| 摘要 |
<p>The present invention relates to a medicament delivery device comprising a housing (8); a medicament container (18) arranged inside said housing (8), a drive mechanism (12, 14, 44) comprising a plunger rod (12) capable of acting on a stopper (16) inside said medicament container (18) for expelling a dose of medicament, said drive mechanism further comprising a force member (14) acting on said plunger rod (12), an actuation mechanism (10) capable of releasing said drive mechanism upon activation, dose setting means (42) capable of limiting the dose expelled from the medicament container (18), - electronics (51) capable of handling information signals. The invention is characterised in that it further comprises a first sensor unit (49) connected to said electronics (51), that said electronics (51) is provided with information regarding drug volume of said medicament container, that said first sensor unit (49) is capable of sensing an initial start position and sensing and measuring the actual position of the plunger rod (12) and that said first sensor unit (49) is capable of transmitting said positions to said electronics (51), whereby said electronics (51) is capable of calculating remaining dose quantity in the medicament container (18).</p> |
