EPTFE muaj cov qauv tshwj xeeb thiab kev ua tau zoo, biocompatibility zoo, thiab tsim nyog rau kev kho lub cev thiab kev phais.Thiab nrog kev nce qib ntawm cov tshuaj, qhov muaj koob meej ntawm ntau yam kev ua haujlwm nyuaj, thiab kev txhim kho ntawm tib neeg txoj kev ua neej, qhov kev thov rau EPTFE cov khoom yog nce.
Tom qab sib tov, sib tsoo, molding, calendering, ziab, ncab, sintering, cov khoom dawb, mos, elastic EPTFE yuav raug tsim.
EPTFE muaj cov qauv tshwj xeeb thiab kev ua tau zoo, biocompatibility zoo, thiab tsim nyog rau kev kho lub cev thiab kev phais.Thiab nrog kev nce qib ntawm cov tshuaj, qhov muaj koob meej ntawm ntau yam kev ua haujlwm nyuaj, thiab kev txhim kho ntawm tib neeg txoj kev ua neej, qhov kev thov rau EPTFE cov khoom yog nce.
Tom qab sib tov, sib tsoo, molding, calendering, ziab, ncab, sintering, cov khoom dawb, mos, elastic EPTFE yuav raug tsim.
1.Cov polymer khoom ntawm PTFE hauv kev kho mob tuaj yeem muab faib ua 3 pawg:
1.1.Cov khoom uas ncaj qha nkag mus rau tib neeg lub cev (ntev lossis ib ntus)
Polymer cov khoom uas nyob mus ib txhis nyob rau hauv lub cev yog implants (artificial substitutes rau cov ntaub so ntswg thiab kabmob).Kev siv ib ntus suav nrog cov catheters, cov raj xa dej, lub mloog pob ntseg, cov ntxaij lim dej, cov khoom siv cua, thiab lwm yam. Lawv yog siv rau kev thauj mus los ntawm cov khoom siv thiab cov pa roj, cov khoom lim tawm, thiab lwm yam.
1.2.Cov khoom siv rau kev siv sab nraud
PTFE polymers cov khoom xws li plasticity, lightness, firmness, nruj thiab elasticity, stability rau corrosive media, hluav taws xob rwb thaiv tsev, thiab lwm yam, yog ib qho tseem ceeb heev.Cov khoom no muaj xws li hnab looj tes, tourniquets, limb kho cov cuab yeej, sab nraud sheaths rau ntau yam khoom siv kuaj mob, thiab lwm yam.
1.3.Cov khoom siv ua haujlwm ntawm biochemical tsom xam thiab biochemical synthesis cov cuab yeej siv rau kev cog qoob loo, rov tsim dua tshiab thiab nthuav tawm cov hlwb, cov ntaub so ntswg, thiab lwm yam.
2. Kev siv cov khoom PTFE hauv kev kho mob
2.1 Daim ntawv thov nthuav dav PTFE thaj hauv kev kho cov kab mob hauv plab sab nraud yog cov kab mob phais feem ntau, thiab feem ntau yog cov kab mob inguinal hernia.Kev phais mob yog ib qho kev kho mob uas lees paub.PTFE yog cov tshuaj fluoride ua tiav, thiab tshwj xeeb tshaj yog kho tau nthuav dav PTFE fiber ntau tuaj yeem nthuav tawm cov qauv ntxeem tau thiab tuaj yeem ua rau cov khoom muag muag, khoov tau, tsis muaj abrasive.Qhov zoo tshaj plaws ntawm qhov nthuav PTFE thaj yog nws qhov yooj yooj yim.Cov rog nyob rau hauv tag nrho cov kev taw qhia yog nyob rau hauv ib tug balanced lub xeev.Nws tuaj yeem txiav thiab npog raws li xav tau.Nws qhia tau hais tias fiber ntau txuas ntxiv thiab qhov tshwj xeeb ntxeem tau microstructure.Cov hlwb tuaj yeem nkag mus rau hauv nws.Nws muaj cov ntaub so ntswg zoo sib xws, cov khoom siv kho tshuab zoo tshaj, lub teeb tom qab lub qhov txhab mob, tsim cov caws pliav me me, thiab kev nplij siab zoo.Nws yog ib qho khoom siv zoo tshaj plaws rau kev kho mob tsis muaj kev ntxhov siab.
