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1. (WO2018146467) CONTROL OF A PUMP DRIVEN BY SHAPE MEMORY ALLOY WIRE
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Pub. No.: WO/2018/146467 International Application No.: PCT/GB2018/050341
Publication Date: 16.08.2018 International Filing Date: 07.02.2018
IPC:
A61M 5/168 (2006.01) ,A61M 5/172 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
5
Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14
Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168
Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
5
Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14
Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168
Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters
172
electrical or electronic
Applicants:
CAMBRIDGE MECHATRONICS LIMITED [GB/GB]; The Westbrook Centre, Building 6 Cambridge CB4 1YG, GB
Inventors:
HOWARTH, James; GB
RICHARDS, David Charles William; GB
FLOURIS, Andreas; GB
Agent:
LALLY, Parminder; GB
Priority Data:
1702038.908.02.2017GB
Title (EN) CONTROL OF A PUMP DRIVEN BY SHAPE MEMORY ALLOY WIRE
(FR) COMMANDE D'UNE POMPE ENTRAÎNÉE PAR UN FIL EN ALLIAGE À MÉMOIRE DE FORME
Abstract:
(EN) A pump includes a pumping arrangement comprising a movable element arranged to pump a fluid and shape memory alloy wires coupled to the movable element for moving the movable element. The resistance of at least one of said one or more shape memory alloy wires is measured. A control system supplies drive signals to the shape memory alloy wires and monitors the measured resistance for verifying the operation of the pumping arrangement. The control system detects abnormal operation of the pumping arrangement on the basis of the measured resistance and detects abnormal resistance to movement of the movable element.
(FR) Une pompe comprend un agencement de pompage comprenant un élément mobile conçu pour pomper un fluide et des fils en alliage à mémoire de forme couplés à l'élément mobile pour déplacer l'élément mobile. La résistance d'au moins un desdits fils en alliage à mémoire de forme est mesurée. Un système de commande fournit des signaux d'entraînement aux fils en alliage à mémoire de forme et surveille la résistance mesurée pour vérifier le fonctionnement de l'agencement de pompage. Le système de commande détecte un fonctionnement anormal de l'agencement de pompage sur la base de la résistance mesurée et détecte une résistance anormale au mouvement de l'élément mobile.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)