Lub vas sab no yog tswj hwm los ntawm ib lossis ntau lub lag luam uas Informa PLC muaj thiab txhua txoj cai luam tawm yog lawv li. Lub chaw ua haujlwm sau npe ntawm Informa PLC yog 5 Howick Place, London SW1P 1WG. Sau npe hauv tebchaws Askiv thiab Wales.No. 8860726.
Niaj hnub no, yuav luag txhua qhov kev txiav laser precision ntawm cov hlau thiab cov hlau tsis yog hlau yog ua tiav los ntawm kev siv cov cuab yeej uas muaj fiber lasers lossis ultrashort pulse (USP) lasers, lossis qee zaum ob qho tib si. Hauv tsab xov xwm no, peb yuav piav qhia txog qhov zoo sib txawv ntawm ob lub lasers thiab saib seb ob lub tuam txhab tsim khoom siv cov lasers no li cas. NPX Medical (Plymouth, MN) yog lub tuam txhab ua haujlwm tshwj xeeb uas tsim ntau yam khoom siv thiab cov cuab yeej xa tawm, xws li stents, implants, thiab cov raj yooj ywm, siv cov tshuab uas suav nrog fiber lasers. Motion Dynamics tsim cov khoom sib dhos, xws li "rub hlau" sib dhos feem ntau siv hauv kev kho mob hlwb, siv lub tshuab uas suav nrog USP femtosecond laser thiab ib qho ntawm cov kab ke sib xyaw tshiab suav nrog femtosecond thiab fiber lasers rau qhov yooj ywm tshaj plaws thiab Versatility.
Tau ntau xyoo, feem ntau cov laser micromachining tau ua tiav siv cov solid-state nanosecond lasers hu ua DPSS lasers. Txawm li cas los xij, qhov no tam sim no tau hloov pauv tag nrho ua tsaug rau kev tsim kho ntawm ob hom laser sib txawv kiag li, thiab yog li ntawd sib txuas. Chiv thawj tsim rau kev sib txuas lus, fiber lasers tau loj hlob mus rau hauv cov ntaub ntawv ua haujlwm lasers hauv ntau lub lag luam, feem ntau ntawm cov wavelengths ze-infrared. Cov laj thawj rau nws txoj kev vam meej nyob rau hauv nws cov qauv yooj yim thiab lub zog scalability ncaj qha. Qhov no ua rau cov lasers uas yog compact, txhim khu kev qha, thiab yooj yim rau kev koom ua ke rau hauv cov tshuab tshwj xeeb, thiab feem ntau muab tus nqi qis dua ntawm kev muaj dua li cov laser qub. Qhov tseem ceeb rau micromachining, lub teeb tso zis tuaj yeem tsom mus rau hauv qhov chaw me me, huv si ntawm ob peb microns hauv txoj kab uas hla, yog li lawv zoo tagnrho rau kev txiav siab siab, vuam thiab drilling. Lawv cov zis kuj tseem yooj ywm heev thiab tswj tau, nrog cov nqi pulse xws li ib qho txhaj tshuaj mus rau 170 kHz. Nrog rau lub zog scalable, qhov no txhawb nqa kev txiav ceev thiab drilling.
Txawm li cas los xij, qhov tsis zoo ntawm cov lasers fiber hauv micromachining yog kev ua cov yam ntxwv me me thiab / lossis cov khoom nyias nyias, cov khoom me me. Lub sijhawm ntev (piv txwv li, 50 µs) ua rau muaj qhov me me ntawm thaj chaw cuam tshuam los ntawm cua sov (HAZ) xws li cov khoom siv rov ua dua tshiab thiab qhov ntxhib me me ntawm ntug, uas yuav xav tau qee qhov kev ua tiav tom qab. Hmoov zoo, cov lasers tshiab dua - ultrashort pulse (USP) lasers nrog femtosecond output pulses - tshem tawm qhov teeb meem HAZ.
