I-Medical zoom/focus coupler iyithuluzi elisetshenziswa emkhakheni wezokwelapha ukuthuthukisa ukubonakala ngesikhathi sezinqubo zezokwelapha, ikakhulukazi ku-endoscopy kanye ne-microscopy. Yakhelwe ukuxhumanisa phakathi kohlelo lwezithombe zezokwelapha kanye nethuluzi lokukhanya, njenge-endoscope noma i-microscope, okuvumela amakhono okusondeza nokugxila. I-coupler ivumela amazinga okukhulisa aguquguqukayo, okuvumela ochwepheshe bezokwelapha ukuthi balungise izinga le-zoom ukuze babheke futhi bahlaziye indawo eqondiwe. Iphinde ivumele ukugxila okunembile, iqinisekise ikhwalithi yesithombe kanye nokucaca okuhle ngesikhathi senqubo. Idivayisi ivame ukufaka ama-optics asezingeni eliphezulu, okuqinisekisa ukuthi izithombe aziphazamisi futhi azinazo izixazululo eziphezulu. I-zoom/focus coupler iyithuluzi elibalulekile ezindaweni zezokwelapha, njengoba isiza ekuxilongweni okunembile, izinqubo zokuhlinzwa ezisebenzayo, kanye nokubona kahle abasebenzi bezokwelapha. Ngamakhono ayo okusondeza nokugxila alungisekayo, ithuthukisa ukunemba nokusebenza kahle kwezinqubo zezokwelapha, ihlinzeka ngemiphumela engcono ezigulini.