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    • 4. 发明授权
    • Arthroscopic cutter having curved rotatable drive
    • 关节镜刀具具有弯曲的可旋转驱动
    • US5437630A
    • 1995-08-01
    • US313407
    • 1994-09-27
    • Sean C. DanielAndrew J. JuknelisBarry J. Kauker
    • Sean C. DanielAndrew J. JuknelisBarry J. Kauker
    • A61B17/28A61B17/32A61M1/00A61B17/20
    • A61B17/32002A61B2017/2904A61B2017/2905A61B2017/320032A61B2217/005A61B2217/007
    • A powered rotatable surgical tissue working tool for chucking in a powered rotating surgical handpiece includes a tubular elongate outer member having a distal tip portion angled off the central axis of the proximal portion of such tubular outer member, by reason of a angled portion therebetween. A rotatable elongate inner member extends coaxially and rotatably within the tubular outer member and has a rotatably drivable proximal portion, a distal tip portion for tissue working interaction with the distal tip portion of the outer member, and a flexibly bendable portion therebetween rotatably housed within the angled portion of the outer member. An annular space between the inner and outer member communicates between the distal tip portions thereof and the handpiece for permitting suction withdraw of flowable materials from a surgical site axially through such annular space and to a suction source. The annular space is maintained between the flexible portion of the inner member and the angled portion of the outer member despite rotation of the inner member.
    • 用于夹持动力旋转外科手持机械的动力可旋转手术组织加工工具包括管状细长外部构件,其具有远离顶端部分,其远离该管状外部构件的近侧部分的中心轴线,由于它们之间的倾斜部分。 可旋转的细长内部构件在管状外部构件内同轴并可旋转地延伸,并且具有可旋转地驱动的近端部分,用于与外部构件的远侧末端部分进行组织加工相互作用的远侧末端部分,以及可旋转地容纳在外部构件内部的柔性可弯曲部分 外部构件的成角度部分。 内部和外部构件之间的环形空间在其远侧末端部分和手持件之间连通,用于允许从外科手术部位轴向通过这种环形空间抽吸可流动材料和抽吸源。 尽管内部构件的旋转,环形空间保持在内部构件的柔性部分和外部构件的成角度部分之间。