Stent yeSilicone urethral inogara kwenguva refu mudziyo wekurapa wakagadzirirwa kuiswa kwenguva refu muurethra kana ureter. Chinangwa chawo chikuru ndechekutsigira nzira dzeweti dzakatetepa kana dzakakuvara uye kubvisa weti. Wakakodzera varwere vanoda nguva refu (kubva pamwedzi yakati wandei kusvika pagore) yekutsigira weti kana nzira dzeweti. Wakagadzirwa nesilicone yemhando yepamusoro, mudziyo uyu unoratidza kugona kwakanakisa kwehupenyu uye kudzivirira kuvharika kwemasero, zvichiita kuti uve sarudzo yakanaka yenzvimbo dzeweti kwenguva refu.

Mastenti eTianck Medical Ureteral machubhu anochinjika, asina chinhu akaiswa muureter kuti achengetedze kuyerera kweweti kubva kuitsvo kuenda kudundira kana mvura yakajairika yavharika kana kuti yakanganiswa. Anonziwo double J stents kana kuti JJ stents nekuda kwechimiro chemuswe wenguruve kumativi ese echigadzirwa.