Kev Taw Qhia
Cov kws kho hniav feem ntau soj ntsuam cov hom bracket uas khi nws tus kheej tsis yog los ntawm kev tshaj tawm xwb, tab sis los ntawm qhov uas tus neeg muag khoom muab qhov ntev ntawm qhov chaw, kev ua haujlwm ntawm cov clip txhim khu kev qha, thiab qhov tseeb ntawm cov tshuaj kho mob thoob plaws cov rooj plaub. Nrog ntau tus neeg tsim khoom nkag mus rau hauv kev ua lag luam, kev sib piv cov hom tam sim no yuav tsum tau saib xyuas kev ua haujlwm zoo hauv kev kho mob, qhov zoo ntawm cov khoom siv, thiab kev ruaj khov ntawm cov khoom siv. Tsab xov xwm no qhia txog cov hom bracket uas khi nws tus kheej uas feem ntau pom zoo los ntawm cov kws kho hniav thiab piav qhia txog dab tsi ua rau tus neeg muag khoom tsim nyog ntseeg siab, los ntawm kev sib raug zoo ntawm biomechanical mus rau cov qauv tsim khoom. Thaum kawg, cov nyeem ntawv yuav muaj lub moj khaum meej dua rau kev xaiv cov khoom uas txhawb nqa cov txheej txheem kho mob du, cov txiaj ntsig kwv yees tau, thiab tus nqi xyaum mus sij hawm ntev.
Vim li cas tus neeg muag khoom siv cov brackets uas khi nws tus kheej thiaj li tseem ceeb
Lub ntiaj teb kev muab khoom siv orthodontic tau hloov zuj zus, hloov pauv mus rau qhov loj heevbiomechanics uas tsis muaj kev sib txhuam tsawgthiab kev tsim khoom siab heev. Xaiv ib qho kev txhim khu kev qhatus kheej ligating brackets chaw tsim khoomtsis yog tsuas yog ib txoj haujlwm yuav khoom xwb; nws yog ib qho kev txiav txim siab tseem ceeb hauv kev kho mob uas cuam tshuam ncaj qha rau lub sijhawm zaum, kev kwv yees tau kev kho mob, thiab tag nrho cov txiaj ntsig ntawm kev kho mob.
Nrog rau kev lag luam bracket uas khi nws tus kheej muaj kev kwv yees tias yuav loj hlob txhua xyoo (CAGR) ntau dua 8.5%, kev nthuav dav ntawm cov chaw tsim khoom tau tsim ob qho tib si lub sijhawm thiab kev pheej hmoo rau cov chaw kho hniav thiab cov neeg faib khoom kho hniav. Kev txheeb xyuas tus neeg muag khoom uas muaj peev xwm tswj hwm cov qauv hlau nruj thaum muab kev tsim khoom loj yog qhov tseem ceeb rau kev ruaj khov ua haujlwm mus sij hawm ntev.
Kev xav txog kev kho mob thiab kev xaiv cov bracket
Cov kev xav txog kev kho hniav orthodontic feem ntau yuam kev xaiv cov bracket, uas yuav tsum tau cov neeg muag khoom muab cov txheej txheem uas sib haum nrog cov txheej txheem biomechanical tshwj xeeb. Cov self-ligating brackets (SLBs) tshem tawm qhov xav tau elastomeric ligatures, hloov pauv qhov archwires cuam tshuam nrog qhov bracket slot. Qhov kev hloov pauv no txo qhov kev sib txuas thiab kev sib txhuam txog li 40-50% thaum lub sijhawm pib theem thiab kev sib dhos.
Cov kws kho mob uas vam khom cov tshuaj tshwj xeeb, xws li Roth, MBT, lossis cov kev hloov pauv siab/qis, yuav tsum koom tes nrog cov chaw tsim khoom uas muaj peev xwm xa cov lus qhia meej. Kev hloov pauv ntawm 1 txog 2 degrees hauv lub hauv paus torque tuaj yeem ua rau cov hniav txav tsis tau xav tseg, ua rau cov hlau khoov thiab ntev lub sijhawm kho mob.
