Maqalka Neural Eeg U
Dukumeenti farsamo oo buuxa oo ku saabsan sanaaciga indhaha, oo ay ku jiraan qeexida qalabka, borotokoolka kicinta, qaab dhismeedka nidaamka, iyo qoraalada hirgelinta.
1. Nashqada nidaamka
1.1 Dulmar
Nidaamka maqaar-galaha neerfaha ee See U waxa uu ka kooban yahay saddex qaybood oo waaweyn oo ka wada shaqeeya qabashada, hab-socodka, iyo u soo dirida macluumaadka muuqaalka si toos ah kiliyaha aragga aasaasiga ah ee isticmaalaha.
Qayb dibadda ah
- • Kamarada CMOS (16MP)
- • Qaybta farsamaynta
- • Batari dibadda ah (2500mAh)
- • gudbiyaha RF
Qayb ka mid ah maqaarka hoostiisa
- • qaataha RF
- • processor signal
- • baytariga la rakibi karo
- • Kontoroolka korantada
Qayb intracortical
- • Safu ya 1024-electrode
- • Substrate dabacsan
- • Isku xirka neerfaha
- • Dareemayaasha impedance
1.2 socodka xogta
Sawir qaadista
Kamarada CMOS waxay soo qabataa 60 FPS oo fiim ah 1920x1080. Dareemka dareenka sare (ilaa ISO 6400) wuxuu taageeraa hawlgalka iftiinka hooseeya.
Horudhac u samaynta
Algorithms-aragga kombuyuutarku waxay adeegsadaan ogaanshaha geesaha, isbarbardhigga la qabsiga, iyo dhimista qaylada. Sawirka waxaa hoos loo dhigay khariidad 32x32 iyadoo la ilaalinayo macluumaadka muhiimka ah.
Khariidaynta retinotopic
Isku-dubbaridka sawirka meel bannaan ayaa loo habeeyey boosaska u dhigma ee kortex muuqaal ah, iyadoo la raacayo ururka V1 retinotopic ee dabiiciga ah.
Codaynta kicinta
Qaababka garaaca korantada waxaa lagu soo saaraa cabirro la wanaajiyey (ballaaran, inta jeer, muddada) koronto kasta oo ku saleysan xoojinta pixel u dhigma.
gudbinta RF
Xogta qarsoon waxaa loo diraa in ka badan 13.56 MHz RF iyada oo loo sii marayo maqaarka ilaa qaataha ka hooseeya, oo leh dhamaadka-ilaa-dhamaadka ka hooseeya 50 ms.
Kicinta neerfaha
Kantaroolaha korantada ayaa quseeya garaaca wadnaha laba-cirifoodka ah microelectrodes, kaxaynta neurons gaar ah iyo soo saarida phosphenes uu garto isticmaaluhu.
2. Tilmaamaha qalabka
2.1 Cutubka dibadda
Kamarada
Kichakataji
Awood
2.2 Cutub la tallaali karo
qaataha RF
processor signal
baytariga la rakibi karo
Cabirka jirka
3. Safu ya Microelectrode
3.1 Tilmaamaha Electrode
Halbeegyada joomatari
Qalabka iyo dahaarka
3.2 Tilmaamaha korantada
Kicinta
Badbaadada
Kormeerka
3.3 Waafaqid noole
Jawaabta unugyada
PEDOT: Dahaarka PSS wuxuu yareeyaa bararka iyo nabarrada glial. Daraasaduhu waxay muujinayaan xannibaad deggan in ka badan 2 sano gudaha vivo.
Dabacsanaanta makaanikada
Polyimide dabacsan (Dhallinyarada 2.5 GPa) waxay hoos u dhigtaa walbahaarka unugyada kortikal (~ 1 kPa), taasoo yaraynaysa dhaawac-yar oo ka yimaada dhaqdhaqaaqa maskaxda.
Nadiifinta
Ethylene oxide (EtO) waxay ilaalisaa agabka iyo guryaha korantada, oo la ansixiyay ISO 11135.
