会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • SYSTEM AND METHOD FOR IMPROVED FLOW UNIFORMITY IN A PERISTALTIC PUMP MECHANISM
    • 用于改进流体泵浦机构中的流量均匀性的系统和方法
    • US20130149172A1
    • 2013-06-13
    • US13315196
    • 2011-12-08
    • Robert D. ButterfieldDaniel Abal
    • Robert D. ButterfieldDaniel Abal
    • F04B49/06F04B43/08
    • F04B49/08A61M5/14228A61M2206/22F04B9/042F04B43/0045F04B43/082F04B43/1223F04B43/14F04B45/08F04B49/06
    • A pumping mechanism is disclosed that includes a plurality of peristaltic pumping actuators configured to selectively and sequentially compress adjacent portions of a first portion of an at least partially compressible pumping element having an inlet that is upstream of an outlet. The plurality of pumping actuators are further configured to reciprocate at a common drive frequency with a first phase offset between each adjacent pair of pumping actuators. The pumping mechanism also includes at least one compensation actuator arranged to selectively compress a second portion of the at least partially compressible pumping element that is disposed between the first portion and the outlet. The at least one compensation actuator is configured to reciprocate at an optimal displacement and at a modulation frequency that is an integer multiple of the fundamental drive frequency and with a second phase offset between the at least one compensation actuator and the adjacent pumping actuator.
    • 公开了一种泵送机构,其包括多个蠕动式泵送致动器,其构造成选择性地并顺序地压缩具有在出口上游的入口的至少部分可压缩的泵送元件的第一部分的相邻部分。 多个泵送致动器进一步构造成在共同的驱动频率下以每个相邻的泵送致动器对之间的第一相位偏移往复运动。 泵送机构还包括至少一个补偿致动器,其布置成选择性地压缩设置在第一部分和出口之间的至少部分可压缩的泵送元件的第二部分。 所述至少一个补偿致动器被配置为以最佳位移和调制频率往复运动,所述调制频率是所述基本驱动频率的整数倍,并且在所述至少一个补偿致动器和所述相邻泵送致动器之间具有第二相位偏移。
    • 7. 发明授权
    • Apparatus and method for air-in-line detection
    • 空中在线检测装置及方法
    • US07141037B2
    • 2006-11-28
    • US10656424
    • 2003-09-05
    • Robert D. ButterfieldAllen B. Farquhar
    • Robert D. ButterfieldAllen B. Farquhar
    • A61M31/00A61M1/00
    • G01N29/38A61M5/14228A61M5/365G01N29/032G01N2291/02433Y10S128/13
    • The concentration of air in a fluid delivery line is determined by monitoring output signals corresponding to the amount of air detected in the fluid and processing those signals along with information as to the time or total volume of fluid dispensed since each signal was produced. The processor determines an air concentration value based on the received signal values, with the air concentration value determined by giving greater weight to more recent signal values. Where the air concentration value exceeds a predetermined value, an alarm signal may be activated or fluid delivery may be stopped. The processor also may determine a secondary air concentration value, which may be determined from the raw signal values instead of the weighted signal values. Where the secondary air concentration value exceeds a second predetermined threshold, an alarm signal may be activated or fluid delivery may be stopped.
    • 流体输送管线中的空气浓度通过监测对应于在流体中检测到的空气量的输出信号并且处理这些信号以及关于由于每个信号产生而分配的流体的时间或总体积的信息来确定。 处理器基于接收到的信号值来确定空气浓度值,其中通过对更近的信号值给予更大的权重来确定空气浓度值。 当空气浓度值超过预定值时,可以启动报警信号或停止流体输送。 处理器还可以确定二次空气浓度值,其可以根据原始信号值而不是加权信号值来确定。 在二次空气浓度值超过第二预定阈值的情况下,可以启动报警信号或者可以停止流体输送。
    • 10. 发明授权
    • Cannula position detection
    • 插管位置检测
    • US5423743A
    • 1995-06-13
    • US123327
    • 1993-09-17
    • Robert D. Butterfield
    • Robert D. Butterfield
    • A61M5/168A61M31/00
    • A61M5/16859Y10S128/13
    • Bidirectional flow patterns are induced in a fluid supply line and the reverse flow resistance and the forward flow resistance are measured and compared. A measure of the resistance to flow is made by normalizing a sum of the entire pressure response about a pressure baseline according to the volume of fluid in the bidirectional flow pattern. In the event that the cannula is positioned near or against the vessel wall, the resulting relatively large negative pressure response can indicate the positional irregularity. In one embodiment, a time period of zero flow is included between the positive and negative flow volumes to permit the system to stabilize.
    • 在流体供应管线中引起双向流动模式,并测量和比较反向流动阻力和正向流动阻力。 通过根据双向流动模式中的流体体积归一化关于压力基线的整个压力响应的总和来进行流动阻力的度量。 在套管位于血管壁附近或靠近血管壁的情况下,所产生的相对较大的负压反应可以指示位置不规则。 在一个实施例中,零流量的时间段包括在正流量和负流量之间以允许系统稳定。