CARTRIDGE FOR FLUID SUPPLY TO TRANSMERMAL DRUG DELIVERY DEVICE (VERSIONS) Russian patent published in 2017 - IPC A61M37/00 A61M5/24 

FIELD: medicine.

SUBSTANCE: cartridge for fluid supply to the transdermal drug delivery device comprises a casing that at least partially forms an internal space for storage of the fluid to be delivered by the transdermal drug delivery device, the first and second openings into the inner space of the casing, a self-sealing element that at least partially covers the first opening, and a movable member that at least partially covers the second opening. At that, the first and second openings are located adjacent to the opposite first and second ends of the casing, respectively. At least a portion of the movable member is configured to be pushed into the inner space of the casing to increase the pressure in its inner space. According to the second version, the cartridge for fluid supply to the transdermal drug delivery device comprises a casing comprising a substantially concave wall. The substantially concave wall at least partially forms an inner space of the casing for storage of the fluid to be delivered by the transdermal drug delivery device. In the casing, opposite first and second openings are formed at least partially into the inner space of the casing. The second opening is located adjacent to the substantially concave wall. The cartridge also comprises a self-sealing element that at least partially covers the first opening and a deformable member that at least partially covers the second opening. The deformable element is designed to be pushed into the inner space of the casing and at least partially adheres to the concave wall to increase the pressure in the interior of the casing.

EFFECT: cartridges provide a new balance of properties of transdermal drug delivery devices.

30 cl, 24 dwg