4. Habaynta calaamadaha
4.1 Habaynta dhuumaha
Talaabada 1: Qabo oo horudhac
- • Qabso: Xirmooyinka RGB 1920x1080 @ 60 FPS
- • Beddelka: RGB → miisaan cawl (miisaanka iftiinka)
- • Siman: Histogram-ka la qabsiga (CLAH) ee isbarbardhigga
- • Diidmada: shaandhaynta labada geesood ee ilaalinta geesaha
- • Kuchelewa: <5 ms
Talaabada 2: Soo saarista sifada
- • ogaanshaha cirifka: Shaandheeyaha cabbirka badan ee Sobel
- • Saliida: Khariidad fiiro gaar ah oo muuqaal ku salaysan
- • Qaybinta: Jaantus-Gool leh marinka la qabsiga
- • Mudnaanta: Walxaha dhaqaaqa waxay helayaan miisaan sare
- • Kuchelewa: <8ms
Tallaabada 3: Hoos u dhigista smart
- • Xallinta yoolka: 32x32 pixels (1024 dhibcood)
- • Habka: La qabsiga la qabsiga haynta xogta muhiimka ah
- • Miisaanka: Gobollada dhexe waxay heleen xal wax ku ool ah
- • Tirada: 8 heerarka xoojinta halkii pixel
- • Kuchelewa: <3ms
Talaabada 4: Mapping Retinotopic
- • Beddel: Cartesian → isku duwayaasha log-polar
- • Weyneynta kortikal: Cufnaanta dhexe ee sare (fovea)
- • Urekebishaji: Hagaajinta isticmaale kasta
- • Magdhawga: Qallooca kortical
- • Kuchelewa: <2ms
Tallaabada 5: Codaynta kicinta
- • Khariidaynta: Pixel xoojinta → cabbirrada garaaca wadnaha
- • Habaynta: Balaadhan garaaca garaaca iyo/ama inta jeer
- • Waqtiga: Isku-dubarid dhammaan 1024 kanaal
- • Hagaajinta: Algorithm barashada la qabsiga
- • Kuchelewa: <2ms
⚡ Dhamaadka-ilaa-dhamaadka dhuumaha dhuumaha: <20ms (laga bilaabo qabashada ilaa kicinta)
4.2 Algorithms-ka wanaajinta
Barashada la qabsiga
Nidaamku wuxuu isticmaalaa barashada mashiinka si uu u habeeyo kicinta jawaab celinta isticmaalaha iyo cabbirada waxqabadka.
- • Baaxadda otomaatigga ah ee halkii-electrode
- • Daawaynta isbarbardhigga fahamka
- • Magdhawga leexleexda
- • Khariidadda retintoopic ee shakhsi ahaaneed
Saadaasha dhaqdhaqaaqa
Socodka indhaha iyo saadaasha ku meel gaadhka ah waxay gooyaan dib u dhaca garaadka waxayna wanaajiyaan aragtida shay-dhaqdhaqaaqa.
- • Qiyaasta xawaaraha iyo jihada
- • Ka saarista booska mustaqbalka
- • Silcin dhab ah
- • Mudnaanta alaabta guuraysa
5. Isgaarsiinta
5.1 Xogta telemetry
Tilmaamaha RF
Hab maamuuska isgaarsiinta
5.2 Amniga isku xirka
Sirin
AES-128 ee xogta waqtiga-dhabta ah. Furayaasha qalab kasta waxa la sameeyay isku xidhka kowaad. Wareega furaha fadhiga 24-kii saacba.
Xaqiijinta
Loolanka labada dhinac ah–jawaab u dhexeeya unugga dibadda iyo tallaalka, xannibista ku celiska iyo afduubka. Wakhtiga fadhiga ka dib 5 daqiiqo shaqo la'aan.
Ilaalinta faragelinta
FHSS oo dhan 50 kanaal, maaraynta isku dhaca tooska ah, iyo qaabka dib u dhaca ee jawiga buuqa RF-sare.
