A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/93
A61M 5/32 (2006.01) A61M 5/31 (2006.01)
Patent
CA 2030255
SYRINGE ASSEMBLY ABSTRACT A hypodermic syringe assembly includes a barrel having an open proximal end, a chamber for retaining fluid and a tip portion extending from a distal end of the barrel having a passageway therethrough communicating with the chamber. A needle cannula having a distal end extends outward- ly from the tip portion and includes a lumen in fluid communication with the passageway. A needle shield assembly includes a resilient needle sheath having an open proximal end, a closed distal end, a sidewall defining a receptacle therein and is positioned within an elongate rigid shield having an open proximal end, a distal end and a sidewall therebetween. Structure for holding the sheath within the shield is provided so that the sheath cannot be removed from the shield during normal use of the syringe assembly. The sheath includes cannula sealing means at the distal end of the receptacle. The needle shield assembly is positioned with the distal end of the cannula engaging the cannula sealing means and the proximal end of the sheath removably engaging the tip portion to hold the needle shield assembly on the barrel while simultaneously sealing the lumen of the cannula so that the sheath surrounds the entire portion of the cannula which extends outwardly from the tip portion of the barrel.
Becton Dickinson And Company
Gowling Lafleur Henderson Llp
LandOfFree
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