Lazeri ya Femtosecond ifasha iterambere ryihuse ryubuvuzi bwa stent

Mu myaka yashize, gutunganya laser byakoreshejwe cyane mugukora ibikoresho byubuvuzi, nkibisobanuroibikoresho byo gukata laser, ibikoresho byo gusudira kwa lazeri, ibikoresho byo gucukura lazeri, ibikoresho byo gushyiramo laser, nibindi.

Lazeri ya fibre ifite umwanya wiganje mu nganda zikora ibikoresho byubuvuzi bitewe nigiciro gito, imbaraga nini nibindi byiza.Ibikoresho bya Laser nka picosekond na femtosekond bifite ibyiza byinshi mubijyanye no kugabanya ubuziranenge, ariko umugabane wabo ku isoko wabaye muto mugihe kirekire.

Mu myaka yashize, hamwe nibisabwa byiyongera kubikoresho byubuvuzi byuzuye kugirango bigabanye ubuziranenge, ubushakashatsi bwibanze bwibikoresho niterambere ryibikoresho byubuvuzi bya laser byihuta, kandi lazeri ultrafast nka femtoseconds izahinduka lazeri yemewe mubikoresho byubuvuzi bikora ibintu, hamwe na lazeri. bahora binjira mubice bitandukanye byo kuvura.

Mubikoresho byubuvuzi bikozwe hifashishijwe laseri ya femtosekond, stent neurologue na cardiovascular stent nibisanzwe.Lazeri ya femtosekond ituma habaho gutunganya neza ibicuruzwa bitavanze, micron-nini ya stent kubikoresho byubuvuzi, ibyo bikaba ari ngombwa gukumira indwara ziterwa n’umubiri / kwangwa iyo byinjijwe mu mubiri w’umuntu.Ibikoresho byinshi byubuvuzi bikozwe muri nikel-titanium alloy, kera gukoresha tekinoroji yubukanishi mugutunganya iyi nikel-titanium ntabwo byoroshye, laser femtosekond yabaye uburyo bwiza.

Igitekerezo cya "intervention itatewe" ni inzira yingenzi mugutezimbere udushya twimikorere ya coronary interventional therapy.Umutima wumutima kugeza ubu urashobora kugabanywamo ibyiciro bine: kwaguka kwa ballon yuzuye, ibyuma byambaye ubusa, ibiyobyabwenge byangiza ibiyobyabwenge, hamwe na biodegradable stent.

Bitandukanye numutima wabanje, stent biodegradable stent ni scafolds ikozwe mubikoresho bya polymer byangirika (nka aside polylactique) bishobora kubora no kwinjizwa numubiri wumuntu mugihe runaka.Iyo imiyoboro yamaraso ivuguruye, stent igabanuka mumazi na dioxyde de carbone mumubiri, ugereranije nicyuma gakondo - hamwe nibiyobyabwenge.Ibimenyetso biriho byubushakashatsi byerekana ko imikorere ya stent biodegradable stent ari ntangarugero, ishobora gukuraho ingaruka ziterwa na stent yambaye ubusa ku kugarura imikorere yimitsi no kugabanya ibibazo byigihe kirekire nyuma ya PCI.

Hamwe nibyiza byihariye, ibikoresho bya stent byangirika bizahinduka inzira nyamukuru mugutezimbere tekinoloji mpuzamahanga yumutima.Mugutunganya ibi bikoresho bya polymer nibindi bikoresho bitari ubutare, niba fibre laser itunganijwe, ibikoresho birashobora gushyuha kandi bigahindura imiterere yimiti, ishobora kubyara ubumara bwibinyabuzima.Niba ushaka kugabanya izo ngaruka zubushyuhe no kwemeza ubwiza bwingaruka zo gutunganya, guhitamo kwambere nibikoresho bya femtosekond.

Imwe mu nyungu zingenzi zo gukoresha pultosekond (10 ^ -15s) ugereranije na nanosekond cyangwa na picosekond pulses ni uko igihe cyo guhura hagati yigitereko nigikorwa cyakazi kigabanuka cyane bishoboka, bikagabanya akarere katewe nubushyuhe kumurimo wakazi bityo bikagabanuka. kugabanya ingaruka mbi ziterwa no gushyuha cyane.Kubikoresho bimwe byubuvuzi, harimo na stent, ibi nabyo nibyingenzi mugutezimbere biocompatibilité yibikoresho byatewe.

Lazeri ya Femtosekond irashobora gutunganya ibicuruzwa neza.Ubuvuzi bwa koronari yubuvuzi busanzwe buri hagati ya diametre kuva kuri 2 kugeza 5mm no muburebure kuva 13 kugeza 33mm.Igikoresho cya laser femtosekond kirasabwa niba ushaka ibisobanuro byiza bya stent no kugabanya bigabanya ibyago byo guhinduka kwa biopolymer cyangwa okiside yicyuma.Urebye uburyo bwose bwo gukora stent, ikindi cyiza cya laser femtosekond ni ukugabanya ibikenewe nyuma yo gutunganywa nyuma yo guca stent.

Gukata laser ya Femtosecond vs Fibre laser yo gukata

Iterambere rya vuba muri tekinoroji ya femtosekond yinjije imbaraga nyinshi mugutunganya ibikoresho byubuvuzi neza, bikuraho ingaruka zumuriro mugihe hagabanijwe nyuma yo gutunganywa.