Variable length uretheral stent

Details Variable length uretheral stent Variable length uretheral stent

1995-03-31

1997-10-28

Weiss, John G.

Surgery

Devices transferring fluids from within one area of body to...

604264, 604280, 604281, A61M 3700

Patent

active

056812744

ABSTRACT:
A variable length ureteral stent assembly. A central catheter tube forms a ureter stent with a retention structure for anchoring the stent in the ureter particularly within the bladder and kidney. The catheter tube is formed of a shape memory material and at least one of the retention structures includes a end portion of the catheter wrapped spirally into a multiple-turn planar coil having an axis that is transverse to the plane of the structure. The retention structure can then be partially unwound while still providing an anchoring function. Partially unwinding increases the length of an intermediate section of the ureteral stent.

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