Lancing device with automatic stick and return

Details Lancing device with automatic stick and return Lancing device with automatic stick and return

2005-08-16

2005-08-16

Woo, Julian W. (Department: 3731)

Surgery

Instruments

Cutting, puncturing or piercing

C606S181000

Reexamination Certificate

active

06929649

ABSTRACT:
A lancing device with automatic stick and lance return features is disclosed. A drive mechanism within the unit comprises a slider-crank linkage combination. It is biased by a spring member to cause automatic firing once a crank member advanced by a user causes movement of an internal linkage member beyond its fully-cocked position. After firing, the lance is withdrawn so as not to pose a threat of secondary injury to the user. In use, the device is substantially silent though its course of operation. Yet, its configuration lends itself to producing a very quick, virtually painless stick with minimal recoil or shock to the device.

REFERENCES:
patent: 4924879 (1990-05-01), O'Brien
patent: 5029583 (1991-07-01), Meserol et al.
patent: 5196025 (1993-03-01), Ranalletta et al.
patent: 5304193 (1994-04-01), Zhadanov
patent: 5527334 (1996-06-01), Kanner et al.
patent: 5554166 (1996-09-01), Lange et al.
patent: 5938679 (1999-08-01), Freeman et al.
patent: 6206901 (2001-03-01), Rutynowski et al.
Chapman, “The Management of Pain” 2ndEdit. vol. 1, p. 122-132 (1990).

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