I-Artificial cardiac assist device (VAD) iyithuluzi elisetshenziselwa ukusiza noma ukushintsha ukusebenza kwenhliziyo futhi livame ukusetshenziselwa ukwelapha iziguli ezinokwehluleka kwenhliziyo. Emishinini yokusiza inhliziyo yokwenziwa, imotor corelesskuyingxenye ebalulekile eyenza amandla ajikelezayo akhuthaze ukugeleza kwegazi, ngaleyo ndlela kugcinwe ukujikeleza kwegazi lesiguli. Lesi sihloko sizoxoxa ngokuklama nokusetshenziswa kwamamotho angenasici kumaphampu egazi okwenziwa.
Okokuqala, umklamo we-coreless motor udinga ukucabangela indawo yayo ekhethekile yokusebenza kumaphampu egazi okwenziwa. Njengoba amadivaysi okusiza inhliziyo yokwenziwa adinga ukusebenza isikhathi eside, amamotho angenasisekelo kudingeka asebenze kahle, azinze futhi athembeke. Ngaphezu kwalokho, njengoba ukusebenza kwayo kudinga ukuthintana okuqondile negazi, ukuklama kwe-motor coreless nakho kudinga ukucabangela izakhiwo ze-biocompatibility kanye ne-anti-thrombotic. Ngakho-ke, ama-motor coreless ngokuvamile asebenzisa izinto ezikhethekile nezingubo zokugqoka ukuze kuqinisekiswe ukusebenza kwazo okuzinzile isikhathi eside egazini.
Okwesibili, ukusetshenziswa kwamamotho angenasici kumaphampu egazi okwenziwa kufanele kubhekwe umthelela wawo ekugelezeni kwegazi. I-coreless motor ishayela ukugeleza kwegazi ngamandla e-centrifugal akhiqizwa ukuzungezisa, ngakho-ke ukwakheka kwayo kudinga ukucabangela ukuphatha igazi okumnene ukuze kugwenywe amandla e-shear amaningi nokucindezela kwegazi. Ngesikhathi esifanayo, ukusebenza kwe-motor coreless kudinga ukufanisa isigqi se-circadian somzimba womuntu ukuze kuqinisekiswe ukujikeleza kwegazi okuzinzile nokuphumelelayo.
Kuzinhlelo zokusebenza ezingokoqobo, ukuklanywa nokusetshenziswa kwamamotho angenasisekelo kumaphampu egazi okwenziwa kumele kusebenze eduze nezinye izingxenye, njengezinzwa nezinhlelo zokulawula. Ngokulawula okunembile nokuqapha, i-coreless motor ingafinyelela ukulawulwa okunembile kokugeleza kwegazi nokucindezela ukuze kuhlangatshezwane nezidingo zeziguli ezahlukahlukene.
Ngamafuphi, ukuklanywa nokusetshenziswa kwamamotho angenasici kumaphampu egazi okwenziwa kuyinkinga yobunjiniyela eyinkimbinkimbi futhi ebucayi edinga ukucatshangelwa okuphelele kwezinto, ukuhambelana kwe-biocompatibility, uketshezi lwemishini nezinye izici. Ngokuthuthuka okuqhubekayo kobuchwepheshe bezokwelapha, ukusetshenziswa kwamamotho angenasici emishinini yokusiza inhliziyo yokwenziwa kuzothuthukiswa futhi kuthuthukiswe, kuhlinzekwe ngokwelashwa okuphumelelayo nokuphephile kweziguli ezihluleka yinhliziyo.
Umbhali: Sharon
Isikhathi sokuthumela: Jul-23-2024