Nrog USP lasers, feem ntau ntawm cov cua sov ntxiv uas cuam tshuam nrog kev txiav lossis drilling txheej txheem raug nqa mus rau hauv cov khib nyiab uas raug tso tawm ua ntej nws muaj sijhawm los diffuse rau hauv cov khoom siv ib puag ncig. USP lasers nrog picosecond tso zis tau siv ntev hauv micromachining daim ntawv thov uas cuam tshuam nrog plastics, semiconductors, ceramics, thiab qee yam hlau (picoseconds = 10-12 vib nas this). Tab sis rau cov khoom siv hlau nrog cov ncej loj li tib neeg cov plaub hau, cov hlau lub thermal conductivity siab thiab me me txhais tau tias picosecond lasers tsis ib txwm muab cov txiaj ntsig zoo dua uas yuav ua pov thawj rau tus nqi nce ntxiv ntawm USP lasers ua ntej. Qhov no tam sim no tau hloov pauv nrog kev tshwm sim ntawm qib kev lag luam femtosecond lasers (femtosecond = 10-15 vib nas this). Ib qho piv txwv yog Coherent Inc.'s Monaco series ntawm lasers. Zoo li fiber lasers, lawv cov zis yog ze-infrared lub teeb, uas txhais tau tias lawv tuaj yeem txiav lossis tho txhua yam hlau siv hauv cov khoom siv kho mob, suav nrog stainless hlau, platinum, kub, magnesium, cobalt-chromium, titanium, thiab ntau dua, nrog rau cov hlau tsis yog. Thaum lub sijhawm ua ke ntawm lub sijhawm luv luv thiab Lub zog qis ntawm lub zog tiv thaiv kev puas tsuaj los ntawm cua sov (HAZ), qhov siab (MHz) rov ua dua qhov nrawm ua kom muaj kev nrawm nrawm rau ntau yam khoom siv kho mob muaj nqis.
Tau kawg, yuav luag tsis muaj leej twg hauv peb txoj kev lag luam tsuas xav tau ib lub laser xwb. Hloov chaw, lawv xav tau lub tshuab ua laser, thiab tam sim no muaj ntau lub tshuab tshwj xeeb uas tau tsim los rau kev txiav thiab tho qhov khoom siv kho mob. Ib qho piv txwv yog Coherent's StarCut Tube series, uas tuaj yeem siv nrog fiber lasers, femtosecond lasers, lossis ua ib qho hybrid version uas suav nrog ob hom laser.
Kev tshwj xeeb ntawm cov khoom siv kho mob txhais li cas? Feem ntau ntawm cov khoom siv no yog tsim tawm hauv cov pawg tsawg raws li kev tsim tshwj xeeb. Yog li ntawd, kev ywj pheej thiab kev yooj yim ntawm kev siv yog qhov tseem ceeb uas yuav tsum xav txog. Txawm hais tias ntau cov khoom siv yog tsim los ntawm billets, qee qhov khoom yuav tsum tau ua kom raug los ntawm cov billets tiaj tus; tib lub tshuab yuav tsum tswj ob qho tib si kom ua kom nws muaj nqis ntau tshaj plaws. Cov kev xav tau no feem ntau tau ntsib los ntawm kev muab ntau-axis CNC tswj (xyz thiab rotary) kev txav mus los thiab tus neeg siv-phooj ywg HMI rau kev yooj yim programming thiab kev tswj hwm. Hauv rooj plaub ntawm StarCut Tube, qhov kev xaiv tshiab ntawm cov raj thauj khoom module los nrog lub magazine thauj khoom sab (hu ua StarFeed) rau cov raj ntev txog 3 m thiab lub sorter rau cov khoom txiav, tso cai rau kev tsim khoom tag nrho.
Qhov kev hloov pauv ntawm cov txheej txheem ntawm cov tshuab no tau txhim kho ntxiv los ntawm kev txhawb nqa rau kev txiav ntub thiab qhuav thiab cov nozzles xa khoom yooj yim hloov kho rau cov txheej txheem xav tau roj pab. Kev daws teeb meem qhov chaw kuj tseem ceeb heev rau kev ua cov khoom me me, uas txhais tau tias kev ruaj khov thermomechanical tshem tawm cov teebmeem ntawm kev co uas feem ntau ntsib hauv cov khw muag khoom tshuab. Lub StarCut Tube ntau yam ua tau raws li qhov xav tau no los ntawm kev tsim tag nrho lub lawj txiav nrog ntau tus lej ntawm cov khoom granite.
