PATCH-SIZED FLUID DELIVERY SYSTEMS AND METHODS
1 Assignment
0 Petitions
Accused Products
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.
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Citations
256 Claims
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1-178. -178. (canceled)
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179. A delivery device for delivering an infusion medium to a user, the device comprising:
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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 drive shaft supported by the second housing portion, for movement in a generally linear dimension; a drive device operatively connected to the drive shaft, to selectively move the drive shaft in the generally linear dimension; and a pump device supported by the first housing portion, the pump device comprising; a housing provided with a piston channel having a generally linear, longitudinal axis, an inlet port extending to the piston channel and configured for connection to a reservoir, a piston chamber in fluid flow communication with the channel and an outlet port in fluid flow communication with the piston channel and configured for connection in fluid flow communication with an injection site; a piston located in the piston channel and having a surface for receiving a drive force from the drive shaft when the first housing portion and the second housing portion are engaged, wherein the piston is moveable with movement of the drive shaft along the longitudinal axis of the piston channel between fill and dispense positions, such that; in the fill position, the piston is moved to a position to allow fluid flow communication through the inlet port and into the piston channel and piston chamber; and in the dispense position, the piston is moved to a position to obstruct fluid flow communication through the inlet port and to reduce the volume of the piston chamber to force fluid in the piston chamber out of the outlet port. - View Dependent Claims (180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192)
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193. A pump device for conveying an fluidic medium, the pump device comprising:
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a housing provided with a piston channel having a generally linear, longitudinal axis, an inlet port extending to the piston channel and configured for connection to a reservoir, a piston chamber in fluid flow communication with the channel and an outlet port in fluid flow communication with the piston channel and configured for connection in fluid flow communication with an injection site; and a piston located in the piston channel and having a surface for receiving a drive force from a drive shaft; wherein the piston is moveable along the longitudinal axis of the piston channel between fill and dispense positions upon receiving a force from a drive shaft, such that; in the fill position, the piston is moved to a position to allow fluid flow communication through the inlet port and into the piston channel and piston chamber; and in the dispense position, the piston is moved to a position to obstruct fluid flow communication through the inlet port and to reduce the volume of the piston chamber to force fluid in the piston chamber out of the outlet port. - View Dependent Claims (194, 195, 196, 197, 198)
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199. A method for delivering an infusion medium to a user, the method comprising:
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providing a first housing portion and a second housing portion; providing the first housing portion and the second housing portion with connection structure to allow the first housing portion and the second housing portion to be selectively engaged with each other for operation and disengaged from each other to allow disposal of the first housing portion without disposing of the second housing portion; supporting a drive shaft with the second housing portion, for movement in a generally linear dimension; operatively connecting a drive device to the drive shaft, o selectively move the drive shaft in the generally linear dimension; supporting a pump housing with the first housing portion, the pump housing having a piston channel having a generally linear, longitudinal axis; providing an inlet port extending to the piston channel and configured for connection to a source of fluidic medium; providing an outlet port in fluid flow communication with the piston channel; providing a piston having a surface for receiving a drive force from the drive shaft when the first housing portion and the second housing portion are engaged for operation; and supporting the piston in the piston channel for movement along the longitudinal axis of the piston channel between fill and dispense positions upon receiving a force from a drive shaft, such that; in the fill position, the piston is moved to a position to allow fluid flow communication through the inlet port and into the piston channel and piston chamber; and in the dispense position, the piston is moved to a position to obstruct fluid flow communication through the inlet port and to reduce the volume of the piston chamber to force fluid in the piston chamber out of the outlet port. - View Dependent Claims (200, 201, 202, 203, 204, 205)
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206. A delivery device for delivering an infusion medium to a user, the device comprising:
