Tshaj tawm ntawm Cov Lus Qhia

Lub qhov tshiab tshiab -zoo li tus qauv tsim ua kom cov neeg kho tshuab tswj tau zoo ntawm cov yeeb nkab semi- nruj qis. Peb tau revolutionarily qhia ib hom tshiab ntawm qhov slot-zoo li tus semi- nruj qis cov yeeb nkab raws li cov qauv ntawm "variable pitch helical groove" thiab "interlocking reinforcing ribs," ua kom tau qhov zoo tshaj qhov sib npaug ntawm khoov yooj thiab axial nruj. Los ntawm kev xam qhov tseeb ntawm tus qauv zawj, qhov kev hloov pauv ntawm kev khoov khov kho yog tswj tsis pub dhau 5%, axial compressive nruj yog nce los ntawm 45%, thiab torsional tawv yog txhim kho los ntawm 38%. Los ntawm kev ntsuam xyuas biomechanical, qhov kev kwv yees ntawm lub vojvoog dabtsi yog khoov ntawm cov yeeb nkab qis tshiab nce mus txog 98%, thiab nws tuaj yeem rov qab mus rau qhov ncaj ncaj tsis pub dhau 0.1 vib nas this tom qab tso lub load, muab qhov tsis tau pom dua los ntawm kev tswj kom meej rau txoj kev taug kev nyuaj anatomical.

Kev Tshawb Fawb thiab Kev Txhim Kho Tom Qab Kev Sib Tw

Cov qauv tsim ib txwm muaj peb qhov teeb meem loj ntawm cov qauv: Ua ntej, qhov tsis muaj peev xwm ntawm cov khoom siv kho tshuab. Cov qauv tsim feem ntau yog raws li cov qauv qauv, thiab qhov tsis sib xws ntawm qhov (dav, qhov tob, lub suab) muaj kev sib raug zoo nrog cov khoom siv kho tshuab (bending stiffness, torsional stiffness, axial stiffness), uas ua rau muaj kev hloov pauv mus txog ± 20% ntawm cov khoom siv; Thib ob, kev ntxhov siab hauv cheeb tsam. Cov kev sib npaug ib txwm muaj- lub suab sib txawv muaj qhov tsis sib xws ntawm kev ntxhov siab thaum khoov, thiab qhov siab tshaj plaws ntawm qhov kawg, dhau los ua qhov tshwm sim ntawm qaug zog tawg; Thirdly, ib tug functionality. Tib hom slots yog ib qho nyuaj rau ib txhij ua tau raws li ntau yam yuav tsum tau ntawm kev txhaj tshuaj quab yuam, torque kis tau tus mob, thiab khoov yooj. Finite element tsom xam qhia tau hais tias cov tsoos helical slot tsim tsim ib qho kev ntxhov siab concentration ntawm mus txog 4.5 lub sij hawm thaum khoov, thaum lub tshiab composite tsim yuav raug txo kom qis dua 2.2. Cov tswv yim kho mob qhia tau hais tias qhov tshwm sim ntawm "knotting" ntawm lub cuab yeej vim qhov tsis tsim nyog qhov tsim yog kwv yees li 7%, thiab tus nqi tsis ua haujlwm thaum lub sijhawm ua haujlwm hauv cov hlab ntsha tortuous nce peb zaug.

