Mumakore achangopfuura, laser processing yave ichiwedzera kushandiswa mukugadzira michina yekurapa, senge chaiyoLaser yekucheka michina, midziyo yekurapa laser welding, laser drilling equipment, laser marking equipment, etc. Midziyo iyi inogona kushandiswa kugadzira stents dzekurapa, heart valve stents, endoscopic Bending Sections uye marudzi ese ezviridzwa zvekuvhiya.
Fiber lasers inogara pachinzvimbo chepamusoro muindasitiri yekugadzira michina yekurapa nekuda kwemutengo wakaderera, simba rinowedzera uye zvimwe zvakanakira.Laser zvishandiso senge picosecond uye femtosecond zvine mabhenefiti makuru maererano nekucheka mhando, asi musika wavo wemusika wanga uri mudiki kwenguva yakareba.
Mumakore achangopfuura, nekuwedzera kuri kuita kwehunyanzvi hwekurapa michina yekucheka mhando, iyo yakakosha mudziyo wekutsvagisa uye kuvandudzwa kwemidziyo yekurapa laser inokwidziridzwa, uye ultrafast lasers senge femtoseconds inova iyo inosarudzika laser mumichina yekurapa yekugadzira maapplication mamiriro, uye aya lasers. dziri kugara dzichipinda munzvimbo dzakasiyana-siyana dzokurapa.
Pamidziyo yekurapa inogadzirwa uchishandisa femtosecond lasers, neurological uye cardiovascular stents ndiyo yakajairika.Iyo femtosecond laser inogonesa chaiyo machining ezvisina burrless, micron-scale stent zvigadzirwa pane zvekurapa mudziyo zvigadzirwa, izvo zvakakosha kudzivirira maitiro edziviriro / kuramba kana akaiswa mumuviri wemunhu.Mazhinji stents ekurapa anogadzirwa ne nickel-titanium alloy, iyo yapfuura kushandiswa kwemakanika tekinoroji kugadzirisa iyi nickel-titanium alloy haisi nyore, femtosecond laser yave nzira inoshanda.
Pfungwa ye "kupindira pasina kuiswa" inzira inokosha mukuvandudzwa kwehutano hwekoronary interventional therapy.Mwoyo stents kusvika parizvino anogona kukamurwa kuita nhanho ina: pure balloon dilation, isina simbi stents, drug-eluting stents, uye biodegradable stents.
Kusiyana neyakapfuura moyo stents, biodegradable stents zvikwambo zvakagadzirwa nezvinhu zvinoshatisa zvepolymer (senge polylactic acid) inogona kuora uye kutorwa nemuviri wemunhu mukati meimwe nguva yenguva.Kana tsinga dzeropa dzichigadziridzwa, stent inodzikira yakananga mumvura uye kabhoni dhaokisaidi mumuviri, zvichienzaniswa neyechinyakare simbi - uye zvinodhaka-yakavharwa stents.Uchapupu hwekutsvakurudza huripo hunoratidza kuti kushanda kwezvinyorwa zvinogadziriswa ndezvechokwadi, izvo zvinogona kubvisa kukanganiswa kwezvakasara zvisingabatsiri pakugadzirisa basa revascular uye kuderedza chiitiko chenguva refu yezviitiko zvakashata mushure mePCI.
Nezvayo zvakasarudzika mabhenefiti, zvinoshatisa stent zvinhu zvichave zvishoma nezvishoma zvinove mafambiro ekutanga mukuvandudza kwepasi rose moyo stent tekinoroji.Mukugadzirisa kweiyi polymer zvinhu uye zvimwe zvisiri zvesimbi, kana iyo fiber laser processing, zvinhu zvinogona kupisa uye kushandura kemikari, iyo inogona kuburitsa biological toxicity.Kana iwe uchida kudzikisa izvi zvinopisa zvinokonzeresa uye kuve nechokwadi chemhando yekugadziriswa, sarudzo yekutanga ndeye femtosecond laser michina.
Imwe yemabhenefiti makuru ekushandisa femtosecond (10 ^ -15s) pulses inofananidzwa nanosecond kana kunyange picosecond pulses ndeyekuti nguva yekubatana pakati pedanda neworkpiece inodzikiswa zvakanyanya sezvinobvira, kuderedza kupisa kunokanganisa nzvimbo pane workpiece uye nekudaro. kuderedza migumisiro yakaipa inokonzerwa nekupisa kwakanyanya.Kune mamwe maturusi ekurapa, anosanganisira stents, izvi zvakakoshawo mukuvandudza biocompatibility yemidziyo yekuisa.
Femtosecond lasers inogona kugadzirisa zvigadzirwa nehupamhi hwepamusoro.Medical coronary stents anowanzo dhayamita kubva 2 kusvika 5mm uye pakureba kubva 13 kusvika 33mm.Femtosecond laser mudziyo unokurudzirwa kana iwe uchida zvemhando yepamusoro stent ruzivo uye kucheka kunoderedza njodzi yekuchinja kwebiopolymer kana simbi oxidation.Kubva pamaonero eiyo yese stent yekugadzira maitiro, imwe mukana weiyo femtosecond laser ndeyekudzikisa iyo post-yekugadzirisa zvinodiwa mushure mekucheka stent.
Femtosecond laser yekucheka vs Fiber laser yekucheka maitiro
Kufambira mberi munguva pfupi yapfuura mufemtosecond laser tekinoroji kwakapinza hukuru hukuru mukurongeka kwechigadzirwa chekurapa, kubvisa mhedzisiro yekupisa uku uchidzikisa post-kugadzirisa.
Nguva yekutumira: Jul-25-2023