ureteral stent raj (ob lub pigtail catheter, lossis DJ raj) yog siv dav hauv kev phais urological, haum rau kev phais mob sab sauv xws li lub raum pob zeb, ureteral pob zeb, hydronephrosis, hloov raum, qog nqaij hlav hauv lub raum thiab ureter, thiab lithotripsy hauv chav kawm. Kev kho mob xws li lithotripsy thiab dilation ntawm ureteral stenosis, nws tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev tso zis thiab tiv thaiv ureteral stenosis thiab adhesion blockage tom qab cog rau hauv lub ureter. Feem ntau ntawm D-J raj siv hauv kev kho mob daim ntawv thov yog ua los ntawm silicone roj hmab los yog polyurethane polymer cov ntaub ntawv. Txawm li cas los xij, vim tias cov ntaub ntawv no tsis tuaj yeem degraded thiab absorbed nyob rau hauv tib neeg lub cev, cov khoom uas twb muaj lawm D-J raj muaj ib co insurmountable tsis xws luag nyob rau hauv daim ntawv thov:
(1) Nws yuav tsum raug tshem tawm los ntawm kev ua haujlwm tawm tsam, uas yog, los ntawm cystoscope. Txawm hais tias hom kev ua haujlwm cystoscope no tsis yog kev ua haujlwm loj, tus neeg mob yuav mob heev. Dab tsi yog qhov hnyav dua yog tias extubation yuav ua rau ntau qib ntawm cov ntaub so ntswg urinary. kev puas tsuaj, ua rau muaj kab mob thiab edema, feem ntau xav tau kev kho mob xwm txheej ceev.
(2) Vim muaj ntau yam, ntau tus neeg mob yuav hnov qab extubate lossis ncua extubation. Unabsorbable stents tau tso rau hauv lub cev rau lub sijhawm ntev los tsim cov zis calculi. Thaum lawv tsis tuaj yeem raug tshem tawm los ntawm kab noj hniav, lawv yuav tsum tau muab tshem tawm los ntawm kev phais qhib. tus neeg mob raug kev txom nyem thiab lub nra nyiaj txiag.
(3) Non-absorbable ureteral stents often cause some complications. With the prolongation of stent indwelling time, these materials begin to affect the urothelium and urine components, resulting in the formation of coatings, bacterial biofilms and Caused by infection, the common complications are: waist and abdomen pain, frequent urination, urgency, dysuria, hematuria and infection. This is all because the non-absorbable catheter causes a foreign body reaction in the body for a long time.
