Disclosed is a low cost, disposable, infusion pump. The infusion pump can include an integrated occlusion detector that detects both upstream and downstream occlusions in an infusion tube. In addition, the infusion pump can easily monitor flow rates through the infusion tube, and be quickly set to i
Disclosed is a low cost, disposable, infusion pump. The infusion pump can include an integrated occlusion detector that detects both upstream and downstream occlusions in an infusion tube. In addition, the infusion pump can easily monitor flow rates through the infusion tube, and be quickly set to infuse at a pre-determined rate. An armature within the infusion pump works in concert with a pair of tubing pinchers to precisely control the movement of fluid within the tubing. Sensors mounted within the device detect the position of the armature and can determine if an occlusion has occurred in the tubing.
대표청구항▼
1. A method for detecting an upstream occlusion in an infusion apparatus having a flexible tube, wherein the tube opens to fill with fluid from an upstream fluid source and is collapsed by an armature to pump fluid to a downstream patient, the method comprising: applying a first force to the armatur
1. A method for detecting an upstream occlusion in an infusion apparatus having a flexible tube, wherein the tube opens to fill with fluid from an upstream fluid source and is collapsed by an armature to pump fluid to a downstream patient, the method comprising: applying a first force to the armature to collapse the tube;sensing the collapsing of the tube, wherein sensing the collapsing of the tube includes sensing a first position of the armature with the tube collapsed;applying a second force to the armature to allow the tube to open;sensing the opening of the tube, wherein sensing the opening of the tube includes sensing a second position of the armature with the tube open;measuring the time required for the tube to move from a collapsed state to an open state; anddetecting an upstream occlusion when the time to move the tube from the collapsed state to the open state is greater than a reference time,wherein measuring the time required for the tube to move from the collapsed state to the open state includes measuring an elapsed time between sensing the first position of the armature and sensing the second position of the armature, and wherein detecting an upstream occlusion includes detecting an upstream occlusion when the elapsed time is greater than the reference time. 2. The method of claim 1, wherein sensing the opening of the tube comprises measuring movement of the armature from a lowered position to a raised position. 3. The method of claim 1, wherein detecting comprises detecting an upstream occlusion when the time to move from the collapsed state to the open state is greater than a reference time, wherein the reference time is the time required to move the tube from the collapsed state to the open state at a minimum allowable fluid pressure. 4. The method of claim 1, wherein the second force is small enough that the elapsed time is equal to or less than the reference time when the fluid is pressurized at a minimum allowable pressure. 5. The method of claim 4, wherein the first force is large enough that the elapsed time is greater than the reference time when the fluid is pressurized at less than the minimum allowable pressure. 6. An apparatus for detecting an upstream occlusion in an infusion apparatus with a flexible tube that opens to fill with fluid from an upstream fluid source and is collapsed by an armature to pump fluid to a downstream patient, the apparatus comprising: a sensor that senses the collapsing and opening of the flexible tube by measuring movement of the flexible tube from the collapsed state to the open state, wherein the sensor is configured to sense a first position of the armature with the tube collapsed and to sense a second position of the armature with the tube open;a controller that activates and deactivates the armature to allow the flexible tube to open and fill with fluid and to collapse the flexible tube and pump fluid to the patient;a timer that measures the opening time of the tube to move from a collapsed state to an open state, wherein the opening time is the elapsed time between sensing the first position of the armature and sensing the second position of the armature;a reference opening time; anda control module that compares the opening time to the reference opening time, wherein an upstream occlusion is detected if the opening time is greater than the reference opening time. 7. The apparatus of claim 6, wherein the reference opening time is the time required to open the tube at a minimum allowable fluid pressure. 8. The apparatus of claim 6, wherein the sensor comprises the armature and the armature is configured to rise and fall as the tube collapses and opens. 