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68 条记录 (耗时 0.075 秒)

    Method and apparatus for endometrial ablation
    61.
    发明授权
    Method and apparatus for endometrial ablation 失效
    子宫内膜消融的方法和装置

    公开(公告)号：US5443470A

    公开(公告)日：1995-08-22

    申请号：US46683

    申请日：1993-04-14

    申请人： Roger A. Stern ,  Vincent N. Sullivan ,  Robert L. Marion

    发明人： Roger A. Stern ,  Vincent N. Sullivan ,  Robert L. Marion

    IPC分类号： A61B18/12 ,  A61B17/00 ,  A61B17/42 ,  A61B18/14 ,  A61N1/06 ,  A61N1/40 ,  A61N5/00

    CPC分类号： A61B18/14 ,  A61B18/1442 ,  A61B18/1485 ,  A61N1/06 ,  A61N1/40 ,  A61N1/403 ,  A61B2017/00092 ,  A61B2017/00101 ,  A61B2017/00292 ,  A61B2017/4216 ,  A61B2018/00065 ,  A61B2018/00083 ,  A61B2018/00113 ,  A61B2018/0016 ,  A61B2018/0022 ,  A61B2018/00559 ,  A61B2018/00577 ,  A61B2018/00654 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/00815 ,  A61B2018/124 ,  A61B2018/1253 ,  A61B2018/1465 ,  A61B2018/1467 ,  A61B2018/162

    摘要： An endometrial ablation apparatus and method wherein an RF current having a frequency of between 250 kHz and 100 MHz is passed through the entire surface of an endometrium in order to provide heating of the endometrium. An electroconductive expandable member such as a balloon is used as the medium for passing the current and causing the heating of the endometrium. The temperature of the endometrium is raised to a temperature between 45.degree. C. and 90.degree. C. and preferably not above 70.degree. for a time sufficient to destroy the cells of the lining while maintaining the average temperature of the myometrium at a temperature below approximately 42.degree. C. The expandable balloon is connected to a power source which provides the radio frequency power having the desired characteristics to selectively heat the endometrial lining to the desired temperature. The balloon can be constructed with an electroconductive elastomer such as a mixture of polymeric elastomer and electroconductive particles or can be a non-extensible bladder having a shape and a size, in its fully expanded form, which will extend the organ and effect contact with the endometrial lining to be destroyed. The electroconductive member may consist of a plurality of electrode area segments having a thermistor associated with each electrode segment whereby the temperature from each of said plurality of segments is monitored and controlled by a feedback arrangement from the thermistors.

    摘要翻译： 子宫内膜消融装置和方法，其中频率在250kHz和100MHz之间的RF电流通过子宫内膜的整个表面，以提供子宫内膜的加热。 使用诸如球囊的导电性可扩张构件作为使电流通过并引起子宫内膜加热的介质。 将子宫内膜的温度升高到45℃至90℃之间，优选不高于70度，足以破坏衬里的细胞，同时保持子宫肌层的平均温度低于约 可膨胀气囊连接到电源，其提供具有期望特性的射频功率以选择性地将子宫内膜衬里加热到所需温度。 气球可以用诸如聚合物弹性体和导电颗粒的混合物的导电弹性体构成，或者可以是具有其完全展开形式的形状和尺寸的不可伸长的囊，其将延伸器官并且与 子宫内膜被破坏。 导电构件可以由具有与每个电极段相关联的热敏电阻的多个电极区段组成，从而来自所述多个区段中的每一个的温度由来自热敏电阻的反馈装置进行监测和控制。

    Ultrasonic marker for physiologic diagnosis and method of using same
    63.
    发明授权
    Ultrasonic marker for physiologic diagnosis and method of using same 失效
    用于生理诊断的超声波标记及其使用方法

    公开(公告)号：US4373532A

    公开(公告)日：1983-02-15

    申请号：US166556

    申请日：1980-07-07

    申请人： Bruce C. Hill ,  Roger A. Stern

    发明人： Bruce C. Hill ,  Roger A. Stern

    IPC分类号： A61B5/07 ,  A61B5/107 ,  A61B8/06 ,  A61B19/00 ,  A61B10/00

    CPC分类号： A61B8/06 ,  A61B5/076 ,  A61B5/107 ,  A61B8/12 ,  A61B90/39 ,  A61B2090/3925

    摘要： For non-invasive diagnosis of conditions subsequent to a medical operative procedure, at the time of operation a "target" is sutured to tissue. Later, by use of an ultrasonic imaging system or other diagnostic instrument, the location of the target can be accurately determined. Thereupon, non-invasive techniques may be used in the target area to determine changes in physiology subsequent to implanting the target. For example, a target consisting of a fused array of small stainless steel balls is sutured to a coronary artery bypass graft. Later, to determine if the bypass graft is patent, by ultrasonic methods the location of the target and hence the bypass graft is determined. Then, using a Doppler-effect flowmeter, flow through the bypass graft may be measured and compared with prior measurements. The marking technique is also believed to be useful in postoperative determination of tumor growth at the locus of said marker.

