Abstract: A tubular flexible stent, a combination of stent-catheter, and method thereof, comprises a flexible tubular drain passage segment and a flexible tubular ureteral catheter receiving segment which is collinearly integral with the passage segment. The stent is formed with a curl at each end of the drain passage segment and the catheter receiving segment. The outer width of the catheter receiving segment is same or slightly larger than that of the drain passage segment. The inner width of the catheter receiving segment is larger than that of the drain passage segment. The length of the drain passage segment is substantially longer than that of the catheter receiving segment. A rigid ureteral catheter is inserted into the receiving segment to straighten the preformed curl formed therein and a stiffening wire is passed through the catheter and the stent to straighten the curl formed in the drain passage segment.

Abstract: A tubular flexible stent, a combination of stent-catheter, and method thereof, comprises a flexible tubular drain passage segment and a flexible tubular ureteral catheter receiving segment which is collinearly integral with the passage segment. The stent is formed with a curl at each end of the drain passage segment and the catheter receiving segment. The outer diameter of the catheter receiving segment is larger than that of the drain passage segment, wherein the junction therebetween is gradually tapered to form a continuous, non-abrupt outer surface. The length of the drain passage segment is substantially longer than that of the catheter receiving segment. A rigid ureteral catheter is inserted into the receiving segment to straighten the preformed curl formed therein and a stiffening wire is passed through the catheter and the stent to straighten the curl formed in the drain passage segment.

Abstract: A combination ureteral stent-ureteral catheter comprising an elongated flexible tubular member which has proximal and distal ends in the form of curls when present in its internalized stent form and which further comprises an elongated tubular rigid extension attached to the distal end of the stent which allows the combination to function as an externalized ureteral catheter. On extracting the rigid extension from the stent while the device is in place, the distal end of the stent reforms itself into a preformed curl and thereafter functions as a Double J internalized catheter or stent.

Abstract: A combination ureteral stent-ureteral catheter comprising an elongated flexible tubular member which has proximal and distal ends in the form of curls when present in its internalized stent form and which further comprises an elongated tubular rigid extension attached to the distal end of the stent which allows the combination to function as an externalized ureteral catheter. On extracting the rigid extension from the stent while the device is in place, the distal end of the stent reforms itself into a preformed curl and thereafter functions as a Double J internalized catheter or stent.

Abstract: A combination ureteral stent-ureteral catheter comprising an elongated flexible tubular member which has proximal and distal ends in the form of curls when present in its internalized stent form and which further comprises an elongated tubular rigid extension attached to the distal end of the stent which allows the combination to function as an externalized ureteral catheter. On extracting the rigid extension from the stent while the device is in place, the distal end of the stent reforms itself into a preformed curl and thereafter functions as a Double J internalized catheter or stent.