METHOD AND SYSTEM FOR OBTAINING DIMENSION RELATED INFORMATION FOR A FLOW CHANNEL
    2.
    发明申请
    METHOD AND SYSTEM FOR OBTAINING DIMENSION RELATED INFORMATION FOR A FLOW CHANNEL 有权
    用于获取流量信道尺寸相关信息的方法和系统

    公开(公告)号:US20090149765A1

    公开(公告)日:2009-06-11

    申请号:US12372565

    申请日:2009-02-17

    申请人: WARREN P. HEIM

    发明人: WARREN P. HEIM

    IPC分类号: A61B5/026

    摘要: A method and system for determination of dimension related information such as volumetric flow rate(s) of a fluid flowing through a channel. In one implementation, the method and system analyzes temporal changes in a moving fluid's velocity profile to calculate the fluid channel dimensions. In turn, the fluid channel dimensions and the fluid velocity profile data may be combined to calculate the volumetric flow rate of the fluid flowing through the channel. In this regard, the geometry of the channel can be characterized using dimensionless variables that relate dimensions, such as the radius across a circular cross-section, to the largest extent of a dimension. For example, in the case where the channel is a cylindrical tube and a pressure gradient is applied long enough for the fluid to have reached a steady state, the dimensionless radius will be the radius at any point divided by the overall radius of the tube. One or more dimensionless variables can be used to characterize geometries: for instance, one dimensionless radius characterizes a circular tube and two dimensionless terms characterize an elliptical tube (one for the major axis and one for the minor axis). The time required for velocity profiles to change from one shape to another may be characterized by dimensionless time. Dimensionless time, in turn, uses the fluid's viscosity and density along with time and overall channel dimensions and may be used in combination with at least one velocity profile to calculate the volumetric flow rate of the fluid flowing through the channel.

    摘要翻译: 用于确定尺寸相关信息的方法和系统,例如流过通道的流体的体积流量。 在一个实施方案中,该方法和系统分析移动流体的速度分布的时间变化以计算流体通道尺寸。 反过来,流体通道尺寸和流体速度分布数据可以被组合以计算流过通道的流体的体积流量。 在这方面,可以使用无量纲变量来表征通道的几何形状,其将尺寸(例如圆形横截面上的半径)与尺寸的最大程度相关联。 例如,在通道是圆柱形管并且施加足够长的压力梯度以使流体达到稳定状态的情况下,无量纲半径将是在任何点除以管的总半径的半径。 一个或多个无量纲变量可用于表征几何:例如,一个无量纲半径表征圆管,两个无量纲术语表征椭圆管(一个用于长轴,一个用于短轴)。 速度分布从一个形状变为另一个形状所需的时间可以是无量纲时间的特征。 无尺寸时间反过来又使用流体的粘度和密度以及时间和总体通道尺寸,并且可以与至少一个速度分布组合使用,以计算流过通道的流体的体积流量。

    Ambulatory infusion pump
    3.
    发明授权
    Ambulatory infusion pump 失效
    动态输液泵

    公开(公告)号:US5630710A

    公开(公告)日:1997-05-20

    申请号:US209519

    申请日:1994-03-09

    摘要: A remotely programmable infusion system for administering liquid to a patient includes an infusion pump unit having a pump for infusing liquids operated by means of a control including a programmed processing unit and a memory chip. The processing unit operates in accordance with delivery program data stored in the memory circuit for executing an infusion delivery sequence. An output circuit is operatively disposed between the processing unit and the pump unit to control operation of the pump unit in accordance with the infusion delivery sequence. A wireless data communication circuit is operatively connected to the control for transmitting and receiving data. A programmer remote from the pump unit includes a programmed processing unit, a memory circuit, a user interface operatively associated with the processing unit for entering program commands and configuring delivery program data for storage in the memory circuit and a modem circuit operatively connected to the processing unit for transmitting and receiving data to and from the infusion pump unit. A remote communication interface unit includes a pump interface operatively communicating, in use, with the pump wireless data communication circuit, a programmer interface, including a modem circuit operatively communicating, in use, via a telephone line with the programmer modem circuit and a control circuit operatively connected to the pump interface and the programmer interface for channeling data between the pump interface and the modem circuit.

