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    VOLUMETRIC INFUSION PUMP
    14.
    发明专利
    VOLUMETRIC INFUSION PUMP 未知

    公开(公告)号：CA2404855A1

    公开(公告)日：1997-10-16

    申请号：CA2404855

    申请日：1997-03-21

    Applicant: BAXTER INT

    Inventor： HARRIS MARK ,  PLUMB JON ,  ALLEN TIM ,  MCGRAGHAN THOMAS ,  LYNN KENNETH M ,  DANBY HAL ,  PAGE STUART ,  HUTCHINS GEOFF ,  TURNER JOHN M ,  MYREN SVANTE ERIC ,  MONAGHAN MARTIN ,  BRUNDLE ALAN ,  MORASKI KEVIN J ,  LABEDZ RALPH H ,  STEWART JANICE

    IPC: A61M5/142 ,  A61M5/168

    Abstract: A medical infusion pump is disclosed which provides for greatly improved accuracy in the delivery of medica- ments to a patient. Among the various features included in the instant invention is a pumping body which serves to deform and reform a tube so as to maintain the initial cross section thereof and thereby preserve the output accuracy of the pump. Also disclosed with regard to the pumping body is a wholly mechanical synchronization of the pump- ing body and valves associated therewith and coactive with the aforementioned synchronization a mechanical lineariza- tion of output of the pumping body per each pumping cy- cle. Additionally, several features which serve to enhance the utility of the instant invention are also included therein among which is an associated assembly operative to auto- matically load or disicad a tube or IV set into or out of the pumping body. Associated with the assembly operative to automatically load or disload a tube and disclosed herein is an assembly operative to selectively open or close a slide clamp associated with the tube in such a way as to ensure that the tube is occluded such that in combination with the valves associated with the pumping body, a condition of free-flow of medicament is never realized. Additionally disclosed are sensor housings adapted to measure various quantities associated with fluid flowing through the tube wherein the housings arc with associated components adapted to achieve a substantially normal orientation with respect to the sidewall of the tube and in the achieving of such normal orientation, expressing art essentially zero elastic stress gradient across the tube.

    VOLUMETRIC INFUSION PUMP
    15.
    发明专利
    VOLUMETRIC INFUSION PUMP 未知

    公开(公告)号：CA2404806A1

    公开(公告)日：1997-10-16

    申请号：CA2404806

    申请日：1997-03-21

    Applicant: BAXTER INT

    Inventor： HARRIS MARK ,  MYREN SVANTE ERIC ,  PAGE STUART ,  PLUMB JON ,  STEWART JANICE ,  TURNER JOHN M ,  DANBY HAL ,  BRUNDLE ALAN ,  MCGRAGHAN THOMAS ,  MORASKI KEVIN J ,  HUTCHINS GEOFF ,  ALLEN TIM ,  MONAGHAN MARTIN ,  LYNN KENNETH M ,  LABEDZ RALPH H

    IPC: A61M5/142 ,  A61M5/168

    Abstract: A medical infusion pump is disclosed which provides for greatly improved accuracy in the delivery of medica- ments to a patient. Among the various features included in the instant invention is s pumping body which serves to deform and reform a tube so as to maintain the initial cross section thereof and thereby preserve the output accuracy of the pump. Also disclosed with regard to the pumping body is a wholly mechanical synchronization of the pump- ing body and valves associated therewith and coactive with the aforementioned synchronization a mechanical lineariza- tion of output of the pumping body per each pumping cy- cle. Additionally, several features which serve to enhance the utility of the instant invention are also included therein among which is an associated assembly operative to auto- matically load or disload a tube or IV set into or out of the pumping body. Associated with the assembly operative to automatically load or disload a tube and disclosed herein is an assembly operative to selectively open or close a slide clamp associated with the tube in such a way as to ensure that the tube. is occluded such that in combination with the valves associated with the pumping body, a condition of free-flow of medicament is never realized. Additionally disclosed arc sensor housings adapted to measurevarious quantities associated with fluid flowing through the tube wherein the housings are with associated components adapted to achieve a substantially normal orientation with respect to the sidewall of the tube and in the achieving of such normal orientation, expressing an essentially zero elastic stress gradient across the tube.

