Percutaneous laparoscopic cholecystectomy instrument
    1.
    发明授权
    Percutaneous laparoscopic cholecystectomy instrument 失效
    经皮腹腔镜胆囊切除术

    公开(公告)号:US5171311A

    公开(公告)日:1992-12-15

    申请号:US763559

    申请日:1991-09-23

    IPC分类号: A61B18/14 A61M1/00

    摘要: An instrument for performing a percutaneous laparoscopic cholecystectomy includes a generally rigid, tubular body with a proximal end, a distal end and a lumen extending between these two ends and with a pair of bipolar electrodes projecting from the distal end of the tubular body and a handle member affixed to its proximal end. The outside diameter of the tubular body is sufficiently small that it can readily pass through a cannula inserted through a puncture made through the abdominal wall. A pair of conductors, connected at one end to the bipolar electrodes and at their other end to a source of radio frequency voltage, extend through the tube's lumen and a handle. Moreover, a fluid port may be formed through the handle so as to be in fluid communication with the lumen of the tube whereby fluids may be perfused through the instrument during its use or a suction may be applied to the proximal port for aspirating the surgical site. In one embodiment of the invention, the bipolar electrodes may be formed as conductive traces extending along the peripheral edges of a thin ceramic blade. In an alternative arrangement, the bipolar electrodes comprise first and second closley space J-spaced conductive hook members.

    摘要翻译: 用于进行经皮腹腔镜胆囊切除术的器械包括通常刚性的管状体,其具有近端,远端和在这两个端部之间延伸的内腔,以及从管状体的远端突出的一对双极电极和手柄 构件固定在其近端。 管状体的外径足够小,使得其可以容易地穿过插入通过腹壁制成的穿刺的套管。 在一端连接到双极电极并且在另一端连接到射频电压源的一对导体延伸穿过管的内腔和手柄。 此外,可以通过手柄形成流体端口以便与管腔流体连通,从而在使用过程中可以通过仪器灌注流体,或者可以将吸力施加到近端口以抽吸手术部位 。 在本发明的一个实施例中,双极电极可以形成为沿着薄陶瓷刀片的周边边缘延伸的导电迹线。 在替代布置中,双极电极包括第一和第二闭合空间J隔开的导电钩构件。

    Percutaneous laparoscopic cholecystectomy instrument
    2.
    发明授权
    Percutaneous laparoscopic cholecystectomy instrument 失效
    PERCUTANEOUS LAPAROSCOPIC CHOLECYSTECTOMY INSTRUMENT

    公开(公告)号:US5071419A

    公开(公告)日:1991-12-10

    申请号:US516740

    申请日:1990-04-30

    摘要: An instrument for performing a percutaneous laparoscopic cholecystectomy includes a generally rigid, tubular body with a proximal end, a distal end and a lumen extending between these two ends and with a pair of bipolar electrodes projecting from the distal end of the tubular body and a handle member affixed to its proximal end. The outside diameter of the tubular body is sufficiently small that it can readily pass through a cannula inserted through a puncture made through the abdominal wall. A pair of conductors, connected at one end to the bipolar electrodes and at their other end to a source of radio frequency voltage, extend through the tube's lumen and a handle. Moreover, a fluid port may be formed through the handle so as to be in fluid communication with the lumen of the tube whereby fluids may be perfused through the instrument during its use or a suction may be applied to the proximal port for aspirating the surgical site. In one embodiment of the invention, the bipolar electrodes may be formed as conductive traces extending along the peripheral edges of a thin ceramic blade. In an alternative arrangement, the bipolar electrodes comprise first and second closely spaced J-shaped conductive hook members.

