| CPC A61M 60/237 (2021.01) [A61M 60/178 (2021.01); A61M 60/183 (2021.01); A61M 60/174 (2021.01); A61M 2207/00 (2013.01)] | 12 Claims |
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1. A cardiac support system, comprising:
a pump unit; and
a feed line configured to conduct a fluid flow to the pump unit, wherein the feed line comprises:
a feed head portion comprising at least one introduction opening for receiving the fluid flow into the feed line; and
a contoured portion disposed adjacent to the feed head portion and comprising an inner surface contour, wherein the inner surface contour comprises a first inner diameter at a first position, a second inner diameter at a second position, and a third inner diameter at a third position, wherein the first inner diameter is greater than the second inner diameter, wherein the third inner diameter is greater than the second inner diameter, wherein the first inner diameter comprises a maximum inner diameter of the contoured portion and the second inner diameter comprises a minimum inner diameter of the contoured portion, wherein the inner surface contour comprises a rounded portion at the second position, wherein the contoured portion comprises a first inner radius at the first position and a second inner radius at the second position, wherein the second inner radius is at most one fifth smaller than the first inner radius, and wherein the second position is located between the third position and the first position;
wherein:
the inner surface contour comprises an insertion element insertable within the feed line; and
a length of the insertion element is greater than a radius of the feed line up to twice an inner diameter of the contoured portion.
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