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    Infusion pump having automatic means for tube loading and opening slide clamp
    14.
    发明专利
    Infusion pump having automatic means for tube loading and opening slide clamp 未知

    公开(公告)号：GB2338757A

    公开(公告)日：1999-12-29

    申请号：GB9921198

    申请日：1997-02-27

    Applicant: BAXTER INT

    Inventor： DANBY HAL ,  PLUMB JON ,  HARRIS MARK ,  MONAGHAN MARTIN

    IPC: A61M5/142 ,  A61M5/168 ,  A61M5/36 ,  A61M39/28 ,  F04B43/08 ,  F04B43/12 ,  F04B53/16

    Abstract: A slide clamp 895 has a closed position for clamping a tube (5, fig 17) and an open position. An infusion pump (10, fig 1) has automatic tube loading means that also drives crank (650, fig 19). On this crank rides bushing 802 which runs in raceway 813 to cause linear motion of traveller 815 and clams 820,830 which then close onto clamp 895, and draw it into groove 856, tube stops 844 retaining the tube, thereby opening the clamp 895. Shield 811 prevents accidental removal of the clamp 895. The infusion pump is then operable to pump fluid through the tube. This arrangement further assures that the clamp 895 is closed before the loading means allows removal of the tube. Locating pins 824A,824B combine with the asymmetry of the clamp 895 to orientate the clamp. Two optical sensors (fig 28) detect positions of clamp 895 in groove 856.

    VOLUMETRIC INFUSION PUMP
    16.
    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
    17.
    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.

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