    Angioplasty catheter assembly
    3.
    发明授权
    Angioplasty catheter assembly 失效
    血管成形术导管组件

    公开(公告)号:US4646742A

    公开(公告)日:1987-03-03

    申请号:US822385

    申请日:1986-01-27

    摘要: An angioplasty catheter having an outer tubular member and a coaxially aligned inner tubular member. The outer tube is of a first predetermined diameter over a majority of its length, but then tapers down, in a transition zone, to a second predetermined diameter less than the first and which extends to the catheter's distal tip. The inner tube has a distal end shaped to mate with the inside surface of the outer tube in the transition zone to form a seal when the inner tube is advanced in the distal direction. An expander is secured to the outer tube and inflatable by perfusing a fluid in the zone between the outer and inner tubes and through ports formed through the wall of the outer tube in the transition zone. By manipulating the proximal end of the inner tube, blood or other fluids may be perfused or exasperated and made to inflate or deflate the expander, the distal end of the inner tube acting as a valve, seating with the inner surface of the outer tube in the transition zone. The inner tube may be removed completely for maximum perfusion or for replacement with a guide wire or an optical fiber when performing laser angioplasty. The hub on the proximal end of the catheter body facilitates the manipulation of the aforementioned valve and the introduction of a perfusant along the length of the catheter body.

    摘要翻译: 一种血管成形术导管,其具有外部管状构件和同轴对准的内部管状构件。 外管在其大部分长度上具有第一预定直径,但是在过渡区域中逐渐变细到比第一预定直径小的第二预定直径,并延伸到导管的远端。 内管具有形状与过渡区域中的外管内表面配合的远端,以在内管沿远端方向前进时形成密封。 膨胀器被固定到外管并且可以通过在外管和内管之间的区域中灌注流体并且通过在过渡区中通过外管的壁形成的端口来充气。 通过操纵内管的近端,血液或其他流体可能被灌注或激怒,并使膨胀器膨胀或放气,内管的远端作为阀,与外管的内表面对准 过渡区。 当进行激光血管成形术时,内管可以被完全去除以用于最大灌注或用导线或光纤替代。 导管主体的近端上的毂有利于上述阀的操作和沿导管主体的长度引入灌注液。

    Ablation catheter with selectively deployable electrodes
    4.
    发明授权
    Ablation catheter with selectively deployable electrodes 失效
    消融导管与选择性可展开的电极

    公开(公告)号:US5057107A

    公开(公告)日:1991-10-15

    申请号:US656744

    申请日:1991-02-19

    摘要: A RF ablation catheter for removing athero-stenotic lesions or modifying the tissue characteristics of the interior walls of selected blood vessels is described. The catheter is characterized in having a tip member which during the initial placement of the catheter within the vascular system so that the distal tip member is disposed in a working relation with the lesion to be removed, means are provided for increasing the cross-sectional profile of the tip members to thereby cause it to move into engagement with the lesion to be excised. The application of an RF voltage across a pair of bipolar electrodes is used to create an electric arc for effecting the cutting action, or alternatively, just sufficient RF energy to sear or otherwise alter the tissue surfaces engaged by the distal tip member.

    摘要翻译: 描述了用于去除动脉粥样硬化狭窄病变或改变选定血管内壁的组织特征的RF消融导管。 导管的特征在于具有尖端构件,其在将导管初始放置在血管系统内期间使得远侧末端构件与待移除的病变处于工作关系中,提供用于增加横截面轮廓的装置 的尖端构件,从而使其移动成与待切除的病变接合。 在一对双极电极之间施加RF电压用于产生用于实现切割动作的电弧,或者替代地,仅仅具有足够的RF能量以消除或以其它方式改变由远端尖端部件接合的组织表面。

    Ablation catheter with selectively deployable electrodes
    5.
    发明授权
    Ablation catheter with selectively deployable electrodes 失效
    消融导管与选择性可展开的电极

    公开(公告)号:US5078717A

    公开(公告)日:1992-01-07

    申请号:US580782

    申请日:1990-09-10

    摘要: A RF ablation catheter for removing athero-stenotic lesions or modifying the tissue characteristics of the interior walls of selected blood vessels is described. The catheter has a distal tip member which is disposed in a working relation with the lesion to be removed during the initial placement of the catheter within the vascular system. Means are provided for increasing the cross-sectional profile of the tip member to thereby cause it to move into engagement with the lesion to be excised. The application of an RF voltage across a pair of bipolar electrodes is used to create an electric arc for effecting the cutting action, or alternatively, just sufficient RF energy to sear or otherwise alter the tissue surfaces engaged by the distal tip member.

