A flexible surgical T tube for use as a post hysterectomy fluid drainage tube having a plurality of drain ports extending across the top of the cross tube having open ends thereof and the ports extending around the periphery of the tube and with a top central port designed for tube removal after implantation thereof by simple non-surgical withdrawal.

A cannula is described for insertion within the nose of a patient to provide drainage or to allow for postoperative suction of the sinus after surgery. The cannula is formed as an elongated tubular section with an anchoring end for insertion into the sinus. At the anchoring end of the cannula reinforced leaflets are provided as drainage channels and to serve as the anchoring aspect of the cannula.

This invention provides a novel tubular member that can be surgically inserted into the common bile duct of a patient to perform the plural functions of, initially, providing, through its interior, a conduit for drainage of bile from inside that duct to a location outside of the body wall of the patient and, subsequently, with its exterior, promoting the growth of a fistulous tract between the outside of the body wall of the patient and the inside of the duct through which an instrument, such as a steerable basket catheter and the like, that has been non-surgically inserted into the duct via the interior of the tubular member for removal of an object, such as a retained stone and the like, contained therein, can be non-surgically withdrawn together with the object and the tubular member itself to a location outside of the body wall of the patient. Basically, the novel device that is provided by the invention comprises a hollow tubular member having the shape of a "T", with the "T" including a crossbar that can be flexed and inserted into the common bile duct through an opening that has been surgically made through the duct wall and a stem which has its junction with the crossbar constructed such that the distal end of the stem which then extends through the duct opening can be extended outwardly through an incision that has been surgically made through the body wall of the patient. The crossbar and stem each have only a single lumen through its interior, with the single lumen of the stem being fluid-connected to the single lumen of the crossbar at the junction of the stem and the crossbar. And, the stem has, along its entirety, both inside and outside diametric dimensions that are, respectively, greater than the inside and outside diametric dimensions of the crossbar.

A catheter assembly insertable into a blood vessel for directing medicinal fluids intravenously into the vessel while providing for substantially uninterrupted flow of blood through the vessel; and, an anchoring flap mountable onto the catheter assembly or any other catheter for anchoring such catheters in a variety of positions.

A bifurcated venous return cannula assembly is described for insertion into the vena cavae through a single incision in the right atrium. The cannula includes a single outward tube that is bifurcated at an inward end, forming two normally diverging flexible branches. The tube branches diverge naturally from the central axis of the single tube. An obturator slidably engages the bifurcated end of the tube to hold the branches together along the tube axis during initial insertion and to draw the branches back together within the atrium upon withdrawal. The obturator also enables the branch ends to separate within the atrium following initial insertion. The separating tube ends seek out and ascend the superior vena cava, and descend the inferior vena cava due to the natural resiliency of the branches and their tendency to seek their normal diverging positions.