2.2.Kev kho mob ntawm EPTFE hauv rhinoplasty
2.2.1.Hauv rhinoplasty
Rau qhov deformity ntawm lub qhov ntswg, kev hloov cov ntaub so ntswg feem ntau yuav tsum tau kho qhov tsis xws luag.Cov pob txha mos autologous tseem yog cov khoom siv hloov pauv zoo tshaj plaws, tab sis muaj qhov tsis txaus xws li qhov nyuaj ntawm kev tau txais cov ntaub ntawv, kev puas tsuaj rau thaj chaw pub dawb, thiab qhov tsis tuaj yeem nqus cov khoom siv graft.Cov ntaub ntawv Allogeneic muaj cov tshuaj tiv thaiv tiv thaiv kab mob thiab tsis yooj yim rau khaws cia, yog li nws nyuaj rau kev siv dav hauv tsev kho mob.Yog li ntawd, tib neeg niaj hnub tab tom nrhiav rau cov khoom siv hloov pauv hloov pauv zoo tagnrho.Nyob rau hauv lub tsev rhinoplasty, ntau cov khoom siv graft yog siv, nrog rau silicone roj hmab thiab hydroxyapatite.
2.2.2.Artificial graft khoom
Qhov kom zoo dua ntawm EPTFE raws li cov khoom siv dag zog yog tias nws muaj cov ntaub so ntswg zoo sib xws, thiab tib lub sijhawm muaj cov yam ntxwv ntawm kev tuaj yeem nres hauv cov ntaub so ntswg thiab yooj yim tshem tawm.EPTFE muaj cov khoom tshwj xeeb physicochemical.Nws cov micropores yog 30μ ntawm qhov nruab nrab, uas ua rau cov ntaub so ntswg endogenous, uas ua rau cov implant nres thiab tau txais los ntawm lub cev tiv thaiv kab mob.Vim tias cov ntaub so ntswg tsis endogenous, nws tsis yooj yim rau tshem tawm cov graft.
2.2.3.EPTFE non-reinforced thaj
Vim nws txoj kev hloov tau zoo tuaj yeem siv los kho cov ntaub so ntswg hauv zos rau kev nyuaj siab ntawm lub nraub qaum lossis lub qhov ntswg.Lub zog ntxiv thiab qhov zoo li lub nraub qaum ntawm lub qhov ntswg muaj ob qho tib si yooj yooj yim thiab ib qho nyuaj.Yog li ntawd, nws yuav siv tau raws li ib tug graft nrog ib tug nce dorsal qhov ntswg.
2.2.4.Hauv qhov ntswg qhov ntswg plasty
Nasal septal pob txha mos yeej ib txwm raug suav hais tias yog ib qho zoo tagnrho autologous graft khoom.Cov pob txha mos septal yog ncaj, elastic, thiab muaj qee lub zog, tab sis qhov tsis zoo yog tias cov ntaub so ntswg tau raug txwv.Ntawm cov khoom siv dag siv dag siv dag zog, hydroxyapatite tsis tuaj yeem siv rau qhov ntswg qhov ntswg.Silicone roj hmab muaj qhov paug tawm ntawm qhov ntswg qhov ntswg, tshwj xeeb tshaj yog kev raug mob, thiab tsis txaus ntawm daim tawv nqaij thiab cov ntaub so ntswg yuav ua rau kom muaj peev xwm tawm.Kev ntxhib los mos ntawm silicone roj hmab yog ib qho nyuaj heev.Yog tias lub zog txhawb nqa ntawm lub qhov ntswg loj heev, nws yuav ua rau ischemia ntawm daim tawv nqaij ntawm qhov ntswg.Kev txhawb nqa mus ntev yuav ua rau cov tawv nqaij hauv zos nyias lossis txawm tias rupture thiab cov prosthesis raug tso tawm.Lub zog ntxiv ntawm EPTFE yog qhov nyuaj tshaj qhov ntswg pob txha mos tab sis softer dua silicone.Yog li ntawd, lub zog ntxiv ntawm EPTFE tuaj yeem siv los ua kev txhawb nqa rau lub hau ntawm lub qhov ntswg thiab cov kab me ntawm lub qhov ntswg, tab sis nws tsis muaj elasticity yog nws qhov tsis muaj peev xwm.Piv nrog cov roj hmab silicone, EPTFE muaj cov yam ntxwv ntawm kev tso cov ntaub so ntswg endogenous, kom tsis txhob muaj ischemia thiab rupture ntawm daim tawv nqaij ntawm qhov chaw txhawb, yog li EPTFE yog lub qhov ntswg zoo tsim cov khoom.
