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公开(公告)号：US06406276B1
公开(公告)日：2002-06-18
申请号：US07855176
申请日：1992-03-20
IPC分类号： F04B4306
CPC分类号： B67D7/0255 , A61M5/152 , A61M5/162 , A61M5/16809 , A61M5/16813 , A61M5/16859 , A61M5/36 , A61M5/365 , A61M39/22 , A61M39/24 , A61M39/26 , A61M39/28 , A61M2005/1403 , A61M2205/12 , A61M2205/15 , F04B43/043 , F16K31/005 , G01F1/34 , G01F1/66 , G01F17/00 , G01P13/0066 , G05D16/0641 , G05D16/0647
摘要： The invention provides a system for dispensing fluid at relatively constant pressure. In a first embodiment, the invention dispenses a fluid from a chamber of varying dimension defined by a pre-tensioned resilient membrane. In a second embodiment, the invention dispenses a fluid from a chamber defined by a dispensing membrane, which is substantially surrounded by another fluid contained within a pressure chamber of varying dimension defined by a pre-tensioned resilient membrane. In a third embodiment, the invention dispenses multiple fluids, a first fluid from a first dispensing chamber of varying dimension defined by a pre-tensioned resilient membrane, and a second fluid from a dispensing chamber of varying dimension defined by a dispensing membrane substantially surrounded by the first fluid. In a fourth embodiment the invention dispenses multiple fluids from at least two dispensing chambers of varying dimension each substantially surrounded by the pressure fluid contained within a pressure chamber of varying dimension defined by a pre-tensioned resilient membrane. In a preferred embodiment, the resilient membrane is pre-tensioned beyond the point at which, as fluid enters the volume contained by the membrane and the volume increases, the first derivative of pressure over volume becomes zero for the first time.
摘要翻译： 本发明提供一种用于以相对恒定的压力分配流体的系统。 在第一实施例中，本发明从由预张紧的弹性膜限定的变化尺寸的室中分配流体。 在第二实施例中，本发明从由分配膜限定的室中分配流体，分配膜基本上被包含在由预张紧的弹性膜限定的变化尺寸的压力室内的另一流体包围。 在第三实施例中，本发明分配多个流体，来自由预张紧的弹性膜限定的变化尺寸的第一分配室的第一流体和由分配室限定的变化尺寸的分配室的第二流体，其基本上由 第一流体。 在第四实施例中，本发明从至少两个不同维度的分配室分配多个流体，每个分配腔基本上由包含在由预张紧弹性膜限定的变化尺寸的压力室内的压力流体围绕。 在优选实施例中，弹性膜预张紧超过了当流体进入膜所包含的体积并且体积增加时，压力超过体积的一阶导数首次为零。
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公开(公告)号：US06520941B1
公开(公告)日：2003-02-18
申请号：US09415961
申请日：1999-10-12
申请人： Kevin Durand , Izrail Tsals , Craig Brodeur
发明人： Kevin Durand , Izrail Tsals , Craig Brodeur
IPC分类号： A61M514
CPC分类号： A61M5/2429 , A61M5/283 , A61M2005/3123
摘要： A stopper for use in preventing any volume of gas from escaping from a drug container when used in connection therewith. The stopper has a body having a perimeter for slidable engagement with the interior of a drug receptacle; an outer surface; and an inner surface facing the bottom of the drug receptacle, the inner surface shaped so as to trap any volume of gas located within the drug receptacle when the body is slidably engaged therein. The invention is further directed to a drug container having a hollow body for holding a liquid. The body has an open end and a closed end. The container also has a stopper slidably received in the hollow body, and a feature for entrapping any volume of gas within the container.
摘要翻译： 用于防止任何体积的气体在与药物容器相连用时从药物容器逸出的塞子。 止动器具有具有用于与药物容器的内部可滑动接合的周边的主体; 外表面 以及面向药物容器的底部的内表面，内表面成形为当主体可滑动地接合在其中时捕获位于药物容器内的任何体积的气体。 本发明进一步涉及具有用于保持液体的中空体的药物容器。 身体有一个开放的一端和封闭的一端。 容器还具有可滑动地容纳在中空体中的止动件，以及用于将任何体积的气体捕获在容器内的特征。
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公开(公告)号：US20120150143A1
公开(公告)日：2012-06-14
申请号：US13373781
申请日：2011-11-30
申请人： Kevin Durand , Charles Grinnell
发明人： Kevin Durand , Charles Grinnell
IPC分类号： A61M5/168
CPC分类号： A61M5/158 , A61M2005/1404 , A61M2005/1588 , A61M2205/18 , A61M2205/52 , A61M2205/583
摘要： A system for automatically monitoring an infusion in a patient receiving an infusion from a fluid source, the system including: an infusion monitoring device comprising: a fluid valve, disposed in a fluid connection between the fluid source and the patient, and operable for preventing or allowing the flow of fluid from the fluid source to the patient; a variable volume chamber, fluidly coupled between the fluid valve and the patient, for allowing the creation of a pressure differential between the variable volume chamber and the patient; and a fluid inspection window, disposed in the fluid connection between the variable volume chamber and the patient, for allowing a view of fluid drawn from the patient into the infusion monitoring device when the fluid valve is closed and the variable volume chamber creates a negative pressure differential between the variable volume chamber and the patient.
摘要翻译： 一种用于在从液体源接收输液的患者中自动监测输液的系统，所述系统包括：输液监测装置，包括：流体阀，设置在所述流体源和患者之间的流体连接中，并且可操作以防止或 允许流体从流体源流向患者; 流体耦合在流体阀和患者之间的可变体积腔，用于允许在可变体积腔和患者之间产生压力差; 以及设置在可变体积腔室和患者之间的流体连接中的流体检查窗口，用于当流体阀关闭时允许将从患者抽出的流体观察到输注监测装置，并且可变容积室产生负压 可变容积室和患者之间的差异。
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公开(公告)号：US20060276748A1
公开(公告)日：2006-12-07
申请号：US11436110
申请日：2006-05-17
申请人： Kevin Durand , Charles Grinnell
发明人： Kevin Durand , Charles Grinnell
IPC分类号： A61M37/00
CPC分类号： A61M5/158 , A61M2005/1404 , A61M2005/1588 , A61M2205/18 , A61M2205/52 , A61M2205/583
摘要： The present invention provides a manual or automated device, system, and method for the monitoring and administration of fluids into a patient. The invention determines if a proper infusion site is being maintained by stopping the infusion fluid, creating a negative pressure differential between the device and the patient, and observing either manually or automatically the fluid being drawn into the device. The presence or absence of blood in the device is an indication of a failed or faulty infusion site depending on the condition being monitored. The system may also be used to inspect the patient's blood for certain characteristics, and to monitor the characteristics of the infusate being delivered to the patient. The invention may be used for either intermittent or continuous injection and may be used separately of other patient care devices, or integrated into or with them.
摘要翻译： 本发明提供了用于监测和管理流体进入患者的手动或自动化装置，系统和方法。 本发明通过停止输液，确定装置与患者之间产生负压差，并手动或自动地观察被吸入装置中的流体，来确定是否维持正确的输注部位。 设备中存在或不存在血液是指根据正在监测的状况的失败或错误的输注部位的指示。 该系统还可以用于检查患者的血液的某些特征，并且监测输送给患者的输注物的特征。 本发明可以用于间歇或连续注射，并且可以与其他患者护理装置分开使用，或者与其集成或连接。
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