1. Basa uye musimboti
Zvinoenderana nehunhu hunoonekwa hweoxyhemoglobin (HbO2) uye yakaderedzwa hemoglobin (Hb) munzvimbo dzvuku uye infrared light regions, zvinogona kuoneka kuti kutorwa kweHbO2 neHb munzvimbo dzvuku mwenje (600-700nm) kwakasiyana kwazvo, uye kutorwa kwechiedza uye kupararira kweropa kwechiedza Chiyero chinoenderana nekuzara kweokisijeni muropa;nepo infrared spectral region (800～1000nm), kutorwa kwakasiyana.Chiyero chekutorwa kwechiedza uye kupararira kweropa kwechiedza kunonyanya kuenderana nezviri mukati mehemoglobin.Naizvozvo, zviri mukati meHbO2 neHb zvakasiyana mukunyura.Iyo spectrum yakasiyanawo, saka ropa riri muropa catheter yeoximeter rinogona kunyatsoratidza kuzara kweokisijeni yeropa maererano nezviri muHbO2 neHb, ingave iri arterial blood kana venous blood saturation.Hyero yezviratidzo zveropa zvakatenderedza 660nm uye 900nm (ρ660/900) inonyanya kuratidza shanduko muropa reoxygen saturation, uye general clinic blood saturation metres (seBaxter saturation metres) inoshandisawo reshiyo iyi sechinhu chinosiyana.Munzira yekufambisa chiedza, kuwedzera kune arterial hemoglobin inotora chiedza, mamwe matishu (akadai seganda, zvinyoro zvinyoro, venous blood uye capillary blood) anogonawo kutora chiedza.Asi kana mwenje wechiitiko uchipfuura nepamunwe kana munzeve, mwenje unogona kutorwa neropa repulsatile uye mamwe matissue panguva imwe chete, asi kusimba kwechiedza kunotorwa nevaviri kwakasiyana.The light intensity (AC) inobatwa ne pulsatile arterial blood inoshanduka nekuchinja kwe arterial pressure wave Uye shanduko.The light intensity (DC) inobatwa nemamwe matishu haishanduki nekupuruzira uye nguva.Kubva pane izvi, chiyero chekunyura kwechiedza R mune maviri wavelengths inogona kuverengerwa.R=(AC660/DC660)/(AC940/DC940).R uye SPO2 zvakabatana zvisina kunaka.Zvinoenderana neiyo R kukosha, iyo inoenderana SPO2 kukosha inogona kuwanikwa kubva kune yakajairwa curve.
2. Zvimiro uye zvakanakira probe
Iyo SPO2 chiridzwa chinosanganisira zvinhu zvitatu zvakakosha: probe, basa module uye chikamu chekuratidzira.Kune akawanda mamonitor pamusika, tekinoroji yekuona SPO2 yatove yakakura kwazvo.Iko kurongeka kweiyo SPO2 kukosha yakaonekwa nemonitor inonyanya kuenderana neprobe.Pane zvinhu zvakawanda zvinokanganisa kuonekwa kweprobe.Mudziyo wekuona, waya yekurapa, uye tekinoroji yekubatanidza inoshandiswa neprobe inokanganisa mhedzisiro yekuona.
A · Detection mudziyo
Iwo ma-light-emitting diode uye mafotodetectors anoona masaini ndiwo akakosha eiyo probe.Ndiyo zvakare kiyi yekuona kurongeka kweiyo yekuona kukosha.Muchiono, kureba kwechiedza chitsvuku i660nm, uye kukosha kunowanikwa kana infrared mwenje iri 940nm yakanaka.Zvisinei, nekuda kwekuoma kwekugadzirwa kwechigadzirwa, wavelength yechiedza chitsvuku uye infrared chiedza chinogadzirwa chinogara chichitsauka.Hukuru hwekutsauka kwechiedza chewavelength huchakanganisa kukosha kwakaonekwa.Nokudaro, nzira yekugadzira yechiedza-emitting diodes uye photoelectric yekuona michina yakakosha zvikuru.R-RUI inoshandisa midziyo yekuongorora yeFLUKE, ine zvakanakira zvese mukurongeka uye kuvimbika.
B · Medical Wire
Pamusoro pekushandisa zvinhu zvinotengeswa kunze kwenyika (zvinovimbika maererano nepamusoro elastic simba uye corrosion resistance), yakagadzirwawo nekaviri-layer shielding, iyo inogona kudzvanyirira kukanganiswa kweruzha uye kuchengetedza chiratidzo chakasimba kana chichienzaniswa ne-single-layer kana pasina nhovo.
C·Cushion
Iyo probe inogadzirwa neR-RUI inoshandisa yakanyatsogadzirwa yakapfava pad (finger pad), iyo yakasununguka, yakavimbika, uye isiri-allergenic inosangana neganda, uye inogona kuiswa kune varwere vemhando dzakasiyana.Uye inoshandisa dhizaini yakazara-yakaputirwa kudzivirira kukanganisa kunokonzerwa nekudonha kwechiedza nekuda kwekufamba kwemunwe.
D chigunwe clip
Muviri wemunwe clip yakagadzirwa nemoto-inodzivirira isiri-chepfu ABS zvinhu, yakasimba uye isiri nyore kukuvadza.Chiedza chinodzivirira ndiro chakagadzirwawo pamunwe clip, iyo inogona kudzivirira zvirinani peripheral light source.
E·Chitubu
Kazhinji, chimwe chezvikonzero chikuru chekukuvara kweSPO2 ndechekuti chitubu chakasununguka, uye elasticity haina kukwana kuita kuti clamping simba risakwane.R-RUI inotora high-tension electroplated carbon steel spring, iyo yakavimbika uye yakasimba.
F terminal
Kuti ive nechokwadi chekubatana kwakavimbika uye kusimba kweiyo probe, kudzoreredzwa mukuita kwechiratidzo chekufambisa kunotariswa pane yekubatanidza terminal neyekutarisa, uye yakasarudzika nzira yegoridhe-yakaputirwa terminal inogamuchirwa.
G · Kubatanidza maitiro
Iyo yekubatanidza maitiro eprobe yakakoshawo kune mhinduro dzebvunzo.Nzvimbo dzemapedhi akapfava akakwenenzverwa uye akaedzwa kuti ave nechokwadi chezvinzvimbo zvakaringana zveanotapurirana uye anogashira mudziyo wekuyedza.
H · Panyaya yekururama
Iva nechokwadi chokuti kana SPO2 inokosha 70% ~ ~ 100%, kukanganisa hakupfuuri kuwedzera kana kubvisa 2%, uye kururamisa kwakakwirira, kuitira kuti chigumisiro chekutsvaga chive chakavimbika.
Nguva yekutumira: Jun-24-2021