6. Maamulka awooda
6.1 Dallacaadda kicinta
Mabda'a hawlgalka
Isku xirka soo noqnoqda ee 13.56 MHz wuxuu awooda ku wareejiyaa maqaarka iyada oo aan lahayn xidhidhiyeyaal dillaacsan.
- • Gudbi gariiradda: Dhexroor 50 mm, 10 rodol
- • Qaado gariiradda: Dhexroorka 35 mm, 15 rogo
- • Waxtarka: 60-70% ee farqiga 5 mm
- • Awood la keenay: 500mW caadiga ah, 1W ugu badnaan
- • Toosin: ± 10 mm dulqaad dambe
wareegga maamulka
PMIC u go'an ayaa maamusha ku dallacaadda iyo dariiqa korantada ee dhammaan nidaamyada hoose ee la geliyo.
- • Sixitaan: Buundada Schottky
- • Xeerka: Ibhanti 3.6V → 1.8V/3.3V
- • Dallacaadda: CC/CV oo si toos ah u joojinaysa
- • Ilaalinta: Dul-joogta, korantada xad-dhaafka ah, heerkulka
- • Kormeerka: Kaunta ya Coulomb kwa hali ya malipo
6.2 Kobcinta awoodda
Kala qaybsanaanta miisaaniyada awoodda
(60mW)
(45mW)
(30mW)
(15mW)
Hababka shaqada
Kicinta 60 FPS ee joogtada ah, dhammaan nidaamyada hoose waa daaran yahay.
30 FPS, farsamaynta fudud, nolosha batteriga oo dheer.
Kicinta ayaa demisay; RF iyo la socodka; degdeg u toosid.
Inta ugu yar: saacada iyo lacagta la ogaado oo kaliya; bilaha nolosha.
7. Badbaadada iyo noole ku habboonaanta
7.1 Heerarka iyo shahaadooyinka
La jaanqaadka noole
- ISO 10993: Qiimaynta bayoolojiga ee aaladaha caafimaadka
- USP Fasalka VI: Baaritaanka cytotoxicity
- I-ASTM F756: Walxaha la tallaali karo
Badbaadada korantada
- I-IEC 60601-1: Badbaadada qalabka caafimaadka
- I-IEC 60601-2-40: Ama-Neurostimulators
- IEEE C95.1: Xadka soo-gaadhista RF
7.2 Hababka badbaadada
Ilaalinta qalabka
- • Xadka hadda jira: Shabakadda u hoggaansanaanta waxay soo saartaa 200μA
- • Ogaanshaha wareegga gaaban: Goynta tooska ah ee <1ms
- • Heerkulka: Deminta kulaylka 41°C
- • Ilaalo: Dib u dajin qalabka firmware-ka
- • Quwada tamarta: Capacitor xirida la xakameeyey
Ilaalinta software
- • Daacadnimo: CRC on firmware iyo xuduudaha
- • Xadka kicinta: Xaqiijinta isbeddel kasta
- • Diiwaanka dhacdada: Cilad iyo taariikh xumo
- • Qaab nabdoon: Diidmada muxaafidka ah
- • Cusboonaysiinta OTA: Ku xafid dib-u-celinta
Kormeer joogto ah
- • Elektroni Z: Muunad kasta 100ms
- • Ku dheji heerkulka: Afar dareemaha la qaybiyey
- • Betri: Live SOC iyo SOH
- • isku xirka RF: RSSI iyo heerka qaladka
- • Lacag la isku duray: Isku-duwaha Per-electrode
7.3 Tijaabada badbaadada
Katika vitro
- • Dhaqanka unugyada neerfaha
- • I-Cytotoxicity
- • Daxalka
- • Daalka makaanikada
- • Tilmaamaha korantada
Katika vivo
- • Noocyada xayawaanka
- • Jawaabta unugyada
- • Tijaabooyin shaqaynaya
- • Dabagal wakhti dheer ah
- • Histolojia
Kliniki
- • Suurtogalnimada
- • Tijaabooyinka badbaadada
- • Waxtarka
- • Dabagal wakhti dheer ah
- • Dhacdooyinka xunxun
8. Baratakoolka kicinta
8.1 Qiyaasta kicinta
Umbo la wimbi
Calaamadaha garaaca laba-geesoodka ah: wajiga cathodic marka hore, ka dibna anodic. 50 μs farqiga u dhexeeya garaaca wadnaha ee dareeraha awoodda leh. <1% waxay ku dalacaysaa dheelitir la'aanta si looga fogaado koronto kiimikaad.
