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34 条记录 (耗时 0.038 秒)

    Multi-site hybrid hardware-based cardiac pacemaker
    11.
    发明授权
    Multi-site hybrid hardware-based cardiac pacemaker 有权
    多站点混合硬件心脏起搏器

    公开(公告)号：US06427084B2

    公开(公告)日：2002-07-30

    申请号：US09514813

    申请日：2000-02-28

    申请人： Kenneth L. Baker ,  Doug M. Birkholz ,  David L. Perschbacher ,  Andrew P. Kramer ,  Gary T. Seim

    发明人： Kenneth L. Baker ,  Doug M. Birkholz ,  David L. Perschbacher ,  Andrew P. Kramer ,  Gary T. Seim

    IPC分类号： A61N1362

    CPC分类号： A61N1/368 ,  A61N1/3622 ,  A61N1/3684

    摘要： A hybrid cardiac pacemaker in which the operation of the device is controlled by hardware-based controller as supervised by a microprocessor-based controller. The hardware-based controller comprises a plurality of timers that expire when they reach timer limit values stored in registers updatable by the microprocessor, and a combinational logic array for causing the device to generate pace outputs in accordance with timer expirations and sense signals. The combinational logic array may operate the pacemaker in a number of programmed modes in accordance with a mode value stored in a mode control register by the microprocessor.

    摘要翻译： 一种混合心脏起搏器，其中由基于微处理器的控制器监控的由基于硬件的控制器控制该设备的操作。 基于硬件的控制器包括多个定时器，当它们达到存储在可由微处理器更新的寄存器中的定时器限制值时，该定时器到期，以及组合逻辑阵列，用于使该设备根据定时器期满和感测信号产生步进输出。 组合逻辑阵列可以根据由微处理器存储在模式控制寄存器中的模式值，以多种编程模式操作起搏器。

    Method for optimizing the bandwidth of a radio receiver
    13.
    发明授权
    Method for optimizing the bandwidth of a radio receiver 失效
    优化无线电接收机带宽的方法

    公开(公告)号：US4045740A

    公开(公告)日：1977-08-30

    申请号：US625807

    申请日：1975-10-28

    申请人： Kenneth L. Baker

    发明人： Kenneth L. Baker

    IPC分类号： H03G5/14 ,  H04B1/16 ,  H04B1/28

    CPC分类号： H03G5/14 ,  H04B1/163 ,  H04B1/28

    摘要： A method is disclosed for optimizing the bandwidth of a radio receiver cale of receiving widely varying input data rates. The method may be utilized with known superheterodyne receivers having certain modifications to allow for the ability to vary the intermediate frequency and the center frequency of the associated bandpass filters over a continuous range of values. The method includes the steps of determining the optimum intermediate frequency bandwidth for a given input data rate, adjusting a tunable bandwidth filter to a center frequency which is a predetermined multiple of the desired intermediate frequency bandwidth, and producing an intermediate frequency equal to the tuned frequency of the filter.

    Timing refractory period for cardiac resynchronization pacing
    16.
    发明授权
    Timing refractory period for cardiac resynchronization pacing 有权

    公开(公告)号：US06704599B2

    公开(公告)日：2004-03-09

    申请号：US09852125

    申请日：2001-05-09

    申请人： Kenneth L. Baker

    发明人： Kenneth L. Baker

    IPC分类号： A61N1362

    CPC分类号： A61N1/362

    摘要： A device and method for cardiac rhythm management in which a heart chamber is paced in accordance with a pacing mode that employs sense signals from the opposite chamber. A sensing refractory period is provided in order to prevent the pacing interval from being lengthened due to delays in conduction of excitation from the paced chamber to the sensed chamber.

    Alignment correction for laser print heads
    17.
    发明授权
    Alignment correction for laser print heads 失效
    激光打印头对准校正

    公开(公告)号：US5841463A

    公开(公告)日：1998-11-24

    申请号：US672161

    申请日：1996-06-27

    申请人： John R. Debesis ,  Kenneth L. Baker

    发明人： John R. Debesis ,  Kenneth L. Baker

    IPC分类号： B41J2/45 ,  B41J2/47 ,  G02B26/00

    CPC分类号： B41J2/451

    摘要： An apparatus and method of manufacturing a laser print head include the steps of mounting a laser array (70) on a print head block (80), measuring misalignment of the laser array (70) to determine a correction factor, mounting a cylinder lens (20) on a cylinder lens holder (25), inducing a predetermined bend into the cylinder lens (20) corresponding to the correction factor by allowing the cylinder lens (20) to sag on upright posts (26) of the cylinder lens holder (25), attaching the cylinder lens (20) to a sub-mount (30), attaching flexures (50) to the sub-mount (30), aligning the cylinder lens (20) to the laser array (70), and attaching the flexures (50) to the print head block (80). The bend in the cylinder lens corrects for misalignment in the laser array (70) so that the array of spots at the image plane is in an approximately straight line. In one embodiment, the sub-mount and cylinder lens have approximately the same thermal coefficient of expansion.