9. A method for detecting a downstream occlusion in an infusion apparatus having a flexible tube, wherein the tube opens to fill with fluid from an upstream fluid source and is collapsed by an armature to pump fluid to a patient, the method comprising: applying a predetermined compressive force with a permanent magnet to attract the armature to collapse the tube;applying a first force to the armature to allow the tube to open;sensing the opening of the tube, wherein sensing the opening of the tube includes sensing a first position of the armature with the tube open;applying a second force to the armature to collapse the tube;sensing the collapsing of the tube, wherein sensing the collapsing of the tube includes sensing a second position of the armature with the tube collapsed,measuring the time required for the tube to move from an open state to a collapsed state; anddetecting a downstream occlusion when the time to move the tube from the open state to the collapsed state is greater than a reference time,wherein measuring the time required for the tube to move from the open state to the collapsed state includes measuring an elapsed time between sensing the first position of the armature and sensing the second position of the armature, and wherein detecting a downstream occlusion includes detecting a downstream occlusion when the elapsed time is greater than the reference time. 10. The method of claim 9, wherein sensing the collapsing of the tube comprises measuring movement of the armature from a raised position to a lowered position. 11. The method of claim 9, wherein applying a predetermined compressive force comprises applying a predetermined compressive force equal to the force required to collapse the tube when the fluid is at a maximum allowable pressure. 12. The method of claim 9, wherein detecting comprises detecting a downstream occlusion when the time to collapse the tube is greater than the time to collapse the tube when the fluid is at a maximum allowable pressure. 13. The method of claim 9, wherein the second force is large enough that the elapsed time is equal to or less than the reference time when the fluid is pressurized at a maximum allowable pressure. 14. The method of claim 13, wherein the first force is small enough that the elapsed time is greater than the reference time when the fluid is pressurized at greater than the maximum allowable pressure. 15. An apparatus for detecting a downstream occlusion in an infusion apparatus with a tube that opens to fill with fluid from an upstream reservoir and is collapsed by an armature to pump fluid to a downstream patient, the apparatus comprising: a permanent magnet positioned to attract the armature to apply a predetermined compressive force to the flexible tube thereby collapsing the tube and pumping fluid to a patient;a sensor that senses the collapsing and opening of the flexible tube, wherein the sensor is configured to sense a first position of the armature with the tube open and to sense a second position of the armature with the tube collapsed;a timer that measures the time it takes for the tube to move from an open state to a collapsed state, wherein the measured time is the elapsed time between sensing the first position of the armature and sensing the second position of the armature;a reference collapsing time; anda control module that compares the measured time to move the tube from the open state to the collapsed state with the reference collapsing time, wherein a downstream occlusion is detected if the measured time is greater than the reference collapsing time. 16. The apparatus of claim 15, wherein the predetermined compressive force is the force required to collapse the tube when the fluid is at a maximum allowable pressure. 17. The apparatus of claim 15, wherein the sensor senses the position of the armature when the tube is collapsed and opened. 18. The apparatus of claim 15, wherein the reference collapsing time is the time required for the tube to collapse when the fluid is at a maximum allowable pressure.
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Tune Joel (Antioch IL) Anderson Robert L. (Boulder CO) Blankenship Larry (Boulder CO) Colesworthy ; III Daniel C. (Boulder CO) Heim Warren P. (Boulder CO) Miller ; III Scott A. (Boulder CO) Sherman B, Ambulatory infusion pump.
Campbell Peter (Lawrenceville NJ) Tsals Izrail (Princeton Junction NJ) Matsuura David (La Jolla CA), Apparatus and method for controlling the parenteral administration of fluids.
Sancoff Gregory E. (Windham NH) Doyle Mark C. (San Diego CA) Field Frederic P. (Solana Beach CA), Apparatus for the generation of gas pressure for controlled fluid delivery.
Koenig Paul A. (Valencia CA) Slate John B. (Studio City CA) Rule ; III O. Rey (Santa Monica CA) Colman Fredric C. (Bel Air CA), Clinical configuration of multimode medication infusion system.
Rasmussen Thomas Buch,DKX ; Jannasch Patric,DKX ; J.o slashed.rgensen Erling Bonne,DKX, Device for the administration of a liquid medicament suspension.
Prestele Karl (Erlangen DEX) Franetzki Manfred (Uttenreuth DEX) Reif Erich (Erlangen DEX), Device for the infusion of fluids into the human or animal body.
Katz Solly (173 Rechov ; Hakeramim Hakeramin ; Efrat ILX 90962), Fluid dispenser including an arrangement to impart wave-like motion to the store fluid.
Simons Tad D. (Menlo Park CA) Stawitcke Frederick A. (Sunnyvale CA) Reed William M. (Carlisle MA) Tessier Paul A. (Hudson MA), IV pump and disposable flow chamber with flow control.
Simons Tad D. (Menlo Park CA) Stawitcke Frederick A. (Sunnyvale CA) Reed William M. (Carlisle MA) Tessier Paul A. (Hudson MA) Zeitlin Marc J. (Acton MA), IV pump and disposable flow chamber with flow control.
Ford Alan D. (Concord NH) Sims Nathaniel M. (Wellesley Hills MA) Mandro Marc A. (Bow NH), Infusion pump with an electronically loadable drug library and a user interface for loading the library.
Ford Alan D. ; Sims Nathaniel M. ; Mandro Marc A., Infusion pump with an electronically loadable drug library and a user interface for loading the library.
