A kind of needle safety protective device of what is closed in this creation system,The protective device system has the syringe needle of hose for installing one,Protective device mainly by box cover,Cassette holder and pressing plate composition,Wherein one first buckle and one first holding division is arranged in one wall surface of box cover what,And one second buckle and one second holding division is arranged in one wall surface system of cassette holder,It can mutually be fastened with aforementioned each buckle before syringe needle is not used so that medical staff opens at any time and uses syringe needle,It is then mutually stuck to prevent box cover to be opened again using each holding division using Hou is finished,Lead to that syringe needle is exposed and matter of regret occurs,It is enough that the first holding division and the second holding division can not be contacted by the height that the first buckle of what and the second buckle what fasten Hou and is engaged,Therefore it is stuck with cassette holder not will cause box cover before being not used,In addition,Fixed extract out to avoid easy hose can be suppressed for the hose in cassette holder using the pressing plate in aforementioned box cover and the facts of protective device failure is caused to occur,Therefore the effect of can reach prevention needlestick injuries people with this creation.本創作係關於一種針頭安全保護裝置，該保護裝置係供裝設一具備軟管之針頭，保護裝置主要由盒蓋、盒座及壓板組成，其中盒蓋於一壁面設置一第一扣部及一第一卡固部，而盒座一壁面係設置一第二扣部及一第二卡固部，未使用針頭前可運用前述各扣部相互扣合以便醫護人員隨時打開並使用針頭，使用完畢後則利用各卡固部相互卡死以防止盒蓋再次被打開，導致針頭外露而發生憾事，由於第一扣部及第二扣部於扣合後的高度足以讓第一卡固部及第二卡固部無法接觸並卡合，因此在未使用前不會造成盒蓋與盒座卡死，另外，利用前述盒蓋內的壓板可針對盒座內之軟管壓制固定以避免容易軟管抽出而造成保護裝置失效之情事發生，因此運用本創作可達到防範針頭刺傷人之功效。