    16.
    发明专利
    未知

    公开(公告)号：DE69112334D1

    公开(公告)日：1995-09-28

    申请号：DE69112334

    申请日：1991-10-08

    Applicant: BAXTER INT

    Inventor： DANBY HAL ,  BRUNDLE ALAN

    IPC: A61M5/36 ,  G01N21/25

    Abstract: A device for detecting air in large bore thin walled transparent tubing 14 comprises a body 12 providing accommodation for the tubing; an LED 21 in a passage 19 in body 12 for transmitting light energy towards the tubing 14; a phototransistor 20 mounted in an orthogonally extending passage 18 for receiving light transmitted by LED 21 and modified by changes in the constituency of fluid passing through tubing 14, and an optical spacer in the form of a slotted collar 15 of material optically matched to the material of tubing 14 occuping space between LED 21 and the tubing 14 and phototransistor 20.

    SYSTEM AND METHOD FOR CONTROLLING CURRENT PROVIDED TO A STEPPING MOTOR
    17.
    发明专利
    SYSTEM AND METHOD FOR CONTROLLING CURRENT PROVIDED TO A STEPPING MOTOR 未知

    公开(公告)号：CA2556606C

    公开(公告)日：2015-10-13

    申请号：CA2556606

    申请日：2005-02-28

    Applicant: BAXTER INT

    Inventor： BRUNDLE ALAN ,  ALLEN TIM ,  DAO SON

    IPC: G05B19/40 ,  A61M5/142 ,  H02P8/22

    Abstract: A system and method is disclosed for controlling the input electrical current to an infusion pump stepper motor based on predetermined torque requirements. The system can include a motor controller and a non-volatile memory containing expected load torque values throughout a pump cycle. Responsive to the expected load torque values, the motor controller provides the stepper motor with a varying electrical current for overcoming load torque at each point in the pumping cycle. Additional factors can also be considered for varying the electrical current. These factors include, but are not limited to, temperature, pressure, and elapsed operating time.

    CONFIGURACION DE DISPOSITIVO MEDICO BASADO EN EL RECONOCIMIENTO DE INFORMACIONES DE IDENTIFICACION.
    19.
    发明专利
    CONFIGURACION DE DISPOSITIVO MEDICO BASADO EN EL RECONOCIMIENTO DE INFORMACIONES DE IDENTIFICACION. 未知

    公开(公告)号：ES2322658T3

    公开(公告)日：2009-06-24

    申请号：ES05737651

    申请日：2005-04-19

    Applicant: BAXTER INT

    Inventor： STEWART JANICE ,  MEINZER RANDOLPH ,  BELLO DEBRA K ,  MULLAN JANET ,  BRUNDLE ALAN ,  JACOBSON JAMES D

    IPC: A61M39/00 ,  A61M5/14 ,  A61M5/172 ,  A61M39/28 ,  G06F19/00

    Abstract: Sistema de administración médico (10, 30) para administrar un medicamento (17) a un paciente, comprendiendo el sistema: un grupo de conductos (14, 34) adaptado para conectarlo a un recipiente (16) que contiene medicamento; un identificador (18) integrado en una pinza corrediza (42), asociado al grupo de conductos y provisto de información de identificación asociada; y un dispositivo de administración (12, 32) configurado para acoplar el grupo de conductos y administrar el medicamento al paciente, incluyendo el dispositivo de administración un sistema de reconocimiento (20) capaz de obtener la información de identificación asociada al identificador y un receptáculo de pinza corrediza (44) integrado en el sistema de reconocimiento (20) y configurado para aceptar la pinza corrediza (42) asociada con el grupo de conductos (14, 34), basándose el sistema de administración que puede configurarse en la información de identificación, en donde la información de identificación comprende un tipo de administración asociado con el grupo de conductos.

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