公开(公告)号：WO1996027337A1

公开(公告)日：1996-09-12

申请号：PCT/IB1996000158

申请日：1996-03-01

Applicant: VALLEYLAB INC.

Inventor： VALLEYLAB INC. ,  PLATT, Robert, C., Jr. ,  BEK, Robin, Badih

IPC: A61B17/36

CPC classification number: A61B18/042 ,  A61B2018/1213

Abstract: An apparatus and method for igniting plasma in a surgical system is disclosed. A corona discharge is generated on a surgical handpiece which is used to ignite a plasma arc (19) for surgical operations. The advantages include greater reliability and repeatability of plasma arc (19) ignition. The apparatus comprises a handpiece incorporating an active electrode, a passage for ionizable gas (12), and a corona return electrode (17). The corona return electrode (17) has a terminus on the holder (11) and near the distal end (20) of the holder (11). The corona return electrode (17) is electrically connected to the return path of the electrosurgical generator. A non-uniform electric field is generated between the active electrode (14) and the corona return electrode (17) of sufficient strength so that a corona is formed near the active electrode (14). A separate return electrode (17) may be on the patient (25), or the apparatus may be configured for bipolar electrosurgical operation by carrying the return electrode (17) on the handpiece. A dielectric material separates the active electrode (14) and the corona return electrode (17). There is substantially capacitive coupling between the active electrode (14) and the corona return electrode (17). There is substantially resistive coupling between the active electrode (14) and the return electrode (17).

Abstract translation: 公开了一种在外科手术系统中点燃血浆的装置和方法。 在用于点燃用于外科手术的等离子体电弧（19）的外科手持机上产生电晕放电。 优点包括提高等离子弧（19）点火的可靠性和重复性。 该装置包括结合有活性电极的手柄，可电离气体通道（12）和电晕返回电极（17）。 电晕返回电极（17）在保持器（11）上并且在保持器（11）的远端（20）附近具有末端。 电晕返回电极（17）电连接到电外科发生器的返回路径。 在有源电极（14）和电晕返回电极（17）之间产生足够强度的不均匀电场，使得在有源电极（14）附近形成电晕。 单独的返回电极（17）可以在患者（25）上，或者该装置可以被配置为通过在手持件上承载返回电极（17）来进行双极电外科操作。 电介质材料分离有源电极（14）和电晕返回电极（17）。 在有源电极（14）和电晕返回电极（17）之间存在大体上的电容耦合。 在有源电极（14）和返回电极（17）之间存在大体上的电阻耦合。

公开(公告)号：EP0814712A1

公开(公告)日：1998-01-07

申请号：EP96902402.0

申请日：1996-03-01

Applicant: VALLEYLAB, INC.

Inventor： PLATT, Robert, C., Jr. ,  BEK, Robin, Badih

IPC: A61B18

CPC classification number: A61B18/042 ,  A61B2018/1213

Abstract: An apparatus and method for igniting plasma in a surgical system is disclosed. A corona discharge is generated on a surgical handpiece which is used to ignite a plasma arc (19) for surgical operations. The advantages include greater reliability and repeatability of plasma arc (19) ignition. The apparatus comprises a handpiece incorporating an active electrode, a passage for ionizable gas (12), and a corona return electrode (17). The corona return electrode (17) has a terminus on the holder (11) and near the distal end (20) of the holder (11). The corona return electrode (17) is electrically connected to the return path of the electrosurgical generator. A non-uniform electric field is generated between the active electrode (14) and the corona return electrode (17) of sufficient strength so that a corona is formed near the active electrode (14). A separate return electrode (17) may be on the patient (25), or the apparatus may be configured for bipolar electrosurgical operation by carrying the return electrode (17) on the handpiece. A dielectric material separates the active electrode (14) and the corona return electrode (17). There is substantially capacitive coupling between the active electrode (14) and the corona return electrode (17). There is substantially resistive coupling between the active electrode (14) and the return electrode (17).