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Tikudziwa kuti SpO₂ ndi gawo lofunikira lomwe limawonetsa kupuma kwa thupi komanso ngati mpweya wa okosijeni ndi wabwinobwino, ndipo oximeter ndi chipangizo chomwe chimayang'anira momwe mpweya wa okosijeni m'magazi ulili m'thupi lathu. Oxygen ndiye maziko a ntchito za moyo, hypoxia ndiye gwero la matenda ambiri, ndipo matenda ambiri angayambitsenso kuperewera kwa oxygen. SpO₂otsika kuposa 95% ndi chiwonetsero cha hypoxia yofatsa. Pansi pa 90% ndi hypoxia yoopsa ndipo iyenera kuthandizidwa mwamsanga. Sikuti ndi okalamba okha omwe ali ndi hypoxemia, koma anthu amakono ali ndi nkhawa zambiri zamaganizo ndi ntchito ndi nthawi yopuma. Zolakwika nthawi zambiri zimayambitsa hypoxemia. SpO₂ yotsika kwa nthawi yayitali idzawononga kwambiri thupi la munthu. Choncho, m'pofunika kuyeza SpO₂ m'thupi nthawi zonse, ngakhale njira zodzitetezera zikuchitidwa.

Zikafika ku oximeter, kwa ogwiritsa ntchito kalembedwe kanyumba komanso akatswiri olimbitsa thupi, anthu ambiri amasankha ma oximeter onyamula chala, chifukwa ndi okongola, ophatikizika, osavuta kunyamula, komanso osawerengeka ndi nthawi ndi malo. Zothandiza kwambiri komanso zachangu. Ma oximeter a zala amagwiritsidwanso ntchito m'malo ambiri azachipatala, koma zolondola ndizokwera kwambiri. Chifukwa chake, kuchotsa zolakwika ndi chimodzi mwazinthu zofunikira pakuyezera kolimba kwa oximeter.

Kulondola kwa oximeter kumagwirizana kwambiri ndi mfundo yaukadaulo ya oximeter. Mfundo za mapangidwe a oximeter amakono operekera mayankho pamsika ndizofanana: kugwiritsa ntchito ma LED ofiira, infrared LED ndi mawonekedwe a photodiode a SpO₂ sensor circuit, Kuphatikiza ma LED drive circuit. Pambuyo pa kuwala kofiira ndi kuwala kwa infrared kutumizidwa kudzera pa chala, zimadziwika ndi kayendedwe ka kayendedwe ka ma signal, kenaka amaperekedwa ku ADC module ya single-chip microcomputer kuti apitirize kuwerengera kuchuluka kwa SpO₂. Onse amagwiritsa ntchito zinthu zopepuka zopepuka monga kuwala kofiyira, kuwala kwa infrared LED ndi photodiode kuyeza kufalikira kwa nsonga za m'makutu ndi m'makutu. Komabe, opereka mayankho a oximeter omwe ali ndi miyezo yapamwamba komanso zofunika pa pulogalamuyo amakhala ndi zofunikira zoyeserera. Kuphatikiza pa njira zoyeserera zomwe zatchulidwa pamwambapa, ayenera kugwiritsa ntchito mapulogalamu awoawo komanso zoyeserera zaukadaulo za oximeter. Deta imayerekezedwa ndi oximeter yachipatala.

Oximeter yopangidwa ndi MedLinket yaphunziridwa m'zipatala zoyenerera. Pakafukufuku woyendetsedwa bwino wa machulukitsidwe, SaO₂ ya muyeso wamtunduwu wa 70% mpaka 100% yatsimikiziridwa. Poyerekeza ndi mtengo wa SpO₂ woyezedwa ndi CO-Oximeter, deta yolondola imapezedwa. Cholakwika cha SpO₂ chimayendetsedwa pa 2%, ndipo cholakwika cha kutentha chimayendetsedwa pa 0.1 ℃, chomwe chingathe kukwaniritsa muyeso wolondola wa SpO₂, kutentha, ndi kugunda. , Kukwaniritsa zosowa za kuyeza akatswiri.

Kusankha MedLinket njira yotsika mtengo komanso yolondola yoyezera oximeter pamsika, ndikukhulupirira kuti ipeza mwayi kwa ogwiritsa ntchito.