Patent ID: 7628808

Claim:
A system comprising: a multi-part adapter ( 30 ); and a cardiac biventricular assist device, wherein the multi-part adapter ( 30 ) is adapted to be implanted in a first opening ( 4 a ) in an apical region of a septum ( 4 ) and a second opening ( 2 a ) in the apex of a left ventricle ( 2 ) of a heart of a patient and is connected to the cardiac biventricular assist device of a patient when implanted, the cardiac biventricular assist device having a two-chamber pumping device, the two chambers ( 12 ; 15 ) of which each comprise an inlet ( 12 a ; 15 a ) and an outlet ( 12 b ; 15 b ) including cardiac valve prosthetics ( 17 ) provided therein, and an electrically powered compressor means provided between the two chambers ( 12 , 15 ), the multi-part adapter ( 30 ) comprises: a flexible insertion part ( 31 ) formed as a unit having a first end and a second end with a passageway therebetween; wherein a funnel-shaped portion is formed on the first end and the second end is adapted to extend through the first opening ( 4 a ); a receiving portion ( 32 ) formed as a unit having a first separate through passageway ( 34 ) having an opening at a first end and a second end engaged to the inlet ( 12 a , 15 a ) of one of the two chambers ( 11 , 15 ) of the pumping device and a second separate through passageway ( 35 ) which is shorter than the first through passageway having an open first end adapted to terminate in the left ventricle and a second end engaged to the inlet ( 12 a , 15 a ) of the other of the two chambers ( 12 , 15 ) of the pumping device; wherein a portion of a length of a wall of the second separate through passageway is abuttingly fixed to a wall of the first separate through passageway up to the first end of the second through passageway; wherein the fixed first and second separate through passageways is adapted to extend through and abut against the second opening ( 2 a ); a circumferential collar ( 33 ) formed as a unit with and at the first end of the first separate through passageway ( 34 ) which has two sides that project out from the circumference of the first separate through passageway, and wherein the opening of the first end of the first separate through passageway is fixed to and over the second end of the insertion part extending through the first opening ( 4 a ) so that the circumferential collar is adapted to abut the septum ( 4 ), and fix the end of the first separate through passageway and the funnel shaped portion of the insertion part to the septum and engage the passageway of the insertion part to the first separate through passageway.