samfur

Don yin allura mafi kyau, sannan kuma mafi kyawun gogewa yayin da likitocin tiyata ke amfani da sutures a cikin tiyata. Injiniyoyin masana'antar na'urorin likitanci sun yi ƙoƙari su sa allurar ta fi ƙarfi, ƙarfi da aminci a cikin shekarun da suka gabata. Manufar ita ce haɓaka alluran sutures tare da mafi ƙarfin aiki, mafi kaifi komai yawan shigar da za a yi, mafi aminci wanda bai taɓa karya tip da jiki ba yayin wucewa ta kyallen takarda. Kusan kowane babban maki na gami an gwada aikace-aikacen akan allurar suture don yin sama ya faru. Wasu alamomin mult na musamman suna amfani da ƙarin aji na musamman na Alloy ya ƙunshi kayan haɗin ƙarfe masu ƙarfi don adana wannan burin.

Tattalin arziki da araha ko da yaushe zabi na kasuwa. Gilashin tsafi don sutures ba shi da sauƙi don sarrafawa da masana'antu wanda ke kawo farashi mafi girma. A wani hannun kuma, ba duk tiyatar ke da buƙatu akan aikin allurar da ke sama ba. Har ma wasu likitocin fiɗa suna son allura ɗan laushi. Don bayyana kaifin allura ta hanyar Gwajin Ƙarfin Kutse, don bayyana ƙarfin allurar ta hanyar gwajin lokacin Lankwasawa, don bayyana aminci ta hanyar gwajin Ductility. Don inganta aikin Ƙaddamarwa, an gabatar da daidaito da fasahar niƙa ga masana'antun da suka adana wannan burin. Kalubalen shine daidaita daidaito tsakanin Lankwasawa Lokacin da Ductility, tunda gami yana da rauni yayin da yake wahalar samun ƙarfi, kuma wannan yanke shawarar zaɓin gami.

Yawancin alluran sutures an yi su ne ta hanyar ANSI 302/304 gami a yanzu, kafin ANSI 302/304, an yi amfani da jerin alloy 400 don allurar Sutures tsawon shekaru da yawa, gami da 420J2, 455F da 470.

420J2 shine mafi kyawun kayan haɗin gwiwar tattalin arziki don allurar sutura. 420J2 karfe ne martensitic bakin karfe, amfani bayan quenching da tempering. Cold aiki yi da waldi yi ba shi da kyau, bayan waldi ya kamata a nan da nan zafi magani, don hana fatattaka. Yana da machinability mai kyau a ƙarƙashin yanayin annealing.

Alloy 455 wani tsufa ne na martensitic mai taurare bakin karfe, tare da in mun gwada da taushi, ana iya haifar da yanayin zafi, kawai maganin zafi mai sauƙi, zaku iya samun ƙarfi mai ƙarfi na musamman, ƙaƙƙarfan ƙarfi da taurin kai. Ana iya sarrafa al'ada 455 a cikin yanayin da aka rufe kuma ana iya yin waldawa azaman hazo mai taurin bakin karfe. Kamar yadda aikin hardening kudi ne karami, na iya zama iri-iri na sanyi kafa. Alloy 470 shima bakin karfe ne na musamman na martensitic, wanda ke samar da allura mai wahala.

Yin tiyatar zuciya da jijiyoyin jini yana buƙatar mafi kyawun aiki kamar na sama tare da suturen ido, wanda 302/304 alloy ya yi. Yawancin tiyata a cikin sashen gaggawa ba sa buƙatar irin wannan buƙatar mai girma wanda akasari 420J2 da allura 455 suka yi, ƙananan lambobi ne kawai aka yi ta 470 alloy.