    摘要翻译： 对于在医疗操作程序之后的条件的非侵入性诊断，在手术时将“靶”缝合到组织。 之后，通过使用超声波成像系统或其他诊断仪器，可以准确地确定目标的位置。 因此，可以在目标区域中使用非侵入性技术来确定在植入靶之后的生理学变化。 例如，将由小型不锈钢球的融合阵列组成的靶缝合到冠状动脉旁路移植物。 然后，为了确定旁路移植物是否是专利，通过超声方法确定靶的位置，从而确定旁路移植物的位置。 然后，使用多普勒效应流量计，可以测量流过旁路移植物并与之前的测量进行比较。 也认为标记技术可用于术后确定所述标记的位点处的肿瘤生长。

    Control system and process for application of energy to airway walls and other mediums
    65.
    发明授权
    Control system and process for application of energy to airway walls and other mediums 有权

    公开(公告)号：US07837679B2

    公开(公告)日：2010-11-23

    申请号：US11458084

    申请日：2006-07-17

    申请人： Michael Biggs ,  Roger A. Stern ,  Christopher J. Danek

    发明人： Michael Biggs ,  Roger A. Stern ,  Christopher J. Danek

    IPC分类号： A61B18/10

    CPC分类号： A61N1/06 ,  A61B18/14 ,  A61B2018/00541 ,  A61N1/40

    摘要： The present invention includes a system for delivering energy to an airway wall of a lung comprising an energy delivering apparatus and a PID controller having one or more variable gain factors which are rest after energy deliver has begun. The energy delivering apparatus may include a flexible elongated member and a distal expandable basket having at least one electrode for transferring energy to the airway wall and at least one temperature sensor for measuring temperature. The PID controller determines a new power set point base on an error between a preset temperature and the measured temperature. The algorithm can be Pi+1=Pi+G(αei+βei−1+γei−2) where α, β and γ are preset values and α is from 1 to 2; β is from −1 to −2; and γ is from −0.5 to 0-5. In another variation, the controller is configured to shut down if various measured parameters are exceeded such as, for example, energy, impedance, temperature, temperature differences, activation time and combinations thereof. Methods for treating a target medium using a PID algorithm are also provided.

    Fluid and electrolyte balance monitoring system for surgical and critically ill patients
    68.
    发明授权
    Fluid and electrolyte balance monitoring system for surgical and critically ill patients 失效
    流体和电解质平衡监测系统为外科和危重病人

    公开(公告)号：US6010454A

    公开(公告)日：2000-01-04

    申请号：US965549

    申请日：1997-11-06

    申请人： Allen I. Arieff ,  Roger A. Stern

    发明人： Allen I. Arieff ,  Roger A. Stern

    IPC分类号： G01N33/487 ,  A61B5/05 ,  A61B5/20 ,  A61B10/00 ,  A61M1/00 ,  A61M5/168 ,  A61M5/172 ,  G01N21/62 ,  G01N21/69 ,  A61B5/00

    CPC分类号： G01N21/69 ,  A61M1/0025 ,  A61M1/006 ,  A61M5/16886 ,  A61M5/1723 ,  G01N21/62 ,  A61B10/0045 ,  A61B5/20 ,  A61M2205/3375 ,  A61M2205/3393 ,  A61M2230/65 ,  A61M5/16895

    摘要： A computer based system for tracking a patient's fluid volume and electrolyte (cation or anion concentration) balances, during the period extending from before surgical procedures through the recovery process, which will assist the attending physician in maintaining proper balances in the patient. The system contains automatic sensors for measuring the volumes of fluids administered to and recovered from the patient. The system also preferably contains sensors for measuring electrolyte concentrations in these fluids, and, when sensors are not available, assists the attending physician in estimating. The system assists the attending physician in creating baseline values for a patient's fluid and electrolyte values, and then accounts for the fluids going into and out of the patient to continuously track current values. Out of bounds conditions for these balances, when detected, will cause the system to issue alarms and make suggestions to the attending physician for remedial action.

    摘要翻译： 一种基于计算机的系统，用于跟踪患者的体液量和电解质（阳离子或阴离子浓度）平衡，在从外科手术到恢复过程之前的期间内，这将有助于主治医师维持患者的适当平衡。 该系统包含用于测量给予患者和从患者回收的流体体积的自动传感器。 该系统还优选地包含用于测量这些流体中的电解质浓度的传感器，并且当传感器不可用时，辅助主治医师进行估计。 该系统帮助主治医师为患者的流体和电解质值创建基线值，然后考虑流入和流出患者的流体以连续跟踪电流值。 超出这些余额的条件，当被检测到时，将导致系统发出警报，并向主治医师提出补救措施的建议。