    摘要翻译: 用于向患者施用液体的远程可编程输注系统包括输注泵单元,其具有用于通过包括编程的处理单元和存储器芯片的控制来操作的液体的泵。 处理单元根据存储在存储器电路中的用于执行输液递送顺序的递送程序数据进行操作。 输出电路可操作地设置在处理单元和泵单元之间,以根据输液递送顺序控制泵单元的操作。 无线数据通信电路可操作地连接到用于发送和接收数据的控制。 远离泵单元的编程器包括编程的处理单元,存储器电路,与处理单元可操作地相关联的用于输入程序命令和配置传送程序数据以存储在存储器电路中的用户界面以及可操作地连接到处理的调制解调器电路 用于从输液泵单元发送和接收数据的单元。 远程通信接口单元包括在使用中与泵无线数据通信电路可操作地通信的泵接口,包括在使用中通过电话线与编程器调制解调器电路可操作地通信的调制解调器电路的编程器接口和控制电路 可操作地连接到泵接口和编程器接口,用于在泵接口和调制解调器电路之间引导数据。

    Multielectrode electrosurgical instrument
    4.
    发明授权
    Multielectrode electrosurgical instrument 有权
    多电极电外科器械

    公开(公告)号:US08357154B2

    公开(公告)日:2013-01-22

    申请号:US11427643

    申请日:2006-06-29

    IPC分类号: A61B18/14

    摘要: An improved electrosurgical instrument includes a body having more than two electrodes with at least two electrodes having alternating current power supplied to them provide a bipolar alternating current configuration and employ a means other than electrode spacing for reducing or preventing accumulation of eschar. The electrodes are separated from each other using electrically insulating materials such that electric current does not flow between at least two of the bipolar alternating current electrodes unless they contact at least one other electrically conductive medium, such as patient tissue. The conductor edge portion and insulation layer each have geometric shapes and composition to reduce or eliminate the production of smoke and eschar and reduce tissue damage. The outer profile of the insulation layer and conductive element are configured to facilitate the flow of electrosurgical decomposition products away from the conductor edge where they are formed.

    摘要翻译: 一种改进的电外科器械包括具有多于两个电极的主体,具有至少两个具有供给其的交流电力的电极提供双极交流配置并且采用电极间隔以外的装置来减少或防止焦痂积聚。 电极使用电绝缘材料彼此分离,使得电流不在至少两个双极交流电极之间流动,除非它们接触至少一个其它导电介质,例如患者组织。 导体边缘部分和绝缘层各自具有几何形状和组成以减少或消除烟雾和焦痂的产生并减少组织损伤。 绝缘层和导电元件的外部轮廓被构造成便于电外科分解产物远离形成它们的导体边缘的流动。

    Electrosurgical instrument with needle electrode
    5.
    发明授权
    Electrosurgical instrument with needle electrode 有权
    带电针的电外科器械

    公开(公告)号:US07867225B2

    公开(公告)日:2011-01-11

    申请号:US11427691

    申请日:2006-06-29

    IPC分类号: A61B18/14

    摘要: An electrosurgical instrument includes a conductive element in the form of a needle that is surrounded by an insulation layer except at a conductor tip portion of the conductive element. The conductor tip portion and insulation layer each have unique geometric shapes and composition of the parts to reduce or eliminate the production of smoke and eschar and reduce tissue damage. The electrosurgical needle electrode is configured to concentrate the flow of electrosurgical at the tip region.

