Abstract: Objective: By optimizing the allocation of open surgical instrument kits of tumor specialty, improve the operation efficiency of operating room, reduce the operation frequency of each set of operating room nurses and decontamination personnel. Methods: According to the actual needs of tumor surgery currently carried out by each surgical specialty, simplify the basic package of open surgical instruments of its professional tumor specialty, increase the single package of surgical instruments (used under special circumstances). Before and after optimization, the total number of each professional open surgical instrument basic package and single package, the weight of surgical instruments, surgeons' satisfaction with operating room nurses were counted, and calculated the time was saved. Results: After optimization, the total number of open surgical instruments in each surgical specialty of the hospital was reduced from 8519 to 7133, a total decrease of 1386, a decrease of 16.27%; 17.33 surgical instruments were reduced for each open surgical instrument basic package on average; reduced the total weight of sterilization of surgical instruments by 20958 kg; 416 seconds for instruments disposal during operation and 416 seconds for cleaning instruments after operation of operating room nurses were saved. Surgeons' satisfaction with the preparation of nurses in the operating room increased from 93.22% before simplification to 100% after simplification. Conclusion: Optimizing the allocation of tumor open surgical instrument package and removing the redundant surgical instruments in the original surgical package can shorten the time of counting and sorting surgical instruments during operation, shorten the washing time of postoperative surgical instruments, and significantly shorten the operation duration; reduce the weight of the basic surgical instrument package of each surgical specialty, which reduces the labor intensity of nurses and decontamination personnel in the operating room; improve the satisfaction of surgeons with nurses in the operating room.

Key words: operation room; optimize configuration; surgical instruments; operational efficiency; operation duration; scientific management; quality improvement