, Polyocefins: xaiv sib npaug ntawm tus nqi thiab kev ua tau zoo
1. Polyethylene (PE)
Cov yam ntxwv kev ua tau zoo: PE yog ib qho ntawm feem ntau cov ntaub ntawv siv hauv kev kho mob tshav, acid thiab alkali corrosity, thiab zoo biocompatibility. Raws li kev ceev sib txawv, nws tuaj yeem faib ua tsawg- ntom polyethylene (LDPE) thiab siab} qhov siab polyethylene (HDPE):
LDPE: Nrog rau koj cov khoom siv tau yooj yim, xws li siv lub hnab kho mob (xws li hnab ntshav) thiab muab cov koob txhaj tshuaj
HDPE: Nrog lub zog dua lub zog, nws yog qhov haum rau kev tsim cov khoom ntev xws li cov khoom siv dag zog ua kom zoo nkauj xws li kev phais cov cuab yeej.
Cov ntaub ntawv ib rooj plaub: Hdpe khoom siv dag zog ua ke protthesis tsim los ntawm ib qho kev tsim kho ib qho ua tiav cov qauv nkhaus uas los ntawm kev txhaj tshuaj. Nws cov kev coj tawm tsam yog ze rau ntawm cov ntaub ntawv hlau, thiab nws qhov hnyav yog txo los ntawm 60%, txo qis lub nra rau lub nra rau cov neeg mob.
2. Polypropylene (PP)
Cov yam ntxwv ua tau: PP muaj cov tseem ceeb ntawm cov kev kub siab tiv taus kub thiab qis ntom ntom ntawm 171 degree. Nws tuaj yeem tiv thaiv ntau tshaj 100 high {{3} h siab siab txoj kev ua kom tsis muaj menyuam tsis muaj menyuam yaus uas tsis muaj deformation. Nws lub inertness ua nws tsuas yog polyolefas cov khoom uas tuaj yeem ua kom tsis muaj teeb meem los ntawm GAMMA Rays.
Daim Ntawv Thov:
Consumables: Cov Khoom Siv Txom Nyem Barrel, Txoj kev lis ntshav teeb tsa cov kev tswj hwm ntws;
Cov Khoom Tiv Thaiv: Kev phais ntsej muag meltbler dej, phais gondn;
Txheej txheem sib xyaw ua ke: Hloov kho PP yog siv los ua cov suture
Technological tog: Ib qho kev lag luam muaj zog tau nce qhov cuam tshuam tsis kam ntawm PP los ntawm peb zaug los ntawm kev tsim khoom Reusable Longs thiab txo tib tus nqi los ntawm 45%.
2, Engineering plastics: kev daws teeb meem rau high-} kev xav tau
1. Polycarbonate (PC)
Cov yam ntxwv ua tau: PC tau paub rau nws lub siab hloov (cuam tshuam rau 90%), thiab kub ua hauj lwm (Vicat muag muag taw tes taw tes 40 degree). Nws cov biocompatibility sib ntsib Iso 10993 tus qauv thiab tuaj yeem ua kom tsis muaj menyuam yaus los ntawm Chav, gamma hluav taws xob, thiab ethylene oxide (EO) ntau yam kom tsis muaj menyuam.
Core Daim Ntawv Thov:
Cheebtsam kho qhov muag: Kev soj ntsuam lub qhov rai ntawm cov ntshav ntawm cov ntshav, tsim kom pom cov iav;
Kev phais cov cuab yeej: Cov Khoom Taw Qhia Orthopedic, Khoom Siv Orthodontic;
Connectors: Txoj kev lis ntshav lub hnab dosing txuas ntxiv, ventilator tub kev sib txuas.
Kev xyaum tshiab: ib lub pc raws li cov khoom tsim los ntawm qee qhov kev lag luam tau nce ntxiv cov iav kev tsim kho kom zoo nkauj, txuas ntxiv rau kev hloov kho cov iav tsawg tsawg, hloov kho cov duab ua kom zoo dua qub.
2. Polyamide (PA / nylon)
Cov yam ntxwv ua tau: PA muaj lub zog siab (tensile muaj zog 70 {}} 100Mpa), hnav tsis kam, thiab tus kheej-lubricating cov yam ntxwv zoo li nws cov tseem ceeb. Kev ua tau zoo tuaj yeem txhim kho ntxiv los ntawm kev hloov kho:
PA6: Kev nyuaj heev, haum rau kev tsim khoom tuaj sib kis xws li gears thiab pulleys;
PA66: Zoo dua Kub tsis kam (melting point 265 kawm qib siab), feem ntau siv nyob rau hauv high- kub tsis muaj kuab lom;
Txhim Kho PA: Tom qab ntxiv 30% fiber ntau, lub thermal deformation kub yog nce rau 250 degree, haum rau kev tsim kho lub ntsiab lus.
