Low cost safety lancet

Details Low cost safety lancet Low cost safety lancet

2011-06-07

2011-06-07

Nguyen, Anhtuan T (Department: 3731)

Surgery

Instruments

Cutting, puncturing or piercing

Reexamination Certificate

active

07955347

ABSTRACT:
A lancing device has a housing, an activation/retraction control assembly, and a lancet. The control assembly and the housing have cooperating engagement structures such as detents that disengage after a predetermined launch force is applied to the control assembly. In this way, the lancet is driven to its puncturing position without the use of a drive spring. In addition, the control assembly and the lancet have cooperating releasable engagement structures such as notched sections and tamped protrusions that disengage when the lancet reaches its puncturing position, thereby freeing the lancet from the control assembly. And the control assembly has angled retraction structures that engage the freed lancet to bias it back safely into the housing.

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