Kidney stone disease One ureteroscopic technique involves the placement of a ureteral stent (a small tube extending from the bladder, up the ureter and into the kidney) to provide immediate relief of an obstructed kidney. Stent placement can be useful for saving a kidney at risk for postrenal acute renal failure due to the increased hydrostatic pressure, swelling and infection (pyelonephritis and pyonephrosis) caused by an obstructing stone. Ureteral stents vary in length from and most have a shape commonly referred to as a "double-J" or "double pigtail", because of the curl at both ends. They are designed to allow urine to flow
Urinary bladder (Chinese medicine) Urinary bladder (Chinese medicine) As distinct from the Western medical concept of Urinary bladder, this concept from Traditional Chinese Medicine is more a way of describing a set of interrelated functions than an anatomical organ. (See Zang Fu theory) The Bladder is a Yang (Fu) organ; its paired Yin (Zang) organ is the Kidney. Both are associated with the element of water and the emotion of fear. As opposed to western medicine, where the bladders function is the storage and excretion of urine, the bladder in Traditional Chinese Medicine has extended functions, including how fluids are transformed during urine production.