Neural Implant Bona U
Litokomane tse felletseng tsa tekheniki mabapi le prosthesis ea pono ea cortical, ho kenyeletsoa litlhaloso tsa Hardware, liprothokholo tsa khothatso, meralo ea sistimi, le lintlha tsa ts'ebetso.
1. Mehaho ea tsamaiso
1.1 Kakaretso
The See U neural implant system e entsoe ka likarolo tse tharo tse kholo tse sebetsang hammoho ho hapa, ho sebetsa, le ho romella lintlha tse bonoang ka kotloloho ho cortex ea mantlha ea mosebelisi.
Karolo ea kantle
- • Khamera ea CMOS (16MP)
- • Setsi sa tšebetso
- • Betri ea kantle (2500mAh)
- • Mtoaji wa RF
Karolo ea subcutaneous
- • Moamoheli oa RF
- • Sesebelisoa sa lipontšo
- • Betri e kentsoeng
- • Molaoli oa motlakase
Karolo ea Intracortical
- • Safu ya 1024-electrode
- • Substrate inayoweza kubadilika
- • Kiolesura cha Neural
- • Li-sensor tsa impedance
1.2 Phallo ea data
Ho nka setšoantšo
Khamera ea CMOS e hapa liforeimi tse 60 tsa FPS ho 1920x1080. Sensor e nang le kutlo e phahameng (ho fihla ho ISO 6400) e ts'ehetsa ts'ebetso ea khanya e tlase.
Ho sebetsa esale pele
Li-algorithms tsa pono ea khomphutha li sebetsa ho lemoha, ho fetola maemo, le ho fokotsa lerata. Setšoantšo se theotsoe ho 'mapa oa 32x32 ha u ntse u boloka lintlha tsa bohlokoa.
'Mapa oa Retinotopic
Lihokahanyo tsa litšoantšo tsa sebaka li entsoe ka 'mapa ho ea maemong a tšoanang ho cortex ea pono, ho latela mokhatlo oa tlhaho oa V1 retinotopic.
Khouto e susumetsang
Lipaterone tsa pulse tsa motlakase li hlahisoa ka li-parameter tse ntlafalitsoeng (amplitude, frequency, nako) bakeng sa elektrode e 'ngoe le e 'ngoe ho ipapisitsoe le matla a pixel a ts'oanang.
Phetiso ea RF
Lintlha tse kentsoeng li romelloa ho feta 13.56 MHz RF ka letlalo ho ea ho moamoheli o ka tlase ho letlalo, ka latency ea ho qetela e ka tlase ho 50 ms.
Kusisimua kwa neva
Taolo ea li-electrode e sebelisa li-pulses tsa biphasic ho li-microelectrodes, ho khanna li-neuron tse khethehileng le ho hlahisa li-phosphenes tse lemohuoang ke mosebelisi.
2. Litlhaloso tsa Hardware
2.1 Yuniti ea kantle
Khamera
processor
Matla
2.2 Yuniti e kentsoeng
Moamoheli oa RF
Sesebelisoa sa lipontšo
Betri e kentsoeng
Litekanyo tsa 'mele
3. Safu ya Microelectrode
3.1 Litlhaloso tsa Electrode
Litekanyetso tsa Geometri
Lisebelisoa le liaparo
3.2 Litšobotsi tsa motlakase
Khothatso
Polokeho
Tlhokomelo
3.3 Utangamano wa kibayolojia
Karabo ea lisele
PEDOT: Ho roala ha PSS ho fokotsa ho ruruha le maqeba a glial. Lithuto li bonts'a impedance e tsitsitseng bakeng sa lilemo tse fetang 2 ho vivo.
Ho feto-fetoha ha mechine
Flexible polyimide (Young's modulus ~ 2.5 GPa) e theola khatello ea maikutlo holim'a lisele tsa cortical (~ 1 kPa), ho fokotsa ts'oaetso e nyenyane ho tloha ho sisinyeha ha boko.
Ho nyopa
Ethylene oxide (EtO) e boloka thepa le thepa ea motlakase, e netefalitsoeng ho ISO 11135.
