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22 条记录 (耗时 0.036 秒)

    Systems and methods for electrosurgical removal of the stratum corneum
    5.
    发明授权
    Systems and methods for electrosurgical removal of the stratum corneum 失效
    用于电外科切除角质层的系统和方法

    公开(公告)号：US07758537B1

    公开(公告)日：2010-07-20

    申请号：US09293231

    申请日：1999-04-16

    申请人： Stephen M. Brunell ,  Jean Woloszko ,  Michael A. Baker ,  Hira V. Thapliyal ,  Philip E. Eggers

    发明人： Stephen M. Brunell ,  Jean Woloszko ,  Michael A. Baker ,  Hira V. Thapliyal ,  Philip E. Eggers

    IPC分类号： A61B17/20

    CPC分类号： A61N1/06 ,  A61B18/1402 ,  A61B2017/00761

    摘要： The present invention provides systems, apparatus and methods for removing the outer layer, or stratum corneum, of a patient's skin. In one aspect of the invention, a method includes positioning an active electrode adjacent to or near a target site on a patient's outer skin, and applying a sufficient high frequency voltage to the active electrode to remove the stratum corneum without removing the entire epidermis layer. In this manner, the present invention removes dead and/or damaged skin cells on the surface of the skin which improves the overall appearance of the skin. In addition, this process helps to stimulate the bodies own rejuvenation process. In some embodiments, this rejuvenation process occurs by the actual removal of the stratum corneum, which accelerates the regrowth of new cell layers in the skin. In other embodiments, thermal energy is applied to the underlying epidermis and/or dermis to stimulate the growth of new collagen. In both of these embodiments, the skin appears healthier and, in some cases, small wrinkles are removed or reduced.

    摘要翻译： 本发明提供了用于去除患者皮肤的外层或角质层的系统，装置和方法。 在本发明的一个方面，一种方法包括将活动电极定位在患者外皮上的靶位置附近或附近，以及向活性电极施加足够的高频电压以去除角质层而不去除整个表皮层。 以这种方式，本发明除去皮肤表面的死皮和/或受损的皮肤细胞，从而改善皮肤的整体外观。 此外，这个过程有助于刺激身体自身的复兴过程。 在一些实施方案中，这种复原过程通过实际去除角质层而发生，这加速了皮肤中新细胞层的再生长。 在其它实施方案中，将热能施加到下面的表皮和/或真皮以刺激新胶原的生长。 在这两个实施方案中，皮肤看起来更健康，并且在一些情况下，小的皱纹被去除或减少。

    Electrosurgical systems and methods for the removal of pacemaker leads
    8.
    发明授权
    Electrosurgical systems and methods for the removal of pacemaker leads 失效
    用于去除起搏器导线的电外科系统和方法

    公开(公告)号：US06183469B2

    公开(公告)日：2001-02-06

    申请号：US09002315

    申请日：1998-01-02

    申请人： Hira V. Thapliyal ,  Philip E. Eggers ,  Katherine M. Williams ,  Michael A. Baker ,  Phillip M. Olsen

    发明人： Hira V. Thapliyal ,  Philip E. Eggers ,  Katherine M. Williams ,  Michael A. Baker ,  Phillip M. Olsen

    IPC分类号： A61B1814

    CPC分类号： A61B18/1206 ,  A61B18/1233 ,  A61B18/1485 ,  A61B18/1492 ,  A61B2017/003 ,  A61B2017/22038 ,  A61B2018/00214 ,  A61B2018/0041 ,  A61B2018/00422 ,  A61B2018/00577 ,  A61B2018/00583 ,  A61B2018/00702 ,  A61B2018/00827 ,  A61B2018/1213 ,  A61B2018/1253 ,  A61B2018/1273 ,  A61B2018/1467 ,  A61B2018/1472 ,  A61B2018/162 ,  A61B2218/002 ,  A61B2218/007 ,  A61B2218/008

    摘要： The present invention is directed to systems, methods and apparatus for removing implanted objects from a patient's body, particularly implanted endocardial or epicardial pacemaker leads and transvenous defibrillation leads from a patient's heart. In one aspect of the invention, an electrosurgical catheter is advanced to a position within the thoracic cavity adjacent a portion of a pacemaker lead that is affixed to heart tissue. Preferably, the catheter is advanced over the pacemaker lead, i.e., using the pacemaker lead as a guidewire, to facilitate this positioning step. Once the distal end of the catheter reaches a blockage, or a portion of the lead that is attached to fibrous scar tissue, a high frequency voltage difference is applied between one or more electrode terminal(s) at the distal end of the catheter and one or more return electrode(s) to remove the scar tissue around the lead. The catheter is then advanced further along the lead until it reaches another blockage caused by fibrous scar tissue, and the process is continued until the catheter reaches the distal tip of the lead in the myocardium. At this point, the distal tip may be severed from the rest of the lead, or pulled out of the myocardial tissue in a conventional manner. The scar tissue around the pacemaker lead is precisely ablated before removing the lead, which minimizes or eliminates the risks associated with mechanical traction and countertraction, such as disruption of the heart wall, lead breakage with subsequent migration and the like.

