Titanium alloy kev kho mob hauv paus
Lub ntsiab zoo ntawm kev siv titanium thiab titanium alloys raws li tib neeg cog yog:
(1) Ceev (20 degree) =4.5g/cm³, lub teeb yuag. Implanted rau hauv tib neeg lub cev: Txo cov load ntawm tib neeg lub cev. Raws li cov cuab yeej kho mob: Txo cov haujlwm ua haujlwm ntawm cov neeg ua haujlwm kho mob.
(2) Lub elastic modulus yog qis, ntshiab titanium yog 108 500 MPa, thiab nws yog cog rau hauv tib neeg lub cev: nws yog ze rau lub ntuj pob txha ntawm tib neeg lub cev, uas yog conducive rau pob txha grafting thiab txo cov kev ntxhov siab. shielding nyhuv ntawm cov pob txha ntawm qhov cog.
(3) Tsis yog-magnetic, tsis cuam tshuam los ntawm electromagnetic teb thiab thunderstorms, uas muaj txiaj ntsig zoo rau tib neeg lub cev kev nyab xeeb tom qab siv.
(4) Tsis muaj tshuaj lom, nws tsis muaj tshuaj lom lossis muaj kev phiv rau tib neeg lub cev raws li kev cog qoob loo.
(5) Corrosion kuj (biologically inert hlau khoom). Nws muaj corrosion kuj zoo heev nyob rau hauv lub immersion ib puag ncig ntawm tib neeg cov ntshav, kom ntseeg tau zoo compatibility nrog tib neeg cov ntshav thiab cell cov ntaub so ntswg. Raws li kev cog qoob loo, nws tsis ua rau tib neeg muaj kuab paug thiab tsis ua rau muaj kev tsis haum tshuaj yuav tshwm sim, uas yog ib qho kev mob yooj yim rau kev siv cov titanium thiab titanium alloys.
(6) Siab zog thiab zoo toughness. Pob txha thiab pob qij txha puas vim kev raug mob, qog thiab lwm yam. Txhawm rau tsim kom muaj cov pob txha ruaj khov, cov phaj arc, cov ntsia hlau, cov pob txha pob txha thiab cov pob qij txha, thiab lwm yam. Cov implants no yuav tsum tau muab tso rau hauv qhov chaw ntev. Nyob rau hauv tib neeg lub cev, nws yuav raug khoov, twisting, squeezing, nqaij contraction thiab lwm yam kev cuam tshuam ntawm tib neeg lub cev, yuav tsum tau implants kom muaj zog thiab toughness.
Kev kho mob titanium alloys tam sim no tsim yog tsuas yog + hom titanium alloys. Los ntawm qhov kev xav ntawm kev npaj technology, kev tsim khoom ntawm TC4 (TC4ELI) tam sim no tuav lub lag luam tseem ceeb. -type titanium alloy muaj qee qhov zoo hauv biocompatibility thiab mechanical compatibility, yog li nws tau dhau los ua kev tshawb fawb hotspot rau tshiab kho mob titanium alloys thiab yog lub peev xwm tshaj plaws hauv kev kho mob cog.