Core Technological Innovation

• Parametric topology optimization algorithm:Tsim kom muaj kev txawj ntse tsim platform raws li finite keeb tsom xam thiab noob caj noob ces algorithm, nkag mus rau lub hom phiaj mechanical zog (bending stiffness range, torsional stiffness, axial stiffness), thiab lub algorithm cia optimizes qhov tsis. Lub platform muaj 127 tus qauv sib txawv (qhov dav dav, qhov tob, lub suab, lub kaum sab xis, cov duab, thiab lwm yam), thiab los ntawm ntau yam - lub hom phiaj optimization, nws pom Pareto pom kev daws teeb meem. Lub voj voog tsim yog luv luv los ntawm cov tsoos 4-6 lub lis piam mus rau 3-5 hnub, thiab qhov kev ua tau zoo ntawm kev kwv yees qhov tseeb yog siab dua 95%.
• Variable pitch gradient slot tsim:Innovatively tsim lub qhov rooj thiab qhov tob uas sib txawv raws qhov ntev ntawm cov yeeb nkab. Qhov sib thooj (seem ntxiv) siv lub suab loj (2-}3mm) thiab qhov tob qhov tob (30% ntawm phab ntsa tuab), muab siab axial txhav thiab torque kis tau tus mob; ntu nruab nrab (hloov seem) txais lub suab nruab nrab (1-2 hli) thiab qhov nruab nrab qhov tob (50% ntawm phab ntsa tuab), ntsuas qhov kev txhaj tshuaj thiab khoov yooj yim; lub distal seem (ua haujlwm seem) txais lub suab me me (0.5-1mm) thiab qhov tob qhov tob (70% ntawm phab ntsa tuab), ua tiav lub kaum sab xis loj. Los ntawm kev hloov gradient, kev faib tawm kev ntxhov siab ntau dua, thiab qhov siab tshaj plaws yog txo los ntawm 60%.
• Bionic interlocking reinforcement qauv:Kev tshoov siab los ntawm cov pob qij txha ntawm tib neeg qaum, tsim micro interlocking reinforcing ribs ntawm cov qhov. Cov pob txha txhawb nqa muaj qhov siab ntawm 10-15% ntawm phab ntsa tuab thiab qhov dav ntawm 20-30% ntawm qhov dav, tsim cov khoom sib txuas. Thaum cov yeeb nkab khoov, cov ribs reinforcing tiv tauj ib leeg los qhia cov khoom thauj thiab tiv thaiv kev deformation ntau dhau; Thaum nws rov qab mus rau txoj hauj lwm ncaj nraim, cov hlua txuas ntxiv cais tsis cuam tshuam rau elastic rov qab. Qhov kev tsim no ua rau kom muaj zog torsional los ntawm 35% thaum tswj kev khoov yooj yim.

Mechanism ntawm Action

Lub hauv paus ntawm qhov kev tsim kho tshiab yog nyob rau hauv "txhim kho tshuab decoupling thiab optimization." Nyob rau theem khoov khoov, qhov sib txawv pitch tsim ua tiav qhov kev sib tw nruj gradient faib: qhov kawg kawg nrog kev nruj siab ua kom muaj kev sib kis tau zoo ntawm kev txhaj tshuaj, zam qhov "push-txoj hlua nyhuv"; lub distal kawg nrog siab yooj yoog mus rau complex anatomical dabtsi yog khoov, nrog qhov tsawg kawg nkaus khoov vojvoog ncav cuag 1.5 npaug ntawm cov yeeb nkab txoj kab uas hla. Nyob rau theem torsional mechanics, lub interlocking reinforcing ribs tsim ib txoj kev sib kis torque. Thaum qhov kawg kawg tig, qhov chaw inclined ntawm lub zog ribs tuaj rau hauv kev sib cuag, tsim lub zog tangential, ua tiav 1: 1 torque kis tau tus mob, nrog lub lag lub kaum sab xis qis dua 1 degree. Nyob rau theem kev qaug zog mechanics, qhov optimized qhov kawg ntawm lub vojvoog ntawm curvature (R0.05-0.1mm) thiab kev ntxhov siab tis yog optimized, txo cov kev ntxhov siab concentration coefficient los ntawm cov qauv tsim ntawm 3.5-4.5 mus rau 2.0-2.5, thiab nce lub neej qaug zog los ntawm 3-4 zaug. Computational fluid dynamics simulation qhia tau hais tias qhov optimized slot hom txo cov ndlwg tsis kam, nrog rau cov ndlwg tshaj tawm nce los ntawm 30% nyob rau hauv lub perfusion mob, thiab lub clarity ntawm lub teb ntawm lub zeem muag yog zoo dua.

