Methods and apparatus for making precise incisions in body vessels
    4.
    发明授权
    Methods and apparatus for making precise incisions in body vessels 有权
    在体内精确切口的方法和装置

    公开(公告)号:US08377082B2

    公开(公告)日:2013-02-19

    申请号:US10694037

    申请日:2003-10-27

    IPC分类号: A61B17/22 A61B17/32

    摘要: Methods and apparatus employed in surgery involving making precise incisions through body vessel walls, particularly coronary arteries. A body vessel cutting instrument comprises an elongated instrument shaft extending between a shaft proximal end adapted to be manipulated outside the patient's body and a shaft distal end and having a shaft axis and first and second cutting blades supported at the shaft distal end. The first cutting blade extends substantially orthogonally or laterally to the shaft axis and has a first cutting edge extending along a trailing side, a cutting tip at the first cutting blade free end, and an atraumatic blunt surface along the leading side. The second cutting blade has a second cutting edge extending along a leading side, whereby the first and second cutting edges face one another and are brought together to slit a vessel wall.

    摘要翻译: 在手术中使用的方法和装置包括通过体血管壁,特别是冠状动脉进行精确切口。 身体血管切割仪器包括细长的仪器轴,其在适于被操纵在患者身体外部的轴近端和轴远端之间延伸并且具有轴轴线,以及支撑在所述轴远端处的第一和第二切割刀片。 第一切割刀片基本上垂直或横向地延伸到轴线,并且具有沿着后侧延伸的第一切割边缘,在第一切割刀片自由端处的切割尖端以及沿着前侧的无损伤钝角表面。 第二切割刀片具有沿着前侧延伸的第二切削刃,由此第一切削刃和第二切削刃彼此面对并且一起切开血管壁。