| 摘要 |
A system and method for resetting a locking mechanism of a medicament delivery or training device is provided herein. The system and method include a central shaft comprising a slotted ring, a pronged ring, a spring, a spring clamp, an actuator button, and a lock ring. Following the firing of the medicament device, wherein the actuation member has been activated and the lock ring in the unlocked position, the system and method can be initiated to reset the locking mechanism such that the components of the system and the lock ring are reset to the locked position before the actuation member can be actuated for a subsequent injection or training. |
| 主权项 |
1. A system for resetting a medicament device locking mechanism from an unlocked position to a locked position, said system comprising:
a medicament device housing comprising a central shaft, said central shaft comprising at least a first hook at a first end thereof; a central shaft ring slidably engaged with the central shaft and movable along a longitudinal axis of the central shaft; a slotted ring slidably engaged with the central shaft and associated with the central shaft ring, said slotted ring comprising at least one guiding channel along its inner surface, said at least one guiding channel formed between at least two raised portions on an inner surface of the slotted ring; a pronged ring slidably engaged with the central shaft and movable along the longitudinal axis of the central shaft, said pronged ring comprising at least one prong, said at least one prong slidably engaged within a guiding channel of the slotted ring, said pronged ring comprising one or more openings, one or more ridge portions adjacent to said one or more openings, and one or more notches around its circumference; a spring associated with the pronged ring at a first end of the spring, said spring associated with a spring clamp at a second end of the spring, wherein said spring is arranged to exert a torque upon the pronged ring; and a lock ring surrounding at least a portion of the first end of the housing, said lock ring comprising one or more spines projecting inwardly, said one or more spines configured to interface with the one or more notches of the pronged ring, the lock ring comprising a locked position and an unlocked position; wherein upon actuation of the system, the central shaft ring is moved in a longitudinal direction toward the first end of the central shaft, forcing the slotted ring toward the first end of the central shaft such that at least one of the raised portions of the slotted ring depresses the first hook of the central shaft, and the pronged ring is disengaged from the slotted ring such that the first hook engages the ridge portion of the pronged ring; wherein a torsional force from the spring rotates the pronged ring axially relative to the central shaft, rotating the lock ring from the unlocked position to the locked position and rotating the pronged ring such that at least the first hook aligns with an opening of the pronged ring, wherein compression force from the spring forces the at least one prong of the pronged ring to re-engage with the guide channel of the slotted ring to complete the reset of the system from the unlocked position to the locked position. |
