syringes tuaj yeem ua los ntawm cov yas los yog iav, thiab feem ntau tau qhia rau ntawm qhov ntsuas saum toj no los qhia qhov ntim ntawm cov kua hauv lub raj yas. Cov iav syringes tuaj yeem ua kom muaj ntses nrog cov autoclaves, tab sis vim cov nqi qis ntawm cov koob txhaj tshuaj, cov kabmob niaj hnub no feem ntau yog ua los ntawm cov yas, uas ntxiv kom txo tau cov kabmob ntshav.
Lub tes tsho txheej ntawm tus kabmob ordinary yog ua los ntawm imported co pob tshab kev kho-qib polypropylene; lub piston yog tsim los ntawm tshwj xeeb high-elastic, tsawg-kub resistant roj hmab piston syringe polypropylene (PP) infusion tube yog polychlorinated (PVC)
Cov khoom siv nyob tom tsev thiab sab nrauv feem ntau siv PVC los ua raw khoom, uas muaj qhov zoo ntawm lub cev zoo thiab cov khoom siv dag zog, tsis tshua muaj nqi, thiab yooj yim ntau txheej txheem. Txawm li cas los xij, kev siv PVC raws li cov khoom siv khoos phom tau muaj cov kev tsis zoo hauv qab no: Tej zaum yuav muaj tsawg heev ntawm cov polyethylene monomer uas nyob hauv PVC. Cov tshuaj no tau muab pov thawj los ua ib tug carcinogen; cov yas yas uas yuav tsum tau siv thaum lub sijhawm ua haujlwm yuav siv tau. Cov dej tsis huv raug tsiv tawm; ntxiv ntau hom kev sib txuas nrog hlau uas muaj stabilizers, tuaj yeem nkag rau tib neeg lub cev thiab phom sij; Yuav kom nce qhov ruaj ntseg ntawm cov hlau stabilizers, qhov ntxiv phosphorus-muaj adjuvants ntxiv ua kom muaj kev toxicity ntawm PVC cov ntaub ntawv; Pov tseg ntawm polychlorinated Ethylene kho tsis yooj yim, yuav ua rau muaj pa phem heev rau qhov chaw.
Vim muaj cov teeb meem saum toj no hauv PVC cov ntaub ntawv, tsim cov teb chaws hauv Teb Chaws Asmeskas, Nyiv, thiab Tebchaws Europe tau tsim cov khoom siv rau PVC. Rau hnub tim, PVC tau hwv cov khoom siv khomob siv rau tom tsev vim nws tsis pom lwm yam khoom siv uas yuav sibtw nrog PVC rau kev ua haujlwm thiab nqi.