4. Ts'ebetso ea lipontšo
4.1 Lipeipi tsa ho sebetsa
Mohato oa 1: Tšoara 'me u tsoele pele
- • Tšoara: Liforeimi tsa RGB 1920x1080 @ 60 FPS
- • Phetoho: RGB → grayscale (boima ba leseli)
- • Ho lekana: Adaptive histogram (CLAHE) bakeng sa phapang
- • Kutoa sauti: Bilateral filter e bolokang mathōko
- • Ho lieha ho fihla: <5 ms
Mohato oa 2: Ho ntšoa ha likarolo
- • Ho fumanoa ha moeli: Kichujio cha viwango vingi vya Sobel
- • Utulivu: 'Mapa oa tlhokomelo ea pono o thehiloeng papisong
- • Karohano: Setšoantšo - mobu o nang le moeli o feto-fetohang
- • Ea pele: Lintho tse tsamaeang li fumana boima bo phahameng
- • Ho lieha ho fihla: <8ms
Mohato oa 3: Ho theola mehlala e bohlale
- • Qeto ea sepheo: 32x32 pixels (1024 lintlha)
- • Mokhoa: Adaptive pooling ho boloka lintlha tsa bohlokoa
- • Boima: Libaka tse bohareng li fumana tharollo e sebetsang haholoanyane
- • Ubungakanani: Maemo a 8 a matla a pixel ka 'ngoe
- • Ho lieha ho fihla: <3ms
Mohato oa 4: 'Mapa oa Retinotopic
- • Fetoha: Likhokahano tsa Cartesian → log-polar
- • Ho holisa Cortical: Boima bo bohareng (fovea)
- • Tekanyetso: Tokiso ea motho ka mong
- • Matšeliso: Ho khopama ha cortical curvature
- • Ho lieha ho fihla: <2ms
Mohato oa 5: Khouto ea Stimulus
- • Ho etsa 'mapa: Uzito wa pikseli → vigezo vya mapigo
- • Ho feto-fetoha ha molumo oa lentsoe: Pulse amplitude le/kapa frequency
- • Nako: Khokahano ea likanale tsohle tse 1024
- • Ntlafatso: Algorithm ea ho ithuta e feto-fetohang
- • Ho lieha ho fihla: <2ms
⚡ Latency ea lipeipi tsa ho qetela: <20ms (ho tloha ho ts'oaroa ho isa ho stimulation)
4.2 Mekhoa ea ho ntlafatsa
Ho ithuta ho ikamahanyang le maemo
Sistimi e sebelisa ho ithuta ka mochini ho hlophisa khothatso ho tsoa ho maikutlo a basebelisi le metrics ea ts'ebetso.
- • Kiotomatiki kwa elektrodi amplitude
- • Ntlafatso ea maikutlo
- • Impedans drift puseletso
- • 'Mapa oa retinotopic o ikhethileng
Bolelele ba motsamao
Phallo ea mahlo le ponelopele ea nakoana e fokotsehile ho salla morao le ho ntlafatsa pono ea ntho e tsamaeang.
- • Likhakanyo tsa lebelo le tataiso
- • Extrapolation ea boemo bo tlang
- • Kulainisha trajectory
- • Bohlokoa ba lintho tse tsamaeang
5. Lipuisano
5.1 Tekanyetso ea data
Litlhaloso tsa RF
Protocol ea puisano
5.2 Kopanya tshireletso
Koetliso
AES-128 bakeng sa data ea nako ea nnete. Likonopo tsa sesebediswa ka seng tse bopilweng ha ho tuma ha o qala. Phetoho ea linotlolo tsa Seboka lihora tse ling le tse ling tse 24.
Netefatso
Phephetso e kopaneng-karabelo lipakeng tsa yuniti ea kantle le ho kengoa, ho thibela ho bapala hape le ho koetela. Nako ea ho qetela ka mor'a metsotso e 5 e sa sebetse.
Tšireletso ea tšitiso
FHSS ho pholletsa le liteishene tse 50, ho sebetsana le ho thulana ka mokhoa o itekanetseng, le mokhoa oa ho khutlela morao bakeng sa tikoloho ea lerata le phahameng la RF.
