Patent ID: 6695810
Filing Date: 2004-02-24
Classification: A61B,A61M

Abstract:
An endolumenal aortic isolation system comprising:an elongate body with a proximal end portion, a distal end portion, a longitudinal axis, and a flow lumen which extends between a distal port located along the distal end portion of the elongate body and a proximal port located along the proximal end portion of the elongate body, wherein the flow lumen communicates externally of the elongate body through and intermediate port located between the distal and proximal ports; a cannula member, having a distal and proximal end and an axis of elongation, removeably and slidably carried relative to said elongate body so as to permit axial movement of said cannula member within said flow lumen, said cannula member comprising an adjustable valve member carried by said cannula adjacent said distal end where said adjustable valve member is selectively positionable in said flow lumen such that upon adjusting said adjustable valve member to a closed position after said adjustable valve member is positioned between said intermediate port and said proximate ports, said flow lumen is open between said distal and intermediate ports and closed between said intermediate and proximate ports, and when said adjustable valve member is adjusted to a closed position after positioning said adjustable valve member between said distal and intermediate ports said flow lumen is open between said proximate and intermediate ports and closed between said intermediate and distal ports; an aorta isolation assembly located along the distal end portion of the elongate body with a distal portion located proximally of the distal port, a proximal portion located proximally of the distal portion and distally of the intermediate port, and an intermediate region located between the distal and proximal portions, the distal and proximal portions being adjustable between first and second collapsed positions, respectively, and first and second extended positions, also respectively, which are each adapted to circumferentially engage an aortic wall of an aorta, wherein in the respective first and second extended positions, the distal and proximal portions have first and second outer diameters and the intermediate region has an intermediate outer diameter that is less than the first and second outer diameters and is insufficient to engage the aortic wall; and, wherein the aorta isolation assembly is adapted to isolate a proximal anastomosis site along the aortic wall from a volume of pressurized blood at a location in the aorta either distally from the distal portion or proximally from the proximal portion of the aorta isolation assembly with respect to the elongate body by positioning the intermediate region within the aorta along a proximal anastomosis site and adjusting the distal and proximal portions to the first and second extended position, respectively, to thereby engage the aortic wall on upstream and downstream sides of the proximal anastomosis site.