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 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 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.
立管内部核心是空心的(管中管)，留给钻柱使用。
The riser's inner hollow core (a pipe within a pipe) is reserved for the drill string.
空心玻璃微珠的滚动性能好，可提高机械钻速，从而显著提高钻井效率。
Hollow glass microspheres has a good rolling performance, and it can increase the drilling rate, and Significantly improve the drilling efficiency.
螺旋钻头底部阀门防止钻进过程中钻屑进入到空心的混凝土管中，当钻杆提出同时混凝土浆注入时，钻杆底部的阀门将被打开。
The valve at the bottom of auger can prevent drilling bits entering hollow pipe during operation. When drilling pipe is taken out and concrete grout is injected, the valve will be opened.
螺旋钻头底部阀门防止钻进过程中钻屑进入到空心的混凝土管中，当钻杆提出同时混凝土浆注入时，钻杆底部的阀门将被打开。
The valve at the bottom of auger can prevent drilling bits entering hollow pipe during operation. When drilling pipe is taken out and concrete grout is injected, the valve will be opened.
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