Hauv cov lus piav qhia ntawm cov cuab yeej siv kho mob tshiab, cov ntaub ntawv tshiab thiab ntse feem ntau siv theem nruab nrab. Txawm li cas los xij tom qab kev xaiv cov khoom siv rau cov cuab yeej kuaj mob tseem ceeb xws li lub tshuab nqus tsev- pab lub mis biopsy koob yog ib qho kev xav tob heev"conservative"lub tswv yim: ua tiav qhov sib npaug zoo ntawm kev ua tau zoo los ntawm kev nkag siab tob thiab paub txog cov ntaub ntawv classic. Raws li cov chaw tsim khoom, peb xaiv kev kho mob -qib 316 stainless hlau ua peb cov khoom tseem ceeb tsis yog qhov tsis muaj kev tsim kho tshiab, tab sis los ntawm kev nkag siab zoo rau kev sib sib zog nqus ntawm nws cov kev txwv kev ua haujlwm thiab kev kho mob. Tsab ntawv xov xwm no tshawb txog qhov kev tshawb fawb txog cov ntaub ntawv no- qhov twg cov kws tshaj lij hauv kev paub ua rau muaj kev cuam tshuam hauv kev ua haujlwm.

Qhov "Golden Ratio" ntawm Lub Zog thiab Toughness: Lub ntsiab lus tob ntawm HRB 70-90

Lub tshuab nqus tsev-pab cov koob txhaj tshuaj ntawm lub mis, tshwj xeeb tshaj yog lawv cov sheaths, yuav tsum tiv taus kev sib tw torsional, kev cuam tshuam, thiab kev thauj khoom cyclic nyob rau hauv cov phab ntsa nyias nyias. Yog tias cov khoom siv tawv dhau lawm, nws yuav nkig thiab tuaj yeem tawg lossis tawg thaum rov ua dua lossis thaum ntsib cov ntaub so ntswg tawv; Yog hais tias mos heev, lub txiav ntug dulls yooj yim, ua rau tsis tiav kev txiav, thiab lub sheath yuav deform, ua rau jamming.

Peb tswj hwm qhov nyuaj ntawm 316 stainless hlau nyob rau hauv qhov ntau ntawm HRB 70-90 (kwv yees sib npaug rau HV 150-200), ib qho kev qhia tshwj xeeb tsis tau xaiv. Qhov no sawv cev rau"golden ratio"nruab nrab ntawm cov khoom siv zog- lub peev xwm los tiv thaiv deformation thiab tsis ua hauj lwm- thiab toughness - lub peev xwm los nqus lub zog yam tsis muaj kev tawg. Nyob rau theem hardness no, rab koob taub hau tuav ntev ntev - ntev sharpness, lub tes tsho txiav tiv taus ntau txhiab lub voj voog nyob rau hauv kev qaug zog kev nyuaj siab, thiab tag nrho cov koob lub cev khaws cia txaus saj zawg zog mus khoov raws txoj kev predetermined nyob rau hauv ultrasound kev taw qhia, tsis txhob muaj cov qauv tseem ceeb thiab mus txog qhov tob tob. Qhov sib npaug sib npaug ntawm cov khoom siv no ua rau lub hauv paus tseem ceeb rau kev ntseeg tau ntawm cov koob tshuaj biopsy.

Lub "Txoj Cai Tsis Txaus" ntawm Biocompatibility: Kev Cog Lus Tshaj Tawm

Kev sib cuag ncaj qha thiab rov ua dua nrog tib neeg cov ntaub so ntswg xav tau cov ntaub ntawv tshwj xeeb biocompatibility . 316 stainless hlau, raws li cov khoom siv cog lus kho mob pov thawj ntau xyoo lawm, tau ntev tau lees paub rau nws txoj kev nyab xeeb. Tab sis peb txoj kev cog lus mus dhau qhov ntawd. Peb xyuas kom meej tias txhua pawg ntawm 316 stainless hlau pas nrig peb siv tsis tsuas yog ua tau raws li cov qauv dav dav xws li ASTM A276, tab sis kuj tseem muaj cov tshuaj lom neeg muaj pes tsawg leeg-xws li tsis tshua muaj sulfur thiab tsawg impurities- txo qis kev pheej hmoo ntawm cytotoxicity thiab rhiab heev ntawm qhov chaw.

Qhov tseem ceeb tshaj, peb nquag txhim kho nws cov biocompatibility los ntawm kev kho mob passivation tom ntej. Los ntawm immersing lub Cheebtsam nyob rau hauv cov kev daws teeb meem xws li citric acid, nto - dawb hlau hais raug tshem tawm, txhawb kev tsim ntawm ib tug heev ruaj khov, ntom, thiab chemically inert chromium oxide passivation txheej. Cov yeeb yaj kiab no ua haujlwm zoo tshaj plaws"diplomatic interface"nruab nrab ntawm cov khoom siv thiab kev lom neeg ib puag ncig, zoo tiv thaiv kev tso tawm ntawm cov hlau ions thiab tiv thaiv corrosion los ntawm lub cev kua. Nws ua kom ntseeg tau tias tsis muaj qhov tsis tsim nyog o lossis kev tsis lees paub tshwm sim thaum lub sijhawm lossis tom qab cov txheej txheem biopsy, txhawb nqa cov khoom siv biocompatibility mus rau qib tshiab.

