Infusion system and components thereof
Inventors
Henderson, David Matthew • Ray, Todd S. • Rosinko, Michael J. • Knodel, Bryan Dale
Assignees
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Publication Number
US-12115338-B2
Publication Date
2024-10-15
Expiration Date
Abstract
Certain embodiments provide multi-medicament infusion systems for preventing the cross-channeling of medicaments. The system may include one or more of an infusion pump, medicament cartridges, cartridge connectors, a multi-channel fluid conduit, and an infusion set. The infusion pump can have an inductively chargeable battery assembly that can be charged by an inductive charging pad.
Core Innovation
The document discloses an infusion system for delivering medicaments to a patient that includes multiple medicaments and an infusion pump with medicament chambers, cartridge connectors, and an infusion set including patient administration tubing. A primary concern addressed is cross-channeling, where incorrect cartridge insertion can lead to medicament delivery through an undesired path. The system uses differentiating cartridge connector and/or cartridge insertion geometries to ensure correct cartridge insertion into the correct pump chambers.
The differentiating cartridge/connector geometries include mechanical engagement features such as lugs and detents, shrouds or skirt rings, snap arms, and quarter-turn twist/locking arrangements, along with tactile and/or visual lock indicators. Cartridge connector fluid-path features include check valve arrangements with threshold/cracking pressure to reduce undesired backflow or leakage and to manage plunger-driven dosing through the cartridge connector fluid pathway.
The document further discloses an inductively chargeable infusion pump that is non-replaceable and water resistant, charged via an inductive charging pad or cradle. The charging pad includes mechanical alignment features such as alignment flanges and spaced openings so the pump housing and its wireless charging interface are positioned for power transmission while cartridge connectors and associated tubes extend through openings for patient medicament delivery.
Additional concepts disclosed include sealing of components using O-rings for water and debris ingress prevention and pressure equalization, and a user interface including a sleep/wake button and charging state indicators such as lights and/or touchscreen display. The inductive charging interfaces are described in connection with wireless charging standards, and a charging cradle is described as having pad openings and alignment flanges to maintain alignment during charging.
Claims Coverage
The partial claim set provided includes three independent claims directed to a charging pad for an infusion pump battery. Across the independent claims, the main inventive features are the use of a wireless charging interface housed in a pad housing and mechanical flange-based docking alignment that creates spaced openings to receive cartridge connectors while exposing different pump housing sides for alignment. The inventive features refine the same overall concept by varying the number and arrangement of flanges/openings, including additional extensions, dimensional constraints, and specific placement/orientation-related details.
Wireless charging interface in a pad housing with flange-defined pump positioning
A charging pad for charging a battery of an infusion pump configured to deliver medicament to a patient, comprising a wireless charging interface configured to transmit power to charge the battery, and a pad housing with the wireless charging interface positioned in the pad housing, wherein a first flange and a second flange extend from the pad housing perpendicular to a surface of the pad housing and are configured to engage first and second sides of the pump housing to position the pump housing relative to the pad housing for wireless power transmission.
Spaced flanges providing openings for cartridge connectors while maintaining wireless alignment
The charging pad where the second flange is spaced from the first flange to provide a first opening positioned between the first flange and the second flange to provide space for a first cartridge connector to be positioned in the first opening with the pump housing aligned relative to the pad housing for the wireless charging interface to transmit power to charge the battery.
Docking area flanges creating first and second openings for first and second cartridge connectors
A charging pad comprising a pad housing with a docking area for a pump housing and a wireless charging interface positioned in the pad housing, wherein first, second, and third flanges extend from the pad housing perpendicular to a surface about the docking area and are configured to engage first, second, and third sides of the pump housing to position the pump housing relative to the docking area, while the third flange is spaced from the first and second flanges to provide a first opening and a second opening for a first cartridge connector and a second cartridge connector to extend through with the pump housing aligned relative to the docking area for wireless charging.
Additional opening exposing a fourth side of the pump housing for alignment
Wherein the first flange is spaced from the second flange to provide a third opening between the first and second flanges to expose a fourth side of the pump housing opposite the third side of the pump housing, with the pump housing positioned for wireless charging using the wireless charging interface positioned in the pad housing.
Across the independent claims, the charging pad innovation is implemented as a wireless charging interface in a pad housing that docks an infusion pump using one or more flanges engaging multiple pump housing sides. Spaced flange arrangements create openings that allow cartridge connectors and associated tubes to extend through while preserving alignment for wireless power transmission and battery charging. The independent claim set also provides for exposing additional pump housing sides via openings to support alignment and docking.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Charging an infusion pump battery using an inductive charging pad/cradle while allowing cartridge connectors to extend through openings for medicament delivery.
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