6. Tsamaiso ea matla
6.1 Ho tjhaja ka sesebediswa
Molao-motheo oa ts'ebetso
Resonant inductive coupling ho 13.56 MHz e fetisetsa matla ka letlalo ho se na lihokelo tsa percutaneous.
- • Fetisetsa khoele: 50 limilimithara bophara, 10 thinya
- • Amohela khoele: 35 limilimithara bophara, 15 thinya
- • Katleho: 60-70% ka lekhalo la 5 mm
- • Matla a fanoeng: 500 mW e tloaelehileng, 1 W max
- • Ho tsamaisana: ± 10 mm lateral mamello
Potoloho ea tsamaiso
PMIC e inehetseng e laola ho tjhaja le ho tsamaisa motlakase ho litsamaiso tsohle tse kentsoeng.
- • Tokiso: Schottky borokho
- • Taolo: Ibhanti 3.6V → 1.8V/3.3V
- • Ho tjhaja: CC/CV e nang le ho felisoa ha othomathike
- • Tshireletso: Overcurrent, overvoltage, mocheso
- • Tlhokomelo: Coulomb counter bakeng sa boemo ba tefiso
6.2 Matlafatso ea matla
Karohano ea tekanyetso ea matla
(60mW)
(45mW)
(30mW)
(15mW)
Mekhoa ea ho sebetsa
Khothatso e tsoelang pele ea 60 FPS, lits'ebetso tsohle li ntse li sebetsa.
30 FPS, ts'ebetso e bobebe, bophelo bo bolelele ba betri.
Stimulation e tima; RF le tlhokomelo ho; ho tsoha kapele.
Nyenyane: oache le tefiso li lemoha feela; likhoeli tsa bophelo.
7. Tšireletseho le biocompatibility
7.1 Maemo le litifikeiti
Utangamano wa kibayolojia
- ISO 10993: Tlhahlobo ea baeloji ea lisebelisoa tsa bongaka
- Sehlopha sa USP sa VI: Teko ea Cytotoxicity
- I-ASTM F756: Lisebelisoa tse kentsoeng
Tšireletseho ea motlakase
- Tlhaloso: IEC 60601-1: Tšireletseho ea thepa ea bongaka
- Tlhaloso: IEC 60601-2-40: Li-neurostimulators
- IEEE C95.1: Meeli ea ho pepeseha ha RF
7.2 Mekhoa ea tšireletso
Tšireletso ea lisebelisoa
- • Moeli oa hajoale: Ts'ebeliso ea li-caps network caps ho 200μA
- • Monyetla o mokhuts'oane: Khaollo e iketsang ka <1ms
- • Mocheso: Ho koala ha mocheso ho 41°C
- • Mohlokomedi: Khutlisetsa ho firmware hang
- • Tšireletso ea matla: Capacitor bakeng sa ho koala ho laoloang
Tšireletso ea software
- • Botšepehi: CRC ho firmware le paramente
- • Meeli ea Stim: Ho netefatsa phetoho e 'ngoe le e' ngoe
- • Lethathamo la liketsahalo: Phoso le nalane e makatsang
- • Mokhoa o bolokehileng: Litlhophiso tsa Conservative
- • Lintlafatso tsa OTA: Sireletsa ka rollback
Tlhokomelo e tsoelang pele
- • Elektroni Z: Samples mong le e mong 100ms
- • Mocheso oa ho kenya: Li-sensor tse 'ne tse ajoang
- • Betri: Phela SOC le SOH
- • RF sehokelo: RSSI le sekhahla sa liphoso
- • Tefiso e kentsoeng: Kiunganishi cha elektrodi
7.3 Teko ea polokeho
Katika vitro
- • Utamaduni wa seli za Neural
- • I-Cytotoxicity
- • Kobo
- • Mokhathala oa mechine
- • Sebopeho sa motlakase
Ka vivo
- • Mehlala ea liphoofolo
- • Karabo ea lisele
- • Liteko tse sebetsang
- • Ho latela nako e telele
- • Histolojia
Tleliniki
- • Ho khoneha
- • Liteko tsa polokeho
- • Katleho
- • Ho latela nako e telele
- • Liketsahalo tse mpe
8. Li-protocol tsa Stimulation
8.1 Mekhahlelo ea khothatso
Sebopeho sa maqhubu
Symmetric biphasic pulses: karolo ea cathodic pele, ebe joale anodic. 50 μs lekhalo la lipakeng tsa pulse bakeng sa ho tsoa ha capacitive. <1% tefiso e se leka-lekaneng ho qoba ho bokellana ha electrochemical.