    摘要翻译: 描述了用于去除动脉粥样硬化狭窄病变或改变选定血管内壁的组织特征的RF消融导管。 导管具有远端末端构件,该远侧末端构件以与导管在血管系统内的初始放置期间相对于待移除的病变处于工作关系而被设置。 提供了用于增加尖端构件的横截面轮廓从而使其移动成与被切除的病变接合的装置。 在一对双极电极之间施加RF电压用于产生用于实现切割动作的电弧,或者替代地,仅仅具有足够的RF能量以消除或以其它方式改变由远端尖端部件接合的组织表面。

    Ablation catheter with selectively deployable electrodes
    7.
    发明授权
    Ablation catheter with selectively deployable electrodes 失效
    消融导管与选择性可展开的电极

    公开(公告)号:US5125928A

    公开(公告)日:1992-06-30

    申请号:US656799

    申请日:1991-02-19

    摘要: A RF ablation catheter for removing athero-stenotic lesions or modifying the tissue characteristics of the interior walls of selected blood vessels is described. The catheter is characterized in having a tip member which during the initial placement of the catheter within the vascular system so that the distal tip member is disposed in a working relation with the lesion to be removed, means are provided for increasing the cross-sectional profile of the tip members to thereby cause it to move into engagement with the lesion to be excised. The application of an RF voltage across a pair of bipolar electrodes is used to create an electric arc for effecting the cutting action, or alternatively, just sufficient RF energy to sear or otherwise alter the tissue surfaces engaged by the distal tip member.

    摘要翻译: 描述了用于去除动脉粥样硬化狭窄病变或改变选定血管内壁的组织特征的RF消融导管。 导管的特征在于具有尖端构件,其在将导管初始放置在血管系统内期间使得远侧末端构件与待移除的病变处于工作关系中,提供用于增加横截面轮廓的装置 的尖端构件,从而使其移动成与待切除的病变接合。 在一对双极电极之间施加RF电压用于产生用于实现切割动作的电弧,或者替代地,仅仅具有足够的RF能量以消除或以其它方式改变由远端尖端部件接合的组织表面。

    APPARATUS FOR DELIVERY OF DEVICE AND ANTIMICROBIAL AGENT INTO TRANS-DERMAL CATHETER
    9.
    发明申请
    APPARATUS FOR DELIVERY OF DEVICE AND ANTIMICROBIAL AGENT INTO TRANS-DERMAL CATHETER 有权
    用于将装置和抗微生物剂递送到透明导管的装置

    公开(公告)号:US20100106102A1

    公开(公告)日:2010-04-29

    申请号:US12605963

    申请日:2009-10-26

    IPC分类号: A61L29/14

    摘要: An apparatus for delivery of an elongate member into the lumen of a trans-dermal catheter. In a preferred embodiment, the apparatus comprises a protective sheath configured to at least substantially surround an elongate member; and slidable member configured to travel along the protective sheath, the slidable member operatively coupled to the elongate member; wherein the elongate member is insertable into a lumen of a trans-dermal catheter by moving the slidable member along at least a part of the length of the protective sheath. In another embodiment, the apparatus comprises a protective sheath configured to at least substantially surround an elongate member; a slidable member configured to travel along the protective sheath, the slidable member operatively coupled to the elongate member; and a connecting member positioned on the distal end of the protective sheath, the connecting member configured to lock onto the distal end of a trans-dermal catheter; wherein the elongate member is insertable into the lumen of the trans-dermal catheter by moving the slidable member along at least a part of the length of the protective sheath.

    摘要翻译: 用于将细长构件递送到经皮导管的内腔中的装置。 在优选实施例中,该装置包括被配置为至少基本上围绕细长构件的保护护套; 以及可滑动构件,其构造成沿着所述保护护套行进,所述可滑动构件可操作地联接到所述细长构件; 其中所述细长构件通过沿着所述保护护套的长度的至少一部分移动所述可滑动构件而可插入到经皮导管的内腔中。 在另一个实施例中,该装置包括被配置为至少基本上围绕细长构件的保护套; 可滑动构件,其构造成沿着所述保护护套行进,所述可滑动构件可操作地联接到所述细长构件; 以及连接构件,所述连接构件定位在所述保护护套的远端上,所述连接构件构造成锁定在经皮导管的远端上; 其中所述细长构件通过沿着所述保护护套的长度的至少一部分移动所述可滑动构件而可插入所述经皮导管的内腔中。