Lub microcatheter yog ib lub raj nyias nyias, siv tau los xa cov tshuaj lossis lwm yam khoom rau cov hlab ntsha me me lossis cov kabmob. Nws yog feem ntau siv nyob rau hauv interventional radiology thiab cov txheej txheem neurology. Muaj ntau hom microcatheters muaj uas tsim los rau cov hom phiaj tshwj xeeb. Kab lus no yuav tham txog hom microcatheter thiab lawv cov nta.
1. Cov duab zoo
Microcatheters tuaj nrog cov duab sib txawv, txhua tus tsim los rau cov txheej txheem tshwj xeeb. Cov duab zoo tshaj plaws yog tapered, ncaj, thiab angled. Tapered cov lus qhia yog tsim los rau kev nkag mus rau cov hlab ntsha me me thiab nqaim, thaum cov lus qhia ncaj thiab angled yog nyiam rau cov hlab ntsha loj. Lawv tuaj yeem raug cais raws li lawv qhov yooj yim, xws li cov lus qhia muag muag lossis tawv tawv.
2. Txheej txheej
Microcatheters tuaj yeem coated nrog cov khoom sib txawv los txhim kho lawv cov kev ua tau zoo. Qee cov txheej txheem muaj xws li hydrophilic lossis hydrophobic coatings los txo cov kev sib txhuam, cov txheej txheem tiv thaiv thrombotic los tiv thaiv cov qog tsim, thiab cov xov tooj cua-opaque coatings kom pom hauv X-rays. Cov txheej txheem no tuaj yeem pab ua kom yooj yim rau kev ntxig thiab tshem tawm ntawm lub catheter, ua rau cov txheej txheem muaj kev nyab xeeb thiab ua haujlwm zoo dua.
3. Ntev thiab txoj kab uas hla
Microcatheters sib txawv ntawm qhov ntev thiab txoj kab uas hla, thiab cov yam ntxwv no yog qhov tseem ceeb rau kev xaiv txoj cai catheter rau ib daim ntawv thov tshwj xeeb. Txoj kab uas hla ntawm lub catheter txiav txim siab qhov loj ntawm lub nkoj nws tuaj yeem nkag tau, thaum qhov ntev yog qhov tseem ceeb rau kev ncav cuag qhov chaw nyuaj. Nyob ntawm tus txheej txheem, qhov ntev ntawm microcatheter tuaj yeem nyob ntawm ob peb centimeters mus rau ob peb meters.
4. Cov khoom siv
Microcatheters tuaj yeem tsim los ntawm ntau yam ntaub ntawv, xws li yas, hlau, lossis ob qho tib si ua ke. Qee cov ntaub ntawv microcatheter tshiab yog raws li cov thev naus laus zis polymer uas muaj kev ua tau zoo dua thiab ua haujlwm ntev. Cov khoom siv rau lub catheter yuav tsum yog biocompatible, non-toxic thiab non-reactive nrog cov tshuaj raug nkag mus rau hauv lub nkoj.
5. Guidewire Compatibility
Feem ntau cov microcatheters yog tsim los ua haujlwm nrog cov kev qhia tshwj xeeb uas ua haujlwm raws li txoj hauv kev thaum ua haujlwm. Kev sib raug zoo ntawm cov catheter nrog cov ntawv qhia yog qhov tseem ceeb rau kev ua tiav daim ntawv thov. Muaj ntau hom kev cob qhia muaj, xws li hydrophobic, floppy, thiab txhav, thiab xaiv cov ntawv qhia uas tsim nyog tuaj yeem pab txhawb txoj kev ua haujlwm.
6. Cov ntawv thov
Microcatheters yog siv rau hauv ntau yam kev kho mob, xws li cov txheej txheem neurointerventional, peripheral vascular kab mob, embolization, thiab radiological cuam tshuam. Txhua daim ntawv thov yuav tsum muaj ib hom microcatheter uas yuav haum rau cov kev xav tau ntawm cov txheej txheem. Kev xaiv ntawm lub catheter yuav nyob ntawm seb lub nkoj loj npaum li cas, hom kab mob, thiab qhov chaw anatomical.
Hauv cov ntsiab lus, microcatheters yog cov cuab yeej tseem ceeb siv hauv ntau daim ntawv thov kev kho mob kom xa cov tshuaj lossis lwm yam khoom rau cov hlab ntsha me me lossis cov khoom nruab nrog cev. Muaj ntau hom microcatheters muaj uas tsim los rau cov hom phiaj tshwj xeeb. Kev xaiv ntawm qhov tsim nyog microcatheter yuav nyob ntawm qhov chaw anatomical, hom kab mob, thiab lub nkoj loj. Kev txhim kho ntawm cov thev naus laus zis polymer siab heev tau ua rau microcatheters muab kev ua haujlwm zoo dua thiab ua haujlwm ntev, ua rau lawv muaj kev nyab xeeb thiab ua haujlwm zoo hauv kev siv kho mob.