Nighttime basal dosing device
First Claim
1. A hub system comprising;
- a hub comprising a fluid reservoir and a pressure actuating device for applying pressure on the fluid pressure reservoir; and
a flow cannula attachable to an infusion base;
wherein, when the flow cannula is attached to the infusion base, the flow cannula is in fluid communication with an infusion cannula of the infusion base;
wherein, when the hub is attached to the infusion base with the flow cannula attached thereon, the fluid reservoir is opened by the flow cannula, and liquid stored in the fluid reservoir is released into the infusion cannula via the flow cannula; and
wherein the pressure actuating device comprises a spring positioned between a cover of the hub and the fluid reservoir.
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Accused Products
Abstract
A basal hub for attaching to an infusion base is disclosed. The hub includes a fluid reservoir and pressure actuating device. A septum portion of the reservoir is configured to be opened by a flow cannula that is in fluid communication with an infusion cannula of the infusion base, when the basal hub is attached to the infusion base. The pressure actuating device applies pressure to the fluid reservoir, such that when the septum portion of the fluid reservoir is pierced by the by the flow cannula, liquid stored in the fluid reservoir is released from the fluid reservoir into the infusion cannula of the infusion base via the flow cannula. The basal hub is configured to deliver a basal dose of insulin during periods of inactivity, such as during sleep time.
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Citations
16 Claims
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1. A hub system comprising;
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a hub comprising a fluid reservoir and a pressure actuating device for applying pressure on the fluid pressure reservoir; and a flow cannula attachable to an infusion base; wherein, when the flow cannula is attached to the infusion base, the flow cannula is in fluid communication with an infusion cannula of the infusion base; wherein, when the hub is attached to the infusion base with the flow cannula attached thereon, the fluid reservoir is opened by the flow cannula, and liquid stored in the fluid reservoir is released into the infusion cannula via the flow cannula; and wherein the pressure actuating device comprises a spring positioned between a cover of the hub and the fluid reservoir. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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2. A hub system comprising:
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a hub comprising a fluid reservoir and a pressure actuating device for applying pressure on the fluid pressure reservoir; and a flow cannula attachable to an infusion base; wherein the pressure actuating device comprises a flexible elastomer membrane comprising a septum and pressurized by the liquid stored in the fluid reservoir; wherein, when the flow cannula is attached to the infusion base, the flow cannula is in fluid communication with an infusion cannula of the infusion base; and wherein, when the hub is attached to the infusion base with the flow cannula attached thereon, the fluid reservoir is opened by the flow cannula piercing through the septum of the flexible elastomer membrane, and liquid stored in the fluid reservoir is released into the infusion cannula via the flow cannula. - View Dependent Claims (3)
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14. A hub configured to attach to an infusion base, the hub comprising;
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a fluid reservoir; a pressure actuating device for applying pressure on the fluid pressure reservoir; and a flow cannula attachable to the infusion base; wherein, when the flow cannula is attached to the infusion base, the flow cannula is in fluid communication with an infusion cannula of the infusion base; wherein, when the hub is attached to the infusion base with the flow cannula attached thereon, the fluid reservoir is opened by the flow cannula, and liquid stored in the fluid reservoir is released into the infusion cannula via the flow cannula; and wherein the pressure actuating device comprises a spring positioned between a cover of the hub and the fluid reservoir.
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15. A hub configured to attach to an infusion base, the hub comprising;
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a fluid reservoir; a pressure actuating device for applying pressure on the fluid pressure reservoir; and a flow cannula attachable to the infusion base; wherein, when the flow cannula is attached to the infusion base, the flow cannula is in fluid communication with an infusion cannula of the infusion base; wherein, when the hub is attached to the infusion base with the flow cannula attached thereon, the fluid reservoir is opened by the flow cannula, and liquid stored in the fluid reservoir is released into the infusion cannula via the flow cannula; wherein the pressure actuating device comprises a flexible elastomer membrane pressurized by the liquid stored in the fluid reservoir; wherein the infusion cannula comprises a flexible catheter; and wherein a cover of the hub comprises a retaining ring, and the flexible membrane is attached to the retaining ring.
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16. A hub configured to attach to an infusion base, the hub comprising;
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a fluid reservoir; a pressure actuating device for applying pressure on the fluid pressure reservoir; and a flow cannula attachable to the infusion base; wherein, when the flow cannula is attached to the infusion base, the flow cannula is in fluid communication with an infusion cannula of the infusion base; wherein, when the hub is attached to the infusion base with the flow cannula attached thereon, the fluid reservoir is opened by the flow cannula, and liquid stored in the fluid reservoir is released into the infusion cannula via the flow cannula; and wherein the flow cannula further comprises a flanged portion that acts as a guide for attaching the flow cannula to an adapter of the base.
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Specification