公开(公告)号：US11860197B2

公开(公告)日：2024-01-02

申请号：US17529819

申请日：2021-11-18

Applicant: NxStage Medical, Inc.

Inventor： Mark F. Smith

IPC: G01R31/52 ,  G01R15/18 ,  A61M1/36 ,  A61N1/16 ,  G01R19/145

CPC classification number: G01R15/18 ,  A61M1/3669 ,  A61N1/16 ,  G01R19/145 ,  G01R31/52

Abstract: A sensor/transducer for use in reducing leakage current from a patient fluidly connected to a medical device by tubing filled with a conductive fluid (e.g., blood or dialysate (a “fluid line”)) includes a magnetically conductive core with 1) a centrally located support for a coil of fluid line, and 2) coiled electrical conductors located at positions that are spaced from the centrally located support, on opposite sides of the centrally located support. The sensor/transducer can be used to measure leakage current carried by the conductive fluid in the fluid line, or it can be used to induce current in the fluid line in a manner that reduces the leakage current.

公开(公告)号：US20160166757A1

公开(公告)日：2016-06-16

申请号：US14436841

申请日：2013-10-18

Applicant: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.

Inventor： Akihiko KOYAMA ,  Keisho SHINOHARA ,  Junichi INOUE ,  Takashi MORITA

IPC: A61M1/36 ,  G01N27/08

CPC classification number: A61M1/3669 ,  A61M1/3656 ,  A61M5/16836 ,  A61M2005/1588 ,  A61M2205/15 ,  G01M3/16 ,  G01N27/07 ,  G01N27/08

Abstract: Liquid leakage is certainly detected and abnormality in an installation state is detected. A liquid detecting device 10 includes a liquid detection sensor 1 including an insulation sheet 14 exhibiting conductivity in the presence of liquid, electrode members 15 electrically isolated from each other, and a resistance member 18 connected to join the electrode members 15 together. In the liquid detecting device 10, the measurement device 2 measures a value of resistance between the electrode members 15. Based on the value of resistance between the electrode members 15, the liquid detecting device 10 identifies a liquid leakage state in which the insulation sheet 14 exhibits conductivity, a disconnected state in which the electrode members 15 are disconnected from the measurement device 2, and a measurement preparation completed state, and outputs identification information which corresponds to each identified state.

Abstract translation: 肯定检测到液体泄漏，并且检测到安装状态的异常。 液体检测装置10包括液体检测传感器1，液体检测传感器1包括在存在液体的情况下表现出导电性的绝缘片14，彼此电隔离的电极构件15和连接到电极构件15的电阻构件18。 在液体检测装置10中，测量装置2测量电极构件15之间的电阻值。根据电极构件15之间的电阻值，液体检测装置10识别泄漏状态，其中绝缘片14 显示电导率，电极构件15与测量装置2断开的断开状态和测量准备完成状态，并且输出与每个识别状态对应的识别信息。

公开(公告)号：US09138536B2

公开(公告)日：2015-09-22

申请号：US12935672

申请日：2008-04-01

Applicant: David Stefani ,  Carlo Alberto Lodi ,  Salvatore Sanna

Inventor： David Stefani ,  Carlo Alberto Lodi ,  Salvatore Sanna

IPC: A61M1/00 ,  A61M31/00 ,  A61B5/00 ,  A61M5/168 ,  A61M37/00 ,  A61M1/36

CPC classification number: A61M5/16836 ,  A61M1/3653 ,  A61M1/3656 ,  A61M1/3669 ,  A61M5/16859 ,  A61M2205/15 ,  A61M2205/3306 ,  A61M2205/3375

Abstract: An apparatus for monitoring a vascular access includes a dialysis circuit having a venous needle and a blood pump of a peristaltic type which generates oscillatory perturbations in the circuit. An optical sensor, arranged on a patient's body by the venous needle, perceives the perturbations transmitted through the needle and sends a pulsating signal to an analysis device. The absence of a pulsating signal indicates a detachment of the needle.

Abstract translation: 用于监测血管通路的装置包括透析电路，其具有静脉针和蠕动型血泵，其产生电路中的振荡扰动。 通过静脉针布置在患者身上的光学传感器感知通过针头传播的扰动并向分析装置发送脉动信号。 没有脉动信号表示针的分离。

公开(公告)号：US08801646B2

公开(公告)日：2014-08-12

申请号：US13709870

申请日：2012-12-10

Applicant: Baxter International Inc. ,  Baxter Healthcare S.A.

Inventor： James Han ,  Thomas P. Hartranft ,  Thomas D. Kelly ,  Angel Lasso

IPC: A61M37/00 ,  C02F1/44

CPC classification number: A61M1/3669 ,  A61M1/30 ,  A61M1/3653 ,  A61M1/3656 ,  A61M1/3659 ,  A61M1/3661 ,  A61M2205/13 ,  Y10S439/909

Abstract: An extracorporeal blood system includes: an extracorporeal blood machine; an arterial line extending from the extracorporeal blood machine; a venous line extending from the extracorporeal blood machine; and an access disconnection circuit for detecting a disconnection of at least one of the arterial or venous lines from a patient, the access disconnection circuit including (i) a signal generation source having first and second signal generation source electrical lines each in electrical communication with blood traveling through one of the arterial or venous lines, (ii) a conductive pathway electrically communicating blood traveling through the arterial line with blood traveling through the venous line, and (iii) a signal processing unit positioned and arranged to process a signal generated by the source to detect the disconnection of the at least one of the arterial and venous lines.