Cov kev lag luam uas cuam tshuam rau qhov kev thov ntawm cov neeg muab khoom
Cov yam ntxwv ntawm kev lag luam loj thiab kev hloov pauv ntawm cov khoom siv tau hloov pauv txoj kev uas cov neeg faib khoom thiab cov koom haum pabcuam hniav loj (DSOs) nrhiav cov khoom muag kho hniav. Keeb kwm, cov kev coj ua yuav luag tsuas yog vam khom cov khoom lag luam hauv tsev zoo tshaj plaws. Txawm li cas los xij, cov nqi them ua haujlwm nce siab thiab kev nce nqi tau tsav kev tshawb nrhiav cov khoom lag luam OEM (Original Equipment Manufacturer) zoo uas muaj kev ua tau zoo sib xws yam tsis muaj cov khoom lag luam zoo tshaj plaws.
Ntxiv mus, qhov kev thov kom lub sijhawm zaum luv dua - txuag tau qhov nruab nrab ntawm 10 txog 15 feeb rau ib qho kev teem sijhawm hloov kho - tau ua kom muaj kev siv SLBs sai dua. Cov neeg muab khoom tam sim no yuav tsum sib npaug qhov kev thov ntau nrog kev tswj xyuas zoo tas li, vim tias txhua qhov teeb meem hauv kev xa khoom ntawm cov brackets lossis cov cuab yeej qhib tshwj xeeb tuaj yeem cuam tshuam cov sijhawm kho mob thoob plaws tag nrho DSO network.
Cov hom bracket khi tus kheej zoo tshaj plaws piv rau
Kev taug kev ntawm ntau yam kev lag luam ntawm cov khoom siv bracket uas khi nws tus kheej yuav tsum nkag siab txog cov txheej txheem khi thiab cov theem tsim khoom. Cov kws kho hniav orthodontic soj ntsuam cov hom lag luam tsis yog tsuas yog ntawm lawv cov lus thov kev lag luam xwb, tab sis kuj ntawm kev ua tau zoo ntawm lawv cov kab ke qhov thiab cov thev naus laus zis khaws cia hauv paus.
Cov txheej txheem sib txuas ua ke ntawm cov khoom siv sib txuas ua ke (active vs passive)
Qhov sib txawv tseem ceeb ntawm kev siv tshuab hauv kev lag luam SLB yog ntawm cov txheej txheem passive thiab active. Cov brackets passive siv lub qhov rooj zawv zawg uas tsim cov qauv zoo li lub raj, uas tso cai rau lub archwire kom zawv zawg tau yooj yim nrog kev sib txhuam tsawg kawg nkaus. Cov brackets nquag muaj lub caij nplooj ntoos hlav uas ruaj khov uas nias rau ntawm archwire, muab lub zog zaum tas mus li rau kev tswj hwm kev sib hloov thiab torque hauv cov theem tom qab ntawm kev kho mob.
| Feature | Kev Sib Txuas Lus Tus Kheej | Kev Sib Txuas Tus Kheej |
|---|---|---|
| Kev Sib Txuas Lus | Lub qhov rooj zawv zawg lossis lub ntaub thaiv ruaj khov | Lub caij nplooj ntoos hlav resilient nias rau ntawm xaim |
| Kev sib txhuam thawj zaug | Qis heev (zoo tagnrho rau kev sib npaug) | Nruab Nrab (nce nrog rau qhov loj ntawm cov hlau) |
| Kev Qhia Txog Torque | Cia siab rau qhov chaw tshem tawm ntawm xaim mus rau qhov | Txhim kho los ntawm kev nias lub zog ntawm cov hlau |
| Daim Ntawv Thov Kho Mob | Kev nthuav dav tshaj plaws thiab kev txav mus los | Kev ua tiav zoo thiab kev tswj hwm hauv paus |
Cov qauv tseem ceeb rau kev sib piv cov kab ke qhov
Thaum piv cov qhov (slot systems) thoob plaws ntau hom, qhov tseeb ntawm qhov ntev yog qhov tseem ceeb heev. Feem ntau cov neeg muag khoom muab ob qho tib si 0.018-nti thiab 0.022-nti qhov sib txawv, tab sis qhov kev sim tiag tiag ntawm ib hom yog nyob rau hauv nws lub hauv paus khaws cia thiab tsim qauv. Cov hom lag luam zoo siv 80-gauge mesh pads lossis laser-etched bases kom ua tiav qhov zoo tshaj plaws mechanical interlock nrog orthodontic adhesives.