Kev txheeb xyuas qhov ua tau zoo

Hauv kev simulation anatomical qauv, lub qhov tshiab - hom catheter ua tau zoo tshwj xeeb: nyob rau hauv cov qauv simulation ntawm sab hauv carotid artery lub siphon ntu, qhov kev vam meej ntawm cov cuab yeej dhau los ntawm ntu nkhaus tau nce ntawm 85% mus rau 99%; nyob rau hauv cov qauv simulation ntawm sab laug anterior descending coronary hlab ntsha, lub sij hawm tuaj txog catheter tau luv los ntawm 40%; Qhov kev ntsuam xyuas nruj ntawm qhov khoov tau pom tias qhov linear℃ntawm qhov tawv nqaij gradient R² yog ntau dua 0.99, thiab qhov kev twv ua yuam kev ntawm lub kaum sab xis yog tsawg dua 2%. Hauv kev sim qaug zog, nyob rau hauv ± 90℃dabtsi yog khoov thiab 4Hz tej yam kev mob, tus qauv tshiab muaj lub neej ntev ntawm 1.5 lab lub voj voog, uas yog peb npaug ntawm cov qauv tsim. Multicenter cov kev tshawb fawb soj ntsuam pom tau hais tias nyob rau hauv neurointerventional kev phais, qhov tshwm sim ntawm kinking ntawm microcatheter nyob rau hauv cov hlab ntsha tortuous txo los ntawm 6.8% mus rau 0.9%; nyob rau hauv percutaneous nephrolithotomy kev phais, qhov ua tau zoo ntawm cov twj tso kua mis txhaj tshuaj tau nce 42%; Hauv kev phais mob atrial fibrillation ablation, kev ruaj ntseg ntawm catheter qhov kev sib cuag nrog cov ntaub so ntswg nce 35%. Cov kws kho mob cov kev tshawb fawb txog kev ua haujlwm tau qhia tias 94% ntawm cov kws phais neeg ntseeg tias tus qauv tshiab txhim kho kev tswj xyuas qhov tseeb thiab kev kwv yees, thiab kev kawm nkhaus tau luv luv los ntawm 50%.

Kev tshawb fawb thiab kev loj hlob Strategy thiab Philosophy

Peb tawm tswv yim lub tswv yim tshiab ntawm "cov qauv ua haujlwm ua haujlwm, tsim tsim los ntawm kev kho mob," thiab tsim kom muaj CDIO (Clinical Demand - Design - Implementation - Operation) kaw-loop R&D system. Hauv qhov kev thov kho mob theem, los ntawm kev soj ntsuam video phais thiab kev xam phaj kws kho mob, 156 cov ntsiab lus xav tau tseem ceeb tau muab rho tawm thiab suav rau hauv 23 engineering tsis; nyob rau hauv theem tsim, topology optimization thiab generative tsim tau txais yuav los nrhiav cov qauv zoo nyob rau hauv kev txwv tsis pub ua haujlwm; nyob rau hauv lub sij hawm siv, ceev prototyping iterations los ntawm additive manufacturing tau ua, txo txhua lub voj voog tsim mus rau 2 lub lis piam; nyob rau hauv lub lag luam theem, lub chaw kho mob cov ntaub ntawv tawm tswv yim tau tsim, sau ntau tshaj 800 cov ntaub ntawv phais txhua xyoo, tsav cov khoom iteration. Peb tau tsim kev koom tes nrog 28 lub chaw kho mob saum toj kawg nkaus thoob plaws ntiaj teb, tsim "kev kho mob{11}} engineering" ob- txoj kev tawm tswv yim mechanism. Nyob rau tib lub sijhawm, peb tau tsim lub platform sim virtual raws li cov ntsiab lus finite, uas tuaj yeem kwv yees cov khoom lag luam ua ntej kev tsim khoom, txo qis kev ntsuas lub cev los ntawm 75%.

Yav tom ntej Outlook

Cov qauv tsim yuav hloov mus rau kev txawj ntse, hloov tau, thiab ntau yam -functionality. Peb tab tom txhim kho "qhov sib txawv ntawm qhov sib txawv" qhov sib txawv, uas tuaj yeem ua tiav qhov tiag - lub sijhawm khov kho thaum lub sijhawm ua haujlwm los ntawm cov duab nco alloys lossis electroactive polymers; tsim "ntau-mode" slots, uas tuaj yeem ua rau nws tus kheej deflected hauv ntau lub dav hlau los ntawm kev tswj cov hlau sib txuas; Tshawb nrhiav "kua-tsav" qhov, uas tuaj yeem hloov pauv qhov geometry los ntawm hydraulic lossis pneumatic siab kom ua tiav tsis yog -hlau manipulation. Xyoo 2028, peb yuav tso cov raj qis qis nrog "kev xaav tshuab," uas tuaj yeem saib xyuas qhov kev faib tawm ntawm lub sijhawm tiag tiag siv fiber ntau optic grating sensors thiab pub cov ntaub ntawv rov qab mus rau qhov kev khiav hauj lwm tuav kom ua tiav kev tawm tswv yim tswj. Saib ntxiv tom ntej, raws li 4D luam ntawv, "kev loj hlob-hom" qhov yuav ua tau. Cov twj paj nruag tuaj yeem hloov kho qhov tsis sib xws raws li qhov chaw nyob hauv lub cev, ua tiav qhov tseeb "kev hloov kho ntse," coj cov kev hloov pauv hloov mus rau kev phais lub cev.