Sanadihii la soo dhaafay, farsamaynta laysarka ayaa si isa soo taraysa loogu isticmaalay wax soo saarka qalabka caafimaadka, sida saxnaantaqalabka goynta laserQalabka alxanka laysarka caafimaadka, qalabka qodista laysarka, qalabka calaamadaynta laysarka, iwm. Qalabkan waxaa loo isticmaali karaa in lagu farsameeyo stent-yada caafimaadka, stents valve wadnaha, Qaybaha qalooca endoscopic iyo dhammaan noocyada qalabka qalliinka.
Laysarka fiber-ka ayaa ku jira booska ugu sarreeya warshadaha wax soo saarka qalabka caafimaadka sababtoo ah qiime jaban, awood la miisaami karo iyo faa'iidooyin kale.Qalabka Laser-ka ah sida picosecond iyo femtosecond waxay leeyihiin faa'iidooyin aad u fiican marka la eego tayada goynta, laakiin saamigooda suuqyadu waxay ahaayeen kuwo yar muddo dheer.
Sanadihii la soo dhaafay, iyada oo la kordhinayo shuruudaha qalabka caafimaadka saxda ah ee tayada goynta, cilmi baarista aaladda asaasiga ah iyo horumarinta qalabka caafimaadka laysarka ayaa la dardargeliyay, iyo laser-yada ultrafast sida femtoseconds waxay noqon doonaan laser-ka la doorbido ee soo saarista qalabka caafimaadka xaaladaha codsiga, iyo laysarkaas waxay si joogto ah u galaan qaybaha kala duwan ee daaweynta.
Qalabyada caafimaad ee lagu farsameeyo iyadoo la isticmaalayo laysarka femtosecond, neerfaha iyo stents wadnaha ayaa ah kuwa ugu badan.Laysarka femtosecond wuxuu awood u siinaya farsamaynta saxda ah ee alaabada stent-ka ee aan burr-la'aanta lahayn, ee micron-stent ee alaabada aaladaha caafimaadka, taas oo muhiim u ah ka hortagga falcelinta/diidmada difaaca marka la geliyo jidhka bini'aadamka.Qalab badan oo caafimaad ayaa laga sameeyay nikkel-titanium alloy, isticmaalka hore ee tignoolajiyada farsamada si loo farsameeyo daawaynta nikkel-titanium ma fududa, laser femtosecond wuxuu noqday hab wax ku ool ah.
Fikradda "faragelin la'aan la'aanteed" waa isbeddel muhiim ah oo ku saabsan horumarinta hal-abuurka leh ee daaweynta dhexgalka wadnaha.Astaamaha wadnaha ilaa hadda waxa loo qaybin karaa afar marxaladood: baloon balaadhinta saafiga ah, biraha birta ah ee qaawan, stent-daroogo, iyo stents biodegradable.
Si ka duwan kuwa hore ee wadnaha, stents biodegradable waa suufyo ka samaysan walxo polymer ah oo la dumin karo (sida polylactic acid) kaas oo la dumin karo oo uu nuugi karo jidhka bini'aadamka gudaha wakhti go'an.Marka xididdada dhiigga dib loo habeeyo, stent-ku wuxuu si toos ah hoos ugu dhigaa biyaha iyo kaarboon laba ogsaydh ee jirka, marka la barbar dhigo birta dhaqameed - iyo stent-daroogooyinka.Caddaynta cilmi-baarista ee hadda jirta waxay muujineysaa in waxtarka stent biodegradable uu yahay mid la hubo, kaas oo baabi'in kara saameynta haraaga stent ee qaawan ee dib u soo kabashada shaqada xididdada iyo yareynta dhacdooyinka dhacdooyinka xun ee muddada dheer ka dib PCI.
Faa'iidooyinkeeda gaarka ah, qalabka stent-ka ee la dumin karo ayaa si tartiib tartiib ah u noqon doona isbeddelka guud ee horumarinta farsamada wadnaha wadnaha ee caalamiga ah.Marka la farsameeyo maaddadan polymer-ka ah iyo walxaha kale ee aan biraha ahayn, haddii farsamaynta laser fiber-ka, maadada waa la kululayn karaa oo beddeli kartaa isku-dhafka kiimikada, taas oo soo saari karta sunta noolaha.Haddii aad rabto in aad hoos u dhigto kuwan saamaynta kulaylka iyo in la hubiyo tayada saamaynta processing, doorashada kowaad waa qalabka laser femtosecond.
Mid ka mid ah faa'iidooyinka ugu muhiimsan ee isticmaalka femtosecond (10 ^-15s) garaaca wadnaha marka la barbar dhigo nanosecond ama xitaa picosecond garaaca wadnaha waa in waqtiga xiriirka u dhexeeya beam iyo workpiece la dhimay inta ugu badan ee suurtogalka ah, yaraynta aagga kulaylka saameeya workpiece iyo sidaas yaraynta saamaynta xun ee ay keento kuleyl badan.Qaar ka mid ah aaladaha caafimaadka, oo ay ku jiraan stent, tani waxay sidoo kale muhiim u tahay hagaajinta laqabsiga noole ee walxaha la geliyo.
Laysarka Femtosecond waxay ku farsamayn karaan alaabooyinka si sax ah oo sarreeya.Astaamaha wadnaha ee caafimaadku waxay caadi ahaan u dhexeeyaan dhexroor 2 ilaa 5mm iyo dherer ahaan 13 ilaa 33mm.Qalab leysarka femtosecond ayaa lagula talinayaa haddii aad rabto tafaasiisha stent tayo sare leh iyo gooyn yaraynaysa khatarta isbeddellada bioopolymer ama oksaydhka birta.Marka loo eego dhammaan habka wax soo saarka stent, faa'iidada kale ee laser-ka femtosecond waa in la yareeyo baahiyaha ka-hortagga ka dib marka la gooyo stent.
Goynta laser Femtosecond vs Fiber laser goynta saamaynta
Horumarkii ugu dambeeyay ee tignoolajiyada femtosecond laser waxay dureen awoodo waaweyn habayn sax ah oo qalab caafimaad ah, baabi'inta saamaynta kulaylka iyada oo la yaraynayo habaynta ka dib.
Waqtiga boostada: Jul-25-2023