Patent ID: 8932313
Filing Date: 2015-01-13
Classification: A61B

Abstract:
1. A blood collection system for collecting blood from a body part for diagnostic purposes, comprising: a housing having a lancet guide configured to guide a lancet, a lancet drive configured to drive a puncture movement of the lancet, the puncture movement comprising a forward movement in a puncture direction, a reversal point, and a subsequent retraction movement in the direction opposite the puncture direction; the lancet drive comprising a drive spring arranged behind the lancet, wherein during the forward movement the drive spring is connected to the lancet to drive the lancet in the puncture direction and wherein the drive spring contracts during the retraction movement, further wherein the lancet is automatically pulled back in the retraction movement by the drive spring immediately upon reaching the reversal point; and an oscillation control device configured to control oscillation of the lancet after the lancet reaches the reversal point, wherein, at the end of the forward movement, a latch of the oscillation control device is disengaged, thereby actuating the oscillation control device, wherein the forward movement of the lancet before puncture is substantially unaffected by the oscillation control device, the oscillation control device configured to prevent repeated puncturing of the body part by the lancet.