Kukho iindidi ezimbini ze-oioksijiniiijenereyitha ezikhoyo kwimarike:ioksijini yokhathalelo lwempilogenerator ukubaisetyenziswa ikakhulu kukhathalelo lwempilokwayeayikwazi ukudlala umphumo wonyango lwe-oxygen; ijenereyitha ye-oksijini yonyango oko kufunadibanangeimigangatho yesizwe efanelekileyokwaye ke ngokoinokuhlangabezana neemfuno zonyango lweoksijini yezinye izigulana.

NgokweNgcaciso Jikelele yezoNyangoOioksijiniIjenereyitha ngeIsihluzo seemolekyuli,ioksijiniis iveliswe yinkqubo ye-molecular sieve variable pressure adsorption kusetyenziswa umoya njengento ekrwada.Uxinzelelo lweoksijiniiioksijiniivelisweyi 90% ~ 96% (V/V), kwaye amacandelo aseleyo ikakhulu argon kunye nitrogen.

Tyena ilitha yeijenereyitha yeoksijini ibhekisele kwiumthamo we-90% yegesi yoxinaniso lwe-oxygen eveliswa ngomzuzu.Fokanye umzekelo, i-oksijini ye-5Lijenereyithainokuvelisa i-5L ye-90% yegesi yoxinaniso lwe-oxygen ngomzuzu, kwaye ukuba kufuneka ukhuphe ngaphezu komthamo wegesi, kuya kukhokelela ekugxininiseni kwe-oksijeni eyaneleyo.

Nangona kunjalo, nangona i-oxygen concentration yegesi ephumayo i-90%,wenauya kuphefumlela inxalenye yomoya oqhelekileyo kunye ne-oksijini yoxinaniso lwama-20.8% xa ukuphefumlangeioksijini.Ngoko ke, iUgxininiso lweoksijini ephefumle ngokwenene lunokuba malunga nama-30%.Ngokomgangatho oqhubekayo we-1 ~ 2L / min izinga lokuhamba kwe-oxygen kwizigulane ezinezifo ezingapheliyo ze-pulmonary, eyona nto i-oksijini efakwe kuyo i-oksijini yonyango lwexesha elide lwesifo esingapheliyo se-pulmonary isifo malunga ne-25% ~ 29%.

If unguukukhangela unyango oluchanekileyo nolusebenzayo lweoksijini,hUnyango lwe-igh-flow nasal cannula (HFNC).lukhetho olugqibeleleyo.

I-HFNC ngoku yeyona igqibeleleyokwayeindlela yonyango lwe-oxygen enqwenelekayophakathi kweentlobo ngeentloboukuvelisa ioksijini yonyangoiinkqubo, nangona okuindlela endala yonyango lwe-oxygen ayiphumelelanga ukufumana isicelo seklinikhi kwiintsuku zokuqala kuba ayizange isombulule ngempumelelo iingxaki zokumanzisa kunye nokufudumala.. Idityaniswe nokulula kunye nokulula kwayo, kufuna kuphela uqeqesho olulula ukusebenzisa, kunyengolo hloboisetyenziswa kakhulu kwiklinikhi.Kodwa okukhuluIngxaki kukuba iyabiza kwaye inakokuphelazisetyenziswe ezibhedlele,kwayekusekude ukuba ihanjwe phambi kokuba iphakanyiswe ngokubanzi kwiintsapho.

HFNCinokuzisa ezi nzuzo zimbini zilandelayoizigulane.

1. Ukuphefumla okuchanekileyo kweoksijini yoxinzelelo. Isixhobo sonyango sokuphefumla ngokuphefumla okuphezulu ngokwaso siya kuxuba ukukhutshwa kwe-oksijini ukusuka kwijenereyitha ye-oksijini kunye nomoya ukuya kwi-concentration ye-oksijeni ebekiweyo, kwaye emva koko uyikhuphele kwisigulane kwisantya sokuhamba esiphakamileyo kunencopho yokuphefumula komntu, ukuphepha umsebenzisi ukuba aphefumle. umoya oqhelekileyo ukuchaphazela i-oxygen concentration,kunye nokulawulaeyona nto yokuphefumlela ioksijini echanekileyoy.

2. Phucula indlela yomoya kwaye ukhuthaze ukuphuma kwesikhohlela. I-HFNC ibonelela nge-high-flow air-oksijeni umxube kunye nobushushu obungaguqukiyo kunye nokufuma, okuhambelana nobushushu begesi kunye nokufuma kwendlela yomoya kwimeko yesiqhelo yomzimba kunye nokuphucula umsebenzi we-airway mucus cilia system.