MECHANICALLY ACTUATED FLUID INFUSION DEVICE
First Claim
1. A fluid infusion device for delivery of a medication fluid to the body of a user, the fluid infusion device comprising:
- a housing;
a fluid reservoir for the medication fluid, wherein the fluid reservoir is located in the housing;
a dosing mechanism located in the housing and coupled to the fluid reservoir to receive the medication fluid from the fluid reservoir, the dosing mechanism comprising an adjustable fluid chamber that defines a variable dosage volume;
an infusion component coupled to the dosing mechanism to receive the medication fluid from the adjustable fluid chamber; and
a mechanical actuator coupled to the dosing mechanism, wherein operation of the mechanical actuator causes the medication fluid to be expelled from the adjustable fluid chamber to the infusion component.
1 Assignment
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Accused Products
Abstract
A fluid infusion device, for delivery of a medication fluid to the body of a user, includes a housing, a fluid reservoir for the medication fluid, a dosing mechanism, an infusion component, and a mechanical actuator. The fluid reservoir and the dosing mechanism are located in the housing, and the dosing mechanism is coupled to receive the medication fluid from the fluid reservoir. The dosing mechanism has an adjustable fluid chamber that defines a variable dosage volume. The infusion component is coupled to the dosing mechanism to receive the medication fluid from the adjustable fluid chamber. The mechanical actuator is coupled to the dosing mechanism such that operation of the mechanical actuator causes the medication fluid to be expelled from the adjustable fluid chamber to the infusion component.
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Citations
36 Claims
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1. A fluid infusion device for delivery of a medication fluid to the body of a user, the fluid infusion device comprising:
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a housing; a fluid reservoir for the medication fluid, wherein the fluid reservoir is located in the housing; a dosing mechanism located in the housing and coupled to the fluid reservoir to receive the medication fluid from the fluid reservoir, the dosing mechanism comprising an adjustable fluid chamber that defines a variable dosage volume; an infusion component coupled to the dosing mechanism to receive the medication fluid from the adjustable fluid chamber; and a mechanical actuator coupled to the dosing mechanism, wherein operation of the mechanical actuator causes the medication fluid to be expelled from the adjustable fluid chamber to the infusion component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A fluid infusion device for delivery of a medication fluid to the body of a user, the fluid infusion device comprising:
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a housing; a fluid reservoir for the medication fluid, wherein the fluid reservoir is located in the housing, and wherein the medication fluid in the fluid reservoir is maintained under positive pressure; a valve assembly located in the housing and coupled to the fluid reservoir; a dosing mechanism located in the housing and coupled to the fluid reservoir via the valve assembly, the dosing mechanism comprising an adjustable fluid chamber that defines a user-selectable dosage volume, and the dosing mechanism comprising a mechanical actuator; and a fluid conduit coupled to the dosing mechanism via the valve assembly, wherein at least a portion of the fluid conduit is external to the housing when the fluid infusion device is deployed for operation;
wherein;application of an actuation force to the mechanical actuator initiates a fluid delivery operation; removal of the actuation force from the mechanical actuator initiates a refill operation; during the fluid delivery operation, the valve assembly allows the medication fluid to flow from the adjustable fluid chamber into the fluid conduit for delivery to the body of the patient, while inhibiting flow of the medication fluid from the adjustable fluid chamber into the fluid reservoir; and during the refill operation, the valve assembly allows the medication fluid to flow from the fluid reservoir into the adjustable fluid chamber, while inhibiting flow of the medication fluid from the fluid reservoir into the fluid conduit. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A fluid infusion device for delivery of a medication fluid to the body of a user, the fluid infusion device comprising:
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a housing; a fluid reservoir to maintain the medication fluid under positive pressure, wherein the fluid reservoir is located in the housing; a valve assembly located in the housing and coupled to the fluid reservoir; a dosing mechanism located in the housing and coupled to the fluid reservoir via the valve assembly, the dosing mechanism comprising a mechanical actuator to adjust a fluid chamber of the dosing mechanism such that the fluid chamber defines a user-selectable dosage volume; and a fluid delivery conduit coupled to the dosing mechanism via the valve assembly;
wherein;in response to application of force to the mechanical actuator, the medication fluid in the fluid chamber is expelled through the fluid delivery conduit, while the valve assembly inhibits flow of the medication fluid from the fluid chamber to the fluid reservoir; and in response to removal of the force, the mechanical actuator automatically retracts to refill the fluid chamber with the medication fluid from the fluid reservoir, while the valve assembly inhibits flow of the medication fluid from the fluid reservoir to the fluid delivery conduit and inhibits fluid flow from the fluid delivery conduit to the fluid chamber. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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Specification