Surgical clip applier

摘要

In a surgical clip applier having a housing, a pair of handles pivotably connected to the housing, a channel assembly fixed to and extending from the housing, a series of clips arranged serially in end to end relation and carried by the channel assembly, a pair of jaw members secured to and extending from an end of the channel assembly opposite the housing, a clip follower for urging the series of clips towards the jaw members, a clip pusher member slidably disposed in the channel assembly for advancing a distalmost clip from the series of clips to a position between the jaw members in response to movement of the handles, and a jaw closure mechanism to effect closure of the jaw members to deform a clip positioned therebetween in response to movement of the handles, the improvement comprising a lockout mechanism for rendering the clip applier inoperable upon deforming a last clip of the series of clips, the lockout mechanism including a first blocking member for engagement with the cam plate to prevent movement of the cam plate, and at least one frangible member to disengage the cam plate from the handles upon closure of the handles when first blocking member is engaged with the am plate.