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41. 发明授权

US06554806B2 Burette safety valve 有权
标题翻译：滴定管安全阀
公开(公告)号：US06554806B2
公开(公告)日：2003-04-29
申请号：US09777788
申请日：2001-02-05
申请人： Robert D. Butterfield , Emmet B. Anderson
发明人： Robert D. Butterfield , Emmet B. Anderson
IPC分类号： A01M514
CPC分类号： A61M5/1412 , A61M39/285
摘要： A system for controlling fluid flow through multiple conduits for use in a fluid administration device. The system includes a housing, a cam, and a control element used to move the cam to selectively occlude the conduits. When used with a medical burette, the cam is located between the vent and supply conduits and rotates to alternately occlude one or the other conduits or to leave both conduits patent. Depending on the rotational position of the cam, the continuous flow mode, the intermittent flow mode, and the priming mode are all obtained with a single control lever. The housing secures the conduits in predetermined, fixed positions both above and below the contact location of the cam to the conduit. A positive locking device is included to assist in locating the cam in the desired position. Clear visual indicators are included on the housing for viewing the present flow operating state.
摘要翻译：用于控制通过多个管道的流体流动用于流体管理装置的系统。该系统包括壳体，凸轮和用于移动凸轮以选择性地闭塞导管的控制元件。当与医用滴定管一起使用时，凸轮位于通气和供应管道之间，并且旋转以交替地封闭一个或另一个管道或者留下两个管道专利。根据凸轮的旋转位置，连续流动模式，间歇流动模式和启动模式都可以通过单个控制杆获得。壳体将管道固定在凸轮的接触位置上方和下方的预定的固定位置。包括一个积极的锁定装置以帮助将凸轮定位在期望的位置。外壳上包含清晰的视觉指示器，用于查看当前的流动状态。

42. 发明授权

US06394771B2 System and method for increased flow uniformity 有权
标题翻译：增加流动均匀性的系统和方法
公开(公告)号：US06394771B2
公开(公告)日：2002-05-28
申请号：US09794539
申请日：2001-02-26
申请人： Robert D. Butterfield
发明人： Robert D. Butterfield
IPC分类号： F04B4308
CPC分类号： A61M5/16831 , F04B43/082 , F04B2203/0213
摘要： A system for increasing the volumetric flow uniformity of fluid pumped through a conduit by an infusion pump. A pumping mechanism operates in identifiable step movements that are broken down into microstep movements that are then grouped into packets. The pumping mechanism controls the period of each microstep, so that the sum of the microstep periods in a packet is essentially equal to the packet period, with little or no waiting time on the motor. The motor preferably begins moving the assigned microsteps in each packet immediately upon the beginning of the time period, but controls the period of the microsteps for that packet.
摘要翻译：用于增加通过输液泵泵送通过管道的流体的体积流量均匀性的系统。泵送机构在可识别的步进运动中运行，其被分解成微步运动，然后将其分组成分组。泵送机构控制每个微步的周期，使得分组中的微步周期的总和基本上等于分组周期，马达上几乎没有或没有等待时间。马达优选地在时间段开始时立即开始移动每个分组中的分配的微步，但是控制该分组的微步的周期。

43. 发明授权

US6158965A Fluid flow resistance monitoring system 失效
公开(公告)号：US6158965A
公开(公告)日：2000-12-12
申请号：US688673
申请日：1996-07-30
申请人： Robert D. Butterfield , Allen B. Farquhar
发明人： Robert D. Butterfield , Allen B. Farquhar
IPC分类号： A61M5/142 , A61M5/168 , F04B49/06
CPC分类号： A61M5/16859
摘要： Flow parameters in a fluid delivery assembly are determined by monitoring pressure responses and processing those responses along with information regarding the fluid flow. In one aspect, a processor controls the pump to pump flow quantities in accordance with a pseudorandom code. Portions of the resulting pressure signal sensed at the conduit is averaged, and the averaged values are then decoded in accordance with the pseudorandom code. An estimate of the equilibrium pressure is generated from the decoded average pressure values, while a summation of the pressure samples is generated from the undecoded pressure signals. The resistance to fluid flow of the system is determined from the estimated equilibrium pressure and pressure summation. For low flow rates, a processor controls the pump to pump fluid in a series of fluid boluses, with each fluid bolus delivered in the beginning of a separate timeslot. The equilibrium pressure is measured at the end of each timeslot, and a summation of the pressure samples is generated from the pressure signals. For high flow rates, the pump is controlled to vary the flow rate and the change in pressure is divided by the change in flow to directly determine the resistance. A resistance display continuously displays the resistance of the system. The pseudorandom coding and decoding can be used to filter out pressure-response crosstalk caused by multiple fluid infusion segments feeding into a common line.

