Butterfly needle with passive guard

Details Butterfly needle with passive guard Butterfly needle with passive guard

2005-01-11

2005-01-11

Hayes, Michael J. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S164080

Reexamination Certificate

active

06840920

ABSTRACT:
A butterfly needle device having a passive needle protection system includes a needle that has a proximal end, a distal tip and defines a needle axis. A cylindrical base member having an axially aligned groove is disposed over the needle with a first wing extending radially from the base member. A second wing is provided for rotation about the needle axis relative to the first wing between a closed configuration in which the wings are juxtaposed and an open configuration in which the wings are displaced from each other. A cylindrical needle guard having a plug is disposed over the needle. A spring biases the needle guard distally relative to the base member. A wing-activated mechanism is provided to align the plug with the groove after a closed-open-closed wing cycle allowing the needle guard to distally advance to cover the needle tip at the end of the cycle.

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