Wearable infusion device
First Claim
Patent Images
1. A wearable infusion device comprising a component that causes a piston to move an incremental distance to cause the device to dispense a dose of medicament from a reservoir.
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Accused Products
Abstract
A wearable infusion device comprises a component that causes a piston to move an incremental distance to cause the device to dispense a dose of medicament from a reservoir.
42 Citations
25 Claims
- 1. A wearable infusion device comprising a component that causes a piston to move an incremental distance to cause the device to dispense a dose of medicament from a reservoir.
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5. A wearable infusion device comprising:
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a reservoir to hold more than one dose of a medicament; a piston moveable to cause a dose of the medicament to be dispensed; a drive component to cause the piston to move; and an actuation component to limit the distance that the piston moves for each dose dispensed to control the size of the dose. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A wearable infusion device comprising:
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a reservoir for holding fluid to be dispensed, the reservoir defined by a fixed wall and a side wall extending away from the fixed wall; a piston disposed in the reservoir and movable relative to the fixed wall to exert pressure on the fluid; a drive component that engages the piston and is operable to move the piston toward the fixed wall, the drive component positioned relative to the piston such that the side wall lies between the drive component and the piston; and an output interface in fluid communication with the reservoir. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A wearable infusion system, comprising:
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a cannula subassembly including a cannula for delivering a medicament beneath a patient'"'"'s skin; and a wearable infusion device for providing the medicament to the cannula assembly, the device including; a reservoir to hold more than one dose of the medicament, a piston moveable to cause a dose of the medicament to be dispensed, a drive component to cause the piston to move, an actuation component to limit the distance that the piston moves for each dose dispensed to control the size of the dose, and an output interface coupled to the cannula subassembly and in fluid communication with the reservoir and the cannula.
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21. A method for dispensing a medicament from a wearable infusion device, comprising:
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holding the medicament in a reservoir defined by a fixed wall, a side wall extending from the fixed wall and a piston; exerting pressure on the medicament in the reservoir by moving a drive component to move the piston an incremental distance toward the fixed wall, wherein the drive component is positioned relative to the piston such that the side wall lies between the drive component and the piston; and allowing medicament in the reservoir to flow through an output interface to reduce the pressure on the medicament in the reservoir. - View Dependent Claims (22, 23, 24, 25)
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Specification