Kev siv cov titanium rods hauv tib neeg lub cev
Hauv kev tshawb nrhiav cov cuab yeej siv kho mob niaj hnub no, cov khoom siv titanium qws tau dhau los ua kev xaiv nrov hauv kev cog qoob loo ntawm tib neeg vim lawv cov yam ntxwv zoo. Cov khoom no tsis yog tsuas yog siab zog thiab lub teeb nyob rau hauv qhov hnyav, tab sis kuj muaj zoo corrosion kuj thiab compatibility nrog tib neeg cov ntaub so ntswg. Cov txiaj ntsig no ua rau nws ci ntsa iab hauv ntau thaj chaw kho mob.
Titanium rods yog ib yam khoom siv heev, thiab purity ntawm daim txhuam cev titanium tuaj yeem ncav cuag 99.9%. Cov khoom siv tshuaj lom neeg ntawm titanium yog qhov ruaj khov thiab yuav tsis nqus los ntawm tib neeg lub cev. Nws tsis hnov tsw tshuaj nrog lub cev thiab tshuaj, thiab tsis ionize, thiab tsis hnov tsw ntawm tib neeg cov leeg thiab pob txha, yog li nws yog hu ua "bio-phooj ywg hlau". Vim tias titanium yog "biophilic", nws tuaj yeem tiv taus qhov corrosion ntawm secretions hauv tib neeg lub cev thiab tsis muaj tshuaj lom, yog li nws tsim nyog rau txhua txoj kev ua kom tsis muaj menyuam. Yog li, biomedical titanium (cov ntaub ntawv tseem ceeb: kho mob titanium rods, kho mob titanium daim hlau, kho mob titanium xov hlau) yog ib ceg tseem ceeb ntawm cov ntaub ntawv kho mob science, feem ntau yog siv los kho lossis hloov tib neeg cov ntaub so ntswg thiab lub cev los yog txhim kho lawv cov dej num. Nws yog ib yam tshiab ntawm cov khoom nqa khoom nrog cov ntsiab lus siab thiab kev lag luam siab. Thaum cov nqaij pob txha tshiab tau qhwv ib ncig ntawm "cov pob txha titanium", cov pob txha titanium no pib tswj cov kev ua ub no ntawm tib neeg lub cev.
Titanium yog dav faib nyob rau hauv tib neeg lub cev, thiab nws cov ntsiab lus nyob rau hauv tib neeg lub cev tsis ntau tshaj 15 mg ib 70 kg ntawm lub cev hnyav. Nws txoj haujlwm tseem tsis tau paub meej. Txawm li cas los xij, nws tau raug pov thawj tias titanium tuaj yeem txhawb nqa phagocytes thiab txhim kho kev tiv thaiv. Titanium yog cov hlau ruaj khov uas muaj siab hardness, lub teeb yuag, yuav tsis xeb lossis deteriorate, thiab yuav tsis ua rau cov hlau tsis haum. Titanium muaj cov khoom siv hluav taws xob tshwj xeeb, uas yuav muaj txiaj ntsig zoo rau lub cev ntawm tib neeg lub cev, thiab nws cov tshuaj lom neeg ruaj khov yuav tsis hloov pauv lossis tsis zoo rau lub sijhawm.
Hauv 10 xyoo dhau los, kev lag luam loj hlob ntawm cov ntaub ntawv biomedical thiab cov khoom lag luam tseem nyob ib puag ncig 30%. Nws cia siab tias nyob rau hauv 10-20 xyoo tom ntej, kev lag luam khoom siv kho mob, suav nrog cov khoom siv hlau kho mob, yuav ncav cuag qhov loj ntawm kev lag luam ntawm cov khoom lag luam thiab dhau los ua kev lag luam hauv ntiaj teb kev lag luam hauv xyoo pua 21st. Raws li kev txheeb cais tsis tiav, tus naj npawb ntawm cov neeg xiam oob khab hauv ntiaj teb yog ze li ib feem kaum ntawm lub ntiaj teb cov pej xeem, nrog rau 60 lab tus tib neeg tsis taus thiab 2 billion tus neeg mob hniav. Tam sim no, tsuas yog 35 lab tus tib neeg tau txais kev phais phais, thiab txhua xyoo ntawm cov kev hloov pauv sib koom yog kwv yees li 1.5 lab, uas yog deb ntawm cov neeg xav tau kev hloov pauv tiag tiag. Yog li ntawd, lub peev xwm xav tau hauv kev lag luam biomedical khoom yog loj. Raws li thawj qhov kev xaiv ntawm cov ntaub ntawv biomedical, qhov kev thov rau kev kho mob titanium thiab titanium alloys tseem yuav nce ntxiv, yog li nws yog ib qho tseem ceeb kom nce kev tshawb fawb thiab kev loj hlob ntawm cov ntaub ntawv kho mob titanium.
Cov khoom tshwj xeeb ntawm titanium rods tau hloov cov tswv yim tsim ntawm cov tshuaj cog qoob loo thiab muab kev cia siab tshiab rau cov neeg mob suav tsis txheeb. Nws daim ntawv thov tsis tsuas yog txhim kho qhov kev vam meej ntawm kev kho mob phais, tab sis kuj txo qhov tsis xis nyob ntawm cov neeg mob tom qab kev phais thiab ua rau cov txheej txheem rov qab smoother. Cov txiaj ntsig zoo no ua rau cov khoom siv titanium pas nrig yog qhov tseem ceeb ntawm kev kho mob thev naus laus zis.
