-
公开(公告)号：US20090039900A1
公开(公告)日：2009-02-12
申请号：US12253647
申请日：2008-10-17
IPC分类号： G01R27/26
CPC分类号： G01N27/221
摘要： The present disclosure describes an instrument for measuring the dielectric properties of biological tissue. The instrument includes a top electrode assembly and a bottom electrode assembly, the top electrode assembly including a top electrode and at least one shaft adjustably positionable to move the top electrode relative to the bottom electrode assembly, the bottom electrode assembly including a bottom test plate and a bottom electrode. The instrument also includes a testing cylinder coupled to the shaft and having an inner cavity defined therein that houses the top electrode and which is designed to enclose the bottom electrode therein. The testing cylinder is configured to reduce at least one of electric current, magnetic current, stray radiative RF fields and external capacitive leakage currents during activation of the top and bottom electrodes.
摘要翻译： 本公开描述了用于测量生物组织的介电性质的仪器。 所述仪器包括顶部电极组件和底部电极组件，所述顶部电极组件包括顶部电极和至少一个轴，所述至少一个轴可调整地定位成相对于所述底部电极组件移动所述顶部电极，所述底部电极组件包括底部测试板和 底部电极。 该仪器还包括耦合到该轴并具有限定在其中的内腔的测试圆筒，其容纳顶部电极并被设计成将底部电极包围在其中。 测试气缸被配置为在顶部和底部电极的激活期间减少电流，磁流，杂散辐射RF场和外部电容性泄漏电流中的至少一个。
-
公开(公告)号：US20080030206A1
公开(公告)日：2008-02-07
申请号：US11487295
申请日：2006-07-14
IPC分类号： G01R27/26
CPC分类号： G01N27/221
摘要： The present disclosure describes an instrument for measuring the dielectric properties of biological tissue. The instrument includes a top electrode assembly and a bottom electrode assembly, the top electrode assembly including a top electrode and at least one shaft adjustably positionable to move the top electrode relative to the bottom electrode assembly, the bottom electrode assembly including a bottom test plate and a bottom electrode. The instrument also includes a testing cylinder coupled to the shaft and having an inner cavity defined therein that houses the top electrode and which is designed to enclose the bottom electrode therein. The testing cylinder is configured to reduce at least one of electric current, magnetic current, stray radiative RF fields and external capacitive leakage currents during activation of the top and bottom electrodes.
-
公开(公告)号：US07804308B2
公开(公告)日：2010-09-28
申请号：US12253647
申请日：2008-10-17
CPC分类号： G01N27/221
摘要： The present disclosure describes an instrument for measuring the dielectric properties of biological tissue. The instrument includes a top electrode assembly and a bottom electrode assembly, the top electrode assembly including a top electrode and at least one shaft adjustably positionable to move the top electrode relative to the bottom electrode assembly, the bottom electrode assembly including a bottom test plate and a bottom electrode. The instrument also includes a testing cylinder coupled to the shaft and having an inner cavity defined therein that houses the top electrode and which is designed to enclose the bottom electrode therein. The testing cylinder is configured to reduce at least one of electric current, magnetic current, stray radiative RF fields and external capacitive leakage currents during activation of the top and bottom electrodes.
摘要翻译： 本公开描述了用于测量生物组织的介电性质的仪器。 所述仪器包括顶部电极组件和底部电极组件，所述顶部电极组件包括顶部电极和至少一个轴，所述至少一个轴可调整地定位成相对于所述底部电极组件移动所述顶部电极，所述底部电极组件包括底部测试板和 底部电极。 该仪器还包括耦合到该轴并具有限定在其中的内腔的测试圆筒，其容纳顶部电极并被设计成将底部电极包围在其中。 测试气缸被配置为在顶部和底部电极的激活期间减少电流，磁流，杂散辐射RF场和外部电容性泄漏电流中的至少一个。
-
公开(公告)号：US07443175B2
公开(公告)日：2008-10-28
申请号：US11487295
申请日：2006-07-14
CPC分类号： G01N27/221
摘要： The present disclosure describes an instrument for measuring the dielectric properties of biological tissue. The instrument includes a top electrode assembly and a bottom electrode assembly, the top electrode assembly including a top electrode and at least one shaft adjustably positionable to move the top electrode relative to the bottom electrode assembly, the bottom electrode assembly including a bottom test plate and a bottom electrode. The instrument also includes a testing cylinder coupled to the shaft and having an inner cavity defined therein that houses the top electrode and which is designed to enclose the bottom electrode therein. The testing cylinder is configured to reduce at least one of electric current, magnetic current, stray radiative RF fields and external capacitive leakage currents during activation of the top and bottom electrodes.