Diaz, Luis A.; Hershberger, David; Strickler, Michael; Toman, Jason Dee; Malackowski, Donald W.; Huyser, Richard Franklin, Integrated medication delivery system.
Falk Theodore J. ; Brown W. Richard ; Morris Lawrence E. ; Frenz ; Jr. Norbert W. ; Gillies Douglas K. ; Konopa Raymond S., Low power electromagnetic pump.
Falk Theodore J. ; Brown W. Richard ; Morris Lawrence E. ; Frenz ; Jr. Norbert W. ; Gillies Douglas K. ; Konopa Raymond S., Low power electromagnetic pump.
Falk Theodore J. ; Brown W. Richard ; Morris Lawrence E. ; Frenz ; Jr. Norbert W. ; Gillies Douglas K. ; Konopa Raymond S., Low power electromagnetic pump.
Anderson Robert L. (1011 Rainbow Way Boulder CO 80303) Castleberry Jeffrey P. (967 Utica Cir. Boulder CO 80304) Stracener Steve W. (P.O. Box 731 Frederick CO 80530), Magnetic detent and position detector for fluid pump motor.
Gibson, Scott R.; Lord, Peter C.; Lorenzen, Eric M.; McConnell, Susan M.; Gray, John F.; Bosley, Robert W., Medical infusion device with a source of controlled compliance.
Dixon Robert (Palmer Lake CO) Lapp Theodore R. (Mission Viejo CA) Bobo ; Jr. Donald E. (Orange CA), Method and apparatus for measuring flow using frequency-dispersive techniques.
Matsuura David G. ; Gillespie Walter Dean ; Greelis John Patrick ; Parsons Charles Lowell ; Sirivong Mikxay ; Zupkas Paul F., Method for delivering a medication.
Sancoff Gregory E. (Rancho Santa Fe CA) Doyle Mark C. (San Diego CA) Field Frederic P. (Solana Beach CA), Method for generating gas to deliver liquid from a container.
Campbell Robert E. (Chicago IL) Kulisz Andre A. (St. Paul MN) Migachyov Valery (St. Paul MN), Method for pumping fluid from a flexible, variable geometry reservoir.
Owens Dana J. ; Raines Aaron ; Rasmussen Ed G. ; Harrison David J. ; Anderson Carl R. ; Ozinga David G., Method of making a disposable cassette with negative head height fluid supply.
Yokota, Shinichi; Otsubo, Yasufumi; Nakada, Takeshi; Edamura, Kazuya, Micromotors, linear motors and microactuators for controlling flow properties of fluids.
Yokota Shinichi,JPX ; Otsubo Yasufumi,JPX ; Nakada Takeshi,JPX ; Edamura Kazuya,JPX, Micromotors, linear motors, micropumps, methods of using the same, microactuators, methods of controlling flow properties of fluids, and apparatuses for controlling flow properties of fluids.
Lewis Thomas G. (Fairview Heights IL) Yerlikaya Denis Y. (Des Peres MO) Schrader Eugene F. (St. Louis MO), Peristaltic infusion device with backpack sensor.
Diaz, Luis A.; Hershberger, David; Strickler, Michael; Toman, Jason Dee; Malackowski, Donald W.; Huyser, Richard Franklin, Port assembly for an integrated medication delivery system.
Cordner ; Jr. Edward T. (Oceanside CA) Walker ; III George T. (San Diego CA) Barr Howard S. (Escondido CA) Khadem Farid (San Diego CA), Programmable infusion pump.
McMullen John K. (“Carragh”11 Mount Aboo Park Finahgy ; Belfast BT10 ODJ GB5), Pump, and an apparatus incorporating the pump for infusing liquid medicine.
Danby Hal C. (Sudbury GB2) Faulkner Eric A. (Maidenhead GB2), Pumping device having inlet and outlet valves adjacent opposed sides of a tube deforming device.
Reilly, David M.; Havrilla, Joseph B.; Gelblum, Eugene A.; Kazousky, Daniel, System and method for providing information from a syringe to an injector.
Blomquist Michael L. (Coon Rapids MN) Peterson Thomas L. (Shoreview MN), Systems and methods for operating ambulatory medical devices such as drug delivery devices.
Blomquist Michael L. (Coon Rapids MN) Peterson Thomas L. (Shoreview MN), Systems and methods for operating ambulatory medical devices such as drug delivery devices.
Kriesel Marshall S. ; Arnold Steven M. ; Garrison James ; Kazemzadeh Farhad, Variable rate infusion apparatus with indicator and adjustable rate control.
Bloom Nicole D. ; Kamen Dean L. ; Lanigan Richard ; Grinnell Charles M. ; Grant Kevin, Vial loading method and apparatus for intelligent admixture and delivery of intravenous drugs.
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