Shielded needle

Details Shielded needle Shielded needle

1984-05-24

1986-03-04

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 500

Patent

active

045739765

ABSTRACT:
An apparatus for injecting a substance into a human or animal comprising a body adapted to have the substance to be injected pass therethrough, a needle mounted on the body and a needle guard mounted on the body between an extended position in which the guard obstructs access to the point of the needle and a retracted position in which the guard does not materially obstruct access to the point of the needle. The guard is releasably retained in the retracted position, and interlocking members on the body and the guard are responsive to generally axial movement of the guard to the extended position for interlocking to substantially prevent movement of the guard back toward the retracted position.

REFERENCES:
patent: 2925083 (1960-02-01), Craig
patent: 3780734 (1973-12-01), Wolff
patent: 3890971 (1975-06-01), Leeson et al.
patent: 4425120 (1984-01-01), Sampson et al.

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