The invention includes a shadowless lamp device, a suction filter device and a surgical instrument device. The shadowless lamp device has a housing portion and an illumination portion. The air suction filtering device is disposed in the accommodating portion and includes an air inlet portion, a guiding portion, a suction portion, a filtering portion and an exhaust portion. The surgical instrument device is used for performing surgery on a stagnant area； the air inlet portion sucks the gas generated by the operation in the detention area adjacent to the surgical instrument during the operation of the surgical instrument device； the pumping portion forces the gas to enter through the guiding portion After filtering, the filter unit becomes a filtered gas and is discharged from the exhaust unit. Therefore, the case has the advantages of being able to effectively solve the problem of gas stagnation under the shadowless lamp, the movable guiding portion is advantageous for adjusting the positioning and inhaling position, and the ultraviolet light lamp can be added to improve the sterilization effect.本發明係包括一無影燈裝置、一抽氣過濾裝置及一手術器具裝置。無影燈裝置具有一容納部及一照明部。抽氣過濾裝置設於容納部內，並包括一進氣部、一導引部、一抽氣部、一過濾部及一排氣部。手術器具裝置用以朝一滯留區進行手術；進氣部於手術器具裝置進行手術的過程中，於鄰近手術器具處吸除滯留區內因手術而產生之氣體；抽氣部強制氣體經導引部進入過濾部過濾後，變成一過濾後之氣體，從排氣部排出。故，本案達到兼具可以有效解決無影燈下氣體滯流之問題、可移動之導引部利於調整定位吸氣位置，可增設紫外光燈提高殺菌效果等優點。
