Iindaba

Umgaqo we-stethoscope

Ngokuqhelekileyo iqulethe intloko ye-auscultation, ityhubhu yesikhokelo sesandi, kunye ne-ear hook. Yenza (i-frequency) isandisi esingenamgca sesandi esiqokelelweyo.

Umgaqo we-stethoscope kukuba ukuhanjiswa kwe-vibration phakathi kwezinto ezithatha inxaxheba kwifilimu ye-aluminium kwi-stethoscope, kwaye umoya wodwa utshintsha i-frequency kunye ne-wavelength yesandi, ufikelele kuluhlu "olukhululekile" lwendlebe yomntu, kwaye ngexesha elifanayo. ukukhusela ezinye izandi kunye "nokuva" kucace ngakumbi. Isizathu sokuba abantu beve isandi kukuba oko kubizwa ngokuba “yisandi” kubhekiselwa ekungcangcazeleni kwezinto, ezinjengomoya ongcangcazelayo kwinwebu ye-tympanic endlebeni yomntu, eguqulwa ibe yimisinga yobuchopho, kwaye abantu “banako” ukuva. isandi. Amaxesha okungcangcazela okuviwa ziindlebe zabantu ngama-20-20KHZ.

Kukho omnye umgangatho wokuqonda komntu isandi, esingumthamo, onxulumene nobude bezandi. Ubungakanani bobunzima bokuva okuqhelekileyo komntu yi-0dB-140dB. Ngamanye amazwi: isandi kuluhlu lwe-audio singxola kakhulu kwaye sibuthathaka ukuba singaviwa, kunye nesandi esikuluhlu lwevolyum sincinci kakhulu (amaza amaza aphantsi) okanye sikhulu kakhulu (amaza amaza aphezulu) ukuba singaviwa.

Isandi esiviwa ngabantu sikwanxulumene nokusingqongileyo. Indlebe yomntu ikhusela, oko kukuthi, izandi ezinamandla zinokugubungela izandi ezibuthathaka. Isandi esingaphakathi emzimbeni womntu, njengokubetha kwentliziyo, izandi zamathumbu, iirale ezimanzi, njl. njl., kunye nesandi sokuhamba kwegazi asiviwa kakhulu ngenxa yokuba isandi siphantsi kakhulu okanye ivolyum iphantsi kakhulu, okanye ayibonakali. ngendawo enengxolo.

Ngexesha le-cardiac auscultation, i-earpiece ye-membrane inokumamela izandi eziphezulu ze-frequency kakuhle, kwaye i-earpiece yohlobo lwekomityi ifanelekile ukuphulaphula izandi eziphantsi okanye ukumbombozela. Ii-stethoscopes zanamhlanje zonke zii-stethoscopes ezinamacala amabini. Kukho zombini inwebu kunye neentlobo zekomityi kwintloko ye-auscultation. Ukuguqulwa phakathi kwezi zibini kuphela kufuneka kujikelezwe ngu-180 °. Iingcali zibonisa ukuba oogqirha bekliniki kufuneka basebenzise i-stethoscopes emacala amabini. Kukho enye itekhnoloji enelungelo elilodwa lomenzi ekuthiwa yitekhnoloji ye-membrane edadayo. Intloko ye-membrane ye-auscultation ingatshintshwa ibe yintloko yendlebe yohlobo lwekomityi ngendlela ekhethekileyo yokuphulaphula ingxolo ye-low-frequency. Zombini izandi zemiphunga eziqhelekileyo nezingaqhelekanga zizandi eziphezulu, kwaye yinwebu yendlebe kuphela enokusetyenziswa ukwenza imiphunga.

Iintlobo ze-stethoscopes

I-Acoustic stethoscope

IAcoustic stethoscope yeyona stethoscope yokuqala, kwaye ikwasisixhobo soxilongo lwezonyango esiqhelekileyo kubantu abaninzi. Olu hlobo lwe-stethoscope luphawu logqirha, kwaye ugqirha unxiba entanyeni yonke imihla. IAcoustic stethoscopes zezona zisetyenziswa kakhulu.

I-Stethoscope ye-elektroniki

I-electronic stethoscope isebenzisa itekhnoloji yombane ukukhulisa isandi somzimba kwaye yoyise ingxolo ephezulu ye-acoustic stethoscope. I-electronic stethoscope idinga ukuguqula umqondiso wombane wesandi ukuya kumaza omsindo, athi ke anyuswe aze acutshungulwe ukuze ufumane eyona ndimameleyo. Xa kuthelekiswa ne-acoustic stethoscopes, zonke zisekelwe kwimigaqo efanayo yomzimba. I-electronic stethoscope ingasetyenziswa kunye nesicwangciso sokuncedisa ikhompyutha ukuhlalutya i-pathology yesandi sentliziyo erekhodiweyo okanye ukumbombozela kwentliziyo emsulwa.

Ukufota i-stethoscope

Ezinye ze-electronic stethoscopes zixhotyiswe ngemveliso yomsindo ethe ngqo, enokusetyenziswa ukuqhagamshela kwisixhobo sokurekhoda sangaphandle, njengelaptop okanye i-MP3 rekhoda. Gcina ezi zandi kwaye umamele izandi ezirekhodiweyo kwi-headset yestethoscope. Ugqirha unokwenza uphando olunzulu kunye nokuxilongwa okude.

I-Fetal Stethoscope

Enyanisweni, i-fetus stethoscope okanye i-fetus scope ikwaluhlobo lwe-acoustic stethoscope, kodwa yodlula i-acoustic stethoscope eqhelekileyo. I-fetus stethoscope inokuliva ilizwi lomntwana osesiswini sowasetyhini okhulelweyo. Iluncedo kakhulu kukhathalelo lobunesi ngexesha lokukhulelwa.

Doppler stethoscope

I-Doppler stethoscope sisixhobo sombane esilinganisa umphumo weDoppler wamaza abonakalisiweyo amaza e-ultrasonic avela kumalungu omzimba. Intshukumo ichongiwe njengotshintsho olwenziwa rhoqo ngenxa yesiphumo seDoppler, ebonisa amaza. Ngoko ke, i-Doppler stethoscope ifaneleke ngokukodwa ukuphatha izinto ezihambayo, ezifana nentliziyo ebethayo.