Kukonzekera kwa ECG

Wopanga (ECG) amagwiritsidwa ntchito kujambula malingaliro a mtima kwa nthawi yayitali. Imalumikizidwa pakhungu kudzera mu ma elekitikidwe akukunja ndikusintha kukhala chizindikiro chamagetsi chosonkhanitsa. Vesi iliyonse ya cell yopangidwa kunja kwa mtima ili ndi mlandu womwe umagwirizanitsa, womwe umayambitsa pa mtima uliwonse. Imawonekera pakhungu mu mawonekedwe a magetsi am'magetsi, omwe amatha kupezeka ndikukulitsidwa ndi electrocardiogram.

Pofika m'ma 1900, Willem EliJoven adapanga woyamba elecrocardiogram. Dongosolo ndi lochuluka ndipo limafuna anthu ambiri kuti azichitira. Wodwala ayenera kuyika mikono ndi miyendo yake m'malo akuluakulu okhala ndi electrolyte. Zida zowunikira zamasiku ano ndizosavuta kunyamula, kotero kuti odwala amatha kunyamulanso akayenda. ECG yokhala ndi zaka khumi ndi ziwiri yogwiritsa ntchito kunyumba imatha kunyamulidwa m'thumba.

Zilonda za ECG:

Mawu oti "kutsogolo" pa electrocardiogram mu nkhani ino amatanthauza kusiyana kwa magetsi pakati pa electrodes pakati pa ma electrodis, omwe ndi kusiyana kolembedwa ndi chipangizocho. Mwachitsanzo, "kutsogolera_i" voliyumu pakati kumanzere kumanzere kumanzere ndi kumanja. Onse otsogolera_i ndi kutsogolera_ii akutanthauza kuti nthambi. V1-v6 amatanthauza pachifuwa. Kutsata kwa ECG V1 ndi kusiyana pakati pa VC1 Magetsi (voliyumu ya pachifuwa), ndi magetsi a magetsi a chitsogozo), ndi magetsi a chitsogozo cha chitsogozo cha kutsogolera - Dongosolo lokhazikika la ECORD la ECG limaphatikizaponso mfundo zitatu zenizeni komanso mfundo zinayi zochokera. Gome 1 limafotokoza mwachidule magetsi osiyanasiyana omwe amatsogolera (zenizeni komanso zochokera).

Atsogoleri a Inter

Izi ndizotsogolera kwenikweni, zomwe zikuwonetsedwa mu ECG.

Gome 1: Maina otsogolera ndi malo ojambulira ECG.

Chiwerengero cha ECG chikuwonetsedwa mu Chithunzi 1. Axis ya X axis imayimira kukula kwa nthawi. Apa, chilichonse gridi iliyonse (5 mm) imafanana ndi 20 ms. Axis imawonetsa matalikidwe a chizindikiro chogwidwa. Gawo lirilonse (5 mm) pa y axis imafanana ndi 0,5 mv. (10mm / mv ndi 25mm / s)

Chithunzi 1: Chiwonetsero cha ECG ENGFT.

Mawonekedwe a ECG:

Gawo loyamba la kapangidwe ka ECG limaphatikizapo kumvetsetsa mitundu ya zizindikiro zomwe zimafunikira kuti zipezeke. Chizindikiro cha electrocardiogram chimaphatikizapo magetsi otsika kwambiri mu kukondera kwambiri komanso phokoso. Chithunzi 2 chikuwonetsa mawonekedwe a chizindikiro cha ECG. Pali malo okwera m'dongosolo chifukwa cha voliyo ya theka la theka la ma electrodes opangidwa ndi ma elekitirodi. Ag / Agcl (Chilsiliva-Silidide) ndi electrode yofala kwambiri mu dongosolo la electrocardiogram, ndipo magetsi ake ali ndi mphamvu yamphamvu kwambiri. + - 300mv. Chizindikiro choyembekezekadi ndi +/- 0.5mv opambana pa electrode yolowera. Kuphatikiza apo, dongosololi lidzatsekanso phokoso la 50 / 60Hz kuchokera ku mzere wamagetsi kuti apange chizindikiro chodziwika bwino. Matalikidwe a mphamvu yamphamvu ikhoza kukhala yayikulu kwambiri ndipo imafunikira kutsukidwa.

Chithunzi 2: Makhalidwe a chizindikiro cha ECG kuti apezeke.

Kupeza kwa ECG

Makina a Analog Front-kumapeto ndi gawo lofunikira la dongosolo la ECG chifukwa likufunika kusiyanitsa pakati pa phokoso komanso chizindikiro chomwe akufuna (matalikidwe ndi ochepa). Madera a Analog Front-Track-kumapeto kwake akuphatikizanso muyeso woyezera kuti muchepetse chizindikirocho mosiyanasiyana. Myeso woyimitsidwa amagwira ntchito ku +/- 5v ndipo nthawi zambiri amagwiritsidwa ntchito kuwonjezera kuchuluka kwa magetsi. Kuyeza komwe kumayambitsa kuyenera kukhala ndi malo osokoneza bongo chifukwa kugwedeza khungu kumatha kukhala kwakukulu kwambiri. APP APE ndiyofunikira pakusintha kwa electrocardiogram. Chizindikiro cha chizindikiro cha ECG chimaphatikizapo miyeso yoyeserera, zosefera (zomwe zitha kukhazikitsidwa ndi ma APP) ndi ADC.