Opaleshoni yotayirapo scalpel nthawi zambiri imakhala ndi m'mphepete mwake komanso kagawo kakang'ono kolumikizidwa ndi chogwirira cha scalpel. Zinthuzi nthawi zambiri zimapangidwa ndi titaniyamu, aloyi ya titaniyamu, chitsulo chosapanga dzimbiri kapena chitsulo cha carbon. Pong'ambika, tsambalo limagwiritsidwa ntchito kudula khungu ndi minofu, nsongayo imagwiritsidwa ntchito kukonzanso mitsempha yamagazi ndi mitsempha, ndipo chogwiririracho chimagwiritsidwa ntchito kupatukana mosasamala. Sankhani tsamba loyenera ndikuchigwira molingana ndi kukula kwa bala. Chifukwa cha chikhalidwe cha "zero" kuvulala kwa minofu pambuyo podulidwa, zida zogwiritsira ntchito opaleshoni zingagwiritsidwe ntchito pazochitika zosiyanasiyana, koma chilonda chikang'ambika chikutuluka magazi mwachangu, choncho chiyenera kugwiritsidwa ntchito popanga magazi ambiri.