Medical ECG Monitor Control Board
Tsatanetsatane
Ukadaulo wa PPG wotengera kuwunika kwa kuwala ndiukadaulo waukadaulo womwe ungathe kupeza zambiri zantchito yamtima popanda kuyeza ma sign a bioelectrical.Mfundo yaikulu ndi yakuti pamene mtima ukugunda, padzakhala mafunde othamanga omwe amafalitsidwa kudzera m'mitsempha ya magazi.Mafundewa asintha pang'ono kukula kwa mitsempha yamagazi.Kuwunika kwa PPG kumagwiritsa ntchito kusinthaku kuti apeze kusintha kwa mtima nthawi iliyonse yomwe ukugunda.PPG imagwiritsidwa ntchito poyeza kuchuluka kwa okosijeni m'magazi (SpO2), kotero imatha kupeza kugunda kwa mtima (ie kugunda kwa mtima) data yamunthuyo m'njira yosavuta.
Tekinoloje yowunikira ECG yochokera ku Electrode imadziwika ndi bioelectricity, ndipo kufalikira kwa mtima kumatha kuzindikirika pogwiritsa ntchito maelekitirodi omwe ali pamwamba pa khungu la munthu.Pamtima uliwonse, mtima umakondwera motsatizana ndi pacemaker, atrium, ndi ventricle, pamodzi ndi kusintha kwa machitidwe a maselo osawerengeka a myocardial.Kusintha kwa bioelectric kumeneku kumatchedwa ECG.Pogwira ma siginecha a bioelectric ndiyeno kuwakonza ndi digito, amasinthidwa kukhala Pambuyo pokonza ma siginoloji a digito, amatha kutulutsa chidziwitso cholondola komanso chatsatanetsatane chaumoyo wamtima.
Poyerekeza: teknoloji ya PPG yozikidwa pa kuyang'anira kuwala ndi yophweka komanso yotsika mtengo, koma kulondola kwa deta yomwe imapezeka sipamwamba ndipo mtengo wamtima wokha umapezeka.Komabe, teknoloji yowunikira ECG yopangidwa ndi electrode imakhala yovuta kwambiri, ndipo chizindikiro chopezeka ndi cholondola kwambiri ndipo chimaphatikizapo kuzungulira kwa mtima wonse, kuphatikizapo gulu la PQRST wave, kotero mtengo umakhalanso wapamwamba.Pakuwunika kowoneka bwino kwa ECG, ngati mukufuna kupeza ma sign a ECG olondola kwambiri, chipangizo chodzipereka cha ECG chokhazikika ndichofunikira.Chifukwa cha luso lapamwamba laukadaulo, chip chapamwamba kwambirichi chimagwiritsidwa ntchito makamaka ndi TI yakunja, Yoperekedwa ndi makampani monga ADI, tchipisi tapakhomo tili ndi njira yayitali yopitira.
Tchipisi za TI's ECG-specific ECG zikuphatikiza mndandanda wa ADS129X, kuphatikiza ADS1291 ndi ADS1292 pamapulogalamu ovala.Chip cha ADS129X chili ndi 24-bit ADC yomangidwira, yomwe ili ndi kulondola kwamphamvu kwambiri, koma kuipa kogwiritsa ntchito munthawi yovala ndi: kukula kwa phukusi la chip ndi lalikulu, kugwiritsa ntchito mphamvu ndi kwakukulu, ndipo pali zambiri. zigawo zotumphukira.Kuphatikiza apo, magwiridwe antchito a chip ichi muzosonkhanitsa za ECG pogwiritsa ntchito maelekitirodi achitsulo ndi pafupifupi, ndipo kugwiritsa ntchito maelekitirodi achitsulo pazovala zovala sikungapeweke.Vuto lina lalikulu la tchipisi tating'onoting'ono ndikuti mtengo wamtengo wamtengo ndi wokwera kwambiri, makamaka pankhani ya kuchepa kwapakati, zoperekera sizikusowa ndipo mtengo umakhalabe wokwera.
Tchipisi za ECG za ADS zikuphatikiza ADAS1000 ndi AD8232, pomwe AD8232 imakonda kuvala, pomwe ADAS1000 imagwiritsidwa ntchito kwambiri pazida zachipatala zapamwamba.ADAS1000 ili ndi chizindikiro chofanana ndi cha ADS129X, koma mavuto ochulukirapo akuphatikizapo kugwiritsa ntchito mphamvu zambiri, zotumphukira zovuta komanso mitengo yapamwamba ya chip.AD8232 ndiyoyeneranso kuvala pakugwiritsa ntchito mphamvu komanso kukula kwake.Poyerekeza ndi mndandanda wa ADS129X, mtundu wazizindikiro ndi wosiyana kwambiri.Komanso pakugwiritsa ntchito maelekitirodi owuma azitsulo, ma algorithm abwino amafunikiranso.Kuti mugwiritse ntchito maelekitirodi achitsulo pamawonekedwe otha kuvala, kulondola kwa ma siginecha kumakhala pafupifupi ndipo pali kusokonekera, koma ngati kungopeza ma siginecha olondola a kugunda kwa mtima, chip ichi sichake koma chokhutiritsa kotheratu.
