3) destined to be housed in the cavity (2) of the natural heart to be replaced (1) and enclosed in a tight envelope (8) provided with four coupling orifices (25,26,29,30). The orifices are respectively adapted to be connected to the right auricle (RA), and pulmonary artery (PA) and left auricle (LA), aorta (AO). The orifices for coupling the right auricle to the pulmonary artery being provided with valves used respectively as inlet orifice and outlet orifice of a pump (13,14) housed in the envelope and destined to assume the right heart function of the natural heart to be replaced. An extra-pericardial unit (4) destined to be housed in a physiologically neutral space of the receiving sick person and to assume the function of the left heart of the natural heart to be replaced comprises a second pump (50,52) enclosed in a tight envelope (40) provided with an inlet orifice (53) and an outlet orifice (56), each provided with a valve. - A functional connection line (5) between the units comprises a duct (33) passing through the envelope of the pericardial unit and connecting the orifice of the latter corresponding to the left auricle with the inlet orifice of the second pump incorporated into the extra-pericardial unit. A second duct passes through the envelope of the extra-pericardial unit and connects the orifice (30) corresponding to the aorta with the outlet orifice of the second pump incorporated into the extra-pericardial unit. A third duct (32) establishes communication for the gases between the sides of the two pumps opposite to the blood flow.