Systems and methods for delivering microdoses of medication
AssigneeAMF Medical SA
InventorsBenjamin Pruijs, Nathanael Sigg, Antoine Barraud
Life of this patent
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Abstract
Devices, systems, and methods are provided herein for delivering medication (e.g., insulin) via a wearable pump having a patch-style form factor for adhesion to a user's body. The reusable pump may be coupled to a disposable cap housing a microdosing system for delivering precise, repeatable doses of medication to a cannula configured to deliver medication to a target infusion area beneath the user's outer skin layer. The system further may include an applicator for inserting the cannula into the user's skin and/or applying an adhesive pad to the skin.
Claims30
A component for use in a medication infusion device comprising a patch pump configured to be removably adhered to a wearer's skin for delivering doses of medication from a cartridge through a transcutaneous portion, the component comprising:
- a dosing tube configured to receive medication;
- a plurality of levers configured to contact the dosing tube to move a predetermined dose of medication towards the transcutaneous portion;
- and
- a circular cam comprising a shaft oriented in a first plane and a circular plate oriented in a second plane, the circular plate coupled to the shaft and comprising a top surface having one or more raised surfaces extending from the top surface, the one or more raised surfaces configured to move the plurality of levers in a series of steps upon rotation of the shaft,
- wherein rotation of the shaft delivers the predetermined dose of medication towards the wearer.
A method for delivering doses of medication, the method comprising:
- providing a patch pump for transcutaneous delivery of the doses of medication, the patch pump comprising a dosing tube configured to receive the medication from a cartridge, a plurality of levers configured to contact the dosing tube, and a circular cam having a shaft oriented in a first plane and a circular plate oriented in a second plane, the circular plate comprising a top surface having one or more raised surfaces extending from the top surface, the one or more raised surfaces configured to contact the plurality of levers;
- and
- rotating the shaft to cause the circular cam to rotate such that the one or more raised surfaces contact the plurality of levers during rotation to cause the plurality of levers to move in a predefined pattern to selectively open and close sections of the dosing tube to deliver the predetermined dose of medication transcutaneously to the wearer.
Dependencies are inferred from the claim text.