Vim li cas titanium rods feem ntau siv hauv cov pob txha pob txha?

Nyob rau niaj hnub no txoj kev kho mob sai sai, cov pob txha pob txha siv tshuab tau ua rau muaj kev cia siab ntawm kev yug dua tshiab rau ntau tus neeg mob pob txha. Ntawm ntau yam khoom siv pob txha, titanium rods, nrog rau lawv cov kev ua tau zoo tshwj xeeb, tau maj mam dhau los ua "cov khoom siv hnub qub" hauv cov pob txha pob txha, dav siv hauv ntau yam kev kho pob txha thiab kev phais.

Lub hauv paus yog vim li cas vim li cas titanium rods nyob hauv txoj haujlwm tseem ceeb hauv cov pob txha pob txha yog lawv cov biocompatibility zoo heev. Thaum ib tug titanium pas nrig yog cog rau hauv tib neeg lub cev, ib tug tuab titanium dioxide (TiO₂) tiv thaiv zaj duab xis sai sai rau ntawm nws nto. Cov yeeb yaj kiab no ua haujlwm zoo li tus neeg saib xyuas ncaj ncees, tiv thaiv kev tso tawm ntawm titanium hlau ions thiab tsis txhob muaj kev phom sij ntawm cov hlau ions rau tib neeg lub cev. Nyob rau tib lub sijhawm, nws tseem tuaj yeem nqus calcium thiab phosphate, txhawb kev tso tawm ntawm hydroxyapatite- lub ntsiab inorganic ntawm tib neeg cov pob txha thiab cov hniav. Cov pob txha pob txha tuaj yeem loj hlob ncaj qha rau ntawm qhov chaw titanium, ua tiav cov ntawv cog lus nruj nrog titanium pas nrig, tsim "biofusion," zoo heev txo qhov kev pheej hmoo ntawm kev tsis lees paub tom qab thiab muab kev lav zoo rau tus neeg mob rov qab los.

Ntxiv nrog rau biocompatibility, txhua yam khoom ntawm titanium rods kuj tau sib xws nrog tib neeg cov pob txha. Cov ntaub ntawv cog qoob loo zoo tshaj plaws xav tau lub zog txaus los tiv thaiv kev ntxhov siab ntawm kev ua haujlwm niaj hnub, thaum lawv cov elasticity yuav tsum zoo ib yam li cov pob txha ntuj kom txo qis "kev nyuaj siab tiv thaiv" cov nyhuv. Titanium rods zoo kawg nkaus ua tau raws li cov kev cai no. Nrog tsuas yog ib nrab ntawm qhov ntom ntom ntawm cov hlau, tsis tau muaj zog sib piv, lawv ua tiav qhov sib npaug zoo ntawm lub teeb yuag thiab siab zog. Qhov tseem ceeb tshaj, qhov elastic modulus ntawm cov titanium alloy tshiab yog ze rau 30 GPa ntawm tib neeg cov pob txha, tiv thaiv cov pob txha tsis zoo vim kev cog qoob loo ntau dhau thiab ua kom lub sijhawm ntev - kho pob txha.

Kev tiv thaiv corrosion ntawm titanium rods kuj yog qhov laj thawj tseem ceeb rau lawv qhov chaw. Tib neeg lub cev ib puag ncig yog hnyav heev ntawm cov hlau; qhov kub thiab txias tsis tu ncua ntawm 37 degree, chloride- cov kua dej ntau hauv lub cev, thiab kev sib txhuam tsis tu ncua txhua yam tuaj yeem ua rau xeb. Txawm li cas los xij, titanium rods, nrog rau lawv zoo heev corrosion kuj, nyob ruaj khov nyob rau hauv xws li ib puag ncig rau ncua sij hawm. Lawv tsis yooj yim corroded los ntawm lub cev nqaij daim tawv, thiab tsis ua rau lawv cuam tshuam cov ntaub so ntswg microenvironment vim kev hloov nyob rau hauv lub zos pH tshwm sim los ntawm corrosion khoom. Cov yam ntxwv no tso cai rau cov titanium rods tswj kev ua haujlwm ruaj khov txawm tias tom qab rov ua kom huv thiab tua kab mob, muab cov neeg mob muaj kev nyab xeeb thiab txhim khu kev qha kev kho mob.

Hauv kev siv tshuaj kho mob, titanium rods kuj tau ua tau zoo heev. Txawm hais tias nyob rau hauv kev tsim cov pob qij txha xws li lub duav, lub hauv caug, lossis lub xub pwg nyom, titanium rods muab kev txhawb nqa ruaj khov, ua kom muaj kev sib koom ua ke ntawm kev sib koom ua ke thiab kev txhim kho cov neeg mob. Hauv kev phais orthopedic, titanium rods kuj tau siv dav hauv kev tsim cov khoom siv kho mob sab hauv xws li cov pob txha daim hlau thiab cov ntsia hlau, pab cov pob txha pob txha rov qab zoo li qub thiab ua haujlwm. Tsis tas li ntawd, nrog kev txhim kho txuas ntxiv ntawm 3D tshuab luam ntawv, kev hloov kho tus kheej ntawm titanium rods tau ua tau. Cov kws kho mob tuaj yeem luam tawm zoo kawg nkaus haum titanium rod implants raws li tus neeg mob cov mob tshwj xeeb thiab cov pob txha morphology, ntxiv kev txhim kho kev phais mob thiab cov neeg mob rov zoo.

Nrog rau nws cov biocompatibility zoo heev, txhua yam khoom muaj peev xwm sib xws nrog tib neeg cov pob txha, superior corrosion kuj, thiab broad clinical application prospects, titanium rods tau dhau los ua ib qho kev xaiv zoo tshaj plaws hauv cov pob txha pob txha. Nrog rau kev txhim kho txuas ntxiv ntawm kev kho mob thev naus laus zis thiab kev tsim kho tshiab tsis tu ncua hauv cov ntaub ntawv tshawb fawb, kev siv cov titanium rods hauv thaj tsam ntawm cov pob txha pob txha yuav nthuav dav thiab nyob rau hauv - qhov tob, ua rau muaj txiaj ntsig zoo rau cov neeg mob pob txha ntau dua.