Nga Taonga ERCP Toru Lumen Kotahi Whakamahi Sphincterotome mo te Whakamahi Endoscopic

1. Diamita
Ko te diameter o te sphincterotome te tikanga 6Fr, a ka heke haere te wahanga tihi ki te 4-4.5Fr. Ko te diameter o te sphincterotome e kore e hiahiatia kia nui te aro, engari ka taea te mohio ma te whakakotahi i te diameter o te sphincterotome me nga kaha mahi o te endoscope. Ka taea te tukuna tetahi atu waea kaiarahi i te wa e tuu ana te sphincterotome.
2. Te roa o te mata
Me aro ki te roa o te mata, te tikanga 20-30 mm. Ko te roa o te waea kaiarahi e whakatau ana i te koki arc o te maripi arc me te roa o te kaha i te wa e werohia ana. No reira, ka roa ake te waea maripi, ka tata atu te "koki" o te pewa ki te ahunga tinana o te ngongo ngongo pancreaticobiliary, he maamaa ake te whakauru pai. I te wa ano, ko nga waea maripi roa rawa pea ka hee te tapahi o te sphincter me nga hanganga a tawhio noa, ka puta he raruraru nui penei i te pakaru, na reira he "maripi atamai" e tutuki ana i nga hiahia o te haumaru i te wa e tutuki ana te roa.
3. Te tautuhi sphincterotome
Ko te tautuhi o te sphincterotome he waahanga tino nui, ko te nuinga ki te whakahaere i te kaiwhakahaere ki te mohio ngawari me te tautuhi i te waahi o te sphincterotome i te wa o te mahi whakahirahira me te whakahirahira, me te tohu i te waahi noa me te waahi haumaru. Ko te tikanga, he maha nga tuunga penei i te "tīmatanga", "tīmatanga", "waenganui" me te "1/4" o te sphincterotome ka tohua, ko te 1/4 tuatahi me te waenganui o te maripi atamai he waahi haumaru mo te tapahi , he nui ake te whakamahi. I tua atu, ko te tohu waenga o te sphincterotome he radiopaque. I raro i te tirotiro X-ray, ka taea te mohio ki te waahi o te waahi o te sphincterotome i roto i te sphincter. Ma tenei ara, ka honoa me te roa o te maripi e kitea ana i raro i te tirohanga matakite, ka taea te mohio mena ka taea e te maripi te mahi haumaru te tapahi sphincter. Heoi, he rereke nga tikanga mo ia kamupene mo te hanga tohu, me maarama.