OCCLUSION DETECTION TECHNIQUES FOR A FLUID INFUSION DEVICE HAVING A ROTARY PUMP MECHANISM
摘要
A fluid infusion device includes a pump mechanism having a rotor and a stator. The rotor includes a reference surface and a cam element rising from the reference surface. The stator includes a cam element with a stator cam surface. The cam elements cooperate to axially displace the rotor as it rotates. A drive motor is coupled to actuate the rotor to pump medication fluid from a fluid cartridge module to a body, via a subcutaneous conduit. A sensor contact element resides on the reference surface in an area unoccupied by the rotor cam element. A sensing element terminates at the stator cam surface, and cooperates with a detection circuit to detect when the stator cam surface contacts the sensor contact element. The circuit monitors a detection signal obtained from the sensing element to determine an operating condition of the pump mechanism.
申请公布号
WO2016209554(A1)
申请公布日期
2016.12.29
申请号
WO2016US34788
申请日期
2016.05.27
申请人
MEDTRONIC MINIMED, INC.
发明人
ALDERETE, JR., Juan M.;YAVORSKY, Matthew William;PANANEN, Jacob E.;TIECK, R. Marie;VAZQUEZ, Pablo;NG, Anthony C.;BAZARGAN, Afshin