Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-08-16
1998-02-03
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604198, 604263, A61M 532
Patent
active
057138710
ABSTRACT:
A hypodermic needle having a rigid, clear, protective sleeve encircling the perimeter of the barrel of the hypodermic needle and connected to the plunger of the hypodermic needle, the protective sleeve being drawn toward the bevel of the hypodermic needle as the plunger is depressed. Additionally, the preferred embodiment includes a locking device that locks the protective sleeve in place once the plunger is fully depressed and the injection is complete, preventing reuse of the hypodermic needle and reducing the chance of accidental contact with the bevel.
REFERENCES:
patent: 4484915 (1984-11-01), Tartaglia
patent: 4915699 (1990-04-01), Kornberg
patent: 5026353 (1991-06-01), Bartman
patent: 5135510 (1992-08-01), Maszkiewicz et al.
patent: 5300040 (1994-04-01), Martin
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