Switched capacitor defibrillation circuit
    1.
    发明申请
    Switched capacitor defibrillation circuit 审中-公开
    开关电容除颤电路

    公开(公告)号:US20050021094A1

    公开(公告)日:2005-01-27

    申请号:US10913037

    申请日:2004-08-06

    IPC分类号: A61N1/39

    摘要: A defibrillator circuit for generating a rectangular waveform across a patient from capacitively stored energy and employing a plurality of capacitors initially chargeable to a common voltage and thereafter sequentially switchable into parallel relation with one another so as to raise the voltage supplied to an H-bridge circuit from a point of decay back to said common voltage.

    摘要翻译: 一种除颤器电路,用于从电容性存储的能量产生横跨患者的矩形波形,并且采用开始可充电到公共电压的多个电容器,然后可以顺序地切换成彼此平行的关系,以便提高提供给H桥电路的电压 从衰减点回到所述共同电压。

    Electronic tonometer with baseline nulling system
    2.
    发明授权
    Electronic tonometer with baseline nulling system 失效
    电子眼压计具有基线归零系统

    公开(公告)号:US4747296A

    公开(公告)日:1988-05-31

    申请号:US781240

    申请日:1985-09-27

    IPC分类号: A61B3/16 G01L27/00

    CPC分类号: A61B3/16

    摘要: Disclosed is a battery powered, hand-held self-contained electronic tonometer with a digital readout for displaying pressure in millimeters of mercury. The tonometer includes a transducer which is a solid state pressure sensitive element and which produces a voltage proportional to intraocular pressure. An electrical waveform is produced by gently bringing the transducer in contact with the cornea. The waveform is converted to a digital signal and processed by a single chip microprocessor. The baseline of a reference signal is nulled by equalizing the charges on two capacitors on the inputs of two differential amplifiers. Equalizing the differential inputs of the two amplifier stages results in a gain of zero and removes any carrier signal. Microprocessor software detects the baseline condition established by equalizing the differential inputs. The microprocessor then looks for a series of valid measurements and calculates the average intraocular pressure along with an estimate of reliability. This average value and the reliability indicator are displayed on a liquid crystal display.

    摘要翻译: 公开了一种电池供电的手持式独立电子眼压计,具有用于显示毫米汞柱压力的数字读数器。 眼压计包括作为固态压敏元件并且产生与眼内压成比例的电压的换能器。 通过轻轻地使传感器与角膜接触来产生电波形。 波形转换为数字信号,并由单片微处理器处理。 通过对两个差分放大器的输入端上的两个电容器的电荷进行均衡,使参考信号的基线为零。 均衡两个放大器级的差分输入导致增益为零并且去除任何载波信号。 微处理器软件检测通过均衡差分输入建立的基线条件。 然后,微处理器寻找一系列有效的测量值,并计算平均眼压以及可靠性估计值。 该平均值和可靠性指示器显示在液晶显示器上。

    Automatic defibrillator module for integration with standard patient monitoring equipment
    3.
    发明授权
    Automatic defibrillator module for integration with standard patient monitoring equipment 失效
    自动除颤器模块,用于与标准的患者监测设备集成

    公开(公告)号:US07006865B1

    公开(公告)日:2006-02-28

    申请号:US09523912

    申请日:2000-03-09

    IPC分类号: A61N1/40

    CPC分类号: A61N1/39 A61N1/3925

    摘要: A defibrillator module is described which includes a cardiac sensor, a pulse generator and a controller that generates commands responsive to intrinsic cardiac signals for the operation of said pulse generator. The defibrillator module synergistic and arranged so that it can be coupled to a generic patient monitor so that the two can share certain functions. For example, operational parameters and other signals indicative of the operation of the defibrillator module can be shown to the clinician by the patient monitor. Data between the defibrillator module and the patient monitor is exchanged using either a standard or a customized protocol.

    摘要翻译: 描述了除颤器模块,其包括心脏传感器,脉冲发生器和控制器,其产生响应于内部心脏信号用于所述脉冲发生器的操作的命令。 除颤器模块协同和布置,使得其可以耦合到通用的患者监护仪,使得两者可以共享某些功能。 例如,可以由患者监视器向临床医生显示指示除颤器模块的操作的操作参数和其它信号。 除颤器模块和患者监护仪之间的数据使用标准或定制协议进行交换。

    Digital ultrasonic instrument for ophthalmic use
    4.
    发明授权
    Digital ultrasonic instrument for ophthalmic use 失效
    数码超声波眼镜用仪器

