Needle protective device

Details Needle protective device Needle protective device

1994-09-19

1995-06-20

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604263, A61M 532

Patent

active

054257212

ABSTRACT:
A thermoplastic housing formed of two mirror image halves snap fitted together has first and second resiliently cantilevered channeled ramps each having mating halves on opposite sides of a housing chamber. The ramps are on first and second angularly spaced axes aligned with a first needle receiving opening. A needle extends from a cylindrical body having an enlarged collar, the body being received between the first ramp halves with the needle protruding through the opening from the housing chamber and the collar restrained by the first ramp halves at corresponding coplanar collar edges. A spring surrounds the needle and abuts the body and housing urging the collar into axial locked engagement with the oppositely spaced first ramp halves. A cam displaces the body to the second axis wherein the spring forces the body rearwardly until the collar engages the edges of the halves of the resilient second ramp and a shoulder formed in the housing placing the needle wholly within the chamber and locking the needle assembly in opposite axial directions.

REFERENCES:
patent: 5295974 (1994-03-01), O'Laughlin
patent: 5336199 (1994-08-01), Castillo et al.
patent: 5360408 (1994-11-01), Vaillancourt
patent: 5368568 (1994-11-01), Pitts et al.

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