Mokhahlelo oa Cathodic (stimulating).
- • Boholo: 10–200 μA (tunable)
- • Nako: 100-500 μs
- • Polarity: E mpe
- • Sebopeho: Rectangular
Anodic (ho hlaphoheloa) mohato
- • Amplitude: E tsamaisana le cathodic
- • Nako: E tsamaisana le cathodic
- • Polarity: E ntle
- • Sebopeho: Rectangular
Taolo e matla e nahannoeng
Matla a phosphene a hlophisoa ka litsela tse tharo tse tlatsanang:
Mefuta ea hona joale 10-200 μA; hoo e ka bang logarithmic e nang le khanya e bonoang. Maemo a robeli a ikhethileng bakeng sa katleho.
Sekhahla sa sekhahla sa 50-300 Hz; litefiso tse phahameng li baloa haholoanyane, li na le thuso bakeng sa taolo e ntle ntle le ho fetola hajoale.
100-500 μs; li-pulses tse telele li kenya tefiso e eketsehileng 'me li shebahala li khanyang, li tlanngoe ke polokeho ea electrochemistry.
8.2 Maano a khouto
Khoutu ea sebaka
'Mapa o tobileng ho tloha ho pixel ea setšoantšo ka seng ho ea ho li-electrode tsa eona tse hlophisitsoeng, tse tsamaellanang le sebopeho sa retinotopic cortical.
- • Qeto: 32x32 → 1024 li-electrode
- • Ho holisa Cortical: Setsi se teteaneng
- • Fetoha: Log-polar fovea mohlala
- • Tekanyetso: Tokiso ea motho ka mong
Khoutu ea nakoana
Nako ea ts'usumetso e kenyelletsa ho feta matla-ho sisinyeha, botebo, le matla.
- • Phatloha: Literene tsa ho tsamaisa lintho
- • Sawazisha: Karolo e amanang le libaka
- • Mekhoa ea nako: Likhoutu tsa sebopeho
- • Ho ikamahanya le maemo: Reita lipina tse fapaneng
8.3 Ho ntlafatsa le ho iketsetsa motho ka mong
Tekanyetso ea pele
Libeke tse peli ho isa ho tse 'ne ho beha menyako le libaka tse bolokehileng tsa ts'ebetso sebakeng se seng le se seng:
- Mehato ea ho lemoha (10–50 μA e tloaelehileng)
- Comfort range (100–150 μA e tloaelehileng)
- 'Mapa o ikhethileng oa retinotopic
- Tokiso ea nako ea domain name (reiti, bophara)
- Liteko tse bonolo tsa paterone
Ho ikamahanya le maemo ho sa feleng
Sistimi e ithuta ka nako ho tsoa ho:
- • Kenyelletso ea mosebelisi: Khanya ka letsoho/phapang
- • Katleho ea mosebetsi: Lintlha tsa ho tsamaea le ho tseba
- • Z ho hoholeha: Tokiso e iketsang
- • Sebelisa mekhoa: Tokiso e etsahalang khafetsa
- • Plastiki ya Neural: Phetoho ea nako e telele
Mefuta e khethehileng
Liprofaele tse hahiloeng esale pele bakeng sa tšebeliso e tloaelehileng:
Phapang e phahameng ea bohale, motsamao o tlase
Ho sisinyeha, botebo, le litšitiso
Difahleho, dintho, le matshwao a sebopeho
Phapang ea ho fumana le ho ikamahanya le maemo