Patent ID: 7955348
Filing Date: 2011-06-07
Classification: A61B

Abstract:
1. A lancing device for use with a removable lancet having a sharp tip, comprising: a housing having an interior space and an open front end through which the lancet can be inserted; a lancet holding assembly disposed in the housing and configured to receive within a cavity of the lancet holding assembly a portion of the lancet when the lancet is inserted by a user through the open front end of the housing, the lancet holding assembly being movable between at least a cocked configuration and an uncocked configuration; an insertion path within the housing extending between the open front end and a portion of the cavity of the lancet holding assembly that receives the lancet; an interlock movably disposed within the housing and having a forward-most end facing the open front end of the housing, the forward-most end configured to block the lancet from being fully inserted along the insertion path by the user to prevent the lancet holding assembly from receiving the lancet when the lancet holding assembly is in the cocked configuration, wherein the interlock is configured such that pressure on the lancet by the user when the lancet is in contact with the forward-most end of the interlock biases the forward-most end of the interlock further into the insertion path; and a cocking and firing arrangement comprising a trigger engaging the lancet holding assembly, the trigger movable to at least a first position in which the trigger retains the lancet holding assembly in the cocked configuration and a second position in which the trigger releases the lancet holding assembly to permit the lancet holding assembly to move to the uncocked configuration, the trigger comprising a user-actuated trigger button having a cam surface, wherein the interlock includes a cam follower configured to engage the cam surface to urge the interlock away from the user-actuated trigger button when the trigger moves from the first position to the second position.