Material-Driven Biocompatibility Performance Of Medical Hypotube

Pain PointsKev xaiv cov khoom siv rau kev kho mob hypotube feem ntau ua kom yooj yim rau cov txheej txheem kho tshuab ib leeg, thaum lub sij hawm ntev biocompatibility tau txais kev saib xyuas tsis txaus. Cov neeg yuav khoom tuaj yeem ua qhov tseem ceeb ntawm lub zog tensile lossis tus nqi yam tsis muaj kev soj ntsuam tag nrho cov kev coj cwj pwm hauv tib neeg lub cev ib puag ncig . 304 stainless hlau, txawm tias siv dav, nthuav tawm cov kev txwv rau kev siv txuas ntxiv hauv tsev. Nitinol muaj superelasticity tab sis xav tau kev kho saum npoo kom txo qis ion tso tawm . 17-7PH thiab L605 xa cov tshuab ua haujlwm siab tab sis yuav tsum tau ua tib zoo saib xyuas rau lub sijhawm sib cuag. Cov khoom siv tsis zoo-daim ntawv thov sib txuam tuaj yeem ua rau muaj kev kub ntxhov hauv zos, thrombosis kev pheej hmoo los yog muaj feem cuam tshuam txog corrosion. Hauv cov txheej txheem kev cuam tshuam xws li los ntawm kev kho lub plab aortic aneurysm mus rau qhov tso zis endoscopy, kev xaiv cov khoom siv zoo tshaj plaws qhia txog qhov kev lav phib xaub hauv tsev kho mob. Yog tsis muaj kev taw qhia meej txuas cov qib alloy mus rau lub sijhawm sib cuag thiab ib puag ncig anatomical, cov pab pawg ua haujlwm yuav raug nqi rov qab tsim dua tshiab thaum lub sijhawm tswj hwm.

Txoj Cai CoreTxhua qhov kev kho mob hypotube substrate nqa cov khoom sib txawv ntawm cov khoom siv hlau thiab cov khoom siv lom neeg, thiab laser txiav ntxiv hloov kho lub xeev, uas sib sau ua ke txiav txim siab txog kev nyab xeeb hauv vivo. Cov ntaub ntawv nyoos muaj xws li 304 stainless hlau (1.4301), 316 stainless hlau (1.4401), 17-7PH (AMS 5528), Nitinol thiab L605 cobalt-based alloy. 304 haum rau lub sijhawm luv luv; 316 muab kev txhim kho corrosion tiv thaiv rau lub cev ntev ntev . 17-7PH qhia txog kev qaug zog zoo nyob rau hauv kev rov ua dua tshiab. Nitinol muab tus cwj pwm superelastic zoo tagnrho rau kev taug kev nyuaj micro-vasculature. L605 muab lub zog siab nyob rau hauv siab-siab vascular mob. Laser ua nyob rau hauv Ø0.20 mm-20 mm qhov luaj li cas ntawm 0.012 mm tsawg kerf tsim cov npoo uas yuav tsum tau txais kom zoo tom qab ua kom tshem tawm cov micro-burrs. Raws li ISO13485 cov txheej txheem zoo, cov ntaub ntawv raw cov ntaub ntawv pov thawj, laser txiav, nto tiav thiab kev tswj kom huv si ua ke kom paub txog biocompatibility zoo rau cov khoom tiav hypotube.

Kev faib cov cuab yeejPab pawg kho mob hypotubes los ntawm cov khoom siv biocompatibility profiles. Ua ntej, 304 stainless-steel hypotube: tus nqi tsim nyog rau lub sijhawm luv luv kev cuam tshuam cov khoom siv. Thib ob, 316 / 316L stainless-steel hypotube: txhim kho corrosion kuj rau cov txheej txheem ntev dua thiab txuas cov ntaub so ntswg ntev. Thib peb, 17-7PH hypotube: qib high-fatigue-resistance rau cov khoom siv uas raug rov ua dua tshiab. Plaub, Nitinol hypotube: superelastic alloy rau neuro-vascular thiab tortuous peripheral hlab navigation. Thib tsib, L605 hypotube: high-strength cobalt alloy rau high-load plab aortic aneurysm cuam tshuam scenarios. Kev cai configurations tuaj yeem tsim cov neeg siv khoom 2D / 3D kos duab lossis kuaj lub cev.

