Therapeutic device and method for treating diseases of cardiac muscle
    71.
    发明授权
    Therapeutic device and method for treating diseases of cardiac muscle 有权
    用于治疗心肌疾病的治疗装置和方法

    公开(公告)号:US06560489B2

    公开(公告)日:2003-05-06

    申请号:US09756567

    申请日:2001-01-08

    申请人: John A. Hauck

    发明人: John A. Hauck

    IPC分类号: A61N108

    CPC分类号: A61N1/08 A61N1/326 A61N1/3627

    摘要: An apparatus and method for conferring a therapeutic current to the heart is provided. The apparatus includes a first electrode, a second electrode, a current generator and a controller. The apparatus may further include a sensor. The sensor is generally configured to measure field strength between the first and second electrode. The sensor may also monitor the cardiac cycle. The method includes applying an electric stimulus to the heart and sensing the electric field generated by the electric stimulus to prevent the level of current from inducing unwanted depolarization.

    摘要翻译: 提供了一种赋予心脏治疗电流的装置和方法。 该装置包括第一电极,第二电极,电流发生器和控制器。 该装置还可以包括传感器。 传感器通常被配置成测量第一和第二电极之间的场强。 传感器还可以监测心脏周期。 该方法包括对心脏施加电刺激并感测由电刺激产生的电场以防止电流水平引起不希望的去极化。

    Dual indifferent electrode pacemaker
    72.
    发明授权
    Dual indifferent electrode pacemaker 失效
    双重无动于衷的电极起搏器

    公开(公告)号:US5284136A

    公开(公告)日:1994-02-08

    申请号:US698789

    申请日:1991-05-13

    IPC分类号: A61N1/365 A61N1/362

    CPC分类号: A61N1/36521

    摘要: An endocardial lead having first and second spaced apart electrodes resides in a patient's heart. The first electrode is a sensing electrode and the second electrode is a carrier signal driving electrode. The lead has a conductor coupling a source of alternating current carrier signals of a predetermined frequency to the second electrode. A third electrode is in electrical contact with body tissues. A cardiac pacer apparatus includes a pacer can which functions as a fourth electrode and has a plastic top wherein the third electrode is located. Said third electrode acts in cooperation with the first electrode to form a pair of sensing electrodes. The sensing electrode pair is further coupled to a sense amplifier for receiving an amplifying modulated electrical signals developed across the sensing electrode pair. A demodulator and filters circuit for demodulating the modulated carrier signal and recovering the modulating signal therefrom is connected to the output of the sense amplifier. The modulating signal is proportional to instantaneous stroke volume of the patient's heart and the demodulator and filters circuit develops a control signal therefrom called a stroke volume signal. The control signal is applied to the pulse generator so as to control the rate of stimulating pulses.

    摘要翻译: 具有第一和第二间隔开的电极的心内膜引线驻留在患者的心脏中。 第一电极是感测电极,第二电极是载体信号驱动电极。 引线具有将预定频率的交流载波信号源耦合到第二电极的导体。 第三电极与身体组织电接触。 心脏起搏器装置包括作为第四电极并具有第三电极所在的塑料顶部的起搏罐。 所述第三电极与第一电极配合起作用以形成一对感测电极。 感测电极对还被耦合到读出放大器,用于接收在感测电极对上产生的放大调制电信号。 解调器和滤波器电路用于解调调制后的载波信号并从其中恢复调制信号连接到读出放大器的输出端。 调制信号与患者心脏的瞬时行程体积成正比,解调器和滤波器电路产生一个控制信号,称为行程音量信号。 控制信号被施加到脉冲发生器,以便控制刺激脉冲的速率。

    Devices and methods for catheter localization
    74.
    发明授权
    Devices and methods for catheter localization 有权
    导管定位的装置和方法

    公开(公告)号:US08700129B2

    公开(公告)日:2014-04-15

    申请号:US12347271

    申请日:2008-12-31

    IPC分类号: A61B5/05 A61B5/06

    摘要: A medical device can be localized by providing at least three non-colinear localization elements (e.g., electrodes) thereon. Once placed in a non-ionizing localization field, three adjacent localization elements, at least one of which will typically be a spot electrode, may be selected, and the non-ionizing localization field may be used to measure their locations. A cylinder is defined to fit the measured locations of the selected localization elements. The cylinder is rotationally oriented using the measured location of a spot electrode. Location and rotational attitude information may be used to construct a three-dimensional representation of the medical device within the localization field. The electrodes may be provided on the medical device or on a sheath into which the medical device is inserted. The invention also provides systems and methods for identifying and calibrating deflection planes where the medical device and/or sheath are deflectable.