    摘要翻译: 电外科器械包括由导电元件的导体末端部分除外的绝缘层围绕的针形导电元件。 导体尖端部分和绝缘层各自具有独特的几何形状和部件的组成,以减少或消除烟雾和焦灼的产生并减少组织损伤。 电外科针电极构造成将电外科的流动集中在尖端区域。

    Diagnostic signal processing method and system
    6.
    发明授权
    Diagnostic signal processing method and system 有权
    诊断信号处理方法和系统

    公开(公告)号:US07806825B2

    公开(公告)日:2010-10-05

    申请号:US10714020

    申请日:2003-11-14

    申请人: Warren P. Heim

    发明人: Warren P. Heim

    IPC分类号: A61B8/00

    CPC分类号: G06F17/141

    摘要: A signal processing utility is disclosed involving time-to-frequency domain transforms for applications including medical diagnostic signal processing. Such transforms can be used to define a continuous spectral density function or other spectral density function including nonzero values at irregularly spaced frequency intervals. The invention thereby enables more accurate representation of certain real spectra and reduced spectral broadening. The utility also accounts for digitization errors associated with analog-to-digital conversion. The invention has particular advantages with respect to medical contexts where the received signal has a changing spectral content as a result of interaction of an interrogating signal with moving physiological material such as blood flowing through an artery.

    摘要翻译: 公开了一种涉及用于包括医疗诊断信号处理的应用的时间 - 频域变换的信号处理实用程序。 可以使用这种变换来定义连续频谱密度函数或包括不规则间隔的频率间隔的非零值的其他频谱密度函数。 因此,本发明使得能够更精确地表示某些实际光谱并减少光谱展宽。 该实用程序还涉及与模数转换相关的数字化错误。 本发明在医疗情境方面具有特别的优点,其中接收到的信号由于询问信号与移动的生理材料(例如流经动脉的血液)的相互作用而具有变化的光谱含量。

    Method and system for obtaining dimension related information for a flow channel
    8.
    发明授权
    Method and system for obtaining dimension related information for a flow channel 有权
    用于获取流通道尺寸相关信息的方法和系统

    公开(公告)号:US07491173B2

    公开(公告)日:2009-02-17

    申请号:US10268113

    申请日:2002-10-09

    申请人: Warren P. Heim

    发明人: Warren P. Heim

    IPC分类号: A61B5/00

    摘要: A method and system for determination of dimension related information such as volumetric flow rate(s) of a fluid flowing through a channel. In one implementation, the method and system analyzes temporal changes in a moving fluid's velocity profile to calculate the fluid channel dimensions. In turn, the fluid channel dimensions and the fluid velocity profile data may be combined to calculate the volumetric flow rate of the fluid flowing through the channel. In this regard, the geometry of the channel can be characterized using dimensionless variables that relate dimensions, such as the radius across a circular cross-section, to the largest extent of a dimension. For example, in the case where the channel is a cylindrical tube and a pressure gradient is applied long enough for the fluid to have reached a steady state, the dimensionless radius will be the radius at any point divided by the overall radius of the tube. One or more dimensionless variables can be used to characterize geometries: for instance, one dimensionless radius characterizes a circular tube and two dimensionless terms characterize an elliptical tube (one for the major axis and one for the minor axis). The time required for velocity profiles to change from one shape to another may be characterized by dimensionless time. Dimensionless time, in turn, uses the fluid's viscosity and density along with time and overall channel dimensions and may be used in combination with at least one velocity profile to calculate the volumetric flow rate of the fluid flowing through the channel.