44. 发明授权

US5803917A Fluid flow resistance monitoring system 失效
标题翻译：流体阻力监测系统
公开(公告)号：US5803917A
公开(公告)日：1998-09-08
申请号：US688698
申请日：1996-07-30
申请人： Robert D. Butterfield , Allen Farquhar
发明人： Robert D. Butterfield , Allen Farquhar
IPC分类号： A61M5/00 , A61M5/142 , A61M5/168 , A61M31/00
CPC分类号： A61M5/16859
摘要： Flow parameters in a fluid delivery assembly are determined by monitoring pressure responses and processing those responses along with information regarding the fluid flow. In one aspect, a processor controls the pump to pump flow quantities in accordance with a pseudorandom code. Portions of the resulting pressure signal sensed are then decoded in accordance with the pseudorandom code. An estimate of the equilibrium pressure is generated from the decoded pressure values, while a summation of the pressure samples is generated from the undecoded pressure signals. The resistance to fluid flow of the system is determined from the estimated equilibrium pressure and pressure summation. For low flow rates, a processor controls the pump to pump fluid in a series of fluid boluses, with each fluid bolus delivered in the beginning of a separate timeslot. The equilibrium pressure is measured at the end of each timeslot, and a summation of the pressure samples is generated from the pressure signals. For high flow rates, the pump is controlled to vary the flow rate and the change in pressure is divided by the change in flow to directly determine the resistance. A resistance display continuously displays the resistance of the system. The pseudorandom coding and decoding can be used to filter out pressure-response crosstalk caused by multiple fluid infusion segments feeding into a common line.
摘要翻译：流体输送组件中的流量参数通过监测压力响应并且处理这些响应以及关于流体流动的信息来确定。在一个方面，处理器控制泵根据伪随机码来泵送流量。然后根据伪随机码解码所感测的所得压力信号的部分。从解码的压力值产生平衡压力的估计，而从未解码的压力信号产生压力样本的总和。根据估计的平衡压力和压力求和确定系统对流体流动的阻力。对于低流量，处理器控制泵以一系列流体喷射泵送流体，每个流体推注在单独的时隙开始时传送。在每个时隙的末端测量平衡压力，并从压力信号产生压力样本的总和。对于高流量，泵被控制以改变流量，并且压力变化除以流量的变化以直接确定阻力。电阻显示连续显示系统的电阻。伪随机编码和解码可用于滤除由多个流体输注段馈送到公共线中引起的压力 - 响应串扰。

45. 发明授权

US5605156A Flexible diaphragm tonometer 失效
标题翻译：柔性隔膜眼压计
公开(公告)号：US5605156A
公开(公告)日：1997-02-25
申请号：US442033
申请日：1995-05-16
申请人： Gary M. Drzewiecki , Robert D. Butterfield
发明人： Gary M. Drzewiecki , Robert D. Butterfield
IPC分类号： A61B5/0245 , A61B5/022 , A61B5/021
CPC分类号： A61B5/02007 , A61B5/02233
摘要： A pressure waveform monitor for non-invasively monitoring the pressure waveform inside a vessel, such as an artery, includes a flexible diaphragm extended across an opening of a container containing a fluid. The flexible diaphragm is placed against tissue surrounding an artery such that arterial pressure causes a deflection in the diaphragm. A deflection in the diaphragm causes the fluid to be redistributed throughout the container which is effectively divided into an array of volume compartments. The relative volume distribution is determined through impedance plethysmography. The diaphragm is maintained in a calibrated position by maintaining the array of volume compartments at relatively unchanged volumes. When the relative volumes remain essentially unchanged, calibrated tonometry is possible. The pressure within the container is then used to determine the pulse waveform and the pressure within the artery.
摘要翻译：用于非侵入性地监测诸如动脉的血管内的压力波形的压力波形监视器包括延伸穿过容纳流体的容器的开口的柔性隔膜。将柔性隔膜放置在围绕动脉的组织上，使得动脉压力导致隔膜中的偏转。隔膜中的偏转导致流体在整个容器中重新分布，该容器有效地分成容积隔室阵列。相对体积分布通过阻抗体积描记法确定。通过将体积隔室的阵列保持在相对不变的体积，将隔膜保持在校准位置。当相对体积基本保持不变时，校准的眼压测量是可能的。然后使用容器内的压力来确定脉搏波形和动脉内的压力。

