Recording unit
The present invention relates to a recording unit arranged to be connected to a medicament delivery device, which recording unit comprises a generally elongated housing ( 10; 90 ) having dimensions so as to enclose at least a distal part of the medicament delivery device ( 50 ), the recording unit comprising a recording mechanism ( 60; 120 ) provided with an electronic circuit ( 64; 134 ) and arranged at a distal end inside said housing, said electronic circuit comprising an activation element ( 40; 108 ) operably arranged to activate said electronic circuit ( 64; 134 ) when said medicament delivery device is inserted in said housing, said electronic circuit ( 64; 134 ) comprising sensor elements ( 80; 140 ) capable of sensing status changes of said medicament delivery device during use.
1. A recording unit arranged to be connected to a medicament delivery device, which recording unit comprises:
a generally elongated housing having dimensions so as to enclose at least a distal part of the medicament delivery device,
a support element positioned inside the housing and located at a distal end of the housing, where the support element comprises a transversal wall,
the recording unit comprising a recording mechanism provided with an electronic circuit and arranged at a distal end inside the housing,
a compression spring having a proximal end abutting the transversal wall and having a distal end abutting the recording mechanism such that the spring exerts a force on the support element biasing the support element in a proximal direction,
the electronic circuit comprising an activation element operably arranged to activate the electronic circuit when the medicament delivery device is inserted in the housing,
the electronic circuit comprising a sensor element capable of sensing status changes of said medicament delivery device during use.
2. The recording unit according to claim 1 , further comprising
a locking element for locking the medicament delivery device in the proximal direction when inserted into the housing.
3. The recording unit according to claim 2 , wherein the locking element comprises a proximal passage provided with a first and a second proximally extending arms.
4. The recording unit according to claim 3 , wherein both the first and the second proximally extending arms comprise at least one radially inwardly protruding ledge.
5. The recording unit according to claim 2 , further comprising a holding element for releasably holding the locking element in a locking position.
6. The recording unit according to claim 5 , wherein the holding element comprises an area with removed material forming a band shaped structure that provides a resiliency between a proximal part and a distal part of the holding element.
7. The recording unit according to claim 6 , wherein the holding element comprises an outwardly extending protrusion arranged to fit into an elongated passage on a surface of the generally elongated housing.
8. The recording unit according to claim 5 , wherein the holding element is arranged to fit into and coaxial with the generally elongated housing.
9. The recording unit according to claim 1 , wherein the holding element is arranged slidable inside the housing between
a holding position where the locking element is in a locking position, and
a release position wherein the locking element may be moved out of engagement with the medicament delivery device.
10. The recording unit according to claim 1 wherein the sensor element comprises a force sensor capable of sensing force variations in the medicament delivery device during use.
11. The recording unit according to claim 1 , wherein the sensor element comprises a movement sensor capable of sensing movement of the medicament delivery device relative the recording unit during use.
12. The recording unit according to claim 11 , wherein the movement sensor is capable of sensing movement of components of the medicament delivery device.
13. The recording unit according to claim 1 , further comprising at least one user communication element capable of providing a user with information regarding the status of the medicament delivery device.
14. The recording unit according to claim 13 , wherein the user communication element is capable of providing audible tactile information.
15. The recording unit according to claim 13 , wherein the user communication element is capable of providing tactile information.
16. The recording unit according to claim 1 , further comprising a communication module capable of communicating with at least one external communication device.
17. The recording unit according to claim 16 , wherein the communication module comprises near range communication technology.
18. The recording unit according to claim 16 , wherein the communication module comprises cellular radio communication technology.
19. The recording unit according to claim 16 , wherein the communication module comprises wireless local area network communication technology.
20. The recording unit according to claim 1 , wherein the medicament delivery device has an outer distal end having a defined shape and the transversal wall further comprises a proximal facing portion that is configured to correspond to the defined shape of the outer distal end of the medicament delivery device.