Snap ring needle guard

Details Snap ring needle guard Snap ring needle guard

1991-04-02

1993-02-02

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604110, 604198, 128919, A61M 5178

Patent

active

051834685

ABSTRACT:
A guard (6) for the tip of a catheter insertion needle (5) which resides initially inside the standard catheter hub (3) and becomes automatically locked onto the tip of the standard insertion needle when the needle is withdrawn from the catheter. A small internal pivoting lever (8) sensitive to the end of the needle closes the internal teeth (12) of a snap ring (7) onto the needle (5) to hold the guard (6) in one direction while the one way lever prevents the needle tip from exiting the guard in the other direction.

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patent: 4952207 (1990-08-01), Lemieux
patent: 4964854 (1990-10-01), Luther
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patent: 5013305 (1991-05-01), Opie et al.
patent: 5051109 (1991-09-01), Simon
patent: 5051109 (1991-09-01), Simon
patent: 5059180 (1991-10-01), McLees
patent: 5085648 (1992-02-01), Purdy et al.
patent: 5098389 (1992-03-01), Cappucci

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