Detecting unintentional motor motion and infusion device incorporating same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-005/142
A61M-005/168
출원번호
US-0229004
(2016-08-04)
등록번호
US-9795732
(2017-10-24)
발명자
/ 주소
Trock, Adam S.
Kow, Hsiao-Yu S.
Mattson, Nichole R.
Chow, Steve
Campbell, Alexander S.
출원인 / 주소
Medtronic MiniMed, Inc.
대리인 / 주소
Lorenz & Kopf, LLP
인용정보
피인용 횟수 :
0인용 특허 :
196
초록▼
Apparatus are provided for infusion devices and related systems and operating methods. An exemplary system includes a motor, a sensing arrangement coupled to the motor to provide output indicative of a detected characteristic of the motor when the sensing arrangement is enabled, and a module coupled
Apparatus are provided for infusion devices and related systems and operating methods. An exemplary system includes a motor, a sensing arrangement coupled to the motor to provide output indicative of a detected characteristic of the motor when the sensing arrangement is enabled, and a module coupled to the sensing arrangement to periodically enable the sensing arrangement while the motor is idle and detect potential unintended motion of the motor based on the output from the sensing arrangement while periodically enabling the sensing arrangement. In some embodiments, the motor includes a rotor configured such that its rotation provides translational displacement of a plunger in a fluid reservoir, and the sensing arrangement includes one or more sensors configured to provide output indicative of a detected magnetic field of the rotor magnet.
대표청구항▼
1. An infusion device comprising: a motor including a rotor, the rotor having a magnet coupled thereto, wherein rotation of the rotor is configured to provide translational displacement of a plunger in a fluid reservoir;a sensing arrangement coupled to the motor, the sensing arrangement comprising o
1. An infusion device comprising: a motor including a rotor, the rotor having a magnet coupled thereto, wherein rotation of the rotor is configured to provide translational displacement of a plunger in a fluid reservoir;a sensing arrangement coupled to the motor, the sensing arrangement comprising one or more sensors to provide output indicative of a detected magnetic field of the magnet when the sensing arrangement is enabled; anda module coupled to the sensing arrangement to: periodically enable the sensing arrangement to consume current while the motor is idle and disable the sensing arrangement after each enabling; anddetect potential unintended motion of the motor based on the output from the sensing arrangement while periodically enabling the sensing arrangement. 2. The infusion device of claim 1, wherein the module continuously enables the sensing arrangement for a finite duration in response to detecting the potential unintended motion, determines whether the potential unintended motion exceeds a threshold based on the output from the sensing arrangement while continuously enabling the sensing arrangement, and initiates a remedial action in response to determining the potential unintended motion exceeds the threshold. 3. The infusion device of claim 2, wherein the module determines a number of unintended rotations of the rotor of the motor while the sensing arrangement is continuously enabled and determines the potential unintended motion exceeds the threshold when the number of unintended rotations exceeds a threshold number. 4. The infusion device of claim 2, wherein the module determines a rotational displacement of the rotor of the motor while the sensing arrangement is continuously enabled and determines the potential unintended motion exceeds the threshold when a magnitude of the rotational displacement exceeds a threshold value. 5. The infusion device of claim 2, wherein the module determines a number of sudden rotations of the rotor of the motor while the sensing arrangement is continuously enabled and initiates the remedial action when the number of sudden rotations exceeds a threshold number. 6. The infusion device of claim 1, further comprising an energy source coupled to the sensing arrangement, wherein: the sensing arrangement consumes the current from the energy source when the sensing arrangement is enabled; andthe sensing arrangement is disabled prior to periodically enabling the sensing arrangement. 7. The infusion device of claim 6, further comprising a motor driver module coupled between the energy source and the motor to provide current from the energy source to the motor to operate the motor, wherein the module determines the motor driver module is idle prior to periodically enabling the sensing arrangement. 8. The infusion device of claim 1, wherein the module detects potential unintended rotation of the rotor by: obtaining an initial sensor output state from the one or more sensors in response to initially enabling the sensing arrangement while the motor is idle; anddetermining a difference between a subsequent sensor output state from the one or more sensors and the initial sensor output state is not indicative of alignment of a boundary of the magnetic field of the magnet with a first sensor of the one or more sensors. 