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    • 51. 发明申请
    • LAPAROSCOPIC GRASPING TOOL
    • LAPAROSCOPIC GRASPING工具
    • WO1996013217A1
    • 1996-05-09
    • PCT/US1994012477
    • 1994-10-31
    • HUTCHINSON, William, B., Jr.
    • HUTCHINSON, William, B., Jr.
    • A61B17/39
    • A61B18/1482A61B2017/2927
    • A laparoscopic surgical cutting tool (10) has a lip (36) with a rounded forward edge (38). A pair of electrifiable cutting elements (40, 42) extend from the lip. A laparoscopic surgical grasping tool (50) has jaws (74, 78) for holding an internal organ. A needle (64) advanced through the tool pierces the organ held by the jaws to draw off internal fluid or inject a diagnostic dye. A length calibrated penetration needle (100) and access tubes (106, 108, 110) facilitate installation of surgical instruments. An abdominal trocal (130) has an inflatable balloon (140) to hold the trocar in position.
    • 腹腔镜手术切割工具(10)具有带有圆形前缘(38)的唇缘(36)。 一对可充电切割元件(40,42)从唇缘延伸。 腹腔镜手术夹持工具(50)具有夹持内部器官的夹爪(74,78)。 通过工具前进的针(64)刺穿由钳口保持的器官以抽出内部流体或注入​​诊断染料。 长度校准的穿刺针(100)和进入管(106,108,110)便于安装手术器械。 腹部(130)具有可充气的气囊(140),以将套针保持在适当的位置。
    • 52. 发明申请
    • MAPPING R- F ABLATING LIQUID INJECTING SCREW- IN CATHETER MOUNTED ELECTRODE
    • 喷射式R-F喷射式液体注射螺旋管导管电极
    • WO1996007360A1
    • 1996-03-14
    • PCT/US1995009478
    • 1995-07-28
    • MEDTRONIC, INC.
    • MEDTRONIC, INC.MULIER, Peter, M.J.HOEY, Michael, F.
    • A61B17/39
    • A61B18/1492A61B18/1402A61B18/1477A61B2017/00292A61B2018/00011A61B2018/00023A61B2018/00029A61B2018/00035A61B2018/00041A61B2018/00065A61B2018/00077A61B2018/1253A61B2018/126A61B2018/1425A61B2018/1435A61B2018/1472A61B2018/162A61B2218/002
    • A method and apparatus for ablation of body tissue. A catheter provided with a hollow needle is employed both for mapping the location to be ablated by injection of an excitability reducing agent and for ablating tissue, employing RF energy in conjunction with an injected, conductive fluid. The hollow needle can be shaped in the form of a spring like helix intended to pierce the surface of the organ and then to penetrate into the tissue under the action of a rotation imposed upon the catheter by the operator. The penetration of the electrode into the tissue guarantees efficiency of ablation and prevents dispersion of energy on not targeted locations. A second ablation electrode may be present in a recessed cavity at the catheter distal end. The injection of cool or warm liquids through the helix like needle requires the liquid to be kept at the wished-for temperature along the length of the catheter. To this objective the catheter main lumen is made into three coaxial channels, the innermost of which carries the injection liquid, and the two others create a two way circuit where another heated or cooled liquid is forced to circulate to maintain the temperature of the injection liquid in the innermost tube at the distored level.
    • 一种消除身体组织的方法和装置。 使用具有空心针的导管,用于通过注射兴奋性降低剂和用于消融组织来绘制要消融的位置,使用RF能量与注入的导电流体结合。 中空针可以形成为类似螺旋的形式,用于刺穿器官的表面,然后在操作者施加在导管上的旋转的作用下穿透组织。 电极穿透到组织中保证消融的效率,并防止能量分散在目标位置上。 第二消融电极可以存在于导管远端处的凹腔中。 通过螺旋状针注射冷或暖液体需要将液体保持在沿着导管长度的期望温度。 为此目的,导管主管腔被制成三个同轴通道,其最内部带有注射液体,而另外两个通道产生双向电路,其中另一个加热或冷却的液体被迫循环以保持注射液体的温度 在最内层的管子处于不合格的水平。
    • 54. 发明申请
    • TELESCOPING BIPOLAR ELECTRODE FOR NON-INVASIVE MEDICAL PROCEDURES
    • 用于非入门医疗程序的牵引双极电极
    • WO1995020360A1
    • 1995-08-03
    • PCT/IB1994000424
    • 1994-12-14
    • VALLEYLAB, INC.
    • VALLEYLAB, INC.SILVESTRINI, Thomas, A.
