| CPC A61M 5/24 (2013.01) [A61M 2005/2492 (2013.01); A61M 2005/31588 (2013.01); A61M 2205/581 (2013.01); A61M 2205/8206 (2013.01)] | 18 Claims |
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1. A medicament delivery device having an axis A, the device comprising:
a first unit having a distal closed end and an open connecting proximate end, the open connecting proximate end comprising a driving unit with a driving element that moves in a reciprocating fashion; and
a second unit with a housing adapted to receive a medicament container and having a first proximal medicament delivery end and a second distal connecting end, where the second distal connecting end is adapted to be connected with the open proximate connecting end of the first unit by insertion of the second connecting end into the open connecting proximate end along the axis A,
wherein one of the open connecting proximate end and second distal connecting end is equipped with at least one flexible part that moves radially inwards and outwards relative to the axis A due to a force created by the insertion of the second distal connecting end into the open connecting proximate end,
wherein a movable locking element is arranged coaxially within the first unit,
wherein the movable locking element is configured to interact with the at least one flexible part due to a relative axial movement of the at least one flexible part and the locking element so as to lock the open connecting proximate end and the second distal connecting end of the device relative to each other,
wherein the at least one flexible part has a wedge-shaped guiding extensions on its outer surface interacting with an inner surface of the locking element,
wherein the driving unit is configured to move the driving element to engage the movable locking element, wherein the moveable locking element is axially moved by the driving element in the distal closed end direction to release the at least one flexible part from the movable locking element, and wherein releasing the at least one flexible part from the movable locking element enables a disconnection of the first unit and the second unit, and
wherein the second distal connecting end of the housing has a longitudinal cross-section shape of varying dimensions and an extension formed at the end of an outer surface of the second distal connecting end.
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15. A medicament delivery device having an axis A, the delivery device comprising:
a first unit having a distal closed end and an open connecting proximate end, the open connecting proximate end comprising a driving unit with a driving element that moves in a reciprocating fashion; and
a second unit with a housing adapted to receive a medicament container and having a first proximal medicament delivery end and a second distal connecting end, where the second distal connecting end is adapted to be connected with the open proximate connecting end by insertion of the second connecting end into the open connecting proximate end along the axis A,
wherein one of the open connecting proximate end and second distal connecting end is equipped with a flexible part that moves radially inwards and outwards relative to the axis A due to force created by the insertion of the second distal connecting end into the open connecting proximate end and a movable locking element arranged within the first unit coaxially and configured to interact with the flexible part due to a relative axial movement of the flexible part and the locking element so as to lock the open connecting proximate end and second distal connecting end of the device relative to each other,
wherein the locking element is one of a separate axially movable element and a locking element integrated with the open connecting proximate end,
wherein the driving unit is configured to move the driving element to engage the locking element, wherein the moveable locking element is axially moved by the driving element in the distal closed end direction to release the at least one flexible part from the movable locking element, and wherein releasing the flexible part from the locking element enables a disconnection of the first unit and the second unit,
wherein the flexible part is one of an integral part of one of a frame and the second distal connecting end and a separate flexible part arranged on the open connecting proximate end, and
wherein a first inserting and locking state of the device can be achieved in one single stage.
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