9. The infusion device of claim 1, wherein the module detects the potential unintended motion by: obtaining a reference output state from the sensing arrangement in response to periodically enabling the sensing arrangement; andidentifying the potential unintended motion when a difference between the reference output state and a subsequent output state from the sensing arrangement while periodically enabling the sensing arrangement is not attributable to a boundary error. 10. The infusion device of claim 1, wherein: the motor includes stator windings;current does not flow through the stator windings of the motor when the motor is idle; andthe sensing arrangement does not consume current while disabled. 11. A method of detecting potential unintended motion of a motor of an infusion device including the motor configured to provide translational displacement of a plunger in a fluid reservoir, the motor including a rotor, the method comprising: periodically enabling a sensing arrangement while the motor is idle, the sensing arrangement including one or more sensors providing output indicative of a detected characteristic of the rotor when the sensing arrangement is enabled, wherein periodically enabling the sensing arrangement comprises: enabling the sensing arrangement to consume current on a periodic basis; anddisabling the sensing arrangement after each enabling; anddetecting potential unintended rotation of the rotor while the motor is idle based on outputs from the one or more sensors when periodically enabling the sensing arrangement. 12. The method of claim 11, further comprising: obtaining one or more reference sensor output states from the one or more sensors in response to the periodic enabling; anddetecting the potential unintended rotation when a difference between a subsequent sensor output state from the one or more sensors during the periodic enabling is not equal to the one or more reference sensor output states. 13. The method of claim 12, wherein obtaining the one or more reference sensor output states comprises: identifying an initial sensor output state from the one or more sensors as a first reference sensor output state of the one or more reference sensor output states; andwhen a difference between a second sensor output state from the one or more sensors and the first reference sensor output state corresponds to an incremental rotation of the rotor, identifying the second sensor output state as a second reference sensor output state of the one or more reference sensor output states. 14. The method of claim 13, wherein detecting the potential unintended rotation of the rotor comprises detecting the potential unintended rotation when a subsequent sensor output state from the one or more sensors during the periodic enabling is not equal to either the first reference sensor output state or the second sensor output state. 15. The method of claim 13, further comprising obtaining the subsequent sensor output state from the one or more sensors after identifying the second sensor output state as the second reference sensor output state. 16. The method of claim 11, further comprising: continuously enabling the sensing arrangement for a finite duration while the motor is idle in response to detecting the potential unintended rotation; andinitiating a remedial action based on the outputs from the one or more sensors while continuously enabling the sensing arrangement. 17. The method of claim 16, further comprising: determining whether the potential unintended rotation is greater than a threshold based on the outputs from the one or more sensors when continuously enabling the sensing arrangement; andadjusting subsequent operation of the motor to compensate for the potential unintended rotation when the potential unintended rotation is less than the threshold, wherein initiating the remedial action comprises initiating the remedial action in response to determining the potential unintended rotation is greater than the threshold. 18. The method of claim 11, further comprising obtaining an initial reference sensor output state from the one or more sensors upon initiation of the periodic enabling, wherein detecting the potential unintended rotation of the rotor comprises detecting the potential unintended rotation when a difference between a subsequent sensor output state from the one or more sensors during the periodic enabling and the initial reference sensor output state is greater than an incremental rotation of the rotor. 19. The method of claim 11, further comprising resetting one or more counters prior to periodically enabling the sensing arrangement.
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이 특허에 인용된 특허 (196)
Batina, William P.; White, Robert M., Acquisition circuit for cardiac pacer.
Schulman Joseph H. ; Lucisano Joseph Y. ; Shah Rajiv ; Byers Charles L. ; Pendo Shaun M., Alumina insulation for coating implantable components and other microminiature devices.
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.
