Infusion device with base portion and durable portion
AssigneeMedtronic MiniMed, Inc.
InventorsSheldon B. Moberg, Ian B. Hanson, Paul S. Cheney, II
Life of this patent
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Abstract
A delivery device includes a durable housing portion and a separable disposable portion that selectively engage and disengage from each other. The disposable housing portion secures to the 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 infusion media are supported by the disposable housing portion for disposal after the prescribed use, while the durable housing portion supports other components such as electronics for controlling delivery of infusion media from the reservoir and a drive device and drive linkage.
Claims18
A delivery device for delivering infusion media to a patient, comprising:
- a base portion configured to be carried by the patient;
- a durable portion that attaches directly to the base portion to form a housing of the delivery device, the durable portion is configured to be separable from the base portion;
- a reservoir receptacle in the base portion for holding a reservoir when the durable portion is attached to the base portion and for holding the reservoir when the durable portion is separated from the base portion, the reservoir receptacle configured to allow removal or replacement of the reservoir from the receptacle when the durable portion is separated from the base portion;
- a drive device housed by the durable portion and configured to be coupled to the reservoir to drive the infusion media from the reservoir and to the patient in a controlled manner, when the base portion is carried by the patient, the reservoir receptacle is holding a reservoir and the durable portion is attached to the base portion;
- and
- wherein the drive device includes a drive linkage component that is arranged to automatically come into contact with a piston plunger of the reservoir as the durable portion mates with the base portion, and to separate from the piston plunger of the reservoir as the durable portion is separated from the base portion.
A method of making a delivery device for delivering infusion media to a patient, comprising:
- configuring a base portion to be carried by the patient;
- providing a durable portion that attaches directly to the base portion to form a housing of the delivery device, the durable portion is configured to be separable from the base portion;
- supporting a reservoir receptacle on the base portion for holding a reservoir when the durable portion is attached to the base portion and for holding the reservoir when the durable portion is separated from the base portion, the reservoir receptacle configured to allow removal or replacement of the reservoir from the receptacle when the durable portion is separated from the base portion;
- housing a drive device in the durable portion in a position to be coupled to the reservoir to drive the infusion media from the reservoir and to the patient in a controlled manner, when the base portion is carried by the patient, the reservoir receptacle is holding a reservoir and the durable portion is attached to the base portion;
- and wherein the drive device includes a drive linkage component that is arranged to automatically come into contact with a piston plunger of the reservoir as the durable portion mates with the base portion, and to separate from the piston plunger of the reservoir as the durable portion is separated from the base portion.
Dependencies are inferred from the claim text.