摘要翻译： 本公开描述了用于测量生物组织的介电性质的仪器。 所述仪器包括顶部电极组件和底部电极组件，所述顶部电极组件包括顶部电极和至少一个轴，所述至少一个轴可调整地定位成相对于所述底部电极组件移动所述顶部电极，所述底部电极组件包括底部测试板和 底部电极。 该仪器还包括耦合到该轴并具有限定在其中的内腔的测试圆筒，其容纳顶部电极并被设计成将底部电极包围在其中。 测试气缸被配置为在顶部和底部电极的激活期间减少电流，磁流，杂散辐射RF场和外部电容性泄漏电流中的至少一个。
-
公开(公告)号：US08608733B2
公开(公告)日：2013-12-17
申请号：US13587400
申请日：2012-08-16
申请人： James H. Orszulak
发明人： James H. Orszulak
IPC分类号： A61B18/04
CPC分类号： A61B18/1206 , A61B2018/00875
摘要： An electrosurgical generator is disclosed, which includes a closed loop control system having a sensor system configured to sense tissue and/or energy properties at a tissue site and to generate a sensor signal representative of the tissue and/or energy properties. The control system includes a controller configured to select an electrosurgical operational mode from a plurality of electrosurgical operational modes in response to the sensor signal. A radio frequency arbitrary source is also included which generates a radio frequency input signal corresponding to the selected electrosurgical operational mode and a radio frequency output stage configured to generate a treatment signal corresponding to the electrosurgical operational mode. The system includes a predictive signal processor configured to adjust the radio frequency output stage in response to the radio frequency input signal, such that the radio frequency output stage alters the treatment signal in real time based on the selected electrosurgical operational mode.
摘要翻译： 公开了一种电外科发生器，其包括闭环控制系统，其具有被配置为感测组织部位处的组织和/或能量特性并且产生代表组织和/或能量特性的传感器信号的传感器系统。 控制系统包括控制器，其被配置为响应于传感器信号从多个电外科操作模式中选择电外科手术操作模式。 还包括射频任意源，其产生对应于所选择的电外科手术操作模式的射频输入信号，以及射频输出级，被配置为产生对应于电外科操作模式的治疗信号。 该系统包括：预测信号处理器，被配置为响应于射频输入信号调整射频输出级，使得射频输出级基于所选择的电外科操作模式实时地改变治疗信号。
-
6.发明申请公开(公告)号：US20120310241A1
公开(公告)日：2012-12-06
申请号：US13118973
申请日：2011-05-31
申请人： James H. Orszulak
发明人： James H. Orszulak
IPC分类号： A61B18/14
CPC分类号： A61B18/12 , A61B18/1206 , A61B18/1445 , A61B2017/00057 , A61B2018/00178 , A61B2018/0063 , A61B2018/00642 , A61B2018/00875 , H01B7/048
摘要： An electrosurgical system and method for transmitting, monitoring, and controlling electrosurgical energy and tissue parameter quality at the tissue site. The electrosurgical system includes a generator adapted to generate electrosurgical energy for treating tissue. The generator includes one or more active output terminals which supply energy to the tissue. The active output terminals are operatively connected to one or more active leads. The generator also includes one or more return output terminal which returns energy from the tissue. The return output terminals are operatively connected to at least one return lead. The system also includes an electrosurgical instrument operatively connected to the one or more active leads and one or more return electrodes operatively connected to one or more return leads. The system further includes an electrosurgical cable including one or more active leads and one or more return leads. The one or more active leads and one or more return leads are wound in a double helix fashion such that the electrical field along the cable is mitigated along the length thereof.
