Syringe and tip cap assembly
AssigneeBecton, Dickinson and Company
InventorsHubert Jansen, Claude Imbert
Life of this patent
Estimating the term…
Abstract
A tip cap assembly is provided for positive sealing engagement with the tip of a syringe barrel of a syringe. The tip cap assembly includes an inner cap formed from an elastomeric material dimensioned for sealing engagement with the tip of the syringe barrel. The tip cap assembly further includes an outer cap engaged with the inner cap, and a collar for mounting the tip cap assembly to the syringe barrel. In addition, the outer cap includes a plurality of frangible portions for evidencing tampering and for connecting the outer cap to the collar.
Claims11
A syringe with a syringe barrel having a substance receiving chamber and a distally projecting tip with a fluid passage extending therethrough and a tip cap assembly attached to the projecting tip, said tip cap assembly comprising:
- a collar concentrically surrounding the tip, the collar including an array of internal threads for threadingly engaging a needle hub;
- a resilient inner cap having opposed proximal and distal ends, said proximal end defining a tip engaging portion for sealingly engaging the tip to seal a substance contained in the chamber of said syringe barrel;
- a rigid outer cap securely engaged around at least a portion of said inner cap, said outer cap having a sleeve engageable with the collar such that said outer cap securely and releasably retains said collar therein and said inner cap in sealing engaged with the tip;
- and
- tamper indicator means provided on said sleeve of said outer cap for indicating separation of said outer cap from said collar and said tamper indictor means including a plurality of frangible portions separating said outer cap into a proximal portion and a distal portion, with the proximal portion surrounding said collar.
A syringe comprising:
- a syringe barrel having a substance receiving chamber and a tip projecting from a distal end of said syringe barrel with a fluid passage extending through said tip;
- a collar concentrically surrounding the tip;
- a resilient inner cap having opposed proximal and distal ends, said proximal end defining a tip engaging portion for sealingly engaging the tip to seal a substance contained in the chamber of said syringe barrel;
- a rigid outer cap securely engaged around at least a portion of said inner cap, said outer cap having a sleeve engageable with the collar such that said outer cap securely and releasably retains said collar therein and said inner cap in sealing engaged with the tip;
- and
- a plurality of frangible portions for indicating separation of said outer cap from said collar separating said outer cap into a proximal portion and a distal portion, with the proximal portion surrounding said collar.
Dependencies are inferred from the claim text.