Mfundo yoyezera
SpO2 plethysmogram muyeso amagwiritsidwa ntchito kuti adziwe kuchuluka kwa okosijeni wa hemoglobin mu
magazi otsika.SpO2 parameter imathanso kupereka chizindikiro cha kugunda kwa mtima ndi mphamvu ya kugunda.Kodi SpO2
parameter imagwira ntchito
SpO2 ndi muyeso wosasokoneza wa kuchuluka kwa okosijeni wogwira ntchito.
Kuchuluka kwa okosijeni kumayesedwa ndi njira yotchedwapulse oximetery.Ndi mosalekeza, osasokoneza
Njira yotengera mayamwidwe osiyanasiyana a hemoglobin ndi oxyhemoglobin (otchedwa
mfundo ya spectrophotometer).Imayesa kuchuluka kwa kuwala, kutumizidwa kuchokera kumagwero owunikira mbali imodzi ya sensa,
imafalikira kudzera m'minofu ya odwala (monga chala kapena chala), kwa wolandira mbali inayo.
Mafunde a sensor kuyeza ndi 660nm kwa LED yofiyira ndi 940nm ya infrared LED.
Mphamvu yochuluka ya kuwala kwa LED ndi 4mw.
Kuchuluka kwa kuwala komwe kumaperekedwa kumadalira zinthu zambiri, zambiri zomwe zimakhala zosasintha.Komabe, imodzi mwa
zinthu izi, magazi amayenda mu mitsempha, zimasiyanasiyana ndi nthawi, chifukwa pulsating.Poyesa kuwala
mayamwidwe pa pulsation, n'zotheka kupeza mpweya machulukitsidwe wa magazi ochepa.Kuzindikira
pulsation imapereka mawonekedwe a PLETH, chizindikiro cha pulse ndi mphamvu ya kugunda.
Mtengo wa SpO2, mtengo wa PR, mphamvu yakugunda ndi mawonekedwe a PLETH amatha kuwonetsedwa pazenera lalikulu.
Njira Zoyezera
Sensor kusankha kwaKuyeza kwa SpO2zimatengera zaka za wodwalayo.Kwa wodwala wamkulu, mungasankhe
kachipangizo chala wamkulu;kwa mwana wodwala, mukhoza kusankha mwana dzanja kapena chala kachipangizo.Chala SpO2
sensor ndi chala chala chokhala ndi magawo awiri.Ma LED amayikidwa mu gawo limodzi ndipo photodetector ndi
aikidwa mu gawo lina.
Chonde tsatirani masitepe ndi chithunzi 6- 1 pansipa kuti mugwiritse ntchito chala chachikulu cha SpO2:
Lowetsani cholumikizira cha sensa ku socket ya Oximeter's SpO2.
Yatsani zowonera.Chophimba cha LCD chidzawonetsa chiwonetsero chazithunzi.Gwirizanitsani sensor ku a
malo oyenera a chala cha wodwalayo.Kuwerenga kudzawonetsedwa pazithunzi za LED pakapita nthawi.
Onetsetsani kuti mwayika sensa ya SpO2 oh chala m'njira yoyenera.Gawo la LED la sensor liyenera
khalani kumbuyo kwa dzanja la wodwalayo ndi gawo la photodetector mkati.Onetsetsani kuti mwalowetsa chala
mpaka kuya koyenera mu sensa kuti chikhadabo chikhale chosiyana ndi kuwala kochokera ku sensa.
Kuti mupeze zotsatira zolondola, chonde werengani deta mpaka sensa itayikidwa pang'onopang'ono.Kuwerenga sikungakhale
molondola pamene sensa kapena wodwala ali mov
Nthawi yotumiza: Oct-09-2022