46. 发明授权

US5263484A Method of determining which portion of a stress sensor is best positioned for use in determining intra-arterial blood pressure 失效
标题翻译：确定应力传感器的哪个部分最佳定位以用于确定动脉内血压的方法
公开(公告)号：US5263484A
公开(公告)日：1993-11-23
申请号：US835634
申请日：1992-02-13
申请人： Stephen A. Martin , Robert D. Butterfield
发明人： Stephen A. Martin , Robert D. Butterfield
IPC分类号： A61B5/022 , A61B5/021 , A61B5/02
CPC分类号： A61B5/021
摘要： A method, for use in a non-invasive blood pressure monitoring system, of determining which portion of a stress sensitive element of a tissue stress sensor is best located for detecting the stress of tissue overlying an artery of interest. The tissue stress sensor is placed in communication with tissue overlying the artery of interest and a plurality of electrical signals are obtained therefrom representing stress data across the length of the stress sensitive element. Each electrical signal represents stress datum communicated to a predetermined portion of the stress sensitive element. From the stress datum, a centroid of energy is computed and the centroid of energy is used to determine which portion of the stress sensitive element is best located for determining the blood pressure within the artery of interest. A second method is disclosed which uses the centroid of a tissue foundation flexibility function to determine the best location along the stress sensitive element for determining blood pressure.
摘要翻译：一种用于非侵入式血压监测系统的方法，用于确定组织应力传感器的应力敏感元件的哪个部分最适合用于检测覆盖在感兴趣动脉上的组织的应力。将组织应力传感器置于与感兴趣的动脉相邻的组织的连通中，并且获得多个电信号，表示跨过应力敏感元件长度的应力数据。每个电信号表示传递到应力敏感元件的预定部分的应力基准。从应力数据中，计算能量的质心，并且使用能量的质心来确定应力敏感元件的哪个部分最适合于确定感兴趣动脉内的血压。公开了使用组织基础柔性功能的质心来确定沿应力敏感元件的最佳位置以确定血压的第二种方法。

47. 发明授权

US09514279B2 Model-based infusion site monitor 有权
标题翻译：基于模型的输液现场监护仪
公开(公告)号：US09514279B2
公开(公告)日：2016-12-06
申请号：US13319081
申请日：2010-05-05
申请人： Robert D. Butterfield , Brian Stock , Melissa Strait , Harry Dudley , Stephen Rosenthal
发明人： Robert D. Butterfield , Brian Stock , Melissa Strait , Harry Dudley , Stephen Rosenthal
IPC分类号： A61B5/03 , G06F19/00 , A61M5/168
CPC分类号： A61M5/14 , A61M5/142 , A61M5/16831 , A61M5/16836 , A61M5/16854 , A61M5/16859 , A61M2205/18 , A61M2205/3334 , A61M2205/3576 , A61M2205/502 , A61M2205/52 , G06F19/00 , G06F19/3468 , G16H50/50 , Y02A90/22 , Y02A90/26
摘要： A medication delivery monitoring device is disclosed. The device includes a user interface configured to receive input information, and a sensor configured to measure a plurality of fluid state parameters of a fluid delivery channel through which the medication is delivered by a vascular access device (VAD) to an infusion site region of the patient. The device also includes a processor configured to determine a state of the infusion site region based on the plurality of measured fluid state parameters and the input information, and an output device configured to provide a communication regarding the state of the infusion site region. Methods and computer-readable mediums for monitoring medication delivery are also disclosed.
摘要翻译：公开了一种药物输送监测装置。该装置包括被配置为接收输入信息的用户界面，以及被配置为测量流体输送通道的多个流体状态参数的传感器，通过该流体输送通道将药物由血管通路装置（VAD）输送到该输送通道的输注部位区域患者。该装置还包括配置成基于多个测量的流体状态参数和输入信息来确定输注部位区域的状态的处理器，以及被配置为提供关于输注部位区域的状态的通信的输出装置。还公开了用于监测药物递送的方法和计算机可读介质。

