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    • 51. 发明授权
    • Rotating catheter probe using a light-drive apparatus
    • 使用光驱装置旋转导管探头
    • US07844321B2
    • 2010-11-30
    • US11567244
    • 2006-12-06
    • Thomas E. MilnerNathaniel J. Kemp
    • Thomas E. MilnerNathaniel J. Kemp
    • A61B5/00
    • A61B1/00163A61B1/0011A61B1/00172A61B5/0066A61B5/6852Y10T29/49826
    • The invention is a rotating tip catheter-imaging probe where electromagnetic energy is delivered to the distal end of a catheter and converted to mechanical energy using a light drive apparatus. The mechanical energy is then used to rotate a mirror that redirects light in fixed pattern on a sample. The rotating element of the light drive apparatus contains vanes, which rotate about an axis and positioned with bearings to minimize friction. A chamber encompasses the rotating element and is set to a vacuum pressure. The rotational speed of the catheter tip can be controlled by varying the optical power delivered to the vanes, the vacuum pressure in the chamber, or by a braking mechanism applied to the rotating element. The vanes may be shaped in a particular geometry to increase forces on the vanes from thermally driven gas flow.
    • 本发明是旋转尖端导管成像探针,其中电磁能量被传送到导管的远端并且使用光驱动装置转换成机械能。 然后机械能用于旋转将固定模式的光重定向在样品上的反射镜。 光驱装置的旋转元件包含叶片,叶片绕轴线转动并且与轴承一起定位以使摩擦力最小化。 腔室包围旋转元件并被设定为真空压力。 可以通过改变输送到叶片的光功率,腔室中的真空压力,或通过施加到旋转元件的制动机构来控制导管尖端的旋转速度。 叶片可以成形为特定的几何形状以增加来自热驱动气流的叶片上的力。