Tubing Rau Guidewires: Anti-Kink Tsim Hauv Endovascular Navigation

Cov kws tsim khoom siv cuab yeej tsim cov tubing rau cov ntawv qhia xov xwm ntsib qhov chaw kho mob hnyav: kinking thaum lub sij hawm endovascular navigation. Thaum guidewire tubing khoov nyob rau hauv cov hlab ntsha tortuous, lub zos buckling tsim folds mus tas li. Kinked tubing poob thawb thiab torque kis tau tus mob, thaiv cov khoom xa tuaj thiab tuaj yeem ua rau cov hlab ntsha puas tsuaj. Ntau cov tubing uas twb muaj lawm tsim qhov tseem ceeb ntawm kev hloov pauv ib leeg yam tsis xav txog buckling kuj. Nyias-phab ntsa hypotubes tshwj xeeb tshaj yog yooj yim. Kev tiv thaiv -kink kev ua tau zoo dhau los ua qhov tseem ceeb rau kev coj ua cov raj siv hauv kev cuam tshuam hauv coronary, peripheral thiab neurovascular. Qhov kev sib tw tseem ceeb yog los tsim cov tubing uas khoov tau zoo yam tsis muaj kev sib tsoo hauv zos nyob rau hauv txoj kev anatomical loads.

Anti- kink tubing rau guidewires cia siab rau hypotube laser txiav kom faib bending kev nyuaj siab tusyees hla lub raj phab ntsa. Lub hypotube tuaj yeem tsim kho kom zoo dua qub, zoo dua torque yam ntxwv, lossis ob qho tib si rau catheter thiab guidewire tubing daim ntaub ntawv. Peb qhov ntau lawm npog tubing txheej diameters Ø0.20mm txog 20mm nrog qhov tsawg kawg nkaus kerf dav ntawm 0.012mm. Laser txiav slots tsim segmented lug. Thaum khoov tshwm sim, cov ntu no tig maj mam es tsis txhob tsom kev ntxhov siab ntawm ib qho taw tes. Txiav qauv geometry tswj lub vojvoog dabtsi yog khoov ua ntej buckling tshwm sim. Kev tiv thaiv- kink tsim tsis tshem tawm qhov tawv tawv; nws redistributes kev nyuaj siab yog li lub raj tsim ib tug du loj - radius nkhaus es tsis ntse hauv zos folds. Cov khoom siv ductility thiab qhov ntug xov kuj tseem cuam tshuam rau buckling tsis kam, raws li qhov tsis xws luag ua cov ntsiab lus pib rau lub cev qhuav dej.

Tubing rau guidewires anti-kink designs yog categorized los ntawm cov khoom thiab laser txiav qauv. Stainless hlau substrates suav nrog 304, 316L thiab 17-7PH muaj kev ruaj ntseg zoo rau kev tiv thaiv- kink tubing. Nitinol's superelasticity pab rov qab zoo tom qab khoov thiab txo cov buckling mus tas li. L605 cobalt alloy muab zoo heev qaug zog thiab buckling kuj. Cov qauv txiav muaj xws li cuam tshuam kauv txiav raws li thawj qhov kev tiv thaiv -kink tov. Segmented spiral slots khaws cov khoom txuas txuas txuas ntxiv los tiv thaiv lub zos vau, ua kom zoo dua cov qauv txuas txuas ntxiv hauv kev sim kink. Radial txiav qauv yog siv rau hauv zos los tiv thaiv kink qhov cuab lub zog ntawm kev hloov chaw. Tag nrho cov qauv hybrid sib xyaw ua ke cuam tshuam cov kauv thiab luv luv uncut reinforcement seem kom ua kom buckling tsis kam. Cov tubing variants no yog siv nyob rau hauv minimally invasive xa tshuab rau cov hlab plawv, zis, endoscopic, neurological thiab peripheral vascular txheej txheem.

Cov lus qhia ua kom siv tau rau kev tiv thaiv - kink tubing rau guidewires pib nrog anatomical load tsom xam. Daim ntawv qhia lub voj voog uas yuav tsum tau khoov thiab thauj khoom nyob rau hauv lub hom phiaj cov hlab ntsha. Xaiv cov ntaub ntawv tsim nyog thiab txais yuav cuam tshuam cov kauv txiav raws li qhov nyiam los tiv thaiv - kink qauv. Tsim 2D / 3D daim duab qhia txog kev txiav qhov sib nrug, kerf dav thiab txhawb nqa tsis yog - txiav ntu. Peb lub Hoobkas tuaj yeem tsim cov qauv raws li cov duab kos lossis cov neeg siv khoom-prototypes muab. Laser txiav yuav tsum tswj kom muaj kerf zoo ib yam thiab zam dhau- txiav uas ua rau cov choj tsis muaj zog. Electropolish qhov npoo kom tshem tawm cov micro- tawg. Ua kom tiav lub rooj ntev zaum tiv thaiv-kink test, torsion testing thiab cyclic fatigue testing. Kev tsim khoom ua raws li ISO9001: 2015 thiab ISO13485 kev tswj hwm kev kho mob zoo. Standard carton packaging or custom packing protects thin-wall tubing los ntawm mechanical puas thaum lub sij hawm thauj thiab tuav.

