I.Cov kev ua tau zoo tseem ceeb ntawm lub distal access catheter muaj tag nrho cov kev soj ntsuam nruj validation los xyuas kom meej tias txhua qhov qhia tau zoo hais txog qhov mob phais:
1. Qhov kawg Passability: Tsis muaj kev hla dhau ntawm cov nkoj uas nyuaj
• The ultra-flexible distal segment and optimized catheter contour design improve tracking performance by 40% compared to traditional catheters. Even in vascular pathways with tortuosity >60 degree, qhov ua tiav ntawm qhov kev tso kawm tseem nyob saum 95%;
• Lub cev catheter siv cov txheej txheem kho mob - qib hydrophilic txheej (tag nrho npog qhov kawg ntawm qhov kawg), txo qhov coefficient ntawm kev sib txhuam thaum sib cuag nrog cov ntshav thiab txo qhov thawb tawm tsam los ntawm 50%. Cov kws phais tau yooj yim tswj tau lub catheter ua ntej ntu los ntawm ntu, kom tsis txhob muaj vascular puas tsuaj los ntawm kev tiv thaiv ntau dhau.
2. Kev them nyiaj yug ruaj khov: Lub hauv paus txhim khu kev qha rau kev ua haujlwm zoo
• Cov coil + braided composite qauv nce kev txhawb nqa los ntawm 60% piv rau cov kab catheter zoo tib yam. Thaum lub sij hawm cov txheej txheem xws li thrombectomy stent tso tawm thiab coil packing, nws ruaj khov rau lub catheter, tiv thaiv kev phais tsis ua hauj lwm vim lub cuab yeej hloov chaw.
• Kev tiv thaiv zoo heev -kinking kev ua tau zoo ua kom lub lumen tseem nyob hauv patent txawm tias nyob hauv txoj kev pheej hmoo ntawm cov hlab ntsha, tshem tawm txoj kev pheej hmoo ntawm kev tawg lossis txhaws thiab ua kom ntseeg tau tias tus neeg sawv cev sib txawv thiab xa tshuaj mus tas li.
3. Kev Tiv Thaiv Kev Nyab Xeeb: Kev Tiv Thaiv Kev Nyab Xeeb rau Neurointerventions
• Biocompatibility: Tsis yog -cytotoxic thiab tsis yog -sensitizing; tus du, tsis yog - ntxeem tau catheter nto txo platelet adsorption thiab txo qhov kev pheej hmoo ntawm thrombosis.
• High Pressure Tolerance: Lub sealing connector withstands siab -pressure txhaj yuav tsum ntawm neurointerventions, tshem tawm cov kev pheej hmoo ntawm qhov sib txawv tus neeg sawv cev to los yog connector detachment. Ib qho - siv tus qauv tsim tiv thaiv kev sib kis -.
II.Distal access catheters, nrog lawv cov cuab yeej zoo, tau dhau los ua cov khoom siv tseem ceeb rau ntau yam kev phais neurointerventional, nrog rau kev siv dav hauv kev kho mob:
1. Mechanical thrombectomy rau mob stroke ischemic
• Raws li "core nkag" rau thrombectomy, 8F series ntxiv -loj lumen qauv tso cai rau ncaj qha thrombus aspiration. Thaum siv ua ke nrog thrombectomy stent, thrombus clearance tus nqi nce mus rau ntau dua 90%;
• Ua raws li "kev sib koom ua ke ntawm kev ua kom lub siab thiab cov txheej txheem thrombectomy," lawv tuaj yeem tsim kom muaj kev nkag tau ruaj khov, txo lub sij hawm vascular recanalization (qhov nruab nrab ntawm 20 feeb luv dua li cov catheters), txo cerebral ischemia thiab hypoxia kev puas tsuaj, thiab txhim kho cov neeg mob prognosis;
• Transradial access qauv (6F-R series) muab kev xaiv tshiab rau cov neeg mob uas tsis tuaj yeem zam qhov kev nkag mus rau femoral, nthuav dav cov pej xeem siv rau thrombectomy.
2. Intracranial Aneurysm Embolization
• 5F thiab 6F series catheters tuaj yeem ncav cuag anterior communicating artery aneurysms, posterior communicating artery aneurysms, thiab basilar artery apex aneurysms, muab kev ruaj khov channel rau coils thiab flow diverters (FDs);
• Cov qauv kev txhawb nqa gradient khaws cov catheter nyob rau hauv qhov chaw thaum lub sij hawm embolization, tiv thaiv coil hloov los yog aneurysm rupture, ua tshwj xeeb tshaj yog haum rau meej embolization ntawm wide-caj dab aneurysms thiab me me aneurysms (inch<3mm);
• Tau tshaj lub zais pa guiding catheters, uas tuaj yeem pab hauv balloon dilation thaum lub sij hawm embolization, txhim kho embolization compactness.
3. Interventional Treatment of Cerebral Vascular Stenosis/Anomalous Vessels
• Kev tso stent rau intracranial arterial stenosis (xws li nruab nrab cerebral artery stenosis thiab vertebral artery stenosis), muab txoj kev txhawb nqa rau balloon dilation catheters thiab intracranial stents kom paub meej stent tso;
• Pab hauv kev cuam tshuam kev cuam tshuam ntawm cerebral vascular malformations (AVMs), tso cai ncaj qha mus rau cov hlab ntsha ntawm cov hlab ntsha tsis zoo, muab cov channel ruaj khov rau cov khoom xa khoom embolic, thiab txo qhov kev pheej hmoo ntawm misembolization hauv cov hlab ntsha ib txwm muaj;
• Cov kev txhawb zog txhawb nqa ntawm 6F-S series zoo tiv thaiv cov elastic recoil quab yuam ntawm cov hlab ntsha stenotic, txhim kho stent qhov chaw ua tau zoo.
4. Lwm Cov Txheej Txheem Neurointerventional
• Intracranial Angiography: Muab txoj hauv kev qis -tsis kam rau qhov sib txawv ntawm tus neeg sawv cev infusion, qhia meej txog qhov intracranial vascular anatomy, thiab pab cov kws kho mob txiav txim siab qhov chaw, qhov twg, thiab cov kab mob ntawm qhov txhab;
• Tshuaj Infusion: Ua kom meej meej infusion ntawm cov tshuaj thrombolytic (xws li tenecteplase) thiab vasodilators, ncaj qha tsom rau qhov chaw mob thiab txhim kho cov tshuaj siv tau zoo;
• Perforator Artery Lesion Intervention: 5F series ntawm nyias - cov khoom siv kab uas hla yog tsim rau kev kho mob me me ntawm cov hlab ntsha perforator (xws li cov hlab ntsha leticulostriate), txo kev puas tsuaj rau cov hlab ntsha ib puag ncig.