摘要翻译： 一种用于在组织部位传输，监测和控制电外科能量和组织参数质量的电外科系统和方法。 电外科系统包括适于产生用于治疗组织的电外科能量的发生器。 发生器包括向组织供应能量的一个或多个有源输出端子。 有源输出端子可操作地连接到一个或多个有源引线。 发电机还包括从组织返回能量的一个或多个返回输出端子。 返回输出端子可操作地连接到至少一个返回引线。 该系统还包括可操作地连接到一个或多个有源引线和可操作地连接到一个或多个返回引线的一个或多个返回电极的电外科器械。 该系统还包括电外科电缆，其包括一个或多个有源引线和一个或多个返回引线。 一个或多个有源引线和一个或多个返回引线以双螺旋方式缠绕，使得沿着电缆的电场沿其长度减轻。
-
公开(公告)号：US20120226274A1
公开(公告)日：2012-09-06
申请号：US13471040
申请日：2012-05-14
IPC分类号： A61B18/16
CPC分类号： A61B18/1206 , A61B18/1233 , A61B2018/00011 , A61B2018/00577 , A61B2018/124 , A61B2018/143
摘要： A method for performing an electrosurgical procedure at a surgical site on a patient, the method including the steps of providing a current restricting circuit operatively coupled between a source of electro surgical energy and an electrode, the current restricting circuit including: a switch configured to direct the flow of electrosurgical energy; and a plurality of current restrictive devices arranged in an H-Bridge arrangement, wherein the switch is disposed between adjacent current restrictive devices of the plurality of current restrictive devices; restricting the flow of electrosurgical energy wherein the current restricting circuit is configured to restrict a flow of electrosurgical energy when the switch is in a first position; enabling the flow of electrosurgical energy when the switch is in a second position; and dynamically controlling the electrosurgical energy delivered to the electrode with the current restricting circuit.
摘要翻译： 一种用于在患者的外科手术部位执行电外科手术的方法，所述方法包括以下步骤：提供可操作地耦合在电外科手术能量源和电极之间的电流限制电路，所述电流限制电路包括：开关，其被配置为引导 电外科手术能量流; 以及以H桥布置布置的多个电流限制装置，其中所述开关设置在所述多个电流限制装置的相邻的限流装置之间; 限制电外科能量的流动，其中电流限制电路被配置为当开关处于第一位置时限制电外科手术能量的流动; 当开关处于第二位置时能够使电外科手术能量流动; 并且利用电流限制电路动态地控制传递到电极的电外科能量。
-
公开(公告)号：US08182477B2
公开(公告)日：2012-05-22
申请号：US11904081
申请日：2007-09-26
IPC分类号： A61B18/14
CPC分类号： A61B18/1206 , A61B18/1233 , A61B2018/00011 , A61B2018/00577 , A61B2018/124 , A61B2018/143
摘要： A system for heat ablation of tissue in a patient comprises a plurality of electrodes operatively connected to a source of radiofrequency energy and configured to apply RF energy to tissue at a patient site, a plurality of RF current restricting circuits, each circuit coupled between one of the plurality of electrodes and the source of radiofrequency energy, and configured to restrict RF energy to the electrode when the current restricting circuit is enabled and not restrict RF energy to flow to the electrode when the current restricting circuit is disabled, at least one return electrode adapted to contact the patient and configured to return RF energy to the RF source; and a switching mechanism configured to selectively enable each of the plurality of RF current restricting circuits, in one of a sequential and non sequential fashion, wherein the switching mechanism is isolated from each of the current restricting circuits.
