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    • 7. 发明授权
    • Angioplasty apparatus facilitating rapid exchanges
    • 血管成形术装置促进快速交流
    • US06585657B2
    • 2003-07-01
    • US09906912
    • 2001-07-16
    • Paul G. Yock
    • Paul G. Yock
    • A61B814
    • A61M25/0029A61B18/245A61M25/0021A61M25/0032A61M25/0045A61M25/0071A61M25/104A61M2025/0034A61M2025/0183A61M2025/1093
    • The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
    • 本发明提供了一种嵌套管插管,其包括外部和内部细长管状构件,两者均具有近端,远端和其间的内腔。 内部管状构件在其远端处被密封并且基本同轴地嵌套在外部管状构件的内腔中,使得内部和外部管状构件之间的间隙限定第二腔,而第一腔是内部管状构件的内腔 管状构件。 管状套筒同轴地设置在内管状构件和外管状构件之间。 气球安装在外部管状构件的远侧区域上并与第一腔连通。 套管还包括近端或远端的气囊封堵器并且与第二内腔连通的端口。 公开了制造这些装置的方法。
    • 8. 发明授权
    • Treating a totally or near totally occluded lumen
    • 治疗完全或接近完全闭塞的管腔
    • US6027450A
    • 2000-02-22
    • US368314
    • 1994-12-30
    • Peter S. BrownPaul G. Yock
    • Peter S. BrownPaul G. Yock
    • A61B17/22A61B18/00A61B19/00A61B8/00
    • A61B17/320783A61B17/320758A61B18/00A61B2090/3782
    • A method and system for recanalizing a totally or near totally occluded body lumen such as an artery which has an elongated catheter shaft with means such as a cutting or ablating element at the distal end of the shaft to remove occluding material and with ultrasonic imaging means preferably located on the shaft proximal to the cutting or ablating element to allow the operator to maintain the radial position of the distal end of the catheter shaft within the body lumen so that no contact is made between the cutting or ablating means and the wall defining the body lumen. The imaging system preferably includes one or more ultrasonic transducers which emit ultrasound in a direction having a substantial radial component, or a substantial axial component or both. Ultrasonic energy reflected from the wall defining the body lumen is received by transducers which generate signals representing the received ultrasonic energy, which in turn are used to form an image of the wall on a video monitor and the radial location of the distal end of the catheter shaft or the means to remove occluding material. The image projected on the video monitor may then be used by the physician to control the position of the distal end of the catheter shaft and/or the means to remove occluding material within the body lumen.
    • 一种完全或几乎完全闭塞的体腔的方法和系统,例如动脉,该动脉具有细长的导管轴,在轴的远端具有诸如切割或切除元件的装置以去除封闭材料,并且优选使用超声成像装置 位于靠近切割或切除元件的轴上,以允许操作者将导管轴的远端的径向位置保持在体腔内,使得在切割或消融装置和限定身体的壁之间不接触 流明。 成像系统优选地包括一个或多个超声波换能器,其在具有实质的径向分量的方向或相当大的轴向分量或二者上发射超声波。 从限定体腔的壁反射的超声能量由换能器接收,换能器产生表示接收到的超声波能量的信号,其又用于在视频监视器上形成壁的图像,并且导管远端的径向位置 轴或去除堵塞材料的方法。 投影在视频监视器上的图像然后可以被医师用来控制导管轴的远端的位置和/或去除体腔内的封闭材料的装置。