BU-ertin Nahum usungule irobhothi elibizwa ngeRosa ™ elisiza odokotela abahlinzayo ngokuhlinzwa kobuchopho. Wakha inkampani yakhe (iMedtech SAS) eklama amarobhothi okuhlinza ngo-2002. Engqondweni yakhe, amarobhothi angenye yezindlela ezingcono kakhulu zokusiza odokotela abahlinzayo ukuba benze imisebenzi yabo kahle nangokunembile. Uthole iziqu zeNational Institute of Applied Sciences (INSA Lyon, France) futhi uphethe umphathi wesayensi emarobhothini eCoventry University (eNgilandi).
Ngaphambi kokudala iMedtech, uBertin Nahum wasebenzela izinkampani ezinkulu iminyaka eyishumi lapho enza khona izixazululo zosizo zamarobhothi zokuhlinzwa.
UBertin Nahum uqale wasungula irobhothi elibizwa nge-BRIGIT ™ elisiza odokotela ekuhlinzeni ngamathambo ngokunikeza ukwesekwa kwemishini yokusaha amathambo ngengalo eqondisa udokotela ohlinzayo futhi emsizayo ukuthi asike ngokunembile. UZimmer Inc, umholi womhlaba kwezokuhlinza ngamathambo, wathenga amalungelo obunikazi kwa-Medtech ngo-2006.