Improved firing button for automatic injection device

摘要

Improved Firing Button for Automatic Injection Device Abstract A firing button (32) for use in an automatic injection device comprises an outer portion (32c) configured for contact by a user of the automatic injection device to allow the user to depress the outer portion (32c) toward a first end of the automatic injection device; and an inner ring (32a) coupled to the outer portion and proximate to or in contact with a bifurcated end of a plunger in the automatic injection device, the inner ring (32a) configured to engage the bifurcated end of the plunger when the outer portion is depressed by the user, the inner ring having an inner diameter of between 6.0 mm and 6.7 mm.