Cov lus qhia siv tau los ntawm kev tsim cov khoom lag luam qhia ntau zaus los tiv thaiv -kink tsim yuam kev rau tubing rau cov lus qhia. Nruam tag nrho cov kauv qauv zoo li buckle yooj yim nyob rau hauv nruj - vojvoog dabtsi yog khoov, vim tsis muaj cov khoom txuas txuas ntxiv los tuav lub raj hla -section. Cov engineers qee zaum tshem tawm cov khoom siv ntau dhau kom tau txais kev hloov pauv thiab txo qis buckling tsis kam. Cov kev hloov pauv ntawm qhov sib zog ua kom muaj zog bending loads thiab ua rau kinking ntawm kev hloov pauv. Kev ua tiav tsis zoo ua rau micro- tsis xws luag uas nthuav dav nyob rau hauv cyclic dabtsi yog khoov thiab ua rau lub zos vau. Cov kws tshaj lij tsim qauv khaws cov ntu ntu ntu ntu tsis tu ncua thiab txais yuav maj mam txhav gradients. Lub rooj zaum kink kuaj yuav tsum rov ua dua qhov nruj tshaj plaws anatomical dabtsi yog khoov vojvoog uas xav tau hauv kev siv tshuaj kho mob. Txawm hais tias qhov kev sim zoo li qub dhau los, ntev - lub sij hawm cyclic dabtsi yog khoov qaug zog yuav tsum tau txheeb xyuas ua ntej tso tshuaj kho mob.

Txhawm rau kom ua tiav, kev tiv thaiv kev tiv thaiv -kink kev ua tau zoo ntawm tubing rau guidewires tau ua tiav los ntawm kev sib txuas cov khoom siv kom raug thiab cuam tshuam laser txiav hypotube architecture. Kev cuam tshuam cov qauv ntawm cov kav hlau txais xov kom tiv thaiv kev hla -section vau thaum muab kev yooj yim txaus rau kev tsav nkoj. Smooth ntug polishing thiab maj mam txhav gradients ntxiv txo kink kev pheej hmoo. Qhov kev sib npaug no khaws cia muaj zog, kev taug qab thiab kev sib kis ntawm lub zog uas yuav tsum tau ua rau percutaneous transluminal coronary angioplasty, kho aortic aneurysm thiab neurointervention. ISO13485 tau ntawv pov thawj ntau lawm lav zoo ib yam rau kev kho mob -qib hypotube tubing rau guidewires. Anti- kink tsim tsis tuaj yeem kho raws li kev xav tom qab; nws yuav tsum tau muab kev koom ua ke los ntawm cov qauv tsim ntxov tshaj plaws.

Tom ntej no txoj kev loj hlob ntawm tubing rau guidewires yuav ua ntej los tiv thaiv -kink technology los ntawm hybrid multi-cov ntaub ntawv hypotubes thiab AI- pab qauv optimisation. Cov qauv hlau tshiab thiab cov txheej txheem phab ntsa sib xyaw yuav txhim kho buckling tsis kam thaum ua kom muaj kev ua haujlwm me me ntxiv rau cov txheej txheem me me hauv qhov nruab nrab - nkoj. Kev txawj ntse finite caij simulation yuav ceev nrooj txiav cov qauv los kwv yees kink tsis ua tiav qhov pib. Cov neeg tsim khoom yuav tau txais kev tshuaj xyuas qhov muag tsis pom kev los kuaj xyuas micro- tsis xws luag ntawm cov npoo. OEMs thiab cov chaw muag khoom hypotube yuav tsum tau sib koom ua ke thaum ntxov hauv kev tsim los ua kom zoo dua los tiv thaiv -kink kev ua tau zoo. Kev tsim kho tshiab tsis tu ncua hauv kev tiv thaiv- kink tubing rau cov ntawv qhia yuav nthuav dav ciam teb ntawm kev cuam tshuam tsawg kawg nkaus rau cov kab mob vascular complex.