Importance

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Abstract

An improved catheter for delivering fluid to a body cavity or aspirating the cavity. The catheter includes a cylindrical tube having a proximal end for joining the tube to a source of fluid or suction and a distal end connected to a bolus. The bolus includes a tubular shaped body formed of semi-rigid plastic. The body includes a tube connector section at one end, a tip section at the other end and a passage section between the connector section and the tip section. The passage section also contains a radial passage portion adjacent the tip section that forms a port through the side of the body. The passage section further includes a bolus body segment opposite the port. The body segment connects the tip section with the tube connector section. A side wall is formed in each side of the body segment. Each side wall has a height which is less than 50 percent of the outside radius of the body such that the port extends around more than 180 degrees of the circumference of the body. The side walls have a top surface with a continuously varying slope. The body segment also includes a structural component protruding radially outwardly therefrom, and effective to prevent the body segment from bending and restricting the port.

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First Claim