Asayansi apanga chipangizo chatsopano cha e-tattoo (e-tattoo) kuti chiwunikire momwe mtima umagwirira ntchito. Chipangizochi chimatha kuyeza ECG, SCG (seismocardiogram) ndi nthawi yamtima wamtima molondola komanso mosalekeza kwa nthawi yayitali kuti iwunikire. magazi kukakamiza.
Matenda a mtima ndi omwe amafa kwambiri padziko lonse lapansi. Kuwunika Kugwira ntchito kwa mtima wathu kungathandize kwambiri kupewa matenda a mtima. Mayeso a ECG (electrocardiogram) amayesa mphamvu zamagetsi zamtima wathu poyesa kugunda kwa mtima ndi kamvekedwe ka mtima kutiuza ngati mtima wathu ukugwira ntchito bwino. Kuyeza kwina kotchedwa SCG (seismocardiography) ndi njira ya accelerometer sensor-based njira yomwe ikugwiritsidwa ntchito pojambula kugwedezeka kwamtima kwamtima poyesa kugwedezeka kwa chifuwa komwe kumachitika chifukwa cha kugunda kwa mtima. SCG ikupeza kufunikira kwachipatala monga njira yowonjezera pamodzi ndi ECG kuyang'anira ndi kutsimikizira kusokonezeka kwa mtima ndi kulondola komanso kudalirika.
Zida zovala ngati zolimbitsa thupi komanso zolondolera zaumoyo tsopano ndi njira yodalirika komanso yotchuka yowunikira thanzi lathu. Poyang'anira ntchito ya mtima, pali zida zofewa zochepa zomwe zimayezera ECG. Komabe, masensa a SCG omwe akupezeka masiku ano amachokera pa ma accelerometer olimba kapena nembanemba osatambasuka zomwe zimawapangitsa kukhala ochulukirapo, osatheka komanso osamasuka kuvala.
Mu kafukufuku watsopano wofalitsidwa pa May 21 mu Sayansi Yapamwamba, ofufuza amafotokoza za chipangizo chatsopano chomwe chimatha kuyikidwa pachifuwa (chomwe chimatchedwa kuti e-tattoo) ndikuwunika momwe mtima umagwirira ntchito poyeza ECG, SCG ndi nthawi yamtima. Chipangizo chapaderachi ndi ultrathin, chopepuka, chotambasulidwa ndipo chimatha kuikidwa pamtima popanda kufunikira tepi kwa nthawi yayitali popanda kupweteka kapena kusamva bwino. Chipangizocho chimapangidwa ndi mauna a serpentine a mapepala omwe amapezeka pamalonda a piezoelectric polima otchedwa polyvinylidene fluoride pogwiritsa ntchito njira yosavuta, yopangira ndalama. Polima iyi ili ndi chinthu chapadera chopangira magetsi poyankha kupsinjika kwamakina.
Kuti muwongolere chipangizochi, njira yolumikizira zithunzi za 3D imawonetsa kusuntha kwa chifuwa chochokera ku kupuma ndi kusuntha kwa mtima. Izi zimathandiza kupeza malo abwino kwambiri odziwira kugwedezeka pachifuwa kuti muyike chipangizocho. Sensa yofewa ya SCG imaphatikizidwa ndi maelekitirodi agolide otambasuka pachida chimodzi chokha ndikupanga chipangizo chapawiri chomwe chimatha kuyeza ECG ndi SCG pogwiritsa ntchito electro- ndi acoustic cardiovascular sensing (EMAC). ECG imagwiritsidwa ntchito nthawi zonse kuyang'anira mtima wa munthu, koma ikaphatikizidwa ndi zolemba za zizindikiro za SCG, kulondola kwake kumalimbikitsidwa. Ndipo, zikuwoneka kuti nthawi ya systolic ili ndi kulumikizana kwamphamvu ndi kuthamanga kwa magazi, motero kuthamanga kwa magazi kukhoza kuyerekezedwa pogwiritsa ntchito chipangizochi. Kulumikizana kwakukulu kunawoneka pakati pa nthawi ya systolic ndi kuthamanga kwa magazi kwa systolic / diastolic. Foni yamakono imagwiritsa ntchito chipangizochi kutali.
Chipangizo chatsopano chokwera pachifuwa chomwe chikufotokozedwa mu phunziro lamakono chimapereka njira yosavuta yowunika kuthamanga kwa magazi mosalekeza komanso mosasokoneza. Chipangizochi ndi ultrathin, ultralight, soft, 100 peresenti yotambasuka mechano-acoustic sensor yomwe imakhala ndi mphamvu zambiri ndipo imatha kupangidwa mosavuta. Zovala zotere zomwe zimatha kuvala kuyang'anira magwiridwe antchito amtima popanda kupita kwa dokotala zitha kukhala zolimbikitsa kupewa matenda amtima.
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Kasupe (s)
Ha T. et al. 2019 Chest-Laminated Ultrathin and Stretchable E-tattoo for Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals. Sayansi Yapamwamba. https://doi.org/10.1002/advs.201900290
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