    摘要翻译: 用于确定尺寸相关信息的方法和系统,例如流过通道的流体的体积流量。 在一个实施方案中,该方法和系统分析移动流体的速度分布的时间变化以计算流体通道尺寸。 反过来,流体通道尺寸和流体速度分布数据可以被组合以计算流过通道的流体的体积流量。 在这方面,可以使用无量纲变量来表征通道的几何形状,其将尺寸(例如圆形横截面上的半径)与尺寸的最大程度相关联。 例如,在通道是圆柱形管并且施加足够长的压力梯度以使流体达到稳定状态的情况下,无量纲半径将是在任何点除以管的总半径的半径。 一个或多个无量纲变量可用于表征几何:例如,一个无量纲半径表征圆管,两个无量纲术语表征椭圆管(一个用于长轴,一个用于短轴)。 速度分布从一个形状变为另一个形状所需的时间可以是无量纲时间的特征。 无尺寸时间反过来又使用流体的粘度和密度以及时间和总体通道尺寸,并且可以与至少一个速度分布组合使用,以计算流过通道的流体的体积流量。

    Electrosurgical mode conversion system
    9.
    发明授权
    Electrosurgical mode conversion system 有权
    电外科手术模式转换系统

    公开(公告)号:US07175621B2

    公开(公告)日:2007-02-13

    申请号:US10723320

    申请日:2003-11-25

    IPC分类号: A61B18/18

    摘要: A surgical system that applies electrical energy to obtain predetermined surgical effects while improving the control of the application of the energy that is supplied by electrosurgical generators. In one embodiment, a surgical assembly interfaces with and receives power from an electrosurgical generator for executing a first electrosurgical procedure. This surgical assembly may employ a shunt circuit between its power and return lines for providing in effect a voltage limitation and/or to allow a constant power electrosurgical generator to execute an at least substantially constant voltage electrosurgical technique. The electrosurgical assembly may also include a return coupler for directing energy from the patient back to the electrosurgical generator, which in turn may include a dielectric material which interfaces with the patient and which at least initially conveys the return energy via one or more electric fields versus conduction.

    摘要翻译: 一种外科系统,其在改善由电外科发生器提供的能量的应用的控制的同时,施加电能以获得预定的手术效果。 在一个实施例中,外科手术组件与电外科发生器接触并接收来自执行第一电外科手术的电力。 该手术组件可以在其功率和返回线路之间使用分流电路,以实际提供电压限制和/或允许恒定功率的电外科发生器执行至少基本恒定的电压电外科技术。 电外科组件还可以包括用于将能量从患者引导回到电外科发生器的返回耦合器,其又可以包括与患者接合的介电材料,并且至少最初通过一个或多个电场传送返回能量相对于 传导。

    Electrosurgical mode conversion system
    10.
    发明授权
    Electrosurgical mode conversion system 有权
    电外科手术模式转换系统

    公开(公告)号:US06692489B1

    公开(公告)日:2004-02-17

    申请号:US09619919

    申请日:2000-07-20

    IPC分类号: A61B1818

    摘要: A surgical system that applies electrical energy to obtain predetermined surgical effects while improving the control of the application of the energy that is supplied by electrosurgical generators. In one embodiment, a surgical assembly interfaces with and receives power from an electrosurgical generator for executing a first electrosurgical procedure. This surgical assembly may employ a shunt circuit between its power and return lines for providing in effect a voltage limitation and/or to allow a constant power electrosurgical generator to execute an at least substantially constant voltage electrosurgical technique. The electrosurgical assembly may also include a return coupler for directing energy from the patient back to the electrosurgical generator, which in turn may include a dielectric material which interfaces with the patient and which at least initially conveys the return energy via one or more electric fields versus conduction.

    摘要翻译: 一种外科系统,其在改善由电外科发生器提供的能量的应用的控制的同时,施加电能以获得预定的手术效果。 在一个实施例中,外科手术组件与电外科发生器接触并接收来自执行第一电外科手术的电力。 该手术组件可以在其功率和返回线路之间使用分流电路,以实际提供电压限制和/或允许恒定功率的电外科发生器执行至少基本恒定的电压电外科技术。 电外科组件还可以包括用于将能量从患者引导回到电外科发生器的返回耦合器,其又可以包括与患者接口的介电材料,并且至少最初通过一个或多个电场传送返回能量相对于 传导。