Automatic needle tip guard

Details Automatic needle tip guard Automatic needle tip guard

1989-11-21

1991-10-22

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604198, 604263, A61M 500

Patent

active

050591800

ABSTRACT:
A guard for the tip of a hypodermic needle which is activated automatically when the needle is withdrawn after use. The guard resides initially around the shaft of the needle near the needle tip. Insertion of the needle causes the guard to be pushed back by the surface of the skin. This releases the spring activated locking mechanism such that when the needle is withdrawn the spring pushes the guard over the tip of the needle and the guard becomes automatically locked in place.

REFERENCES:
patent: 4804371 (1989-02-01), Vaillancourt
patent: 4887998 (1989-12-01), Martin et al.
patent: 4894055 (1990-01-01), Sudnak
patent: 4911693 (1990-03-01), Paris
patent: 4921490 (1990-05-01), Spier et al.
patent: 4946446 (1990-08-01), Vadher
patent: 4966593 (1990-10-01), Lennox

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