Cov qauv kho mob qhia tias lub bracket uas khi tau zoo yuav tsum muaj lub zog sib txuas ntawm 10 txog 15 MPa kom tiv thaiv kev sib txuas ntawm cov hniav thaum kho mob thiab tseem muaj kev nyab xeeb rau cov enamel thaum tshem lub bracket. Tsis tas li ntawd xwb, cov qauv tsim uas tsis tshua muaj neeg siv tau raug saib xyuas zoo heev, vim tias kev txo qhov tob ntawm lub bracket txawm tias 0.5 hli kuj ua rau tus neeg mob xis nyob dua thiab txo cov qhov txhab ntawm cov hniav.
Cov hom lag luam zoo tshaj plaws, nruab nrab, thiab muaj nqis
Kev ua lag luam muaj ntau hom, qib nruab nrab, thiab qib muaj nqis. Cov hom lag luam zoo (xws li Damon los ntawm Ormco lossis In-Ovation los ntawm Dentsply Sirona) muaj tus nqi siab dua, feem ntau yog li ntawm $ 15 txog $ 30 rau ib pawg, txhawb nqa los ntawm cov ntaub ntawv kho mob ntau yam thiab cov khoom siv sib xyaw ua ke.
Ntawm qhov tod tes, cov hom lag luam nruab nrab thiab cov hom lag luam muaj nqis, feem ntau tau los ntawm cov chaw tsim khoom tshwj xeeb, tau kaw qhov sib txawv zoo. Cov thev naus laus zis CNC milling thiab kev txhaj tshuaj hlau (MIM) siab heev tso cai rau cov hom lag luam theem ob no muab cov brackets hauv $ 4 txog $ 9. Rau cov neeg faib khoom, kev tshuaj xyuas cov hom lag luam muaj nqis no suav nrog kev ua kom tus nqi qis dua tsis cuam tshuam nrog kev ua haujlwm ntawm clip lossis cov nqi torque tsis raug.
Cov qauv ntsuas kev siv tshuab thiab kev lag luam
Kev ntsuam xyuas kev lag luam thiab kev lag luam zoo yog qhov tseem ceeb ua ntej cog lus rau ib qhotus kheej ligating brackets chaw tsim khoomCov pab pawg yuav khoom yuav tsum saib dhau cov ntawv teev khoom sab nraud thiab nug txog kev kam rau siab hauv qab, cov qauv kev cai lij choj, thiab cov qauv nqi zais ntawm cov neeg koom tes tsim khoom.
Kev tsim khoom tolerances thiab bracket specifications
Lub hauv paus ntawm kev ua tau zoo ntawm lub bracket yog nwskev kam rau ua khoomCov neeg muab khoom lag luam hauv kev lag luam siv Hlau Txhaj Tshuaj Molding (MIM) ua ke nrog CNC machining theem ob kom ntseeg tau tias qhov loj ntawm qhov yog qhov tseeb. Qhov txwv tsis pub ua siab ntev ntawm +/- 0.0005 ntiv tes hauv qhov yog qhov yuav tsum tau ua; txhua qhov sib txawv dhau qhov no ua rau "slop," ua rau poob qhov kev qhia torque tsis lees paub.
Tsis tas li ntawd xwb, yuav tsum tau saib xyuas cov khoom siv hlau. Cov hlau tsis xeb 17-4 PH qib siab yog qhov ntsuas rau lub zog thiab kev ua haujlwm ntev. Lub tshuab xauv, txawm tias yog lub qhov rooj swb lossis lub caij nplooj ntoos hlav NiTi, yuav tsum tau dhau los ntawm kev sim qaug zog kom paub tseeb tias nws yuav tsis ntswj lossis txhaws dhau 18 txog 24 lub hlis ntawm kev kho hniav ib txwm muaj.
Kev ua raws li txoj cai thiab cov qauv kev tua kab mob
Kev ua raws li txoj cai lij choj ua haujlwm ua ib qho kev lim dej uas tsis tuaj yeem sib tham tau rau kev xaiv cov neeg muag khoom. Txhua lub chaw tsim khoom muaj npe nrov yuav tsum ua haujlwm raws li ISO 13485-certified quality management system. Rau kev faib khoom thoob ntiaj teb, cov brackets yuav tsum muaj FDA 510 (k) clearance hauv Tebchaws Meskas thiab CE MDR daim ntawv pov thawj hauv European Union.
