Posachedwapa, pulse oximetry (Chithunzi cha SpO2) yalandira chidwi chochulukirapo kuchokera kwa anthu chifukwa madotolo ena amalimbikitsa kuti odwala omwe ali ndi COVID-19 aziwunika momwe amachitira ndi SpO2 kunyumba.Chifukwa chake, ndizomveka kuti anthu ambiri azidabwa "Kodi SpO2?"kwa nthawi yoyamba.Osadandaula, chonde werengani ndipo tidzakuwongolerani zomwe SpO2 ili ndi momwe mungayesere.
SpO2 imayimira magazi a oxygen saturation.Akuluakulu athanzi nthawi zambiri amakhala ndi 95% -99% kudzaza kwa magazi, ndipo kuwerenga kulikonse pansi pa 89% nthawi zambiri kumayambitsa nkhawa.
A pulse oximeter amagwiritsa ntchito chipangizo chotchedwa pulse oximeter kuyeza kuchuluka kwa okosijeni m'maselo ofiira a magazi.Chipangizocho chidzawonetsa anuChithunzi cha SpO2monga peresenti.Anthu omwe ali ndi matenda a m'mapapo monga matenda osachiritsika a m'mapapo (COPD), mphumu kapena chibayo, kapena anthu omwe amasiya kupuma kwakanthawi akagona (apnea) amatha kukhala ndi milingo yotsika ya SpO2.Pulse oximetry imatha kupereka chenjezo loyambirira pamavuto ambiri okhudzana ndi mapapo, ndichifukwa chake asing'anga ena amalangiza kuti odwala awo a COVID-19 aziwunika nthawi zonse SpO2 yawo.Nthawi zambiri, madokotala nthawi zambiri amayesa SpO2 mwa odwala panthawi ya mayeso osavuta, chifukwa iyi ndi njira yachangu komanso yosavuta yodziwira matenda omwe angakhalepo kapena kuletsa matenda ena.
Ngakhale kuti kuyambira m’zaka za m’ma 1860 zadziwika kuti hemoglobini ndi mbali ya magazi imene imatumiza mpweya ku thupi lonse, patenga zaka 70 kuti chidziŵitso chimenechi chigwiritsidwe ntchito mwachindunji m’thupi la munthu.Mu 1939, Karl Matthes adapanga mpainiya wamakono a pulse oximeters.Anapanga chipangizo chomwe chimagwiritsa ntchito kuwala kofiira ndi infrared kuti aziyesa mosalekeza kuchuluka kwa okosijeni m'khutu la munthu.Panthawi ya nkhondo yachiwiri ya padziko lonse, Glenn Millikan adapanga njira yoyamba yogwiritsira ntchito teknolojiyi.Pofuna kuthetsa vuto la kuzimitsa kwa magetsi kwa woyendetsa ndege panthawi yoyendetsa ndege pamtunda wapamwamba, analumikiza khutu la oximeter (mawu omwe adapanga) ku dongosolo lomwe limapereka mpweya mwachindunji ku chigoba cha woyendetsa ndege pamene kuwerenga kwa okosijeni kumatsika kwambiri .
Nihon Kohden's bioengineer Takuo Aoyagi adapanga oximeter yeniyeni yeniyeni mu 1972, pomwe amayesa kugwiritsa ntchito oximeter yamakutu kuti ayang'ane kusungunuka kwa utoto kuti ayeze kutulutsa kwa mtima.Poyesa kupeza njira yothanirana ndi zizindikiro za zizindikiro zomwe zimachitika chifukwa cha kugunda kwa mutuwo, adazindikira kuti phokoso lomwe limayambitsidwa ndi phokosolo linayamba chifukwa cha kusintha kwa magazi.Atatha zaka zingapo akugwira ntchito, adatha kupanga chipangizo chokhala ndi mafunde awiri omwe amagwiritsa ntchito kusintha kwa magazi kuti athe kuyeza bwino kwambiri momwe mpweya umayamwa m'magazi.Susumu Nakajima adagwiritsa ntchito ukadaulo uwu kuti apange mtundu woyamba wachipatala womwe ulipo, ndipo adayamba kuyesa odwala mu 1975. Sizinafike mpaka kumayambiriro kwa zaka za m'ma 1980 pomwe Biox adatulutsa oximeter yoyamba yochita bwino pamalonda pamsika wosamalira kupuma.Pofika chaka cha 1982, Biox adalandira malipoti oti zida zawo zidagwiritsidwa ntchito kuyeza kuchuluka kwa okosijeni m'magazi a odwala omwe ali ndi vuto la opaleshoni panthawi ya opaleshoni.Kampaniyo idayamba ntchito mwachangu ndikuyamba kupanga zinthu zomwe zidapangidwira akatswiri ogonetsa.Kuthekera kwa kuyeza kwa SpO2 panthawi ya opaleshoni kunazindikirika mwachangu.Mu 1986, American Society of Anesthesiologists inatengera intraoperative pulse oximetry monga gawo la chisamaliro chake.Ndichitukuko ichi, ma pulse oximeters akhala akugwiritsidwa ntchito kwambiri m'madipatimenti ena azachipatala, makamaka pambuyo pa kutulutsidwa kwa oximeter yoyamba yodzikwanira yokha ya chala mu 1995.
Nthawi zambiri, akatswiri azachipatala amatha kugwiritsa ntchito mitundu itatu ya zida kuti ayezedweChithunzi cha SpO2za wodwala: ntchito zambiri kapena ma parameter ambiri, kuwunika kwa odwala, pafupi ndi bedi kapena kugunda kwamanja kwa oximeter kapena chala chala.Mitundu iwiri yoyambirira ya oyang'anira imatha kuyeza odwala mosalekeza, ndipo nthawi zambiri imatha kuwonetsa kapena kusindikiza chithunzi cha kusintha kwa mpweya wa okosijeni pakapita nthawi.Malo-cheke oximeters makamaka ntchito kujambula chithunzithunzi cha machulukitsidwe wa wodwalayo pa nthawi yeniyeni, choncho makamaka ntchito kuyezetsa m'zipatala kapena maofesi madokotala.
Nthawi yotumiza: Apr-02-2021