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    • 2. 发明授权
    • Ultrasonic surgical blade and instrument having a gain step
    • 超声手术刀和仪器具有增益步长
    • US07163548B2
    • 2007-01-16
    • US10701588
    • 2003-11-05
    • Foster B. StulenSteven K. NeuenfeldtKevin L. Houser
    • Foster B. StulenSteven K. NeuenfeldtKevin L. Houser
    • A61B17/32A61C1/07A61C3/03
    • A61B17/320068A61B2017/22018A61B2017/320072A61B2017/32008A61B2017/320089A61B2217/005
    • An ultrasonic surgical blade, and an instrument, having a gain step. The blade body has, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step. The gain step is located between the second vibration antinode and the first vibration antinode. The gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration antinode and the first vibration antinode. The instrument includes the blade, a handpiece having an ultrasonic transducer, and an ultrasonic transmission rod whose proximal end is operatively connected to the ultrasonic transducer and whose distal end activates the blade. In one option, the first vibration antinode is the distal tip, and the gain step is located between the vibration node and the distal tip, resulting in an increased active length of the blade.
    • 一种具有增益步长的超声手术刀和仪器。 刀片体在超声外科手术刀体的任何半波长中具有第一振动波腹,振动节点,第二振动波腹和增益步长。 增益步骤位于第二振动波腹与第一振动波腹之间。 增益步长与振动节点间的距离大于第二振动波腹与第一振动波腹之间距离的5%。 仪器包括刀片,具有超声波换能器的手持件和超声波传输杆,其近端可操作地连接到超声波换能器,其远端激活刀片。 在一个选择中,第一振动波腹是远端,并且增益步骤位于振动节点和远侧末端之间,导致叶片的有效长度增加。