Lub qhov muag ntawm lub Trachea: Yuav ua li cas ib tug 3.9mm Imaging Module Illuminates tib neeg ua pa Passage
Thaum cov kws kho mob ua pa yuav tsum kuaj xyuas sab hauv ntawm tus neeg mob lub trachea, lawv ntsib qhov chaw nqaim heev thiab muaj kev nkag siab zoo. Lub trachea ntawm tus neeg laus ntsuas kwv yees li 15 txog 20 millimeters hauv txoj kab uas hla - kwv yees li qhov dav ntawm ib qho -yuan npib. Thaum o, qog, lossis txawv teb chaws lub cev ua rau txoj hlab ntsws nqaim, txoj hauv kev rau cov cuab yeej yuav qis dua li 5 millimeters. Kev soj ntsuam thiab cov txheej txheem nyob rau hauv tej qhov chaw kaw cia nyob rau ntawm ib tug slender imaging sojntsuam - tsuas yog 3.9 millimeters inch, tab sis integrating ntau yam technologies nce qib hauv optics, electronics, thiab precision mechanics.
I. Qhov Txwv Qhov Loj: Vim li cas 3.9 millimeters?
3.9 millimeters tsis yog daim duab arbitrary, tab sis qhov kev pom zoo pom muaj nyob ntawm kev sib tshuam ntawm lub cev, kho qhov muag, thiab cov txheej txheem tsim khoom. Anatomically, tus neeg laus lub suab glottis spans kwv yees li 23-25 millimeters ntawm qhov siab tshaj plaws abduction. Txawm li cas los xij, endoscopes xav tau kev tshem tawm kom txaus kom tsis txhob muaj kev ntxhov siab ntawm lub suab. Kev xyaum kho mob tau pom tias qhov 3.9-millimeter sab nraud txoj kab uas hla ua rau qhov zoo tshaj plaws sib npaug ntawm kev nkag mus thiab kev nyab xeeb.
Los ntawm kev xav engineering, 3.9mm txoj kab uas hla yuav tsum muaj tsib yam tseem ceeb: lub lens kho qhov muag, lub ntsej muag lossis daim iav, ib qho duab sensor, plaub lub teeb pom kev zoo ntawm cov hlaws dai, thiab cov hlau tiv thaiv vaj tse. Tam sim no raug txwv tau compressed radial stacking thickness ntawm cov khoom no mus rau 0.2-0.3 hli. Ib qho kev txo qis ntxiv yuav xav tau cov qauv kho qhov muag me me rau lub sensor, ua rau muaj kev poob qis hauv qis -lub teeb kev ua tau zoo vim qhov txo qis pixel photosensitive thaj chaw. Yog li, 3.9 hli sawv cev tsis yog tsuas yog ib qho qauv ntawm kev tsim muaj peev xwm tab sis kuj yog ib theem - tshwj xeeb ciam teb dictated los ntawm lub cev txoj cai.
II. 1/18-Inch Chip: Tsim Lub Nroog ntawm Cov Plua Plav Loj
Ntawm qhov module lub hauv paus ntsiab lus yog cov duab sensor nrog 1/18-inch optical hom. Qhov no txhais mus rau ib kab pheeb ces kaum ntev li ntawm 1.4 millimeters rau lub sensor lub teeb -sensitive cheeb tsam-tsawg dua ib tug-feem kaum qhov luaj li cas ntawm tus qauv xa ntawv stamp. Nyob rau hauv qhov chaw minuscule no, engineers yuav tsum npaj ntau tshaj 80,000 photosensitive units (pixels), txhua sab ntev nyob rau hauv 3 micrometers - sib npaug rau ib feem peb ntawm txoj kab uas hla ntawm tib neeg cov ntshav liab.
Yuav ua li cas cov minuscule pixels zoo ntes lub teeb? Qhov no tso siab rau ob qho tseem ceeb tsim kev tsim kho tshiab. Ua ntej, micro-lens array: txhua pixel yog topped los ntawm ib tug me me convex lens uas converges teeb pom kev zoo rau lub hauv paus photodiode. Qhov thib ob, qhov kev saws me nyuam rov qab - teeb pom kev zoo nkauj, tshem cov hlau thaiv txheej tom qab cov txheej txheem photosensitive kom tshem tawm kev cuam tshuam ntawm lub teeb los ntawm cov neeg siv khoom. Cov thev naus laus zis no ua rau cov pixels tswj tau kwv yees li 60% qhov tseem ceeb ntawm qhov qis dua 3 microns, xa cov teeb liab siv tau - rau - suab nrov piv nyob rau hauv LED teeb pom kev zoo.
