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    • 7. 发明申请
    • Enhanced Microfluidic Electromagnetic Measurements
    • 增强微流控电磁测量
    • US20120084022A1
    • 2012-04-05
    • US13250605
    • 2011-09-30
    • Laurent GiovangrandiAntonio J. RiccoGregory Kovacs
    • Laurent GiovangrandiAntonio J. RiccoGregory Kovacs
    • G01F1/58G06F19/00
    • G01F1/58G01F1/584G01F1/586G01F1/588
    • Techniques for enhanced microfluidic impedance spectroscopy include causing a core fluid to flow into a channel between two sheath flows of one or more sheath fluids different from the core fluid. Flow in the channel is laminar. A dielectric constant of a fluid constituting either sheath flow is much less than a dielectric constant of the core fluid. Electrical impedance is measured in the channel between at least a first pair of electrodes. In some embodiments, enhanced optical measurements include causing a core fluid to flow into a channel between two sheath flows of one or more sheath fluids different from the core fluid. An optical index of refraction of a fluid constituting either sheath flow is much less than an optical index of refraction of the core fluid. An optical property is measured in the channel.
    • 用于增强的微流体阻抗光谱的技术包括使核心流体流入不同于核心流体的一种或多种鞘液的两个鞘流之间的通道中。 通道中的流动是层流。 构成鞘流的流体的介电常数远小于芯流体的介电常数。 在至少第一对电极之间的通道中测量电阻抗。 在一些实施例中,增强的光学测量包括使芯流体流入不同于芯流体的一种或多种护套流体的两个鞘流之间的通道中。 构成鞘流的流体的光学折射率远小于芯流体的光学折射率。 在通道中测量光学性质。
    • 8. 发明申请
    • Physiologic monitoring initialization systems and methods
    • 生理监测初始化系统和方法
    • US20070208232A1
    • 2007-09-06
    • US11367155
    • 2006-03-03
    • Gregory Kovacs
    • Gregory Kovacs
    • A61B5/00A61B5/04A61B5/08A61B5/103
    • A61B5/02055A61B5/0402A61B5/04325A61B5/053A61B5/085A61B5/1116A61B5/1118A61B5/14551A61B5/4866A61B5/6831A61B2562/0219
    • According to one aspect, physiologic monitor and/or firmware piracy are reduced by initializing physiologic monitors in the field, e.g. in medical facilities or user homes, upon verifying user authorization. A physiologic monitor may include sensors such as electrocardiogram (ECG) electrodes, accelerometers, respiratory and/or fluid load impedance electrodes, and a temperature sensor. The monitor may be connected to an initialization console, which activates and configures the monitor by transferring an authorization code, firmware, a set of enabled sensors and sampling rates, a set of customized voice messages, and other parameters, and/or by programming a programmable logic array. The initialization console may be a computer situated in a doctor's office or user's home, programmed with initialization and analysis software, and capable of connecting to an authorization server at a time of use. Physiologic monitoring and configuration/authorization data may be stored in a removable digital memory capable of use with multiple disposable monitors.
    • 根据一个方面,通过初始化现场的生理监视器来减少生理监视和/或固件盗版,例如。 在医疗设施或用户家庭中,在验证用户授权时。 生理监视器可以包括诸如心电图(ECG)电极,加速度计,呼吸和/或流体负载阻抗电极的传感器以及温度传感器。 显示器可以连接到初始化控制台,其通过传送授权码,固件,一组启用的传感器和采样率,一组定制的语音消息和其他参数来激活和配置监视器,和/或通过编程 可编程逻辑阵列。 初始化控制台可以是位于医生办公室或用户家中的计算机,用初始化和分析软件编程,并且能够在使用时连接到授权服务器。 生理监测和配置/授权数据可以存储在能够与多个一次性监视器一起使用的可移动数字存储器中。
    • 9. 发明申请
    • Closed-loop electrical stimulation system for cell cultures
    • 用于细胞培养的闭环电刺激系统
    • US20050282149A1
    • 2005-12-22
    • US11137721
    • 2005-05-24
    • Gregory KovacsR. Whittington
    • Gregory KovacsR. Whittington
    • C12Q1/00G01N33/487
    • G01N33/4836
    • The present invention provides a sensitive system for measuring the physiological response of an in-vitro cell culture to an environmental parameter. An electrical property of the cell culture is measured as a control signal, and a parameter of a stimulus is adjusted in real time to maintain the control signal at a specified value as the environment of the cell culture is altered, for example, pharmacologically. Artifact reduction and real-time control methods are two key aspects of preferred embodiments of the invention, and enable highly accurate determination of pulse parameters which elicit a desired response. Both aspects must be highly robust to the natural variations inherent in a biological system. This system is beneficial for studying the effects of environmental alterations because extremely small changes in the physiological response can be measured over time, revealing the magnitude and time-dependence of the impact of these alterations on the cell culture.
    • 本发明提供了一种用于测量体外细胞培养物对环境参数的生理反应的敏感系统。 测量细胞培养物的电性质作为对照信号,并且例如在药理学上改变细胞培养物的环境时,实时调整刺激参数以将控制信号维持在规定值。 人造物减少和实时控制方法是本发明的优选实施例的两个关键方面,并且能够高精度地确定引起期望响应的脉冲参数。 这两个方面对于生物系统中固有的自然变异必须是高度鲁棒的。 该系统有利于研究环境变化的影响,因为可以随时间测量生理反应的极小变化,揭示这些改变对细胞培养的影响的程度和时间依赖性。
    • 10. 发明授权
    • High accuracy disposable cassette infusion pump
    • 高精度一次性盒式输液泵
    • US5006050A
    • 1991-04-09
    • US283107
    • 1988-12-09
    • James E. CookePhilip BarkanGregory Kovacs
    • James E. CookePhilip BarkanGregory Kovacs
    • A61M5/142F04B43/04F04B49/00
    • F04B49/005A61M5/14224F04B43/04A61M2205/6072
    • An infusion pump for delivery of drugs to a patient includes a unit in which the pump mechanism is situated and a cassette through which the drugs to be delivered to the patient are pumped. The cassette includes a path for the fluid to flow from a drug vial to an outlet port. Disposed along the path are recesses for an inlet valve, a pressurization region, and an outlet valve. The cassette is sealed by an elastomeric layer to maintain the drugs to be delivered in a contaminant-free condition. The pump includes an inlet valve which has a contour matching the recess of the inlet port, and an outlet valve matching the recess of the outlet port. By biasing the inlet and outlet valves against the recesses, a pumping chamber is created. A piston in the unit pressurizes the pumping chamber to open the outlet valve and permit fluid to escape. By appropriate timing of the operation of the inlet valve and the piston, a continuous stream of fluid is delivered by the pump to the patient.
    • 用于将药物递送到患者的输液泵包括其中泵机构所在的单元和用于泵送待递送给患者的药物的盒。 所述盒包括用于流体从药瓶流向出口的路径。 沿着路径布置的是用于入口阀,加压区域和出口阀的凹槽。 该盒由弹性体层密封,以使药物在无污染的条件下被输送。 泵包括入口阀,其具有与入口端口的凹部匹配的轮廓,以及与出口的凹部匹配的出口阀。 通过将入口和出口阀偏置抵靠凹槽,产生泵送室。 该单元中的活塞对泵送室加压以打开出口阀并允许流体逸出。 通过入口阀和活塞的适当操作时间,连续的流体流被泵输送到病人身上。