US 11,986,602 B2
Catheter of a heart pump shaped for anatomic fit
Scott C. Corbett, Beverly, MA (US); and Margaret Tierney Bergson, Georgetown, MA (US)
Assigned to Abiomed, Inc., Danvers, MA (US)
Filed by Abiomed, Inc., Danvers, MA (US)
Filed on May 31, 2016, as Appl. No. 15/168,852.
Prior Publication US 2017/0340787 A1, Nov. 30, 2017
Int. Cl. A61M 25/00 (2006.01); A61M 60/13 (2021.01); A61M 60/216 (2021.01); A61M 60/857 (2021.01)
CPC A61M 25/002 (2013.01) [A61M 25/0009 (2013.01); A61M 25/0041 (2013.01); A61M 60/13 (2021.01); A61M 60/216 (2021.01); A61M 60/857 (2021.01); A61M 2209/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A catheter assembly of a heart pump comprising:
a catheter including a proximal catheter portion and a distal catheter portion; and
a cannula coupled to the distal catheter portion, the cannula having a proximal cannula portion and a distal cannula portion extending from a pre-formed bend between the proximal cannula portion and the distal cannula portion, the proximal cannula portion including a blood pump outlet and the distal cannula portion including a blood pump inlet;
wherein, the catheter assembly as formed has a predetermined shape when in a resting state,
wherein, the predetermined shape is configured such that, in the resting state:
the catheter has a pre-formed curve encompassing the distal catheter portion and at least a portion of the proximal catheter portion;
the proximal cannula portion and the pre-formed curve of the catheter define a first plane, and
the pre-formed curve of the catheter is configured such that the distal cannula portion extends out of the first plane at an angular offset relative to the first plane, wherein the angular offset is approximately equal to an angle between:
(a) a second plane representative of a plane of an aortic arch defined by an ascending portion of an aorta and a descending portion of the aorta, and
(b) a third plane representative of a plane of the ascending portion of the aorta and an apex of a left ventricle of a patient's heart.