Lancing device and lancet

摘要

A lancing device and lancet are provided with depth-control, lancet ejection, and/or guidance mechanisms. The depth-control mechanism includes a dial rotationally mounted at a distal end of the housing of the lancing device, the dial being coupled to a linkage whereby rotation of the dial imparts translational movement to a stop surface of the linkage to limit the stroke of the lancet and thereby control lancing penetration depth. The ejection mechanism includes an ejector that is advanced into contact with a transversely flared flange of the lancet to discharge the lancet from the lancing device. The guidance mechanism includes an inner guidance housing for restricting out-of-axis movement of a lancet carrier.

主权项

1. A lancing device comprising:
a lancet carrier comprising a lancet carrier stop; a drive spring for propelling the lancet carrier along a lancing stroke defining a stroke distance; and a depth control mechanism for adjusting the stroke distance of the lancet carrier to control a depth of lancet penetration into a skin surface, the depth control mechanism comprising: a dial that is rotational about a center of rotation, the dial further comprising a mounting pin eccentrically offset from the center of rotation; and a stop bar having a first end mounted to the mounting pin of the dial and a second end comprising a stop surface for abutment with the lancet carrier stop to adjust the stroke distance of the lancet carrier and thereby adjust the depth of lancet penetration into the skin surface.