Signal delaying assembly for a medicament delivery device
The present invention relates to a signal delaying assembly for a medicament delivery device, said assembly comprising a delay female member containing a fluid, a delay male member having at least one passage, a delay unit connected to the delay female member or to the delay male member, wherein a relative movement between the male member and the female member and towards each other causes the transfer of said fluid from said female member through the at least one passage for slowing said movement, characterized in that the delay unit is releasably connected to a signal generating assembly for delaying at least one feedback signal.
1. A medicament delivery device, comprising:
a signal generating assembly comprising a signal generating member and a force element;
a plunger rod, wherein the force element is arranged tensioned between said signal generating member and the plunger rod for moving the plunger rod and the signal generating member; and
a signal delaying assembly positioned distal to the plunger rod and the force element, the signal delaying assembly comprising:
a delay female member containing a fluid,
a delay male member having at least one passage,
a delay unit connected to the delay female member or to the delay male member, and
a support element releasably connected to the delay unit,
wherein a relative movement between the male member and the female member and towards each other causes a transfer of said fluid from said female member through the at least one passage for slowing said relative movement,
wherein the delay unit is movably arranged in relation to the support element from a delaying position in which the delay unit is in contact with the support element and with the signal generating assembly, to a released position in which the delay unit is disconnected from both the support element and the signal generating assembly, and
wherein the relative movement between the delay unit and the support element to the released position causes the signal generating assembly to generate at least one feedback signal indicating that a dose of medicament from the medicament delivery device has been completely delivered.
2. The medicament delivery device of claim 1 ,
wherein the relative movement between the delay female member and the delay male member causes the relative movement between the delay unit and the support element from the delaying position to the released position.
3. The medicament delivery device of claim 1 ,
wherein the delay unit comprises a flexible arm and wherein a free end of the flexible arm is arranged with an inwardly directed ledge.
4. The medicament delivery device of claim 3 ,
wherein the delay unit is longitudinally movable in relation to the support element from the delaying position in which the flexible arm is in contact with the support element and in which the inwardly directed ledge is in contact with the signal generating assembly,
to the released position in which the flexible arm is disconnected from the support element and in which the inwardly directed ledge is disconnected from the signal generating assembly by a radial movement of the flexible arm in relation to the support element.
5. The medicament delivery device of claim 1 , wherein the signal generating member is releasably connected to a holding unit of the medicament delivery device, and wherein a pre-determined proximal and longitudinal movement of the plunger rod in relation to the holding unit allows the signal generating member to be released such that the force element forces a distal movement of the signal generating member in relation to the holding unit.
6. The medicament delivery device of claim 5 ,
wherein the delay unit is in contact with the signal generating member such that the distal movement of the signal generating member causes the delay unit to move from the delaying position to the released position.
7. The medicament delivery device of claim 6 ,
wherein the delay unit in the released position disconnects from both the support element and the signal generating member whereby the signal generating member is forced distally in relation to the support element and the delay unit by the force element.
8. The medicament delivery device of claim 7 ,
wherein the delay unit comprises a visual indicia, such that when the delay unit is in the released position, said visual indicia is visible to a user.
9. The medicament delivery device of claim 5 , wherein the distal movement of the signal generating member causes an interaction between the signal generating member and a relatively fixed surface such that the at least one feedback signal is generated.
10. The medicament delivery device of claim 9 ,
wherein said interaction is an audible impact.
11. The medicament delivery device of claim 9 ,
wherein said interaction is a tactile impact.
12. The medicament delivery device of claim 1 , wherein the fluid comprises a highly viscous fluid.
13. The medicament delivery device of claim 1 , wherein the medicament delivery device comprises an autoinjector.