PRESSURE VENTED FLUID RESERVOIR HAVING A MOVABLE SEPTUM
First Claim
1. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising:
- a main body section that defines a fluid chamber for the medication fluid;
a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening; and
a septum movably coupled to the fluid delivery port, the septum being movable between a sealed position where the septum forms a circumferential seal around the port opening, and a vented position that permits fluid to flow out of the fluid delivery port via the port opening.
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Accused Products
Abstract
Disclosed herein is a fluid infusion device of the type that delivers medication fluid to the body of a patient. The device includes or cooperates with a fluid reservoir, and the device has a sealing assembly to receive and form a fluid seal with the fluid reservoir. A retractable sealing element surrounding a hollow fluid delivery needle may be used to seal a port of the fluid reservoir. The port may include a pressure vent that is sealed by the retractable sealing element. In one variation, the reservoir includes a moving valve sleeve that holds a septum. The septum moves to allow the reservoir to vent, and to form a seal with the port when the needle pierces the septum. In another variation, the device includes a needleless sealing assembly. In yet other variations, the device uses a needled fluid reservoir.
4 Citations
18 Claims
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1. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising:
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a main body section that defines a fluid chamber for the medication fluid; a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening; and a septum movably coupled to the fluid delivery port, the septum being movable between a sealed position where the septum forms a circumferential seal around the port opening, and a vented position that permits fluid to flow out of the fluid delivery port via the port opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15, 16, 17, 18)
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9. A fluid reservoir for a fluid infusion device that delivers a medication fluid to a body, the fluid reservoir comprising:
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a main body section that defines a fluid chamber for the medication fluid; a fluid delivery port coupled to and extending from the main body section, the fluid delivery port comprising a fluid conduit that communicates with the fluid chamber, and the fluid delivery port terminating at a port opening; a valve sleeve movably coupled to the fluid delivery port and having a septum maintained therein such that the septum translates, relative to the fluid delivery port and in concert with the valve sleeve, between a sealed position where the septum forms a circumferential seal around the port opening, and a vented position that permits fluid to flow out of the fluid delivery port via the port opening. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification