Study on Surgical Smoke Removal Performance of Suction Tube
CHEN Weiwei1a, LEI Lumin2, ZHANG Yuhong1a, ZHANG Mingyue1a,3, MA Yanlan1b
1. a. Graduate School; b. Medical Service Training Center, Chinese PLA General Hospital, Beijing 100853, China;
2. Department of Anesthesiology, The Fourth Medical Center, Chinese PLA General Hospital, Beijing 100048, China;
3. Department of Eight Convalescent, Beidaihe Rest and Recuperation Center of PLA, Qinhuangdao Hebei 066100, China
Abstract：Objective To design a suction tube for surgical smoke removal, which is nested outside the conventional suction device,
to explore the suction capacity of its design scheme. Methods The finite element model of smoke removal suction was established
with COMSOL Multiphysics, the flow at the outlet and the pressure and flow rate at the inlet of the smoke removal suction with three
kinds of opening design schemes (the diameter of the opening hole in the pipe wall was 1.5, 2.0, 2.5 mm) when was given a fixed
negative pressure were analyzed. Through analysis and comparison, an optimal design scheme was selected. Results The simulation
results showed that the flow rate and negative pressure of the suction tube decreased with the increase of the distance from the “Y”
interface. The maximum flow rate and surface negative pressure of the suction tube in the three schemes decreased with the increase
of the diameter of the opening hole. The flow rate at the “Y” interface increased with the increase of the opening diameter. The smoke
removal suction tube with a diameter of 2.5 mm had the largest flow (0.00009 m3/s) and the strongest suction capacity. Conclusion Through
the construction of the three-dimensional geometric model of smoke removal suction tube, the model was imported into COMSOL
software to further build the simulation model. And through the simulation of negative pressure suction environment, it is calculated
that the optimal design scheme is the smoke removal suction tube with the opening diameter of 2.5 mm. The results of this study can
provide a new method for the research and development of surgical instruments for medical staff in the operating room.
陈伟伟1a，雷璐敏2，张宇宏1a，张明月1a,3，马燕兰1b. 一种术中吸引管增设除烟性能的研究[J]. 中国医疗设备, 2023, 38(6): 38-42.
CHEN Weiwei1a, LEI Lumin2, ZHANG Yuhong1a, ZHANG Mingyue1a,3, MA Yanlan1b. Study on Surgical Smoke Removal Performance of Suction Tube. China Medical Devices, 2023, 38(6): 38-42.