NPX Medical yog ib lub tuam txhab tsim khoom tshiab uas muab kev tsim qauv, kev tsim kho thiab kev txiav laser rau cov tuam txhab tsim khoom siv kho mob. Lub tuam txhab tau tsim lub koob npe nrov hauv kev lag luam rau cov khoom zoo thiab kev teb tau sai, txhawb nqa ntau yam khoom siv suav nrog stents, implants, valve stents thiab cov raj xa khoom yooj ywm rau cov txheej txheem phais sib txawv, suav nrog kev phais mob neurovascular, cardiac, renal, spine, orthopedic, gynecological, thiab gastrointestinal. Nws lub tshuab txiav laser tseem ceeb yog StarCut Tube 2+2 nrog StarFiber 320FC nrog lub zog nruab nrab ntawm 200 watts. Mike Brenzel, ib tus ntawm NPX cov neeg tsim khoom, piav qhia tias "cov neeg tsim khoom coj ntau xyoo ntawm kev tsim khoom siv kho mob thiab kev tsim khoom - ntau dua 90 xyoo tag nrho", nrog rau kev paub dhau los nrog StarCut-zoo li cov tshuab siv fiber lasers. Ntau yam ntawm peb txoj haujlwm cuam tshuam nrog Nitinol txiav thiab peb twb paub lawm tias fiber lasers tuaj yeem muab qhov ceev thiab zoo uas peb xav tau. Rau cov khoom siv xws li cov raj tuab-phab ntsa thiab lub plawv valves, peb xav tau qhov ceev, thiab USP laser tej zaum yuav qeeb dhau rau peb cov kev xav tau. Ntxiv rau qhov kev txiav txim siab ntau lawm - peb tshwj xeeb hauv cov khoom me me - tsuas yog ntawm 5 thiab 150 daim - peb lub hom phiaj yog ua kom tiav cov khoom me me no hauv ob peb hnub xwb, suav nrog kev tsim qauv, kev sau ntawv, kev txiav, kev tsim, kev ua tiav tom qab thiab kev tshuaj xyuas, piv rau lub lis piam tom qab kev txiav txim rau cov tuam txhab loj dua. "Ntxiv rau kev hais txog qhov ceev, Brenzel tau hais txog kev ntseeg tau ntawm lub tshuab ua qhov zoo dua, tsis tas yuav hu xov tooj rau ib qho kev pabcuam dhau 18 lub hlis dhau los ntawm kev ua haujlwm ze-txuas ntxiv.
Daim Duab 2. NPX muaj ntau txoj kev xaiv tom qab ua tiav. Cov khoom siv qhia ntawm no yog T316 stainless hlau nrog 5 hli OD thiab 0.254 hli phab ntsa tuab. Sab laug yog txiav / microblasted thiab sab xis yog electropolished.