Kev sib haum xeeb ntawm lub cev (Biocompatibility) kuj yog ib qho tseem ceeb heev. Kwv yees li ntawm 10% txog 15% ntawm cov neeg mob thoob ntiaj teb uas muaj kev tsis haum tshuaj nickel, cov neeg muag khoom yuav tsum muab cov ntaub ntawv pov thawj tag nrho, tsis muaj nickel lossislwm txoj hauv kev uas tsis muaj nickel, xws li cov brackets ceramic self-ligating lossis cov titanium alloys tshwj xeeb, txhawb nqa los ntawm cov ntawv qhia txog cytotoxicity thiab sensitization uas tuaj yeem txheeb xyuas tau.
Cov nqi tsav tsheb tshaj qhov nqi ib chav
Txawm hais tias tus nqi ib chav yog qhov ntsuas pom tseeb tshaj plaws, kev ntsuam xyuas kev lag luam tiag tiag yuav tsum muaj tus nqi tag nrho ntawm kev muaj (TCO). Cov nqi zais cia suav nrog kev xa khoom, cov nqi se ntshuam, thiab kev cuam tshuam nyiaj txiag ntawm kev ua tsis tiav hauv kev kho mob. Tus neeg muag khoom muab tus nqi rau $ 3.00 nrog 3% qhov tsis ua tiav thaum kawg kim dua li $ 5.00 nrog tus nqi tsis zoo ze li xoom.
Cov feem pua ntawm qhov tsis zoo uas lees txais tau hauv kev tsim khoom siv kho hniav zoo tshaj plaws yuav tsum tsis pub tshaj 0.5%. Tsis tas li ntawd, cov neeg faib khoom yuav tsum suav nrog tus nqi ntawm cov cuab yeej qhib tshwj xeeb, cov nqi nqa khoom, thiab qhov muaj ntawm cov khoom hloov pauv thaum xam qhov kev ua tau zoo mus sij hawm ntev ntawm daim ntawv cog lus xa khoom.
Yuav ua li cas cov chaw kho mob thiab cov neeg faib khoom yuav tsum nrhiav cov neeg muab khoom
Kev tsim kom muaj ib txoj saw hlau xa khoom uas ruaj khov yuav tsum muaj ib txoj kev npaj nrhiav khoom uas muaj cov qauv zoo. Cov chaw kho mob thiab cov neeg faib khoom yuav tsum taug kev hla dhau qhov nyuaj ntawm kev lag luam thoob ntiaj teb, qhov tsawg kawg nkaus uas yuav tsum tau xaj, thiab kev tso npe lag luam kom tau txais kev koom tes zoo uas txhawb nqa lawv cov qauv lag luam tshwj xeeb.
Qauv kev lees paub thiab kev sib piv ntawm tus muag khoom
Ua ntej yuav pib ua ntau yam khoom, yuav tsum tau kuaj xyuas cov qauv kom zoo zoo. Cov neeg faib khoom yuav tsum thov cov qauv uas tsis muaj npe los sim cov kab mob typodonts. Lub sijhawm kuaj xyuas no yuav tsum sim seb lub tshuab xauv puas ua haujlwm tau zoo, thiab xyuas kom nws qhib thiab kaw tau tsawg kawg 50 zaug sib law liag yam tsis muaj kev poob zog.
Kev sib piv ntawm cov neeg muag khoom kuj yuav tsum suav nrog kev ntsuam xyuas cov ntaub ntawv pov thawj ntawm tus neeg muag khoom. Cov chaw tsim khoom raug cai yuav muab cov duab thaij duab los ntawm lub tshuab ntsuas hluav taws xob (SEM) ntawm lawv cov hauv paus bracket thiab cov ntawv qhia txog kev kuaj mob ywj pheej uas txheeb xyuas lub zog sib txuas thiab qhov tseeb ntawm qhov ntev.
MOQ, lub sijhawm ua khoom, kev sau npe ntiag tug, thiab kev txhawb nqa
Cov nqe lus lag luam qhia txog qhov ua tau ntawm kev sib raug zoo nrog cov neeg muag khoom. Qhov tsawg kawg nkaus xaj (MOQs) sib txawv heev; cov khoom catalog txheem yuav xav tau MOQ ntawm 50 txog 100 teeb, thaum kev tsim khoom ntiag tug feem ntau xav tau MOQ tshaj 500 teeb rau ib daim ntawv qhia tshuaj.
