Dab tsi yog qhov ua haujlwm ntawm diodes hauv cov khoom siv laser kho?

Ib, Technical hauv paus ntsiab lus: meej hloov dua siab tshiab ntawm hluav taws xob zog rau lub teeb lub zog
Laser diode yog lub teeb emitting ntaus ntawv raws li lub hauv paus ntsiab lus ntawm stimulated tawg ntawm semiconductor PN hlws ris. Thaum lub zog tam sim no dhau los ntawm PN kev sib tshuam, cov hluav taws xob hloov pauv los ntawm cov khoom siv hluav taws xob mus rau qhov valence band, rov ua dua nrog qhov, thiab tso tawm lub zog los tsim cov photons. Cov photons tau rov qab xav dua thiab nthuav dav hauv qhov resonant kab noj hniav, thaum kawg tsim ib lub laser beam nrog siab monochromaticity, directionality, thiab coherence. Lub hauv paus ntawm txoj kev no yog nyob rau hauv:

Carrier recombination: Lub recombination efficiency ntawm electrons thiab qhov ncaj qha cuam tshuam lub laser tso zis zog, thiab band qauv yuav tsum tau optimized los ntawm cov khoom siv doping (xws li GaAs, InP).
Resonant kab noj hniav tsim: Tswj txoj kev photon oscillation los ntawm coated tsom iav kom ntseeg tau tias laser wavelength stability thiab lub zog concentration.
Kev tswj cov cua kub: Laser diodes ua kom sov thaum lub sijhawm ua haujlwm, thiab qhov kub thiab txias yuav tsum tau tswj xyuas los ntawm cov cua kub cua txias (TEC) los yog cua txias tshuab kom tsis txhob muaj kev sib tw thiab lub zog attenuation.
Noj 650nm liab laser diode feem ntau siv hauv kev kho mob ua piv txwv, nws qhov kev hloov pauv ntawm lub zog hluav taws xob mus rau lub teeb lub zog tuaj yeem ncav cuag ntau dua 40%, siab dua li cov teeb pom kev zoo ib txwm muaj, muab lub hauv paus rau kev siv me me thiab kev txav mus los ntawm cov cuab yeej kho mob.

2, Wavelength yam ntxwv: meej txuam ntawm qhov tob tob thiab nqus cov ntaub so ntswg
Lub wavelength ntau ntawm laser diodes npog 308nm rau 1470nm, thiab sib txawv wavelengths sib txawv ntawm cov ntaub so ntswg nkag mus rau qhov tob thiab nqus cov yam ntxwv, ncaj qha txiav txim siab lawv cov ntaub ntawv kho mob scenarios.

Lub ntsiab daim ntawv thov ntawm wavelength nkag mus tob
650nm 0.5-1mm kho epidermal, kho qhov txhab, tshem tawm pob txuv, thiab tshem tawm cov ntshav liab streaks (nce siab hemoglobin absorption)
808nm 2-3cm mob leeg, mob caj dab, mob nqaij mos (xws li mus rau hauv cov leeg nqaij los txhawb cov ntshav ncig)
980nm 1-2cm vascular kaw thiab varicose leeg kho (nruab dej nqus, ua tiav qhov vaporization)
1470nm 0.8-1.2mm pob ntseg, qhov ntswg, thiab caj pas phais (xws li tonsillectomy), kev kho mob hemorrhoid (siab dej nqus tus nqi, txo los ntshav)
Piv txwv li, nyob rau hauv kev kho mob ntawm qhov ncauj ulcers, 650nm laser txhawb cell ATP synthesis, accelerates epithelial cell proliferation, thiab shortens lub sij hawm kho los ntawm ntau tshaj 50%; Hauv kev phais mob hemorrhoid, cov yam ntxwv nqus dej siab ntawm 1470nm laser tuaj yeem ua tiav synchronous tiav ntawm "txiav + coagulation", txo qis tom qab los ntshav los ntawm 80%.

3, Daim ntawv thov kev kho mob: Tag nrho qhov xwm txheej los ntawm kev tswj qhov mob mus rau qhov kev phais me me
Cov txiaj ntsig zoo ntawm laser diodes tau ua rau muaj kev sib txawv hauv lawv daim ntawv thov hauv kev kho mob

1. Rehabilitation therapy: non-kev tswj qhov mob
Tsawg zog (0.05-0.3J / cm ²) 650nm lossis 808nm lasers inhibit qhov kev tso tawm ntawm cov kab mob inflammatory, txo cov paj hlwb excitability, thiab alleviate mob ntev xws li ncauj tsev menyuam spondylosis thiab lumbar nqaij strain los ntawm photobiological stimulation teebmeem. Cov ntaub ntawv kho mob qhia tau hais tias qhov ua tau zoo ntawm 808nm laser kho rau mob caj dab yog 82%, thiab tsis muaj kev phiv tshuaj.

