Kev tsim cov khoom tsim nyog ureteral stents ntsib ntau yam khoom siv- cuam tshuam txog kev tiv thaiv, los ntawm kev ruaj khov ntawm lub raj txuas mus rau kev tiv thaiv- kev ua tau zoo tom qab cog. Peb sib txuas lus txhua hnub nrog cov chaw tsim khoom kho mob, thiab sau cov ntsiab lus ntawm cov neeg mob feem ntau ntsib, nrog rau peb cov kev cai kho mob li cas - qib TPU daws cov teeb meem no.
Thawj qhov teeb meem yog tsis ruaj khov extrusion kev ua tau zoo. Ntau yam kev kho mob polymers feem ntau ua rau lub raj phab ntsa thickness sib txawv, deg tsis xws luag los yog tuag buildup thaum lub sij hawm siab - ceev nruam ntau lawm. Cov teeb meem no ua rau muaj kev tsis lees paub ntau. Peb cov qauv TPU rau ureteral stPU raug tswj nruj nruj. Nws muab cov dej ntws zoo ib yam, txhawb nqa nyias nyias - phab ntsa tubing extrusion rau cov lus qhia tshwj xeeb xws li 4Fr txog 8Fr. Clean manufacturing qib raw pellets txo impurities uas ua rau nto blemishes ntawm tiav catheters.
Encrustation tseem yog ib qho kev tsis txaus siab loj tshaj plaws rau kev kho mob ureteral stents. Mineral deposits thiab kab mob biofilm tsim nyob rau ntawm qhov chaw stent, thaiv cov kua dej thiab ua rau muaj kab mob. Txawm hais tias cov khoom siv raw tsis tuaj yeem tshem tawm tag nrho cov encrustation, hwm TPU tsim ib lub hauv paus smoother. Nws ua haujlwm zoo kawg nkaus nrog cov txheej txheem hydrophilic txheej tau txais los ntawm cov neeg tsim khoom stent feem ntau. Cov khoom siv sib xws ua kom cov coatings txuas ruaj khov yam tsis muaj tev tawm thaum lub sij hawm ntev - implantation. Cov khoom siv tsis zoo feem ntau ua rau ib nrab txheej poob tom qab lub sijhawm luv luv.
Ntau tus neeg muab khoom siv tsis pom zoo rau kev ua kom tsis muaj menyuam. Qee TPUs raug kev txom nyem loj heev tom qab gamma tawg, ua tiav stents nkig. Peb lub ureteral stent TPU yog ua ntej - kuaj raws li cov qauv kev kho mob irradiation ntau npaum. Kev tuav pov hwm cov cuab yeej cuab tam ua tau raws li qhov kev cia siab ntawm cov kws tswj xyuas kev kho mob thoob ntiaj teb. Cov neeg tsim khoom tsis tas yuav kho cov kev ua haujlwm tsis zoo rau kev tshaj tawm -kev ua kom tsis muaj menyuam.
Kev tswj hwm kev ua raws cai tsim lwm qhov kev sib tw rau kev xa tawm - cov chaw tsim khoom lag luam. Tag nrho peb cov kev kho mob TPU tuaj nrog ua tiav batch xeem cov ntaub ntawv, txhawb cov neeg siv los sau cov ntaub ntawv technical rau CE, FDA thiab cov cuab yeej kho mob hauv zos. Peb tsis txhob hnov qab txog kev sib xyaw ua ke; Txhua yam khoom siv hauv cov khoom siv polymer yog traceable thiab ua tau raws li kev xav tau kev kho mob.
Peb muab cov qauv kuaj kev pabcuam rau kev tsim khoom tshiab. Cov neeg tsim khoom lag luam tuaj yeem khiav kev sim extrusion, simulate hauv -vivo hydrolysis tests thiab sterilization validation ua ntej txiav txim ntau. Los ntawm me me -batch prototype txoj kev loj hlob mus rau tag nrho- nplai ntau lawm, peb pab neeg muaj kev txhawb nqa cov khoom txuas ntxiv. Yog tias koj tam sim no tab tom nrhiav cov khoom siv txhim khu kev qha los txhim kho koj cov khoom lag luam ureteral stent, peb cov kev kho mob TPU series tau npaj txhij rau koj qhov kev ntsuam xyuas. (Cov lus suav: 592)