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Objective: In order to overcome the problems that bone rongeur and Kirschner forcep's less function and easy damage, trivial and inefficient, bulky volume, bone and needle broken edge is not neat, needle tail easy spatter wounding and other defects, integrated "U" shaped cutting edge rongeurs of pruning finger-toe and bending-truncating pin is desigened., Methods: Pruning-truncating rongeurs set the trimming, bending and shearing, straight and twisting, loading and unloading, filing and stripping, string devices, aintenance functions and other functions in one, compare with bone rongeurs in clinical application., Results: Pruning-truncating rongeurs are molding once, manipulation convenient, light and safe, anti damage and maintenance free, cost-effective., Conclusion: Pruning-truncating rongeurs are highly integrated and portable anti-lost, preparation instrument swift, man-machine coordination, sharp instrument injury prevention, to improve the operation efficiency.

Objective: In order to overcome the disadvantages of the common single handle cold scalpel such as cicatrix cutting inefficient, large amount of skin losses, margin concave and convex, cutting marks poor healing, a safe and general type of convenient instalation and instantly removable“A”shaped scalpel handle was developed., Methods: For the convenience of the single hand independent, cicatrix cutting smoothly and conveniently, man-machine design“A”shaped scalpel handle and application., Results: The“A”shaped scalpel handle has good precision and controllability. When loading or unloading the blades, it's convenient, efficient and safe, free choice of direction., Conclusion: The“A”shaped scalpel handle with cicatrix cutting single hand is independent, universal for al blades, can conveniently instal and instantly remove, is portable and easy to storage, has wide range of applications. The prevention of sharp instrument injuries reduces the occupation injury risks and improves operation efficiency

Objective: In order to overcome the problems that the ordinary sounder’s volume is bulky, has less function, is inconvenient to carry, its adaptation is weak, easy faling damage or occurrence of sharp instrument injury and other defects, the multifunctional portable universal safety type bone hole probe pen is developed., Methods: This pen set detection, loading and unloading, twisting and winding, straight, guide and maintenance functions in one. Take reference to contrast with ordinary sounder after surgery, experiment and teaching application., Results: This pen is a multipurpose, safe and universal, damage-resistant and portable, high cost-effective., Conclusions: This pen is easy to carry and store, the apparatus preparation is simple and quick, it can free instrument box, prevent of sharp injuries, improve the operating efficiency. Its adaptation is high, it is suitable both in peacetime and in wartime.