Abstract translation: 体外血液系统包括：体外血液机器; 从体外血液机器延伸的动脉线; 从体外血液机器延伸的静脉线; 以及用于检测来自患者的动脉或静脉线中的至少一个的断开的接入断开电路，所述接入断开电路包括（i）具有与血液电连通的第一和第二信号发生源电线的信号发生源 穿过动脉或静脉线之一，（ii）将通过动脉线行进的血液与穿过静脉线的血液电连通的导电路径，以及（iii）信号处理单元，其被定位和布置成处理由 源，以检测动脉和静脉线中的至少一个的断开。

公开(公告)号：US08298152B2

公开(公告)日：2012-10-30

申请号：US12440266

申请日：2007-09-06

Applicant: Christoph König ,  Wolfgang Kleinekofort

Inventor： Christoph König ,  Wolfgang Kleinekofort

IPC: A61B5/02

CPC classification number: A61M1/3653 ,  A61M1/3656 ,  A61M1/3659 ,  A61M1/3669

Abstract: The present invention relates to a device and a method for monitoring an access to a patient, in particular a vascular access in extracorporeal blood treatment, in which a patient's blood is withdrawn from the patient via an arterial conduit and is returned to the patient via a venous conduit. In the device according to the present invention and in the method according to the present invention, an alternating voltage signal, relative to a common ground potential, is coupled in and out of the arterial and venous conduits, and the blood flowing through the arterial and venous conduits is at ground potential. In this way, disturbances, which can be attributed particularly to movements of the conduits, are reduced.

Abstract translation: 本发明涉及一种用于监测对患者的访问的装置和方法，特别是在体外血液处理中的血管通路，其中通过动脉导管将患者的血液从患者中取出并经由动脉导管返回给患者 静脉导管。 在根据本发明的装置和根据本发明的方法中，相对于公共地电位的交流电压信号耦合进入和离开动脉和静脉导管，并且血液流过动脉和 静脉导管处于地下潜力。 以这种方式，可以特别归因于导管的运动的干扰减少。

公开(公告)号：US20090180513A1

公开(公告)日：2009-07-16

申请号：US12407553

申请日：2009-03-19

Applicant: Karl G. Schick ,  David Uhen

Inventor： Karl G. Schick ,  David Uhen

IPC: G01N25/18 ,  G06F17/00 ,  G06K7/10

CPC classification number: G01N27/10 ,  A61M1/3621 ,  A61M1/3669 ,  A61M2205/6018

Abstract: Disposable, pre-sterilized, and pre-calibrated, pre-validated conductivity sensors are provided. These sensors are designed to store sensor-specific information, such as calibration and production information, in a non-volatile memory chip on the sensor on in a barcode printed on the sensor. The sensors are calibrated using 0.100 molar potassium chloride (KCl) solutions at 25 degrees Celsius. These sensors may be utilize with in-line systems, closed fluid circuits, bioprocessing systems, or systems which require an aseptic environment while avoiding or reducing cleaning procedures and quality assurance variances.

Abstract translation: 提供一次性，预消毒和预校准的预验证的电导率传感器。 这些传感器被设计为将传感器特定信息（例如校准和生产信息）存储在印刷在传感器上的条形码上的传感器上的非易失性存储器芯片中。 传感器在25摄氏度下使用0.100摩尔氯化钾（KCl）溶液进行校准。 这些传感器可以利用在线系统，封闭流体回路，生物处理系统或需要无菌环境同时避免或减少清洁程序和质量保证差异的系统。

公开(公告)号：US20070117010A1

公开(公告)日：2007-05-24

申请号：US11626241

申请日：2007-01-23

Applicant: Sherwin Shang ,  Ramesh Wariar ,  Angel Lasso ,  George Lamberson ,  Dan Marcquenski ,  Jan Jensen ,  David Kuhn ,  Raf Castellanos

Inventor： Sherwin Shang ,  Ramesh Wariar ,  Angel Lasso ,  George Lamberson ,  Dan Marcquenski ,  Jan Jensen ,  David Kuhn ,  Raf Castellanos

IPC: H01M2/00 ,  H01B1/12 ,  H01B1/00

CPC classification number: A61M1/367 ,  A61M1/16 ,  A61M1/1601 ,  A61M1/287 ,  A61M1/3607 ,  A61M1/3653 ,  A61M1/3655 ,  A61M1/3656 ,  A61M1/3659 ,  A61M1/3661 ,  A61M1/3669 ,  A61M5/16831 ,  A61M39/10 ,  A61M2205/0233 ,  A61M2205/13 ,  A61M2205/15 ,  A61M2205/18 ,  A61M2205/3317 ,  A61M2205/3324 ,  A61M2205/3344 ,  A61M2205/50 ,  A61M2205/6027 ,  A61M2230/65 ,  F16L25/01 ,  G01N27/07 ,  G01N27/10 ,  G01N33/49

Abstract: A coupler includes a conductive polymer material that is so constructed and arranged to join tubing, wherein the conductive polymer material includes a conductive polymer component selected from the group consisting of polyaniline, polypyrrole, polythiophenes, polyethylenedioxythiophene, poly(p-phenylene vinylene) and mixtures thereof.

