AIR DETECTION SYSTEM AND METHOD FOR DETECTING AIR IN A PUMP OF AN INFUSION SYSTEM
    2.
    发明申请
    AIR DETECTION SYSTEM AND METHOD FOR DETECTING AIR IN A PUMP OF AN INFUSION SYSTEM 有权
    用于检测输液系统中的空气的空气检测系统和方法

    公开(公告)号:US20130261993A1

    公开(公告)日:2013-10-03

    申请号:US13851207

    申请日:2013-03-27

    IPC分类号: G01F1/74

    摘要: Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.

    摘要翻译: 公开了用于检测输注系统的腔室中的空气的各种系统和方法。 在一个实施例中,基于使用用于事件检测的导数尖峰对柱塞施加的平均力的变化,确定空气被容纳在腔室中,并且系统地减小平均力以确认 更改。 在另一个实施例中,当当前力分布和基线力分布之间的差异跨越阈值时,确定腔室包含空气。 在另外的实施例中,基于所提取的力分布特征将力分布分类为空气分布或液体力分布。

    Intravenous Flow Rate Controller
    4.
    发明申请
    Intravenous Flow Rate Controller 有权
    静脉流量控制器

    公开(公告)号:US20130085443A1

    公开(公告)日:2013-04-04

    申请号:US13631339

    申请日:2012-09-28

    IPC分类号: A61M39/22

    摘要: Tilting of a drip chamber from its vertical axis during fluid administration can have negative effects upon the accuracy of systems configured for drop counting and/or for volumetric measurement of individual drops passing through the drip chamber. To address these negative effects, in accordance with one embodiment of the present disclosure, a fluid delivery system engages in a fluid control process that comprises determining an error parameter, based at least in part on a tilt signal, generating an error condition, and either holding the fluid flow at the present rate or stopping the flow.

    摘要翻译: 在流体给药期间,从垂直轴倾斜滴液室可能会对配置用于滴定计量的系统的精确度和/或通过滴注室的各个液滴的体积测量产生负面影响。 为了解决这些负面影响,根据本公开的一个实施例,流体输送系统参与流体控制过程,流体控制过程包括至少部分地基于倾斜信号确定误差参数,产生误差状况,以及 以目前的速度保持流体流动或停止流动。

    Method for determining an unknown absorbed dose of radiation using
optically stimulated luminescence
    5.
    发明授权
    Method for determining an unknown absorbed dose of radiation using optically stimulated luminescence 失效
    使用光学刺激发光来确定辐射的未知吸收剂量的方法

    公开(公告)号:US5892234A

    公开(公告)日:1999-04-06

    申请号:US710780

    申请日:1996-09-20

    IPC分类号: G01T1/10 G01T1/105 G01N21/64

    CPC分类号: G01T1/10 G01T1/105

    摘要: A bimodal method for determining an unknown absorbed dose of radiation. An irradiated material is illuminated with ultraviolet or visible light and the luminescence which is emitted from the material is detected. The illuminating light is pulsed, with pulse widths varying from 1 ns to 500 ms. The luminescence emission from dosimetric traps is monitored after a delay following the end of the illumination pulse. The integrated luminescence signal is related to the initial absorbed dose of radiation and thus may be used to calculate the unknown absorbed dose after calibration. In a first mode, the material is completely detrapped--that is, all the dosimetric traps are emptied by the illumination beam. In a second mode the number of illumination pulses, each being followed by the time delay and by periods during which the luminescence signal is detected, is selected such that only a portion of the radiation-induced luminescence from the material is extracted.

    摘要翻译: 用于确定未知吸收辐射剂量的双峰方法。 照射的材料用紫外线或可见光照射,并且检测从材料发射的发光。 照明光被脉冲,脉冲宽度从1ns到500ms变化。 在照射脉冲结束后的延迟后监测剂量测定阱的发光。 集成的发光信号与辐射的初始吸收剂量有关,因此可用于计算校准后未知的吸收剂量。 在第一模式中,材料被完全去除,也就是说,所有的剂量捕获器被照明光束排空。 在第二模式中,选择每个跟随着时间延迟的照明脉冲的数量和检测发光信号的周期,使得仅提取来自材料的辐射诱发的发光的一部分。

    Intravenous Flow Rate Controller
    8.
    发明申请
    Intravenous Flow Rate Controller 有权
    静脉流量控制器

    公开(公告)号:US20130083191A1

    公开(公告)日:2013-04-04

    申请号:US13631422

    申请日:2012-09-28

    IPC分类号: H04N7/18

    摘要: Tilting of a drip chamber from its vertical axis during fluid administration can have negative effects upon the accuracy of systems configured for drop counting and/or for volumetric measurement of individual drops passing through the drip chamber. To address these negative effects, in accordance with one embodiment of the present disclosure, a fluid delivery system that measures the flow volume of a fluid delivery system is disclosed, which includes an imaging apparatus that captures a first image of a drip chamber while a drop is falling therein and a second image of the drip chamber with no drop. Portions of each image that are in substantially the same position in each image are subtracted.

    摘要翻译: 在流体给药期间,从垂直轴倾斜滴液室可能会对配置用于滴定计量的系统的精确度和/或通过滴注室的各个液滴的体积测量产生负面影响。 为了解决这些负面影响,根据本公开的一个实施例,公开了一种测量流体输送系统的流量的流体输送系统,其包括捕获滴液室的第一图像的成像装置,同时滴落 在其中落下,滴液室的第二张图像不滴落。 在每个图像中基本上相同位置的每个图像的部分被减去。