摘要:
The present invention relates to a disposable delivery assembly for a drug delivery device to dispense a liquid medicament, the delivery assembly comprising: - a disposable injector (60) comprising an injection needle(65), a flexible tube (64) and an injector fluid coupling (68), wherein the injection needle (65) is in fluid communication with the fluid coupling (68) via the flexible tube (64), - a disposable cartridge (70) comprising a reservoir (80) at least partially filled with the liquid medicament and comprising a cartridge fluid coupling (90) in fluid communication with the reservoir (80), - wherein the injector (60) and the cartridge (70) are mechanically interconnected in an undeployed configuration (4), in which the injector fluid coupling (68) and the cartridge fluid coupling (90) are disconnected, and - wherein the cartridge (70) is displaceable relative to the injector (60) into a deployed configuration (6), in which the injector fluid coupling (68) and the cartridge fluid coupling (90) are in fluid communication.
摘要:
Disclosed is a needle insertion arrangement (1) with a drive mechanism (9) comprising: a belt (15) frictionally engaging a first roller (10) and a needle retainer (7) with an injection needle (2) fixed to the belt, the first roller being rotatably arranged about an axis (A), a second roller (11) also rotatably arranged about the axis (A), a first spring (13) rotatably biasing the first roller against the second roller, a second spring (14) rotatably biasing the second roller against an arrester (12), the first and the second roller being connected via an internal protrusion (10.2) and arcuate slot (11.2), the two springs (13, 14) biasing the rollers (10, 11) from respective first to respective second angular positions (AP11, AP12, AP21, AP22), and a trigger mechanism (17,20) releasably locking the first and second rollers (10, 11) such that upon pivoting the trigger button (20) in one direction, the first roller drives the belt in one direction to linearly transport the needle retainer towards an extended position, and upon pivoting the trigger button in the other direction, the first roller drives the belt back to retract the needle retainer.
摘要:
The invention relates to a drive mechanism (9) for a needle insertion arrangement (1), the drive mechanism (9) being arranged as a bistable mechanism with at least one pivoted link (10, 11) having two stable end positions (LEP, UEP) and an instable transitional central position (CP), the drive mechanism (9) further comprising a spring (12) biasing the link (10, 11) out of the transitional central position (CP), wherein at least one trigger unit (17, 21) is arranged for moving the link (10, 11) out of at least one of the stable end positions (LEP, UEP) towards and beyond the transitional central position (CP) against the bias of the spring (12).
摘要:
A peristaltic pump (1) comprises a tube (2) to transport a material in a transport direction (4) and one or more piezoelements (3), which are configured to cause a squeezing of the tube (2). Furthermore, a method of transporting material comprises the step of successively actuating the piezoelements (3) along the transport direction (4) of the material and thereby causing a squeezing of the tube (2).
摘要:
A locking interface (1) for locking a cartridge holder (2) onto a main body (15) of a drug delivery device comprises a locking member (6) for locking the cartridge holder (2) onto the main body (15), a user interface (13) operable by a user, a support member (7), on which the locking member (6) and the user interface (13) are located, wherein the locking interface (1) is configured such that a force needed for unlocking the cartridge holder (2) and the main body (15) is reducible by operating the user interface (13).
摘要:
Disclosed is a needle insertion arrangement (1) with a drive mechanism (9) comprising: a belt (15) frictionally engaging a first roller (10) and a needle retainer (7) with an injection needle (2) fixed to the belt, the first roller being rotatably arranged about an axis (A), a second roller (11) also rotatably arranged about the axis (A), a first spring (13) rotatably biasing the first roller against the second roller, a second spring (14) rotatably biasing the second roller against an arrester (12), the first and the second roller being connected via an internal protrusion (10.2) and arcuate slot (11.2), the two springs (13, 14) biasing the rollers (10, 11) from respective first to respective second angular positions (AP11, AP12, AP21, AP22), and a trigger mechanism (17,20) releasably locking the first and second rollers (10, 11) such that upon pivoting the trigger button (20) in one direction, the first roller drives the belt in one direction to linearly transport the needle retainer towards an extended position, and upon pivoting the trigger button in the other direction, the first roller drives the belt back to retract the needle retainer.