A kind of related optical fiber needle for applying what vein laser of this creation system,It includes needle holder and upper shield,The needle holder system has base portion,The base portion system what side is equipped with open-work,And the what open-work is equipped with the optical fiber being pierced by outside what base portion towards another side,And upper shield is also formed with the accommodation groove for optical fiber merging inside what,And the what accommodation groove side is formed with the opening that assembling is placed for base portion,The another side of what accommodation groove is equipped with one or more hollow hole again,And when what practical application can the aforementioned hollow hole of what directly pour into specific gas,For encapsulating needle holder and upper shield immediately to the optical fiber Hou that carries out disinfection,It is possible to reduce the external bacterium of accommodation groove inner fiber contamination or virus etc.,And then prevent the infection that user germ is caused when injecting vein laser using this creation what.本創作係有關一種應用於靜脈雷射之光纖針頭，其包括有針頭座及套蓋，該針頭座係具有基部，該基部係於一側設有透孔，並於該透孔朝另側設有穿出於基部外之光纖，而套蓋亦於內部形成有供光纖置入之容置槽，並於該容置槽一側形成有供基部穿置組裝之開口，再於容置槽另側設有一個或一個以上之鏤空孔，並於實際應用時可於前述鏤空孔直接灌入特定氣體，以供對光纖進行消毒後立即封裝針頭座及套蓋，以降低容置槽內光纖沾染外部細菌或病毒等之可能，進而防止使用本創作於注射靜脈雷射時造成使用者病菌之感染。
