Hypodermic needle with a protrusion

Details Hypodermic needle with a protrusion Hypodermic needle with a protrusion

1993-10-26

1999-01-12

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604272, A61M 500, A61M 532

Patent

active

058580069

ABSTRACT:
Hypodermic needle 2 is to be introduced between the skin and the tissue adjacent to the skin. To separate the skin from the tissue, cartilage or bone below the skin and to prevent the tip 6 of the needle 2 from piercing the tissue below the skin this invention discloses providing the extremity 6 of the needle with a protrusion 4. To prevent damage to the living being in which the needle 2 is introduced the transition of the protrusion 4 to the needle is smooth in all directions. The protrusion 4 is provided on that side of the needle which will be adjacent to the tissue, cartilage or bone of the living being.

REFERENCES:
patent: 1274081 (1918-07-01), Riethmueller
patent: 3209695 (1965-10-01), Crockford et al.
patent: 3277893 (1966-10-01), Clark
patent: 4735611 (1988-04-01), Anderson et al.
patent: 4795446 (1989-01-01), Fecht
patent: 4863428 (1989-09-01), Chevalier
patent: 5364373 (1994-11-01), Waskong et al.

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