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    Tissue welding and cutting apparatus and method
    7.
    发明授权
    Tissue welding and cutting apparatus and method 有权
    组织焊接和切割设备及方法

    公开(公告)号：US08197472B2

    公开(公告)日：2012-06-12

    申请号：US11090750

    申请日：2005-03-25

    申请人： Liming Lau ,  Arnold M. Escano ,  Jerry Jarrard ,  Samuel Ho ,  Ryan C. Abbott ,  Arthur M. Lin ,  Jesse McQuiston ,  Kelly L. Dang

    发明人： Liming Lau ,  Arnold M. Escano ,  Jerry Jarrard ,  Samuel Ho ,  Ryan C. Abbott ,  Arthur M. Lin ,  Jesse McQuiston ,  Kelly L. Dang

    IPC分类号： A61B18/04

    CPC分类号： A61B18/085 ,  A61B17/29 ,  A61B18/1445 ,  A61B90/03 ,  A61B2017/00084 ,  A61B2017/00353 ,  A61B2017/00504 ,  A61B2017/2912 ,  A61B2017/2936 ,  A61B2017/2945 ,  A61B2017/3445 ,  A61B2018/1432

    摘要： A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element. A force-limiting mechanism provided either within the control handle, in the elongated shaft, or at the jaws limits the pressure applied to the tissue by the jaws to ensure that the tissue is severed and the ends effectively welded within a short amount of time.

    摘要翻译： 用于切断和焊接组织，特别是血管的手术设备和方法。 该装置包括细长轴，其在其远端具有一对相对可动的钳口。 其中一个钳口上的第一加热元件适于加热至第一温度并在组织内形成焊接区域，而其中一个钳口上的第二加热元件适于加热至第二温度并切断组织 在焊接区域内。 第一和第二加热元件可以设置在相同或相对的夹爪上。 设置在细长轴的近端的控制手柄包括用于打开和关闭钳口的控制器，并且可以包括用于通过第一和第二加热元件发送电流的致动器。 第一和第二加热元件可以串联电连接，并且第一加热元件可以分叉，使得其作为第二加热元件传导大约电流的一半。 设置在控制手柄，细长轴或钳口内的力限制机构限制由钳口施加到组织上的压力，以确保组织被切断并且端部在短时间内有效地焊接。

    Endoscopic vessel harvesting system components
    8.
    发明申请
    Endoscopic vessel harvesting system components 有权
    内窥镜血管收集系统部件

    公开(公告)号：US20080306335A1

    公开(公告)日：2008-12-11

    申请号：US11446024

    申请日：2006-06-01

    申请人： Liming Lau ,  Peter L. Callas ,  Michael C. Stewart ,  Geoffrey H. Willis ,  Ryan C. Abbott ,  Charles J. Adam ,  Kimberly D. Barkman ,  Albert K. Chin ,  Kenny L. Dang ,  Joseph N. Lamberti ,  Arthur M. Lin ,  Ravi Pamnani

    发明人： Liming Lau ,  Peter L. Callas ,  Michael C. Stewart ,  Geoffrey H. Willis ,  Ryan C. Abbott ,  Charles J. Adam ,  Kimberly D. Barkman ,  Albert K. Chin ,  Kenny L. Dang ,  Joseph N. Lamberti ,  Arthur M. Lin ,  Ravi Pamnani

    IPC分类号： A61B1/015 ,  A61B1/018

    CPC分类号： A61B17/00008 ,  A61B1/126 ,  A61B90/361 ,  A61B90/70 ,  A61B2017/320044

    摘要： Components for an endoscopic vessel harvesting system suitable for harvesting target vessels such as the saphenous vein or radial artery for cardiac artery bypass graft surgery. The main components of such systems include a vessel dissector and a vessel harvester, both of which work in conjunction with a separately provided endoscope. The vessel dissector is an elongated cannula having a blunt tip for separating layers of facial around vessels. The tip may be movable, and is typically transparent to permit viewing forward of the tip using the endoscope. Internal features of the tip may reduce glare back to the endoscope. Several devices improve visibility through the tip by reducing interference from tissue or fluid on the tip. The vessel harvester also has an elongated cannula for receiving the endoscope. Several tools within the harvester permit manipulation, severing, and sealing of vessels forward of the distal end. The tool for manipulating vessels may have a low-profile for increased visibility of operation, and may be coupled to the cannula with a damping mechanism to reduce the possibility of avulsion of the vessels. Various vessel cutting and sealing devices are provided that may accommodate various sizes of vessels and improve cutting and sealing efficacy.

