Tianck Medical Ureteral stentsayagobeka, amashubhu angenalutho afakwa ku-ureter ukuze alondoloze ukugeleza komchamo kusuka ezinso kuya kwesinye lapho ukuphuma okujwayelekile kuphazamiseka noma kuba sengozini. Ibizwa nangokuthi ama-double J stents noma ama-JJ stents ngenxa yokuma kwe-pigtail kuzo zombili iziphetho zomkhiqizo.