Lub sijhawm ua khoom yog lwm qhov tseem ceeb. Txawm hais tias kev khaws khoom hauv tsev tuaj yeem ua tiav cov xaj hauv 3 txog 5 hnub, kev xa khoom ncaj qha los ntawm lub Hoobkas feem ntau yuav siv sijhawm li ntawm 21 txog 45 hnub. Cov neeg faib khoom uas tab tom nrhiav kev tsim lawv tus kheej lub npe lag luam yuav tsum sib tham.cov lus cim ntiag tug, xyuas kom tus neeg muag khoom tuaj yeem muab cov ntim khoom tshwj xeeb, laser-etched branding ntawm lub hauv paus bracket, thiab kev txhawb nqa tom qab muag khoom.
Cov hom lag luam thoob ntiaj teb piv rau cov neeg muag khoom OEM
Qhov kev txiav txim siab ntawm kev faib cov npe lag luam thoob ntiaj teb uas tau tsim tsa thiab kev koom tes nrog cov neeg muab khoom OEM yog nyob ntawm qhov kev ua lag luam. Cov npe lag luam thoob ntiaj teb muab kev lees paub tam sim ntawd thiab kev txhawb nqa kev lag luam zoo, tab sis tswj hwm cov nqi ntawm cov neeg faib khoom thiab thaj chaw tshwj xeeb.
Cov neeg muag khoom OEM muab kev ywj pheej tsis muaj qhov sib piv thiab cov nyiaj tau los ntau dua, tso cai rau DSOs thiab cov neeg faib khoom hauv cheeb tsam los tsim cov txheej txheem bracket tshwj xeeb. Txawm li cas los xij, txoj kev no tso lub nra hnyav ntawm kev lag luam, kev kawm kho mob, thiab kev sau npe tswj hwm rau lub koom haum nrhiav khoom, xav tau cov khoom siv sab hauv zoo los txhawb kev xa khoom.
Kev txiav txim siab rau kev xaiv tus neeg muag khoom
Kev muab cov lus qhia txog kev siv tshuab, cov kev xav tau kho mob, thiab cov nqe lus lag luam los ua ke ua ib lub moj khaum txiav txim siab ua ke yog kauj ruam kawg hauv cov txheej txheem yuav khoom. Ib txoj hauv kev ua kom ntseeg tau tias tus neeg muag khoom xaiv tau ua raws li cov kev xav tau kho mob tam sim ntawd thiab cov hom phiaj kev loj hlob mus sij hawm ntev.
Kev sib phim ntawm kev xaiv hom rau cov khoom sib xyaw
Qhov kev xaiv zoo tshaj plaws rau cov neeg muag khoom yuav tsum qhia txog cov neeg siv khoom sib txawv. Cov chaw kho mob uas muaj neeg coob thiab ua haujlwm tau sai feem ntau muab qhov tseem ceeb rau cov txheej txheem khi tus kheej uas ua haujlwm tau zoo tshaj plaws thiab txo lub sijhawm zaum, nyiam cov neeg muag khoom uas muaj cov qauv luv nqi loj thiab muaj peev xwm ua tiav sai.
Ntawm qhov tod tes, cov chaw kho hniav me me uas kho cov teeb meem nyuaj thiab ntau yam kev kawm yuav muab qhov tseem ceeb rau cov txheej txheem nquag thiab cov qauv zoo nkauj ceramic. Rau cov chaw no, lub peev xwm ntawm tus neeg muag khoom los muab ib lub ecosystem dav dav - suav nrog cov archwires sib xws, cov raj buccal tshwj xeeb, thiab cov kev hloov pauv torque meej - ntau dua li cov nqi tiag tiag.
