Patent ID: 8225790
Filing Date: 2012-07-24
Classification: A61M

Abstract:
1. An actuator, comprising: a loading element capable of being loaded with an actuation force; a trigger mechanism configured to counteract the actuation force of the loading element, and to fire the actuator by releasing the actuation force of the loading element in response to an inhalation breath; a yoke moveable in an actuation direction to load the loading element with actuation force and to arm the trigger mechanism; and a locking system configured to move between a locked position, wherein the locking system is configured to relieve the actuation force from the trigger mechanism and set the trigger mechanism in a neutral position, and an armed position, wherein the trigger mechanism is configured to be set in an armed position, wherein the trigger mechanism includes: a yoke lever configured to transform movement of the yoke to a pivotal movement of a lock end of the yoke lever; a lock member pivotally moveable between an armed position, wherein the lock member is configured to prevent further pivotal movement of the yoke lever lock end in the actuation direction, and an open position, wherein the yoke lever is configured to freely move beyond the armed position in the actuation direction, wherein, in the armed position the lock member is biased towards the open position by the yoke lever which in turn is biased in the actuation direction by the loading element via the yoke; a trigger element configured for movement in response to the inhalation breath; and a release member arranged between the lock member and the trigger element and configured to hold the lock member in the armed position and to release the lock member in response to movement of the trigger element, wherein the release member remains in contact with the trigger element when the lock member is released.