A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/32 (2006.01) A61M 5/50 (2006.01)
Patent
CA 2354346
A hypodermic syringe with a selectively retractable includes an elongate barrel having an open proximal end and a distal end that defines a receiver with an inwardly projecting shoulder. The syringe has a hollow elongate plunger with an open proximal end and a closed distal end. There is an elongate plug extending distally into the hollow plunger from the open proximal end forming an enclosed cavity within the plunger. The syringe has an elongate hub having a passageway therethrough, a distally extending stem, and a proximal flange with an engagement for engaging said barrel. The syringe has an elongate needle having a fluid path therethrough, a sharpened distal end and a proximal end. The needle is mounted in the passageway so that the sharpened distal end projects. The syringe has an elongate spring disposed about the stem of the hub that is compressed between the flange and the inwardly projecting shoulder of the receiver to provide a bias. There is a hollow sleeve sized to fit within the receiver over the elongate spring with a proximal sharpened end disposed in the groove of the flange. When a user applies a sufficient force, the hub is sufficiently moved distally in the receiver for the cutting edge of the sleeve to cut through the flange and the closed distal end of the plunger to expose the cavity for withdrawal of the needle into the syringe.
Bush Charles L. Jr.
Hoeck Roger
Becton Dickinson And Company
Gowling Lafleur Henderson Llp
LandOfFree
Hypodermic syringe with selectively retractable needle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hypodermic syringe with selectively retractable needle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hypodermic syringe with selectively retractable needle will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1550974