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Publication Number
US-12194273-B2
Publication Date
2025-01-14
Expiration Date
Abstract
A method for managing refilling a first reservoir of an ambulatory infusion system from a first container that stores a first drug and for managing refilling a second reservoir of the ambulatory infusion system out of a second container that stores a second drug is disclosed. The method includes repeatedly and automatically carrying out a filling volume assessment routine, which involves determining the expected infusion of the first drug and the second drug between the present time tp and the end of an estimation time interval tf and determining if the first reservoir shall be refilled and/or if the second reservoir shall be refilled at tp based on the expected infusion of the first drug and the second drug determined in step (a). Ambulatory infusion device control units and ambulatory infusion devices that are configured for carrying out such method are also disclosed.
Core Innovation
An ambulatory infusion system manages refilling of at least one reservoir from a first container storing a first drug and from a second container storing a second drug by carrying out a filling volume assessment routine. The routine provides the at least one reservoir and uses a processor to determine expected infusion of the first drug and the second drug between a present time tp and an end of an estimation time interval tf.
Based on the determined expected infusion of the first drug and the second drug, the routine determines at tp whether the at least one reservoir shall be refilled with the first drug and/or the second drug. The filling volume assessment routine further includes determining a first estimated filling volume of the at least one reservoir with the first drug at tf and determining if the at least one reservoir shall be refilled with the first drug based on the first estimated filling volume.
The method supports determining expected infusion for multiple drugs and coordinating refills for one or more reservoirs. It includes reservoir architectures in which the at least one reservoir can be a single common reservoir that alternately receives a first drug and a second drug, and the system includes device control elements for refilling scheduling and actuation of valve and reservoir actuator control states for filling and dosing.
Claims Coverage
The document includes one independent method claim (clm-00001). It covers refilling management for at least one reservoir from two drug containers using a filling volume assessment routine that computes expected infusion between tp and tf and makes refill decisions for the first drug and/or the second drug, including a determination based on an estimated filling volume at tf.
Dual-drug reservoir refilling using filling volume assessment routine
A method managing refilling at least one reservoir of an ambulatory infusion system from a first container storing a first drug and from a second container storing a second drug, by carrying out a filling volume assessment routine that provides the at least one reservoir and uses a processor to determine expected infusion of the first drug and the second drug between a present time tp and the end of an estimation time interval tf, determine at tp whether the at least one reservoir shall be refilled with the first drug and/or the second drug, and refill the at least one reservoir with the first drug and/or the second drug when determined at tp.
Refill decision based on first estimated filling volume at tf
The filling volume assessment routine includes determining a first estimated filling volume of the at least one reservoir with the first drug at tf and determining if the at least one reservoir shall be refilled with the first drug based on the first estimated filling volume.
Overall, the claim coverage focuses on making refill decisions for an ambulatory infusion reservoir(s) by computing expected infusion between tp and tf for a first drug and a second drug and performing refilling accordingly, with the routine including a first estimated filling volume determination at tf to drive at least a refill decision for the first drug.
Stated Advantages
Documented Applications
No documented applications found
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