Uhlolojikelele lwensimbi yensimbi yezinga lezokwelapha
Uma kuqhathaniswa nesakhiwo sezimboni ensimbi engagqwali, insimbi engagqwali yezokwelapha idinga ukulondoloza ukumelana nokugqwala okuhle kakhulu emzimbeni womuntu, ukunciphisa i-ion yensimbi, ukubola, ukugwema ukugqwala kwe-intergranular, ukugqwala kwengcindezi kanye nokugqwala kwendawo, ukuvimbela ukuqhekeka okuvela kumadivayisi afakiwe, qinisekisa ukuthi ukuphepha kwemishini efakelwe. Ngakho-ke, izidingo zayo zokwakheka kwamakhemikhali ziqine kakhulu kunensimbi engagqwali yezimboni. Insimbi engagqwali yezokwelapha efakwe ikakhulukazi emzimbeni womuntu, okuqukethwe kwe-alloy ye-Ni ne-Cr bekuphakeme kunensimbi engagqwali evamile (imvamisa ihlangabezana nezimfuneko zomkhawulo ongaphezulu zensimbi engagqwali evamile). Okuqukethwe kwezinto ezingcolile ezifana no-S no-P kungaphansi kwalokho kwensimbi engagqwali evamile, futhi kubekwe ngokucacile ukuthi usayizi wezinto ezingezona ezensimbi ensimbi kufanele ube ngaphansi kwebanga le-115 (uhlelo oluhle) kanye nebanga loku-1 (uhlelo oluqinile ) ngokulandelana, kuyilapho izinga lensimbi engagqwali evamile yezimboni lingafaki izidingo ezikhethekile zokufakwa.
Insimbi engagqwali yezokwelapha isetshenziswe kabanzi njengempahla yokufakelwa kwezokwelapha kanye nempahla yethuluzi lezokwelapha ngenxa yokuhambisana kwayo okuhle kwe-biocompatibility, izici ezinhle zemishini, kanye nokumelana nokugqwala okuhle kakhulu koketshezi lomzimba kanye nokusebenza kahle. Insimbi engagqwali yezokwelapha isetshenziswa kabanzi ukwenza amathuluzi okulungisa angaphakathi okuhlanganisa nokuphuka okuhlukahlukene, njengazo zonke izinhlobo zenyonga yokwenziwa, idolo, ihlombe, indololwane ehlangene; Kwezamazinyo, isetshenziswa kabanzi kudokotela wamazinyo, ama-orthotics wamazinyo, ukufakwa kwezimpande zamazinyo; Ekuhlinzweni kwenhliziyo, isetshenziselwa i-cardiovascular stent. Ngaphezu kokwenza izimila ezihlukene zokuhlinzwa, insimbi engagqwali yezokwelapha iphinde isetshenziselwe ukukhiqiza amathuluzi noma amathuluzi okuhlinza ahlukahlukene, njengama-suture okuhlinzwa.
Insimbi yezinga elihlukile iletha ukusebenza okuhlukile kuzinaliti ze-sutures, kodwa zonke lezi zingahlangabezana nemfuneko ephansi kakhulu yokuhlinzwa okuphephile.
Ishadi elilandelayo libala insimbi engagqwali yezokwelapha okufanele isetshenziswe kakhulu ezinalithini zokuhlinza.
| Izinto ezibonakalayo | C | Si | Mn | P | S | Ni | Cr | N | Cu | Mo | Fe | Al | B | Ti | Cb |
| 420j2 | 0.28 | 0.366 | 0.440 | 0.0269 | 0.0022 | 0.363 | 13.347 | / | / | / | Ibhalansi | / | / | / | / |
| 455 | 0.05 | 0.5 | 0.5 | 0.04 | 0.03 | 7.5-9.5 | 11.0-12.5 | / | 1.5-2.5 | 0.5 | 71.98-77.48 | / | / | 0.8-1.4 | 0.1-0.5 |
| 470 | 0.01 | 0.040 | 0.020 | 0.0020 | 0.0230 | 11.040 | 11.540 | 0.004 | 0.010 | 0.960 | Ibhalansi | 0.090 | 0.0022 | 1.600 | 0.01 |
| 302 | ≤0.15 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.03 | 8.0-10.0 | 17.0-19.0 | / | / | / | Ibhalansi | / | / | / | / |
| 304AISI | ≤0.07 | ≤1.0 | ≤2.0 | ≤0.045 | ≤0.015 | 8.0 -10.5 | 17.5-19.5 | ≤0.11 | / | / | Ibhalansi | / | / | / | / |