"Kev Tiv Thaiv Lub Neej" Tawm tsam Corrosion: Kev Tiv Thaiv Kev Sib Tw Sib Tw

Qhov chaw ua haujlwm ntawm cov koob txhaj tshuaj biopsy yog qhov nyuaj heev: lawv yuav tsum tiv taus lub cev lub cev, tuaj yeem cuam tshuam nrog ntau yam tshuaj tua kab mob (xws li cawv thiab aldehydes), thiab yuav tsum ua kom tsis muaj menyuam uas muaj qhov kub thiab txias los yog qis dua -plasma kub. Qhov sib ntxiv ntawm molybdenum (Mo), uas yog ib qho tseem ceeb alloying nyob rau hauv 316 stainless hlau, ho txhim khu nws cov tsis kam rau pitting thiab crevice corrosion-cov khoom tseem ceeb rau biopsy koob cov qauv uas muaj qhov sib txawv hauv cov kab noj hniav thiab nqaim qhov khoob.

Txawm li cas los xij, qhov corrosion kuj ntawm cov khoom nws tus kheej tseem xav tau kev txhim kho los ntawm cov txheej txheem kho saum npoo. Electrolytic polishing tsis tsuas yog ua rau lub ntsej muag du, tab sis kuj ntxiv homogenizes thiab ntxiv dag zog rau cov txheej txheem passive ntawm qhov chaw. Passivation ua haujlwm tshwj xeeb"kev cob qhia"rau corrosion kuj. Cov koob tshuaj Biopsy uas tau ua tiav cov txheej txheem ua tiav tuaj yeem ntseeg siab tuaj yeem tiv thaiv corrosion thoob plaws hauv lawv lub neej tag nrho-los ntawm kev tsim khoom thiab ua kom tsis muaj menyuam mus rau kev khaws cia thiab kev siv tshuaj kho mob- kom ntseeg tau tias kev ua haujlwm zoo ib yam hauv lawv lub neej kev pabcuam.

"Smart Compromise" rau txheej txheem Adaptability: Tsim rau Manufacturing

Kev xaiv cov khoom yuav tsum tau txiav txim siab tag nrho nws cov txheej txheem. Lub machinability zoo heev ntawm 316 stainless hlau ua rau peb siv Citizen precision lathes tig txoj kev nkhaus ntawm cov lus qhia koob nrog qhov tseeb ntawm ± 0.01 hli, zeb du qauv grooves ntawm lub tes tsho, thiab ua kom zoo nkauj txiav npoo. Nws zoo weldability (thaum txuas lwm yam khoom siv) thiab cov lus teb zoo rau kev kho mob saum npoo (yooj yim ua tau zoo -zoo electropolishing thiab passivation) ua rau kev sib koom ua ke ntawm complex multi-component systems ua tau.

Qhov no"Design for manufacturing"kev xav txhais tau hais tias cov ntaub ntawv tsis yog cov khoom ntawm cov khoom, tab sis cov neeg koom nrog hauv tag nrho cov txheej txheem tsim khoom. Xaiv 316 stainless hlau yog xaiv txoj kev paub, tswj tau, thiab txhim khu kev qha uas ncaj ncees txhais cov qauv tsim rau hauv cov khoom siv lub cev.

Raws li cov chaw tsim khoom ntawm lub tshuab nqus tsev-pab koob siv lub mis biopsy, peb txoj hauv kev rau cov ntaub ntawv yog ib txwm nyob ntawm ib lub hauv paus ntsiab lus: sib npaug. Peb nrhiav qhov zoo tshaj plaws point ntawm sharpness thiab lub zog, ntawm inertness thiab functionality, thiab ntawm corrosion kuj thiab workability. Es tsis txhob dig muag chasing trendy cov ntsiab lus, peb tsom mus rau tag nrho cov xauv lub peev xwm ntawm cov khoom siv classic. Peb nkag siab tob tias hauv thaj chaw uas qhov kev kuaj pom tseeb thiab kev nyab xeeb ntawm tus neeg mob yog qhov tseem ceeb, kev ntseeg siab tseem ceeb dua li qhov tshiab. Qhov kev cog lus ruaj khov rau thiab kev nkag siab zoo ntawm cov khoom siv hauv paus yog qhov tseeb uas ua rau peb muaj kev ntseeg siab kom xa cov khoom ntseeg siab rau kev coj noj coj ua -kev ua siab ntev thiab muaj zog kev ntseeg.