Systems and methods allowing for reservoir filling and infusion medium delivery
First Claim
1. A system, comprising:
- an infusion medium container for holding an infusion medium;
a plunger disposed at least partially within the infusion medium container, the plunger being moveable within the infusion medium container, the plunger comprising;
a plunger body for forcing the infusion medium out of the infusion medium container, the plunger body configured to have an opening; and
a plunger septum capable of being pierced to allow the infusion medium to flow out of the infusion medium container through the opening in the plunger body;
a reservoir for holding the infusion medium, the reservoir having a port for receiving the infusion medium; and
a transfer guard having a transfer element for piercing the plunger septum and for providing a path to allow the infusion medium to be transferred from the infusion medium container to the reservoir.
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Accused Products
Abstract
A system includes a durable portion with a durable housing and a separable disposable portion with a disposable housing that selectively engage with and disengage from each other. The disposable housing secures to a patient and may be disposed of after it has been in use for a prescribed period. Components that normally come into contact with a patient or with an infusion medium may be part of the disposable portion to allow for disposal after a prescribed use. A reservoir for holding the infusion medium may be part of the disposable portion, and may be supported by the disposable housing. The durable portion may include other components such as electronics for controlling delivery of the infusion medium from the reservoir, and a drive device including a motor and drive linkage.
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Citations
19 Claims
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1. A system, comprising:
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an infusion medium container for holding an infusion medium; a plunger disposed at least partially within the infusion medium container, the plunger being moveable within the infusion medium container, the plunger comprising; a plunger body for forcing the infusion medium out of the infusion medium container, the plunger body configured to have an opening; and a plunger septum capable of being pierced to allow the infusion medium to flow out of the infusion medium container through the opening in the plunger body; a reservoir for holding the infusion medium, the reservoir having a port for receiving the infusion medium; and a transfer guard having a transfer element for piercing the plunger septum and for providing a path to allow the infusion medium to be transferred from the infusion medium container to the reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for using a system, the system comprising an infusion medium container for holding an infusion medium, a plunger that is disposed at least partially within the infusion medium container, a reservoir, and a transfer guard, the plunger having a plunger body and a plunger septum, the plunger body allowing for forcing the infusion medium out of the infusion medium container, the plunger body configured to have an opening, the plunger septum capable of being pierced to allow the infusion medium to flow through the opening in the plunger body, the transfer guard having a transfer element, the method comprising:
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piercing the plunger septum with the transfer element of the transfer guard; and moving the infusion medium container so as to cause the infusion medium to be transferred from the infusion medium container to the reservoir through the opening in the plunger body. - View Dependent Claims (17, 18, 19)
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Specification