Syringe Having Needle Isolation Features
AssigneeBecton, Dickinson and Company
InventorsPaul Keane, Paul Barkell, Volker Niermann, Sol Green
Life of this patent
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Abstract
The present invention is a syringe tip cap comprising a bottom portion, a top portion, an annular skirt extending therebetween and a plug that projects proximally from the bottom portion so as to be telescoped into the passage of a syringe tip. The plug provides means to allow air to be vented from the syringe with contacting the user. The syringe tip cap of the present invention also provides the user with an indication by tactile and visual feedback that the syringe has been vented.
Claims57
A tip cap for sealingly covering the distal end of a syringe comprising:
- a cylindrical housing having a bottom portion comprising an inner end wall and an outer end wall, a top portion comprising a rim and an annular skirt extending from said top portion to said bottom portion having an inner surface and an outer surface and means for venting air from said syringe and for providing tactile means to the user that said syringe has been vented by said tip cap.
A syringe assembly comprising:
- a syringe comprising a barrel, a syringe tip, a luer connection, a needle and a plunger rod with a piston member on the distal end of said plunger rod;
- and
- a tip cap over said distal end of said syringe barrel comprising a cylindrical housing having a bottom portion comprising an inner end wall and an outer end wall, a top portion comprising a rim and an annular skirt extending from said top portion to said bottom portion having an inner surface and an outer surface and means for venting air from said syringe and for providing tactile means to the user that said syringe has been vented by said tip cap.
A tip cap for a syringe, comprising:
- a housing comprising a bottom portion having an annular skirt extending therefrom, a first annular ring located within the skirt, and a second annular ring located within the first annular ring, wherein an annular space exists between at least a portion of the first annular ring and the second annular ring, and wherein the second annular ring or both the first annular ring and the second annular ring are capable of engaging a threaded luer connection.
A tip cap for a syringe, comprising:
- a housing comprising a bottom portion having an annular skirt extending therefrom and an annular ring located within the skirt, the annular ring having an interior surface and an exterior surface, wherein the exterior surface comprises at least two vertical strips,
- wherein the at least two vertical strips comprises a first strip of a first length and a second strip of a second length.
A tip cap designed for a syringe having a barrel, a syringe tip, and a luer connection at a distal end of the barrel, the tip cap comprising:
- a housing comprising a bottom portion having an annular skirt extending therefrom and an annular ring located within the skirt, wherein the inner diameter of the skirt at the end of the skirt opposite the bottom portion is greater than the outer diameter of the syringe barrel.
Dependencies are inferred from the claim text.