DISPENSING MECHANISM FOR A MEDICAL DEVICE

摘要

A dispensing mechanism for administering a dosage of a medicament includes dosage setting means (7) for setting the dosage of a medicament to be administered; expelling means (15) for expelling a medicament from a medicament container; and coupling means (21) operatively coupled with the dosage setting means (7) and the expelling means (15), wherein the coupling means (21) is arranged to convert displacement of the dosage setting means (7) into a displacement of the expelling means (15) in a first direction, wherein the expelling means (15) includes a ratchet means (18a, 18b), and wherein the mechanism includes a first and a second independently moveable resisting pawl (14a, 14b) means facing a common side of the ratchet means (18), the first and the second resisting pawl means (14a, 14b) being configured to engage with the ratchet means (18a, 18b) and resist displacement of the expelling means (15) in a second direction opposite to said first direction.

主权项

1. A dispensing mechanism for administering a dosage of a medicament, the mechanism comprising:
a body; dosage setting means for setting the dosage of a medicament to be administered, the dosage setting means being moveable in a first direction for setting the dose and in a second direction for administering the dose; and an indication element, the indication element being arranged to be displaced by a predetermined movement of the dosage setting means; and wherein the mechanism further includes conversion means configured, during displacement of the indication element, to convert a movement of the dosage setting means of a first magnitude into a movement of the indication element of a second magnitude, and wherein said first magnitude of movement is different to said second magnitude of movement.