Disposable infusion device with redundant valved safety
First Claim
1. A wearable infusion device comprising:
- a reservoir that holds a liquid medicament;
an outlet port that delivers the liquid medicament to a patient;
a pump that displaces a volume of the liquid medicament when actuated; and
at least a first valve, a second valve, and a third valve, the valves establishing fluid connection between the reservoir and the pump when in a first valve configuration and establishing fluid connection between the pump and the outlet when in a second valve configuration, wherein at least two of the valves are closed to prevent fluid flow from the reservoir to the outlet when the valves are in the first valve configuration, wherein the first, second, and third valves comprise a shuttle valve.
2 Assignments
0 Petitions
Accused Products
Abstract
A wearable infusion device comprises a reservoir that holds a liquid medicament, an outlet port that delivers the liquid medicament to a patient, a pump that holds a volume of the liquid medicament received from the reservoir and displaces substantially all of the volume of the liquid medicament when actuated, and at least a first valve, a second valve, and a third valve. The valves establish fluid connection between the reservoir and the pump when in a first valve configuration and establish fluid connection between the pump and the outlet when in a second valve configuration. At least two of the valves isolate the outlet from the reservoir when the valves are in the first valve configuration.
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Citations
21 Claims
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1. A wearable infusion device comprising:
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a reservoir that holds a liquid medicament; an outlet port that delivers the liquid medicament to a patient; a pump that displaces a volume of the liquid medicament when actuated; and at least a first valve, a second valve, and a third valve, the valves establishing fluid connection between the reservoir and the pump when in a first valve configuration and establishing fluid connection between the pump and the outlet when in a second valve configuration, wherein at least two of the valves are closed to prevent fluid flow from the reservoir to the outlet when the valves are in the first valve configuration, wherein the first, second, and third valves comprise a shuttle valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wearable infusion device comprising;
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a reservoir that holds a liquid medicament; an outlet port that delivers the liquid medicament to a patient; a pump that holds a volume of the liquid medicament received from the reservoir and displaces substantially all of the volume of the liquid medicament when actuated; and a shuttle valve comprising a first valve, a second valve, and a third valve, the valves establishing fluid connection between the reservoir and the pump when in a first valve configuration and establishing fluid connection between the pump and the outlet when in a second valve configuration, wherein at least two of the valves are closed to prevent fluid flow from the reservoir to the outlet when the valves are in the first valve configuration. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A wearable infusion device comprising:
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a reservoir that holds a liquid medicament; an outlet port that delivers the liquid medicament to a patient; a fluid pathway between the reservoir and the outlet; a pump that pumps the liquid medicament between the reservoir and the outlet when actuated; at least a first valve, a second valve, and a third valve, the valves being movable between a first configuration and a second configuration, such that when the valves are in the first configuration the fluid pathway between the reservoir and the pump is open and the fluid pathway between the pump and the outlet is closed, and when the valves are in the second configuration, the fluid pathway between the reservoir and the pump is closed and the fluid pathway between the pump and the outlet is open, and wherein at least two of the valves are closed to prevent fluid flow from the reservoir to the outlet when the valves are in the first configuration. - View Dependent Claims (19, 20, 21)
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Specification