This creation is a kind of scalpel structure,Its owner will include a knife handle and a blade,When doctor's what can be allowed to operate by the cooperation of the knife handle and the blade,The angle and holding mode that scalpel can be adjusted flexibly are performed the operation,And the what blade bottom end mode is arranged in knife edge system,It can be reduced the sharp face of blade,It is more avoided that the knife edge is accidentally injured to generate,Tendon or other surrounding tissues are accidentally injured in surgical procedure to reduce,Also,Increase the connector to strengthen the bonding strength and stability of the knife handle Yu the blade,AndCooperate the modular cutting tool assembly of the handle Yu the tube-in-tube structure,More can advantageous what blade replacement,Cleaning,The advantages that sterilizing or abandoning.本創作為一種手術刀結構,其係主要包含一刀柄與一刀身,藉由該刀柄與該刀身之配合能夠讓醫師於操作時,可靈活調整手術刀之角度與握持方式進行手術,而刀鋒係設置於該刀身底端方式,能減少刀身之鋒利面,更能避免刀鋒誤傷產生,以降低手術過程中誤傷肌腱或其他周圍組織,又,增加該連接件以強化該刀柄與該刀身之連接強度與穩固性,且,配合該手柄與該套筒結構之組合式刀具,更可有利於刀身之替換、清潔、消毒或拋棄等優點。