Neurovascular micro catheters yog cov cuab yeej siv rau cov txheej txheem cuam tshuam me me hauv kev kuaj mob thiab kev kho mob ntawm ntau yam paj hlwb xws li aneurysms, arteriovenous malformations, thiab mob stroke. Cov catheters no yog tsim los rau kev taug kev los ntawm cov kev sib txuas ntawm cov hlab ntsha thiab xa cov tshuaj kho mob lossis cov cuab yeej kuaj mob mus rau qhov chaw nyob hauv lub hlwb thiab tus txha caj qaum.
Tsim kom muaj txiaj ntsig zoo neurovascular microcatheters yog qhov tseem ceeb rau kev txhim kho cov txiaj ntsig ntawm tus neeg mob thiab txo cov teeb meem cuam tshuam nrog cov txheej txheem no. Kab lus no qhia txog cov ntsiab lus tseem ceeb rau kev tsim cov kab mob neurovascular microcatheters thiab tshawb nrhiav qhov kev nce qib tshiab hauv daim teb no.
Kev txiav txim siab tsim
1. Qhov loj me thiab yoog raws
Neurovascular micro catheters feem ntau me me piv rau lwm cov catheters siv rau cov hlab plawv lossis cov txheej txheem peripheral. Txoj kab uas hla ntawm cov catheters no nyob ntawm {{0}}.5 mus rau 2.0 hli, nyob ntawm daim ntawv thov thiab lub nkoj loj. Qhov me me ntawm lub catheter txo qhov kev pheej hmoo ntawm kev puas tsuaj ntawm cov hlab ntsha thiab txo tus neeg mob qhov tsis xis nyob thaum ua haujlwm.
Flexibility yog lwm qhov tseem ceeb hauv kev tsim cov neurovascular microcatheters raws li lawv yuav tsum tau taug kev los ntawm cov hlab ntsha hauv lub hlwb thiab qaum qaum. Lub catheter lub taub yuav tsum yoog txaus kom ua raws li cov nkhaus nkhaus thiab cov hlab ntsha uas muaj zog thaum tuav nws cov duab thiab taug qab qhov tseeb.
2. Khoom siv thiab txheej
Kev xaiv cov khoom siv rau neurovascular microcatheters nyob ntawm daim ntawv thov thiab cov kev cai ntawm cov txheej txheem. Feem ntau cov catheters yog ua los ntawm cov khoom siv biocompatible xws li polyurethane, silicone, thiab polyethylene. Cov ntaub ntawv no muaj biocompatibility zoo heev thiab tsis tshua muaj thrombogenicity, txo qhov kev pheej hmoo ntawm cov ntshav txhaws hauv lub catheter.
Txheej cov catheter nrog cov ntaub ntawv hydrophilic lossis hydrophobic tuaj yeem txhim kho nws txoj kev tuav thiab kev taw qhia. Hydrophilic coatings txo kev sib txhuam thiab kev tiv thaiv thaum lub sij hawm catheter insertion, thaum hydrophobic coatings txhim kho lub catheter nrhiav qhov tseeb thiab steerability nyob rau hauv complex anatomies.
3. Tswv yim thiab zoo li
Lub taub thiab cov duab ntawm neurovascular microcatheters ua lub luag haujlwm tseem ceeb hauv lawv cov kev ua tau zoo thiab kev ua tau zoo. Lub taub yuav tsum yog atraumatic thiab du kom tsis txhob muaj kev puas tsuaj rau cov hlab ntsha thiab txo qhov kev pheej hmoo ntawm cov hlab ntsha perforation los yog dissection. Lub taub hau kuj tseem tuaj yeem ua qhov txawv raws li daim ntawv thov, xws li cov mos txwv duab rau aneurysm embolization los yog ib qho kev sib txuas rau cov hlab ntshav hauv cov neeg mob stroke.
Tag nrho cov duab ntawm lub catheter tseem cuam tshuam nws lub peev xwm los taug kev los ntawm kev sib txuas vascular. Qee lub catheters muaj qhov kawg ntawm qhov kawg, xws li 45- lub kaum sab xis, txhawm rau txhawm rau nkag mus rau qee qhov chaw hauv lub hlwb lossis qaum qaum. Catheters kuj tseem tuaj yeem muaj ntau qhov nkhaus lossis khoov kom tswj tau nws txoj kev taug qab qhov tseeb thiab txo qhov kev tawm tsam thaum taug kev los ntawm cov hlab ntsha uas muaj zog.
4. Kev taw qhia pom
Kev taw qhia pom yog qhov tseem ceeb rau cov neurovascular microcatheters kom ntseeg tau tias lawv qhov chaw tso rau hauv lub hom phiaj. Kev siv cov duab tiag tiag hauv lub sijhawm xws li fluoroscopy lossis angiography pab coj tus catheter qhov chaw thiab pom kev xa cov tshuaj kho mob lossis cov cuab yeej kuaj mob.
Qee cov catheters muaj cov cim radiopaque lossis cov duab-txhim kho cov txheej txheem ze ntawm lub taub kom txhim kho lawv qhov pom ntawm fluoroscopy lossis angiography. Kev nce qib tsis ntev los no hauv kev yees duab thev naus laus zis kuj tau ua rau kev txhim kho catheters nrog kev sib xyaw micro-optics lossis sensors, tso cai rau kev pom lub sijhawm tiag tiag ntawm lub catheter txoj haujlwm thiab taug qab qhov tseeb.
Tsim kom muaj txiaj ntsig zoo neurovascular microcatheters yuav tsum tau ua tib zoo xav txog ntau yam xws li qhov loj thiab qhov yooj yim, cov khoom siv thiab txheej, lub hau thiab cov duab, thiab kev taw qhia pom. Qhov kev nce qib tshiab tshaj plaws hauv daim teb no tau ua rau kev txhim kho cov catheters nrog kev txhim kho cov khoom thiab kev ua tau zoo, ua rau cov neeg mob tau txais txiaj ntsig zoo dua thiab txo cov teeb meem.
Raws li qhov kev thov rau cov txheej txheem cuam tshuam tsawg kawg nkaus hauv cov kev cuam tshuam neurovascular tseem nce ntxiv, qhov tseem ceeb ntawm kev tsim cov kab mob neurovascular microcatheters tsis tuaj yeem overstated. Kev nce qib tsis tu ncua hauv daim teb no yuav ua rau muaj kev txhim kho ntxiv hauv kev kuaj mob thiab kev kho mob ntawm ntau yam paj hlwb.