Patent ID: 8998942
Filing Date: 2015-04-07
Classification: A61B

Abstract:
1. A lancet device, comprising: a housing; a shield at least partially disposed within the housing and movably associated therewith; a lancet disposed in the housing and axially movable through the shield and comprising a puncturing element, the lancet adapted for axial movement between an initial position wherein the puncturing element is disposed within the housing and a puncturing position wherein the puncturing element extends through a forward opening in the shield for a puncturing procedure; a drive spring disposed between a rearward end of the housing and the lancet for biasing the lancet to the puncturing position; and an actuator associated with the shield and in interference engagement with the lancet in the initial position, the actuator including at least one breakable shelf in interference engagement with the lancet and a sleeve extending from the at least one breakable shelf toward the forward opening in the shield, wherein a portion of the sleeve is disposed between the shield and the housing; wherein axial movement of the shield and the actuator into the housing causes the actuator to move the lancet toward and contact the rearward end of the housing to at least partially compress the drive spring, and wherein upon contact with the rearward end of the housing the force applied to retract the shield into the housing causes failure of the interference engagement between the actuator and the lancet thereby releasing the at least partially compressed drive spring and permitting the drive spring to bias the lancet through the shield to the puncturing position.