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1.发明申请Flow Control System and Method with Variable Pressure and Variable Resistance 有权流量控制系统和可变压力和可变电阻的方法公开(公告)号：US20090026146A1
公开(公告)日：2009-01-29
申请号：US12280924
申请日：2007-02-27
IPC分类号： B01D35/14
CPC分类号： G01F22/02 , A61M5/1483 , A61M5/16804 , A61M5/16886 , A61M2205/3306
摘要： An infusion pump and method are provided which control flow rates with variable fluid pressure and variable series flow resistance.
摘要翻译： 提供一种输液泵和方法，其控制具有可变流体压力和可变串联流动阻力的流速。
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公开(公告)号：US20090131863A1
公开(公告)日：2009-05-21
申请号：US12280869
申请日：2007-01-23
CPC分类号： G01F22/02 , A61M5/1483 , A61M5/16804 , A61M5/16886 , A61M2205/3306
摘要： A system and method for measuring fluid volume and changes in fluid volume over time, using a simple, low cost architecture is described.
摘要翻译： 描述了使用简单的低成本架构来测量流体体积和流体体积随时间变化的系统和方法。
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公开(公告)号：US20100063765A1
公开(公告)日：2010-03-11
申请号：US12280894
申请日：2007-02-27
IPC分类号： G01F25/00
CPC分类号： G01F22/02 , A61M5/1483 , A61M5/16804 , A61M5/16886 , A61M2205/3306
摘要： An infusion pump and method are provided which combine flow rate measurements calibrated by accurate volume measurements over time.
摘要翻译： 提供一种输液泵和方法，其组合通过随时间精确的体积测量校准的流速测量。
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4.发明授权Flow control system and method with variable pressure and variable resistance 有权流量控制系统和方法，可变压力和可变电阻公开(公告)号：US07654982B2
公开(公告)日：2010-02-02
申请号：US12280924
申请日：2007-02-27
IPC分类号： A61B17/50
CPC分类号： G01F22/02 , A61M5/1483 , A61M5/16804 , A61M5/16886 , A61M2205/3306
摘要： An infusion pump and method are provided which control flow rates with variable fluid pressure and variable series flow resistance.
摘要翻译： 提供一种输液泵和方法，其控制具有可变流体压力和可变串联流动阻力的流速。
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公开(公告)号：US07847276B2
公开(公告)日：2010-12-07
申请号：US12048612
申请日：2008-03-14
CPC分类号： G01F1/28 , A61M5/16886 , A61M2205/3306
摘要： A fluid flow control system using flow rates to extract additional information from an in-line flow sensor. The system provides the ability to determine a position of a movable flow sensor element of a flow sensor by illuminating a photosensitive pixel array with a light source to create a first set of pixel intensity values introducing an abrupt change to the fluid driving pressure, illuminating the photosensitive pixel array with a light source to create a second set of pixel intensity values, and calculating the difference between the first and second sets of pixel intensity values as a function of pixel position.
摘要翻译： 流体流量控制系统，使用流速从串联流量传感器中提取附加信息。 该系统提供通过用光源照射光敏像素阵列来确定流量传感器的可移动流量传感器元件的位置的能力，以产生引入对流体驱动压力的突然变化的第一组像素强度值，照亮 具有光源的光敏像素阵列以产生第二组像素强度值，以及计算第一和第二组像素强度值之间的差作为像素位置的函数。
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公开(公告)号：US20110046900A1
公开(公告)日：2011-02-24
申请号：US12940146
申请日：2010-11-05
IPC分类号： G01F1/34
CPC分类号： G01F1/28 , A61M5/16886 , A61M2205/3306
摘要： A fluid flow control system using flow rate changes to extract additional information from an in-line flow sensor. The system provides the ability to determine a position of a movable flow sensor element of a flow sensor by illuminating a photosensitive pixel array with a light source to create a first set of pixel intensity values, introducing an abrupt change to the fluid driving pressure, illuminating the photosensitive pixel array with a light source to create a second set of pixel intensity values, and calculating the difference between the first and second sets of pixel intensity values as a function of pixel position.
摘要翻译： 使用流量变化的流体流量控制系统从在线流量传感器提取附加信息。 该系统提供通过用光源照射光敏像素阵列来确定流量传感器的可移动流量传感器元件的位置的能力，以产生第一组像素强度值，引入对流体驱动压力的突然变化，照亮 所述光敏像素阵列具有光源以产生第二组像素强度值，以及计算所述第一和第二组像素强度值之间的差作为像素位置的函数。
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公开(公告)号：US08067760B2
公开(公告)日：2011-11-29
申请号：US12940146
申请日：2010-11-05
CPC分类号： G01F1/28 , A61M5/16886 , A61M2205/3306
摘要： A fluid flow control system using flow rate changes to extract additional information from an in-line flow sensor. The system provides the ability to determine a position of a movable flow sensor element of a flow sensor by illuminating a photosensitive pixel array with a light source to create a first set of pixel intensity values introducing an abrupt change to the fluid driving pressure, illuminating the photosensitive pixel array with a light source to create a second set of pixel intensity values, and calculating the difference between the first and second sets of pixel intensity values as a function of pixel position.
