Safety hypodermic needle

Details Safety hypodermic needle Safety hypodermic needle

1991-10-09

1994-04-05

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

053000390

ABSTRACT:
The several embodiments include a hypodermic needle with a hollow member positioned over a portion of the needle, thus covering that portion of the needle. Prior to and during use, the hollow member is held away from the piercing end of the needle to allow it to be used in the normal manner. After the needle has become contaminated, a simple action by the user places the hollow member in a position covering the piercing end of the needle, and the hollow member is supported in this position against rearward pressure. The hollow member is similarly kept from sliding off the end of the needle.

REFERENCES:
patent: 4795432 (1989-01-01), Karczmer
patent: 4804371 (1989-02-01), Vaillancourt
patent: 4850977 (1989-07-01), Bayless
patent: 4850996 (1989-07-01), Cree
patent: 4863435 (1989-09-01), Sturman et al.
patent: 4921490 (1990-05-01), Spier et al.
patent: 4927416 (1990-05-01), Tomkiel

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