Ukulungiswa kwesitayile se-ECG

I-electrocardiogram (i-ECG) isetyenziselwa ukufaka idatha yemeko yentliziyo ngaphezulu kwexesha. Iqhagamshelwe kulusu nge-electrode yangaphandle kwaye iguqulwe yaba yimiqondiso yombane yokuqokelelwa. I-membrane nganye yeseli yenziwe ngaphandle kwentliziyo inentlawulo edibene, eyenza ikhutshiwe ngexesha lokubetha kwentliziyo nganye. Ibonakala kulusu ngohlobo lweempawu ezincinci zombane, ezinokufunyanwa kwaye zikhuliswe yi-electrocardiogram.

Kwangoko i-1900, iWillem Einthove ikhuphe i-elektrocregram yokuqala ye-elektroniki. Le nkqubo ininzi kwaye ifuna abantu abaninzi ukuba baxhaphaza. Isigulana kufuneka sibeke iingalo kunye nemilenze yakhe kwi-electrode ye-electrolyte. Izixhobo zokubeka iliso kwi-ECG ze-ECG zenziwa kwaye kulula ukuthwala, ukuze izigulana zikwazi ukuthwala xa zihamba. I-ECG ekhokelayo ye-ECG yokusetyenziswa ekhaya inokuthwalwa epokothweni.

Iziseko ze-ECG:

Ibinzana elithi "Khokela" kwi-electrocargeregregy kweli nqaku libhekisa kumahluko ndlongolo phakathi kwale elektroni, kulowo umohluko obhalwe sisixhobo. Umzekelo, "ukukhohlisa_i" yivolthi phakathi kwengalo yasekhohlo neyokwenene elektroniki. Zombini ezi zikhokela_i kunye ne-Coullen_i ibhekisele kwilungu zikhokelela. V1-v6 ibhekisa esifubeni ikhokelela. Umkhondo we-ECG TOORK u-V1 ngumahluko phakathi kwe-VC1 voltage (i-voltage ye-elektrode), kunye nevolthi ye-ofisi ye-Cound_i, i-Cound -ii, kwaye ikhokelele_ii. Inkqubo ye-ECG ekhokelayo ye-ECG ekhokelela kwi-ECG ibandakanya amaxabiso asibhozo anesibhozo kwaye amaxabiso amane athatyathwe. Itheyibhile 1 inika inkcazo emfutshane ye-voltages ezahlukeneyo ezikhokelayo (okwenyani kwaye zithathwe).

Amagama akhokelayo Ukubala amanqaku

Esi sisikhokelo sokwenyani, esiboniswe kumkhondo we-ECG.

Itheyibhile 1: Amagama Akhokelayo kunye neendawo zokurekhoda iECG.

I-ecg eqhelekileyo ye-ECG iboniswe kumzobo 1. I-Axis x imele ixesha. Apha, igridi nganye (5 mm) ihambelana ukuya kwi-20 ms. I-Axis ye-y ibonisa i-Alelting yomqondiso ovaliweyo. ICandelo ngalinye (5 mm) kwi-Axis y ihambelana ne-0.5 mv. (10mm / mv kunye ne-25mm / s)

Umzobo 1: I-ECG eqhelekileyo ye-ECG.

Iimpawu ze-ECG:

Inyathelo lokuqala loyilo lwenkqubo ye-ECG ibandakanya ukuqondwa iintlobo zezimpawu ezifuna ukufunyanwa. Umqondiso we-electrocardiogram ubandakanya i-lest-ampling voltage ekhoyo kwi-bias ephezulu kunye nengxolo. Umzobo 2 ubonakalisa iimpawu zomqondiso we-ECG. Kukho i-offeser ephezulu kwinkqubo ngenxa ye-voltage yeseli yeseli eveliswa yi-electrone. I-AG / AGCL (i-sliver-i-sliver yesilivere) yeyona nto ixhaphakileyo kwi-electrode kwinkqubo ye-electrocardiogram, kwaye i-voltage yayo ephezulu ye-offiset yi +/- 300mv. Owona mqondiso ulindelekileyo ngu- +/- 0,5mv oguqulelwayo kwi-electrode. Ukongeza, inkqubo izakuvala i-50 / ye-60hz evela kwingxolo yamandla ukwenza uphawu lwemodi eqhelekileyo. Ingxolo yengxolo yamandla inokuba inkulu kakhulu kwaye kufuneka inyibilike.

Umzobo 2: Iimpawu zomqondiso we-ECG ziya kufunyanwa.

Ukufunyanwa kwe-ECG

Ukuqhubekeka kwangaphambili kwe-ANOLO Inxalenye ebalulekileyo yenkqubo ye-ECG ngoba kufuneka ukwahlula phakathi kwengxolo kunye nomqondiso onqwenelekayo (i-amllibelibe incinci). Isekelo yokuphelisa i-AALOGS yokuphela kwesekelo ibandakanya umlinganiso we-Amplimine ukunciphisa umqondiso kwimodi yesiqhelo. Umlinganiso wemilinganiselo ye-Amplimimi usebenza kwi + /- 5V kwaye ihlala isetyenziselwa ukwandisa uluhlu lwevolthi yokuvota igalelo. Eli nqanaba lokulinganisa kufuneka libe negalelo eliphezulu lokuba ukrokrela ulusu kunokuba lukhulu kakhulu. I-AMP ye-OP iyafuneka ukuqhubekeka kwesibonakaliso sesixhobo se-electrocargom. I-chain yomqondiso yenkqubo yokufumana i-ECG ibandakanya imilinganiselo ye-AMPISE, iifilitha (ezinokuphunyezwa zii-AMPS) kunye nee-ADCs.