Cov ntaub ntawv raug: Ib qho kev nkag mus siv pa66 tsim luam laparoscopic phais, uas ua tiav 0.1mm precision tswj los ntawm kev txhaj tshuaj molding. Nws cov neeg qaug zog yog 5 zaug siab dua li ntawm cov hlau, thiab qhov hnyav ntawm ib qho yog txo los ntawm 70%, txo qis cov haujlwm ntawm cov kws kho mob.
3, tshwj xeeb engineering plastics: tawg nyob rau hauv ib puag ncig huab
1. Polyether ether Ketone (Peek)
Cov yam ntxwv ua tau: Peek yog lub npe hu ua "yas kub", nrog kev txuas ntxiv siv ntawm 26000 zaus uas muaj cov pob txha uas tib neeg (3-4gpa).
Cov ntawv thov siab:
Kev ntsuas cov khoom: cov pob txha kab mob pob tw, pob txha taub hau kho phaj;
Tsawg kawg nkaus instration cov cuab yeej: catheter meem, siab - zaus phais cov cuab yeej;
Duab Sib Xws: MRI tau muab kev phais kev phais ua kom phais.
Technologity Tog: Cov fiber ntau cov khoom siv Peek Composite tau tsim los ntawm qee cov lag luam yog siv los tsim cov khoom siv prostheses los ntawm kev txhaj tshuaj molding. Nws cov coj tsis kam yog 10 zaug siab tshaj li qub UHMWPE, thiab nws cov kev pabcuam lub neej yog txuas ntxiv rau ntau tshaj 20 xyoo.
2. Polyphenylsulfone (PPSU)
Cov yam ntxwv ua tau: PPSu ua ke cov pob tshab ntawm peek nrog cov cua sov tsis kam ntawm 220℃thiab muaj peev xwm tiv taus 280℃melting ua qhov kub. Nws tseem muaj tshuaj lom neeg tshuaj tiv thaiv zoo heev (muaj zog acid thiab alkali tsis kam).
Cov xwm txheej tseem ceeb:
Kev Kho Mob Ua Haujlwm: CT Scanner Ntes Ntes Bracket;
Cov khoom siv kuaj mob: Cov kws tshuaj analalyer ntshav cov tais;
Kev phais: Siab - zaus} zaus hluav taws xob riam.
Kev xyaum tshiab: ib qho kev ua lag luam siv cov hwj huam ua haujlwm me me los ntawm PPSu kom ua tiav ob npaug {{txheej} txheej tshuab nqus txheej txheem los ntawm kev txhaj tshuaj molding. Nws qhov kub tiv thaiv (-40℃rau 180 degree) thiab cuam tshuam nrog FDA cov qauv, thiab nws tuaj yeem siv ntau tshaj 500 zaug los ntawm kev ua kom tsis muaj menyuam.
4, xaiv logic: cov qauv qhia meej los ntawm qhov yuav tsum tau ua
Cov khoom siv xaiv ntawm cov cuab yeej siv kho mob yuav tsum ua raws li txoj cai triple ntawm "tus nqi nyab xeeb nqi":
Biocompatibility: cov khoom siv uas nkag mus rau hauv kev sib chwv nrog cov ntaub so ntswg / ntshav yuav tsum hla dhau ISO 10993 kev ntsuam xyuas rau CyTotoxicity, txhua yam, thiab Genotoxicity;
Kom tsis muaj menyuam yoog raws li: xaiv cov ntaub ntawv raws li cov qauv kev tsis muaj menyuam (xws li PP / PC rau tus txiv neej ua kom tsis muaj menyuam yaus ua kom tsis muaj menyuam);
Neeg kho tshuab txuam: cog cov twj yuav tsum tau simul antastic modulus ntawm tib neeg cov ntaub so ntswg (xws li beep siv rau kev kho pob txha);
Kev tiv thaiv ib puag ncig: Khoom siv sab nraum zoov yuav tsum tau ntxiv ntawm UV Stetilizers (xws li PC / Abs Alloy).
Kev Kawm Kev Kawm: Thaum ib qho kev lag luam me me tau txhim kho cov khoom siv tshuaj tua hluav taws xob ultrasound, uas txhim kho cov khoom siv hluav taws xob zoo ntawm lub PC / ABS Alloy Plhaub rau ±Oy 0.05mm. Nyob rau tib lub sijhawm, cov thermal deformation kub tau nce mus rau 145℃los ntawm kev ntxiv 20% fiber ntau, ua tiav txoj kev kuaj ib puag ncig los ntawm -20 degree.
