Cannula lined with tissue in-growth material and method of using the same

摘要

A cannula for moving fluids between a pump and the circulatory system of a patient. The cannula includes a liner having an intermediate portion between a proximal portion and a distal portion, and a lumen extending between the proximal and distal portions. At least the intermediate portion of the liner is constructed from a tissue in-growth material for supporting the growth of endothelial cells. A jacket surrounds at least part of the liner.

主权项

1. A cannula for moving blood between a pump and the circulatory system of a patient, the cannula comprising:
a liner having a length and comprising an intermediate portion that extends for a majority of the length between a proximal portion and a distal portion, and a lumen extending between the proximal and distal portions, wherein at least the intermediate portion is constructed from a porous in-growth material that permits embedment therein of endothelial cells of blood flowing through the lumen to thereby reduce thrombus formations along an inner blood contacting surface of the cannula, the proximal portion is configured for connecting to the pump and the distal portion is configured for connecting to the circulatory system; a jacket fully encapsulating the liner; and a continuous outer layer bonded to and surrounding the jacket and extending along a full length of the intermediate and distal portions of the liner, the outer layer constructed from a porous in-growth material that permits embedment therein of endothelial cells of blood flowing along an outer blood contacting surface of the cannula to thereby reduce thrombus formations along the outer blood contacting surface.