Ntxiv rau cov khoom nitinol, lub tuam txhab kuj siv cov hlau cobalt-chromium, tantalum alloys, titanium alloys thiab ntau hom hlau stainless kho mob. Jeff Hansen, Tus Thawj Coj Ua Haujlwm Laser, piav qhia tias: "Kev yooj ywm ntawm lub tshuab yog lwm yam khoom tseem ceeb, uas tso cai rau peb txhawb kev txiav ntau yam khoom siv, suav nrog lub raj thiab tiaj tus. Peb tuaj yeem tsom lub teeb mus rau qhov chaw 20-micron, uas muaj txiaj ntsig zoo rau ntau lub raj nyias nyias muaj txiaj ntsig zoo heev. Qee lub raj no tsuas yog 0.012 ″ ID, thiab qhov sib piv siab ntawm lub zog siab tshaj plaws rau lub zog nruab nrab ntawm cov lasers fiber tshiab tshaj plaws ua rau peb qhov kev txiav ceev thaum tseem muab qhov zoo ntawm ntug xav tau. Peb xav tau qhov ceev ntawm cov khoom loj dua nrog lub cheeb sab nraud txog li 1 nti. "
Ntxiv rau kev txiav kom raug thiab teb sai, NPX kuj tseem muaj ntau yam thev naus laus zis tom qab ua tiav, nrog rau cov kev pabcuam tsim qauv uas siv nws cov kev paub dhau los hauv kev lag luam. Cov txheej txheem no suav nrog electropolishing, sandblasting, pickling, laser welding, heat setting, forming, passivation, Af temperature testing, thiab kev sim qaug zog, tag nrho cov no yog qhov tseem ceeb rau Nitinol device fabrication. Siv post-processing los tswj ntug tiav, Brenzel hais tias, "feem ntau nyob ntawm seb peb puas tab tom tham txog kev siv high-fatigue lossis low-fatigue. Piv txwv li, ib feem high-fatigue zoo li lub plawv valve yuav khoov ib billion zaug dhau nws lub neej ua post-processing Ua ib kauj ruam, nws yog ib qho tseem ceeb uas yuav tsum siv sandblasting los ua kom lub vojvoog ntawm txhua ntug nce. Tab sis cov khoom qis-fatigue zoo li cov kab ke xa khoom lossis cov xov hlau qhia feem ntau tsis xav tau post-processing ntau. " Hais txog kev txawj tsim qauv, Brenzel piav qhia tias, tam sim no muaj ntau txog li Peb feem plaub ntawm cov neeg siv khoom kuj siv lawv cov kev pabcuam tsim qauv los siv NPX txoj kev pab thiab kev txawj ntse hauv kev tau txais kev pom zoo los ntawm FDA. Lub tuam txhab zoo heev ntawm kev hloov lub tswv yim "napkin sketch" mus rau hauv cov khoom hauv nws daim ntawv kawg hauv lub sijhawm luv luv.
Motion Dynamics (Fruitport, MI) yog ib lub tuam txhab tsim cov khoom siv me me, cov kauj kho mob thiab cov hlau sib dhos uas lawv lub hom phiaj yog daws cov teeb meem ntawm cov neeg siv khoom, txawm tias nyuaj npaum li cas los xij lossis zoo li tsis yooj yim sua, hauv lub sijhawm luv tshaj plaws. Hauv cov khoom siv kho mob, nws feem ntau hais txog cov khoom sib dhos nyuaj rau kev phais mob neurovascular, suav nrog kev tsim qauv, kev tsim khoom, thiab kev sib dhos ntawm cov hlau sib dhos zoo rau cov ntawv thov xws li cov khoom siv catheter uas tuaj yeem tsav tau, suav nrog cov khoom sib dhos "rub hlau".
Raws li tau hais ua ntej lawm, kev xaiv ntawm fiber lossis USP laser yog qhov teeb meem ntawm kev nyiam engineering nrog rau hom khoom siv thiab cov txheej txheem txhawb nqa. Chris Witham, Thawj Tswj Hwm ntawm Motion Dynamics, piav qhia tias: "Raws li tus qauv lag luam uas tsom mus rau cov khoom neurovascular, peb tuaj yeem xa cov txiaj ntsig sib txawv hauv kev tsim qauv, kev ua tiav thiab kev pabcuam. Peb tsuas yog siv laser txiav los tsim cov khoom peb siv hauv tsev. , los tsim cov khoom muaj nqis siab, "nyuaj" uas tau dhau los ua peb qhov tshwj xeeb thiab lub koob npe nrov; peb tsis muab laser txiav ua kev pabcuam cog lus. Peb tau pom tias feem ntau laser txiav peb ua tau zoo tshaj plaws nrog USP lasers, thiab tau ntau xyoo kuv tau siv StarCut Tube nrog ib qho ntawm cov lasers no. Vim muaj kev thov ntau rau peb cov khoom, peb muaj ob lub sijhawm 8 teev ib hnub, qee zaum txawm tias peb lub sijhawm, thiab xyoo 2019 peb xav tau lwm StarCut Tube los txhawb qhov kev loj hlob no. Tab sis lub sijhawm no, peb tau txiav txim siab mus nrog ib qho ntawm cov qauv tshiab hybrid ntawm femtosecond USP lasers thiab fiber lasers. Peb kuj tau ua ke nrog StarFeed loader / unloader yog li ntawd peb thiaj li ua tau qhov kev txiav tag nrho - tus neeg teb xov tooj tsuas yog muab lub raj tso rau hauv lub feeder thiab qhov kev pab cuam software rau cov khoom pib.
