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1. 发明授权

US07329123B2 Air-driven cutting device for medical treatment 有权
标题翻译：用于医疗的气动切割装置
公开(公告)号：US07329123B2
公开(公告)日：2008-02-12
申请号：US10434909
申请日：2003-05-09
申请人： Noriyuki Tanaka , Shozo Nakayama , Hirofumi Jikuhara , Naruo Wada
发明人： Noriyuki Tanaka , Shozo Nakayama , Hirofumi Jikuhara , Naruo Wada
IPC分类号： A61C1/05
CPC分类号： A61C1/05 , A61C1/057 , F16C33/7823 , F16C41/001 , Y10S415/904
摘要： A dental cutting device has a head portion (10) which accommodates a rotary cylinder (20) for holding a cutting tool (22), and a turbine blade (21) mounted around and secured on the rotary cylinder (20). Air fed from an air-supply port (24) is blown onto the turbine blade to rotate the same, and the air blown onto the turbine blade is exhausted from the exhaust port (25). The head portion has a first chamber (26) which is located at a portion confronting the outer peripheral end portion of the turbine blade and which extends in a direction orthogonal to the central axis of the rotary cylinder, and second chambers (27, 28) which are located adjacent to one or both ends of the turbine blade along the direction of the central axial and which communicate with the first chamber.
摘要翻译：牙科切割装置具有容纳用于保持切割工具（22）的旋转圆筒（20）的头部（10）和安装在旋转圆筒（20）周围并固定在其上的涡轮叶片（21）。从供气口（24）供给的空气被吹送到涡轮叶片上以使其旋转，并且吹送到涡轮叶片上的空气从排气口（25）排出。所述头部具有第一室（26），所述第一室（26）位于与所述涡轮叶片的外周端部相对的部分上，并且在与所述旋转圆筒的中心轴线正交的方向上延伸的第二室，以及第二室（27,28）其沿着中心轴线的方向位于涡轮机叶片的一端或两端附近并且与第一腔室连通。

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