48. 发明授权

US08777894B2 Infusion data communication system 有权
标题翻译：输液数据通信系统
公开(公告)号：US08777894B2
公开(公告)日：2014-07-15
申请号：US13291008
申请日：2011-11-07
申请人： Robert D. Butterfield , David L. Schlotterbeck
发明人： Robert D. Butterfield , David L. Schlotterbeck
IPC分类号： A61M31/00
CPC分类号： A61M5/5086 , A61M5/142 , A61M5/172 , A61M2005/14208 , A61M2205/3569 , A61M2205/3592 , A61M2205/6018 , A61M2205/6054 , G06F19/00 , G06F19/326 , G06F19/3468 , G06Q50/22 , Y02A90/22 , Y02A90/26
摘要： An infusion data communication system provides a communication link among a fluid container, an infusion pump, and a patient through which identification data may be communicated. Data devices are located at the fluid container and the patient and conduct low frequency RF energy at a low power level containing the data into the medical fluid. The data-laden RF energy propagates through the medication fluid to data readers at the infusion pump which receives the RF energy and reads the data. A comparison is made to verify that the right medication is mounted to the infusion pump for administration to the right patient. RFID devices may be used for the data devices and readers. Pump programming data may also be propagated to the infusion pump from the container RFID tag. The RFID device at the patient may be writable and may be used to store a patient MAR.
摘要翻译：输注数据通信系统在流体容器，输液泵和患者之间提供通信链路，通过该通信链路可以传达识别数据。数据设备位于流体容器和患者身上，并将含有数据的低功率水平的低频RF能量传送到医用流体中。数据载入的RF能量通过药物流体传播到输注泵的数据读取器，其接收RF能量并读取数据。进行比较，以验证正确的药物是否安装到输液泵，以便管理给合适的患者。 RFID设备可以用于数据设备和读取器。泵编程数据也可以从容器RFID标签传播到输注泵。患者身上的RFID设备可以是可写的，并且可以用于存储患者MAR。

49. 发明授权

US08771228B2 IV pump adapted for generic tubing 有权
标题翻译： IV泵适用于通用管道
公开(公告)号：US08771228B2
公开(公告)日：2014-07-08
申请号：US12986092
申请日：2011-01-06
申请人： Robert D. Butterfield
发明人： Robert D. Butterfield
IPC分类号： A61M5/145
CPC分类号： A61M5/14212 , A61M2205/332 , A61M2205/50 , A61M2205/52
摘要： A system and method of accurately pumping a fluid using tubing of variable inner diameter and material is disclosed. The disclosed pump comprises a pumping mechanism configured to compress and release a portion of a flexible tube to cause fluid to flow along the flexible tube, a gauging apparatus, and a vacuum apparatus. The gauging apparatus is configured to determine the inner diameter of the flexible tube, which value is used in calibrating the pumping rate of the pump. The vacuum apparatus is configured to reduce the ambient pressure in a volume surrounding the portion of the flexible tube, thereby causing the flexible tube to fully expand to its original outside diameter when the flexible tube is released by the pumping mechanism.
摘要翻译：公开了使用可变内径和材料的管道精确地泵送流体的系统和方法。所公开的泵包括泵送机构，其构造成压缩和释放柔性管的一部分，以使流体沿着柔性管，测量装置和真空装置流动。测量装置被配置为确定柔性管的内径，该值用于校准泵的泵送速率。真空装置被配置为降低围绕柔性管部分的体积的环境压力，由此当柔性管被泵送机构释放时，柔性管能够完全膨胀到其原始的外径。

50. 发明授权

US08585649B2 Tubular pumping element 有权
标题翻译：管状泵送元件
公开(公告)号：US08585649B2
公开(公告)日：2013-11-19
申请号：US12970809
申请日：2010-12-16
申请人： Robert D. Butterfield
发明人： Robert D. Butterfield
IPC分类号： A61M1/00
CPC分类号： F04B43/10 , A61M5/142 , A61M5/145 , F04B43/08 , F04B43/12
摘要： A tubular pumping element for pumping a liquid is disclosed. The tubular pumping element includes an outer shell that has a bore with an inlet and an outlet at opposite ends of the bore. There is a flow path for the liquid from the inlet through the bore to the outlet. A support element is located within the bore of the outer shell. An elastic sleeve is located over the support element and has a plurality of expandable portions. The support element includes a plurality of fluid passages each coupled to a respective port on the surface of the support element under one of the plurality of expandable portions of the elastic sleeve. Introduction of a driving fluid into one of the fluid passages causes the expandable portion of the elastic sleeve that is proximate to the respective port to expand.
摘要翻译：公开了一种用于泵送液体的管状泵送元件。管状泵送元件包括外壳，该外壳具有在孔的相对端处具有入口和出口的孔。液体从入口通过孔到出口有一个流动路径。支撑元件位于外壳的孔内。弹性套筒位于支撑元件上方并且具有多个可扩张部分。支撑元件包括多个流体通道，每个流体通道在弹性套筒的多个可扩张部分之一下方联接到支撑元件表面上的相应端口。将驱动流体引入其中一个流体通道使弹性套筒的可扩张部分靠近相应的端口膨胀。

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