    摘要翻译： 本发明涉及用于从患者体内去除植入物体的系统，方法和装置，特别是植入心内膜或心外膜起搏器引线和来自患者心脏的经静脉除颤引线。 在本发明的一个方面，电外科导管被推进到靠近与心脏组织固定的起搏器引线的一部分相邻的胸腔内的位置。 优选地，导管在起搏器引线上前进，即使用起搏器引线作为导丝，以便于该定位步骤。 一旦导管的远端到达阻塞或者连接到纤维性瘢痕组织的引线的一部分，则在导管远端的一个或多个电极端子和一个或多个电极端子之间施加高频电压差 或更多的返回电极以去除铅周围的瘢痕组织。 然后导管沿着引线进一步前进，直到达到由纤维性瘢痕组织引起的另一个阻塞，并且继续该过程直到导管到达心肌中的引线的远端。 在这一点上，远端尖端可以从导线的其余部分切断，或以常规方式从心肌组织拉出。 在除去铅之前，起搏器引线周围的瘢痕组织被精确地消融，这使得最小化或消除与机械牵引和反向相关的风险，例如心脏壁的破坏，随后的迁移等引起的断裂。

    Electrosurgical method for the removal of pacemaker leads
    9.
    发明授权
    Electrosurgical method for the removal of pacemaker leads 有权
    电除去起搏器导线的电外科手术

    公开(公告)号：US06379351B1

    公开(公告)日：2002-04-30

    申请号：US09507366

    申请日：2000-02-18

    申请人： Hira V. Thapliyal ,  Philip E. Eggers ,  Katherine M. Williams ,  Michael A. Baker ,  Phillip M. Olsen

    发明人： Hira V. Thapliyal ,  Philip E. Eggers ,  Katherine M. Williams ,  Michael A. Baker ,  Phillip M. Olsen

    IPC分类号： A61B1814

    CPC分类号： A61B18/1206 ,  A61B18/1233 ,  A61B18/1485 ,  A61B18/1492 ,  A61B2017/003 ,  A61B2017/22038 ,  A61B2018/00214 ,  A61B2018/0041 ,  A61B2018/00422 ,  A61B2018/00577 ,  A61B2018/00583 ,  A61B2018/00702 ,  A61B2018/00827 ,  A61B2018/1213 ,  A61B2018/1253 ,  A61B2018/1273 ,  A61B2018/1467 ,  A61B2018/1472 ,  A61B2018/162 ,  A61B2218/002 ,  A61B2218/007 ,  A61B2218/008

    摘要： The present invention is directed to systems, methods and apparatus for removing implanted objects from a patient's body, particularly implanted endocardial or epicardial pacemaker leads and transvenous defibrillation leads from a patient's heart. In one aspect of the invention, an electrosurgical catheter is advanced to a position within the thoracic cavity adjacent a portion of a pacemaker lead that is affixed to heart tissue. Preferably, the catheter is advanced over the pacemaker lead, i.e., using the pacemaker lead as a guidewire, to facilitate this positioning step. Once the distal end of the catheter reaches a blockage, or a portion of the lead that is attached to fibrous scar tissue, a high frequency voltage difference is applied between one or more electrode terminal(s) at the distal end of the catheter and one or more return electrode(s) to remove the scar tissue around the lead. The catheter is then advanced further along the lead until it reaches another blockage caused by fibrous scar tissue, and the process is continued until the catheter reaches the distal tip of the lead in the myocardium. At this point, the distal tip may be severed from the rest of the lead, or pulled out of the myocardial tissue in a conventional manner. The scar tissue around the pacemaker lead is precisely ablated before removing the lead, which minimizes or eliminates the risks associated with mechanical traction and countertraction, such as disruption of the heart wall, lead breakage with subsequent migration and the like.

    摘要翻译： 本发明涉及用于从患者体内去除植入物体的系统，方法和装置，特别是植入心内膜或心外膜起搏器引线和来自患者心脏的经静脉除颤引线。 在本发明的一个方面，电外科导管被推进到靠近与心脏组织固定的起搏器引线的一部分相邻的胸腔内的位置。 优选地，导管在起搏器引线上前进，即使用起搏器引线作为导丝，以便于该定位步骤。 一旦导管的远端到达阻塞或者连接到纤维性瘢痕组织的引线的一部分，则在导管远端的一个或多个电极端子和一个或多个电极端子之间施加高频电压差 或更多的返回电极以去除铅周围的瘢痕组织。 然后导管沿着引线进一步前进，直到达到由纤维性瘢痕组织引起的另一个阻塞，并且继续该过程直到导管到达心肌中的引线的远端。 在这一点上，远端尖端可以从导线的其余部分切断，或以常规方式从心肌组织拉出。 在除去铅之前，起搏器引线周围的瘢痕组织被精确地消融，这使得最小化或消除与机械牵引和反向相关的风险，例如心脏壁的破坏，随后的迁移等引起的断裂。