Back to results
US 2019/0022305 A1Published application
Wearable injection device
AssigneeSubcuject Aps
InventorClaus Schmidt MØLLER
Life of this patent
Estimating the term…
Abstract
The invention relates to a wearable injection device (1) for subcutaneous injection of a therapeutic agent, wherein the dose is injected over a specified period of time after the device is activated.
Claims22
A wearable injection device adapted to be placed on the body of a user and to perform a subcutaneous injection at an injection site on the skin of the user over some time after activation of the device, comprising
- a base plate for interfacing the skin of the user,
- an osmotic actuator
- a trigger button to initiate the injection,
- a cartridge containing a therapeutic agent,
- a needle with a sharpened end, and
- wherein, when the device is activated by pushing the trigger button, the sharpened end of the needle is inserted at the injection site through an opening in the base plate, and
- wherein fluid communication between the injection site and the cartridge is established simultaneous with or after the insertion of the sharpened end of the needle at the injection site.
4 more elements
A wearable injection device, comprising
- a cartridge with a septum and a movable plunger and containing a therapeutic agent to be injected, and
- a needle assembly, the needle assembly further comprising:
- a first part with a needle being adapted to penetrate an injection site on the skin of a user and being movable in a direction mainly perpendicular to the axis of the cartridge,
- a second part with a portion being adapted to penetrate the septum of the cartridge and being movable in a direction mainly parallel to the axis of the cartridge, and
- a spring maintaining the first part in an initial position,
- wherein the needle of the first part in the initial position is hidden within the wearable injection device,
- wherein, during activation of the device, the first part with the needle is moved against the biasing of the spring to penetrate the injection site and the second part is moved to penetrate the septum of the cartridge and to lock the first part in the inserted position, and
- wherein a fluid communication between the first part and the second part is established simultaneous with or after the locking of the first part in the inserted position.
5 more elements
Dependencies are inferred from the claim text.