Patch-sized fluid delivery systems and methods
First Claim
1. An apparatus comprising:
- a disposable portion comprising a substrate having flexible membrane material thereon and incorporating therein a fluid channel from a reservoir port to a cannula port and comprising at least one region exposed to the flexible membrane material, wherein the at least one region is a valve region; and
a reusable portion comprising a control assembly having a mechanical assembly that interacts with the at least one region through the membrane material to pump fluid through the fluid channel, the mechanical assembly including a valve actuator operating on the valve region;
wherein the control assembly further includes a coil coupled to a wireless transceiver for conveying radio frequency signals to and from the wireless transceiver.
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.
34 Citations
20 Claims
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1. An apparatus comprising:
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a disposable portion comprising a substrate having flexible membrane material thereon and incorporating therein a fluid channel from a reservoir port to a cannula port and comprising at least one region exposed to the flexible membrane material, wherein the at least one region is a valve region; and a reusable portion comprising a control assembly having a mechanical assembly that interacts with the at least one region through the membrane material to pump fluid through the fluid channel, the mechanical assembly including a valve actuator operating on the valve region; wherein the control assembly further includes a coil coupled to a wireless transceiver for conveying radio frequency signals to and from the wireless transceiver. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12, 14)
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7. An apparatus comprising:
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a disposable portion comprising a substrate having flexible membrane material thereon and incorporating therein a fluid channel from a reservoir port to a cannula port and comprising at least one region exposed to the flexible membrane material, wherein the at least one region is a valve region; and a reusable portion comprising a control assembly having a mechanical assembly that interacts with the at least one region through the membrane material to pump fluid through the fluid channel, the mechanical assembly including a valve actuator operating on the valve region; wherein the substrate includes a dispensing chamber formed in the fluid channel of the substrate, such chamber bounded by flexible membrane material forming a dispensing chamber membrane; wherein the control assembly includes a fluid sensor in communication with the dispensing chamber for measuring fluid flow through the dispensing chamber; wherein the fluid sensor is an acoustic volume sensor; and wherein the acoustic volume sensor includes a loudspeaker, and wherein the loudspeaker is used by the control assembly for both acoustic volume sensing and audible alarm generation.
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8. An apparatus comprising:
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a disposable portion comprising a substrate having flexible membrane material thereon and incorporating therein a fluid channel from a reservoir port to a cannula port and comprising at least one region exposed to the flexible membrane material, wherein the at least one region is a valve region; and a reusable portion comprising a control assembly having a mechanical assembly that interacts with the at least one region through the membrane material to pump fluid through the fluid channel, the mechanical assembly including a valve actuator operating on the valve region; wherein the substrate includes a dispensing chamber formed in the fluid channel of the substrate, such chamber bounded by flexible membrane material forming a dispensing chamber membrane; wherein the control assembly includes a fluid sensor in communication with the dispensing chamber for measuring fluid flow through the dispensing chamber; wherein the fluid sensor is an acoustic volume sensor; and wherein the acoustic volume sensor includes a microphone, and wherein the microphone is used by the control assembly for both acoustic volume sensing and monitoring pump operation.
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13. An apparatus comprising:
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a disposable portion comprising a substrate having flexible membrane material thereon and incorporating therein a fluid channel from a reservoir port to a cannula port and comprising at least one region exposed to the flexible membrane material, wherein the at least one region is a valve region; and a reusable portion comprising a control assembly having a mechanical assembly that interacts with the at least one region through the membrane material to pump fluid through the fluid channel, the mechanical assembly including a valve actuator operating on the valve region; wherein the substrate and the flexible membrane material of the disposable portion constitute a fluidic assembly, and wherein the disposable portion further includes a disposable base into which the fluidic assembly fits, the apparatus further comprising an adhesive pad coupled to a bottom of the disposable base.
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15. An apparatus comprising:
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a disposable portion comprising a substrate having flexible membrane material thereon and incorporating therein a fluid channel from a reservoir port to a cannula port and comprising at least one region exposed to the flexible membrane material, wherein the at least one region is a valve region; a reusable portion comprising a control assembly having a mechanical assembly that interacts with the at least one region through the membrane material to pump fluid through the fluid channel, the mechanical assembly including a valve actuator operating on the valve region; and a temperature sensor disposed in one of the reusable portion and the disposable portion for providing temperature information to the control assembly. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification