Precision spring lancet
AssigneeHellige GmbH
InventorsWilhelm A. Hofert, Peter F. Schlussel, Anton H. Sutor, Georg J. Ullrich
Life of this patent
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Abstract
A spring lancet holder for creating accurate standardized, reproducible puncture wounds in the skin for medical diagnostic purposes is disclosed in which accuracy and reproducibility is improved by minimizing the recoil transmitted to the lancet holder by actuation of the drive mechanism which pushes the lancet into the skin. In a preferred embodiment, a mass is shown which is caused to move in opposition to the motion of the lancet caused by a striker spring which is mounted between the lancet and the mass.
Claims8
An improved lancet holder for the creation of standard puncture wounds in the skin for diagnostic purposes of the type having a housing, a lancet mounted for motion in the housing, means for urging the lancet into contact with the skin, a trigger for activating the urging means, and means for withdrawing the lancet from the skin after contact therewith, wherein the improvement comprises:
- means for preventing recoil of the lancet holder in response to the activation of the urging means wherein the recoil preventing means includes a mass mounted for motion in the housing in opposition to the motion of the lancet upon activation by the trigger.
Dependencies are inferred from the claim text.