TSUANG, YANG HWEI,曾永辉,曾永輝,LIANG, HUANG CHIEN,梁晃千,梁晃千,CHIANG, CHANG JUNG,江长蓉,江長蓉,CHEN, CHIA HSIEN,陈加宪,陳加憲,TSUANG, FON YIH,曾峰毅,曾峰毅,TSAI, YUNG FANG,蔡永芳,蔡永芳
申请号：
TW100140433
公开号：
TWI458460B
申请日:
2011.11.04
申请国别(地区):
TW
年份:
2014
代理人:
摘要：
A bone screw and a bone screwing assembly using the same are provided. The bone screw is adapted for a bone. The bone includes a cortical portion and a cancellous portion. The cortical portion covers the cancellous portion. The bone screw includes a body and a screwing head. The body has a connecting end, a screwing end, a boundary location, a thread surface and a non-thread surface. The screwing end is opposite to the connecting end. The boundary location is located between the connecting end and the screwing end. The non-thread surface is located between the connecting end and the boundary location. The thread surface is located between the boundary location and the screwing end. The screwing head is connected to the connecting end of the body. When the screwing end of the bone screw is screwed into the cancellous portion of the bone, chips of the cancellous portion is moved along the thread surface towards the non-thread surface to be stacked between the non-thread surface and the bone.一種骨螺釘及應用其之骨鎖固組件。骨螺釘應用於一骨頭。骨頭包括一緻密部及一鬆質部。緻密部包覆鬆質部。骨螺釘包括一主體及一鎖固頭。主體具有一連接端、一鎖入端、一交界位置、一螺紋表面及一無螺紋表面。鎖入端相對於連接端。交界位置位於連接端與鎖入端之間。無螺紋表面位於連接端與交界位置之間。螺紋表面位於交界位置與鎖入端之間。鎖固頭連接於主體的連接端。當骨螺釘的鎖入端鎖入骨頭的鬆質部時,鬆質部的碎屑係沿著螺紋表面往無螺紋表面移動,以堆置在無螺紋表面與骨頭之間。110...骨螺釘111...主體111e1...連接端111e2...鎖入端111n...無螺紋表面111t...螺紋表面111t1...牙頂111t2...牙根111t3...牙深113...鎖固頭Lb...交界位置w1、w2...連線θ...夾角