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a disposable first housing portion adapted to be secured to a user; a durable second housing portion configured to be selectively engaged with and disengaged from the disposable first housing portion to allow disposal of the disposable housing portion without disposing of the durable housing portion, the durable second housing portion having an enclosed interior volume; a drive shaft supported by the durable second housing portion, for movement in a first direction and in a second direction opposite to the first direction; a drive device operatively connected to the drive shaft, to selectively move the drive shaft in the first direction; and a pump device supported by the disposable first housing portion, the pump device comprising; a piston chamber having an interior including a fluid portion having a variable volume for containing an infusion medium; an inlet port in fluid flow communication with the interior volume of the piston chamber, the inlet port configured for connection with a reservoir, for fluid flow communication with the reservoir; an outlet port in fluid flow communication with interior volume of the piston chamber; a push plate supported for back-and-forth movement in a first direction and in a second direction opposite to the first direction, the push plate being arranged in a position for operative engagement with the drive shaft for movement of the push plate in the first direction as the drive shaft is moved in the first direction, and for allowing movement of the push plate in the second direction as the drive shaft is moved in the second direction, when the disposable first housing portion and the durable second housing portion are engaged with each other; a piston head moveable within the piston chamber between a retracted position and an active position to vary the volume of the fluid portion of the piston chamber, the piston head being operatively coupled in a fixed relation to the push plate, for movement from the retracted position to the active position with movement of the push plate in the first direction; wherein, when the piston chamber contains infusion fluid, the volume of the fluid portion of the piston chamber is reduced as the piston head is moved from the retracted position to the active position to provide a pressure within the piston chamber to force the infusion fluid from the fluid portion of the piston chamber and through the outlet port; wherein, the volume of the fluid portion of the piston chamber is increased as the piston head is moved from the retracted position to the active position to provide a pressure within the piston chamber to draw infusion fluid into the fluid portion of the piston chamber, through the inlet port, when the inlet port is connected in fluid flow communication with a reservoir. - View Dependent Claims (207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220)
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221. A pump device for conveying an fluidic medium, the pump device comprising:
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a piston chamber having an interior including a fluid portion having a variable volume for containing a fluidic medium; an inlet port in fluid flow communication with the interior volume of the piston chamber, the inlet port configured for connection with a source of fluidic medium, for receiving fluid medium from the source into the interior volume of the piston chamber; an outlet port in fluid flow communication with interior volume of the piston chamber; a push plate supported for back-and-forth movement in a first direction and in a second direction opposite to the first direction, the push plate being arranged in a position for operative engagement with a drive shaft for movement of the push plate in the first direction as the drive shaft is moved in the first direction, and for allowing movement of the push plate in the second direction as the drive shaft is moved in the second direction; a piston head moveable within the piston chamber between a retracted position and an active position to vary the volume of the fluid portion of the piston chamber, the piston head being operatively coupled in a fixed relation to the push plate, for movement from the retracted position to the active position with movement of the push plate in the first direction; wherein, when the piston chamber contains infusion fluid, the volume of the fluid portion of the piston chamber is reduced as the piston head is moved from the retracted position to the active position to provide a pressure within the piston chamber to force the infusion fluid from the fluid portion of the piston chamber and through the outlet port; wherein, the volume of the fluid portion of the piston chamber is increased as the piston head is moved from the retracted position to the active position to provide a pressure within the piston chamber to draw a fluidic medium into the fluid portion of the piston chamber, through the inlet port, when the inlet port is connected in fluid flow communication with the source of fluidic medium. - View Dependent Claims (222, 223)
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224. A method of making a pump device for conveying a fluidic medium, the method comprising:
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providing a piston chamber having an interior including a fluid portion having a variable volume for containing a fluidic medium; providing an inlet port in fluid flow communication with the interior volume of the piston chamber, and configuring the inlet port for connection with a source of fluidic medium, for receiving fluid medium from the source into the interior volume of the piston chamber; providing an outlet port in fluid flow communication with interior volume of the piston chamber; supporting a push plate for back-and-forth movement in a first direction and in a second direction opposite to the first direction, and arranging the push plate in a position for operative engagement with a drive shaft for movement of the push plate in the first direction as the drive shaft is moved in the first direction, and for allowing movement of the push plate in the second direction as the drive shaft is moved in the second direction; supporting a piston head for movement within the piston chamber between a retracted position and an active position to vary the volume of the fluid portion of the piston chamber, and operatively coupling the piston head in a fixed relation to the push plate, for movement from the retracted position to the active position with movement of the push plate in the first direction; wherein, when the piston chamber contains infusion fluid, the volume of the fluid portion of the piston chamber is reduced as the piston head is moved from the retracted position to the active position to provide a pressure within the piston chamber to force the infusion fluid from the fluid portion of the piston chamber and through the outlet port; wherein, the volume of the fluid portion of the piston chamber is increased as the piston head is moved from the retracted position to the active position to provide a pressure within the piston chamber to draw a fluidic medium into the fluid portion of the piston chamber, through the inlet port, when the inlet port is connected in fluid flow communication with the source of fluidic medium. - View Dependent Claims (225, 226)
