The invention pertains to medical devices, in particular to an intramedullary nail hollow drill for the treatment of tibia, femur and other human tubular bones at the fracture site.
本发明属医疗器械，具体涉及一种胫骨、股骨等人体管状骨头骨折部位治疗用的髓内钉空心钻。
The utility model relates to an intramedullary nail hollow drill for treating tubular bone fracture, as shin bone tibia and femoral bone or the like, belonging to medical equipment.
本实用新型属医疗器械，具体涉及一种胫骨、股骨等人体管状骨头骨折部位治疗用的髓内钉空心钻。
The variation of normal stress in soil surrounding a drill-and-grout soil nail during drilling, grouting and pull-out is studied through both laboratory pull-out tests and numerical simulation.
抗拔强度的大小取决于拔出过程中作用于土钉表面的法向应力的大小。
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