Catheter delivery system

Abstract

A method and apparatus for delivering a small elongated flexible member into a body cavity. The apparatus includes a storage chamber opened at both ends for containing substantially the entire length of the member to be delivered with one end extending through the opening at the forward end of the chamber and the other end extending through the opening at the rear end of the chamber. A first valve is attached to the rear end of the chamber and has a passageway therethrough in communication with the interior of the chamber so that extension of the other end of the member through the valve and closing of the valve will retain the other end of the member in fixed position. A fluid port is positioned between this valve and the chamber and has a passageway in communication with the interior of the chamber. A second fluid port is attached to the forward end of the chamber in position on a nozzle and has a passageway therethrough in communication with the interior of the chamber. A second valve is on the nozzle in position between the fluid port and the chamber to fix the one end of the member in position when extended through the nozzle from the chamber. The chamber and nozzle are fluid-filled. Fluid pressure from a liquid pressure source directs fluid through the fluid port and nozzle so that when the second valve means is opened the one end of the member and a portion in the chamber will be delivered through the forward end of the nozzle and from the apparatus.