ʻO ka Medical zoom/focus coupler he mea ia i hoʻohana ʻia i ka lāʻau lapaʻau no ka hoʻomaikaʻi ʻana i ka nānā ʻana i ka wā o nā kaʻina hana lapaʻau, ʻo ia hoʻi ma ka endoscopy a me ka microscopy. Hoʻolālā ʻia ia e hoʻohui i waena o ka ʻōnaehana kiʻi olakino a me ka mea hana optical, e like me ka endoscope a i ʻole microscope, hiki i ka zooming a me ka nānā ʻana i nā mana. Hāʻawi ia i ka nānā pono ʻana, e hōʻoia i ka maikaʻi o ke kiʻi a me ka mālamalama i ka wā o ke kaʻina hana. Hoʻokomo pinepine ka mīkini i nā optics kiʻekiʻe, e hōʻoia ana i ka distortion-free a me ka kiʻi kiʻekiʻe. Me kāna zoom hiki ke hoʻololi ʻia a me ka hiki ke nānā aku, hoʻonui ia i ka pololei a me ka pono o nā kaʻina hana lapaʻau, e hāʻawi ana i nā hopena maikaʻi aʻe no nā maʻi.