摘要翻译： 用于患者组织的热消融的系统包括可操作地连接到射频能量源的多个电极，并且被配置为将RF能量施加到患者部位的组织，多个RF电流限制电路，每个电路耦合在 所述多个电极和所述射频能量源，并且被配置为当所述电流限制电路被使能时将RF能量限制到所述电极，并且当所述电流限制电路被禁用时不限制RF能量流向所述电极;至少一个返回电极 适于接触患者并被配置为将RF能量返回到RF源; 以及开关机构，其被配置为以顺序和非顺序方式中的一个选择性地使能所述多个RF电流限制电路中的每一个，其中所述开关机构与每个所述电流限制电路隔离。
-
公开(公告)号：US20090259224A1
公开(公告)日：2009-10-15
申请号：US12057557
申请日：2008-03-28
IPC分类号： A61B18/18
CPC分类号： A61B18/1445 , A61B17/12 , A61B18/00 , A61B18/1206 , A61B18/1442 , A61B18/1482 , A61B18/18 , A61B2017/2945 , A61B2018/00404 , A61B2018/00428 , A61B2018/00589 , A61B2018/00601 , A61B2018/0063 , A61B2018/00684 , A61B2018/00702 , A61B2018/00726 , A61B2018/00791 , A61B2018/00827 , A61B2018/00875 , A61B2018/126 , A61B2018/1432 , A61B2018/1467
摘要： A method for electrosurgically sealing a tissue includes steps of: (A) applying a first pulse of RF energy to the tissue; and (B) applying at least one subsequent RF energy pulse to the tissue and keeping constant or varying RF energy parameters of individual pulses of subsequent RF energy pulses in accordance with at least one characteristic of an electrical transient that occurs during the individual RF energy pulses. The method terminates the generation of the at least one subsequent RF pulse upon a determination that the electrical transient is absent.
摘要翻译： 用于电外科密封组织的方法包括以下步骤：（A）向组织施加RF能量的第一脉冲; 和（B）根据至少一个在各个RF能量脉冲期间发生的电瞬态的特征，向组织施加至少一个后续RF能量脉冲并保持随后RF能量脉冲的各个脉冲的恒定或变化的RF能量参数 。 该方法终止在确定电瞬变不存在时产生至少一个后续RF脉冲。
-
10.发明申请Dual Synchro-Resonant Electrosurgical Apparatus With Bi-Directional Magnetic Coupling 有权具有双向磁耦合的双同步共振电外科设备公开(公告)号：US20090237169A1
公开(公告)日：2009-09-24
申请号：US12477320
申请日：2009-06-03
申请人： James H. Orszulak
发明人： James H. Orszulak
IPC分类号： H03B5/12
CPC分类号： A61B18/12 , A61B18/1206 , A61B2018/0066 , A61B2018/124
摘要： An electrosurgical generator is disclosed. The electrosurgical generator includes a power supply for generating a DC voltage. The electrosurgical generator also includes a first parallel inductor-capacitor circuit being driven by a first signal at a first predetermined frequency and a second parallel inductor-capacitor circuit driven by a second signal at the first predetermined frequency phase shifted 180 degrees. The electrosurgical generator further includes a series inductor-capacitor resonant circuit operably connected in series with a primary winding of a transformer. The first and second parallel inductor-capacitor circuits are operably connected to the transformer, such that the first inductor-capacitor circuit generates a positive half sine wave and the second inductor-capacitor circuit generates a 180 degrees phase-shifted positive half sine wave to generate a full sine wave in a secondary winding of the transformer.
摘要翻译： 公开了一种电外科发生器。 电外科发生器包括用于产生直流电压的电源。 电外科发生器还包括由第一预定频率的第一信号驱动的第一并联电感器 - 电容器电路和由第一预定频率相位移动180度的第二信号驱动的第二并联电感器 - 电容器电路。 电外科发生器还包括与变压器的初级绕组串联可操作地串联的串联电感器 - 电容器谐振电路。 第一和第二并联电感器 - 电容器电路可操作地连接到变压器，使得第一电感器 - 电容器电路产生正半正弦波，并且第二电感 - 电容电路产生180度相移正半正弦波以产生 在变压器的次级绕组中的全正弦波。
-
-
-
-
-
-
-
-
-
搜索结果
60 条记录 (耗时 0.028 秒)