2. Kev zoo nkauj ntawm daim tawv nqaij: kev tswj lub zog meej
Lub zog siab (1-5W) ze-infrared lasers (xws li 808nm, 980nm) tsom qhov kev puas tsuaj ntawm melanin hauv cov hauv paus plaub hau los ntawm kev xaiv photothermal ua, ua tiav cov plaub hau tshem tawm mus tas li; Tsis tshua muaj zog liab lub teeb laser txhawb collagen synthesis, txhim kho daim tawv nqaij elasticity, thiab txo wrinkles.

3. Cov txheej txheem phais: kev sib xyaw ua ke ntawm cov txheej txheem invasive tsawg thiab meej
1470nm laser yog dav siv nyob rau hauv otolaryngology, urology, thiab proctology phais vim nws siab dej nqus tus nqi. Piv txwv li, hauv tonsillectomy, 1470nm laser tuaj yeem ua kom cov ntaub so ntswg muaj kab mob, thaum kaw cov hlab ntsha, txo lub sijhawm phais mus rau ib qho -feem peb ntawm cov txheej txheem ib txwm siv thiab txo qis tus kab mob tom qab 60%.

4. Adjuvant kev kho mob rau cov kab mob ntev: nthuav daim ntawv thov ntawm cov teebmeem photochemical
650nm qis- siv laser txo cov ntshav viscosity los ntawm photochemical kev ua, pab kho cov kab mob plawv thiab cerebrovascular xws li kub siab thiab hyperlipidemia. Cov kev sim tsiaj tau pom tias laser irradiation tuaj yeem nce qib nitric oxide (NO) hauv cov ntshav los ntawm 30% thiab txhim kho microcirculation.

4, Kev Tswj Xyuas Kev Ruaj Ntseg: Kev tiv thaiv ntau qhov ua kom muaj kev nyab xeeb kev kho mob
Lub siab -cov yam ntxwv ntawm lub zog ntawm laser diodes ua rau muaj kev txwv nruj rau kev tswj hwm kev nyab xeeb, thiab kev tiv thaiv yuav tsum tau tsim los ntawm peb yam: cov khoom tsim, qauv kev ua haujlwm, thiab kev tiv thaiv tus neeg mob

Cov cuab yeej tiv thaiv qib:
Kev saib xyuas hluav taws xob: Kev tshawb pom lub sijhawm tiag tiag ntawm cov zis hluav taws xob, tsis siv neeg kaw thaum sib txawv ntau dua 15%.
Kev tswj qhov kub thiab txias: TEC lub tub yees txias tswj qhov kub thiab txias hauv qab 25℃kom tsis txhob muaj kev puas tsuaj thermal.
Kev sib cais kho qhov muag: siv cov kab hluav taws xob sib cais lossis cov cuab yeej kaw kom tsis txhob muaj teeb meem laser to.
Kev tiv thaiv qib ua haujlwm:
Cov tsom iav tiv thaiv: Cov neeg ua haujlwm yuav tsum hnav tsom iav tshwj xeeb nrog tus nqi OD ntawm Ntau dua lossis sib npaug li 5 txhawm rau lim cov laser tshwj xeeb wavelength.
Kev kuaj tawv nqaij: Ua qhov qis- koob tshuaj ntawm 0.05J / cm ² ua ntej kev kho thawj zaug, soj ntsuam rau 24 teev yam tsis muaj qhov txawv txav, thiab maj mam nce koob.
Lub sijhawm nruab nrab ntawm cov kev kho mob: 24-48 teev rau cov nqaij mos raug mob thiab 72 teev rau cov pob txha thiab pob qij txha kom tsis txhob muaj kev tawm dag zog ntau dhau.
Tus neeg mob qib tiv thaiv:
Kev tshuaj xyuas contraindications: Tsis suav cov neeg mob qog nqaij hlav, cov kab mob photosensitive ntawm daim tawv nqaij, thiab lwm yam.
Kev tiv thaiv hauv zos: Npog qhov chaw rhiab xws li ob lub qhov muag thiab cov thyroid caj pas tiv thaiv kom tsis txhob raug cov ntaub so ntswg.