Patent ID: 9168339
Filing Date: 2015-10-27
Classification: A61M

Abstract:
1. An injection device including an injection complete indicator configured to provide both a visual indication and a kinetic impact indication, the device comprising: a housing; a plunger movable in said housing between cocked and fired positions under the influence of a plunger drive source; an indicator element biased towards an injection complete indicating position by an indicator bias; and a hold-release arrangement configured to hold the indicator element against the force of the indicator bias responsive to arrival of said plunger at or near the fired position to release said indicator element for movement under the influence of said indicator bias to move to said injection complete indicating position to impact a stop to create said kinetic impact and to provide a visual indication, wherein as the plunger moves toward the fired position, the plunger energizes the indicator bias, and the plunger and the indicator element have cooperating surfaces which engage to move the indicator element with the plunger during a portion of the plunger stroke to energize the indicator bias.