Daim ntawv thov kev kho mob titanium phaj hauv tib neeg lub cev
Raws li kev txheeb cais tsis tiav, cov neeg xiam oob khab hauv ntiaj teb suav txog ze li ib feem kaum ob ntawm cov neeg hauv ntiaj teb. Muaj 60 lab tus neeg xiam oob khab, ze li 2 billion tus neeg mob kho hniav, tsuas yog 35 lab qhov kev phais phais, thiab kwv yees li 1.5 lab hloov pauv txhua xyoo, uas yog deb ntawm cov neeg xav tau kev hloov pauv. Yog li ntawd, lub peev xwm xav tau hauv kev lag luam biomedical khoom yog loj. Raws li thawj qhov kev xaiv rau cov ntaub ntawv biomedical ---Kev kho mob titanium barthiab titanium alloy xav tau kuj yuav nce siab heev, yog li nws yog ib qho tseem ceeb kom muaj kev tshawb fawb thiab kev loj hlob ntawm kev kho mob titanium daim hlau. Piv nrog rau cov kev kho mob ib txwm muaj xws li cov phaj me me, steel hlau sab hauv fixation, ib lub puab tsaig ligation, thiab intermaxillary traction, sab hauv fixation ntawm titanium phaj nyob rau hauv maxillofacial fractures tsis tawm nti ntawm lub ntsej muag muaj qhov zoo ntawm kev ua haujlwm yooj yim, kev puas tsuaj me me, thiab kev kho mob zoo. . Rau qhov tseeb thiab txhim khu kev qha anatomical fixation, ib qho kev phais extraoral yog yuav tsum tau rau cov txheej txheem condylar thiab zygomatic arch fractures, thiab intraoral incisions feem ntau yog siv rau lwm yam maxillary thiab maxillary fractures. Nws kuj zam kev puas tsuaj rau lub ntsej muag paj hlwb. Lub titanium phaj siv rau kev kho sab hauv yog Zhongbang hom titanium phaj series sib koom ua ke tsim los ntawm Xi'an Zhongbang Tuam Txhab thiab Cov Khoom Siv Kho Hniav ntawm Lub Tsev Kawm Ntawv Qib Siab Fourth Military Medical University. Nws muaj biocompatibility zoo, siab corrosion kuj, thiab yog sib xws nrog tib neeg cov pob txha thiab cov ntaub so ntswg mos. Nws muaj kev sib raug zoo, thiab tshwj tsis yog tias nws kis tau tus kab mob, nws tuaj yeem khaws cia hauv lub cev kom ntev li ib txwm muaj, tsis tas yuav tsum muaj kev phais thib ob kom tshem tawm nws, uas txo cov nqi tsev kho mob thiab kev lag luam ntawm cov neeg mob. Qhov teeb meem ntawm intermaxillary traction nyob rau hauv titanium phaj sab hauv fixation, nws ntseeg tau hais tias intraoperative intermaxillary traction tuaj yeem muab kev kho kom zoo ntawm cov pob txha tawg thiab muaj kev sib raug zoo occlusal, thiab tseem tuaj yeem tiv thaiv kev drilling, thiab ntu tawg yuav raug tshem tawm dua thaum lub titanium ntsia hlau yog ntxig. Kev cuam tshuam ntawm kev sib raug zoo occlusal yog tshwm sim. Tsuas yog rau cov mob maxillary thiab maxillary pob txha pob txha uas yuav tsum tau pab nrog intermaxillary traction thiab fixation li ntawm 1 lub lis piam tom qab fixation sab hauv, lwm yam fractures feem ntau tsis xav tau traction thiab fixation tom qab fixation, vim hais tias lub sij hawm traction yog luv thiab tus neeg mob lub cev. kev ua haujlwm ntawm kev sib koom ua ke ntawm mandibular tsis tshua muaj kev cuam tshuam, nws yooj yim los tswj lub qhov ncauj huv si, thiab nws tuaj yeem noj tau, uas yog muaj txiaj ntsig zoo rau tus neeg mob noj zaub mov zoo thiab kho qhov txhab, thiab tib lub sijhawm zoo heev txo qhov mob ntawm tus neeg mob piv rau yav dhau los. Kev xaiv ntawm txoj hauj lwm ntawm titanium phaj fixation, nws tau txiav txim siab tias qhov kev xaiv ntawm txoj hauj lwm tsim nyog ntawm titanium splint yog ib qho ntawm cov xwm txheej los xyuas kom meej qhov kev vam meej ntawm titanium phaj sab hauv fixation. Mandibular fractures uas tsis yog condylar fractures tau kho raws li Champi zoo tshaj kab, uas yog, mandibular lub cev pob txha tawg titanium phaj tau tsau rau ntawm sab hauv cov pob txha pob txha ntawm sab nraud oblique kab, uas yog, nruab nrab ntawm cov hniav hauv paus thiab cov kwj dej alveolar inferior. , nyob rau hauv nruab nrab thiab ib sab ntawm lub midline Qhov tawg yuav tsum tau kho nrog ob qho tib si titanium. daim hlau. Qhov chaw zoo tshaj plaws los tso cov phiaj xwm micro-titanium hauv midface fractures yuav tsum yog lub orbital rim, zygomatic alveolar ridge, ntug ntawm pyriform qhov, thiab cov ntsia hlau yuav tsum muab tso rau ntawm cov pob txha tuab ntawm cov ncej ntsug. Kev kho mob titanium bar, biomedical titanium (cov khoom siv tseem ceeb: kev kho mob titanium phaj, kho mob titanium hlau) yog ib ceg tseem ceeb ntawm cov khoom siv kho mob, feem ntau yog siv los kho lossis hloov tib neeg cov ntaub so ntswg, kab mob los yog txhim kho lawv txoj haujlwm, nrog cov ntsiab lus siab thiab kev lag luam muaj txiaj ntsig. cov khoom siv thauj khoom tshiab. 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 cov ntsiab lus nyob rau hauv tib neeg lub cev yog tsis ntau tshaj 15 mg ib 70 kg lub cev hnyav, thiab nws lub luag hauj lwm yog tsis meej. Txawm li cas los xij, nws tau raug lees paub tias titanium tuaj yeem txhawb nqa phagocytes thiab txhim kho kev tiv thaiv. Titanium nws tus kheej yog cov hlau ruaj khov uas muaj siab hardness thiab lub teeb yuag uas yuav tsis xeb los yog deteriorate los yog ua rau cov hlau tsis haum. Titanium muaj cov yam ntxwv tshwj xeeb tam sim no, 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 kev loj hlob ntawm cov ntaub ntawv biomedical thiab cov khoom lag luam tau khaws cia li ntawm 30%. Nws kwv yees tias nyob rau hauv 10-20 xyoo tom ntej, kev lag luam khoom siv kho mob, suav nrog cov ntaub ntawv kho mob hlau, yuav ncav cuag qhov ntsuas ntawm cov khoom lag luam tshuaj thiab yuav dhau los ua lub lag luam loj tshaj plaws hauv ntiaj teb hauv xyoo pua 21st. pillar kev lag luam ntawm kev lag luam.
