Safety lancet

Details Safety lancet Safety lancet

1993-12-13

1995-08-08

Aschenbrenner, Peter A.

Surgery

Instruments

Cutting, puncturing or piercing

604136, A61B 1734

Patent

active

054394732

ABSTRACT:
A lancet assembly for pricking a person's skin for the purpose of causing a drop of blood to seep out, which can be collected and analyzed. The lance assembly comprises a housing and spring means carrying a lancet blade in the housing. The spring means has a non-linear characteristics, so that when the spring means is released from a compressed state a first spring constant is effective during an initial expansion of the spring means up to a predetermined limit of expansion, and a second spring constant smaller than the first spring constant is effective during a further expansion of the spring means beyond the predetermined limit of expansion.

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