Disclosed is a combined packaging system for a medical instrument. The combined packaging system comprises a handheld instrument (10) comprising a handle (11) and a slender rod (13) connected to the handle, the combined packaging system further comprising a main body bag (130), an extension pipe (150) and a cover (190). The main body bag comprises a planar lip (135), a first connecting lip (137) and a first shell (136) extending therebetween. An open packaging opening is defined by an inner lip edge (132). An open connecting hole (138) is defined by the first connecting lip. The extension pip comprises a second connecting lip (155), a sealed distal end (157) and a second shell (156) extending therebetween. The first connecting lip and the second connecting lip are welded to form a first sealed area (140); the main body bag and the extension pip are connected by the first sealed area to form an integral seamless housing (160); and a seamless cavity (161) comprising an end opening is defined by the seamless hou