III. The Practical Logic of NTSC Standard
Thaum 4K thiab 8K yees duab tau dhau los ua tus qauv hauv cov khoom siv hluav taws xob, qhov kev kho mob no tseem siv NTSC analog TV tus qauv yug hauv xyoo 1953. Qhov kev xaiv zoo li "conservative" no yog qhov kev xav txog kev xav ntawm cov ntawv thov kev kho mob tshwj xeeb.
Lub ntsiab kom zoo dua ntawm NTSC nyob rau hauv nws qhov tsawg kawg nkaus system latency. Analog video signals kis raws li qhov nruam voltage waveforms. Txhua lub thav duab ntes los ntawm cov duab sensor yog tam sim ntawd hloov mus rau hauv qhov sib thooj voltage, ncaj qha tsav lub saib lub cathode ray raj ntawm cable. Cov saw no tshem tawm qhov xav tau ntawm cov ntim digital, compression encoding, lossis caching / decoding. Theoretical latency los ntawm lub teeb ntes mus rau lub vijtsam zaub tuaj yeem tswj tau li ntawm 33 milliseconds (sib npaug rau ib tus ncej). Thaum lub sij hawm endotracheal intubation, cov kws kho mob tso siab rau qhov tiag - lub sij hawm duab los ntsuam xyuas qhov txheeb ze ntawm qhov kev sojntsuam txog lub suab. Qhov sib txawv ntawm 33 milliseconds piv rau 200 milliseconds tuaj yeem txhais tau tias qhov sib txawv ntawm qhov kev ua tiav sai thiab rov sib cuag uas ua rau laryngospasm.
IV. Tus kheej- Teeb pom kev txaus: Lub ntsiab lus ntawm 0 Lux
Nyob rau hauv qhov tsaus ntuj tag, tib neeg lub qhov muag tsis tuaj yeem pom tej yam khoom; ntawm 0 lux illumination, cov koob yees duab tsoos tsim tsuas yog ib lub suab -dub duab. Cov qauv no tau lees tias "tsawg kawg illumination ntawm 0 lux (LED rau)" lub cev txhais tau tias: lub module ua tiav cov duab tag nrho los ntawm nws qhov tsim - nyob rau hauv lub teeb ci, yam tsis muaj kev vam khom rau sab nraud ambient teeb pom kev zoo.
Plaub lub siab -brightness dawb LEDs tau teem rau hauv ib lub nplhaib sib luag nyob ib ncig ntawm lub lens periphery. Qhov kev teeb tsa no txo qis lub kaum sab xis ntawm lub teeb pom kev axis thiab cov duab axis. Nrog rau lub teeb ci nyob ib sab ntawm lub lens, txoj kev teeb pom kev teeb pom kev zoo sib haum nrog txoj kev pom lub teeb pom kev zoo, tiv thaiv cov teeb meem ntawm cov kav dej xws li central overexposure thiab sidewall underexposure. Optical simulation cov ntaub ntawv qhia tias nyob rau hauv ib tug 15 hli - txoj kab uas hla yeeb nkab qauv, lub nplhaib no - nruj illumination txhim khu phab ntsa illumination uniformity ntawm 1: 4 nyob rau hauv ib txwm ib txwm - sab teeb rau 1: 1.8.
V. Lub Hom Phiaj Dual ntawm Lub Tsev Hlau
Lub tsev nyob module siv hlau ntau dua li cov khoom siv hluav taws xob sib zog, uas tau tsav los ntawm ob qho tseem ceeb engineering xav txog. Thawj yog mechanical rigidity. Raws li cov duab module traverses glottis thiab tortuous airways, nws yuav tsum tau tiv thaiv los ntawm anterior cov ntaub so ntswg thiab lateral mucosal compression. Nrog ib tug Young's modulus kwv yees li 60 npaug ntawm cov yas, lub tsev steel ua kom tsis muaj sub-micron txheeb ze hloov chaw ntawm cov khoom siv kho qhov muag nyob rau hauv axial thrusts tshaj 500 g- quab yuam, tiv thaiv cov duab drift los ntawm optical axis deflection.