Daim Duab 3. Lub raj xa khoom uas ua los ntawm cov hlau tsis xeb no (qhia ib sab ntawm lub roj hmab rho tawm) tau raug txiav nrog Monaco femtosecond laser.
Witham ntxiv tias thaum lawv qee zaum siv lub tshuab rau kev txiav tiaj tus, ntau dua 95 feem pua ​​​​​​ntawm lawv lub sijhawm siv los tsim lossis hloov kho cov khoom cylindrical rau lawv cov catheter sib dhos, uas yog hypotubes, coils thiab spirals, suav nrog kev txiav cov lus qhia profiled thiab Txiav qhov. Cov khoom no thaum kawg siv rau hauv cov txheej txheem xws li kev kho aneurysm thiab kev tshem tawm thrombus. Qhov no yuav tsum tau siv cov laser cutters ntawm ntau yam hlau suav nrog stainless hlau, kub ntshiab, platinum thiab nitinol.
Daim Duab 4. Motion Dynamics kuj siv laser vuam ntau heev. Saum toj no, lub kauj tau raug vuam rau lub raj laser txiav.
Cov kev xaiv laser yog dab tsi? Witham piav qhia tias qhov zoo ntawm ntug thiab qhov tsawg kawg nkaus kerfs yog qhov tseem ceeb rau feem ntau ntawm lawv cov khoom, yog li lawv thawj zaug nyiam USP lasers. Tsis tas li ntawd, tsis muaj cov ntaub ntawv uas lub tuam txhab siv tuaj yeem txiav los ntawm ib qho ntawm cov lasers no, suav nrog cov khoom kub me me siv ua cov cim radiopaque hauv qee yam ntawm nws cov khoom. Tab sis nws ntxiv tias cov kev xaiv hybrid tshiab, suav nrog fiber lasers thiab USPs, muab rau lawv ntau dua kev ywj pheej hauv kev ua kom zoo dua qhov ceev / ntug zoo teeb meem. "Tsis muaj kev poob siab tias fiber optics tuaj yeem muab qhov ceev dua," nws hais. "Tab sis vim peb qhov kev tsom mus rau daim ntawv thov tshwj xeeb, qhov no feem ntau txhais tau tias qee hom kev ua tiav tom qab, xws li tshuaj lom neeg thiab ultrasonic ntxuav lossis electropolishing. Yog li muaj lub tshuab hybrid tso cai rau peb xaiv qhov txheej txheem tag nrho - USP ib leeg lossis fiber thiab tom qab ua tiav Kev Tuav - Qhov Zoo Tshaj Plaws rau txhua qhov khoom. Nws tso cai rau peb tshawb nrhiav qhov ua tau ntawm kev ua haujlwm hybrid ntawm tib qho khoom, tshwj xeeb tshaj yog qhov twg cov kab uas hla loj dua thiab phab ntsa tuab koom nrog: txawm tias txiav sai nrog fiber lasers, Tom qab ntawd siv femtosecond laser rau kev txiav zoo. Nws xav tias USP laser yuav tseem yog lawv qhov kev xaiv thawj zaug vim tias feem ntau ntawm lawv cov laser txiav cuam tshuam nrog phab ntsa thicknesses ntawm 4 thiab 6 thous, txawm hais tias lawv ntsib phab ntsa thicknesses xws li 1-20 thous. Cov kav hlau stainless ntawm thous.
Xaus lus, kev txiav laser thiab kev khawb yog cov txheej txheem tseem ceeb hauv kev tsim ntau yam khoom siv kho mob. Niaj hnub no, ua tsaug rau kev nce qib hauv cov thev naus laus zis laser tseem ceeb thiab cov tshuab zoo tshaj plaws uas tau teeb tsa rau cov kev xav tau tshwj xeeb ntawm kev lag luam, cov txheej txheem no yooj yim dua los siv thiab xa cov txiaj ntsig zoo dua li yav dhau los.