Oxygen sensors inoshandiswa kuyera uye kutarisa mazinga ehutano hweokisijeni, mweya weokisijeni inofemerwa uye inofemerwa nemurwere akabatana nemhepo inofefetera kana kuti anesthesia muchina.
Iyo okisijeni sensor mune yekufema gasi monitor (RGM) inoyera iyo oxygen concentration (kana) oxygen partial pressure mumusanganiswa wekufema gasi.
Oxygen sensors inozivikanwawo seFiO2 sensors kana mabhatiri eO2, uye chikamu cheokisijeni yakafemerwa (FiO2) ndiko kusanganiswa kweokisijeni mumusanganiswa wegesi.Chikamu cheokisijeni chakafemerwa chegasi musanganiswa mumhepo yemukati memhepo ndeye 21%, zvinoreva kuti iyo oxygen yekuisa mumhepo yekamuri i21%.
Sei maRGM achida okisijeni sensor?
Kuongorora kwese kwegasi rekufema kwakagadzirirwa kufambisa musanganiswa wemhepo neokisijeni kupinda nekubuda mumapapu emurwere kubatsira nekufema, kana mune dzimwe nguva, kupa kufema kwemuchina kumurwere ane kufema kusingakwane kana kuti muviri usingakwanisi kufema.
Panguva yekufefetera, kuyerwa chaiko kwemusanganiswa wegasi rekufema kunodiwa.Kunyanya, kuyera okisijeni panguva yekufema kwakakosha nekuda kwekukosha kwayo mumasabolism.Muchiitiko ichi, sensor okisijeni inoshandiswa kudzora uye kuona murwere akaverengerwa okisijeni.Chinodiwa chikuru ndechekupa kuyerwa kwakanyanya kweiyo oxygen yemukati mumagasi ekufema.Yakasiyana Mechanism yeMedical Oxygen Sensors
Electrochemical sensors
Fluorescent oxygen sensor
1. Electrochemical oxygen sensor
Electrochemical oxygen sensing elements inonyanya kushandiswa kuyera oxygen iri mumhepo iri mumhepo.Aya ma sensors akabatanidzwa mumushini weRGM kuyera kusangana kweokisijeni.Vanosiya shanduko yemakemikari muchinhu chekunzwa, zvichikonzera kubuda kwemagetsi kuenzana nechiyero cheokisijeni.Electrochemical sensors inoshandura simba remakemikari kuita simba remagetsi kuburikidza neoxidation uye kuderedza maitiro.Inopa kubuda kwemagetsi kumudziyo wakaenzana nehuwandu hweokisijeni mu cathode uye anode.Iyo okisijeni sensor inoshanda seyazvino sosi, saka kuyerwa kwevoltage kunoitwa kuburikidza nemutoro wekudzivirira.Ikozvino kubuda kweiyo okisijeni sensor yakaenzana nechiyero chekushandiswa kweokisijeni neiyo okisijeni sensor.
2. Fluorescent oxygen sensor
Optical oxygen sensors yakavakirwa pamusimboti wefluorescence kudzimwa kweokisijeni.Ivo vanovimba nekushandiswa kwemwenje masosi, mwenje ma detectors uye luminescent zvinhu zvinosangana nechiedza.Luminescence-based oxygen sensors iri kutsiva electrochemical oxygen sensors muminda yakawanda.
Nheyo yemamolekyuli okisijeni fluorescence quenching yagara ichizivikanwa.Mamwe mamorekuru kana makomisheni efluoresce (kureva, anoburitsa simba rechiedza) kana akaiswa muchiedza.Nekudaro, kana mamorekuru eokisijeni aripo, simba rechiedza rinoendeswa kumamorekuru eokisijeni, zvichikonzera kushomeka kwefluorescence.Nekushandisa chitubu chechiedza chinozivikanwa, simba rechiedza rakaonekwa rinopindirana nenhamba yeokisijeni mamorekuru mumuenzaniso.Naizvozvo, iyo shoma fluorescence inoonekwa, iyo yakawanda okisijeni mamorekuru anofanirwa kunge aripo mumuenzaniso gasi.
Nguva yekutumira: Aug-05-2022