Umgomo wokusebenza we-nail oximeter: ngokushayela ngokulandelana i-LED ebomvu (660nm) kanye ne-infrared LED (910nm), umugqa oluhlaza okwesibhakabhaka ubonisa ijika lokungeniswa kweshubhu elamukelayo ku-hemoglobin encishisiwe lapho i-hemoglobin ingawathwali ama-molecule omoya-mpilo.
Kuyabonakala ukuthi ukumuncwa kwe-hemoglobin encishisiwe kuya ku-660nm ukukhanya okubomvu kunamandla uma kuqhathaniswa, kanti ubude bokumuncwa kokukhanya kwe-infrared okungu-910nm buthaka uma kuqhathaniswa.Umugqa obomvu ukhombisa ijika lokungeniswa kwe-oxyhemoglobin lapho ishubhu eyamukelayo ine-hemoglobin namangqamuzana egazi abomvu anama-molecule omoya-mpilo.Ukumuncwa kokukhanya okubomvu ku-660 nm kubuthakathaka, futhi ukumuncwa kokukhanya kwe-infrared ku-910 nm kunamandla uma kuqhathaniswa.Esilinganisweni somoya-mpilo wegazi, umehluko phakathi kwe-hemoglobin encishisiwe ne-hemoglobin ene-oksijini ngokuthola umehluko phakathi kwezinhlobo ezimbili zokumuncwa kokukhanya ngamaza wamaza ahlukene kuyidatha eyisisekelo kakhulu yokulinganisa ukugcwala komoyampilo egazini.Ekuhlolweni komoyampilo wegazi, i-660nm ne-910nm amaza amaza ajwayeleke kakhulu.Eqinisweni, ukuze kuzuzwe ukunemba okuphezulu, ngaphezu kwamagagasi amabili, kuze kufike ku-8 wavelengths, isizathu esiyinhloko ukuthi i-hemoglobin yomuntu ayincishisiwe kuphela ku-hemoglobin.Ngaphezu kwe-oxyhemoglobin, akhona amanye ama-hemoglobin, sivame ukubona i-carboxyhemoglobin,
Isikhathi sokuthumela: Jun-15-2022