Systems and methods for delivering microdoses of medication
AssigneeTandem Diabetes Care Switzerland Sàrl
InventorsPierre Fridez, Nathanael Sigg, Christophe Satorre
Life of this patent
Estimating the term…
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.
Claims18
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 patch pump comprising a pump housing;
- a pusher disposed within the pump housing;
- a pump motor disposed within the pump housing and coupled to the pusher, the pump motor configured to move the pusher to move the medication in the cartridge towards the transcutaneous portion;
- and
- a sensor configured to sense a position of the pusher within the pump housing to indicate a state of the patch pump, and
- further comprising a controller disposed within the pump housing and operatively coupled to the pump motor and the sensor, the controller configured to determine that a battery within the patch pump is charged to a power level sufficient to empty the medication from the cartridge based on the position of the pusher sensed by the sensor.
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 patch pump comprising a pump housing;
- a pusher disposed within the pump housing;
- a pump motor disposed within the pump housing and coupled to the pusher, the pump motor configured to move the pusher to move the medication in the cartridge towards the transcutaneous portion;
- and
- a sensor configured to sense a position of the pusher within the pump housing to indicate a state of the patch pump,
- wherein a component of the pusher, in a full position, contacts a contact sensor,
- wherein the component of the pusher, after contacting the contact sensor, moves to a home position wherein the pusher does not contact the contact sensor, and
- wherein a controller is configured to unlock the pump housing from a cap housing of the patch pump if the controller determines that the patch pump is in the home position.
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 patch pump comprising a pump housing;
- a pusher disposed within the pump housing;
- a pump motor disposed within the pump housing and coupled to the pusher, the pump motor configured to move the pusher to move the medication in the cartridge towards the transcutaneous portion;
- and
- a sensor configured to sense a position of the pusher within the pump housing to indicate a state of the patch pump,
- further comprising a cap configured to be locked to the pump housing during delivery of the doses of medication, wherein the position of the pusher indicates that the cap is permitted to be unlocked from the pump housing for removal of the cartridge.
Dependencies are inferred from the claim text.