    • A61B17/39
    • A61B18/1492A61B18/1402A61B18/1482A61B18/1485A61B2018/00196
    • Disclosed herein is a telescoping bipolar electrode (1) having an inner electrode (4) with an outer diameter (D4), length and outer side surface, such that up to the entire side surface is covered with an insulation sheath (5), which alternatively is fixed to the inner electrode (4) or is lengthwise adjustable with respect thereto, the inner electrode (4) and insulation sheath (5) together being slidably mounted within the inner space of an outer electrode (2) having an inner diameter greater than that of the inner electrode and its insulation sheath, an outer diameter (D2), thickness, length and an outer side surface area, the outer electrode (2) also having an insulation sheath (3) around its outer diameter (D2), covering up to the entire side surface area of the outer electrode (2), with the insulation sheath (3) around the outer electrode (2) being alternatively fixed to the outer electrode (2) or lengthwise adjustable with respect thereto. The bipolar electrode (1) is capable of being inserted into the human body through a body cavity or through the lumen of a vessel. At least one of the outer and inner electrodes is supplied with radio frequency energy from an external source (10). The bipolar electrode (1) is utilized to cut, desiccate or ablate neoplasms (12) in the body. In an alternative embodiment, the bipolar electrode (1) is configured such that the two component electrodes (2, 4) are arranged externally parallel to one another and are telescopically slidable relative to one another.
    • 本文公开了一种伸缩式双极电极(1),其具有内部电极(4),其具有外径(D4),长度和外侧表面,使得整个侧表面被绝缘护套(5)覆盖, 内部电极(4)和绝缘护套(5)一起可滑动地安装在外部电极(2)的内部空间内,内部电极(2)的内径较大 内部电极及其绝缘护套的外径(D2),厚度,长度和外侧表面区域,外部电极(2)也具有围绕其外径(D2)的绝缘护套(3) 覆盖外部电极(2)的整个侧表面区域,其中围绕外部电极(2)的绝缘护套(3)交替地固定到外部电极(2)或者相对于外部电极(2)纵向可调节。 双极电极(1)能够通过体腔或通过血管的内腔插入人体内。 从外部源(10)向外部和内部电极中的至少一个提供射频能量。 双极电极(1)用于切割,干燥或消融体内的赘生物(12)。 在替代实施例中,双极电极(1)被配置为使得两个部件电极(2,4)彼此外侧平行布置并且可相对于彼此可伸缩地滑动。
    • 57. 发明申请
    • AUTOMATIC CONTROL FOR ELECTROSURGICAL GENERATOR ENERGY
    • 静电发生器能量自动控制
    • WO1995009577A1
    • 1995-04-13
    • PCT/IB1994000273
    • 1994-09-09
    • VALLEYLAB, INC.
    • VALLEYLAB, INC.KLICEK, Michael, S.
    • A61B17/39
    • A61B18/1206A61B2018/00702A61B2018/00755A61B2018/00761A61B2018/00779A61B2018/00827A61B2018/00875A61B2018/00892
    • An electrosurgical generator (11) control responds to tissue impedance between active and return electrodes (12 and 13) during desiccation. Active and return generator leads supply energy (25) and a user control (16) sets the level of energy (25) desired for electrosurgery. Voltage and current sensing circuits (19) respond to high frequency energy (25) in the leads to signal voltage and current in the leads. A multiplier (21) receives the signals to calculate power. A clock (23) sets units of time during which power calculation. An integrator (24) calculates the energy (25) supplied through the leads per time unit. The user control (16) sets a reference signal (26) for the energy (25) level desired. A correlation circuit (27) receives the energy (30) calculations from the integrator (24) and the reference signal (26) and provides a feedback signal (28) to indicate when the energy (25) calculation equals the user control (16) setting for altering the generator supply of energy (25) to the leads. A counter (38) assesses the number of packets of energy (40) delivered against a setting of the user control (16) and the total energy (25) delivered is a function of multiple packet sequences containing pulses wherein the time between the pulses is controlled by the user control (16). The method uses the automatic control (10) in measuring impedance during tissue desiccation and altering the output of an electrosurgical generator (11).
    • 电外科发生器(11)控制在干燥期间响应于主动和返回电极(12和13)之间的组织阻抗。 主动和返回发电机引导供电能量(25),用户控制(16)设置电外科所需的能量水平(25)。 电压和电流检测电路(19)对引线中的高频能量(25)作出响应,以引发引线中的电压和电流。 乘法器(21)接收信号以计算功率。 时钟(23)设定功率计算的时间单位。 积分器(24)计算每个时间单位通过引线提供的能量(25)。 用户控制(16)为所需的能量(25)设定参考信号(26)。 相关电路(27)从积分器(24)和参考信号(26)接收能量(30)的计算,并提供反馈信号(28)以指示能量(25)的计算何时等于用户控制(16) 用于将发电机能量供应(25)改变为引线的设置。 计数器(38)根据用户控制(16)的设置来评估递送的能量分组的数量(40),并且传送的总能量(25)是包含脉冲的多个分组序列的函数,其中脉冲之间的时间是 由用户控制(16)控制。 该方法使用自动控制(10)在组织干燥期间测量阻抗并改变电外科发生器(11)的输出。
    • 58. 发明申请
    • APPARATUS FOR ESU LEAKAGE CURRENT CONTROL AND RELEVANT METHOD
    • 用于ESU泄漏电流控制和相关方法的装置
    • WO1995003743A1
    • 1995-02-09
    • PCT/IB1994000081
    • 1994-04-26
    • VALLEYLAB, INC.
