Disposable lancet for finger/heel stick
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United States of America Patent
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-
May 5, 1998
Grant Date -
N/A
app pub date -
Jul 3, 1997
filing date -
Jul 3, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lancet type device (20) having a movable and retractable lancet (46) is disclosed. A lancet (46) beyond the end of a lancet body (24). The device includes an actuating, a retracting and locking mechanisms that move and retract a sharp distal tip (48) linearly into and out of contact with a patient's skin. The actuating mechanism includes an arm (26) with a blind conical hole (56) and a conical top (52) of a lancet body (24). The retracting and locking mechanism includes a blind cylindrical hole (58) of an arm (26), a cylindrical head (50) of a lancet body (24) and a spring (54). In one embodiment, a spring (54) is molded as a part of a lancet body (24). In another embodiment, a spring (68) is made as separate part from metal. Contact between a blind conical hole (56) and a conical top (52) moves a lancet body (24) in a linear direction along the axis. Contact between a cylindrical head (50) and a blind cylindrical hole (56) locks an arm (26) inside a case (22).
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