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    • 5. 发明授权
    • Multi-purpose phacoemulsification needle
    • 多用途晶状体乳化针
    • US08287484B2
    • 2012-10-16
    • US11416937
    • 2006-05-02
    • Paul W. Rockley
    • Paul W. Rockley
    • A61B17/20
    • A61F9/00745
    • In one aspect of the invention, a multi-purpose phacoemulsification needle comprises a needle body disposed about a centerline and has a lumen disposed therein. The lumen has a first cross-sectional area that is normal to the centerline. The needle further comprises a distal tip comprising an arcuate surface and a face with a port therein. The port has a second cross-sectional area in a plane generally parallel to the face and is in fluid communication with an internal cavity that has a third cross-sectional area normal to the centerline, the internal cavity being in fluid communication with the lumen. The needle is configured such that the third cross-sectional area is greater than either the first cross-sectional area or the second cross-sectional area. In another aspect of the invention, the needle comprises a plurality of fins projecting inwardly from the lumen.
    • 在本发明的一个方面,多用途晶状体乳化针包括围绕中心线设置并具有设置在其中的内腔的针体。 内腔具有与中心线正交的第一横截面积。 针还包括远端,其包括弓形表面和其中具有端口的面。 所述端口在大致平行于所述表面的平面中具有第二横截面面积,并且与内部空腔流体连通,所述内部空腔具有垂直于所述中心线的第三横截面积,所述内部空腔与所述内腔流体连通。 针被构造成使得第三横截面积大于第一横截面积或第二横截面面积。 在本发明的另一方面,针包括从内腔向内突出的多个翅片。