Patent ID: 7879058

Claim:
An incision device for forming an incision, the incision device comprising: (1) a housing including a first opening; (2) a lancet guide assembly including a lancet body and a lancet guide, the lancet body being mounted within the housing for pivotal movement and comprising a lancet blade covered by a removable protective cover, and the lancet guide being provided for guiding the lancet blade through an arcuate cutting stroke; (3) a trigger mechanism including a trigger arm mounted in the housing for pivotal movement between a ready-to-fire position and a firing position, the trigger arm having a trigger actuating element; and (4) a spring element arranged within the housing so as to be in an unbiased condition when the trigger arm is in the ready-to-fire position and so as to be biased by engaging a catch arranged in the housing as the trigger arm pivots towards the firing position, wherein the housing and lancet guide assembly are configured such that during the cutting stroke, the lancet blade extends through the first opening in the housing when the lancet body is pivoted between an unfired position and a fired position; wherein the trigger mechanism and the spring element are configured such that the spring element in the biased condition is released from the catch arranged in the housing when the trigger arm reaches the firing position; wherein the spring element is arranged such that when released from the catch the spring element exerts a force on the lancet body which pivots the lancet body from the unfired position to the fired position and thereby moves the lancet blade through the cutting stroke; and wherein the removable protective cover comprises a stopper which prevents the trigger arm from moving to reach the firing position when the protective cover covers the lancet blade by directly contacting the trigger actuating element.