Catheter delivery system developers ntsib qhov mob nruj-gradient cov ntsiab lus. Uniform-pattern laser-cut hypotube muab cov cuab yeej zoo sib xws thoob plaws qhov ntev, uas tsis sib haum nrog cov kev xav tau hauv ntiaj teb. Lub proximal kawg xav tau siab torsional rigidity rau tus kws phais neeg hloov cov tswv yim. Lub taub hau distal yuav tsum tau ua kom yooj yim rau kev taug kev winding tib neeg cov hlab ntsha thiab tsis txhob raug mob vascular. Ib leeg-tus qauv hypotube yog ua rau ntu ntu ntu nruj dhau los dhau qhov kev xav ntawm lub cev, lossis ua rau qhov kawg ntawm qhov kawg ua raws li kev xa tawm torque zoo. Yog tsis muaj qhov sib thooj-distal graded-stiffness tuning, cov cuab yeej qhia tau tias tsis muaj kev taug qab, kink tsis ua haujlwm, qhov tsis raug ntawm qhov taw qhia, thiab ua rau muaj kev pheej hmoo tsis zoo rau kev ua haujlwm coronary, peripheral thiab neurological minimally-invasive.

Lub hauv paus ntsiab lus ntawm kev ua haujlwm tseem ceeb ntawm qib-qib laser-txiav hypotube nyob rau hauv qhov sib txawv-density laser slit kev npaj raws lub raj axial kev taw qhia. Parent tubing npog qhov ntev Ø0.20 mm-20 mm, qhov tsawg kawg nkaus ua tiav kerf dav txog 0.012 mm. Cov neeg tsim qauv hloov kho cov qauv txiav, qhov ntev thiab qhov txuas txuas txuas ntawm qhov kawg ntawm qhov kawg mus rau qhov kawg. Cov ntu sib thooj tau txais cov slits me me thiab cov khoom siv hlau tsis sib xws kom tuav lub zog siab thiab thawb lub zog. Distal seem siv tuab laser slits los txhim kho khoov ua raws. Ib qho hypotube tuaj yeem sib xyaw ua ke ntau hom qauv: cuam tshuam kauv ntu nyob ze ntawm tus kov, txuas txuas txuas rau hauv nruab nrab thaj tsam, ntu radial-txiav ntu ntawm qhov deb. Cov yam ntxwv ntawm cov khoom siv cuam tshuam nrog cov qauv layout los tsim kev hloov pauv tsis tu ncua es tsis txhob ua haujlwm nrawm nrawm.

Cov qauv kev faib tawm loj rau qib-qeb-qib hypotube suav nrog plaub lub hauv paus ntsiab lus. Kev cuam tshuam kauv txiav qauv khaws cov khoom siv hlau txuas ntawm cov hlua khi, feem ntau yog siv rau ntawm thaj tsam ze kom sib npaug torsion stability thiab nruab nrab yooj. Nruam muab kauv txiav qauv yam tsis muaj kev txuas txuas muaj kev khoov siab, feem ntau teem rau nruab nrab-distal raj ntu. Radial txiav qauv tsim cov cheeb tsam puag ncig hloov tau yooj yim, thov rau qhov kev ua haujlwm ntawm qhov kev sib tw ntawm kev sib tw. Bespoke kev cai txiav cov qauv sib txuas ua ke saum toj no-hais geometries tom qab cov neeg siv khoom 2D / 3D kos duab, paub txog ntau theem nruj variation rau complex-anatomy-oriented devices. Cov qauv sib txawv tuaj yeem ua ke ntawm cov hlau tsis muaj steel, Nitinol thiab L605 hypotube rau plab aortic aneurysm, neurology thiab imaging-assisted interventional khoom.

Step-by-step tswv yim ua hauj lwm workflow rau gradient-stiffness hypotube txoj kev loj hlob. Ua ntej, txhais cov hom phiaj txhav ntawm qhov sib thooj, nruab nrab thiab qhov nruab nrab raws li cov ntaub ntawv kho mob anatomical. Xaiv cov khoom siv lub hauv paus: 304, 316, 17-7PH lossis Nitinol. Ua kom tiav 2D / 3D daim duab nrog cov qauv kev faib ua kom pom tseeb, qhov tsis sib xws thiab kerf specification (yam tsawg kawg 0.012 hli). Hloov cov ntaub ntawv tsim tawm mus rau laser-txiav ntau lawm system, txheeb xyuas cov qauv hloov chaw ua haujlwm. Ua tiav laser machining, siv deburring thiab precision nto tiav rau daim ntawv thov kev kho mob. Ua segmented mechanical testing: test torque transmission from proximal input to distal output, kink resistance and cyclic bending for every stiffness zone. Ua cov kev soj ntsuam zoo ua raws li ISO 13485 thiab ISO 9001: 2015. Txais cov txheej txheem thawv lossis ntim ntim rau cov khoom tiav hypotube.

Kev paub txog kev lag luam hauv kev ua lag luam qhia txog kev ua yuam kev gradient-design. Kev hloov pauv nrawm nrawm ua rau cov neeg kho tshuab kev ntxhov siab; tawg yooj yim tshwm sim ntawm tus qauv ciam teb nyob rau hauv rov torsion thiab khoov. Tshaj-dense distal slits txi tub raj radial compression kuj. Qee qhov haujlwm tsuas yog simulate qhov tawv nqaij zoo li qub thiab tsis quav ntsej txog kev ua haujlwm qaug zog ntawm cov qauv hloov chaw. Nitinol hypotube gradient tsim xav tau kev ceev faj ntxiv ntawm laser tshav kub cuam tshuam cheeb tsam ntawm cov npoo. Qhov kev coj ua zoo tshaj plaws qhia txog kev tsim cov qauv hloov pauv hloov pauv tsis yog ib thaj tsam nyuaj. Kev kuaj lub cev qauv yog irreplaceable; theoretical simulation tsis tuaj yeem hloov kho qhov tseeb ntawm lub ntiaj teb kev tshuaj ntsuam xyuas. Kev xa cov qauv siv lub cev pab cov tuam txhab tsim cov tswv yim tsim.

Nyob rau hauv cov ntsiab lus, graded-stiffness laser-cut hypotube daws qhov classic contradiction ntawm proximal torque xav tau thiab distal yooj yuav tsum tau. Los ntawm kev kho cov kauv, radial thiab kev cai txiav cov qauv faib raws lub raj axis, engineers ua tiav cov kev hloov pauv hloov pauv mus tas li. Cov qauv hloov pauv cheeb tsam tsim feem ntau txiav txim siab txog kev ua haujlwm qaug zog. Sib piv cov khoom tsim nyog substrate nrog gradient qauv layout guarantees kev thawb-muaj peev xwm, trackability thiab anti-kink muaj peev xwm rau minimally-invasive xa systems. ISO 13485-tswj kev tsim khoom ua kom muaj kev nyab xeeb ntawm kev kho mob.

Saib ua ntej, cov cuab yeej cuam tshuam nrhiav kev ua haujlwm zoo tshaj plaws rau kev kho mob neuro-vascular thiab complex aortic. Hypotube qauv tsim yuav txhim kho mus rau ntau ntu ultra-fine gradient layout. Cov cuab yeej OEMs yuav tsum koom nrog cov tuam txhab tsim khoom nyob rau theem pib lub tswv yim txhawm rau txhim kho cov qauv kev faib tawm. Kev sib koom ua ke ntawm pab neeg tsim kho kho mob thiab cov khoom siv laser-processing yuav txhawb nqa dav dua ntawm gradient-stiffness hypotube rau lwm tiam percutaneous interventional instruments.