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227. A delivery device for delivering an infusion medium to a user, the device comprising:
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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 second housing portion having an enclosed interior volume; a drive shaft supported by the second housing portion, for movement in a generally linear dimension; a drive device operatively connected to the drive shaft, to selectively move the drive shaft in the generally linear dimension; and a pump device supported by the first housing portion, the pump device comprising; a housing provided with a piston channel having a generally linear, longitudinal axis, an inlet port in fluid flow communication with the channel and configured for connection to a reservoir, and an outlet port in fluid flow communication with the channel and configured for connection in fluid flow communication with an injection site; a piston located in the piston channel and having a first piston section and a second piston section coupled together for limited movement, relative to each other, the second piston section having a surface for operable engagement with the drive shaft when the second housing portion and first hosing portion are engaged, wherein the piston is moveable with movement of the drive shaft along the longitudinal axis of the piston channel between fill, pull and dispense positions, such that; in the fill position, the first and second piston sections are separate to form a chamber having volume between the first and second piston sections, and the chamber is aligned in fluid flow communication with the inlet port; in the pull position, the first and second piston sections are separated and the chamber formed between the first and second piston sections is located within the channel, between the inlet port and the outlet port, out of fluid flow communication with the inlet port and the outlet port; in the dispense position, the chamber between the first and second piston sections is aligned in fluid flow communication with the outlet port. - View Dependent Claims (228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242)
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243. A pump device for conveying a fluidic medium, the pump device comprising:
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a housing provided with a piston channel having a generally linear, longitudinal axis, an inlet port in fluid flow communication with the channel and configured for connection to a source of fluidic medium, and an outlet port in fluid flow communication with the channel; and a piston located in the piston channel and having a first piston section and a second piston section coupled together for limited movement, relative to each other, the second piston section having a surface for receiving a drive force from a drive shaft; wherein the piston is moveable along the longitudinal axis of the piston channel between fill, putt and dispense positions, when a drive force is received from a drive shaft such that; in the fill position, the first and second piston sections are separate to form a chamber having volume between the first and second piston sections, and the chamber is aligned in fluid flow communication with the inlet port; in pull positions, the first and second piston sections are separated and the chamber formed between the first and second piston sections is located within the channel, between the inlet port and the outlet port, out of fluid flow communication with the inlet port and the outlet port; and in the dispense position, the chamber between the first and second piston sections is aligned in fluid flow communication with the outlet port. - View Dependent Claims (244, 245, 246, 247, 248, 249)
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250. A method of making a pump device for conveying a fluidic medium, the method comprising:
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providing a piston channel in a housing, where the piston channel has a generally linear, longitudinal axis; providing an inlet port in fluid flow communication with the piston channel and configured for connection to a source of fluidic medium; providing an outlet port in fluid flow communication with the piston channel; providing a piston having a first piston section and a second piston section coupled together for limited movement, relative to each other, the second piston section having a surface for receiving a drive force from a drive shaft; and supporting the piston within the piston channel for movement along the longitudinal axis of the piston channel between fill, pull and dispense positions, when a drive force is received from a drive shaft such that; in the fill position, the first and second piston sections are separate to form a chamber having volume between the first and second piston sections, and the chamber is aligned in fluid flow communication with the inlet port; in pull positions, the first and second piston sections are separated and the chamber formed between the first and second piston sections is located within the channel, between the inlet port and the outlet port, out of fluid flow communication with the inlet port and the outlet port; and in the dispense position, the chamber between the first and second piston sections is aligned in fluid flow communication with the outlet port. - View Dependent Claims (251, 252, 253, 254, 255, 256)
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Specification