Qhov thib ob yog thermal tswj. Plaub LEDs ua kom muaj cua sov tseem ceeb thaum lub sijhawm ua haujlwm tas mus li, thaum lub ntsws mucosa yog qhov kub siab heev -rhiab heev -irreversible thermal puas tshwm sim tom qab tsuas yog 5 vib nas this ntawm kev sib cuag ntawm 43℃. Steel lub thermal conductivity (kwv yees li 50 W / m·K) deb tshaj li ntawm engineering plastics (0.2–0.5 W / m·K), ua kom kub hloov ceev ntawm LEDs mus rau qhov kev sojntsuam ze kawg. Thaum tshav kub kub yog dissipated los ntawm cov hlau qauv txuas mus rau lub handheld tswj chav tsev. Kev ntsuas kub ntsuas pom tau tias tom qab 10 feeb ntawm kev ua haujlwm tas li ntawm 25℃chav tsev kub, qhov kub thiab txias ntawm lub module vaj tsev nyob ruaj khov ntawm 5.2 degree, qis dua 10℃txwv teev los ntawm IEC 60601-1 cov qauv.
VI. Los ntawm Diagnostic Tool rau Therapeutic Companion
Tau ntau xyoo, kev ua haujlwm ntawm bronchoscopes raug kaw rau kev soj ntsuam thiab kuaj xyuas- cov kws kho mob "visualized" qhov txhab ua ntej muab cov nqaij mos los yog cov fibers laser los ntawm cov cuab yeej siv rau kev kuaj lossis kho. Nrog rau kev loj hlob ntawm 3.9mm-chav kawm imaging modules, ib qho kev hloov pauv tseem ceeb tseem tab tom ua: lub tshuab duab nws tus kheej tau dhau los ua ib qho tseem ceeb ntawm cov cuab yeej kho mob.
Kev koom ua ke cov duab kos duab nrog cov endotracheal intubation probes ua rau muaj kev sib txuas ntxiv tiag tiag -lub sijhawm xa cov suab paj nruag thiab cov duab hauv cov hlab cua thaum lub sij hawm intubation, hloov cov kev kho qhov muag tsis pom kev rau hauv cov txheej txheem pom. Co- ntim me me siab sensors nrog lub module tso cai rau ib txhij soj ntsuam ntawm cov pa mucosal morphology thiab ntau npaum li cas ntawm tracheal raj cuff siab tiv thaiv lub raj phab ntsa. Qhov kev hloov pauv no los ntawm "pom" mus rau "sensing," thiab los ntawm 'kev kuaj mob' mus rau "kev kho mob," qhia tau hais tias kev siv tshuab pa hauv nruab nrog cev tau hloov kho dua tshiab los ntawm cov ntaub ntawv nkaus xwb- sib sau cov cuab yeej mus rau qhov kev txiav txim siab kho mob txhawb nqa lub davhlau ya nyob twg ua ke kev kuaj mob, saib xyuas, thiab kev cuam tshuam kev ua haujlwm.
Xaus:
Kev hloov pauv thev naus laus zis ntawm 3.9mm imaging module epitomizes tib neeg txoj kev tsis tu ncua hauv kev kov yeej cov kev txwv ntawm lub cev thiab nthuav dav qhov kev nkag siab ntawm thaj tsam ntawm lub microscopic scale. Nws nqa tsis tau tsuas yog ntau pua txhiab tus pixels ntawm cov ntaub ntawv kho qhov muag, tab sis kuj tseem muaj kev txawj ntse ntawm suav tsis txheeb engineers thiab cov kws kho mob uas koom tes hauv kev qhuab qhia los daws cov teeb meem nyuaj. Thaum qhov kev sojntsuam no traverses glottis thiab illuminates carina, nws qhia tsis tau tsuas yog lub anatomical qauv ntawm lub pa, tab sis kuj cov lus nug nyob mus ib txhis ntawm yuav ua li cas technology yuav pab tau lub neej thiab kev noj qab haus huv nrog lub utmost precision.