Cov Txheej Txheem Ua HaujlwmTsim cov khoom-daim ntawv thov sib piv cov haujlwm ua haujlwm thaum lub sijhawm cov lus qhia ntawm hypotube. Txhais lub sijhawm tiv tauj, ib puag ncig anatomical thiab cyclic loading tej yam kev mob ua ntej xaiv alloy. Siv 304 hypotube rau cov txheej txheem luv luv uas tswj tus nqi tseem ceeb. Xaiv 316L thaum twg xav tau kev sib cuag lub cev ntev. Xaiv 17-7PH rau cov khoom siv uas muaj ntau lub voj voog khoov. Qhia meej Nitinol rau cov ntawv thov uas xav tau kev hloov pauv huab cua. Rau kev ua haujlwm siab ntawm lub nkoj loj, ntsuas L605. Thaum lub sij hawm tsim khoom, xyuas cov ntaub ntawv pov thawj raw khoom. Tswj laser kerf zoo thiab ua raws li electropolishing los yog passivation kev kho mob. Ua kom huv huv validation rau particulate residues. Txhawb nqa kev ntim khoom raws li ISO9001: 2015 thiab ISO13485 cov txheej txheem.

Kev paub tiag-lub ntiaj tebKev ua haujlwm ntawm OEM qhov kev paub qhia tau hais tias qhov kev ntsuam xyuas cov khoom siv-biocompatibility thaum ntxov txo qis kev tsim kho zaus ntau dua . 316L hypotubes tswj qhov chaw ruaj khov nyob rau hauv lub sij hawm ntev kev cuam tshuam cov hlab plawv, txo qis kev pheej hmoo ntawm corrosion. Nitinol hypotubes ua rau muaj kev cuam tshuam rau cov kev taw qhia hauv neuro-interventional chaw uas cov hlau tsis muaj steel hlau tsis tuaj yeem ua kom tiav . 17-7PH hypotubes khaws cov neeg kho tshuab kev ncaj ncees tom qab ntau txhiab lub voj voog khoov rau cov twj paj nruag endoscopic. L605 hypotubes qhia kev txhim khu kev qha nyob rau hauv qhov xav tau hemodynamic loads ntawm plab aortic aneurysm txheej txheem. Thaum cov neeg muag khoom hypotube tuav tag nrho ISO13485 traceability rau cov khoom siv raw khoom, kev tswj cov ntaub ntawv npaj ua kom zoo dua rau cov tuam txhab kho mob.

XausBiocompatibility ntawm kev kho mob hypotube originates los ntawm kev sib xyaw substrate alloy zog thiab post-laser nto zoo. Mechanical kev ua tau zoo tsis tuaj yeem raug txiav tawm los ntawm kev txiav txim siab txog kev nyab xeeb lom neeg. Kev faib cov khoom tshwj xeeb pab cov engineers sib tw cov qib alloy rau cov txheej txheem sijhawm thiab cov xwm txheej anatomical. Raws li raw cov ntaub ntawv traceability, laser-txiav ntug tiav thiab tswj huv si yog indispensable kauj ruam. Kev xav txog kev xaiv cov khoom siv tiv thaiv kom tsis txhob muaj kev pheej hmoo kho mob thiab kev tswj xyuas qeeb, ua lub hauv paus ntawm kev txhim kho kev kho mob zoo rau cov catheter thiab endoscopic kev xa khoom.

Outlook & Cov lus qhiaCov neeg muab khoom sib txuas yuav tsum sau cov lus qhia meej ntawm daim ntawv thov-kwv yees rau txhua qib ntawm cov khoom siv hypotube. Cov neeg tsim khoom siv yuav tsum suav nrog kev tshuaj xyuas cov ntaub ntawv-biocompatibility ntawm lub tswv yim-phase tsim rooj vag. Tshawb xyuas cov txheej txheem kev hloov kho saum npoo av txhawm rau txhim kho thrombogenicity profiles ntawm laser-txiav hypotubes. Kev lag luam consortia tuaj yeem txhawb nqa cov ntaub ntawv qhia txog kev coj ua zoo tshaj plaws rau cov khoom siv hypotube tsim nyog los txhawb nqa tag nrho cov khoom zoo thoob plaws cov khoom siv kho mob.