Chiyambi cha Intestinal Stents

Intestinal stent ndi chipangizo chachipatala, chomwe nthawi zambiri chimakhala chopangidwa ndi chitsulo kapena pulasitiki, chomwe chimagwiritsidwa ntchito kuthetsa vuto la m'mimba chifukwa cha matumbo stenosis kapena occlusion. Mitsempha ya m'mimba imatha kuyikidwa pansi pa endoscopic kapena kudzera m'mabowo ang'onoang'ono pakhungu, ndipo kuyika kwa ma stents kumatha kukulitsa chigawo chocheperako cha matumbo kuti abwezeretse matumbo ndikugwira ntchito. The implantation of intestinal stent angagwiritsidwe ntchito pochiza matenda ambiri m'mimba, monga chotupa m'mimba, kutupa matumbo, khansa ya m'mimba, etc. Njira yochizira iyi ili ndi ubwino wosasokoneza, mofulumira, komanso wogwira mtima, womwe ukhoza kupititsa patsogolo khalidwe la moyo wa odwala ndi kuchepetsa ululu wawo ndi zizindikiro zosasangalatsa.

Intestinal stent ndi mtundu watsopano wa chipangizo chachipatala, ndipo kakulidwe kake kakhoza kuyambika kumapeto kwa zaka za m'ma 1970 ndi kumayambiriro kwa zaka za m'ma 1980. M'matumbo oyambilira anali opangidwa ndi pulasitiki ndipo makamaka amagwiritsidwa ntchito pochiza kutsekeka kwa m'mimba komwe kumachitika chifukwa cha zotupa zowopsa monga khansa yakum'mero ​​ndi khansa ya m'mapapo. Ndi chitukuko cha sayansi ya zamankhwala, zitsulo zazitsulo zakhala zikugwiritsidwa ntchito kwambiri pochiza matenda a m'mimba.

Mu 1991, bungwe la Food and Drug Administration (FDA) la ku United States linavomereza stent yoyamba yachitsulo yochizira matenda a biliary ndi occlusion. Kuyambira pamenepo, ntchito stents zitsulo pang'onopang'ono kukodzedwa kuchitira zilonda zosiyanasiyana m'mimba ndi occlusion, monga khansa kum'mero, khansa ya m'mimba, duodenum, khansa ya m'matumbo, khansa ya m'matumbo, khansa ya m'mimba ndi khansa ya m'mimba.

M'zaka zaposachedwa, ndi kupita patsogolo kopitilira muyeso kwaukadaulo wazachipatala, mapangidwe ndi zida zamatumbo am'mimba zakonzedwanso. Mapangidwe amakono a matumbo a m'mimba amagwirizana kwambiri ndi mfundo za biomechanical, zomwe zingathe kusintha bwino maonekedwe a matumbo a m'mimba ndikuthetsa zovuta zowonongeka. Nthawi yomweyo, kusankha kwa zida kumakhalanso kosiyanasiyana, kuphatikiza chitsulo chosapanga dzimbiri, aloyi ya cobalt chromium, titaniyamu yoyera, ndi aloyi ya nickel titaniyamu. Zida zatsopanozi sizimangokhala ndi makina abwinoko, komanso zimakhala zolimbana ndi dzimbiri komanso zimayenderana ndi biocompatible, zomwe zimatha kuchepetsa kuyambika kwa zovuta komanso zovuta pambuyo pa kuyika kwa stent.

Monga njira yochiritsira yofulumira komanso yothandiza, stent yakhala ikugwiritsidwa ntchito kwambiri ndipo imagwira ntchito yofunika kwambiri pochiza matumbo a stenosis ndi kutsekeka. Ndi chitukuko chosalekeza komanso kuwongolera kwaukadaulo, akukhulupirira kuti ma stents amatumbo adzakhala ndi chiyembekezo chogwiritsa ntchito mtsogolo.