    摘要翻译: 可以通过在其上提供至少三个非共线定位元件(例如电极)来定位医疗装置。 一旦放置在非电离定位场中,可以选择三个相邻的定位元件,其中至少一个定位元件通常是点电极,并且非电离定位域可用于测量它们的位置。 气缸被定义为适合所选定位元件的测量位置。 圆柱体使用点电极的测量位置进行旋转定向。 位置和旋转姿态信息可以用于构建定位领域内的医疗装置的三维表示。 电极可以设置在医疗装置上或医疗装置插入的护套中。 本发明还提供用于识别和校准偏转平面的系统和方法,其中医疗装置和/或护套是可偏转的。

    Suspension and Body Attachment System and Differential Pressure Suit for Body Weight Support Devices
    75.
    发明申请
    Suspension and Body Attachment System and Differential Pressure Suit for Body Weight Support Devices 有权
    悬挂和身体附着系统和身体重量支撑装置的差压装置

    公开(公告)号:US20140026893A1

    公开(公告)日:2014-01-30

    申请号:US13839204

    申请日:2013-03-15

    IPC分类号: A61H3/00

    摘要: The present invention provides a differential pressure body suit with external support against body suit migration. In its preferred embodiment, such body suit may comprise a close-fitting, multi-layered suit sealed against a mammal's skin to contain the differential pressure, or a looser-fitting suit that bends at the mammal's joints with minimal force. External support means include either fixed or movable mechanical supports attached to the body suit, extraordinary air pressure levels for making the body suit rigid, or exoskeletons attached to the body suit, or a counter-force suspension cable adjustment system. A cyclic control system can turn the differential pressure condition within the body suit on and off on a selective basis to accommodate the movement of the legs of the mammal. This differential pressure body suit provides a portable and convenient system for, e.g., rehabilitating a skeletal joint injury or training the mammal for injury prevention or athletic performance or fat burning. The pressurization reduces the weight of the body to greater or lesser extents, and offloads the weight to the ground through the external support means.

    摘要翻译: 本发明提供了一种具有抵抗身体护套迁移的外部支撑的差压身体套装。 在其优选实施例中,这种身体套装可以包括紧密配合的多层衣服,其密封抵抗哺乳动物的皮肤以容纳压差,或者以最小的力在哺乳动物的关节处弯曲的较松散的衣服。 外部支撑装置包括固定或可移动的机械支撑件,其附接到身体套装,用于使身体适合刚性的非凡空气压力水平,或附接到身体套装的外骨骼,或反作用力悬挂缆线调节系统。 循环控制系统可以选择性地转动身体套装内的压差状态,以适应哺乳动物腿部的运动。 这种差压身体套装提供便携式和方便的系统,例如修复骨骼关节损伤或训练哺乳动物以进行伤害预防或运动表现或脂肪燃烧。 加压将身体的重量降低到更大或更小的程度,并通过外部支撑装置将重物卸载到地面上。

    Robotically controlled catheter and method of its calibration
    77.
    发明授权
    Robotically controlled catheter and method of its calibration 有权
    机器人控制的导管及其校准方法

    公开(公告)号:US08407023B2

    公开(公告)日:2013-03-26

    申请号:US13441249

    申请日:2012-04-06

    申请人: John A. Hauck

    发明人: John A. Hauck

    IPC分类号: G01C17/38 G06F19/00

    摘要: A method of calibrating a robotic device, such as a cardiac catheter, includes oscillating the device on an actuation axis by applying an oscillation vector at an oscillation frequency. While oscillating, a location of the device is periodically measured to generate a plurality of location data points, which may express the location of the device relative to a plurality of measurement axes. The location data points are then processed using a signal processing algorithm, such as a Fourier transform algorithm, to derive a transfer function relating a position of the device to a movement vector for the actuation axis. The transfer function may be resolved into and expressed as a calibration vector for the actuation axis, which may include one or more components, including zero components, directed along each of the measurement axes. The process may be repeated for any actuation axes on which calibration is desired.

    摘要翻译: 校准诸如心脏导管的机器人装置的方法包括通过施加振荡频率的振荡矢量来振荡装置在致动轴上。 在振荡的同时,周期性地测量设备的位置以产生多个位置数据点,其可以表示设备相对于多个测量轴的位置。 然后使用诸如傅立叶变换算法的信号处理算法来处理位置数据点,以导出将装置的位置与致动轴的运动矢量相关联的传递函数。 传递函数可以被解析为并且表示为用于致动轴的校准矢量,其可以包括沿着每个测量轴指向的一个或多个零件,包括零分量。 对于期望校准的任何致动轴,可以重复该过程。

    RADIO FREQUENCY ABLATION SERVO CATHETER AND METHOD
    80.
    发明申请
    RADIO FREQUENCY ABLATION SERVO CATHETER AND METHOD 有权
    无线电频率雷达服务器和方法

    公开(公告)号:US20120303013A1

    公开(公告)日:2012-11-29

    申请号:US13532266

    申请日:2012-06-25

    IPC分类号: A61B19/00 A61B18/18

    摘要: A system that interfaces with a workstation endocardial mapping system allows for the rapid and successful ablation of cardiac tissue. The system allows a physician to see a representation of the physical location of a catheter in a representation of an anatomic model of the patient's heart. The workstation is the primary interface with the physician. A servo catheter having pull wires and pull rings for guidance and a servo catheter control system are interfaced with the workstation. Servo catheter control software may run on the workstation. The servo catheter is coupled to an RF generator. The physician locates a site for ablation therapy and confirms the location of the catheter. Once the catheter is located at the desired ablation site, the physician activates the RF generator to deliver the therapy.

    摘要翻译: 与工作站心内膜贴图系统相连的系统允许快速且成功地消融心脏组织。 该系统允许医师在患者心脏的解剖模型的表示中看到导管的物理位置的表示。 工作站是与医师的主要接口。 具有用于引导的拉线和拉环的伺服导管和伺服导管控制系统与工作站接口。 伺服导管控制软件可以在工作站上运行。 伺服导管连接到RF发生器。 医生定位一个消融治疗的部位,并确认导管的位置。 一旦导管位于所需的消融部位,医师激活RF发生器以递送治疗。