Cathodic (kicinta) wajiga
- • Balaadhan: 10-200 μA (la jaan qaadi kara)
- • Muddada: 100-500 μs
- • Polarity: Hasi
- • Qaabka: leydi
Anodic (kabashada) wajiga
- • Balaadhan: Ku habboon cathodic
- • Muddada: Ku habboon cathodic
- • Polarity: togan
- • Qaabka: leydi
Xakamaynta xoogga la dareemay
Awoodda phosphene waxaa loo habeeyey saddex siyaabood oo is dhammaystir ah:
Kala duwanaanshaha hadda jira 10-200 μA; qiyaastii logarithmic oo leh dhalaal la dareemay. Siddeed heerar kala duwan oo hufnaan ah.
Heerka garaaca garaaca 50-300 Hz; Heerarka sare ayaa si fiican u akhriya, faa'iido u leh xakamaynta ganaaxa iyada oo aan dib loo habeynin hadda.
100-500 μs; garaaca garaaca dheer ayaa duri lacag badan waxayna u muuqdaan kuwo ifaya, oo ku xidhan badbaadada korantada.
8.2 Xeeladaha codaynta
Codaynta meel bannaan
Khariidadda tooska ah ee pixel-ka sawir kasta ilaa korantada habaysan, oo la socota qaabka kortikal ee retinotopic.
- • Qaraarka: 32x32 → elektroni 1024
- • Weyneynta kortikal: Xarunta cufan
- • Beddel: Log-polar fovea mfano
- • Urekebishaji: Hagaajinta isticmaale kasta
Codayn ku meel gaar ah
Waqtiga kicinta ayaa ka dhigaya wax ka badan xoojinta-dhaqdhaqaaq, qoto dheer, iyo salience.
- • dilaacday: Tareenada dhaqaaqa alaabta
- • Isku xidh: Marxaladda qaraabada ee guud ahaan goobaha
- • Qaababka waqtiga: Koodhadhka qoraalka
- • La qabsiga heerka: Qiimaynta raadadka isbarbardhigga
8.3 Hagaajinta iyo shakhsiyaynta
Qalabaynta bilowga ah
Laba ilaa afar toddobaad si loo dejiyo marinnada iyo goobaha shaqada ee badbaadada ah goob kasta:
- Heerarka aragtida (10-50 μA caadiga ah)
- Kala duwanaanshaha raaxada (100-150 μA caadiga ah)
- Khariidadda retintoopic gaarka ah
- Hagaajinta wakhtiga-qaybta (qiimaha, ballaca)
- Tijaabooyin qaab fudud
La qabsiga joogtada ah
Nidaamku wuxuu wax ka bartaa muddo ka dib:
- • Gelitaanka isticmaalaha: Iftiinka/isbarbardhigga gacanta
- • Guul hawsha: Navigation iyo dhibcaha aqoonsiga
- • Z leexin: Sixitaan otomaatik ah
- • Isticmaal qaabab: Hagaajinta muuqaalka soo noqnoqda
- • Balaastii neerfaha: Dib-u-habaynta muddada-dheer
Hababka gaarka ah
Magacyada hore loo dhisay ee isticmaalka guud:
Isbarbardhigga cirifka sare, dhaqdhaqaaq hooseeya
Dhaqdhaqaaq, qoto dheer, iyo caqabado
Wejiyada, walxaha, iyo tilmaamaha qaabka
Kasbashada iyo isbarbardhigga la qabsiga