摘要:
The present invention relates to a pen injecting device for delivering a liquid medicament comprising a pen body, a needle received in a first end of the pen body, an inner needle shield removeably located over the needle to enclose the needle, an outer needle shield removeably located over the inner needle shield to enclose the inner needle shield and a pen cap removeably attached to the first end of the pen body so as to enclose the outer needle shield. The pen cap comprises an arm depending from an inside surface of the cap and extending away from the first end of the pen body toward the inner and outer needle shields, the arm having a sharp end so that, as the cap is removed from the body, the sharp end of the arm grips the inner or outer needle shield to retain it in the cap and expose the needle.
摘要:
The present invention relates to a housing of a drug delivery device comprising a cylindrically shaped body (12) to accommodate a drive mechanism (13) and comprising a cartridge holder (14) to accommodate a cartridge (16) containing a dispensable medicament, the housing further comprising a connector assembly (20) to releasably interconnect body (12) and cartridge holder (14), the connector assembly (20) comprising: a tangentially extending recessed structure (30) with a tangential opening (31) to receive a radially extending pin (26), wherein the recessed structure (30) is fastened to one of body (12) and cartridge holder (14) and wherein the pin (26) is fastened to the other one of body (12) and cartridge holder (14), a release member (40) having a retaining portion (42) to cover the opening (31) in a locking configuration (60), wherein the release member (40) is displaceable in tangential direction (3) against a restoring force away from the recessed structure (30) into a release configuration (62), in which the opening (31) is uncovered to tangentially remove the pin (26) therefrom.
摘要:
A spring assisted drug delivery device (80, 90) comprising: a housing (4); a piston rod (22) having a longitudinal axis, a distal end and a proximal end that is axially movable in a distal direction relative to the housing (4), a mid-body (20) fixed inside of the housing (4) and coupled to the piston rod (22) in such a manner that the piston rod (22) is axially movable in a distal direction relative to the mid-body (20), and wherein a preloaded spring (82, 92) is operatively coupled to the piston rod (22) in such a manner that the spring (82, 92) is released and the stored force in the spring (82, 92) supports driving the piston rod (22) in the distal direction during a dose administration step.
摘要:
An assembly (1) for a drug delivery device (1) is provided, the assembly (1) comprising a housing (4), and a lead screw (22) having a longitudinal axis, a distal end and a proximal end, the lead screw (22) being rotatably fixed during dose setting and dose delivery and axially movable in a distal direction relative to the housing (4), the lead screw (22) further including a thread (33). The assembly (1) further comprises a drive nut (23) threadedly engaged with and screwable along the lead screw thread (33)and a dial link (25) connected with the drive nut (23) and axially movable and rotatably fixed relative to the drive nut (23), where the dial link (25) comprises a first portion of a feedback ratchet (80, 81). The assembly is configured such that, during dose setting, the dial link (25) is moved relative to the housing (4) a first axial distance from a home position and the drive nut (23) is moved along the thread (33) a second axial distance and wherein,during dose delivery, the dial link (25) is moved relative to the housing (4) back toward the home position, and the drive nut (23) and therewith the lead screw (22) is advanced axially, and where the assembly comprises a second portion of the feedback ratchet (80, 81), wherein the second portion is arranged and configured to engage the first portion such that, during dose delivery, the contact between said portions generates a feedback signal.
摘要:
The present disclosure provides for a drive assembly for a drug delivery device. The drive assembly comprises a housing; a piston rod having a longitudinal axis, a distal end and a proximal end and being axially movable in a distal direction relative to the housing and a mid-body axially fixed inside of the housing and coupled to the piston rod. The mid-body comprises at least one metal ratchet arm configured to prevent the piston rod from moving in the proximal direction. Moreover, a drug delivery device with such a drive assembly is presented.
摘要:
An assembly (30) for a drug delivery device (1) is provided, the assembly comprising an actuator (16) which is configured to perform a setting movement in order to set a dose of medication, and which is configured to perform a dispense movement in order to dispense a dose of medication. The assembly (30) further comprises a stop mechanism (31) which is configured to allow a setting movement of the actuator (16) after a maximum amount of medication has been delivered and to inhibit a dispense movement of the actuator (16) after a setting movement when a maximum amount of a medication has been delivered.