    • VALLEYLAB, INC.KLICEK, Michael, S.PATERSON, William, G.
    • A61B17/39
    • A61B18/1206A61B18/12A61B18/1233A61B2018/00083A61B2018/0075
    • An apparatus (10) and method to find leakage due to tissue load or transients at the start or end of electrosurgery. Active and return electrodes (11 and 16) between a patient and an ESU (13) pass RF energy sensed by inductive transformers (17 and 19). A circuit finds leakage at more than two thousand times per second; that frequency depends on the phase shift (23) between voltage and current. Software and feedback (26) manage RMS voltage to reduce the peak voltage of the output wave or increase the crest factor by pulse width modulation of the RF drive. Phase shift (23) changes of the active and return current signals (18 and 20) and peak voltage and current are found. The phase angle theta is compared to a threshold and if greater than the frequency at which the differences (22) between the active and return current signals (18 and 20) are examined is increased. The differences (22) between the active and return current signals (18 and 20) are examined and if greater than a maximum for leakage while the mode selected is in coagulation then the pulse width of the RF drive is reduced to hold voltage wave-form peaks at a predetermined value while the RMS voltage is reduced to lower the leakage to a maximum or the frequency at which the leakage current is calculated is held to a maximum level until the phase angle theta is smaller than the threshold. If the difference (22) is greater than a maximum for leakage while the mode is cut or bipolar then the Vrms is reduced to a maximum level or the level remains high until the phase angle theta is smaller than a threshold. The crest factor is increased by reducing the duty cycle or the pulse width of the output wave shape.
    • 一种在电外科手术开始或结束时发现由于组织负荷或瞬变引起的渗漏的装置(10)和方法。 患者和ESU(13)之间的有源和返回电极(11和16)传递由感应变压器(17和19)感测的RF能量。 电路每秒发现二千多次泄漏; 该频率取决于电压和电流之间的相移(23)。 软件和反馈(26)管理RMS电压以降低输出波的峰值电压或通过RF驱动器的脉宽调制增加波峰因数。 发现有源和回流电流信号(18和20)和峰值电压和电流的相移(23)变化。 将相位角θ与阈值进行比较,并且如果大于检查有效和返回电流信号(18和20)之间的差(22)的频率增加。 检查有源和回流电流信号(18和20)之间的差异(22),并且如果在选择的模式处于凝结状态时大于泄漏的最大值,则RF驱动器的脉冲宽度被减小以保持电压波形 峰值处于预定值,同时RMS电压降低以将泄漏降低到最大值或将泄漏电流计算出的频率保持在最大电平,直到相位角θ小于阈值。 如果在模式被切断或双极时差(22)大于泄漏的最大值,则Vrms被减小到最大电平,或者水平保持高,直到相位角θ小于阈值。 通过减小输出波形的占空比或脉冲宽度来增加波峰因数。
    • 60. 发明申请
    • TUNNELLING CATHETER
    • 隧道灯
    • WO9502370A2
    • 1995-01-26
    • PCT/GB9401536
    • 1994-07-15
    • SALIM AWS SHAKIR MUSTAFA
    • SALIM AWS SHAKIR MUSTAFA
    • A61B17/00A61B17/22A61B18/08A61B18/14A61B17/39
    • A61B17/320725A61B18/148A61B18/1492A61B2017/00292A61B2018/00214A61B2018/00267
    • The present invention relates to a diathermy tunnelling catheter device (1). The device (1) has a remotely radially expandable basket (4) with a diathermic cutting and coagulating tip (2) and a plurality of spaced apart diathermic cutting and coagulating bars (3) extending rearwardly from said tip (2). In use the basket (4) is initially advanced into a growth in a radially contracted condition by diathermic cutting with said basket tip (2), the basket (4) is then radially expanded whilst radially cutting diathermically with the cutting bars (3) into the growth, and the basket (4) is then rotated whilst annularly cutting diathermically with the cutting bars (3). Conveniently the device (1) is used via the biopsy channel of an endoscope.
    • 本发明涉及一种透热隧道导管装置(1)。 装置(1)具有远离径向可膨胀的篮(4),其具有透热切割和凝固尖端(2)和从所述尖端(2)向后延伸的多个间隔开的隔热切割和凝固棒(3)。 在使用中,篮子(4)最初通过具有所述篮筐(2)的透热切割而在径向收缩的状态下进入成长状态,然后将篮子(4)径向扩张,同时用切割棒(3)进行径向切割 随后,通过切割条(3)与篮状物(4)进行环形切割同时旋转。 方便地,通过内窥镜的活检通道使用装置(1)。