Coutr James E. (Concord MA) Griffin Wayne P. (Dracut MA) Crisler Charles M. (Windham NH), An infusion management and pumping system having an alarm handling system.
Say James ; Tomasco Michael F. ; Heller Adam ; Gal Yoram,ILX ; Aria Behrad ; Heller Ephraim ; Plante Phillip John ; Vreeke Mark S. ; Friedman Keith A. ; Colman Fredric C., Analyte monitoring device and methods of use.
Steil, Garry M.; Rebrin, Kerstin; Goode, Jr., Paul V.; Mastrototaro, John J.; Purvis, Richard E.; Van Antwerp, William P.; Shin, John J.; Talbot, Cary D., Closed loop system for controlling insulin infusion.
Prestele Karl (Erlangen DEX) Franetzki Manfred (Uttenreuth DEX) Reif Erich (Erlangen DEX), Device for the infusion of fluids into the human or animal body.
Say James ; Tomasco Michael F. ; Heller Adam ; Gal Yoram,ILX ; Aria Behrad ; Heller Ephraim ; Plante Phillip John ; Vreeke Mark S., Electrochemical analyte.
James Say ; Michael F. Tomasco ; Adam Heller ; Yoram Gal IL; Behrad Aria ; Ephraim Heller ; Phillip John Plante ; Mark S. Vreeke, Electrochemical analyte sensor.
Gibson, Scott R.; Shah, Rajiv; Chernoff, Edward; Byers, Charles, Electronic lead for a medical implant device, method of making same, and method and apparatus for inserting same.
Gregg Brian A. (13940 Braun Dr. Golden CO 80401) Heller Adam (5317 Valburn Cir. Austin TX 78731) Kerner Wolfgang (Universitat Zu Lubeck ; Klinik Fur Innerere Medizin ; Razeburger Allee 160 D-2400 Lub, Enzyme electrodes.
Gregg Brian A. (13940 Braun Dr. Golden CO 80401) Heller Adam (5317 Valburn Cir. Austin TX 78731) Kerner Wolfgang (Universitat zu Lubeck ; Klinik fur Innerere Medizin ; Razeburger Allee 160 D-2400 Lub, Enzyme electrodes.
Lord Peter C. (Santa Clarita CA) Van Antwerp William P. (Brentwood CA) Mastrototaro John J. (Los Angeles CA) Cheney ; II Paul S. (Beverly Hills CA) Schnabel Nannette M. (Valencia CA), Flex circuit connector.
Dempsey Michael K. (Acton MA) Kotfila Mark S. (Chelmsford MA) Snyder Robert J. (Westford MA), Flexible patient monitoring system featuring a multiport transmitter.
Yap, Darren Y. K.; Gulati, Poonam; Kovelman, Paul H.; Van Antwerp, William P.; Enegren, Bradley J.; Geismar, Eric P.; Hudak, Philip J.; McConnell, Susan; Moberg, Sheldon B., Fluid reservoir piston.
Schulman Joseph H. (Santa Clarita CA) Rule ; III Orville R. (Los Angeles CA) Whitmoyer David I. (Los Angeles CA) Lebel Ronald J. (Sherman Oaks CA) Lucisano Joseph Y. (Saugus CA) Mann Alfred E. (Bever, Glucose monitoring system.
Schulman Joseph H. (Santa Clarita CA) Rule ; III Orville Rey (Los Angeles CA) Whitmoyer David I. (Los Angeles CA) Lebel Ronald J. (Sherman Oaks CA) Lucisano Joseph Y. (Saugus CA) Mann Alfred E. (Beve, Glucose sensor assembly.
McIvor, K. Collin; Cabernoch, James L.; Branch, Kevin D.; Van Antwerp, Nannette M.; Halili, Edgardo C.; Mastrototaro, John J., Glucose sensor package system.
Allen Douglas J. (Indianapolis IN) Johnson Kirk W. (Indianapolis IN) Nevin Robert S. (Indianapolis IN), Hydrophilic polyurethane membranes for electrochemical glucose sensors.