    摘要翻译： 制造激光打印头的装置和方法包括以下步骤：将激光阵列（70）安装在打印头块（80）上，测量激光阵列（70）的未对准以确定校正因子，安装圆柱透镜 20），通过允许气缸透镜（20）垂直于气缸透镜保持器（25）的直立柱（26）而垂直于与校正系数对应的预定弯曲到柱面透镜（20）中， ），将柱面透镜（20）附接到副安装件（30），将弯曲件（50）附接到副安装座（30），将柱面透镜（20）对准激光器阵列（70），并将 向打印头块（80）弯曲（50）。 圆柱透镜中的弯曲校正激光器阵列（70）中的未对准，使得像平面处的点阵列处于大致直线。 在一个实施例中，副安装座和柱面透镜具有大致相同的热膨胀系数。

    Atrioventricular delay adjustment enhancing ventricular tachyarrhythmia detection
    18.
    发明授权
    Atrioventricular delay adjustment enhancing ventricular tachyarrhythmia detection 有权
    房室延迟调整增强室性快速性心律失常检测

    公开(公告)号：US07844332B2

    公开(公告)日：2010-11-30

    申请号：US11676464

    申请日：2007-02-19

    申请人： David L. Perschbacher ,  Kenneth L. Baker

    发明人： David L. Perschbacher ,  Kenneth L. Baker

    IPC分类号： A61N1/365

    CPC分类号： A61N1/3622 ,  A61N1/3684

    摘要： This document discusses, among other things, an apparatus comprising an atrial sensing circuit, a ventricular sensing circuit and an atrioventricular (AV) delay adjustment circuit. The atrial sensing circuit detects a first fast atrial pace that concludes a timing interval that is shorter than or equal to a first threshold value. The ventricular sensing circuit detects a first condition that comprises a sensed intrinsic first fast ventricular contraction that occurs within a specified first period of a most recently detected first fast atrial pace. The fast ventricular contraction concludes a timing interval that is shorter than or equal to a second threshold value. The AV delay adjustment circuit attempts to decrease an AV delay at least in part in response to detecting the first condition. Other apparatuses and methods are disclosed.

    摘要翻译： 本文件尤其涉及包括心房感测电路，心室感测电路和房室（AV）延迟调节电路的装置。 心房感测电路检测到第一快速心房速度，其结束短于或等于第一阈值的定时间隔。 心室感测电路检测包括感测到的内在的第一快速心室收缩的第一状况，其发生在最近检测的第一快速心房步速的指定的第一时段内。 快速心室收缩结束时间间隔短于或等于第二阈值。 至少部分地响应于检测到第一条件，AV延迟调整电路尝试减小AV延迟。 公开了其他装置和方法。

    Reduction of left-ventricular offset interaction with tachyarrhythmia detection
    19.
    发明授权
    Reduction of left-ventricular offset interaction with tachyarrhythmia detection 有权
    减慢与心律失常检测的左心室偏移相互作用

    公开(公告)号：US07801609B2

    公开(公告)日：2010-09-21

    申请号：US11522691

    申请日：2006-09-18

    申请人： Kenneth L. Baker ,  David L. Perschbacher ,  Andrew P. Kramer ,  Jeffrey E. Stahmann

    发明人： Kenneth L. Baker ,  David L. Perschbacher ,  Andrew P. Kramer ,  Jeffrey E. Stahmann

    IPC分类号： A61N1/00

    CPC分类号： A61N1/3627 ,  A61N1/3684

    摘要： A device and method for improving tachyarrhythmia detection when the ventricles are resynchronized by delivering paces to both ventricles separated by a specified offset interval. Timing of escape intervals and tachyarrhythmia detection is based upon senses from one of the ventricles designated as a rate ventricle. A reversion pacing mode is provided in order to prevent tachyarrhythmia detection from being compromised when the rate ventricle is paced after the other ventricle.

    摘要翻译： 通过向两个心室分配指定的偏移间隔来逐步重新同步心室，从而改善快速性心律失常检测的装置和方法。 逃避间隔和快速性心律失常检测的时间是基于指定为速率心室的心室之一的感觉。 提供回波起搏模式，以便当速率心室在另一脑室之后起搏时，防止快速性心律失常检测受到损害。

    Cardiac rhythm management system with optimization of cardiac performance using heart rate
    20.
    发明授权
    Cardiac rhythm management system with optimization of cardiac performance using heart rate 有权
    心脏节律管理系统使用心率优化心脏性能

    公开(公告)号：US07194305B1

    公开(公告)日：2007-03-20

    申请号：US09545536

    申请日：2000-04-07

    申请人： Rodney W. Salo ,  Lawrence S. Baumann ,  Kenneth L. Baker

    发明人： Rodney W. Salo ,  Lawrence S. Baumann ,  Kenneth L. Baker

    IPC分类号： A61N1/00

    CPC分类号： A61N1/3702 ,  A61N1/3627 ,  A61N1/3682 ,  A61N1/3684 ,  A61N1/3688

    摘要： A cardiac rhythm management device includes a dual chamber pacemaker, especially designed for treating congestive heart failure by pacing a plurality of sites. The device incorporates a program microcontroller which is operative to adjust the pacing mode and inter-site delay of the pacemaker so as to achieve optimum hemodynamic performance. Atrial cycle lengths measured during transient (immediate) time intervals following a change in the mode inter-site delay are signal processed and a determination can then be made as to which particular configuration yields the optimum performance. Performance is optimized when the patient is at rest and when the patient exercises so that a rate-adapted dynamic value of the optimum performance can be applied.

    摘要翻译： 心律管理装置包括双室起搏器，其特别设计用于通过起搏多个部位治疗充血性心力衰竭。 该装置包括程序微控制器，其可操作以调节起搏器的起搏模式和位置​​间延迟，以实现最佳血液动力学性能。 信号处理后的瞬时（即时）时间间隔内测量的心房周期长度被信号处理，然后可以确定哪个特定配置产生最佳性能。 当患者处于静止状态并且患者锻炼时优化性能，以便可以应用最佳性能的速率适应动态值。