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1.发明授权
公开(公告)号：US4781175A
公开(公告)日：1988-11-01
申请号：US849950
申请日：1986-04-08
CPC分类号： A61B18/1206 , A61B18/042 , A61B18/12 , A61B18/14 , A61B18/1233 , A61B2018/0066 , A61B2018/00761 , A61B2018/00886 , A61B2018/1213
摘要： An electrosurgical technique of achieving coagulation involves conducting a predetermined ionizable gas in a jet to the tissue at a predetermined flow rate sufficient to clear natural fluids from the tissue and to substantially expose the tissue stroma. Electrical radio frequency energy is conducted to the tissue in ionized conductive pathways in the gas jet. To achieve fulguration, the electrical energy is conducted as arcs in the ionized conductive pathways. To achieve a non-contact type of electrosurgical desiccation, the electrical energy is conducted as a non-arcing diffuse current in the ionized conductive pathways.
摘要翻译： 实现凝血的电外科技术包括以足以从组织清除天然流体并且基本上暴露组织基质的预定流速将射流中的预定可电离气体导入组织。 电气射频能量在气体射流中被传导到电离导电通路中的组织。 为了实现发光，电能在电离导电路径中作为弧进行。 为了实现非接触式电外科干燥，电能在电离导电通路中作为非电弧扩散电流进行。
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公开(公告)号：USRE34432E
公开(公告)日：1993-11-02
申请号：US841433
申请日：1992-02-19
申请人： Carol Bertrand
发明人： Carol Bertrand
CPC分类号： A61B18/042 , A61B17/3203 , A61B18/14 , A61B18/1233 , A61B2018/00761 , A61B2018/00886 , A61B2018/1213
摘要： An electrosurgical generator in an electrosurgical unit (ESU) controls the repetition rate and the energy content of bursts of RF energy delivered to a gas jet supplied by the ESU, in order to maintain RF leakage current within acceptable limits while still achieving a sufficient state of ionization in the gas jet to reliably initiate the conduction of arcs to the tissue. The repetition rate of the RF bursts is substantially reduced in an inactive state when no arcs are delivered. A relatively small number of the RF bursts delivered during the inactive state have an increased or boosted energy content to assure an adequate ionization state in the gas jet.
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公开(公告)号：US4901720A
公开(公告)日：1990-02-20
申请号：US224301
申请日：1988-07-26
申请人： Carol Bertrand
发明人： Carol Bertrand
CPC分类号： A61B18/042 , A61B17/3203 , A61B18/14 , A61B18/1233 , A61B2018/00761 , A61B2018/00886 , A61B2018/1213
摘要： An electrosurgical generator in an electrosurgical unit (ESU) controls the repetition rate and the energy content of bursts of RF energy delivered to a gas jet supplied by the ESU, in order to maintain RF leakage current within acceptable limits while still achieving a sufficient state of ionization in the gas jet to reliably initiate the conduction of arcs to the tissue. The repetition rate of the RF bursts is substantially reduced in an inactive state when no arcs are delivered. A relatively small number of the RF bursts delivered during the inactive state have an increased or boosted energy content to assure an adequate ionization state in the gas jet.
摘要翻译： 电外科单元（ESU）中的电外科发生器控制输送到由ESU提供的气体射流的RF能量的突发的重复率和能量含量，以便将RF漏电流保持在可接受的限度内，同时仍然达到足够的 在气体射流中电离以可靠地启动电弧到组织的传导。 当没有电弧传递时，RF突发的重复率在非活动状态下显着减小。 在非活动状态期间递送的相对较少数量的RF突发具有增加或增强的能量含量，以确保气体射流中的足够的电离状态。
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公开(公告)号：US4901719A
公开(公告)日：1990-02-20
申请号：US224485
申请日：1988-07-26
CPC分类号： A61B18/042 , A61B17/3203 , A61B18/14 , A61B18/1233 , A61B2018/00761 , A61B2018/00886 , A61B2018/1213
摘要： An electrosurgical unit for conducting a predetermined ionizable gas in a jet stream to the tissue at a predetermined flow rate sufficient to clear natural fluids from the tissue and to substantially expose the tissue stroma and for exposing the gas to an electrical radio frequency energy to ionize the gas in conductive pathways in the gas jet stream. The unit includes a nozzle which is releasably connected to a handle for easy manipulation by a surgeon with the nozzle including means for supporting an electrode in an optimal position for initiation of the ionization of the gas. Also, a connecting system is disclosed for connecting the hose on which the handle is mounted to a gas delivery apparatus and supply or electrical energy which permits the hose to rotate while maintaining a positive hermetic seal to prevent the hose from kinking during use by a surgeon.
摘要翻译： 一种电外科单元，用于以预定的流速将喷射流中的预定可电离气体以预定的流速传导到组织中，该流速足以从组织中清除天然流体并基本上暴露组织基质，并将气体暴露于电射频能量以电离 气体在气体射流中的导电通路中。 该单元包括可释放地连接到手柄的喷嘴，以便外科医生易于操作，喷嘴包括用于将电极支撑在用于引发气体电离的最佳位置的装置。 此外，公开了一种用于将其上安装有手柄的软管连接到气体输送装置的连接系统以及允许软管旋转同时保持正气密密封以防止软管在外科医生使用期间扭结的供应或电能 。
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