Schulman Joseph H. ; Byers Charles L. ; Adomian Gerald E. ; Colvin Michael S., Implantable enzyme-based monitoring systems having improved longevity due to improved exterior surfaces.
Wilson George S. (Lawrence KS) Bindra Dilbir S. (Lawrence KS) Hill Brian S. (Lawrence KS) Thevenot Daniel R. (Paris Cedex FRX) Sternberg Robert (Thiais FRX) Reach Gerard (Paris Cedex KS FRX) Zhang Ya, Implantable glucose sensor.
Meadows, Paul M.; Mann, Carla M.; Tsukamoto, Hisashi; Chen, Joey, Implantable pulse generators using rechargeable zero-volt technology lithium-ion batteries.
Groshong Leroy E. (Portland OR) Groshong Judson C. (Beaverton OR) Brawn ; deceased R. James (late of Portland OR by Stanley C. Fisher ; administrator), Infusion pump.
Gargano Diane A. ; Flachbart Eric J. ; Cowen Barry ; Duh Monica ; Rudser ; Jr. John L. ; Zhen Ken ; Noble Lynn ; Warhurst Julian ; Pedraza Luis, Infusion pump for at least one syringe.
Coutre James E. (114 Stone Root La. Concord MA 01742) Griffin Wayne P. (55 Surrey La. Dracut MA 01826) Crisler Charles M. (10 Sunridge Rd. Windham NH 03087), Infusion pump management system for suggesting an adapted course of therapy.
Hyman Oscar (Park Ridge IL) Pribil Jeffery (Algonquin IL) Zeilig Avi (Rosh-Ha\ain ILX) Deckert Clinton (Poway CA), Infusion pump with dual-latching mechanism.
Causey ; III James D. (Simi Valley CA) Schloss Harold C. (Los Angeles CA) Snell Jeffery D. (Northridge CA), Interactive programming and diagnostic system for use with implantable pacemaker.
Say, James L.; Sakslund, Henning; Tomasco, Michael F.; Audett, Jay D.; Cho, Hyun; Yamasaki, Duane O.; Heller, Adam, Mass transport limited in vivo analyte sensor.
Castellano Thomas P. (Beverly Hills CA) Schumacher Robert (Beverly Hills CA), Medication delivery device with a microprocessor and characteristic monitor.
Colman Fredric C. (Granada Hills CA) Purvis Richard E. (Glendale CA), Medication infusion system having optical motion sensor to detect drive mechanism malfunction.
Peterson Bruce A. (Milwaukie OR) Hogard Michael E. (Oregon City OR) Johnson Harley D. (Portland OR) Kelly Thomas D. (Portland OR) Long Jean M. (Portland OR) Preston ; Jr. William G. (Portland OR), Method and apparatus for kidney dialysis.
Joseph H. Schulman ; Joseph Y. Lucisano ; Rajiv Shah ; Charles L. Byers ; Shaun M. Pendo, Method of applying insulation for coating implantable components and other microminiature devices.
Feldman, Benjamin J.; Heller, Adam; Heller, Ephraim; Mao, Fei; Vivolo, Joseph A.; Funderburk, Jeffery V.; Colman, Fredric C.; Krishnan, Rajesh, Method of using a small volume in vitro analyte sensor with diffusible or non-leachable redox mediator.
Moberg, Sheldon B.; Causey, III, James D.; Bare, Rex O.; Scherer, Andrew J.; Sargent, Bradley J., Methods, apparatuses, and uses for infusion pump fluid pressure and force detection.
Sheldon B. Moberg ; James D. Causey, III ; Rex O. Bare ; Andrew J. Scherer ; Bradley J. Sargent, Methods, apparatuses, and uses for infusion pump fluid pressure and force detection.
Brown Stephen J. ; Jensen Erik K., On-line health education and feedback system using motivational driver profile coding and automated content fulfillment.
Roizen Michael (Chicago IL) Turcotte ; II William E. (Oak Park IL) Pfisterer Richard E. (Arlington Heights IL), Portable medical interactive test selector having plug-in replaceable memory.
