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    • 10. 发明授权
    • Flexible valve rotator
    • 柔性阀旋转器
    • US6093184A
    • 2000-07-25
    • US850412
    • 1997-05-02
    • Louis A. CampbellJoseph A. SauterThomas W. Lytle, IV
    • Louis A. CampbellJoseph A. SauterThomas W. Lytle, IV
    • A61F2/24A61B17/00
    • A61F2/2427
    • A heart valve prosthesis rotator having a flexible drive for flexibly turning a heart valve. One embodiment has a shaft constructed from elastically deformable metal alloy such as super elastic nickel-titanium alloy. Another embodiment has a shaft constructed of surgical tubing. Yet another embodiment also has an annealed stainless steel shaft which can be bent by the surgeon interoperatively. The shaft will retain its shape after bending. Surrounding the shaft is a drive coil which connects a rotator head at a proximal end of the shaft to a drive knob at a distal end of the shaft and adjacent a handle. By turning the drive knob, a surgeon can turn the rotator head, thus orienting the prosthetic heart valve. Torsional motion is carried along the path defined by the bendable shaft so that the rotator head can be turned without displacing the handle of the heart valve rotator.
    • 一种具有灵活转动心脏瓣膜的柔性驱动器的心脏瓣膜假体旋转器。 一个实施例具有由诸如超弹性镍钛合金的弹性变形金属合金构成的轴。 另一实施例具有由外科管构成的轴。 另一实施例还具有可由外科医生互相弯曲的退火不锈钢轴。 弯曲后轴将保持其形状。 围绕轴是驱动线圈,其将轴的近端处的旋转头连接到轴的远端处的驱动旋钮并且与手柄相邻。 通过旋转驱动旋钮,外科医生可以转动旋转头,从而定向假体心脏瓣膜。 沿着由可弯曲轴限定的路径进行扭转运动,使得旋转头可以在不移动心脏瓣膜旋转器的手柄的情况下旋转。