2.2.5.Hauv qhov ntswg qhov ntswg plasty
Lub sculpting ntawm lub prosthesis yog tus yuam sij rau kev phais plasty.Nws tau raug tshaj tawm tias cov prosthesis tau hloov mus rau hauv lub kaus zoo thaum lub qhov ntswg shaping.Peb qhov kev paub dhau los yog tias cov pob qij txha tau muab tso rau hauv lub me me L-shaped caj npab thiab thinned nrog vascular forceps, uas yuav muab lub caj npab luv txaus kom ua tiav qhov kev txhawb nqa thiab pob ntawm lub qhov ntswg.
2.2.6 Artificial hlab ntsha
Tam sim no, cov khoom no tsuas yog siv rau femoral artery pseudoaneurysm vascular transplantation;aortic constriction segment resection (los yog kho) kev hloov ntshav hlab ntsha;bridging khoom rau portal hypertension shunt;bridging ntawm superior thiab inferior vena cava nrog txoj cai atrium;plab hnyuv system Cov hlab ntsha yog txuas nrog txoj cai atrium;hemodialysis, thiab lwm yam. Ntau tshaj 100 daim ntawv thov kev kho mob tau txais txiaj ntsig zoo.Kev siv sijhawm ntev tshaj plaws tau mus txog ntau dua 9 xyoo.
2.2.7 Artificial trachea
Nws yog siv rau cov neeg mob uas muaj qhov loj ntawm cov pob txha pob txha tsis xws luag, tracheal vau, thiab ua tsis taus pa ntawm lumen tshwm sim los ntawm kev ua tsov rog raug mob, raug mob, thiab phais mob qog noj ntshav.tus txiv neej ntawm.Tom qab 10 qhov xwm txheej ntawm kev kho mob hauv Changchun Tsev Kho Mob ntawm Tub Rog Tub Rog thiab ua raws li 10 xyoo, qhov ciaj sia taus yog 100%.
2.2.8.Lwm daim ntawv thov
Tom qab lub ntsws resection, cov khoom siv dag siv tau los tshem tawm cov kab noj hniav seem, thiab EPTFE yog cov khoom ntim zoo tshaj plaws nyob rau theem no.EPTFE thaj thiab polypropylene thaj muaj kev nyab xeeb thiab siv tau rau inguinal hernia implantation nyob rau hauv cov neeg laus, nrog tsawg cov teeb meem thiab qis dua tus nqi dua li ib txwm implantation.Ntawm lawv, EPTFE thaj yog zoo dua li polypropylene thaj Cov ntsiav tshuaj zoo dua.Cov tshuaj tiv thaiv inflammatory thiab txawv teb chaws lub cev tshwm sim los ntawm EPTFE yog me me, thiab tsis muaj kev phiv tshwm sim nyob rau ntawm qhov chaw ntawm lub qhov txhab, uas yuav siv tau raws li ib tug ntaub npog qhov txhab.
Post lub sij hawm: Jun-21-2020