Say James ; Tomasco Michael F. ; Heller Adam ; Gal Yoram,ILX ; Aria Behrad ; Heller Ephraim ; Plante Phillip John ; Vreeke Mark S., Process for producing an electrochemical biosensor.
Livingston John H. (Los Angeles CA) Frye Ward K. (San Luis Obispo CA) Field Jeffrey F. (Northridge CA), Proctective case for a medication infusion pump.
Sancoff Gregory E. (Leucadia CA) McWilliams Mark (San Diego CA) Barr Howard S. (Escondido CA) Cordner ; Jr. Edward T. (Carlsbad CA) Barton Russell C. (Monrovia CA), Programmable infusion system.
Shin, John J.; Holtzclaw, Kris R.; Dangui, Nandita D.; Kanderian, Jr., Sami; Mastrototaro, John J.; Hong, Peter I., Real time self-adjusting calibration algorithm.
Langen Pauline A. (Simsbury CT) Katz Jeffrey S. (West Hartford CT) Dempsey Gayle (Needham MA) Pompano James (East Haven CT), Remote monitoring of high-risk patients using artificial intelligence.
Epstein Paul (Brookline MA) Petschek Harry (Lexington MA) LaWhite Eric (South Royalton VT) Strohl Clair (Norfolk MA) Coyne Henry (Framington MA) Kaleskas Edward (Jefferson MA) Adaniya George (Swampsc, Remotely programmable infusion system.
Lundquist Ingemar H. (Pebble Beach CA) Tarczy-Hornoch Zoltan (Berkeley CA) Kardos Thomas J. (Laguna Beach CA), Retroperfusion and retroinfusion control apparatus, system and method.
Liamos, Charles T.; Feldman, Benjamin J.; Funderburk, Jeffery V.; Krishnan, Rajesh; Plante, Phillip John; Vivolo, Joseph A.; Jin, Robert Y.; Cloud, Michael S., Small volume in vitro analyte sensor and methods.
Liamos, Charles T.; Feldman, Benjamin J.; Funderburk, Jeffery V.; Krishnan, Rajesh; Plante, Phillip John; Vivolo, Joseph A.; Jin, Robert Y.; Cloud, Michael S., Small volume in vitro analyte sensor and methods.
Nason Clyde K. (25745 N. Player Dr. Valencia CA 91355) Culp Gordon W. (13832 Haynes St. Van Nuys CA 91401), Solenoid drive apparatus for an external infusion pump.
Aoki Thomas T. (1021 El Sur Way Sacramento CA 95825), System and method for treating animal body tissues to improve the dietary fuel processing capabilities thereof.
Tacklind Christopher A. (Palo Alto CA) Sanders Matthew H. (Los Altos Hills CA) Walne Geoffrey B. (Atherton CA), System for monitoring and reporting medical measurements.
Blomquist Michael L. (Coon Rapids MN) Peterson Thomas L. (Shoreview MN), Systems and methods for operating ambulatory medical devices such as drug delivery devices.
Mann, Alfred E.; Purvis, Richard E.; Mastrototaro, John J.; Causey, James D.; Henke, James; Hong, Peter; Livingston, John H.; Hague, Clifford W.; Hite, Brad T., Telemetered characteristic monitor system and method of using the same.
Lord Peter C. (Santa Clarita CA) Van Antwerp William P. (Brentwood CA) Mastrototaro John J. (Los Angeles CA) Cheney ; II Paul S. (Beverly Hills CA) Schnabel Nannette M. (Valencia CA), Transcutaneous sensor insertion set.
Gerety, Eugene P.; Strempski, Richard A.; Sardi, Stephen G., Two-dimensional printed code for storing biometric information and integrated off-line apparatus for reading same.
Carter,Scott J.; Flanders,Edward L.; Hannah,Stephen E., Wireless LAN architecture for integrated time-critical and non-time-critical services within medical facilities.
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