Patch-sized fluid delivery systems and methods
AssigneeDEKA Products Limited Partnership
InventorLarry B. Gray
Life of this patent
Estimating the term…
Abstract
A patch-sized fluid delivery device may include a reusable portion and a disposable portion. The disposable portion may include components that come into contact with the fluid, while the reusable portion may include only components that do not come into contact with the fluid. Redundant systems, such as redundant controllers, power sources, motor actuators, and alarms, may be provided. Alternatively or additionally, certain components can be multi-functional, such a microphones and loudspeakers that may be used for both acoustic volume sensing and for other functions and a coil that may be used as both an inductive coupler for a battery recharger and an antenna for a wireless transceiver. Various types of network interfaces may be provided in order to allow for remote control and monitoring of the device.
Claims52
A delivery device for delivering an infusion medium to a user, the device comprising:
- a first housing portion adapted to be secured to a user;
- a second housing portion configured to be selectively engaged with and disengaged from the first housing portion to allow disposal of the first housing portion without disposing of the second housing portion, the first housing portion having an enclosed interior volume;
- a pumping assembly;
- a shape-memory alloy operatively connected to the pumping assembly, to selectively move the pumping assembly;
- a dispensing assembly downstream from the pumping assembly, and in fluid communication with the reservoir by a flow line, the dispensing device comprising:
- a variable volume metering chamber;
- and
- a sensor;
- and
- an exit assembly downstream from the dispensing assembly, the exit assembly in fluid communication with a pump exit, wherein the exit assembly further comprising a first one-way valve wherein the first one-way valve inhibits fluid flow from the dispensing assembly to the pump exit.
A delivery device for delivering an infusion medium to a user, the device comprising:
- a first housing portion adapted to be secured to a user;
- a second housing portion configured to be selectively engaged with and disengaged from the first housing portion to allow disposal of the first housing portion without disposing of the second housing portion, the first housing portion having an enclosed interior volume;
- a pumping assembly;
- a shape-memory alloy operatively connected to the pumping assembly, to selectively move the pumping assembly;
- a dispensing assembly downstream from the pumping assembly, and in fluid communication with the reservoir by a flow line, the dispensing device comprising:
- a variable volume metering chamber;
- and
- a sensor;
- and
- an exit assembly downstream from the dispensing assembly, the exit assembly in fluid communication with a pump exit, wherein the exit assembly comprising a high-impedance flow restrictor.
A delivery device for delivering an infusion medium to a user, the device comprising:
- a first housing portion adapted to be secured to a user;
- a second housing portion configured to be selectively engaged with and disengaged from the first housing portion to allow disposal of the first housing portion without disposing of the second housing portion, the first housing portion having an enclosed interior volume;
- a pumping assembly;
- a shape-memory alloy operatively connected to the pumping assembly, to selectively move the pumping assembly;
- a dispensing assembly downstream from the pumping assembly, and in fluid communication with the reservoir by a flow line, the dispensing device comprising:
- a variable volume metering chamber;
- and
- a sensor;
- a reservoir, supported by the first housing portion, having an interior volume for containing an infusion medium, wherein the flow line connecting the interior volume of the reservoir to the dispensing assembly;
- and
- an exit assembly downstream from the dispensing assembly, the exit assembly in fluid communication with a pump exit.
A delivery device for delivering an infusion medium to a user, the device comprising:
- a first housing portion adapted to be secured to a user;
- a second housing portion configured to be selectively engaged with and disengaged from the first housing portion to allow disposal of the first housing portion without disposing of the second housing portion, the first housing portion having an enclosed interior volume;
- a pumping assembly;
- a shape-memory alloy operatively connected to the pumping assembly, to selectively move the pumping assembly;
- a dispensing assembly downstream from the pumping assembly, and in fluid communication with the reservoir by a flow line, the dispensing device comprising:
- a variable volume metering chamber;
- and
- a sensor;
- a reservoir having an interior volume for containing an infusion medium, wherein the flow line connecting the interior volume of the reservoir to the dispensing assembly;
- a second one-way valve downstream to the reservoir and upstream to the dispensing assembly;
- and
- an exit assembly downstream from the dispensing assembly, the exit assembly in fluid communication with a pump exit.
A delivery device for delivering an infusion medium to a user, the device comprising:
- a first housing portion adapted to be secured to a user;
- a second housing portion configured to be selectively engaged with and disengaged from the first housing portion to allow disposal of the first housing portion without disposing of the second housing portion, the first housing portion having an enclosed interior volume;
- a pumping assembly;
- a shape-memory alloy operatively connected to the pumping assembly, to selectively move the pumping assembly;
- a dispensing assembly downstream from the pumping assembly, and in fluid communication with the reservoir by a flow line, the dispensing device comprising:
- a variable volume metering chamber;
- and
- a sensor;
- and
- an exit assembly downstream from the dispensing assembly, the exit assembly in fluid communication with a pump exit, wherein the exit assembly further comprising a first one-way valve wherein the first one-way valve inhibits fluid flow from the dispensing assembly to the pump exit, wherein the one-way valve comprises a duckbill valve structure.
Dependencies are inferred from the claim text.