Dab tsi yog oxidized regenerated cellulose?

Oxidized regenerated cellulose (ORC), raws li ib tug cellulose derivative, muaj biocompatibility zoo, biodegradability thiab non-toxicity. Oxidized regenerated cellulose yog cellulose uas tau oxidized los ua cellulose acid gauze los yog paj rwb ntaub zoo li absorbable hemostatic khoom. Nws muaj cov tsos thiab kev ntxhib los mos ntawm paj rwb gauze, yog mos thiab nyias, thiab yooj yim los qhwv, khoom, thiab lwm yam. Nws cov txheej txheem hemostatic yog sib sau cov platelets hauv cov ntshav ntawm lub qhov txhab ntawm lub qhov txhab mesh, sai sai tsim cov gel- zoo li cov tshuaj dub kom coagulate ntshav txhaws, yog li ua tiav lub hom phiaj ntawm hemostasis. Nws tsis tso siab rau cov txheej txheem coagulation ib txwm nyob hauv tib neeg lub cev, tab sis sai sai txhawb cov ntshav coagulation los ntawm lub cev ua haujlwm, tswj cov hlab ntsha me me los ntshav. Cov khoom muag tshwj xeeb thiab kev ntxhib los mos tso cai rau nws muab txiav rau hauv txhua yam uas haum rau qhov chaw los ntshav, ua kom yooj yim rau kev sib cuag ntawm qhov chaw los ntshav, txhim kho cov nyhuv hemostatic thiab pab tsim cov thrombus kom ua tiav cov nyhuv hemostatic sai. Nws cov yam ntxwv ua haujlwm yog: (1) Rapid hemostasis. Lub gauze ceev yuav siv tau raws li ib tug hemostatic matrix los txhawb cov ntshav txhaws coagulation thiab ua kom tag nrho cov txheej txheem hemostasis. Seb Suji gauze ua haujlwm tsis yog nyob ntawm seb lub coagulation mechanism hauv lub cev yog qhov qub. Nws muaj qhov cuam tshuam loj rau inhibiting los ntshav hauv cov hlab ntsha me. Cov nyhuv hemostasis tuaj yeem ua tiav hauv 10 feeb los ntawm cov txheej txheem endogenous. (2) Kev nqus kom tiav: Suji gauze yog qhov pib nqus tag nrho tom qab 7 hnub hauv lub cev, thiab yuav luag tsis muaj cov tshuaj tiv thaiv tshwj xeeb rau cov ntaub so ntswg. Raws li tus kws sau ntawv txoj haujlwm kho mob, tsis muaj tshuaj lom, tsis haum lossis tsis kam lees tshwm sim thaum lub sijhawm kho. (3) Yooj yim siv: Suji gauze zoo li cov ntaub thiab yooj yim heev rau kev ua raws li qhov chaw los ntshav. Nws tsis ua raws li cov khoom siv kho mob xws li cov cuab yeej thiab cov hnab looj tes. Nws tuaj yeem siv los ntawm kev xaws, qhwv, sau thiab thov. Nws tuaj yeem siv dav hauv yuav luag txhua txoj kev phais. Yog li ntawd, yog tias ligation thiab lwm txoj kev hemostasis tsis muaj txiaj ntsig thaum phais, Suji gauze tuaj yeem siv los txwv tsis pub los ntshav hauv cov hlab ntsha me, capillaries thiab cov leeg.