摘要翻译： 使用流量变化的流体流量控制系统从在线流量传感器提取附加信息。 该系统提供通过用光源照射光敏像素阵列来确定流量传感器的可移动流量传感器元件的位置的能力，以产生引入对流体驱动压力的突然变化的第一组像素强度值，照亮 具有光源的光敏像素阵列以产生第二组像素强度值，以及计算第一和第二组像素强度值之间的差作为像素位置的函数。
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公开(公告)号：US20090234594A1
公开(公告)日：2009-09-17
申请号：US12048612
申请日：2008-03-14
CPC分类号： G01F1/28 , A61M5/16886 , A61M2205/3306
摘要： A method and apparatus are disclosed for using flow rate changes to extract additional information from an in-line flow sensor.
摘要翻译： 公开了一种使用流量变化从一个在线流量传感器提取附加信息的方法和装置。
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公开(公告)号：US20110028937A1
公开(公告)日：2011-02-03
申请号：US12906077
申请日：2010-10-16
IPC分类号： A61M5/168
CPC分类号： A61M5/16813 , A61M5/1415 , A61M5/14224 , A61M5/14593 , A61M5/16809 , A61M5/16827
摘要： A system for controlled delivery of medicinal fluid includes a fluid pathway assembly defining a fluid pathway and including means for calculating a first calculated fluid flow rate using gas laws. The fluid pathway assembly has an inline flow sensor element received within the fluid pathway movable in response to fluid flowing in the fluid pathway. A flow control device is removably attached to the fluid pathway assembly and has a sensor for sensing a position of the inline flow sensor element in the fluid pathway, the position of the inline flow sensor element being representative of a second calculated fluid flow rate. The fluid pathway assembly includes a variable flow resistor adjustable to regulate a rate of fluid flow in the fluid pathway assembly. A drive mechanism attached to the flow control device is operably coupled to the variable flow resistor when the flow control device is attached to the fluid pathway assembly. The variable flow resistor is adjustable by the drive mechanism to achieve a target flow rate when the first calculated flow rate and/or the second calculated flow rate differs from the target flow rate.
摘要翻译： 用于控制输送药液的系统包括限定流体通路的流体通路组件，并且包括用于使用气体定律计算第一计算流体流量的装置。 流体通道组件具有接收在流体通道内的在线流量传感器元件，其可响应于在流体通路中流动的流体而移动。 流量控制装置可移除地附接到流体通路组件，并且具有用于感测流体通道中的在线流量传感器元件的位置的传感器，该在线流量传感器元件的位置代表第二计算的流体流速。 流体通道组件包括可调节流量的可变流量电阻器，以调节流体通道组件中的流体流速。 当流量控制装置附接到流体通路组件时，连接到流量控制装置的驱动机构可操作地耦合到可变流量电阻器。 当第一计算流量和/或第二计算流量与目标流量不同时，可变流量电阻器可由驱动机构调节以实现目标流量。
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公开(公告)号：US07232430B2
公开(公告)日：2007-06-19
申请号：US09899300
申请日：2001-07-06
IPC分类号： A61M31/00
CPC分类号： A61M5/14224 , A61M5/16831 , A61M2205/12 , A61M2205/128 , A61M2205/3355 , A61M2205/3379
摘要： Methods and apparatus for air content and pressure measurement of sample fluid, especially sample fluid in association with an infusion pump. Volume change in a chamber as the chamber transitions between negative and positive pressure relates to the air content in the chamber. In particular, in an infusion pump, the volume change of infusion fluid as it transitions between being under negative pressure and positive pressure within a cassette central chamber, e.g., pumping chamber, relates to the air content in the infusion fluid. The outlet pressure of the cassette central chamber, e.g., blood pressure, can be monitored based on the cassette central chamber pressure.
摘要翻译： 用于与输液泵相关联的样品流体，特别是样品流体的空气含量和压力测量的方法和装置。 室内的容积变化随着腔室在负压正压之间的转变与室内的空气含量有关。 特别地，在输液泵中，输液在其在中央室（例如泵送室）内的负压和正压之间转变时的体积变化涉及输液中的空气含量。 可以基于盒中心室压力来监视盒中央室的出口压力，例如血压。
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