Drainage catheter

Abstract

A catheter includes a tubular body, a ring member, and at least one elongate member. The tubular body has a distal region. The ring member encircles at least a portion of the circumference of the tubular member. The one elongate member has a proximal end and a distal end, the distal end of the elongate member being coupled to the distal region of the tubular body and the proximal end being attached to the ring member. Forming a loop in a distal end of a catheter includes pulling a ring that encircles at least a portion of the circumference of the catheter. The ring is attached to a proximal end of an elongate member, a distal end of the elongate member is attached to a distal end of the catheter, and the elongate member is positioned along the outside surface of the catheter.

1 . A method of securing a catheter in a body cavity, the method comprising: inserting an introducer into a body cavity, the introducer comprising a hub and a sheath having a longitudinal channel passing between a proximal end and a distal end, the hub having a longitudinal channel and being joined to the proximal end of the sheath; and 
 inserting a catheter into the introducer, the catheter comprising a hub, a tubular body, at least one elongate member and a ring member, the tubular body having a distal region and a proximal region, the hub being attached to the proximal region of the tubular body, the elongate member having a proximal end and a distal end, the distal end of the elongate member being mounted to the tubular body in the distal region, the proximal end of the elongate member being attached to the ring member, and the elongate member at least partially passing along the outside surface of the catheter between the ring member and the distal region of the tubular body;    advancing the catheter into the introducer until the catheter hub is adjacent to the introducer hub; and    attaching the catheter hub to the introducer hub,    wherein advancing the catheter into the introducer causes the ring member to contact the introducer hub and form a loop in the distal region of the tubular body.