https://pmc.ncbi.nlm.nih.gov/articles/PMC11507497/

14ml ntshav- rab koob kos duab, ua ib feem tseem ceeb ntawm kev kho ntshav ntshav, muaj cov ntaub ntawv hloov pauv keeb kwm uas qhia txog kev txhim kho txuas ntxiv ntawm tib neeg kev nkag siab txog kev nyab xeeb kev kho mob. Los ntawm cov "hlau thiab hluav taws" thaum ntxov mus rau niaj hnub siab - thev naus laus zis alloys, kev nce qib ntawm cov ntaub ntawv kev tshawb fawb tau hloov kho thaj tsam kev nyab xeeb thiab kev ua haujlwm ntawm cov cuab yeej no.

Cov cuab yeej siv ntshav ntshav feem ntau yog ua los ntawm cov hlau xws li hlau, tooj liab, thiab tooj liab. Lawv qhov teeb meem tsis zoo xws li xeb yooj yim thiab tsis zoo biocompatibility. Txawm hais tias thaum siv cov txheej txheem "tso tshuaj tua kab mob" qub xws li kub hnyiab lossis nplaim taws thaum rov siv dua, qhov kev pheej hmoo ntawm kev kis kab mob tsis tuaj yeem tshem tawm tag nrho, tshwj xeeb tshaj yog rau tetanus thiab sepsis. Niaj hnub no 14ml bloodletting koob, lub hauv paus kev nyab xeeb yog nyob rau hauv nws cov khoom. Cov ntaub ntawv tseem ceeb siv yog 304 lossis 316L stainless hlau . 304 stainless hlau, nrog nws cov corrosion kuj zoo heev thiab kev ua haujlwm, yog dav siv hauv cov khoom siv kho mob pov tseg. Thaum 316L stainless hlau muaj nws cov ntsiab lus molybdenum ntxiv, uas ua rau nws muaj zog tiv thaiv chloride corrosion (xws li chloride ions hauv hws thiab ntshav), txhim kho nws cov biocompatibility, thiab tshwj xeeb tshaj yog tsim nyog rau cov xwm txheej uas xav tau kev sib cuag nrog ib puag ncig sab hauv lossis muaj kev xav tau ntau dua rau cov khoom siv. NiTi (nickel{11}}titanium alloy, tseem hu ua Memory alloy) kuj tseem siv rau hauv qee cov koob tsim tshwj xeeb, tab sis nws cov txiaj ntsig tseem ceeb nyob hauv nws lub cim xeeb thiab elasticity super, uas yuav siv tau rau cov kaum tshwj xeeb tshwj xeeb lossis cov qauv siv rab koob hloov tau yooj yim, es tsis yog lub hauv paus loj pov tseg 14ml bloodletting koob.

Lub ntsiab tseem ceeb ntawm kev xaiv cov khoom siv feem ntau yog nyob rau hauv"inertness". Cov khoom siv koob zoo tshaj plaws yuav tsum, thaum nyob rau hauv kev sib cuag nrog cov ntshav thiab cov ntaub so ntswg, txo cov tshuaj lom neeg cov tshuaj tiv thaiv, tsis txhob tso cov ions tsim kev puas tsuaj, thiab tsis ua rau lub cev tsis muaj zog lossis coagulation system ua kom muaj zog. Qhov no ua kom muaj kev ruaj ntseg ntawm cov khoom hauv cov ntshav thaum lub sij hawm cov txheej txheem tawm thiab muab lub hauv paus ntawm qhov tseeb rau kev kuaj ntshav tom ntej (yog tias cov ntshav tso tawm yuav tsum tau txheeb xyuas). Qhov thib ob, nws nyob hauv"mechanical zog". Lub ntim ntim 14ml yuav tsum muaj rab koob kom muaj kev tiv thaiv zoo rau kev khoov thiab tawg hauv qab lub raj lub cev ntev (kom yooj yim rau kev ua haujlwm thiab kev sib txuas nrog cov hlab ntshav los yog ntim), thiab muaj peev xwm tiv taus tag nrho cov txheej txheem nruj los ntawm lub raj rub, rab koob sib tsoo, sab hauv kab noj hniav polishing mus rau qhov kawg kom tsis muaj menyuam tsis muaj kev ua haujlwm degradation. Thaum kawg, nws nyob hauv"processability". Cov khoom siv yuav tsum muaj peev xwm tiv taus tag nrho cov txheej txheem nruj los ntawm kev rub lub raj, rab koob sib tsoo, puab kab noj hniav polishing mus rau qhov kawg kom tsis muaj menyuam tsis muaj kev ua haujlwm tsis zoo.

Kev kho saum npoo ntawm cov khoom siv los ua cov kab thib ob ntawm kev tiv thaiv kev nyab xeeb. Los ntawm cov txheej txheem xws li electrolytic polishing, tsis tsuas yog ua tau ib tug du thiab daim iav -zoo li sab hauv thiab sab nrauv ua tiav, txo cov ntshav turbulence thiab cell puas, tab sis tseem ceeb tshaj, nws muaj peev xwm tshem tawm microcracks thiab burrs generated thaum lub sij hawm ua. Cov kab mob microscopic no yog qhov chaw ntawm cov kab mob colonization thiab tawg propagation. Nyob rau tib lub sijhawm, lub ntsej muag du kuj pab txhawb kev siv tshuaj kho mob silane lubricating txheej kho mob, uas tuaj yeem txo qhov kev tiv thaiv ntau txog 60% -80%, txo tus neeg mob qhov mob, thiab ua kom cov koob tso rau hauv cov hlab ntsha ruaj khov, zam kev puas tsuaj rau vascular intima los ntawm kev sib txhuam.

Niaj hnub no sterilization thiab ntim technologies yog complementary rau cov khoom siv. Qhov chaw tsim khoom uas ua raws li cov qauv thoob ntiaj teb xws li ISO13485 thiab ISO9001 ua kom cov khoom siv roj ntsha tsawg tsawg hauv lawv lub xeev thawj zaug. Cov koob no thaum kawg tau ua kom tsis muaj menyuam siv ethylene oxide lossis gamma rays, thiab lawv cov ntim yog ib qho kev kho mob tshwj xeeb - qib breathable- cov khoom siv bacteriostatic, kom ntseeg tau tias kev nkag mus tau zoo thiab kev sib cais ntawm cov neeg ua kom tsis muaj menyuam, thiab tswj lub xeev tsis muaj menyuam thaum thauj mus los thiab khaws cia kom txog thaum siv. Yog li ntawd, niaj hnub 14ml ntshav- rab koob kos duab, nrog rau nws cov khoom siv thiab tag nrho cov txheej txheem ua tiav, tsim kom muaj kev nyab xeeb kev nyab xeeb los ntawm kev cuam tshuam ntawm lub cev mus rau biochemical cov tshuaj tiv thaiv, ua rau kev kho mob thaum ub ntawm cov ntshav kho mob - kos duab kom ua tiav hauv cov txheej txheem kho mob niaj hnub uas tswj tau thiab nyab xeeb.