Becton Dickinson and Company Limited

Joseph Iskandar

Alessandro Egidio Pizzochero

J Richard Gyory

Charles George Hwang

Russell S Cole

John Prudden

Christopher Kovalchick

Gail Marie Siewiorek

Nir Swenson

Justin David Cumming

Andrew Allegretti

Jeffrey Reed

Kurt Maw

Mojtaba Kashef

Ling Zheng

Uzair Siddiqui

Kepei Sun

Elizabeth Gurin

Jinyan Li

A system and method is provided for detecting fluid low-volume and occlusion in a device using force sensing resistor (FSR) sensor. One or more force sensing resistors are positioned in communication with a fluid channel at one or more of a pump intake and pump outlet to detect pressure in the fluid channel. The pressure is detected through communication with the force sensing resistor and indicates an irregular system condition including but not limited to, fluid low-volume level and occlusion. Also provided are a fluid flow sensor (e.g., FSR or MEMS sensor) disposed relative to an embedded fluid channel in the base of a wearable medicine delivery pump.

Force sensing resistor for liquid low-volume detection and occlusion sensing and methods and apparatuses for flow sensing along fluid path in fluid delivery device

A technical solution for monitoring operation of a medical delivery device such as an infusion pump for occlusion is provided that employs sensing pump motor current and monitoring average motor current difference as between dispense and aspirate strokes in a pump cycle. The solution can be implemented alone or in combination with other occlusion sensing methods that use one or more of pump measurement data such as pump stroke duration (e.g., duration of aspirate stroke or dispense stroke in a rotational metering-type pump or a reciprocating-type pump), end-stop or limit switch activation, and duration difference between aspirate and dispense strokes to detect occlusion.

Systems, apparatuses and methods for occlusion detection using pump operation measurement

A filling member () in a medicament delivery device (), the filling member () includes a first conduit () that fluidly communicates with a reservoir () and a second conduit () that fluidly communicates with a pump () and with the first conduit (), wherein the filling member () provides two-way medicament flow that enters the reservoir () via the first conduit (), exits the reservoir () into the first conduit () and the second conduit (), and exits the second conduit () to the pump (). The reservoir () includes a reservoir tube (A) having one end that is formed with the reservoir (), and the reservoir tube (A) having another end that is press fit to the filling member () to establish fluid communication with the reservoir ().

Fluid interconnection scheme between reservoir, pump and filling member

Wearable drug delivery device

Wearable drug delivery device baseplate

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Allston, MA, United States of America

Joseph Iskandar