    摘要翻译： 适用于收集目标血管如隐静脉或桡动脉用于心脏动脉旁路移植手术的内窥镜血管收获系统的组件。 这种系统的主要部件包括容器分离器和容器收集器，两者都与单独提供的内窥镜一起工作。 血管分离器是具有钝头的细长插管，用于分隔血管周围的面部层。 尖端可以是可移动的，并且通常是透明的，以允许使用内窥镜观察尖端的前方。 尖端的内部特征可以减少眩光回内窥镜。 几个设备通过减少尖端上的组织或液体的干扰来改善尖端的可见性。 容器收割机还具有用于接收内窥镜的细长套管。 收割机内的几个工具允许在远端前方操纵，切断和密封容器。 用于操纵血管的工具可以具有较小的轮廓以提高手术的可视性，并且可以用阻尼机构联接到套管，以减少血管撕脱的可能性。 提供了可容纳各种尺寸的容器并提高切割和密封功效的各种容器切割和密封装置。

    Tissue welding and cutting apparatus and method
    9.
    发明申请
    Tissue welding and cutting apparatus and method 有权
    组织焊接和切割设备及方法

    公开(公告)号：US20060217706A1

    公开(公告)日：2006-09-28

    申请号：US11090750

    申请日：2005-03-25

    申请人： Liming Lau ,  Arnold Escano ,  Jerry Jarrard ,  Sam Ho ,  Ryan Abbott ,  Arthur Lin ,  Jesse McQuiston ,  Peter Callas ,  Geoffrey Willis ,  Michael Stewart ,  Kimberly Barkman ,  Joseph Lamberti ,  Kenny Dang

    发明人： Liming Lau ,  Arnold Escano ,  Jerry Jarrard ,  Sam Ho ,  Ryan Abbott ,  Arthur Lin ,  Jesse McQuiston ,  Peter Callas ,  Geoffrey Willis ,  Michael Stewart ,  Kimberly Barkman ,  Joseph Lamberti ,  Kenny Dang

    IPC分类号： A61B18/18

    CPC分类号： A61B18/085 ,  A61B17/29 ,  A61B18/1445 ,  A61B90/03 ,  A61B2017/00084 ,  A61B2017/00353 ,  A61B2017/00504 ,  A61B2017/2912 ,  A61B2017/2936 ,  A61B2017/2945 ,  A61B2017/3445 ,  A61B2018/1432

    摘要： A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element. A force-limiting mechanism provided either within the control handle, in the elongated shaft, or at the jaws limits the pressure applied to the tissue by the jaws to ensure that the tissue is severed and the ends effectively welded within a short amount of time.

    摘要翻译： 用于切断和焊接组织，特别是血管的手术设备和方法。 该装置包括细长轴，其在其远端具有一对相对可动的钳口。 其中一个钳口上的第一加热元件适于加热至第一温度并在组织内形成焊接区域，而其中一个钳口上的第二加热元件适于加热至第二温度并切断组织 在焊接区域内。 第一和第二加热元件可以设置在相同或相对的夹爪上。 设置在细长轴的近端的控制手柄包括用于打开和关闭钳口的控制器，并且可以包括用于通过第一和第二加热元件发送电流的致动器。 第一和第二加热元件可以串联电连接，并且第一加热元件可以分叉，使得其作为第二加热元件传导大约电流的一半。 设置在控制手柄，细长轴或钳口内的力限制机构限制由钳口施加到组织上的压力，以确保组织被切断并且端部在短时间内有效地焊接。