    公开(公告)号:US4817432A

    公开(公告)日:1989-04-04

    申请号:US781257

    申请日:1985-09-27

    摘要: Disclosed is a digital ultrasonic instrument for measuring the corneal thickness (often referred to as a pachymeter) and for measuring the axial length of the eye (often referred to as a biometric ruler). A number representing corneal thickness or axial length is displayed digitally on a liquid crystal display. The pachymeter incorporates a 20 MHz solid phase piezoelectric transducer, a microprocessor, a gate array, a hybrid analog receiver circuit, a liquid crystal display and four batteries. When axial length is measured, the instrument operates as a biometric ruler, a 10 MHz transducer is used and the software in the microprocessor is modified. Ultrasonic echoes generated by the transducer and various interfaces in the eye are sampled at the rate of 40 MHz which results in equal or greater sensitivity, resolution and accuracy as compared to other pachymeters and biometric rulers currently available. The 40 MHz sample rate is accomplished by use of a grey code counter and a binary counter, each of which is sampled twice after an ultrasonic echo is detected. The two grey code samples are compared to determine a valid sample period. A counter value obtained during a valid sample period is recorded in a shift register and compared to subsequent counter values corresponding to subsequent ultrasonic echoes. The apparatus for correlating ultrasonic echoes with particular counter values assures that the counter will be sampled at a point in time when the counter is stable as opposed to being in a state of transition. The apparatus allows for a counter accuracy of 25 ns.

    摘要翻译: 公开了一种用于测量角膜厚度的数字超声波仪器(通常称为比表计),并用于测量眼睛的轴向长度(通常称为生物统计尺)。 表示角膜厚度或轴向长度的数字以数字方式显示在液晶显示器上。 脉宽计包含20MHz固相压电换能器,微处理器,门阵列,混合模拟接收器电路,液晶显示器和四个电池。 当测量轴向长度时,仪器作为生物统计尺寸,使用10 MHz传感器,并修改微处理器中的软件。 由传感器和眼睛各种界面产生的超声波回波以40 MHz的速率进行采样,与目前可用的其他仪器和生物统计尺相比,其灵敏度,分辨率和准确度等于或高于其他值。 通过使用灰度代码计数器和二进制计数器来实现40MHz采样率,每个计数器在检测到超声回波之后被采样两次。 比较两个灰色代码样本以确定有效的采样周期。 在有效采样周期中获得的计数器值记录在移位寄存器中,并与后续超声波回波对应的后续计数器值进行比较。 用于将超声回波与特定计数器值相关联的装置确保计数器将在计数器稳定而不是处于转换状态的时间点被采样。 该装置允许25ns的计数精度。

    AUTOMATIC DEFIBRILLATOR MODULE FOR INTEGRATION WITH STANDARD PATIENT MONITORING EQUIPMENT
    5.
    发明申请
    AUTOMATIC DEFIBRILLATOR MODULE FOR INTEGRATION WITH STANDARD PATIENT MONITORING EQUIPMENT 审中-公开
    用于整合标准患者监测设备的自动消除器模块

    公开(公告)号:US20090131997A1

    公开(公告)日:2009-05-21

    申请号:US12326685

    申请日:2008-12-02

    IPC分类号: A61N1/365 A61B5/0402

    CPC分类号: A61N1/39 A61N1/3925

    摘要: A defibrillator module is described which includes a cardiac sensor, a pulse generator and a controller that generates commands responsive to intrinsic cardiac signals for the operation of said pulse generator. The defibrillator module synergistic and arranged so that it can be coupled to a generic patient monitor so that the two can share certain functions. For example, operational parameters and other signals indicative of the operation of the defibrillator module can be shown to the clinician by the patient monitor. Data between the defibrillator module and the patient monitor is exchanged using either a standard or a customized protocol.

    摘要翻译: 描述了除颤器模块,其包括心脏传感器,脉冲发生器和控制器,其产生响应于内部心脏信号用于所述脉冲发生器的操作的命令。 除颤器模块协同和布置,使得其可以耦合到通用的患者监护仪,使得两者可以共享某些功能。 例如,可以由患者监视器向临床医生显示指示除颤器模块的操作的操作参数和其它信号。 除颤器模块和患者监护仪之间的数据使用标准或定制协议进行交换。

    Current waveforms for anti-bradycardia pacing for a subcutaneous implantable cardioverter-defibrillator
    8.
    发明申请
    Current waveforms for anti-bradycardia pacing for a subcutaneous implantable cardioverter-defibrillator 有权
    用于皮下植入式心律转复除颤器的抗心动过缓起搏的电流波形

    公开(公告)号:US20050143778A1

    公开(公告)日:2005-06-30

    申请号:US11060869

    申请日:2005-02-18

    IPC分类号: A61N1/375 A61N1/39 A61N1/362

    摘要: A power supply for an implantable cardioverter-defibrillator for subcutaneous positioning between the third rib and the twelfth rib and using a lead system that does not directly contact a patient's heart or reside in the intrathoracic blood vessels and for providing anti-bradycardia pacing energy to the heart, comprising a capacitor subsystem for storing the anti-bradycardia pacing energy for delivery to the patient's heart; and a battery subsystem electrically coupled to the capacitor subsystem for providing the anti-bradycardia pacing energy to the capacitor subsystem.

    摘要翻译: 一种用于可植入式心律转复除颤器的电源,用于在第三肋骨和第十二肋骨之间皮下定位并使用引导系统,其不直接接触患者的心脏或者位于胸腔内血管内并且用于向患者的心脏起搏能量提供抗心动过缓起搏能量 心脏,包括用于存储用于递送至患者心脏的抗心动过缓起搏能量的电容器子系统; 以及电耦合到电容器子系统的电池子系统,用于向电容器子系统提供抗心动过缓起搏能量。