Daim ntawv xaiv cov neeg muag khoom kawg
Yuav kom tsis pom zoo qhov kev txiav txim siab zaum kawg, cov pab pawg yuav khoom yuav tsum siv ib qhocov ntaub ntawv xaiv cov neeg muab khoom hnyavCov cuab yeej no tiv thaiv kev ntsuas tus nqi ntau dhau thiab ua kom ntseeg tau tias cov yam tseem ceeb xws li kev ntseeg siab hauv kev kho mob thiab kev ruaj khov ntawm cov khoom xa tuaj raug ntsuas kom raug ua ntej ncav tes mus rau ib qhotus kheej ligating brackets chaw tsim khoomkom ua tiav cov ntawv cog lus.
| Cov Qauv Ntsuas | Qhov Hnyav Tswv Yim (%) | Qhov Ntsuas Yam Tsawg Kawg Nkaus Uas Txais Tau |
|---|---|---|
| Qhov Tseeb thiab Qhov Zoo ntawm Qhov Ntev | 30% | Qhov kam rau siab ntawm qhov chaw nruj me ntsis hauv +/- 0.0005″ |
| Kev Ntseeg Tau thiab Kev Kho Kom Zoo ntawm Clip | 25% | Tsis muaj kev ua tsis tiav hauv qab 50+ qhib / kaw voj voog |
| Kev Ruaj Ntseg ntawm Cov Khoom Siv thiab Kev Xa Khoom | 25% | >95% tus nqi xa khoom raws sijhawm; <30 hnub lub sijhawm ua khoom xa tuaj |
| Cov Lus Cog Tseg thiab Tus Nqi Lag Luam | 20% | Tus qauv MOQ <200 teeb tsa; sib tw TCO |
Nyeem ntxiv:
Cov Ntsiab Lus Tseem Ceeb
- Cov lus xaus tseem ceeb tshaj plaws thiab cov laj thawj rau tus neeg muag khoom khi tus kheej
- Cov lus qhia tshwj xeeb, kev ua raws li txoj cai, thiab kev kuaj xyuas kev pheej hmoo uas tsim nyog lees paub ua ntej koj cog lus
- Cov kauj ruam tom ntej thiab cov lus ceeb toom uas cov nyeem ntawv tuaj yeem siv tau tam sim ntawd
Cov Lus Nug Feem Ntau
Kuv yuav tsum xyuas seb dab tsi yog qhov tseem ceeb ntawm tus neeg muag khoom siv self-ligating brackets?
Tshawb xyuas qhov tseeb ntawm qhov chaw, cov kev xaiv tshuaj xws li MBT lossis Roth, kev tsim cov ntawv cog lus, QC tas li, thiab kev xa khoom txhim khu kev qha. Tus neeg muag khoom kuj tseem yuav tsum muab cov cuab yeej qhib thiab cov lus qhia meej txog cov khoom.
Cov brackets passive thiab active self-ligating sib txawv li cas?
Cov txheej txheem passive txo qhov kev sib txhuam rau kev teeb tsa theem thaum ntxov thiab kev txav mus los. Cov txheej txheem nquag ntxiv qhov siab ntawm clip rau lub zog muaj zog thiab kev tswj hwm kev sib hloov thaum lub sijhawm ua tiav.
Vim li cas qhov kev ntsuas qhov tseeb thiaj li tseem ceeb thaum xaiv cov hom bracket?
Txawm tias qhov me me ntawm lub zog tig lossis lub kaum sab xis kuj tuaj yeem cuam tshuam rau kev txav ntawm cov hniav thiab ua kom kev kho mob ntev dua. Cov qhov txiav meej pab txo cov hlau khoov thiab txhim kho kev kwv yees tau ntawm kev kho mob.
Cov OEM self-ligging brackets puas yog ib qho kev xaiv zoo rau cov chaw kho mob?
Yog, yog tias tus neeg muag khoom OEM tswj hwm kev ua hlau ruaj khov, cov ntawv sau tshuaj raug, thiab QC txhim khu kev qha. Lawv tuaj yeem txo cov nqi thaum txhawb nqa kev ua haujlwm kho mob tas mus li.
Puas yog DenRotary tuaj yeem txhawb nqa kev txiav txim ntau rau cov brackets uas khi nws tus kheej?
DenRotary tsom mus rau kev muab cov khoom siv kho hniav uas muaj peev xwm nthuav dav thiab kev txhawb nqa OEM. Yog xav kom muaj ntau ntau, thov paub meej tias muaj cov tshuaj uas muaj, cov kev xaiv ntim khoom, lub sijhawm ua khoom, thiab cov sijhawm xa khoom ncaj qha nrog lawv pab neeg.
Lub sijhawm tshaj tawm: Lub Rau Hli-11-2026