Abstract translation: 耦合器包括被构造和布置成连接管道的导电聚合物材料，其中导电聚合物材料包括选自聚苯胺，聚吡咯，聚噻吩，聚亚乙基二氧噻吩，聚（对亚苯基亚乙烯基）和混合物 其中。

公开(公告)号：US20040154967A1

公开(公告)日：2004-08-12

申请号：US10772340

申请日：2004-02-06

Applicant: GAMBRO HOSPAL (Schweiz) AG

Inventor： Renato Pedrazzi

IPC: B01D061/00 ,  B01D065/00

CPC classification number: A61M1/342 ,  A61M1/1607 ,  A61M1/1609 ,  A61M1/3434 ,  A61M1/3437 ,  A61M1/3441 ,  A61M1/361 ,  A61M1/3612 ,  A61M1/3669 ,  A61M39/28 ,  A61M2230/30

Abstract: An infusion control device controls infusion of a liquid in an extracorporeal blood circuit having an arterial pipe connected to an inlet of a blood compartment of a filter and a venous pipe connected to an outlet of the blood compartment. The arterial pipe is also connected to a pre-dilution pipe of an infusion circuit, and the venous pipe is also connected to a post-dilution pipe of said infusion circuit. The infusion control device regulates and distributes an infusion flow rate in the arterial and venous pipes based on a monitoring of quantities that are directly correlated with the operating conditions of the filter.

Abstract translation: 输液控制装置控制在体外血液循环中的液体输注，其具有连接到过滤器的血液室的入口的动脉管和连接到血液室的出口的静脉管。 动脉管还连接到输注电路的预稀释管，静脉管也连接到所述输注电路的后稀释管。 输液控制装置基于与过滤器的操作条件直接相关的量的监测来调节和分配动脉和静脉管中的输注流速。

公开(公告)号：US20030195453A1

公开(公告)日：2003-10-16

申请号：US10120684

申请日：2002-04-10

Inventor： James Han ,  Thomas P. Hartranft ,  Thomas D. Kelly ,  Angel Lasso

IPC: A61M037/00 ,  C02F001/44 ,  C02F001/00

CPC classification number: A61M1/3669 ,  A61M1/30 ,  A61M1/3653 ,  A61M1/3656 ,  A61M1/3659 ,  A61M1/3661 ,  A61M2205/13 ,  Y10S439/909

Abstract: Apparatuses, devices, systems and methods for detecting access disconnection during medical therapy are provided. The present invention includes an electric circuit coupled to, for example, a blood circuit used during dialysis therapy. The electric circuit can be adapted to inject an electrical signal into the blood circuit such that changes in an electrical value in response to access disconnection, such as needle dropout or catheter drop-out, can be effectively detected.

Abstract translation: 提供了用于在药物治疗期间检测进入断开的装置，装置，系统和方法。 本发明包括耦合到例如在透析治疗期间使用的血液回路的电路。 电路可以适于将电信号注入到血液回路中，使得可以有效地检测响应于诸如针脱落或导管脱出的进入断开的电值的变化。

公开(公告)号：US20030111423A1

公开(公告)日：2003-06-19

申请号：US10355944

申请日：2003-01-31

Applicant: Transonic Systems, Inc.

Inventor： Nikolai M. Krivitski

IPC: A61B005/026 ,  A61B005/0275 ,  A61B008/06

CPC classification number: A61M1/3653 ,  A61B5/0275 ,  A61M1/16 ,  A61M1/3655 ,  A61M1/3658 ,  A61M1/3663 ,  A61M1/3669 ,  A61M1/367

Abstract: The measurement of blood flow in a dialysis shunt is obtained by injection of an indicator material into a venous line leading from dialysis equipment to the shunt. The blood flow in an arterial line leading from the shunt at a location downstream of the venous line to the dialysis equipment is monitored by an arterial line sensor for the presence of the indicator material. A detector connected to the sensor provides a dilution curve in response to the presence of the indicator material and the blood flow in the shunt is calculated from the area under the dilution curve. The locations of the arterial and venous lines in the shunt can be reversed to obtain a measurement of blood recirculation from the venous line into the arterial line.

Abstract translation: 通过将指示剂材料注射到从透析设备引导到分流器的静脉管线中，可以测量透析分流器中的血流量。 通过动脉线传感器监测从静脉线下游位置到分离设备的分流处的动脉线中的血液流动，以指示物质的存在。 连接到传感器的检测器响应于指示剂材料的存在而提供稀释曲线，并且根据稀释曲线下的面积计算分流器中的血流量。 分流器中的动脉和静脉线的位置可以反转，以获得从静脉线进入动脉线的血液再循环的测量。