Patent ID: 9149221
Filing Date: 2015-10-06
Classification: A61B

Abstract:
1. A lancing device for propelling a lancet through a lancing stroke, the lancing device comprising: a housing including an axial bore; a drive mechanism including a lancet carrier and a drive spring, the lancet carrier holding the lancet and translatable axially within the housing through the lancing stroke, and the drive spring adapted to propel the lancet carrier through the lancing stroke; and a charging mechanism adapted to retract the lancet carrier to a charged position and including a charging button, a motion-conversion member, and a first cam-engaging surface, wherein the charging button includes a second cam-engaging surface, the first cam-engaging surface is formed by a portion of the drive mechanism, and the motion-conversion member includes first and second cam surfaces engaged respectively by the first cam-engaging surface and the second cam-engaging surface and configured to convert movement of the charging button in a first axial direction to movement of the lancet carrier in a second axial direction generally opposite from the first axial direction to retract the lancet carrier to the charged position; wherein the first and second cam surfaces are formed by slots in the motion-conversion member, the first cam-engaging surface is formed by a boss on the portion of the drive mechanism, and the second cam-engaging surface is formed by a boss on the charging button.